Deeply penetrating photoacoustic imaging in tumor tissues based on dual-targeted melanin nanoparticle
Botao QU, Qian WANG, Xiaogang NING, Yuxin ZHOU, Ruiping ZHANG
【无机化学学报】doi: 10.11862/CJIC.20230416
A dual-targeting melanin nanoparticle (MNP-TPP-HA) was constructed by grafting the carboxyl groups of hyaluronic acid (HA) and (4-carboxybutyl) triphenylphosphonium bromide (TPP) onto the surface of polyethylene glycol-amino (PEG-NH2) modified MNP based on 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC) and N-hydroxy succinimide (NHS) reaction, endowing melanin with the ability of dual active targeting. The fluorescence imaging of in vitro three-dimensional (3D) tumor models and in vivo photoacoustic imaging (PAI) all reveal the excellent target penetration ability of MNP-TPP-HA.
关键词: dual-targeting, melanin, photoacoustic imaging, penetration ability
综合性高分子化学实验设计:硬质聚氨酯泡沫材料制备与性能表征
杨凯, 毕戈华, 张永, 靳德林, 徐子崴, 王倩, 邢令宝
【大学化学】doi: 10.3866/PKU.DXHX202308045
针对传统“高分子化学实验”课程教学中,存在综合性、研究性实验项目少,不能支撑“新工科”人才实践和创新能力培养要求等问题,开发了硬质聚氨酯泡沫材料制备与性能表征综合实验项目。采用全水发泡体系,通过调节发泡剂和阻燃剂用量,制备了七组聚氨酯泡沫材料,然后采用国标方法表征了材料的表观密度、压缩强度和氧指数,分析了发泡剂和阻燃剂不同配比对泡沫材料性能的影响及原因。本实验贴近高分子产业发展,突出综合性和研究性,教学过程实现了基本实验技能与科学研究方法训练的有机结合,有助于提升高分子化学实验课程“创新性、高阶性和挑战度”,支撑“新工科”人才培养。
关键词: 新工科, 硬质聚氨酯泡沫, 高分子化学实验, 综合实验项目
普洱茶多酚的提取鉴定及其护手霜制备应用创新综合实验教学
杨涛, 段开娇, 李思玉, 魏静, 杨清迪, 王倩
【大学化学】doi: 10.3866/PKU.DXHX202312040
介绍一个大学化学综合创新实验。从普洱茶中提取茶多酚并用于制备护手霜。主要内容包括茶多酚提取、鉴定、抗氧化性评价和护手霜制备。该实验涉及天然产物提取、鉴定、性能评价的操作以及天然产物的应用,满足高校化学类本科生的专业实验教学需求,有利于提高实验操作技能,培养创新能力,激发探索热情。
关键词: 茶多酚, 天然产物, 提取和鉴定, 抗氧化性, 综合创新实验
Synthesis and structures of cdq-topological quaternary and (4, 4, 8)-c topological quinary Zn-MOFs with both oxalic acid and triazole ligands
Jing LIANG, Qian WANG, Junfeng BAI
【无机化学学报】doi: 10.11862/CJIC.20240177
Different solvothermal reactions of ZnC2O4 with oxalic acid (H2ox) and 1, 2, 4-triazole (Htrz) successfully gave a new quaternary (NJTU-Bai83, NJTU-Bai=Nanjing Tech University Bai's group) and a new quinary (NJTU- Bai84) anionic metal-organic frameworks (MOFs), where NJTU-Bai83=(Me2NH2)2[Zn3(trz)2(ox)3]·2H2O and NJTU-Bai84=(Me2NH2)[Zn3(trz)3(ox)2]·H2O, respectively. With the [Zn2(ox)4(trz)2] secondary building unit (SBU) in NJTU- Bai83 replaced by the [Zn3(ox)2(trz)6] and planar [Zn(ox)2(trz)2] ones in NJTU-Bai84, 2D supramolecular building layers (SBLs) are changed from the A-layer and B-layer to another A-layer, while pillars are transformed from the tetrahedral [Zn(ox)2(trz)2] SBU to the irregular tetrahedral [Zn(ox)2(trz)2] and planar [Zn(ox)2(trz)2] SBUs. Thus, cdq-topological quaternary NJTU-Bai83 is tuned to (4, 4, 8)-c new topological quinary NJTU-Bai84. Two MOFs were well characterized by powder X-ray diffraction, thermogravimetric analysis, elemental analysis, etc.
关键词: controlled synthesis, multivariant metal-organic frameworks, pillar-layer typed structures
面向工业烟道气CO2捕获的基于廉价配体金属有机骨架材料的研究进展
江梦珍, 王倩, 白俊峰
【无机化学学报】doi: 10.11862/CJIC.20240355
利用高效绿色材料捕获CO2有助于减少人为向大气中排放CO2。目前,面向工业烟道气CO2捕获的高性能金属有机骨架(MOF)材料的设计与合成研究已步入应用驱使的新阶段。研发和制备具有优越综合性能的CO2捕获MOF材料是一项重要挑战。本综述重点关注面向工业烟道气CO2捕获的基于廉价配体MOF材料的研究现状,总结并讨论了其结构、水/热/化学稳定性、吸附量与选择性、吸附能力受湿气的影响、多轮循环使用性、再生性及宏量制备等性能。
关键词: 廉价配体, 金属有机骨架, CO2捕获, 综合性能

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