Materials Literature
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Utilizing α-bromo-γ-butyrolactone (αBrγBL) as a comonomer with ε-caprolactone (εCL) or <sc>l</sc> -lactide (LLA) produces copolymers with active and available grafting sites, <italic>e.g.</italic> , for SET-LRP, where the choice of the grafting monomers is limited only by one's imagination.
The intrinsic coagulation activity of silica nanoparticles strongly depends on their surface curvature. Nanoparticles with higher surface curvature do not denature blood coagulation factor XII on its surface, providing a coagulation 'silent' surface, while nanoparticles with lower surface curvature show denaturation a…
The “twistome” of push–pull oligothiophenes is covered comprehensively. Particular emphasis is on the development of conceptually innovative fluorescent membrane probes.
We report here a series of heavier alkaline earth metal complexes with N,N'-(ethane-1,2-diyl)bis(P,P-diphenylphosphinoselenoic amide) using two synthetic routes. In the first route, the heavier alkaline earth metal bis(trimethylsilyl)amides [M{N(SiMe3)2}2(THF)n] (M = Ca, Sr, Ba), when treated with phosphinoselenoic am…
We have used time- and angle-resolved photoemission spectroscopy (tr-ARPES) to assess the influence of many-body interactions on the Dirac carrier dynamics in graphene. From the energy-dependence of the measured scattering rates we directly determine the imaginary part of the self-energy, visualizing the existence of…
A novel pH-sensitive amphiphilic copolymer Chol- <italic>g</italic> -P(HEMA- <italic>co</italic> -DEAEMA)- <italic>b</italic> -PPEGMA and its micelles were developed as a promising anti-cancer drug carrier.
By means of the limited conjugation length, the intrinsic 3-dimensional conformations and the potential nanoporous structures, π-conjugation-interrupted hyperbranched polymers (CIHPs) were demonstrated as polymer electrets for the application of organic transistor memory devices.
In the present study three structurally different diamines namely bisphenol-A based ether diamine, octane diol based ether diamine, and capron based diamine were synthesized and characterized using FT-IR, <sup>1</sup> H-NMR and <sup>13</sup> C-NMR spectra.
A comparison of attenuation effectiveness against gamma rays and thermal neutrons among aluminum A356, close-cell composite metal foams and open-cell Aluminum foam infiltrated with variety of second phase materials were investigated experimentally and theoretically in this study. Gamma rays attenuation measurements we…
A series of bis- and tris[(trimethylsilyl)ethynyl]anthracenes (1,5-, 1,8-, 9,10- and 1,8,10-) has been synthesised by multistep (cross coupling) reactions and the behaviour of the SiMe3-functionalised alkynylanthracene derivatives towards UV irradiation was qualitatively studied by NMR spectroscopy. In the case of 9,1…
The conjugation of taurine with a dipeptide derivative affords a cell compatible, small molecular hydrogelator to form hydrogels that exhibit rich phase transition behaviors in response to sonication and the change of pH or temperature.
We studied the self-assembly of trimesic acid on single- and few-layer graphene supported by SiO2 substrates. A scanning tunneling microscope operated under ambient conditions was utilized to image supramolecular networks of trimesic acid at liquid-graphene interfaces. Trimesic acid can self-assemble into large-scale,…
Ultra-small metallic nanoparticles, or so-called "nanoclusters" (NCs), have attracted considerable interest due to their unique optical properties that are different from both larger nanoparticles and single atoms. To prepare high-quality NCs, the stabilizing agent plays an essential role. In this work, we have reveal…
The dispersion, local orientation and optical absorption of polystyrene (PS, degree of polymerization P) nanocomposites containing PS-grafted gold nanorods (Au NRs, PS degree of polymerization N), with aspect ratios (ν = length/diameter) ranging from 2.5 to 6.3, are studied using quantitative scanning electron microsc…
Ag–Au and Ag–Pd alloy triangular hollow nanoframes were prepared using galvanic replacement (GR) reactions of Ag nanoprisms with HAuCl4 and Na2PdCl4 in an aqueous solution. Their growth mechanisms were studied by observing transmission electron microscopic (TEM) and TEM-energy dispersed X-ray spectroscopic (EDS), XRD,…
Graphene–semiconductor QD hybrid nanostructure materials have recently emerged as a new class of functional materials because of their potential applications in solar energy conversion, optoelectronic devices, sensing etc. Here, oleic acid-capped CdSe QDs are attached to –PhSH functionalized graphene by ligand exchang…
Fourier transform infrared (FTIR) and scanning transmission X-ray microscopy (STXM) spectroscopic imaging techniques are introduced to determine the structure of protein-based polymer blends, using the silk fibroin/polyethylene oxide (SF/PEO) blend as a model material. We demonstrate that FTIR and STXM imaging techniq…
The selective recognition/extraction of semiconducting (sem)- and metallic (met)-single-walled carbon nanotubes (SWNTs) is still a great challenge in the science and technology of carbon nanotubes because their selective synthesis is still difficult. Poly(9,9-dioctyl-fluorene-2,7-diyl) (2C8-PF) and its derivatives are…
Polyelectrolyte complexes, long considered “unprocessible”, are transformed from brittle to tough by extrusion into highly strained fibers with a salt/temperature equivalence relaxation and efficient shape memory in hot water.
The nanoparticles of amorphous Ni–B and Ni–Mn–B alloys are synthesized and investigated as electrochemical pseudocapacitor materials for potential energy storage applications.