作者:Stone, Richard
摘要:Nation appears to have upgraded its bombmaking capacity, experts say
作者:Aczel, Miriam R.
作者单位:University of California System; University of California Berkeley
作者:Song, Yan; Fang, Shiqi; Xu, Ning; Wang, Monong; Chen, Shuying; Chen, Jun; Mi, Baoxia; Zhu, Jia
作者单位:Nanjing University; Collaborative Innovation Center of Advanced Microstructures (CICAM); University of California System; University of California Berkeley; Nanjing University; Nanjing University
摘要:Lithium mining is energy intensive and environmentally costly. This is because lithium ions are typically present in brines as a minor component mixed with physiochemically similar cations that are difficult to separate. Inspired by nature's ability to selectively extract species in transpiration, we report a solar transpiration-powered lithium extraction and storage (STLES) device that can extract and store lithium from brines using natural sunlight. Specifically, the device uses a hierarchic...
作者:Khadakkar, Suvarna
作者单位:Indian Institute of Science (IISC) - Bangalore
作者:Liang, Yu; Shao, Shuai; Li, Xin Yu; Zhao, Zi Xin; Liu, Ning; Liu, Zhao Ming; Shen, Fu Jie; Zhang, Hao; Hou, Jun Wei; Zhang, Xue Feng; Jin, Yu Qin; Du, Li Fang; Li, Xin; Zhang, Jing; Su, Ji Guo; Li, Qi Ming
摘要:The respiratory syncytial virus (RSV) fusion (F) glycoprotein is highly immunogenic in its prefusion (pre-F) conformation. However, the protein is unstable, and its conformation must be stabilized for it to function effectively as an immunogen in vaccines. We present a mutagenesis strategy to arrest the RSV F protein in its pre-F state by blocking localized changes in protein structure that accompany large-scale conformational rearrangements. We generated a series of mutants and screened them ...