A5034344137- Polymer Surface Interaction Studies
- Carbon Nanotubes in Composites
- Advanced Polymer Synthesis and Characterization
- Fullerene Chemistry and Applications
- Dendrimers and Hyperbranched Polymers
- Advanced Cellulose Research Studies
- Electrospun Nanofibers in Biomedical Applications
- Ionic liquids properties and applications
- Surface Modification and Superhydrophobicity
- Gas Sensing Nanomaterials and Sensors
- Thermal Radiation and Cooling Technologies
- Polymer Nanocomposite Synthesis and Irradiation
- Graphene and Nanomaterials Applications
- Polyoxometalates: Synthesis and Applications
- Silicone and Siloxane Chemistry
- Additive Manufacturing and 3D Printing Technologies
- Advanced Materials and Mechanics
- Adhesion, Friction, and Surface Interactions
- Advanced Thermodynamics and Statistical Mechanics
- Phase Equilibria and Thermodynamics
- Protein Interaction Studies and Fluorescence Analysis
- Advanced Battery Materials and Technologies
- Spectroscopy and Quantum Chemical Studies
- Hydrogels: synthesis, properties, applications
- Liquid Crystal Research Advancements
Georgia Institute of Technology
2016-2021
Massachusetts Institute of Technology
2020-2021
Harvard University
2019
AID Atlanta
2018
Taras Shevchenko National University of Kyiv
2009-2016
Saratov State University
2015
Saratov Research Center
2015
The construction of multilength scaled hierarchical nanostructures from diverse natural components is critical in the progress toward all-natural nanocomposites with structural robustness and versatile added functionalities. Here, we report a spontaneous formation peculiar "shish kebab" periodic arrangement silk fibroin domains along straight segments cellulose nanofibers. We suggest that these shish kebab facilitated by preferential organization heterogeneous (β-sheets amorphous silk)...
Abstract Constructing advanced functional nanomaterials with pre‐designed organized morphologies from low‐dimension synthetic and biological components is challenging. Herein, we report an efficient universal amphiphilicity‐driven assembly strategy to construct “hairy” flexible hybrid nanosheets a 1D cellulose nanofibers (CNFs) net conformally wrapped around 2D graphene oxide (GO) monolayers. This interface‐driven bio‐synthetic facilitated by tailoring the surface chemistry of GO sheets,...
We showed large area uniformly aligned chiral photonic bioderived films from a liquid crystal phase formed by cellulose nanocrystal (CNC) suspension placed in thin capillary. As result of the spatial confinement drying process, interface between coexisting isotropic and phases aligns perpendicular to long axis This orientation facilitates fast homogeneous growth pseudolayers parallel interface. Overall, formation organized solids takes hours vs weeks contrast slow heterogeneous process...
We report a novel approach to realizing programmable encapsulation and following release of different compounds in sequential way from multicompartmental microcapsules assembled preformed polymersomes. The polymersomes, or polymeric vesicles, are formed through electrostatic interactions between cationic miktoarm star polymer, namely poly(ethylene oxide)113-(quaternized poly(2-(dimethylamino)ethyl methacrylate)60)4, linear anionic polyelectrolyte, (poly(styrenesulfonate)20), then used as the...
The self-organization of C60 fullerene and cisplatin in aqueous solution was investigated using the computer simulation, dynamic light scattering atomic force microscopy techniques. results evidence complexation between two compounds. genotoxicity С60 fullerene, Cis their complex evaluated vitro with comet assay human resting lymphocytes after blast transformation. cytotoxicity mentioned compounds estimated by Annexin V/PI double staining followed flow cytometry. clearly demonstrate that...
The viability of primary cells (human mesenchymal stem cells, hMSC, as a model for healthy cells) and cancer cell line transformed cervix epithelial HeLa, was studied with the MTT assay after incubation water‐soluble C 60 fullerenes multi‐walled carbon nanotubes filled by iron, respectively. size particles determined dynamic light scattering. morphology incubated nanocarbon scanning electron microscopy. effect Fe‐multi‐walled on is depending concentration applied nanoparticles.
A library of linear and branched amphiphilic poly(ionic liquid)s based on hydrophobic cores peripheral thermally sensitive shells was synthesized studied with regard to their ability form stimuli-responsive, organized assemblies in aqueous media. The responsive derivatives were by neutralizing 32 terminal carboxyl groups functionalized polyester amine-terminated poly(N-isopropylacrylamide)s (PNIPAM) (50% 100%). We observed that these hyperbranched possessed a narrow low critical solution...
The impact of high-frequency (1.2 MHz) ultrasound with a power density 0.33 W cm(-2) on microcapsule nanocomposite shells embedded zinc oxide nanoparticles was investigated by exploring modeling simulations and direct visualization. For the first time sonication effect has been monitored in situ individual microcapsules upon exposure their aqueous suspension to ultrasound. stress distribution shell for high low (20 kHz) frequency at two fixed intensities (0.33 30 cm(-2)) modeled. As shown...
We demonstrated the assembly of amphiphilic hyperbranched protic ionic liquids (HBP-ILs) based on aliphatic polyester (HBP) in aqueous media a wide range pH and conditions. The series new branched polyionic with different terminal groups, HBP-ILs, was synthesized by neutralization carboxylic sulfonic acid groups hypebranched core N-methylimidazole (Im) 1,2,4-1H-triazole (Tr). HBP-IL compounds triazole imidazole counterions form 12–16 nm core–corona micelles at 11.6. found that introduction...
Novel branched azobenzene-modified POSS nanostructures have been prepared.
Abstract Three‐dimensional (3D) printing is an attractive approach to fabricate highly porous extremely lightweight structures for architecture antivibrational packaging. We report 3D processing of model packaging using biodegradable poly(lactic acid) (PLA) as a source material, with acrylonitrile butadiene styrene (ABS) utilized common material traditional benchmarked material. The effects temperature, speed, and layer morphology on the layer‐by‐layer 3D‐printed their mechanical properties...
The effect of C 60 fullerene nanoparticles (30-90 nm) on dynamics force response development to stimulated soleus muscle rat with ischemic pathology, existing in during the first 5 hours and days after 2 ischemia further reperfusion, was investigated using tensometric method.It found that intravenous intramuscular administration С a single dose 1 mg/kg exert different therapeutic effects dependent macroparameters contraction.The drug shown be most optimal for correction velocity contraction...
Heteroarm star-graft block quarterpolymers [PSn(P2VP-b-PAA-g-PNIPAM)n] with pH-sensitive weak polycationic/polyanionic arms and grafted thermoresponsive outer chains are integrated into hydrogen-bonded multilayers morphologies distinct from those in traditional layer-by-layer assemblies. We discovered that block-specific swelling promotes heterogeneous partitioning of hydrophobic hydrophilic reservoirs within the interior swollen multilayers. The molecular architecture amphiphilicity balance...
Abstract Constructing advanced functional nanomaterials with pre‐designed organized morphologies from low‐dimension synthetic and biological components is challenging. Herein, we report an efficient universal amphiphilicity‐driven assembly strategy to construct “hairy” flexible hybrid nanosheets a 1D cellulose nanofibers (CNFs) net conformally wrapped around 2D graphene oxide (GO) monolayers. This interface‐driven bio‐synthetic facilitated by tailoring the surface chemistry of GO sheets,...
We demonstrated that the aggregation behavior of hyperbranched amphiphilic protic poly(ionic liquid)s (HBP-ILs) can be controlled by varying not only number peripheral hydrophobic arms and nature counterions. Additionally, increasing hydrophobicity HBP-ILs led to a condensed monolayer phase at air-water interface. The balance intermolecular interactions mediated presence ionic liquid component in inner shell micelles determines final morphology solution interfaces. widely tuned arms....
We synthesized amphiphilic hyperbranched poly(ionic liquid)s (HBPILs) with asymmetrical peripheral composition consisting of hydrophobic n-octadecylurethane arms and hydrophilic, ionically linked poly(N-isopropylacrylamide) (PNIPAM) macrocations studied low critical solution temperature (LCST)-induced reorganizations at the air-water interface. observed that morphology HBPIL Langmuir monolayers is controlled by surface pressure uniform well-defined disk-like domains formed in a liquid phase....
Microencapsulation techniques represent a critical step in realizing highly controlled transport of functional materials multiphase systems. The first demonstration microcapsules prepared from minimally grafted silk ionomers (silk fibroin modified with cationic/anionic charge groups) are presented here. These tailored biomacromolecules have shown significantly increased biocompatibility over traditional polyelectrolytes and heavily ionomers, but the low grafting density had previously...