本文研究了碳化硅(SiC)防晕材料的电致发光现象。对发光亮度波形等的观察表明,SiC 电致发光是由贯穿 SiC 晶体的阻性电流引起的,发光亮度和该电流成正比,属载流子注入发光;SiC 试样体内主要有 N-Al 和 N—B施主—受主对两种复合机制。由...本文研究了碳化硅(SiC)防晕材料的电致发光现象。对发光亮度波形等的观察表明,SiC 电致发光是由贯穿 SiC 晶体的阻性电流引起的,发光亮度和该电流成正比,属载流子注入发光;SiC 试样体内主要有 N-Al 和 N—B施主—受主对两种复合机制。由于 SiC 试样含杂质浓度较高,从发光光谱可以得知 SiC 禁带中存在杂质能带。本文最后提出了 SiC 防晕材料电致发光机理,用它解释了由发光亮度衰减波形和亮度—频率关系曲线测得的两个不同的电子寿命值。展开更多
The formation of protein coronas on nanomaterial will significantly alter the surface properties of nanomaterial in biological systems and subsequently impact biological responses including signaling, cellular uptake,...The formation of protein coronas on nanomaterial will significantly alter the surface properties of nanomaterial in biological systems and subsequently impact biological responses including signaling, cellular uptake, transport, and toxicity etc. It is of critical importance to understand the formation of protein coronas on the surface of nanomaterial. Analytical techniques, especially mass spectrometry-based proteomics methods, are playing a key role for the qualitative and quantitative analyses of protein coronas on nanomaterial. In this review, the proteomic approaches developed for the characterization of protein coronas on various nanomaterials are introduced with the emphasis on the mass spectrometry-based proteomic strategies.展开更多
文摘本文研究了碳化硅(SiC)防晕材料的电致发光现象。对发光亮度波形等的观察表明,SiC 电致发光是由贯穿 SiC 晶体的阻性电流引起的,发光亮度和该电流成正比,属载流子注入发光;SiC 试样体内主要有 N-Al 和 N—B施主—受主对两种复合机制。由于 SiC 试样含杂质浓度较高,从发光光谱可以得知 SiC 禁带中存在杂质能带。本文最后提出了 SiC 防晕材料电致发光机理,用它解释了由发光亮度衰减波形和亮度—频率关系曲线测得的两个不同的电子寿命值。
基金supported by the National Natural Science Foundation of China(21175134,21375125)the Creative Research Group Project of National Natural Science Foundation of China(21321064)
文摘The formation of protein coronas on nanomaterial will significantly alter the surface properties of nanomaterial in biological systems and subsequently impact biological responses including signaling, cellular uptake, transport, and toxicity etc. It is of critical importance to understand the formation of protein coronas on the surface of nanomaterial. Analytical techniques, especially mass spectrometry-based proteomics methods, are playing a key role for the qualitative and quantitative analyses of protein coronas on nanomaterial. In this review, the proteomic approaches developed for the characterization of protein coronas on various nanomaterials are introduced with the emphasis on the mass spectrometry-based proteomic strategies.
