Vladimir V. Tsukruk

Georgia Institute of Technology

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Srikanth Singamaneni

Washington University in St. Louis

Zhiqun Lin

National University of Singapore

Timothy J. Bunning

Wright-Patterson Air Force Base

Michael E. McConney

Wright-Patterson Air Force Base

Chaoyang Jiang

University of South Dakota

ВШ

В.В. Шилов

International Sakharov Environmental Institute

Sergiy Peleshanko

Georgia Institute of Technology

Rajesh R. Naik

University of Miami

Melburne C. LeMieux

University of Maryland, College Park

Eugenia Kharlampieva

University of Alabama at Birmingham

Cooperative Institutions

Georgia Institute of Technology

222

Iowa State University

Wright-Patterson Air Force Base

AID Atlanta

Cornell University

United States Air Force Research Laboratory

National Academy of Sciences of Ukraine

Institute of Macromolecular Chemistry

Korea Advanced Institute of Science and Technology

Chinese Academy of Sciences

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Nanomechanical Probing of Layered Nanoscale Polymer Films With Atomic Force Microscopy

Journal of materials research/Pratt's guide to venture capital sources (2004)

Alexander Kovalev Hennady P. Shulha Melburne C. LeMieux N. K. Myshkin Vladimir V. Tsukruk

Elasticity

10.1557/jmr.2004.19.3.716

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Citations (95)

Supramolecular Multiscale Fibers through One‐Dimensional Assembly of Dendritic Molecules

Advanced Materials (2004)

Maryna Ornatska Sergiy Peleshanko B Rybak Jason Holzmueller Vladimir V. Tsukruk

One-dimensional supramolecular structures self-assemble from irregular, highly branched, flexible amphiphiles containing a polyester core and an alkyl- or anthracene-functionalized shell. A combination of intermolecular interactions and steric limitations cause the structures to form nearly perfectly organized microfibers that form bundles from tens of micrometers to centimeters in length (see Figure). The fibers from anthracene-modified molecules possess strong fluorescence properties.

Microfiber

10.1002/adma.200400334

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Citations (53)

Freestanding 2D Arrays of Silver Nanorods

Advanced Materials (2006)

Ray Gunawidjaja Chaoyang Jiang Hyunhyub Ko Vladimir V. Tsukruk

Nanorod

10.1002/adma.200600540

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Citations (33)

Protic and aprotic anionic oligomeric ionic liquids

Polymer (2014)

V. V. Shevchenko A.V. Stryutsky Nina Klymenko M.A. Gumenna A. A. Fomenko

Anhydrous

Propylene oxide

Phthalic anhydride

10.1016/j.polymer.2014.04.020

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Citations (54)

Hierarchical Assembly of Star Polymer Polymersomes into Responsive Multicompartmental Microcapsules

Chemistry of Materials (2016)

Weinan Xu Alexander A. Steinschulte Felix A. Plamper Volodymyr F. Korolovych Vladimir V. Tsukruk

We report a novel approach to realizing programmable encapsulation and following release of different compounds in a sequential way from multicompartmental microcapsules assembled from preformed polymersomes. The polymersomes, or polymeric vesicles, are formed through electrostatic interactions between a cationic miktoarm star polymer, namely poly(ethylene oxide)113-(quaternized poly(2-(dimethylamino)ethyl methacrylate)60)4, and a linear anionic polyelectrolyte, (poly(styrenesulfonate)20), and then used as the main component to fabricate microcapsules with tannic acid via hydrogen-bonded layer-by-layer assembly. The hydrogen bonding between tannic acid and polymersomes is sensitive to external pH, and the structure of the polymersomes strongly depends on the ionic strength of the surrounding media. This combination facilitates dual-responsive behavior of these multicompartmental polymersome-based microcapsules with the programmable release of two different types of encapsulated molecules (anionic and cationic molecules) from core and shell regions of the microcapsules independently. The integration of responsive nanocarriers into functional microcapsules provides a new way to fabricate multiresponsive hierarchical microstructures with programmed sequential release of different molecules.

Polymersome

Cationic polymerization

Tannic acid

Nanocarriers

Layer by layer

10.1021/acs.chemmater.5b04934

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Citations (50)

Bioencapsulated MXene Flakes for Enhanced Stability and Composite Precursors

Advanced Functional Materials (2020)

Michelle Krecker Daria Bukharina Christine B. Hatter Yury Gogotsi Vladimir V. Tsukruk

Abstract Here it is shown that Ti 3 C 2 T x MXene flakes can be co‐assembled with recombinant silk fibroin in aqueous suspensions with silk fibroin nanolayers uniformly covering individual flakes. These bioencapsulated flakes evolve with time due to the gradual growth of silk bundles having β‐sheet secondary organization with unique nanofibrillar morphologies extending across flake edges and forming long fringes around individual MXene flakes. This spontaneous reorganization of recombinant silk suggests surface template‐initiated formation of intramolecular hydrogen bonding of silk backbones assisted by intermolecular electrostatic and hydrogen bonding with the MXene flake. The formation of dense and hydrophobic β‐sheets results in development of a protective shell that hinders the surface oxidation of Ti 3 C 2 T x in colloidal solution in water and significantly extends the storage life of the individual MXene flakes. Moreover, assembly into organized laminated composites with individual bioencapsulated flakes tightly interconnected via biopolymer bundles and hairs produces robust freestanding electrically conductive membranes with enhanced transport properties.

Fibroin

Flake

Biopolymer

10.1002/adfm.202004554

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Citations (85)

Porous Materials: Metalized Porous Interference Lithographic Microstructures via Biofunctionalization (Adv. Mater. 12/2010)

Advanced Materials (2010)

Srikanth Singamaneni Eugenia Kharlampieva Ji‐Hyun Jang Michael E. McConney Hao Jiang

The cover shows an SEM image of a periodic porous SU8 microframe decorated with gold nanoparticles. On p. 1369, Vladimir Tsukruk and co-workers demonstrate a biomediated approach for the metallization of periodic, porous polymer microstructures fabricated using interference lithography. The direct growth of metal nanoparticles does not damage or modify the original structure, making the approach demonstrated here highly suitable for designing reinforced binary microcomposites with predetermined symmetry.

Interference lithography

10.1002/adma.201090035

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Citations (2)

Vivid Structural Coloration in Transparent MXene‐Cellulose Nanocrystals Composite Films

Advanced Functional Materials (2025)

B. I. Dimitrov Valeriia Poliukhova Chan Gyu Joo Madeline L. Buxton Irina Roslyk

Abstract We demonstrate shear‐printed layered photonic films with vivid structural coloration from bio‐derived cellulose nanocrystals and highly aligned Ti 3 C 2 T x MXene nanoflakes. These ultrathin films (700–1500 nm) show high light transmittance above 40% in the visible range. In reflectance mode, however, the films appear vividly colored and iridescent due to the multiple distinct photonic bandgaps in the visible and near‐infrared ranges, which are rarely observed in CNC composites. The structural coloration is controlled by the stacking of MXene nanoscale‐thin layers separated by the thicker cellulose nanocrystals matrix, as confirmed by photonic simulations. The unique combination of distinctly different optical appearances in transmittance and reflectance modes occurs in films printed with just a few layers. This is because of the molecularly smooth interfaces and the high refractive contrast between bio‐based and inorganic phases, which result in a concurrence of constructive and destructive interference. These lamellar biophotonic films open the possibilities for advanced radiative cooling, camouflaging, multifunctional capacitors, and optical filtration applications, while the cellulose nanocrystals matrix strengthens their flexibility, robustness, and facilitates sustainability.

Structural Coloration

Bacterial Cellulose

Nanocellulose

10.1002/adfm.202420853

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Citations (0)

Amphiphilic Hairy Disks with Branched Hydrophilic Tails and a Hexa-peri-hexabenzocoronene Core

Journal of the American Chemical Society (2002)

Myongsoo Lee Jung-Woo Kim Sergiy Peleshanko K. Larson Yong‐Sik Yoo

Amphiphilic discotic molecules with hydrophilic side branches consisting of hexaphenyl hexa-peri-hexabenzocoronene and hexabiphenyl hexa-peri-hexabiphenylcoronene as the aromatic core and hexa-substituted oligoethers as the branched peripheral chains have been synthesized, and their microstructure has been characterized. The discotic molecules based on dibranched oligoether side chains have been observed to self-organize into a well-ordered hexagonal columnar structure within liquid crystalline phases, which possessed an exceptionally high thermal stability and an unusually wide temperature range over >300 degrees C. We suggest that a combination of the large lateral dimensions of the rigid cores and disordered structure of the oxygen-containing branches tails is a driving force to the formation of a highly ordered columnar structure in the bulk state with enhanced molecular segregation. In contrast to the thermotropic phase behavior that favors the formation of highly ordered columnar aggregates through a strong stacking interaction, the hexabenzocoronene cores are packed in a face-on arrangement at the air/water interface and on solid surfaces with surface domains composed of an array of 7 x 7 molecules. We suggest a crablike molecular conformation and cluster-segregated monolayers with 6-fold symmetry and unusual face-on packing on a solid surface. Preliminary spectroscopic studies in the bulk state have shown that the molecules based on a hexaaromatic-substituted core may serve as functional supramolecular materials with high energy transfer characteristic within the columns due to near-perfect columnar ordering, which is unchanged over a wide temperature range. We believe that an absence of the crystallization phenomenon of side-branched oligoether chains is critical for the formation of long-range columnar ordering with strong intracolumnar correlation of conjugated disks important for high carrier mobility.

Columnar phase

Discotic liquid crystal

Thermotropic crystal

Side chain

10.1021/ja017553+

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Citations (59)

On the structure of polyamidoamine dendrimer monolayers

Polymer (1998)

Valery N. Bliznyuk Frank Rinderspacher Vladimir V. Tsukruk

Exponent

Scaling law

10.1016/s0032-3861(98)00069-x

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Citations (82)