Materials Literature
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We report a new method for the facile and fast synthesis of poly(NMA-co-VCL) (NMA = N-methylolacrylamide, VCL = N-vinylcaprolactam) hydrogels via infrared laser ignited frontal polymerization (LIFP). Once LIFP was initiated, no further energy was required for the following polymerization. We investigated the dependenc…
Sulfonated poly(fluorenyl ether ketone) (SPFEK) membranes have been first modified by layer-by-layer (LbL) self-assembly of positively charged polyelectrolyte PDDA (poly(diallyldimethylammonium chloride)) and negatively charged PSS (poly(sodium styrene sulfonate)). The membranes were investigated as an ion exchange me…
Nanocomposites composed of diblock copolymer/ferroelectric nanoparticles were formed by selectively constraining ferroelectric nanoparticles (NPs) within diblock copolymer nanodomains via judicious surface modification of ferroelectric NPs. Ferroelectric barium titanate (BaTiO3) NPs with different sizes that are perma…
Much is anticipated from the development and deployment of nanomaterials in biological organisms, but concerns remain regarding their biocompatibility and target specificity. Here we report our study of the transport, biocompatibility and toxicity of purified and stable silver nanoparticles (Ag NPs, 13.1 ± 2.5 nm in d…
One of the major themes in correlated electron physics over the last quarter century has been the problem of high-temperature superconductivity in hole-doped copper-oxide compounds. Fundamental to this problem is the competition between antiferromagnetic spin correlations, a symptom of strong Coulomb interactions, and…
Nanoparticles used in biological applications encounter a complex mixture of extracellular proteins. Adsorption of these proteins on the nanoparticle surface results in the formation of a “protein corona,” which can dominate the interaction of the nanoparticle with the cellular environment. The goal of this research w…
The decomposition mechanism of ammonium nitrate in the gas phase was investigated and fully characterized by means of CBS-QB3 calculations. Five reaction channels were identified, leading to the formation of products (N2, H2O, O2, OH, HNO, NO3) found in the experimental works. The identified mechanism well underlines…
Two new Indium MOFs with the bending multicarboxylate ligand H2dpmda as a linker and different N-donor ancillary ligands were obtained; the two compounds are isoreticular with 2D-hcb uninodal 3-connected nets. Comparison of their activity in cyanosilylation reactions with another eight In-MOFs is also reported. Eight…
A novel method for the selective fluorescence sensing of Hg2+ and Zn2+ ions via dual independent channels was reported, based on the site-specific functionalization of mesoporous silica nanoparticles (MSN). Taking advantage of the distinctive co-condensation and post-grafting process of different organoalkoxysilanes,…
A new luminescent Zn-MOF has been synthesized under hydrothermal condition using a semi-rigid ligand H3pcoip (4-(2-carboxyphenoxy)isophthalic acid) is reported. The luminescence properties of 1 in methanol, ethanol, and water have been investigated. Interestingly, compound 1 has a unique response to methanol compared…
A new 2-oxazoline monomer with a Boc-protected amino group in the side chain (BocOx) was synthesized. Homopolymerization as well as copolymerization with 2-ethyl-2-oxazoline (EtOx) revealed a pseudo first order kinetic. A series of homopolymers was synthesized, deprotected and characterized regarding their structure a…
To some extent contradicting the classical paradigm of the relationship between protein 3D structure and function, now it is clear that large portions of the proteomes, especially in higher organisms, lack a fixed structure and still perform very important functions. Proteins completely or partially unstructured in th…
Protein adsorption influences greatly the performance of materials used in biotechnology and biomedicine. The binding of fibrinogen (Fg) to nanoparticles (NPs) can result in protein unfolding and exposure of cryptic epitopes that subsequently interact with cell surface receptors. The response and its degree are depend…
LiMn2O4 yolk-shell powders with a distinctive filled-core@void@shell configuration are prepared by a spray pyrolysis process. The yolk-shell powders have discharge capacities of 127, 120, and 115 mA h g(-1) after 200 cycles, even at high current densities of 3 C (360 mA g(-1)), 5 C, and 10 C, respectively.
Hybrid structures between semiconducting metal oxides and carbon with rational synthesis represent unique device building blocks to optimize the light absorption and charge transfer process for the photoelectrochemical conversion. Here we demonstrate the realization of a WO3-reduced graphene oxide (RGO) nanocomposite…
By the layer-by-layer self-assembly of chitosan and cysteine modified β-cyclodextrin on the surface of Fe3O4 nanoparticle-decorated attapulgite, the polyelectrolyte-coated magnetic attapulgite composite (Fe3O4/ATP@(CS/Cys-β-CD)8) was prepared for the adsorption of precious metals. The as-synthesized Fe3O4/ATP@(CS/Cys-…
Hydrogen production from solar power energy is an important energy and environmental issue. Silicon (Si) has been widely studied as a photocathode for hydrogen production from water splitting. In this study, the electrochemical behavior of a Si photocathode for water splitting is highly dependent on its nanostructure.…
Although various pharmacological activities of the shikonins have been documented, understanding the hierarchical regulation of these diverse bioactivities at the genome level is unsubstantiated. In this study, through cross examination between transcriptome and microRNA array analyses, we predicted that topical treat…
The investigation was to evaluate gastroprotective effects of ethanolic extract of M. pruriens leaves on ethanol-induced gastric mucosal injuries in rats. Forty-eight rats were divided into 8 groups: negative control, extract control, ulcer control, reference control, and four experimental groups. As a pretreatment, t…
The present study was focused on the potential of Kaffir lime (Citrus hystrix) peel to be a source of pectin. Kaffir lime belongs to the citrus family and has a thicker skin which can be used as a source of pectin. Pectin was extracted from Kaffir lime peel using three different acids (citric, hydrochloric or nitric)…