Materials Literature
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Nanoparticles have entered the scientific world with varied potential applications, of which studies are often conducted in relation to pharmaceuticals as potent drug delivery systems. They perk up pharmacokinetic and pharmacodynamic properties. But, in the era of innovation the studies have revealed a novel side of n…
There is always a search for reliable and environmentally friendly processes to manufacture metal and metal oxide nanoparticles minimizing or even eliminating the use of hazardous chemicals. The only way to develop these “green” processes is to adapt benign synthesis approaches that use mild reaction conditions and no…
Novel carborane-triphenylamine dyad 1 was successfully prepared. The dyad exhibited the aggregation-induced emission (AIE) property in a solution of THF/water [1/99 (v/v)]. The cyclic voltammogram of 1 measured in tetrabutylammonium perchlorate (TBAP)/DMF using glassy carbon (GC) disk working electrode showed redox co…
Tungsten trioxide (WO3) thin films were synthesised by electrodeposition using peroxotungtic acid as the precursor electrolyte solution for use as photoanodes in a photoelectrochemical cell for solar hydrogen applications. The films were coated at deposition potentials varying from 0.30 to 0.90 V versus Ag/AgCl in ord…
TiO2 nanoparticles were synthesized using a wet chemical technique. The as prepared nanopowder was used for further characterization. The prepared TiO2 nanoparticles were characterized for phase composition, using X-ray diffractometry. The particle size and morphology were studied using Scanning electron microscope an…
We investigated the segmental mobility distribution at the poly(methyl methacrylate) film surface within the depth of 9.0 nm, by measuring the surface reorganization of fluorinated tracer-labeled PMMA using three different surface-sensitive techniques with various analytical depth capabilities, including contact angle…
We outline a simple technique to engineer monodisperse, superparamagnetic, micron-sized prisms of arbitrary cross-section and large magnetic susceptibility. The fabrication process allows pre-positioning of the particles that introduces another lever to guide self-assembly. In this method, a dispersion of magnetic col…
PVDF-based block copolymers have been employed as precursors for the construction of PVDF/PMAA/Ni nanocomposites. New poly(tert-butyl methacrylate)-block-poly(vinylidene fluoride)-block-poly(tert-butyl methacrylate) (PtBMA-b-PVDF-b-PtBMA) triblock copolymers were synthesized via atom transfer radical polymerization (A…
Viscous threads that form the prey capture spiral of araneoid orb-webs retain insects that strike the web, giving a spider more time to locate and subdue them. The viscoelastic glycoprotein glue responsible for this adhesion forms the core of regularly spaced aqueous droplets, which are supported by protein axial fibe…
Efficient temperature-sensing platform was demonstrated using temperature-responsive, fluorescent P7AC-b-PNIPAM-b-PSN3 block copolymer-anchored graphene oxide sheets (FGO). FGO exhibited extraordinary stability in water and showed fast optical on-off switching behavior in response to temperature change.
The concept of band structure engineering near the Fermi level through atomic-scale alteration of a bulk semiconductor crystal structure using coherently embedded intrinsic semiconducting quantum dots provides a unique opportunity to manipulate the transport behavior of the existing ensembles of carriers within the se…
An organic/inorganic light‐emitting diode (LED) consisting of n‐type vertically aligned ZnO nanowires (NWs) and p‐type proton acid doped polyaniline (PANi) is reported. The device was fabricated on flexible indium‐tin‐oxide (ITO) coated polyethylene terephthalate (PET) substrate. A broad blue light emission band rangi…
This study reports a strategy that allows one to finely tune the distance between Ag nanoparticles decorated on thermoresponsive microgels to create vast 'hot spots' for electromagnetic enhancement. The dynamic gap (i.e. the interparticle distance) can be tuned easily because the microgel template undergoes a phase tr…
A series of stable graphene dispersions in different organic solvents were prepared by the liquid-phase exfoliation of microcrystalline graphite. The pristine graphite was heat-treated in N-methyl-2-pyrrolidone before it was exfoliated in solvents containing 0.1 mg mL−1 polyvinyl pyrrolidone (PVP). X-ray diffraction a…
In this paper the reactivity of K15H[Zr(α2-P2W17O61)2]·25H2O (1), a Zr(IV)-substituted Wells-Dawson polyoxometalate, is examined towards a series of Gly-Aa, Aa-Gly or Aa-Ser dipeptides, in which the nature and the size of the Aa amino acid side chain were varied. The rate of peptide bond hydrolysis, determined by (1)H…
This Highlight Article discusses the important yet frequently overlooked entropic effects in soft matter systems that have one or more tethered binding groups. We show that the effective interactions depend sensitively on a combination of configurational, combinatorial and translational entropy factors, which have to…
We report a new protocol for the synthesis of M@rGO (M = Au, Pt, Pd, Ag and rGO = reduced graphene oxide) hybrid nanostructures at room temperature in Zn-acid medium. The roles of Zn-acid are to reduce the GO by generated hydrogen and the deposition of metal nanoparticles on rGO by galvanic replacement reaction betwee…
This article describes a facile synthesis of Pd-Ir bimetallic nanostructures in the forms of core-shell octapods and alloyed nanocages. The success of this synthesis relies on the use of Pd nanocubes as the sacrificial templates and interplay of two different processes: the galvanic replacement between an Ir precursor…
Hyperbranched epoxy resins with a silicone skeleton (HERSS) obtained by us through an environmentally-friendly synthetic method have shown a prominent comprehensive performance in modifying the diglycidyl ether of bisphenol-A (DGEBA). However, controlling the performance of the HERSS is still a challenge. In this pape…
Theoretical studies on the atomic and electronic structure of Agn−,0,+ clusters containing up to 15 atoms have been carried out using a gradient corrected density functional formalism. Our studies indicate that the atomic structures of the clusters undergo a transition from spherical to prolate to oblate shapes as a f…