Materials Literature
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Association of cellular influences and physical and chemical properties were examined for 24 kinds of industrial metal oxide nanoparticles: ZnO, CuO, NiO, Sb(2)O(3), CoO, MoO(3), Y(2)O(3), MgO, Gd(2)O(3), SnO(2), WO(3), ZrO(2), Fe(2)O(3), TiO(2), CeO(2), Al(2)O(3), Bi(2)O(3), La(2)O(3), ITO, and cobalt blue pigments.…
We developed a facile template-free solid state synthesis route, by which BN hollow spheres (BNHSs) with ultrathin shells (1–3 nm) were successfully prepared. Furthermore, the shell thickness of the BNHSs could be effectively adjusted by varying the reaction temperature. The as-prepared BNHSs with ultrathin shells pos…
Upconversion nanoparticles (UCNPs) have attracted much attention as potential photosensitizer carriers for photodynamic therapy (PDT) in deep tissues. In this study, hydrophilic UCNPs were prepared by coating amphiphilic chitosan (N-succinyl-N′-octyl chitosan, SOC) on the surface of hydrophobic oleic acid-capped NaYF4…
The shifting and non-shifting fluorescence at varied excitations are observed on carbon nanodots prepared by electro-oxidizing carbon paste electrodes with different compositions. The emissions are proposed to be mainly attributed to the surface states rising from surface oxidation of carbon nanodots.
Herein, we demonstrate that reduction of graphene oxide (GO) could be implemented by γ-ray irradiation in alcohol/water in the absence of oxygen. The resultant reduced GO (RGO) appears highly reduced and possesses high purity through UV-Vis, XPS, FT-IR spectra and elemental analysis. We speculate that production of re…
Reduced-graphene oxide/molybdenum oxide/polyaniline ternary composites, RGO(MP), for use as electrode materials for high energy density supercapacitors, were firstly synthesized using a one-step method with Mo3O10(C6H8N)2·2H2O and graphene oxide (GO) as precursors. When the mass ratio of Mo3O10(C6H8N)2·2H2O to GO is 8…
We present a one-pot synthesis of dual nitrogen/sulfur doped materials which is based on sustainable carbohydrate and amino acid precursors and enables tailoring of the final material’s physicochemical properties.
Simplified silica (Zeosil 1165 MP) – SBR (140k carrying silanol end-groups) nanocomposites have been formulated by mixing of a reduced number of ingredients with respect to industrial applications. The thermo-mechanical history of the samples during the mixing process was monitored and adjusted to identical final temp…
Polyaniline nanofibers (PANINFs) have been facilely prepared by electrochemical polymerization of aniline monomers in acidic aqueous media without using any templates and surfactants. The subsequent treatment of such nanofibers with a AgNO3 aqueous solution leads to in situ chemical reduction of Ag+ on them to form Ag…
This present work highlights the successful preparation of the ternary series of (Mg/Al + Fe)-CO3 layered double hydroxides with a constant ratio of Mg/(Al + Fe) = 2 : 1 and their application for photocatalytic hydrogen generation from water. At Mg/(Al + Fe) = 2 : 1, the Al : Fe ratio was varied from 1 : 4 to lower th…
Chemically derivatized graphene/poly(vinyl alcohol) (PVA) nanocomposites were successfully fabricated by combination of solution processing and compression molding. SEM imaging combined with XRD measurements revealed that graphene platelets were fully incorporated into the polymer matrix after their chemical modificat…
A multifunctional gold nanorod (GNR)-based nanoplatform for targeted anticancer drug delivery and positron emission tomography (PET) imaging of tumors was developed and characterized. An anti-cancer drug (i.e., doxorubicin (DOX)) was covalently conjugated onto PEGylated (PEG: polyethylene glycol) GNR nanocarriers via…
Reduction of H 2 O and CO 2 as well as oxidation of H 2 and CO was studied in a Ni/YSZ electrode supported Solid Oxide Cell (SOC) produced at DTU Energy conversion (former Risø DTU).Even though these Ni/YSZ based SOCs were developed and optimized for fuel cell use, they can work as reversible SOCs in mixtures of H 2 O…
A triangular Dy(III) single-molecule magnet (SMM) exhibiting ferroelectric bistability is assembled in an acentric space group Pna21. Hysteresis loops associated with its SMM behavior together with a two-step slow relaxation of the magnetization are observed below 30 K. A transition with dielectric anomalies between a…
Long, ordered and needle-like polyaniline (PANI) nanowires were grown on graphitized electrospun carbon fibers (GECFs) to prepare PANI/GECF composite cloths as electrode material for supercapacitors. The flexible PANI/GECF composite cloths showed three-dimensional (3D) hierarchical micro/nano-architecture and were dir…
The effect of polymer-graft modification on the structure formation and mechanical characteristics of inorganic (silica) nanoparticle solids is evaluated as a function of the degree of polymerization of surface-grafted chains. A transition from ‘hard-sphere-like’ to ‘polymer-like’ mechanical characteristics of particl…
Fluorescent gold and silver nanoclusters are interesting sensing materials because of their molecule-like optical properties, easy preparation, and biocompatibility. In this review, we highlight the chemical and optical properties of fluorescent gold and silver nanoclusters, as well as their preparation and applicatio…
In case of food packaging applications, high oxygen and water vapour barriers are the prerequisite conditions for preserving the quality of the products throughout their whole lifecycle. Currently available polymers and/or biopolymer films are mostly used in combination with barrier materials derived from oil based pl…
The procedures for the synthesis of polypyrrole (PPy) doped with anionic spherical polyelectrolyte brushes (ASPB) (PPy/ASPB nanocomposite) by means of in situ chemical oxidative polymerization were presented. Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopic analysis suggested the bonding structur…
Graphene oxide/carbon nanotube (GO/CNT) hybrid films are self-assembled on a Ti substrate via simple casting of aqueous dispersion. The amphiphilic nature of graphene oxide sheets allows adsorption of CNTs onto their surface in water, capable of forming a highly stable dispersion. Binder-free electrodes are prepared u…