Materials Literature
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We describe the synthesis of iron oxide nanoparticles (IONPs) with excellent colloidal stability in both water and serum, imparted by carefully designed grafted polymer shells. The polymer shells were built with attached aldehyde functionality to enable the reversible attachment of doxorubicin (DOX) via imine bonds, p…
We study the formation of bismuth oxide hollow nanoparticles by the Kirkendall effect using liquid cell transmission electron microscopy (TEM). Rich dynamics of bismuth diffusion through the bismuth oxide shell have been captured in situ. The diffusion coefficient of bismuth through bismuth oxide shell is 3-4 orders o…
Control over chemical reactivity is essential in the field of nanotechnology. Graphene is a two-dimensional atomic sheet of sp(2) hybridized carbon with exceptional properties that can be altered by chemical functionalization. Here, we transferred single-layer graphene onto a flexible substrate and investigated the fu…
Herein we demonstrate that switchable, spontaneous, directional-transport ability to both water and oil fluids can be created on fabric materials through wet-chemistry coating and successive UV irradiation treatment. When the fabric showed directional transport to a liquid, it prevented liquids of higher surface tensi…
Tetraphenylethene and doxorubicin are assembled into a self-indicating drug delivery system (TD NPs). TD NPs are decomposed into DOX and TPE NPs in lysosome. Since TD NPs, TPE NPs and DOX are all fluorescent, the detachment of DOX from TPE NPs is accompanied by fluorescence changing. By observing the fluorescence chan…
Phosphorescent iridium(III) complexes with three bidentate carborane-functionalized ligands have been synthesized. The luminescent efficiency of the o-carborane-based facial complex fac-o shows solvent-molecule dependence both in solution and solid state that is related to the dielectric constant. The water-soluble an…
In order to selectively target malignant cells and eliminate severe side effects of conventional chemotherapy, biocompatible and redox-responsive hollow nanocontainers with tumor specificity were fabricated. The mechanized nanocontainers were achieved by anchoring mechanically interlocked molecules, i.e., [2]rotaxanes…
Polypeptides are fascinating materials with unique properties for various biological materials. We highlight here recent advances in amino acid N-carboxyanhydrides (NCAs) and synthetic polypeptides from the aspects of chemistry, self-assembly and biological applications. New synthetic methodologies, mechanistic studie…
Metal–organic frameworks: The solvothermal reaction of Zn2+ ions and bis- (pyrazolyl)naphthalene diimide readily affords strongly adhering, electroactive metal–organic framework thin films on conductive glass substrates (see picture). Electrochemical cycling of these films followed by in situ UV/Vis spectroscopy revea…
Blue emission at NIR excitation: A strategy, based on energy management in nanostructured materials, is reported for photon upconversion of near-infrared light. Several optical processes can be integrated into a single nanoparticle (see picture). The effect offers upconversion emissions spanning from ultraviolet to th…
The physical and electronic properties of ultrathin two-dimensional (2D) layered nanomaterials are highly related to their thickness. Therefore, the rapid and accurate identification of single- and few- to multilayer nanosheets is essential to their fundamental study and practical applications. Here, a universal optic…
In order to make full utilization of the high intrinsic surface area of graphene, recently, porous graphene materials including graphene nanomesh, crumpled graphene and graphene foam, have attracted tremendous attention and research interest, owing to their exceptional porous structure (high surface area, and high por…
Based on the understanding of material characteristics and interaction between projectile and target, a lightweight hybrid composite armor target consisting of alumina ceramics pellets and ultrahigh molecular weight polyethylene (UHMWPE) was designed and prepared. The target areal density of the armor panel was 7.5 g/…
Glass transition temperature (Tg), an important parameter of polymer, was reported to have great influence on the electro-optical properties of polymer dispersed liquid crystals (PDLCs). In this study, macroinitiators with different Tg were synthesised by reversible addition fragmentation chain transfer polymerisation…
We propose a fast, scalable all-optical design for arbitrary two-qubit operations for defect qubits in diamond (nitrogen-vacancy centers) and in silicon carbide, which are promising candidates for room temperature quantum computing. The interaction between qubits is carried out by microcavity photons. The approach use…
Polyethylene glycol monomethyl ether (mPEG)-co-polyaniline(PANI) is presented and the effect of this low molecular weight copolymer on properties of electrospun fibers obtained from its blends with polycaprolactone (PCL) was investigated. MPEG-co-PANI was synthesized by esterification of mPEG with 4-amino benzoic acid…
Umgarnt und abgelegt: Polyanionische [Arylen]ethinylen-Polymere, die sich helixförmig um einwandige Kohlenstoffnanoröhren (SWNTs) wickeln, ermöglichen die Herstellung von SWNTs mit Löslichkeit in organischen Solventien. Die SWNTs organisieren sich zu Strukturen aus ausgerichteten Nanoröhren, wobei die optoelektronisch…
We have demonstrated that nanowires of various metals, Ge, and Ga 2 O 3 can be grown by high-temperature glancing angle deposition (HT-GLAD). The nanowires of metals including Al, Cu, Ag, Au, Mn, Fe, Co, Ni, and Zn are self-catalyzed, while the nanowires of other materials such as Ge and Ga 2 O 3 are catalyzed by Au n…
Cellulose is a renewable resource that receives attention from researchers due to its potential as a raw material for the production of biofuels and new composite materials. In this study, cellulose extracted from pineapple (Ananas Comosus) leaves was grafted with polymethyl methacrylate in order to prepare a hydropho…
Abstract Homogeneous precipitation from a mixed metal nitrate solution using benzamide as a hydrolysis agent results in the formation of a benzoate‐intercalated layered double hydroxide of nickel and aluminum with a basal spacing of 15.6 Å. The alternation in the line widths of the basal reflections has been shown to…