Materials Literature
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Bioadhesives are high molecular weight, biocompatible, biodegradable polymers used to join two surfaces where at least one of them is a living tissue. Bioadhesives are used for two main purposes, first as a replacement for surgical sutures and second as a substitute for traditional drug dosage systems. There are sever…
Incoherent collimated beam has a wide application, and reshaping the collimated beam with freeform optics has become a popular and challenging topic of noniamging design. In this paper, we address this issue, embedded in three-dimensional space without any symmetry, with a freeform surface from a new perspective. A ma…
Developments in the chemistry of 2,6-di(pyrazol-1-yl)pyridine (1-bpp) and 2,6-di(pyrazol-3-yl)pyridine (3-bpp), their derivatives and their complexes are surveyed, with emphasis on the last eight years. Particular advances include the synthesis of multi-functional spin-crossover switches; the incorporation of emissive…
Mesenchymal stem cell (MSC) therapy offers the potential to promote recovery after myocardial infarction (MI). However, therapeutic efficacy may be limited by poor survival and retention of transplanted cells. A combination of gene and cell therapy has the capacity to prevent donor cell death and augment the reparativ…
InP and GaP nanowires (NWs) were synthesized via a simple thermal evaporation method for applications as high performance visible-light photodetectors. Individual InP NW field-effect transistors (FETs) were fabricated to study their electronic transport and photoresponse characteristics, which exhibited typical n-type…
Polymerization-induced self-assembly is demonstrated to be a valid strategy to prepare highly concentrated block copolymer nano-objects. Herein, an investigation on the growth of block copolymer nanoparticles through macro-RAFT agent-mediated dispersion polymerization was performed by employing the brush macro-RAFT ag…
It has been proposed that interface morphology affects the recombination rate for electrons and holes at donor-acceptor heterojunctions in thin film organic photovoltaic cells. The optimal morphology is one where there is disorder at the heterointerface and order in the bulk of the thin films, maximizing both the shor…
Surface plasmon-enhanced light absorption for photoelectrochemical water splitting at α-Fe 2 O 3 thin film electrode coated with Au nanorods (NRs) is described. Au NRs are self-assembled onto a hematite thin film electrode using electrostatic force between their positively charged cetyltrimethylammonium bromide (CTAB)…
The time required to fold proteins usually increases significantly under conditions of high pressure. Taking advantage of this general property of proteins, we combined P-jump experiments with NMR spectroscopy to examine in detail the folding reaction of staphylococcal nuclease (SNase) and of some of its cavity-contai…
Abstract In the present study, ten metal-free dyes for dye-sensitized solar cells (DSSCs) have been designed. These dyes have designed by structural modification of TC4. Density functional theory was used for structure optimization and determination of photophysical properties. These dyes contain triphenylamine as ele…
Much greater surface-to-volume ratio of hierarchical nanostructures renders them with promising potential for high performance chemical sensing. In this work, crystalline nanocombs were synthesized via chemical vapor deposition and fabricated into resistive gas sensors. Particularly, NO2 sensing performance of these d…
Abstract We report a three‐dimensional (3D), pore‐scale analysis of morphological and transport properties for a polymer electrolyte fuel cell (PEFC) catalyst layer. The 3D structure of the platinum/carbon/Nafion electrode was obtained using nano‐scale resolution X‐ray computed tomography (nano‐CT). The 3D nano‐CT dat…
Nature displays numerous examples of materials that can autonomously change their shape in response to external stimuli. Remarkably, shape changes in biological systems can be programmed within the material's microstructure to enable self-shaping capabilities even in the absence of cellular control. Here, we revisit r…
Recently, transition metal dichalcogenides (TMDCs) have attracted interest thanks to their large field effective mobility (>100 cm(2)/V · s), sizable band gap (around 1-2 eV), and mechanical properties, which make them suitable for high performance and flexible electronics. In this paper, we present a process scheme e…
Nowadays, an increasing attention has been paid to the technologies for removing mercury from flue gases. Up to date, no optimal technology that can be broadly applied exists, but the heterogeneous catalytic oxidation of mercury is considered as a promising approach. Based on a brief introduction of the pros and cons…
A new series of strongly greenish-blue to blue emitting Cu(NN)(POP) + (POP = bis[2-(dipenylphosphino)phenyl]ether) complexes containing N-linked 2-pyridyl pyrazolate diimine ligands [Cu(pypz)(POP)]BF 4 ( 1 ), [Cu(pympz)(POP)]BF 4 ( 2 ), and [Cu(pytfmpz)(POP)]BF 4 ( 3 ) (pypz = 1-(2-pyridyl)pyrazole, pympz = 3-methyl-1…
Fe-6.5wt%Si silicon steel has excellent soft magnetic properties, but its ductility in room temperature is near zero. A lot of researchers tried to improve the ductility by adding alloy elements. In this paper, we summarized the action mechanism and the content of these alloy elements according to the overseas and dom…
Fluorinated acrylate emulsion was prepared in the presence of TPG as co-solvent, effects of TPG content to the polymerization stability and monomer conversion of the prepared emulsion was studied by the coagulation ratio and conversion rate, respectively. The hydrophobicity and oleophilicity of the polymer film was st…
Three-dimensional short carbon fiber felt reinforced C/SiC composites were prepared by the liquid silicon infiltration (LSI) process. The influences of different porosity ratios, carbon coating, and heat treatment of C/C substrates, on the properties of C/SiC composites were studied. The optimized porosity ratio is ca…
Cu/SiO2 catalyst by using Na2SiO3 as the silicon source, and the catalytic activity for 2-butanol dehydrogenation was compared with the conventional traditional industrial catalysts (Cu/Al and Cu/Zn). The catalysts were characterized by FTIR and XRD. The copper hydrosilicate was detected as the main phase in the dried…