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| 1 | In-situ fabricated anisotropic halide perovskite nanocrystals in polyvinylalcohol nanofibers: Shape tuning and polarized emission显示文摘We report an in-situ fabrication of halide perovskite (CH3NH3PbX3,CH3NH3 =methylammonium,MA,X =Cl,Br,I) nanocrystals in polyvinylalcohol (PVA) nanofibers (MAPbX3@PVA nanofibers) through electrospinning a perovskite precursor solution.With the content of the precursors increased,the resulting MAPbBr3 nanocrystals in PVA matrix changed the shape from ellipsoidal to pearl-like,and finely into rods-like.Optimized MAPbBr3@PVA nanofibers show strong polarized emission with the photoluminescence quantum yield of up to 72%.We reveal correlations between the shape of in-situ fabricated perovskite nanocrystals and the polarization degree of their emission by comparing experimental data from the single nanofiber measurements with theoretical calculations.Polarized emission of MAPbBr3@PVA nanofibers can be attributed to the dielectric confinement and quantum confinement effects.Moreover,nanofibers can be efficiently aligned by using parallel positioned conductor strips with an air gap as collector.A polarization ratio of 0.42 was achieved for the films of well-aligned MAPbBr3@PVA nanofibers with a macroscale size of 0.5 cm × 2 cm,which allows potential applications in displays,lasers,waveguides,etc. | Linghai Meng Changgang Yang Jingjia Meng Yongzhi Wang Yong Ge Ziqiang Shao Guofeng Zhang Andrey L.Rogach Haizheng Zhong | 2019 | Nano Research2019，12，6： | 9 |
| 2 | Electrospinning of hydroxypropyl methylcellulose trimellitate solutions显示文摘Nonwoven fiber mats of hydroxypropyl methylcellulose trimellitate(HPMCT) with potential applications in controlled delivery of drugs and scaffolds for tissue cultures have been successfully fabricated by electrospinning of HPMCT solutions.The formation and diameters of HPMCT fibers fabricated by electrospinning were strongly influenced by the solvents employed,electrostatic field strength,and solution concentrations.The electrospun products generated from all HPMCT solutions with various weight-average molecular weights in methanol/dichloromethane(1:1) solvent consisted of clustered beads,while methanol/dichloromethane(1:5) solvent helped to generate smooth,uniform,submicron fibers.From the relationship between specific viscosity and molecular weight in different solvents,it could be concluded that methanol/dichloromethane(1:5) solvent enhanced the molecular entanglements,improved the viscosity of the solutions,thus helped to generate smooth fibers.When all the other variables were kept constant,the concentration range suitable for electrospinning was between 10% and 16%(wt),and the average fiber diameter increased as the concentration increased.When all the other variables were kept constant,the average fiber diameter decreased as the strength of the electrostatic field increased.Electrospinning the solutions of two compounds with similar structure,hydroxypropyl methylcellulose phthalate(HPMCP) and HPMCT,we found that the fibers electrospun from HPMCP were thicker than that from HPMCT,which is attributed to the fact that the solution's conductivity of HPMCT(containing two free carboxyl groups) is higher than that of HPMCP(containing only one free carboxyl group). | MA Gang,SHAO ZiQiang,WANG WenJun,WANG FeiJun,TAN LingLing & LIAO Bing School of Material,Beijing Institute of Technology,Beijing 100081,China | 2010 | Science China Chemistry2010，53，1： | 3 |
| 3 | Preparation and character- ization of cellulose acetate/carboxymethyl cellulose acetate blend ultrafiltration membranes 显示文摘 | Baixin Han Dalun Zhang Ziqiang Shao | 2013 | Desalination2013，311，： | 1 |
| 4 | CA II, a potential biomarker by proteomic analysis, exerts significantinhibitory effect on the growth of colorectal cancer cells显示文摘 | Rui Zhou Wenjun Huang Yuqin Yao Yuxi Wang Ziqiang Li Bin Shao Jian Zhong Minghai Tang Shufang Liang Xia Zhao Aiping Tong Jinliang Yang | 2013 | International Journal of Oncology2013，，2： | 1 |
| 5 | The electrochemical performance of carboxymethyl cellulose with different DS as a binding material in lithium batteries显示文摘 | Hao Hongying Shao Ziqiang | 2012 | Adv Mater2012，499，： | 1 |
| 6 | Study on effects of carboxymethyl cellulose lithium (CMC-Li) synthesis and electrospinning on high-rate lithium ion batteries 显示文摘 | Qiu Lei Shao Ziqiang Yang Mingshan | 2014 | Cellu- lose2014，21，1： | 1 |
| 7 | N,P co-doped porous graphene with high electrochemical properties obtained via the laser induction of cellulose nanofibrils显示文摘Cellulose and its derivatives are natural materials with high carbon contents, but it is challenging to convert their carbon into high value-added carbonaceous materials(e.g., graphene). Here, an approach to convert the carbon in cellulose into N, P co-doped porous graphene(LIG) materials via laser induction is proposed. Cellulose nanofibrils(CNFs), a cellulose derivative with high dispersion uniformity and abundant surface hydroxyl groups, were easily formed on a bulk substrate(thickness ≥5 mm) containing ammonium polyphosphate(APP). Then, a 10.6 μm CO2 laser was used to scribe for 1–5 passes on the CNFs/APP substrate under an ambient environment to produce N, P co-doped porous LIG. Upon increasing the number of laser scribing passes, the IG/IDof LIG first increased and then decreased, reaching a maximum of 1.68 at 4 passes. The good pore structure and low resistance also showed that 4 laser passes were ideal. Besides, the N, P co-doped LIG also showed excellent electrochemical performance, with a specific capacitance of 221.4 FF·g^(-1) and capacitance retention of 89.9%. This method exploits the advantages of nanocellulose and overcomes the difficulties associated with directly compounding cellulosic materials, providing a method for the further development of biomass nanomaterials. | Jie Wei Weiwei Yang Shuai Jia Jie Wei Ziqiang Shao | 2022 | Chinese Journal of Chemical Engineering2022，35，7： | 0 |
| 8 | Synthesis and Gelation Capability of Fmoc and Boc Mono-substituted Cyclo(L-Lys-L-Lys)s显示文摘 | ZONG Qianying GENG Huimin YE Lin ZHANG Aiying SHAO Ziqiang FENG Zengguo | 2016 | Chemical Research in Chinese Universities2016，32，3： | 0 |
| 9 | Potential neural mechanism of single session transcranial magnetic stimulation on smoking craving显示文摘Dear editor,Roles of left dorsolateral prefrontal cortex(DLPFC) in smoking craving and relapse have been highlighted [1–3].Converging evidence has also showed the therapy of the repetitive transcranial magnetic stimulation (rTMS) on the left DLPFC for interventions of substance use disorders (SUD)[4,5]. | Kai YUAN Xinwen WEN Shicong WANG Shuang LIU Ziqiang SHAO Min ZHANG Yan XU Longmao CHEN Dahua YU | 2020 | Science China(Information Sciences)2020，63，7： | 0 |
| 10 | Establishment of a pseudovirus neutralization assay based on SARS-CoV-2 S protein incorporated into lentiviral particles显示文摘The coronavirus disease 2019(COVID‐19)is still causing a wide range of infections and deaths due to the high variability of the severe acute respiratory syndrome coronavirus 2(SARS‐CoV‐2).Therefore,it is necessary to establish a reliable and convenient pseudovirus‐based neutralization assay to develop drug targeted variants of SARS‐CoV‐2.Based on the HIV‐1 backbone,we generated a high titer luciferase(Luc)‐expressing pseudovirus packaging system.Three dominant S mutant substitution pseudovirus were also established and identified compared to wide type in hACE2‐overexpressingHEK‐293T cells(293T‐ACE2 cells).Compared to serine protease inhibitor camostat mesylate,the cysteine protease inhibitor E‐64d could significantly block all SARS‐CoV‐2 mutant S pseudovirus infection in 293T‐ACE2 cells.Furthermore,the neutralization ability of two antibodies targeted receptor‐binding domain(RBD)of SARS‐CoV‐2 spike protein(S)was evaluated,which showeddifferent inhibition dose–effect curves among four types of S pseudovirus.Overall,we developed a pseudovirus‐based neutralization assay for SARS‐CoV‐2,which would be readily adapted to SARS‐CoV‐2 variants for evaluating antibodies. | Sheng Wang Lizhen Liu Can Wang Ziqiang Wang Xuhua Duan Gang Chen Hu Zhou Hong Shao | 2022 | Biosafety and Health2022，4，1： | 0 |
| 11 | Porous Silicon as a Carrier of Sensing Materials in Sensors显示文摘Novel potassium ion selective electrodes (K^+ISEs) and cDNA array sensors based on porous silicon (PS) have been developed.The calibration curve for the K^+ISEs is linear within a wide range of pK=2.0~6.0 with the slope of 56 mV per decade,which is near Nernst response.The response time and detection limit are within 31 s and 0.5μmol/L,respectively.The selective coefficient for Na^+ is-3.8,satisfies the requirement for the assay of blood potassium.The response variation is within 2 mV during 2 months.The binding capacity,the dynamic range and the detection limit of the DNA sensors were improved by replacing glass slide with PS substrates.The cDNA array sensors can bear 80℃of high temperature,75% of humidity,3.6 kLx of irradiation and keep stable within 10 days when they are exposed in air.Good performances of the K^+ISE and the cDNA array sensor are attributed to the large internal surface area and the easily modified microstructure of PS. | Ziqiang Zhu Li Shao Jian Zhang Jianzhong Zhu | 2006 | 稀有金属材料与工程2006，35，A03： | 0 |
| 12 | Optical properties of CeO_2/Fe_3O_4 solar control glass coating显示文摘A cerium-iron oxide solar control coating on glass was prepared by citric acid sol-gel method, dip-coating techniques and proper heat treatment process. Results show that the cerium-iron glass coating is composed of nanocrystalline CeO2, Fe2O3, and nano holes. The cerium-iron glass coating has high transmittance in visible light, low UV and near IR transmittance. The wavelength of absorption edge for most glass coating has an obvious redshift to about 375 nm. There exist a wide absorption band at the range of 800-1600 nm and high transmittance at the wavelength from 400 nm to 800 nm, and the solar energy and visible transmittances are 50% and 65%, respectively. It ascribes to the high content of trivalence cerium and bivalence iron ions in the cerium/iron coating. It is indicated that this kind of glass coating has very good UV-sheering and heat-insulating property, can be used as an effective solar control glass in automobile and architecture. | ZHAO Hongsheng LIU Bing HU Hongpo LI Ziqiang SHAO Youlin | 2006 | Rare Metals2006，25，z1： | 0 |
| 13 | Improving the band alignment at PtSe_(2)grain boundaries with selective adsorption of TCNQ显示文摘Grain boundaries in two-dimensional(2D)semiconductors generally induce distorted band alignment and interfacial charge,which impair their electronic properties for device applications.Here,we report the improvement of band alignment at the grain boundaries of PtSe_(2),a 2D semiconductor,with selective adsorption of a presentative organic acceptor,tetracyanoquinodimethane(TCNQ).TCNQ molecules show selective adsorption at the PtSe_(2)grain boundary with strong interfacial charge.The adsorption of TCNQ distinctly improves the band alignment at the PtSe_(2)grain boundaries.With the charge transfer between the grain boundary and TCNQ,the local charge is inhibited,and the band bending at the grain boundary is suppressed,as revealed by the scanning tunneling microscopy and spectroscopy(STM/S)results.Our finding provides an effective method for the advancement of the band alignment at the grain boundary by functional molecules,improving the electronic properties of 2D semiconductors for their future applications. | Yanhui Hou Ziqiang Xu Yan Shao Linlu Wu Zhongliu Liu Genyu Hu Wei Ji Jingsi Qiao Xu Wu Hong-Jun Gao Yeliang Wang | 2023 | Nano Research2023，16，2： | 0 |
| 14 | Gelation capability of cysteine-modified cyclo(L-Lys-L-Lys)s dominated by Fmoc and Trt protecting groups显示文摘A series of symmetrical peptidomimetics(3–8) based on cysteine-modified cyclo(L-Lys-L-Lys)s were synthesized, and their gelation capability in organic solvents was dominated by fluorenylmethyloxycarbonyl(Fmoc) and triphenylmethyl(Trt) protecting groups and the exchange of thiol-to-disulfide as well. The peptidomimetics holding Trt(3 and 4) showed no gel performance, while the Fmoc groups promoted 5 and 6 to give rise to thermo-reversible organogels in a number of organic solvents. The self-assembled fibrillar networks were distinctly evidenced in the organogels by transmission electron microscopy(TEM) and scanning electron microscopy(SEM) observations. Fourier transform infrared spectroscopy(FT-IR) and fluorescence analyses revealed that the hydrogen bonding and ?-? stacking play as major driving forces for the self-assembly of these organogelators. A ?-turn secondary structure was deduced for the organogel of 6 by virtue of X-ray diffraction, FT-IR and circular dichroism(CD) measurements, and an interdigitated bilayer structure was also presented. | Huimin Geng Qianying Zong Jie You Lin Ye Aiying Zhang Ziqiang Shao Zengguo Feng | 2016 | Science China Chemistry2016，59，3： | 0 |
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