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  2. 烟台海岸带研究所
  3. 中国科学院烟台海岸带研究所
  4. 中科院海岸带环境过程与生态修复重点实验室
Versatile polymeric membrane ion-selective electrodes based on cellulose triacetate

文献类型：期刊论文

作者Liu, Lu3,4; Liu, Shusheng5; Liang, Rongning3; Qin, Wei1,2,3
刊名ANALYST
出版日期2026-02-04
页码7
ISSN号0003-2654
DOI10.1039/d5an01364j
通讯作者Liang, Rongning(rnliang@yic.ac.cn)
英文摘要Nowadays, polymeric membrane ion-selective electrodes (ISEs) based on poly(vinyl chloride) (PVC) matrices are widely used in clinical diagnosis and environmental monitoring. However, the chemical inertness of PVC may limit sensor applications in some scenarios, such as surface modification and construction of potentiometric biosensors through surface grafting of receptors. In this work, cellulose triacetate (CTA) is employed as a membrane matrix to prepare polymeric membrane ISEs. The versatile properties of the proposed CTA-based potentiometric sensors in terms of biocompatibility, biodegradability and easy chemical modification are illustrated. As a proof-of-concept experiment, polymeric membrane Ca2+-ISEs using CTA as the membrane matrix have been fabricated. The electrode has a linear range of 1.0 & times; 10-5 to 1.0 & times; 10-2 M with a Nernstian slope of 29.19 +/- 0.97 mV dec-1. A surface hydrophilic CTA-based Ca2+-ISE membrane can be simply obtained by alkaline hydrolysis of the electrode. The hydrolyzed surface of the obtained membrane can further be activated with carbonyldiimidazole (CDI) for the direct immobilization of the functionalized agent, polysaccharide chitosan, on the surface of the membranes. In addition, an enzyme, butyrylcholinesterase, can also be immobilized onto the ISE surface through a similar CDI reaction, which provides great potential for fabrication of new potentiometric biosensors. It will be shown that CTA can be used as a powerful membrane matrix alternative to the classical PVC matrix for fabrication of polymeric membrane optical and electrochemical sensors in clinical applications.
WOS关键词SENSORS ; COEFFICIENTS
WOS研究方向Chemistry
语种英语
WOS记录号WOS:001698855800001
资助机构Chinese Academy of Sciences ; Key Technology Research and Development Program of Shandong ; Natural Science Foundation of Shandong Province ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; Taishan Scholar Foundation of Shandong Province
源URL[http://ir.yic.ac.cn/handle/133337/42176]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者Liang, Rongning
作者单位1.Qingdao Marine Sci & Technol Ctr, Lab Marine Biol & Biotechnol, Qingdao 266237, Shandong, Peoples R China
2.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Shandong, Peoples R China
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Key Lab Coastal Zone Environm Proc & Ecol, Yantai 264003, Shandong, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Guilin Med Univ, Guilin 541004, Guangxi Zhuang, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Lu,Liu, Shusheng,Liang, Rongning,et al. Versatile polymeric membrane ion-selective electrodes based on cellulose triacetate[J]. ANALYST,2026:7.
APA Liu, Lu,Liu, Shusheng,Liang, Rongning,&Qin, Wei.(2026).Versatile polymeric membrane ion-selective electrodes based on cellulose triacetate.ANALYST,7.
MLA Liu, Lu,et al."Versatile polymeric membrane ion-selective electrodes based on cellulose triacetate".ANALYST (2026):7.

入库方式： OAI收割

来源：烟台海岸带研究所

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