Search by tag «Nanoparticles» 53 results

• ITMO Researchers Developing New Cancer Treatment Using Gold Nanoparticles and Infrared Lasers

  In recent years, oncological diseases have become one of the most wide-spread causes of death in developed countries – and despite the abundant new diagnostics and treatment methods, fighting cancer is still a challenge. Nearly all known treatments have significant side effects, while some of them are even helpless against more persistent cancer cells. One solution to this problem is photothermal therapy, on its own or in combination with other treatments. Researchers from ITMO University have suggested a new method to treat melanoma more effectively and safely using gold nanoparticles. Read on to learn more about the new method.

  03.11.2022

• Bright Ideas: ITMO Researchers’ Dynamic Nanostructure Achieves 35x Light Amplification

  The staff of ITMO University’s Faculty of Physics have developed a dynamic nanostructure that changes its optical properties in response to external stimuli. At its core is a polymer that expands and contracts based on its temperature. The researchers have shown that nanostructures containing silicon nanoparticles can amplify light seven-fold – and the number blows up to 35 when the material is combined with gold. What’s more, the polymer can change its form an unlimited amount of times. Its potential uses include the development of automated heat sensors and various other smart devices.

  13.10.2022

• Researchers Present New Synthesis Method for Optically Active Carbon Nanodots

  One of the most remarkable carbon-based nanomaterials are luminescent carbon dots, the physical and chemical properties of which are easy to control. Thanks to their low toxicity, these particles are said to possess great potential in the fields of biology and medicine. Carbon dots are made from organic substances; if their precursor contains a chiral center, the resulting nanoparticles will be chiral, too. These particles have various application prospects, including in medical diagnostics. Researchers from ITMO University and St. Petersburg State University, in collaboration with their international colleagues, have developed a new way to synthesize such nanoparticles with stable optical properties.

  16.05.2022

• ITMO’s Monday Science Roundup #2

  Advanced materials, new Master’s programs, and exciting job prospects for researchers: with another two weeks behind us, it’s time for another digest of the latest science news from ITMO University. Let’s dig in!

  28.03.2022

• Finding Nanoparticles: ITMO Scientists Propose New Method for Discovering Nanomaterials With Desired Properties

  Researchers from ITMO’s ChemBio Cluster have devised an algorithm that can automatically detect the properties of nanoparticles, including their size, shape, and surface structure, based on their images and even sketches and find similar particles in its database. The novel system also works the other way around by informing users how to produce substances with the desired properties. Read on to learn how AI helps accomplish the challenges of materials science and what the scientists want to achieve with their research.

  17.03.2022

• Researchers Design New Synthesis Method for Carbon Nanodots With Potential Applications in Biomedicine

  Scientists from ITMO University, St. Petersburg State University, TU Dresden, Ioffe Institute, and City University of Hong Kong have devised water-soluble carbon nanodots that demonstrate efficient luminescence in the long wavelength spectral region. The researchers also managed to achieve the highest possible photoluminescence quantum yield reported so far for carbon nanodots emitting in the near-infrared spectral region. The developed nanoparticles can be used as non-toxic fluorescent probes for bioimaging. Read on to learn more about the study and its findings.

  11.03.2022

• ITMO Researchers Develop First-Ever Online Platform For Nanozyme Modeling

  Nanozymes are artificial enzymes made up of various nanoparticles. In contrast to natural enzymes, nanozymes demonstrate all the same properties while being easier to produce and work with. However, the hardest step in developing nanozyme-based drugs and diagnostic systems is modeling the necessary properties of their particles before synthesis. Researchers from ITMO’s SCAMT Institute have solved this task by developing DiZyme, the first platform in the world that predicts the catalytic activity of nanozymes.  

  21.01.2022

• ITMO Researchers Develop New Method of Magnetite Nanoparticle Synthesis

  Scientists from SCAMT Institute have devised a way to produce nanoparticles of iron oxides (magnetite, hematite, maghemite) using water-alcohol synthesis, as well as modify their color, size, and functional properties. The synthesized substances are used in production of memristor devices. In the future, magnetite nanoparticles could potentially be used in the treatment of neurocognitive diseases.

  14.01.2022

• ITMO Researchers Develop Special Ink For Anti-Counterfeiting Protection

  Scientists from ITMO University, Bauman Moscow State Technical University, and the University of Toronto have developed a gel ink that emits light when exposed to monochromatic radiation of various wavelengths. This makes it possible to create complex images when applying tags to products – the scientists believe that the level of anti-counterfeiting protection offered by their invention is much higher than that of the existing counterparts. The research received support from a Russian Science Foundation and the Ministry of Science and Higher Education grant.

  08.10.2021

• ITMO Scientists Discover Nonlinear Circular Dichroism in Mie-Resonant Nanoparticle Dimers

  The discovered effect may potentially be used to create special sensors for chiral molecules. These molecules are particularly useful to the pharmaceutical industry, but have a unique structure that makes them difficult to detect. The related article was published in Nano Letters.

  07.07.2021