Design of a novel wound dressing consisting of alginate hydrogel and simvastatin-incorporated mesoporous hydroxyapatite microspheres for cutaneous wound healing

Wound dressings consisting of alginate hydrogel and simvastatin-incorporated mesoporous hydroxyapatite microspheres stimulated angiogenesis and accelerated cutaneous wound healing.

Controlling an electrostatic repulsion by oppositely charged surfactants towards positively charged fluorescent gold nanoclusters

An anionic surfactant enabled the first accomplish of cationic-thiolate protected fluorescent gold nanoclusters by chemical reduction.

Porous carbon-coated cobalt sulfide nanocomposites derived from metal organic frameworks (MOFs) as an advanced oxygen reduction electrocatalyst

PC-CoS_1.097 NCs were synthesized from the ZIF-9 and sulfur powder and exhibit excellent performance for ORR in alkaline medium.

Adsorption of indole and quinoline from a model fuel on functionalized MIL-101: effects of H-bonding and coordination

Adsorptive denitrogenation was carried out with functionalized metal–organic frameworks in order to understand plausible adsorption mechanisms.

Surfactant-assisted synthesis of nanoporous nickel sulfide flakes and their hybridization with reduced graphene oxides for supercapacitor applications

We report a simple soft-templating strategy for the synthesis of nanoporous crystalline nickel sulfide with two-dimensional (2-D) morphology.

pH-Responsive drug release and NIR-triggered singlet oxygen generation based on a multifunctional core–shell–shell structure

A multifunctional platform drug with pH-responsive drug release and near-infrared (NIR) light-triggered photodynamic therapy (PDT) was designed and prepared using the novel core–shell–shell structure.

Novel H⁺-Ion Sensor Based on a Gated Lateral BJT Pair

An H⁺-ion sensor based on a gated lateral bipolar junction transistor (BJT) pair that can operate without the classical reference electrode is proposed. The device is a special type of ion-sensitive field-effect transistor (ISFET). Classical ISFETs have the advantage of miniaturization, but  they are difficult to fabricate by a single fabrication process because of the bulky and brittle reference electrode materials. Moreover, the reference electrodes need to be separated from the sensor device in some cases. The proposed device is composed of two gated lateral BJT components, one of which had a silicide layer while the other was without the layer. The two components were operated under the metal-oxide semiconductor field-effect transistor (MOSFET)-BJT hybrid mode, which can be controlled by emitter voltage and base current. Buffer solutions with different pH values were used as the sensing targets to verify the characteristics of the proposed device. Owing to their different sensitivities, both components could simultaneously detect the H⁺-ion concentration and function as a reference to each other. Per the experimental results, the sensitivity of the proposed device was found to be approximately 0.175 μA/pH. This experiment demonstrates enormous potential to lower the cost of the ISFET-based sensor technology.

Mesoporous Pt nanospheres with designed pore surface as highly active electrocatalyst

A novel strategy for large-scale synthesis of shape- and size-controlled mesoporous Pt nanospheres (MPNs) through a slow reduction reaction in the presence of surfactant is reported here for the first time.

A novel strategy for large-scale synthesis of shape- and size-controlled mesoporous Pt nanospheres (MPNs) through a slow reduction reaction in the presence of surfactant is reported here for the first time. The slow reduction reaction exclusively results in well-defined mesoporous architectures distinctly different from the dendritic constructions reported previously. More importantly, abundant catalytically active sites are created on the highly accessible mesoporous surfaces by the selective adsorption of bromide ions. The MPNs prepared by using the new synthetic route not only show superior electrochemical performance toward methanol oxidation reaction and oxygen reduction reaction, but also exhibit extremely high structural thermostability, which makes them promising catalysts for industrial applications.

Novel morphology changes from 3D ordered macroporous structure to V2O5 nanofiber grassland and its application in electrochromism

Because vanadium pentoxide (V₂O₅) is the only oxide that shows both anodic and cathodic coloration electrochromism, the reversible lithium ion insertion/extraction processes in V₂O₅ lead to not only reversible optical parameter changes but also multicolor changes for esthetics. Because of the outstanding electrochemical properties of V₂O₅ nanofibers, they show great potential to enhance V₂O₅ electrochromism. However, the development and practical application of V₂O₅ nanofibers are still lacking, because traditional preparation approaches have several drawbacks, such as multiple processing steps, unsatisfactory electrical contact with the substrate, expensive equipment, and rigorous experimental conditions. Herein, we first report a novel and convenient strategy to prepare grass-like nanofiber-stacked V₂O₅ films by a simple annealing treatment of an amorphous, three-dimensionally ordered macroporous vanadia film. The V₂O₅ nanofiber grassland exhibits promising transmittance modulation, fast switching responses, and high color contrast because of the outstanding electrochemical properties of V₂O₅ nanofibers as well as the high Li-ion diffusion coefficients and good electrical contact with the substrate. Moreover, the morphology transformation mechanism is investigated in detail.

Synthesis of magnetic mesoporous titania colloidal crystals through evaporation induced self-assembly in emulsion as effective and recyclable photocatalysts

This study illustrates the directed self-assembly of mesoporous TiO₂ with magnetic properties due to its colloidal crystal structure with Fe₃O₄.

Layer-by-layer motif hybridization: nanoporous nickel oxide flakes wrapped into graphene oxide sheets toward enhanced oxygen reduction reaction

Herein we report a novel strategy involving the hybridization of nanoporous NiO flakes with graphene oxide (GO) sheets.

Porous nanoarchitectures of spinel-type transition metal oxides for electrochemical energy storage systems

Transition metal oxides possessing two kinds of metals (denoted as A_xB_3−xO₄, which is generally defined as a spinel structure; A, B = Co, Ni, Zn, Mn, Fe,etc.), with stoichiometric or even non-stoichiometric compositions, have recently attracted great interest in electrochemical energy storage systems (ESSs).

Photoinduced adsorption of spiropyran into mesoporous silicas as photomerocyanine

UV irradiation to a spiropyran-containing suspended mesoporous silica in toluene, the photochemically formed photomerocyanine was adsorbed into the mesoporous silica to give a very stable red-colored product.