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| 1 | Preparation of novel bovine hemoglobin surface-imprinted polystyrene nanoparticles with magnetic susceptibility显示文摘In this research, a surface imprinting strategy has been adopted in protein imprinting. Bovine hemo-globin surface-imprinted polystyrene (PS) nanoparticles with magnetic susceptibility have been syn-thesized through multistage core-shell polymerization system using 3-aminophenylboronic acid (APBA) as functional and cross-linking monomers. Superparamagnetic molecularly imprinted polystyrene nanospheres with poly(APBA) thin films have been synthesized and used for the first time for protein molecular imprinting in an aqueous solution. The magnetic susceptibility is imparted through the successful encapsulation of Fe3O4 nanoparticles. The morphology, adsorption, and recognition prop-erties of superparamagnetic molecularly imprinted polymers (MIPs) have been investigated using transmission electron microscopy, X-ray diffraction, thermogravimetric analysis, and vibrating sample magnetometer. Rebinding experimental results show that poly(APBA) MIPs-coated superparamagnetic PS nanoparticles have high adsorption capacity for template protein bovine hemoglobin and compara-tively low nonspecific adsorption. The imprinted superparamagnetic nanoparticles could easily reach the adsorption equilibrium and achieve magnetic separation in an external magnetic field, thus avoid-ing some problems of the bulk polymer. | LI Lin HE XiWen CHEN LangXing ZHANG YuKui | 2009 | Science China Chemistry2009，52，9： | 8 |
| 2 | Fluorescenthydrogelsforembryoidbodyformationandosteogenicdifferentiationofembryonicstemcells显示文摘 | ZurNiedenNI TurgmanCC LangX etal | 2015 | ACSApplMaterInterfaces2015，7，10： | 1 |
| 3 | Single-molecule biotechnology for protein researches显示文摘Cells employ proteins to perform metabolic functions and maintain active physiological state through charge transfer and energy conversion.These processes are carried out in a narrow space precisely and rapidly,which,no doubt,bring great difficulty for their detection and dissection.Fortunately,in recent years,the development and expansion of single-molecule technique in protein research make monitoring the dynamical changes of protein at single-molecule level a reality,which also provides a powerful tool for the further exploration of new phenomena and new mechanisms of life activities.This paper aims to summarize the working principle and essential achievements of single-molecule technique in protein research in recent five years.We focus on not only dissecting the difference of nanopores,atomic force microscope,scanning tunneling microscope,and optical tweezers technique,but also discussing the great significance of these single-molecule techniques in investigating intramolecular and intermolecular interactions,electron transport,and conformational changes.Finally,the opportunities and challenges of the single-molecule technique in protein research are discussed,which provide a new door for single-molecule protein research. | Xiaoyan Zhuang Qian Wu Aihui Zhang Langxing Liao Baishan Fang | 2021 | Chinese Journal of Chemical Engineering2021，34，2： | 1 |
| 4 | Double-armed calixarene amide derivatives as ionophores for lead ion-selective electrodes 显示文摘 | Chen Langxing Zhang Jia Zhao Wenfeng He Xiwen Liu Yu | 2006 | Journal of Electroanalytical Chemistry2006，589，1： | 1 |
| 5 | InsightsintoaquatictoxGicitiesoftheantibioticsoxytetracyclineandciprofloxacininthepresenceofmetal:complexationversusmixture显示文摘 | ZhangY CaiX LangX etal | 2012 | EnvironmentalPollution2012，166，： | 1 |
| 6 | Preparation of core - shell magnetic mo- lecularly imprinted polymer nanoparticles for recognition of bovine hemoglobin 显示文摘 | Lin Li Xiwen He Langxing Chen and YukuiZhang | 2009 | Chemis- try - An Asian Journal2009，4，： | 1 |
| 7 | Synthesis and characterization of the core–shell magnetic molecularly imprinted polymers (Fe 3 O 4 @MIPs) adsorbents for effective extraction and determination of sulfonamides in the poultry feed显示文摘 | Xuan Kong Ruixia Gao Xiwen He Langxing Chen Yukui Zhang | 2012 | Journal of Chromatography A2012，，： | 1 |
| 8 | Heterogeneous visible light photocatalysis for selective organic transformations 显示文摘 | LangX J Chen X D Zhao J C | 2014 | Chem Soc Rev2014，43，1： | 1 |
| 9 | A molecularly imprinted polymer-coated nanocomposite of magnetic nanoparticles for estrone recognition显示文摘 | Xin Wang Lianyan Wang Xiwen He Yukui Zhang Langxing Chen | 2008 | Talanta2008，，2： | 1 |
| 10 | A facile method to coat mesoporous silica layer on carbon nanotubes by anionic surfactant显示文摘 | Min Zhang Xihao Zhang Xiwen He Langxing Chen Yukui Zhang | 2010 | Materials Letters2010，，： | 1 |
| 11 | Selective electrodes for silver based on polymeric membranes containing calix[4]arene derivatives显示文摘 | Langxing Chen Xianshun Zeng Xiwen He Zhengzhi Zhang | 2000 | Fresenius’ Journal of Analytical Chemistry2000，，6： | 1 |
| 12 | 显示文摘 | Zhang Min He Xiwen Chen Langxing | 2010 | J Mater Chem2010，20，10： | 1 |
| 13 | Calixarene derivative as the neutral carrier in silver ion-selective electrode and liquid membrane transport显示文摘 | Chen Langxing He Xiwen Zhao Bangtun | 2000 | Analytica Chimica Acta2000，417，1： | 1 |
| 14 | The Interactive Impact of Trade Policy Uncertainty and Credit Constraint Heterogeneity on Firms' Export Margins: Theory and Empirics显示文摘This paper develops a simple trade model of heterogeneous firms, which incorporates the dual heterogeneity of credit constraints at the firm and industry levels and reveals the effects of the interaction mechanisms of trade policy uncertainty and credit constraint heterogeneity on exporters’ behaviour. The model confirms that the higher the level of industrial credit constraints, the greater the interaction of trade policy uncertainty and credit constraint heterogeneity, but firms with lower levels of credit constraints within a specific industry are more affected by this interaction. Then, based on the highly dis-aggregated trade data of China’s firms from 2000 to 2013, this paper provides empirical evidence for the main predictions and mechanisms of the theoretical model. | Qing LIU Yanchao ZHANG Langxing LI Shuaihang LI | 2021 | Journal of Systems Science and Information2021，9，6： | 0 |
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