摘要：As an im portant branch of fiber-shaped energy storage devices, the fiber-shaped supercapacitor has been widely studied recently. However, it remains challenging to simultaneously achieve fast electron transport and excellent ion accessibility in one single fiber electrode of the fibershaped supercapacitor. Herein, a novel family of amphiphilic core-sheath structured carbon nanotube composite fibers has been developed and applied to the fiber-shaped supercapacitor to address the above challenge. The polyaniline-modified hydrophilic sheath of the composite fiber electrode effectively enhanced the electrochemical property via advancing ion accessibility, while Au-deposited hydrophobic core demonstrated improved electrical conductivity by fast electron supply. On the basis of a synergistic effect, a remarkable specific capacitance of 324 F cm^-3 at 0.5 A cm^-3 and greatly enhanced rate performance were achieved, i.e” a 79% retention (256 F cm 3) at 50 A cm^-3. The obtained fiber-shaped supercapacitor finally displayed remarkable energy and power densities of 7.2 mW h cm 3 and 10 W cm^-3, respectively. The strategy developed herein also presents a general pathway towards novel fiber electrodes for high-performance wearable devices.

摘要：柔性高效Ⅲ-Ⅴ族多结太阳电池正在被开发、应用于无人机、可穿戴设备和空间能源等领域.采用MOCVD技术在Ga As衬底上制备太阳电池外延层,之后通过低温键合和外延层剥离方法将外延层转移到柔性衬底上.通过外延层剥离设备设计和大量参数优化实验,实现了GaAs太阳电池结构从四英寸砷化镓晶圆上的有效分离,且不产生缺陷并保持原有的性能.近期,在50μm聚酰亚胺薄膜上制备的30 cm^2大面积柔性GaInP/Ga As/InGaAs三结太阳电池实现了31. 5%的转换效率(AM0光谱),其中开路电压3. 01 V,短路电流密度16. 8 mA/cm^2,填充因子0. 845.由于采用了轻质的聚酰亚胺材料,所得到的柔性太阳电池面密度仅为168. 5 g/m^2,比功率高达2 530 W/kg.

摘要：In this work, a bimetallic zeolitic imidazolate framework （ZIF） CoZn-ZIF was synthesized via a facile sol-vothermal approach and applied in lithiumion batteries. The as-prepared CoZn-ZIF shows a high reversible capacity of 605.8 mA b g-i at a current density of 100 mA g^-1, far beyond the performance of the corresponding monometallic Co-ZIF- 67 and Zn-ZIF-8. Ex-situ synchrotron soft X-ray absorption spectroscopy, X-ray diffraction, and electron paramagnetic resonance techniques were employed to explore the Li^storage mechanism. The superior performance of CoZn-ZIF over Co-ZIF-67 and Zn-ZIF-8 could be mainly attributed to lithiation and delithiation of nitrogen atoms, accompanied by the breakage and recoordination of metal nitrogen bond. Morever, a few metal nitrogen bonds without recoordination will lead to the amorphization of CoZn-ZIF and the formation of few nitrogen radicals.

摘要：We describe the fabrication of metal nanogaps of sub-20nm in feature size using the proximity effect in electron beam lithography （EBL）. The proximity effect is extended to develop a flexible and practical method for preparing metal （e. g. Au or Ag） nanogaps and arrays in combination with a transfer process （e. g., deposition/lift-off）. Different from the direct gap-writing process,the nanogap precursor structures （nanoconnections） were designed by GDSII software and then written by electron beam. Following a deposition and lift-off process, the metal nanogaps were obtained and the nanogap size can be lowered to -10nm by controlling the exposure dose in EBL.

摘要：Existing technologies used to detect monosodium urate(MSU)crystals for gout diagnosis are not ideal due to their low sensitivity and complexity of *** purpose of this study was to explore whether aggregation-induced emission luminogens(AIEgens)can be used for highly specific imaging of MSU crystals to assist in the diagnosis of ***,we developed a series of luminogens(i.e.,tetraphenyl ethylene(TPE)-NH_(2),TPE-2NH_(2),TPE-4NH_(2),TPE-COOH,TPE-2COOH,TPE-4COOH,and TPE-Ketoalkyne),each of which was then evenly mixed with MSU ***,optimal fluorescence imaging of each of the luminogens was characterized by a confocal laser scanning microscope(CLSM).This approach was used for imaging standard samples of MSU,hydroxyapatite(HAP)crystals,and mixed samples with 1:1 mass ratio of MSU/*** also imaged samples from mouse models of acute gouty arthritis,HAP deposition disease,and comorbidities of ***,CLSM imaging results were compared with those of compensated polarized light microscopy,and we assessed the biosafety of TPE-Ketoalkyne in the RAW264.7 cell ***,CLSM time series and three-dimensional imaging were performed on MSU crystal samples from human gouty synovial fluid and *** a promising candidate for MSU crystal labeling,TPE-Ketoalkyne was found to detect MSU crystals accurately and rapidly in standard samples,animal samples,and human samples,and could precisely distinguish gout from HAP deposition *** work demonstrates that TPE-Ketoalkyne is suitable for highly specific and timely imaging of MSU crystals in gouty arthritis and may facilitate future research on MSU crystal-related diseases.

摘要：A kind of novel pitch-based activated carbon microsphere（ACM） characterized by its controlled porous structure was developed in this study,the curative effect of this ACM on diabetes mellitus in rats was *** 0.2-0.3 mm in diameter was prepared by modified *** optimal ACM was screened by its adsorption ability for *** mellitus model was established by streptozotocin injection in male Sprague-Dawley *** groups of rats were orally administrated with ACM twice a day for 30 *** glucose transport was determined in vitro using everted rat intestinal sacs *** with the diabetic mellitus group,the ACM treated group showed significant lower blood glucose level and improved glucose tolerance after two-week *** ACM was applied in the mucosal side,glucose permeation clearance in the ACM treated group was significantly higher than that of the control group,especially at high glucose concentration（10 mg/mL） on the serosal *** selected ACM possessed a BET specific surface of 1566 m^2/g and high volume of micropores（0.478 cm^3/g） with fine spherical morphology,and showed more significant adsorption capacity for *** oral microsphere preparations,ACM presented the curative effect on streptozotocin-induced diabetes mellitus in rats.

摘要：A series of benzohydrazide derivatives as novel ribosomal S6 kinase 2 （RSK2） inhibitors were designed and synthesized from a hit compound previously discovered by ligand-based virtual screening. Biological assays showed that these compounds possessed moderate inhibitory activities towards RSK2. The structural activity relationships （SAR） were elucidated by molecular docking and further optimization was performed.

摘要：[Objective] The aim was to introduce characters of light sources and select the optimal lamp scheme for floral production in greenhouses. [Method] With chrysanthemum cuttings as materials, HPSL, energy-saving fluorescent lamp, and LED agricultural lamp were made use of to carry out field tests in order to compare practical effects according to light characters of different lamps and plant growth de-mands. [Result] The results show that LED lamp performed the best of the three in practical use. LED square lamp designed in bat-wing shape would be the most ben-eficial for lamp distribution in a greenhouse. [Conclusion] LED agricultural lamp is the most popular currently, for it is energy saving and easy for operation.

摘要：钛合金耐压球壳被广泛地应用于大深度载人潜水器。但是,由于受到材料强度的限制,若采用成熟的Ti-6Al-4VELI来设计3人型的全海深载人舱,其壁厚将超出很多国家的现有制造能力。为了解决这一矛盾,该文提出了一种新的双球连接的方案,并以中国船级社最新的强度标准作为优化约束条件,用有限元分析法对这种结构形式进行了优化设计。最后,对双球结构方案与传统单球方案作了比较。

摘要：以2-羟基-3-甲氧基苯甲醛为原料,经13步反应合成了26个那可丁衍生物。以HL-60细胞为靶细胞,采用MTT法进行了初步的体外抗肿瘤活性研究。结果表明,大多数化合物对HL-60细胞株显示出较好的抑制活性和对微管聚合的抑制作用。优选出的化合物31对HL-60细胞株以及微管聚合的抑制活性是那可丁的3倍并诱导HL-60细胞在G2/M期累积,这为那可丁及其衍生物的抗肿瘤活性构效关系的研究打下了基础,值得进一步研究。