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Use of Ionic Liquid-filled semipermeable membrane for Extraction of Polycyclic Aromatic Hydrocarbons in Water

Chinese Chemical Letters 2005年第4期16卷 520-522页

作者： WenYanZHAO MengHAN ShuGuiDAI XiaZHONG TheCollegeofEnvironmentalScienceandEngineering NankaiUniversityTianjin300071

A novel and facile sample preparation method was developed for the extraction of polycyclic aromatic hydrocarbons (PAHs) in aqueous sample solution using 1-butyl-3- methylimidazolium hexafluorophosphate ([C4MIM][PF6]) – filled semipermeable membrane. For 24 hrs extraction of naphthalene, 1-methylnaphthalene, 2-chloronaphthalene, phenanthrene, the result showed that the extraction efficiency, correlation coefficient (R2) and RSD (n=5) were in the range of 67-102 %, 0.9870-0.9962, and 2.1-5.3 %, respectively.

关键词： Ionic liquid semipermeable membrane extraction polycyclic aromatic hydrocarbons.

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Intracerebral xenotransplantation of semipermeable membrane- encapsuled pancreatic islets

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World Journal of Gastroenterology 2005年第36期11卷 5714-5717页

作者： Zhao-Liang Xin Song-Lin Ge Xiao-Kang Wu Yan-Jie Jia Han-Tao Hu Neurosurgery Department of Yiwu Central Hospital 3rd Faculty of Medical College Zhejiang University Yiwu 322000 Zhejiang Province China 3rd Faculty of Medical College Zhejiang University Hangzhou 310016 Zhejiang Province China Department of Neurosurgery Affiliated Hospital of Railway University Shanghai China Department of Anatomy Medical College Xi'an Jiaotong University Xi'an 710007 Shaanxi Province China

AIM： To identify the decreasing effect of xenotransplantion in combination with privileged sites on rejection and death of biological semipermeable membrane-（BSM） encapsulated implanted islets. METHODS： After the BSM experiment in vitro, BSM- encapsulated SD rat＇s islet-like cell clusters （ICCs） were xenotransplanted into normal dog＇s brain. Morphological changes were observed under light and transmission electron microscope. The islets and apoptosis of implanted B cells were identified by insulin-TONEL double staining. RESULTS： The BSM used in our study had a favorable permeability, some degree of rigidity, lighter foreign body reaction and toxicity. The grafts consisted of epithelioid cells and loose connective tissue. Severe infiltration of inflammatory cells was not observed. The implanted ICCs were identified 2 mo later and showed typical apoptosis. CONCLUSION： BSM xenotransplantation in combination with the privileged site can inhibit the rejection of implanted heterogeneous ICCs, and death of implanted heterogeneous B cells is associated with apoptosis. 2005 The WJG Press and Elsevier Inc. All rights reserved.

关键词： Islets of Langerhans Xenotransplantation Brain semipermeable membrane

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