Gabla, Jenifer J.; Lathiya, Dharmesh R.; Revawala, Akash A.; Maheria, Kalpana C.
PropylSO3H functionalized SBA-15: Microwave-mediated green synthesis of biologically active multi-substituted imidazole scaffolds
Propylsulfonic acid functionalized Santa Barbara Amorphous-15 (SBA-15PrSO3H) catalyst has been synthesized using a surface modification of mesoporous SBA-15 via the one-pot co-condensation method. The synthesized SBA-15PrSO3H has been characterized by peculiar characterization techniques such as small- and wide-angle XRD, SEMEDX, TEM, TGDTA, acidity, FT-IR, Py-FT-IR and BET surface area
Collective orientational order and phase behavior of a discotic liquid crystal under nanoscale confinement
Yildirim, Arda; Sentker, Kathrin; Smales, Glen Jacob; Pauw, Brian Richard; Huber, Patrick; Schönhals, Andreas
The phase behavior and molecular ordering of hexakishexyloxy triphenylene (HAT6) DLCs under cylindrical nanoconfinement are studied utilizing differential scanning calorimetry (DSC) and dielectric spectroscopy (DS), where cylindrical nanoconfinement is established through embedding HAT6 into the nanopores of anodic aluminum oxide (AAO) membranes, and a silica membrane with pore diameters ranging
Bacteria-Resistant, Transparent, Free-Standing Films Prepared from Complex Coacervates
Kurtz, Irene S.; Sui, Shuo; Hao, Xi; Huang, Mengfei; Perry, Sarah L.; Schiffman, Jessica D.
We report the fabrication, properties, and bacteria-resistance of polyelectrolyte complex (PEC) coatings and free-standing films. Poly(4-styrenesulfonic acid), poly(diallyldimethylammonium chloride), and salt were spin-coated into PEC films. After thermal annealing in a humid environment, highly transparent, mechanically strong, and chemically robust films were formed. Notably, we demonstrate
4D biofabrication of skeletal muscle microtissues
Apsite, Indra; Uribe, Juan Manuel; Posada, Andrés Fernando; Rosenfeldt, Sabine; Salehi, Sahar; Ionov, Leonid
Skeletal muscle is one of the most abundant tissues in the body. Although it has a relatively good regeneration capacity, it cannot heal in the case of disease or severe damage. Many current tissue engineering strategies fall short due to the complex structure of skeletal muscle. Biofabrication techniques have emerged…
Antimicrobial and cytotoxic activity of (thio)alkyl hexopyranosides, nonionic glycolipid mimetics
Dubák, Petr; Gurská, So?a; Bogdanová, Kate?ina; Uhríková, Daniela; Kanjaková, Nina; Combet, Sophie; Klunda, Tomá; Kolá?, Milan; Hajdúch, Marian; Poláková, Monika
A series of 19 synthetic alkyl and thioalkyl glycosides derived from d-mannose, d-glucose and d-galactose and having C10C16 aglycone were investigated for cytotoxic activity against 7 human cancer and 2 non-tumor cell lines as well as for antimicrobial potential on 12 bacterial and yeast strains. The most potent compounds were…
Time resolved alkali silicate decondensation by sodium hydroxide solution
Dupuis, Romain; Rodrigues, Donatien Gomes; Champenois, Jean-Baptiste; Pellenq, Roland; Poulesquen, Arnaud
Silica is by far the chemical compound the most widespread and used around the world: as a raw product in the buildings and roads industry, as concrete, or as a processed product in the manufacture of glass, ceramics or zeolites. In alkali silicate solutions often used to synthesize those…
Physicochemical Properties of the Binary Mixtures of CuII-Containing Chelate-Based Ionic Liquids with Linear Alcohols
Zhang, Songna; Wang, Yongtao; Wang, Xinyu; Yao, Jia; Li, Haoran
Systematic measurements (densities, viscosities, conductivities) combined with small-angle X-ray scattering (SAXS) experiments were performed for binary mixtures of CuII-containing chelate-based ionic liquid (ChIL) with linear alcohols. The experimental results were explained by disruption of alcohols to ionic aggregation of the ChILs. Viscosity deviations (??) of four binary systems all show
Tailoring the pore size and permeability of isoporous membranes through blending with poly(ethylene glycol): Toward the balance of macro- and microphase separation
Yang, Cao-ying; Zhu, Guo-dong; Yi, Zhuan; Qiu, Ya-yu; Liu, Li-fen; Gao, Cong-jie
Isoporous membranes prepared from the combination of self-assembly and non-solvent induced phase inversion (SNIPS) were known for their asymmetric structures that were characterized with an isoporous top layer and porous/interconnected sublayer. This unique feature provides an opportunity to tailor the structure on toplayer and sublayer separately or synchronously by adjusting…
Cell wall structure and composition is affected by light quality in tomato seedlings
Falcioni, Renan; Moriwaki, Thaise; Perez-Llorca, Marina; Munné-Bosch, Sergi; Gibin, Mariana Sversut; Sato, Francielle; Pelozo, Andressa; Pattaro, Mariana Carmona; Giacomelli, Marina Ellen; Rüggeberg, Markus; Antunes, Werner Camargos
Light affects many aspects of cell development. Tomato seedlings growing at different light qualities (white, blue, green, red, far-red) and in the dark displayed alterations in cell wall structure and composition. A strong and negative correlation was found between cell wall thickness and hypocotyl growth. Cell walls was thicker under…
Biomimetic Mineralized OrganicInorganic Hybrid Macrofiber with Spider Silk-Like Supertoughness
Yu, Yadong; He, Yan; Mu, Zhao; Zhao, Yueqi; Kong, Kangren; Liu, Zhaoming; Tang, Ruikang
Spider silk fibers (SSF) have a hierarchical structure composed of proteins with highly repetitive sequences and biomineralization is sophisticated in hierarchical organicinorganic constructions. By using inorganic hydroxyapatite (HAP) and organic polyvinyl alcohol (PVA) to simulate the rigid crystalline and flexible amorphous protein blocks of SSF, respectively, biomimetic mineralization is