Reversible nanohelix transformation is one of the most exquisite and important phenomena in nature. Nanomaterials rarely form helical crystals. Due to the irreversibility of the previously studied twisting forces, untwisting is harder than retwisting crystalline nanohelices. Thus, many reversible twisting transformations between two stable crystalline products are exceedingly rare and need a sensitive energy balance. This reversible transformation of nanohelices has long been considered difficult to achieve.
In a study published in Advanced Energy Materials, a research team led by Prof. ZHANG Yunxia from Hefei Institutes of Physical Science (HFIPS), Chinese Academy of Sciences (CAS) developed a solid-phase sintering strategy to enable direct conversion of the degraded LiCoO2 (D-LCO) into the cathode materials with high energy density.
A team led by Prof. WANG Guozhong and ZHOU Hongjian from the Institute of Solid State Physics (ISSP), Hefei Institutes of Physical Science (HFIPS) of the Chinese Academy of Sciences (CAS) has successfully utilized surface roughness engineering of silicon-based nanomaterials to achieve efficient delivery of essential nutrients to crop leaves.
Recently, a research group led by Prof. CHU Yannan at the Institute of Health and Medical Technology (IHMT), Hefei Institutes of Physical Science (HFIPS) of Chinese Academy of Science (CAS) adopted the untargeted analytical method of headspace-solid phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS) to detect volatile organic compounds (VOCs) in rat organs, and obtained the biological information of VOCs metabolized by related organs.
The first geosynchronous orbit radar satellite Land Exploration-4 01 was launched on Aug. 13. Together with it was the high-performance metallic damping components made of twin type damping alloy, which was made by scientists from Institute of Solid State Physics (ISSP), Hefei Institutes of Physical Science (HFIPS), Chinese academy of sciences (CAS).