B.I.Stepanov Institute of Physics of the National Academy of Sciences of Belarus offers consumers plasmonic nanostructures under a manufacturing agreement.

B.I.Stepanov Institute of Physics of the National Academy of Sciences of Belarus developed methods for the synthesis of gold and silver nanoparticles of various morphologies in aqueous and non-aqueous solutions, including core-shell nanoparticles, as well as films based on them. Metal nanoparticles can act as nanoantennas that enhance an external electromagnetic field and influence the emissive properties of nearby molecules or quantum dots, which opens up wide opportunities for controlling the optical properties of materials by choosing the size, shape and spatial organization of metal nanoparticles in contact with them.

Nanoparticles and metal films produced at the Institute are successfully used to implement plasmonic enhancing Raman scattering of light. This effect is used to detect ultra-small amounts of a substance, including determining the composition of paint layers in works of art and detecting toxic substances in water. In particular, the Institute’s staff proposed a new approach for determining the concentration of bromate anions in water, which is 1-2 orders of magnitude better in sensitivity compared to other methods and does not require the use of expensive equipment. The effectiveness of colloidal silver films as effective sensor substrates used to enhance the Raman signal when monitoring the reaction between bromate anions and dye molecules has been experimentally demonstrated. The developed method can become the basis for inexpensive sensors of bromate anions, which is especially important for analyzing the composition of drinking water obtained by desalination.

Metal nanoparticles can be used to improve the characteristics of light-emitting structures, such as LEDs or sensors based on luminescent materials. In particular, a laboratory technique has been developed for producing nanotextured metallized substrates to increase the sensitivity of fluorescent detection of labeled human antibodies. A distinctive feature of the technique is the use of a functionalized polymer surface to create a dense packing of metal nanoparticles on the surface. The technique has been tested for antibodies to alpha-fetoprotein and prostate-specific antigen. The results are important for the development of compact sensors that make it possible to detect tumor markers in human blood and other biofluids for the purpose of early diagnosis of cancer.

Dependence of the fluorescence intensity on the number of antibodies to the prostate-specific antigen without silver nanoparticles and with nanoparticles:


Application areas:
* agricultural industry;
* textile industry;
* optoelectronics;
* building materials;
* cosmetology;
* medicine;
* catalysis, etc.

B.I. Stepanov Institute of Physics offers partners plasmonic nanostructures under a manufacturing agreement.

Catalogue of Developments & Services of «B.I. Stepanov Institute of Physics» 2022, pp.42-43.

Import substitution of plasmonic nanostructures from companies:
«nanoComposix» (USA);
«Nanopartz Inc.» (USA).

The B.I. Stepanov Institute of Physics is the leading interdisciplinary research institution in the field of physics in the Republic of Belarus. The directions of scientific research and development of the Institute are currently:
* Laser physics, development and creation of laser systems and technologies for medicine, ecology, industry, metrology and information protection;
* Physical and nonlinear optics, the disclosure and use of the patterns of propagation of high-power laser radiation in various media;
* Optical spectroscopy, development and application of methods and instruments for studying the properties and structure of various materials, including biotissues;
* Nanooptics and Nanomaterials;
* Quantum optics, investigation of quantum properties of electromagnetic radiation in computer science and cryptography;
* Investigation of the structure and properties of atomic-molecular structures and the creation of new optical materials, systems, instruments and technologies on this base;
* Plasma physics and plasma technologies: investigation of the plasma interaction with fields and matter; development and application of methods for plasma diagnostics, development of technological applications of gas-discharge and laser plasma
* Micro- and optoelectronics: LED technology, solar cells, microwave technology, microelectromechanical and sensor systems and devices;
* Physics of Fundamental Interactions and Nuclear Reactions - Investigating the Structure of the Microcosm and the Universe.

The B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus has scientific contacts with many countries. At present, more than 50 agreements on scientific and technical cooperation have been signed with organizations from 15 countries.

The Institute develops, manufactures and supplies laser and optical instruments for various purposes, as well as innovative components for laser technology, to many countries of the world (Russia, China, Germany, France, the United States, Saudi Arabia, India, etc.).

Consumers interested in purchasing plasmonic nanostructures under a manufacturing agreement.