Search by tag «Nanoparticles» 47 results
Chemists at ITMO University have designed an AI-based platform that identifies nanoparticles with selective cytotoxicity to cancer cells. According to the corresponding article in Small, the system should be expected to optimize particle synthesis and reduce the side effects of cancer treatment.
Physicists from ITMO’s International Research and Educational Center for Physics of Nanostructures have proposed a method of generating plasmonic chiral nanoparticles with the help of “twisted” laser radiation. The obtained structures can be used in biosensors and polarized photodetectors, detect impurities in gasses and liquids, as well as purify medications.
ITMO Scientists Suggest New Synthesis Method For Nanoparticles Used in Cancer Treatment and Diagnostics
Researchers from ITMO’s ChemBio Cluster have suggested a new way of synthesizing magnetic nanoparticles for cancer treatment and diagnostics. Thanks to machine learning at the core of the new approach, the scientists can quickly select the properties of nanoparticles for efficient MRI diagnostics and hyperthermia treatment. With the new method, the synthesis of a single nanoparticle takes just a few seconds – compared to the hours required in the conventional experimental approach. The method was described in a paper published in Small.
Cancer is the second most common death cause in the world, which in 2020 took the lives of nearly 10 million people – every sixth death, according to WHO. Globally, researchers are developing new, more efficient treatments for oncological diseases. Scientists from ITMO also contribute to these efforts: recently, they have come up with a universally applicable magnetic particle from zinc ferrite and manganese ferrite that can facilitate both cancer diagnostics and treatment. The new method increases the efficiency of radiotherapy by 40%, and during magnetic hyperthermia it can heat cancer cells in several seconds, while also securing less exposure for the healthy cells. This study was published in Journal of Materials Chemistry B.
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.
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.
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.
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!
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.
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.