Category: Новосибирский государственный университет

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Novosibirsk, November 13, 2025: Today, the 3rd Scientific and Industrial Forum "Golden Valley 2025" opened at Novosibirsk State University. It is a key event in Siberia, bringing together representatives of science, industry, high-tech companies, and government agencies. This year, the forum brought together over 1,000 participants from across the country, including Khabarovsk, Barnaul, Kemerovo, Tomsk, Omsk, Kazan, Rostov-on-Don, St. Petersburg, Moscow, and other cities.

"This forum continues the glorious traditions established here in Akademgorodok by the founding fathers—the idea of close collaboration between education, science, and industry. The forum's overarching theme is the 125th anniversary of Mikhail Alekseevich Lavrentiev. His contribution to science and the organization of science is, of course, invaluable for our entire country. November 19 marks the birthdays of two great scientists and statesmen—Mikhail Alekseevich Lavrentiev and Mikhail Vasilyevich Lomonosov. Therefore, holding the 'Golden Valley' forum on the eve of this momentous occasion is highly symbolic," noted NSU Rector and RAS Academician Mikhail Fedoruk.

The forum will discuss technology trends in key areas, divided into six sections: "Aviation and Unmanned Systems," "Microelectronics and Critical Technologies," "Energy," "Industrial Innovation," "Medicine and Longevity," and "Smart City Technologies and AI." Special attention will also be paid to the role of artificial intelligence in various areas of human activity. The forum will include panel discussions, roundtables, and open lectures.

"The forum's central theme is the anniversary of Mikhail Alekseevich Lavrentiev, the founder of the Siberian Branch. But this year, as we all know, we also celebrate the centenary of Gury Ivanovich Marchuk, who also laid the foundations for scientific fields in Akademgorodok. Since the founding of the Siberian Branch in 1957 and the subsequent establishment of the university, both science and education in our region have developed inextricably. Then, innovative structures—technology parks—began to emerge. Currently, Novosibirsk and Akademgorodok boast several growth areas, including, of course, Novosibirsk State University, Akadempark, and the Siberian Branch of the Russian Academy of Sciences. I am confident that the forum will gain momentum. Novosibirsk is rightly called the scientific capital of Russia; it fully deserves this title and will, I am confident, continue to uphold it," emphasized Dmitry Markovich, First Deputy Chairman of the Siberian Branch of the Russian Academy of Sciences and Academician of the Russian Academy of Sciences.

It's worth noting that this year's event is taking place in the new classroom building, which officially opened on August 29 with the participation of Russian Deputy Prime Minister Dmitry Nikolaevich Chernyshenko. The building accommodates approximately 1,700 students and features four classrooms, one of which, with a capacity of 400, is the largest at NSU. It also houses a research library with a collection of over 1 million books. The building offers excellent conditions for student learning and project activities, as well as for hosting such large-scale events.

"We are honored to bring together the best minds in science, representatives of leading educational institutions, corporations, innovative companies, and industrial enterprises within the walls of Novosibirsk State University, in the heart of our Akademgorodok. This forum is a clear embodiment of our key goal: the integration of academic science, higher education, and high-tech business. The regional government sees its role as purposefully creating an environment conducive to such interaction. We place a special emphasis on supporting technological entrepreneurship and the commercialization of developments. To this end, we are implementing and developing a range of support measures: from grants for startups and incentives for innovative companies to expanding the infrastructure of our technology park. Our shared goal is to build effective 'tech elevators' that will enable Novosibirsk know-how to quickly move from a scientific idea and laboratory prototype to a sought-after product on the global market. It is here, at the forum, that the foundations for their launch are laid," emphasized Vadim Vasiliev, Minister of Science and Innovation Policy of the Novosibirsk Region.

Representatives of leading companies will speak at the forum, including the United Engine Corporation, Gazprom Neft, 2GIS, Novosibirsk Generating Company, and others. On the first day, a strategic session, "Innovations in the Fuel and Energy Sector," will be held, along with a meeting between industrial leaders and the leadership of Novosibirsk State University and SB RAS institutes, with the participation of the Office of the Presidential Plenipotentiary Envoy to the Siberian Federal District and the Interregional Association "Siberian Agreement." The second day will feature a strategic session, "Using Artificial Intelligence Technology to Solve Public Sector Problems," with the participation of the Novosibirsk Region Ministry of Digital Development, and the MTS True Tech Day conference, "The World of IT from Within."

The forum will also feature opening lectures: on the first day, Mikhail Lavrentyev, Corresponding Member of the Russian Academy of Sciences, will deliver a lecture entitled "Academician Mikhail Alekseevich Lavrentyev: Milestones in His Life," while Pyotr Marchuk will speak about the 100th anniversary of Academician Gury Ivanovich Marchuk. On the second day, Academician Sergei Alekseenko will present a lecture entitled "Extreme and Catastrophic Climate Events: Relationships with Energy," and Academician Dmitry Zharkov will discuss how cells repair genes.

The forum's partners included the Siberian Branch of the Russian Academy of Sciences, the Council of Rectors of the Novosibirsk Region, the "Commonwealth. Efficiency. Development" (CED) Business Club of Enterprise Managers, the NSU Alumni Association, the Novosibirsk Academgorodok Technopark, the Sistema Charitable Foundation, and the MTS digital ecosystem. The forum is supported by the Government of the Novosibirsk Region.

Please note: This information is raw content obtained directly from the source. It represents an accurate account of the source's assertions and does not necessarily reflect the position of MIL-OSI or its clients.

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Source: Novosibirsk State University –

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Comet 3I/ATLAS is the third interstellar object discovered by the American ATLAS automated telescope system. Unlike the previous interstellar objects—the asteroid 1I/Oumuamua and comet 2I/Borisov—which remained very faint throughout their entire period of visibility, comet 3I/ATLAS is comparatively bright, reaching a maximum brightness of approximately 10th magnitude, making it observable even with amateur telescopes, at least with relatively large ones.

The main feature of this comet is the pronounced hyperbolicity of its orbit, which makes it an interstellar object. The shape of an object's orbit around its center of mass is determined by its eccentricity. If the eccentricity is less than one, the orbit is closed; it can be closer to circular when the eccentricity is near zero, or, conversely, an elongated ellipse if the eccentricity approaches one. The orbits of objects gravitationally "bound" to the Sun are either elliptical (like planets, asteroids, and periodic comets) or near-parabolic. The latter case refers to non-periodic or long-period comets from the hypothetical Oort cloud, which is believed to be a cluster of cometary nuclei surrounding the Solar System at a distance of approximately 100,000 AU. The orbits of comets that fly from this cloud into the solar system have an eccentricity value of about 1 (i.e. their orbit is very close in shape to a parabola), which means that, while in the Oort cloud, they have a near-zero velocity relative to the Sun and generally move around the center of our Galaxy together with the Sun.

Comet 3I/ATLAS has an eccentricity of 6.14. This is the highest eccentricity ever discovered for a celestial body. It indicates that the comet was already moving at a fairly high velocity when it passed through the Oort Cloud, which increased further as it moved further into the inner Solar System. This suggests that this comet does not originate from the Oort Cloud, which would classify it as a Solar System object, but likely originates from another solar system. It encountered the Solar System by chance on its long journey through our Galaxy. It will pass through it and, unlike solar comets, will not remain in the Oort Cloud, but will continue on its way.

The exact origin of this comet is currently impossible to determine, including the star from which it came, as its age is estimated at several billion years, during which time it has traveled a very long distance in orbit around the center of the Galaxy. However, it was likely ejected from a stellar system as a result of gravitational disturbances during its approach to a large planet in that system or to the star itself.

Otherwise, aside from the hyperbolic orbit, 3I/ATLAS is a fairly ordinary comet. Some peculiarities in its composition have been identified, such as the relatively large amount of carbon dioxide it emits, and spectral analysis has revealed the presence of atomic nickel in the absence of iron, although these two elements typically occur in pairs in cosmic objects. However, nothing particularly out of the ordinary has been observed for this comet, either in its composition or appearance. Even some comets in the Solar System are far more unusual in this regard. However, comet 3I/ATLAS still deserves considerable attention from scientists, as its observation and study presents a good opportunity to study the composition and dynamics of an object that has arrived from very distant lands.

Material prepared by: Mikhail Maslov, engineer at the Vega Observatory of Novosibirsk State University

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The template effect of a small amount of additives of compounds with a similar structure (various saturated carboxylic acids and alkanes) on the process of self-assembly and crystallization of the channel trigonal structure of carbamazepine using a mechanochemical approach, crystallization in solution and melt was demonstrated by a first-year master's student in the Chemistry program and the training profile "Methodological support for physicochemical studies of condensed phases" Faculty of Natural Sciences of Novosibirsk State University (NSU Natural Sciences Department) Daria Zheltikova, under the supervision of Evgeny Losev, a research fellow at the Boreskov Institute of Catalysis SB RAS, senior lecturer in the Department of Solid State Chemistry at the NSU Natural Sciences Department, and candidate of chemical sciences. The key focus of her research was studying the phenomenon of polymorphism and the conditions for the formation of new solid forms of medicinal compounds, particularly carbamazepine, as well as methods for their controlled production. The effect of the compounds examined in the study on carbamazepine had never been previously studied.

Polymorphism is the ability of the same substance to exist in different crystal structures (polymorphic modifications). These structures differ in the arrangement of atoms (or molecules) and may have different physicochemical properties (e.g., solubility, melting points).

"The pharmaceutical industry is focused on studying the conditions for the formation of new crystalline forms of medicinal compounds, investigating their structures and physicochemical properties, and their interconversions. These processes address such important issues as the reproducibility of obtaining the desired substances, establishing the stability of drugs prone to polymorphism, and improving fundamentally important pharmaceutical characteristics: dissolution rate, bioavailability, storage stability, hygroscopicity, and other properties. To screen new crystalline forms, we primarily used a mechanochemical approach. This is a common method for screening the conditions for obtaining new solid forms of molecular compounds. Thanks to the wide range of parameters available for mechanochemical experiments, researchers can comprehensively study a selected system and draw conclusions about the putative mechanism of the processes occurring during the experiment. In recent years, mechanochemical reactions and transformations initiated by mechanical stress have been actively studied using various in situ methods using synchrotron radiation," explained Daria Zheltikova.

The young researcher's object of study was carbamazepine, a drug with antiepileptic and anticonvulsant properties, widely used in the treatment of nervous system disorders. According to the biopharmaceutical classification system, carbamazepine belongs to class II drugs, meaning it has low solubility in aqueous solutions and high intestinal permeability. Currently, five polymorphic modifications of this drug are known, which is quite unique and places carbamazepine in the class of highly polymorphic molecular compounds. Each polymorphic modification has a different crystal structure and molecular packing. In 1987, polymorphic modification II of carbamazepine, which has a trigonal space symmetry group, was first isolated and characterized. A distinctive feature of the crystalline structure of this form is the presence of extended tubular voids (channels) formed by the CH groups of the benzene fragments of the carbamazepine molecules. This substance is a good model object for studying the influence of experimental parameters on the selective production of specific polymorphic modifications and crystalline forms. The knowledge and patterns gained can be further transferred to other systems prone to polymorphism.

— The trigonal structure of carbamazepine, since its elucidation in 1987 and for several decades, was considered a polymorph. However, using a combination of physicochemical methods, it was recently established that the trigonal structure, which should have consisted solely of carbamazepine molecules, is a host-guest inclusion compound, where the carbamazepine molecules form a channel-type framework with solvent molecules embedded within the voids. The inclusion molecules will vary depending on the experimental conditions. It is the inclusion molecules that stabilize the trigonal crystal structure and enable its formation. Currently known inclusion compounds of carbamazepine are characterized by the presence of a small number of guest molecules in a highly disordered state, making their study quite labor-intensive. Various inclusion bodies of the trigonal form of carbamazepine can be classified as clathrates—compounds in which molecules of one substance (the "guest") are trapped within the crystal lattice of another substance (the "host"). The host molecules form a framework, while the guest molecules are located within it and held in place by weak intermolecular interactions, explained Daria Zheltikova.

Research into carbamazepine polymorphism and its formation of various crystalline forms began quite some time ago and was conducted as part of several projects implemented over the years with support from the Russian Foundation for Basic Research, the Russian Science Foundation, and the Priority-2030 program. The results were published in peer-reviewed international journals. This study continues work conducted earlier in the previous stages of the NSU Physics Faculty's youth competition "X-ray, Synchrotron, and Neutron Methods of Interdisciplinary Research," with support from the Priority-2030 program.

The aim of this study is to optimize the conditions for obtaining single crystals of carbamazepine clathrates with various guest molecules using various crystallization techniques and their analysis using a set of physicochemical methods.

Such exploratory work, despite its significant fundamental component, often leads to the establishment of the existence of new, previously unknown polymorphic modifications of medicinal compounds, which has direct practical significance, and also establishes correlations between the parameters and results of crystallization experiments, which can be useful in the study of systems similar in structure and properties.

One of the new scientific results obtained in this study is the demonstration of the template effect of small amounts of structurally similar compounds on the self-assembly and crystallization of the channel trigonal structure of carbamazepine using various methods—a mechanochemical approach, solution crystallization, and melt crystallization. Saturated carboxylic acids and alkanes—compounds containing a long, unbranched carbon chain—were used as structurally similar compounds. The template effect observed in the preparation of carbamazepine clathrates is based on the ability of the template (in this case, various carboxylic acids and alkanes) to organize the reactant (carbamazepine) molecules around itself, enabling the formation of a seed cluster, which serves as a precursor for the targeted formation of the final crystalline structure. All newly obtained compounds are clathrates of the trigonal form of carbamazepine, that is, the structure of carbamazepine contains inclusion molecules of the corresponding acids and alkanes.

— Currently, we are focused on optimizing methods for obtaining single crystals of various carbamazepine clathrates for further study and investigation of their stability at elevated temperatures. We obtained nine clathrates with saturated carboxylic acids and alkanes under various conditions. Our study examined six carboxylic acids and three alkanes. We have focused on only a few compounds from each group, as obtaining single-crystal samples for each individual compound is quite labor-intensive due to differences in formation conditions and certain experimental details. The compounds obtained have an acicular morphology—in simpler terms, they are thin, needle-like crystals. In some cases, the needle size is so small that it precludes single-crystal X-ray diffraction analysis using laboratory diffractometers. For this reason, not all of them have had their crystal structures determined yet. We characterized compounds whose crystal structures had not been obtained using Raman and NMR spectroscopy, said Daria Zheltikova.

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Source: Novosibirsk State University –

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The Faculty of Natural Sciences table tennis team brought the second bronze medal to NSU, and the team Faculty of Geology and Geophysicsand took 6th place in tug of war.

The winners were:

Maxim Bagin, Dmitry Filippenko, and Kristina Novgorodtseva

The following played for the team of geologists:

Artem Peterson, Alexander Sokolsky, Kirill Melnikov, Sergey Redko, Ilya Ostanin, Vyacheslav Ustyuzhanin

KafFV trainers-teachers Alexey Sokorev and Alexander Sozinov.

Congratulations to the FEN students on their prize-winning place, thank you all for participating, and wish you success in your studies and athletics!

We invite table tennis enthusiasts to the NSU Championship, which will be part of the Spartakiad of Faculties and Institutes, which will take place on November 19 and 26 at the NSU Sports Complex (SCC).

More information –https://vk.com/sport_nsu

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From October 28 to 31, the international youth project laboratory BRICS Project Lab – Minsk was held in Minsk. It was organized by the Representative Office of Rossotrudnichestvo in the Republic of Belarus jointly with the NSO MGIMO and the Belarusian State University with the support of the A.M. Gorchakov Public Diplomacy Fund.

The laboratory brought together undergraduate and graduate students, and young scientists from Russia, Belarus, and the BRICS countries to develop practical projects aimed at advancing international cooperation. From over a thousand applications, the organizers selected approximately one hundred participants. The competition's difficulty is comparable to that of applying for a scholarship to MGIMO.

Mikhail Krikunov, a master's student at the Faculty of Information Technology and an assistant at the Department of Informatics Systems at NSU, was one of the Russian representatives among the finalists.

"I submitted my application in September, went through an interview, and received confirmation of my participation in early October. The lab isn't just a forum, but a platform where young researchers work on real projects at the request of government and international organizations," says Mikhail.

He and his teammates participated in the track "Current State of the Pharmaceutical, Medical Devices, and IT Markets in the Republic of Belarus," which was developed in partnership with the Trade Mission of the Russian Federation in Belarus. The work began online in October: the team analyzed the market, studied product certification and registration processes, and systematized data on preferences and growth opportunities in the pharmaceutical and IT sectors.

"The in-person stage in Minsk was a logical continuation of the project. We participated in consultations with experts, met with representatives of the Trade Mission and lawyers to clarify details and finalize the study. Ultimately, we prepared over a hundred pages of analytical materials, which we submitted to Yuri Vasilyevich Zolotarev, the Russian Trade Representative in Belarus. He highly praised our work and noted that the results would be forwarded to the Russian Ministry of Industry and Trade," Mikhail shares.

According to the participant, the eventful program included lectures, meetings, discussion platforms, and a cultural component: students visited the Russian Embassy in Belarus, the Court of the Eurasian Economic Union, the Minsk City Technopark, and saw the city's landmarks.

"I'm happy to have seen the heroic city of Minsk, to have contributed to strengthening trade relations between Russia and Belarus, to have met a huge number of smart and kind people, professionals in their fields, ready to move forward no matter what, and to have made friends in my teammates. I hope this project lab will become a starting point for our team's future work on other projects," Mikhail concludes.

In the near future, the team plans to continue the research in the form of a scientific paper and publish its results.

The material was prepared by: Yulia Dankova, NSU press service

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On November 8, the "Voices of Siberia" concert took place in the auditorium building of Novosibirsk State University. It was a large-scale choral event that brought together 11 groups and ensembles from six Siberian cities. The concert was part of the annual "Music Unites" music festival, of which NSU was the general partner in Novosibirsk this year.

The festival featured ensembles from Omsk, Tomsk, Krasnoyarsk, Kemerovo, Gorno-Altaysk, and Novosibirsk—a total of more than 300 performers. Among the participants were the NSU Academic Choir, the Blagovest Youth Choir, the Y.A. Braginsky Academic Choir of the Novosibirsk State Technical University, the Carpe Diem Choir (Kemerovo), the D. Hvorostovsky Saratov State Institute of Arts Choir (Krasnoyarsk), the Tomsk State University Choir (Tomsk), the E. Denisov Tomsk College of Music Mixed Choir, the SFU Academic Choir, the Bel Canto Youth Choir (Omsk), the NSPU MO Mixed Choir, and the Viva Voce Choir.

Each group presented its main work, and in the finale, all participants performed together for the first time the closing number of the festival oratorio "Faces of Siberia"—a work by Novosibirsk composer and member of the Union of Composers of Russia, Oksana Serebrova, which has become a symbol of unity and community among all Siberian cities participating in the project.

The project's director, NSU graduate Anton Niyazov, addressed the audience and participants with a welcoming speech:

"Today, November 8th, we're opening the gala event "Music Unites" in Novosibirsk. The festival is all about bringing together not only amateur and professional musicians, but also programs of diverse natures and genres, as well as different venues. Today's venue is, in a sense, remarkable: it's the enormous new auditorium building at NSU, which is likely the first time it's hosting such a large-scale concert. It's crucial that our program be uninterrupted and without words between pieces, so as not to disturb the atmosphere of collective meditation."

Olga Yakovleva, Vice-Rector for Youth Policy and Educational Work at NSU and PhD in Philology, noted the high level of performance by the NSU University Choir and the importance of such events for the university community:

"I am pleased that our choir performs at a high level, and that, compared to professional choirs at other universities with music departments, our university, where musical activities are conducted only extracurricularly, looks respectable."

Such events are important for our academic choir: the students often participate in competitions and festivals, but sometimes it's important to host events on our own site. NSU traditionally brings the city together for scientific and educational events, and now, thanks to our new infrastructure, we can host cultural and creative events and invite Akademgorodok residents and visitors.

Elena Krasilova, Head of the Department of Youth Policy and Educational Work at NSU, emphasized that the annual festival is developing and expanding its geographic reach:

"The festival is constantly evolving—it's been growing and developing for several years now. It began as a project of Novosibirsk choral groups, but has now expanded beyond the region. It's gratifying that leading choirs from Siberian universities are participating, including Tomsk State University and the Siberian Federal University."

Members of the NSU Academic Choir—Nelly Khrapova, Nikita Afimchenko, and Lilia Minushkina—shared their impressions and highlights of the performance.

Nelly: "This concert is different from others because we were placed in unusual circumstances—we stood opposite each other and heard every number from the other bands. Usually we're backstage, but here we were face to face—it was an unusual and joyful experience."

Nikita: "What was also unusual was that everything happened so quickly—we had little time to prepare. But it seems like everything worked out."

Liliya: "It's also worth noting that this was our first time performing in the auditorium building. The acoustics here are exceptional—the sound 'flies,' it feels like you're in a church. The a cappella pieces sounded simply wonderful today, in my opinion."

Speaking about working with other groups, the choir members emphasized that the collaboration required attentiveness and flexibility:

Nelly: "Adapting is always difficult; every conductor has their own approach and vision. But the oratorio we'll be performing tomorrow has one common conductor, who helps bring everything into a unified sound. When we begin to understand each other and speak the same language, the work flows easily."

Liliya Minushkina shared her favorite moments of the program: "My favorite moments are the a cappella numbers. They're a real challenge for any choir. You have to be extremely attentive and listen to each other."

Nikita Afimchenko noted the scale of the project: "Events like this don't happen often, and they require serious preparation. We're really looking forward to tomorrow's concert, where many groups will unite and work as a single entity. It's challenging, but very inspiring."

The "Voices of Siberia" concert was more than just a festival performance, but also a gathering of like-minded individuals for whom music is the language of mutual understanding and collaboration. Siberian choirs united at NSU to prove that creativity truly can unite cities, universities, and generations.

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The athletes ran the 4 x 400m relay, and the junior team of the Faculty of Mechanics and Mathematics took 3rd place!

The team included: Alexey Chviruk, Gleb Mamonov, Lev Zhukov, Mark Makhalov

Among the girls, our university was represented by athletes from the Faculty of Natural Sciences, who achieved a respectable fourth place result.

Team members: Violetta Lobes, Ulyana Makogon, Vitalina Kiseleva, Elizaveta Lisitsyna

We congratulate both our teams and coach Anton Mamekov on a successful debut at the Festival, and wish them success in the upcoming Higher Education Institutions Cup in Athletics!

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Novosibirsk, November 10, 2025: Analytical Center "Expert" published the results of the eighth wave of the study of universities leading in training technology entrepreneurs. Novosibirsk State University was the only university from the region to make it into the top ten. Leading Moscow universities also made the top ten: HSE, MIPT, Lomonosov Moscow State University, Bauman Moscow State Technical University, and RANEPA.

The ranking is based on a database of approximately 3,000 startups and 3,500 of their founders. The 2025 ranking assessed universities using a scoring scale that took into account graduates' performance in creating both local and international startups. In 2025, the database of local startups (headquartered in Russia) founded since 2015 reached 859 companies. These projects were founded by 1,103 entrepreneurs representing 280 Russian universities. The database of international startups was compiled using Crunchbase and includes 2,078 companies and 2,357 entrepreneurs.

"NSU's development strategy envisages a transition to a scientific and technological university model by 2036, where technology will be the core business alongside education and research. With this in mind, we are paying special attention to developing student technological entrepreneurship. We are building an effective support ecosystem at the university—from the inception of an idea to its development into a mature business. NSU has a Startup Studio, the .catalyst acceleration program, a campus course on technological entrepreneurship, and a practice of defending final theses in a startup-as-a-diploma format. This year, we were among the winners of a federal competition for the development of university startup studios, which will expand our capabilities in this area," commented NSU Rector and RAS Academician Mikhail Fedoruk.

The infrastructure created at NSU to foster technological entrepreneurship has its own unique characteristics. The university is located in Akademgorodok, a district of the city near more than 30 institutes, as well as one of the country's leading technology parks, home to high-tech companies. NSU is primarily focused on training researchers, so most student startups are based on scientific research, and students have the opportunity to develop these research projects into products. The unique ecosystem of the Novosibirsk Scientific Center allows for a more rapid transition from concept to market launch.

"This environment gives students a real opportunity to launch their own technology products and services while still studying, gain practical experience in development, interacting with clients, and become familiar with the fundamentals of business management—from accounting to legal aspects. Over the past three and a half years, more than 1,130 people, including students not only from NSU but also from other Novosibirsk universities, have completed training in our .catalyst acceleration program. 67 residents of the NSU Startup Studio won the Student Startup competition and received grants of 1 million rubles each to implement their business projects. Furthermore, more than 30 teams have become residents of the Akadempark business incubator," said Alexey Starostin, Director of the NSU Center for Entrepreneurial Initiatives.

Thus, having gained experience developing their own project while still studying, students become specialists who not only possess basic professional knowledge but also understand the technology stack, legal issues, team selection and management, and development promotion. Such creators are now in demand in any field.

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Gaysaa Hamud, a postgraduate student at NSU and a research assistant at the Laboratory of Functional Diagnostics of Low-Dimensional Structures for Nanoelectronics at the Analytical and Technological Research Center "High Technologies and Nanostructured Materials" of the NSU Faculty of Physics, was awarded a diploma for the best oral presentation, "Study of the Conductivity Type of Films of Non-Silicate Germano-Silicate Glasses," at the 16th Valiev International Conference "Micro- and Nanoelectronics – 2025," held from October 6 to 10 in Yaroslavl. The young researcher, who is also a research engineer at the A.V. Rzhanov Institute of Semiconductor Physics of the Siberian Branch of the Russian Academy of Sciences, presented her paper in the "Materials for Optoelectronic Devices" section. For Gaysaa Hamoud, this presentation was her first oral presentation at an adult conference; previously, she had successfully participated only in student and youth conferences.

“We were the first to study the type of conductivity in germanosilicate glasses. This is the novelty of my research. This knowledge is important for understanding the conductivity mechanism in these nonideal dielectrics (in which so-called leakage currents are significant). In any materials – both semiconductors and dielectrics – there is a different type of conductivity: either electronic type, or hole, or bipolar. To improve the performance of devices that use a particular dielectric, it is important to know what type of conductivity is characteristic of it. The object of study in my research was germanosilicate glasses, which can be used for the manufacture of photosensitive MIS structures (metal-insulator-semiconductor structures). Previously, we obtained in them the effect of very good photosensitivity, which is important in their application for technical vision, light-sensitive sensors and memristors, and decided to explain the mechanism of its occurrence. The fact is that germanosilicate glasses are not an ideal dielectric; they conduct electric current. We take advantage of the non-ideal nature of germanosilicate glass (leakage currents) to achieve the beneficial properties of MIS structures based on them. For example, in MIS structures such dielectrics suppress the dark current, but do not greatly weaken the photocurrent. This leads to an improvement in their photosensitivity. And, perhaps, devices based on such dielectrics will replace more expensive industrial photosensitive devices. It is possible that such new materials and devices will be inexpensive, small in size, and consume little energy. However, in order to improve photosensitivity, it is necessary to establish the mechanism of photocurrent generation and the type of conductivity, said Gaisaa Hamoud.

The young researcher began studying the properties of germanosilicate glasses at the very beginning of her graduate studies about three years ago, under the supervision of Vladimir Volodin, a leading researcher at the Laboratory of Functional Diagnostics of Low-Dimensional Structures for Nanoelectronics, Department of the Analytical and Thermal Analysis Center, Faculty of Physics, NSU, a leading researcher at the A.V. Rzhanov Institute of Semiconductor Physics, Siberian Branch of the Russian Academy of Sciences, a professor in the Department of General Physics, and Doctor of Physical and Mathematical Sciences. It took about a year to study the conductivity type in these structures.

Routine semiconductor methods such as the Hall effect, thermal probes, or dielectric charge relaxation are not applicable in this case for a number of reasons. Therefore, the scientists used the classical nonequilibrium depletion method by injecting minority charge carriers from the substrate into the dielectric in a metal-insulator semiconductor (MIS) structure. This method studies the current-voltage (I-V) and capacitance-voltage (C-V) characteristics of samples in the dark and under illumination. The study covered four sample compositions grown on different silicon substrates—n-type with n-type conductivity and p-type with p-type conductivity. A total of eight samples were examined. The authors varied the ratio of germanium oxide to silicon oxide in the films. They noted that silicon oxide has been well studied to date, while germanium oxide remains poorly understood, and a mixture of the two has not been studied at all.

Using the nonequilibrium depletion method with minority carrier injection, we can inject carriers of different charges—both negative and positive—into a dielectric. These are either electrons or holes. We can then observe whether they pass through our dielectric. The essence of this method lies in the controllability of the injection process. It is considered a classic, and researchers have been using it for over 40 years. One of the method's authors is Professor Vladimir Alekseevich Gritsenko of the Institute of Semiconductor Physics SB RAS. Using this method, we discovered that germanosilicate glasses have bipolar conductivity, which can involve both electrons and holes. We then refined this method by analyzing photo-EMF (the electromotive force that occurs in semiconductors when exposed to light). We noticed that no EMF occurs in a dark MIS structure without applying an external voltage. However, when exposed to light, electron-hole pairs are generated in the silicon substrate, which are then separated by the built-in field, generating a photo-EMF. Solar cells operate on the same principle: we expose p-n junction silicon to light, and electron-hole pairs are generated in the sample, which are separated by the field built into the p-n junction. If we short-circuit a light-illuminated MIS structure to a payload, the light energy is converted into electrical energy, explained Vladimir Volodin.

The MIS structures studied, based on germanosilicate glass films, can also be used as solar cells, but this was not the goal of the study, so the scientists did not optimize the relevant parameters. For this reason, their efficiency as solar cells does not exceed 0.01%, while 10% is required. Therefore, using them for this purpose is impractical, but that was not the researchers' intended purpose.

MIS structures based on germanosilicate films were studied in the dark and with illumination. Subsequently, by analyzing the nonequilibrium depletion during minority carrier injection from the substrates, the scientists concluded that germanosilicate glass films of various compositions exhibit bipolar conductivity. These findings were confirmed by analyzing the sign of the photo-EMF generated in the MIS structures under illumination.

It was important to confirm the results obtained from studying the current-voltage and capacitance-voltage characteristics. For this, we used an approach based on photo-EMF analysis. In our structures, even without applying an external voltage, but only under the influence of light, we observed depletion with band bending of approximately 0.5 volts in both substrate types. In our opinion, photo-EMF should not occur in the case of purely hole conductivity in an n-type silicon substrate, because holes do not accumulate in them but pass through the dielectric. However, if the resulting voltage reached the flat-band voltage (0.5 volts), this would indicate the presence of only n-type conductivity. However, when photo-EMF occurs that does not reach the flat-band voltage, both n-type and hole conductivity are present. We found that this effect is observed in all our samples when the photo-EMF is lower than the flat-band voltages for n-type and p-type silicon. Simply put, if the photo-EMF is zero, one type of conductivity is present, depending on the substrate; if the photo-EMF reaches its maximum values, another type is present. At intermediate photo-EMF values, both types of conductivity are present simultaneously, said Gaysaa Hamoud.

This fact further confirms that germanosilicate glass exhibits bipolar conductivity. In the future, the scientists intend to focus on improving the photosensitivity of the MIS structures they are studying. The results of this research will be applied in the creation of photodetectors based on MIS structures without a p-n junction. Currently, commercially available photosensitive devices operate using a p-n junction, but photosensitive devices without this junction will be less expensive and easier to manufacture.

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Translation. Region: Russian Federation –

Source: Novosibirsk State University –

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The Novosibirsk Region Higher Education Institutions' Faculties Festival, dedicated to the 75th anniversary of NSTU-NETI, is being held for the first time this year as part of the "University League of Regions" project.

Its program included 10 sports: table tennis, futsal, chess, tug-of-war, athletics, swimming, men's and women's volleyball, and 3×3 basketball.

Our chess players won their first medals at NSU – the team from the Faculty of Mechanics and Mathematics took 2nd place!

The honor of the university was defended by:

Konstantin Bondar, Lev Zhukov, Anton Mamontov, and Alexander Vorotnikov

Congratulations to our chess players and their coach, Alexey Egitov, on winning silver medals at the festival!

Please note: This information is raw content obtained directly from the source. It represents an accurate account of the source's assertions and does not necessarily reflect the position of MIL-OSI or its clients.