Photomanipulated Architecture and Patterning of Azopolymer Array

Here reported is the approach to prepare the tunable 3D architecture and patterning through photoinduced orientation of azopolymer. The hemispherical PAzoMA array can be transformed into spindlelike, flat ellipsoidlike, thick spindlelike, near-hexagon, near-quadrangle, and near-rhombus arrays while being exposed to linearly polarized light (LPL). The size and alignment of the arrays can be precisely controlled by manipulating the irradiation time. Furthermore, complex 3D architectures of the PAzoMA array are readily fabricated through secondary irradiation along different direction. This technique is promising for functionalized surfaces and photonic devices

Light-Driven Transformation of Bio-Inspired Superhydrophobic Structure via Reconfigurable PAzoMA Microarrays: From Lotus Leaf to Rice Leaf

Light-driven transformation from isotropic superhydrophobicity to anisotropic superhydrophobicity was accomplished through bio-inspired modification and reconfiguration on poly­[6-(4-methoxy-4′-oxyazobenzene)­hexyl methacrylate] (PAzoMA) microarrays. In this study, ordered PAzoMA microarray film was fabricated via the reverse breath figure (RBF) method. After gold nanoparticles sputtering and subsequent modification with self-assembly of 1<i>H</i>,1<i>H</i>,2<i>H</i>,2<i>H</i>-perfluoro­decanethiol (FSH), the obtained lotus-leaf-inspired film showed isotropic superhydrophobicity with self-cleaning property due to the hierarchical structure and low surface free energy. Upon irradiation with linearly polarized light (LPL), the microspheres were elongated along the direction of polarization and exhibited anisotropic superhydrophobicity resembling rice leaf. With the increase of illumination time, the axis ratio became larger, and anisotropy sliding was more obvious. This research enriches responsive bio-inspired superhydrophobicity and further provides a promising candidate for smart water harvesting

Inhibitory effects of Shixiao San and its exracts on the production of intracellular ROS.

<p>EA.hy926 cells were exposed to Ox-LDL of 100 μg/mL, and then treated with different samples for another 12 hours. All of the data are expressed as the means ± S.D (<i>n</i> = 6). * <i>P</i> < 0.01, compared with the model group.</p

The representative total ion chromatograms of the BuOH fraction (A) and the reference standards (B) in negative mode.

<p>(1) 3,3’-methyl quercetin-4’-glucoside, (2) kaempferol-3-O-glucoside/ kaempferol-3-O-galactoside, (3) quercetin-3-O-(2^G-α-l-rhamnosyl)-rutinoside, (4) quercetin-3-O-neohesperidoside, (5) kaempferol-3-O-glucoside/ kaempferol-3-O-galactoside, (6) kaempferol-3-O-(2^G-α-l-rhamnosyl)-rutinoside, (7) isorhamnetin-3-O-(2^G-α-l-rhamnosyl)- rutinoside, (8) kaempferol-3-O-neohesperidoside, (9) isorhamnetin-3-O-neohesperidoside, (10) isorhamnetin-3-O-rutinoside, (11) 5,8-dimethoxy-7-hydroxyflavanone, (12) quercetin-3-O-glucoside, (13) quercetin-3,3’-dimethylether.</p

The schematic to disclose the damage mechanism of Ox-LDL (red) and the therapeutic mechanism of Shixiao San and active ingredients (blue) in molecular level.

<p>The schematic to disclose the damage mechanism of Ox-LDL (red) and the therapeutic mechanism of Shixiao San and active ingredients (blue) in molecular level.</p

List of the retention time and MS data (m/z) for each analyte identified in the BuOH fraction.

<p>List of the retention time and MS data (m/z) for each analyte identified in the BuOH fraction.</p

The level of eNOS (A), ET-1 (B), PGE2 (C) and sICAM-1 (D) in the medium with ELISA.

<p>EA.hy926 cells were exposed to Ox-LDL of 100 μg/mL, and then treated with different samples for another 12 hours. All of the data are expressed as the means ± S.D (<i>n</i> = 6). *<i>P</i> < 0.05, ** <i>p</i> < 0.01, compared with the model group.</p

Photoguided Shape Deformation of Azobenzene-Containing Polymer Microparticles

Here we present the generation of uniform microparticles with tunable diameters from azobenzene-based homopolymer by combining the microfluidics technique and emulsion-solvent evaporation route. In addition, the photoinduced deformation behavior of these microspheres, irradiated by a linearly polarized beam with different irradiation time and direction, are systemically studied. The deformation process through real time optical microscope observation can be investigated, benefiting from the uniform and microscaled size of the polymer particles. These results indicate that the deformation degree characterized by relative variation of the long axial for the particles can be controlled by the irradiation time. Moreover, elongated particles with tunable aspect ratio or tilted shape can be generated by manipulating the irradiation direction and/or time. Interestingly, the shape transformation kinetics displays a significant dependence on initial size of the polymer particle. In addition, the shape transformation of the polymer particle can lead to the variation of the orientation and distribution of the encapsulated anisotropic gold nanorods