Electrochemical Scanning TUnneling Microscopy (ECSTM) has been extended to characterizc polycrystalline silver electrode surfaces in iodide solution. Potential-dependcnt ordered and disordered structures of the silver...Electrochemical Scanning TUnneling Microscopy (ECSTM) has been extended to characterizc polycrystalline silver electrode surfaces in iodide solution. Potential-dependcnt ordered and disordered structures of the silver electrode as well as the iodine adsorption layer have been obscrved to coexist on polycrystalline silver electrode surfaces, for the first time. A very special column arrangement of the iodine adsorption layer, similar to the so called "ndssing row" type of structure has been obseryed. Some columns of the iodine adsorption layer roll over from one place to another along with the time and changing potential. A proposed model has been given to better describe the structure. The highly corrugated and loose surface structure of the polycrystalline surface are responsible for this special phenomenon.展开更多
2023年3月2日,浙江大学医学院张岩教授团队联合山东大学于晓、孙金鹏、冯世庆教授团队在《科学》(Science)发表了最新的研究成果“Unsaturated bond recognition leads to biased signal in a fatty acid receptor”(DOI:10.1126/scienc...2023年3月2日,浙江大学医学院张岩教授团队联合山东大学于晓、孙金鹏、冯世庆教授团队在《科学》(Science)发表了最新的研究成果“Unsaturated bond recognition leads to biased signal in a fatty acid receptor”(DOI:10.1126/science.add6220),成功从原子分辨率水平解析了脂肪酸受体GPR120形成信号转导复合物的精细三维结构,揭示了不同脂肪酸引发GPR120产生下游特定信号谱图的机制。展开更多
文摘Electrochemical Scanning TUnneling Microscopy (ECSTM) has been extended to characterizc polycrystalline silver electrode surfaces in iodide solution. Potential-dependcnt ordered and disordered structures of the silver electrode as well as the iodine adsorption layer have been obscrved to coexist on polycrystalline silver electrode surfaces, for the first time. A very special column arrangement of the iodine adsorption layer, similar to the so called "ndssing row" type of structure has been obseryed. Some columns of the iodine adsorption layer roll over from one place to another along with the time and changing potential. A proposed model has been given to better describe the structure. The highly corrugated and loose surface structure of the polycrystalline surface are responsible for this special phenomenon.
文摘2023年3月2日,浙江大学医学院张岩教授团队联合山东大学于晓、孙金鹏、冯世庆教授团队在《科学》(Science)发表了最新的研究成果“Unsaturated bond recognition leads to biased signal in a fatty acid receptor”(DOI:10.1126/science.add6220),成功从原子分辨率水平解析了脂肪酸受体GPR120形成信号转导复合物的精细三维结构,揭示了不同脂肪酸引发GPR120产生下游特定信号谱图的机制。
