Direct Interaction Between Gold Nanorods and Glucose

In this work, we present the results of the study on the interactions between gold nanorods (GNRs) and glucose. The optical properties of GNRs have higher sensitivity to glucose compared with that of gold nanospheres. The long-wavelength bands of the GNRs obviously decrease as the concentration of glucose increases. At high glucose concentrations, the absorption peak in long-wavelength bands almost disappears, and the absorption intensities corresponding to the transverse plasmon band are also decrease. These results suggest that glucose could seriously affect the optical properties of GNRs. A possible interaction mechanism between gold nanorods (GNRs) and glucose has been proposed. Furthermore, the influence of glucose on different amount GNRs also has been studied

Monodisperse Hollow Tricolor Pigment Particles for Electronic Paper

A general approach has been designed to blue, green, and red pigments by metal ions doping hollow TiO 2. The reaction involves initial formation of PS at TiO2 core–shell nanoparticles via a mixed-solvent method, and then mixing with metal ions solution containing PEG, followed calcining in the atmosphere. The as-prepared hollow pigments exhibit uniform size, bright color, and tunable density, which are fit for electronic paper display

Synthesis and Application of Carbon–Iron Oxide Microspheres’ Black Pigments in Electrophoretic Displays

Carbon–iron oxide microspheres’ black pigments (CIOMBs) had been prepared via ultrasonic spray pyrolysis of aqueous solutions containing ferrous chloride and glucose. Due to the presence of carbon, CIOMBs not only exhibited remarkably acid resistance, but also could be well dispersed in both polar solvents and nonpolar solvent. Finally, dispersions of hollow CIOMBs in tetrachloroethylene had successfully been applied in electrophoretic displays

Synthesis of Aqueous CdTe/CdS/ZnS Core/shell/shell Quantum Dots by a Chemical Aerosol Flow Method

This work described a continuous method to synthesize CdTe/CdS/ZnS core/shell/shell quantum dots. In an integrated system by flawlessly combining the chemical aerosol flow system working at high temperature (200–300°C) to generate CdTe/CdS intermediate products and an additional heat-up setup at relatively low temperature to overcoat the ZnS shells, the CdTe/CdS/ZnS multishell structures were realized. The as-synthesized CdTe/CdS/ZnS core/shell/shell quantum dots are characterized by photoluminescence spectra, X-ray diffraction (XRD), energy-dispersive X-ray spectra (EDS), transmission electron microscopy (TEM), and high-resolution transmission electron microscopy (HRTEM). Fluorescence and XRD results confirm that the obtained quantum dots have a core/shell/shell structure. It shows the highest quantum yield above 45% when compared to the rhodamine 6G. The core/shell/shell QDs were more stable via the oxidation experiment by H2O2

Fabrication of Carbohydrate-Conjugated Fingerprintlike Mesoporous Silica Net for the Targeted Capture of Bacteria

Herein, a rapid, straightforward, reliable, and low-cost strategy for targeted capture and detection of bacteria using carbohydrate-conjugated mesoporous silica structure was developed. Fingerprint-like mesoporous silica net (FMSN) with well-defined three-dimensional architecture and ordered morphology was first facilely synthesized by the aid of tetrabutylammonium iodine (TBAI) as cotemplates with cetyltrimethylammonium bromide (CTAB). When conjugated with maltoheptaose as targeting moiety, FMSN showed efficient and selective capturing capability of <i>Staphylococcus epidermidis</i>. This new and unique platform for capturing <i>S. epidermidis</i> is fast (within 18 min), high efficiency (greater than 98.6% from 1 × 10³ CFU/mL to 1 × 10⁸ CFU/mL), specific (compared to <i>M. smegmatis</i> mc² 155), and reusable (6 cycles)

BSA Protein-Mediated Synthesis of Hollow Mesoporous Silica Nanotubes, and Their Carbohydrate Conjugates for Targeting Cancer Cells and Detecting Mycobacteria

A straightforward method was developed to synthesize hollow mesoporous silica nanotubes (HMSNTs) using bovine serum protein (BSA) as the protective coating and phosphate buffered saline (PBS) as the etching agent at room temperature. Galactose-grafted HMSNTs significantly reduced phagocytosis by macrophages, and enhanced cellular uptake by A549 cells via caveolae-mediated uptake pathway. Trehalose-conjugated HMSNTs interacted strongly with mycobacteria, showing the linear detection range from 1 × 10⁴ to 1 × 10⁸ bacteria/mL and the detection limit of 1 × 10³ bacteria/mL. In all cases, the hollow nanotube structure showed higher cellular uptake, bacterial binding, and detection efficiency than their spherical counterpart

Fabrication of Fast-Absorbing and Quick-Drying Wool Fabrics with Good Washing Durability

The quick and the dry: Fast-absorbing and quick-drying wool fabrics with good washing durability are fabricated by functionalizing reactive siloxane monolayer on wool fiber surface, followed by grafting an ultrathin silica nanoparticles layer using an in situ growth method. The new properties are maintained even after washing 20 times because of the strong immobilization between the wool fiber and the ultrathin silica nanoparticles through siloxane bonding.Institute of Textiles and Clothin