Anisotropic and Optically Active Nanostructures Laboratory

• We have created a methodology for creating new chiral luminescent nanomaterials based on titanium dioxide. The method uses one-step dry synthesis.
• A new optical probing method has been proposed. It is based on chiral detection of optically active magnetic CoFe₂O₄ nanoparticles using CdSe/CdS core-shell nanoparticles stabilized by cysteine with different chiralities.
• We have found laws of impact of induced chirality of Mn-doped ZnS quantum dots on sustainability of A549 cells.
• Our researchers have developed a physical model of the dimer form o Ce6 with corresponding computed spectrums of absorption and circular dichroism that are in qualitative harmony with experimental data.
• A method has been proposed for replacing organic shells of colloidal quantum dots made of cadmium selenide of various sizes.
• We have proposed a physical model of formation of hybrid structures based on CdSe/ZnS colloidal quantum dots and tetra(p-trimethylamino) phenylporphine formed in polyethylene terephthalate membranes.
• Our researchers have described laws of photoinduced changes of luminescence of hybrid structures based of titanium dioxide nanoparticles nano and CdSe/ZnS quantum dots.
• Laws of luminescence and photoelectric qualities of hybrid structures based on CdSe/ZnS quantum dots and multi-layer graphene have been found.
• We have found laws of of impact of thickness of shells of quantum dots on optical characteristics, including optical activity.
• We have described laws of optical qualities of lead sulfide quantum dots installed into a matrix of nanoporous silicate glass produced using stationary and non-stationary photoluminescence spectroscopy. 
• We have found laws of enantioselective cellular absorption of chiral semiconductor nanocrystals.
• The Laboratory has developed a model of circular dichroism of CdSe/CdS quantum dots in quantum rods oriented in an external electric field.
• A methodology has been developed for separation of racemic mixture of chiral molecules.
• We have enhance the procedure of synthesis of chiral optically active semiconductor nanocrystals and control of their quality using optical spectroscopy and electron microscopy.
• A method has been developed for producing two-dimensional self-organized superlattices made of semiconductor nanocrystals.
• The quantum mechanical theory of chiral semiconductor nanorolls.
• A theoretical model has been proposed that describes collective excitations of supercrystals based on hydrotrope quantum dots with complex lattices consisting of two or more sublattices.
• The Laboratory has enhance the model of optically active molecules based on quantum dots each of which has dipole moment related to the fundamental interzone transition between states of dimensional quantization of charge carriers.
• We have proposed an approach that allows to amplify enantioselective of optical qualities of nanoparticles. Te approach is based on ordering achiral nanoparticles in chiral supercrystals comparable in size with the length of the light wave.
• We have proposed a theoretical model of amplification of optical activity of semiconductor nanocrystals using ion doping.
• A model has been proposed that describes broadening optical spectrums of absorption arbitrarily oriented nanorods and nanoplates by ensembles under the effect of a static electric field.
• The laboratory has enhanced the theory of optical activity of topologically distorted semiconductor nanocrystals.
• We have developed a theoretical model of interaction between singular light and chiral nanocrystals.
• Our researchers have proposed a method for separating enantiomers of chiral inorganic nanoparticles using enantioselective optical forces.
• We have enhance a model of optical activity of nanocrystals caused by mixing of quantum states.

Education and career development:

• The Laboratory has organized 16 internships for students, postgraduates and young scientists at foreign universities.
• We have conducted the PCNSPA Conference 2016 (Russia).
• 2 doctoral dissertations and 10 candidate dissertations have been defended.
• 5 educational programs and lecture courses have been developed and integrated into the tutoring process. Lecture courses: «Optical processes in nanostructures» (for masters), «Optics of nanoscale supramolecular systems» (for masters), «Nanostructures in electronics, optical information systems, biology, medicine» (for masters). Educational programs: «Physical and technology of nanostructures» (for masters), «Physics of nanostructures» (for bachelors).

Collaborations:

• Trinity College (Ireland): joint research in the domain of solid-state chiral nanostructures, visualization and sensor detection of biological objects using nanoparticles, collaborative publications, exchange of students, postgraduates and young scientists
• University of Exeter (United Kingdom): joint research in developing approaches integration of 2D-materials on CMOS photon chips using methods of synthetic chemistry and microfluidic technologies, joint project «Graphene photonic metamaterials for fast information and communication», collaborative publications, exchange of young students
• Federal Institute for Materials Research and Testing (Germany): joint research in the field of creating a sensor nanoplatforem multiplex cell analysis, collaborative project «Modeling and design of a sensor platform based on triple quantum dots for multiplex cell analysis», collaborative publications, exchange of young scientists
• Swiss Federal Institute of Technology in Zurich (Switzerland): collaborative project «Modeling and design of a sensor platform based on triple quantum dots for multiplex cell analysis»
• Ben Gurion University of the Negev (Israel): joint research of defects in carbon nanostructures, joint publications
• Shanghai Jiao Tong University (China PR): joint research of metamaterials in the form of ultra-thin silicon nanostructures, collaborative publications
• Hosei University (Japan): joint research of optical and structural characteristics of one- and two-dimensional nanocarbon materials, collaborative publications, exchange of young scientists
• University of Campinas (Brazil): joint research of graphene-based hybrid materials and semiconductor quantum dots, collaborative publications, exchange of postgraduates and young scientists
• Moscow Engineering Physics Institute – MEPhI (Russia): collaborative project «Theoretical modeling of energy spectrum of the electron subsystem of the “graphene-quantum dots“ hybrid 2D-structure», joint publications