Results 61 to 70 of about 1,353,361 (169)
本发明是一种可用做甲醇和湿度传感器敏感材料的新型金属有机骨架化合物材料。采用溶剂热合成法制备了新型的金属有机骨架化合物 (H3O)Li3(C8H4O4)2·n(H2O)(n=1.4~6.4)。作为初步的传感性能研究,应用石英晶体微天平(QCM)的方法评价了该材料对于一系列溶剂分子的传感性能,发现在常温常压的条件下对不同浓度的甲醇和水有响应规律,且灵敏度高,选择性好,性能稳定,易再生。这类金属有机骨架化合物的选择性对甲醇和水的传感机理是因为晶体结构内部有一维的立方孔道,可以容纳体积较小的溶剂分子 ...
刘颖雅 +6 more
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ABSTRACT Lung cancer remains a major cause of cancer‐related mortality worldwide, and non‐small cell lung cancer (NSCLC) accounts for the largest proportion of diagnosed lung cancer cases. Exosomal programmed death‐ligand 1 (PD‐L1) has attracted increasing attention as a potential liquid‐biopsy biomarker associated with tumor immune regulation; however,
Chen Su +6 more
wiley +1 more source
2 0 0 0年 12月在武汉东湖采集了 5个表层沉积物样品 ,采用气 -质联用分析了其中的有机污染物 ,以探讨东湖沉积物受有机物污染的程度 .共检出有机物 180种 ,其中环境优先控制污染物和美国EPA筛选的内分泌干扰物 35种 .有机污染严重程度为 :水果湖区 >郭郑湖南湖区 >郭郑湖北湖区
王海,王春霞,陈伟,吴文忠,王子健
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ABSTRACT Spent automotive exhaust catalysts represent the largest secondary resource of palladium (Pd), and their efficient recovery is essential to support the sustainability of Pd‐related industries. Inspired by supramolecular chemistry, a novel calixarene derivative, 5,11,17,23‐tetra‐tert‐butyl‐25,27‐bis[(N′‐hydroxyacetimidamide)ethoxy]‐26,28 ...
Tao Ge +8 more
wiley +1 more source
本发明涉及一种金属有机化合物传感材料及其制备和应用,金属有机化合物是由锂盐和1,4-萘二甲酸配位形成的金属有机骨架化合物,是由二维的层状结构堆积成的无线扩展的三维结构,属于P2(1)/c空间群,是单斜晶系;其结构式为Li2(1,4-ndc)(DMF),该晶体的分子式为C15H13Li2NO5,锂的配位是一个扭曲的四面体构型;该化合物的溶剂可达的空自由体积占总体积的3.9%。本发明制得的材料具有良好的溶剂分子及二氧化碳传感性能,在常温常压的条件下对不同浓度的溶剂分子及二氧化碳有响应规律,且灵敏度高 ...
徐芬 +4 more
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ABSTRACT Gram‐negative (G−) bacterial infections, fueled by intrinsic antibiotic resistance stemming from their unique outer membrane architecture, pose a critical global clinical challenge. This study introduces a pioneering dual‐enzyme‐mimetic nanotherapy based on NaYbF4 nanoparticles (NaYbF4 NPs) that achieves synergistic antibacterial and anti ...
Yuxiang Zhang +6 more
wiley +1 more source
本发明涉及硝基苯类化合物的氧化去除,具体地说是一种湿式氧化法处理硝基苯类有机污染物的方法;在高压反应釜中,于液相体系中,在高温高压条件下,以氧气或空气为氧化剂,加入共氧化物质,氧化去除有机污染物;共氧化物质与被处理的有机污染物的质量浓度比为0.1~20,反应温度为130~325℃,压力为0.5MPa~20MPa,其中氧分压为0.2MPa~10MPa。本发明的优点为:成本低;适用范围广;环境友好 ...
付冬梅, 梁鑫淼, 陈吉平
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ABSTRACT The pollution caused by antibiotics to aquatic ecosystems is becoming increasingly serious, thus more effective treatment methods are urgently required. Although the photocatalytic degradation behavior of tetracycline (TC) is relatively well understood, sulfamethoxazole (SMZ), an emerging pollutant originating from large‐scale livestock ...
Yihang Yang +6 more
wiley +1 more source
本发明涉及有机氯代污染物的降解方法,具体的说一种高效降解持久性有机卤代污染物的加氢脱卤方法。具体地说,本发明反应体系为有机-水两相溶剂体系,是持久性有机氯代污染物在常温、常压下加氢脱氯,采用过渡金属做催化剂,该类催化剂由活性组分与载体组成。活性组分为:Pd、Rh、Ru、Pt、Ni、Fe、Co、Ir中的一种或多种,活性组分占催化剂质量分数的0.5%~5.0%。反应压力为常压,反应温度控制在30~55℃。本发明制备简单,不需要特殊设备。脱卤反应条件温和,操作易于控制,催化剂用量少 ...
薛朋 +6 more
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ABSTRACT Biomass‐based hydrogels are widely regarded as ideal substrates for self‐powered wearable sensors. However, the practical applications of hydrogels are commonly limited by their inherent low strength and toughness, which restrict their capacity to withstand repeated stretching, bending and other mechanical loads arising from human motion in ...
Boyu Du +9 more
wiley +1 more source

