在体积三维 (3D) 显示器中使用光致变色材料可以通过表示占据真实物理空间体积的 3D 内容来实现丰富的视觉体验。我们发现,掺杂可见光激活的偶氮-BF2 转换到聚二甲基硅氧烷 (PDMS) 聚合物中可以产生体积光束可寻址画布。使用数字光处理和/或加热(即热反异构化)用红光和蓝光照明对画布进行直接操作,可以生成可调谐、可逆、高对比度和分辨率的图像。这些属性用于设计可重写、固态和手持式体积 3D 光致变色显示器,该显示器可以递归地用于展示静态体积 3D 图像和动态 2D 动画。
在体积三维 (3D) 显示器中使用光致变色材料可以通过表示占据真实物理空间体积的 3D 内容来实现丰富的视觉体验。我们发现,掺杂可见光激活的偶氮-BF2 转换到聚二甲基硅氧烷 (PDMS) 聚合物中可以产生体积光束可寻址画布。使用数字光处理和/或加热(即热反异构化)用红光和蓝光照明对画布进行直接操作,可以生成可调谐、可逆、高对比度和分辨率的图像。这些属性用于设计可重写、固态和手持式体积 3D 光致变色显示器,该显示器可以递归地用于展示静态体积 3D 图像和动态 2D 动画。
of various nitrogenheterocycles, including but not limited to quinolines, isoquinolines, indoles and pyridinium salts, in an aqueous solution of HCO2H/HCO2Na under mild conditions. The catalyst shows excellent functional‐group compatibility and high turnover number (up to 7500), with catalyst loadings as low as 0.01 mol % being feasible. Mechanistic investigation of the quinolinereduction suggests
在温和条件下,显示出环金属化的铱络合物在HCO 2 H / HCO 2 Na的水溶液中催化各种氮杂环的转移加氢反应,包括但不限于喹啉,异喹啉,吲哚和吡啶鎓盐。该催化剂表现出出色的官能团相容性和高周转率(最高7500),催化剂用量低至0.01 mol%是可行的。对喹啉还原反应的机理研究表明,转移氢化反应是通过1,2和1,4加成途径进行的,催化转化受氢化物转移步骤的限制。
A Cationic Micelle as In Vivo Catalyst for Tumor‐Localized Cleavage Chemistry
作者:Chunhong Wang、Hanyu Hong、Mengqi Chen、Zexuan Ding、Yuchen Rui、Jianyuan Qi、Zi‐Chen Li、Zhibo Liu
DOI:10.1002/anie.202106526
日期:2021.9
strategies of accelerating the cleavage reaction in tumors through locally enriching the reactants is promising. Yet, the applications are limited due to the lack of the tumor-selectivity for most of the reactants. Here we explored an alternative approach to leverage the rate constant by locally inducing an in vivo catalyst. We found that the desilylation-induced cleavagechemistry could be catalyzed in vivo
Design and Synthesis of π-Extended Resveratrol Analogues and In Vitro Antioxidant and Anti-Inflammatory Activity Evaluation
作者:Ki Yoon Nam、Kongara Damodar、Yeontaek Lee、Lee Seul Park、Ji Geun Gim、Jae Phil Park、Seong Ho Jeon、Jeong Tae Lee
DOI:10.3390/molecules26030646
日期:——
anti-inflammatory activities of these compounds were investigated. All compounds showed better antioxidant activity than resveratrol in ABTS assay. As for the anti-inflammatory test, 5 and 7 exhibited better activity than resveratrol. It is worth noting that nitrogen substitution on the extended aromatic resveratrol analogues has a significant impact on cell viability. Taking the antioxidant activities and NO
the merits of outstanding selectivity, excellent sensitivity (DL 0.19 μM) and rapid response (20 min). In addition, owing to the high cell permeability and low biotoxicity of probe TP-HNO, it was successfully used for the qualitative and bioimaging of exogenous and endogenous nitroxyl concentration fluctuations in livingcells via a two-photon laser confocal fluorescence microscopy, respectively, which