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| 1 | Reverse micelles extraction ofnattokinase:From model system to real system显示文摘Nattokinase is a novel fibrinolytic en- zyme, which is homologous to Subtilisin Carlsberg. In this paper, Subtilisin Carlsberg was taken as a model protein of nattokinase. Effects of pH, ionic strength, concentration of isopropanol on the extraction of Subtilisin Carlsberg with AOT/isooctane reverse mi- celles system were investigated. Further, the process of reverse micelles extraction of nattokinase from fermentation broth was studied. By taking the reverse micelles of AOT/isooctane as extractant to perform a full extraction cycle, it was found that about eighty percent of the total activity of nattokinase in the fer- mentation broth could be recovered and the purifica- tion factor was about 2.5. Homologous protein could be reasonably used as model protein of a target protein. | LIU Junguo XING Jianmin CHANG Tianshi LIU Huizhou | 2006 | Chinese Science Bulletin2006，51，7： | 4 |
| 2 | Optimization of nutritional conditions for nattokinase production by Bacillus natto NLSSE using statistical experimental methods显示文摘 | Junguo Liu Jianmin Xing Tianshi Chang | 2005 | Process Biochemistry2005，40，8： | 1 |
| 3 | Optimization of nutritional conditions for nattokinasc production by Bacillus natto NLSSE using statistical experimental methods显示文摘 | LIU Junguo XING Jianmin CHANG Tianshi | 2005 | Process Biochemistry2005，40，8： | 1 |
| 4 | One-Dimensional(NH=CINH_(3))_(3)PbI_(5)Perovskite for Ultralow Power Consumption Resistive Memory显示文摘Organic-inorganic hybrid perovskites(OIHPs)have proven to be promising active layers for nonvolatile memories because of their rich abundance in earth,mobile ions,and adjustable dimensions.However,there is a lack of investigation on controllable fabrication and storage properties of one-dimensional(1D)OIHPs.Here,the growth of 1D(NH=CINH_(3))_(3)PbI_(5)((IFA)_(3)PbI_(5))perovskite and related resistive memory properties are reported.The solution-processed 1D(IFA)_(3)PbI_(5)crystals are of welldefined monoclinic crystal phase and needle-like shape with the length of about 6 mm.They exhibit a wide bandgap of 3 eV and a high decomposition temperature of 206℃.Moreover,the(IFA)_(3)PbI_(5)films with good uniformity and crystallization were obtained using a dual solvent of N,N-dimethylformamide(DMF)and dimethyl sulfoxide(DMSO).To study the intrinsic electric properties of this anisotropic material,we constructed the simplest memory cell composed of only Au/(IFA)_(3)PbI_(5)/ITO,contributing to a high-compacted device with a crossbar array device configuration.The resistive random access memory(ReRAM)devices exhibit bipolar current-voltage(I-V)hysteresis characteristics,showing a record-low power consumption of~0.2 mW among all OIHP-based memristors.Moreover,our devices own the lowest power consumption and“set”voltage(0.2 V)among the simplest perovskite-based memory devices(inorganic ones are also included),which are no need to require double metal electrodes or any additional insulating layer.They also demonstrate repeatable resistance switching behaviour and excellent retention time.We envision that 1D OIHPs can enrich the low-dimensional hybrid perovskite library and bring new functions to low-power information devices in the fields of memory and other electronics applications. | Xuefen Song Hao Yin Qing Chang Yuchi Qian Chongguang Lyu Huihua Min Xinrong Zong Chao Liu Yinyu Fang Zhengchun Cheng Tianshi Qin Wei Huang Lin Wang | 2021 | Research2021，，1： | 0 |
| 5 | Hole-Transporting Low-Dimensional Perovskite for EnhancingPhotovoltaic Performance显示文摘Halide perovskites with low-dimensionalities(2D or quasi-2D)have demonstrated outstanding stabilities compared to their 3D counterparts.Nevertheless,poor charge-transporting abilities of organic components in 2D perovskites lead to relatively low power conversion efficiency(PCE)and thus limit their applications in photovoltaics.Here,we report a novel hole-transporting low-dimensional(HT2D)perovskite,which can form a hole-transporting channel on the top surface of 3D perovskite due to self-assembly effects of metal halide frameworks.This HT2D perovskite can significantly reduce interface trap densities and enhance hole-extracting abilities of a heterojunction region between the 3D perovskite and hole-transporting layer.Furthermore,the posttreatment by HT2D can also reduce the crystal defects of perovskite and improve film morphology.As a result,perovskite solar cells(PSCs)can effectively suppress nonradiative recombination,leading to an increasement on photovoltage to>1.20 V and thus achieving>20%power conversion efficiency and>500 h continuous illumination stability.This work provides a pathway to overcome charge-transporting limitations in low-dimensional perovskites and delivers significant enhancements on performance of PSCs. | Fangfang Wang Qing Chang Yikai Yun Sizhou Liu You Liu Jungan Wang Yinyu Fang Zhengchun Cheng Shanglei Feng Lifeng Yang Yingguo Yang Wei Huang Tianshi Qin | 2021 | Research2021，，1： | 0 |
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