文献类型：期刊文献

英文题名：Construction of "ant-like tentacle" structure for ultra-sensitive detection of low-concentration ammonia through colorimetric fluorescent dual-signal gas-sensitive cotton fabric

作者：Fan, Ji[1,2];Zheng, Zhaofeng[1];Liu, Yitong[1];Wang, Yu[2];Wu, Wei[1];Ji, Bolin[1];Xu, Hong[1];Zhong, Yi[1];Zhang, Linping[1];Mao, Zhiping[1,3,4]

机构：[1]Donghua Univ, Coll Chem & Chem Engn, Key Lab Sci & Technol Ecotext, Minist Educ, 2999 North Renmin Rd, Shanghai 201620, Peoples R China;[2]Shaoxing Univ, Key Lab Clean Dyeing & Finishing Technol Zhejiang, Shaoxing 312000, Peoples R China;[3]Donghua Univ, Innovat Ctr Text Sci & Technol, Shanghai Belt & Rd Joint Lab Text Intelligent Mfg, Shanghai 201620, Peoples R China;[4]Adv Dyeing & Finishing Technol Co Ltd, Shandong Zhongkang Guochuang Res Inst, Natl Innovat Ctr Adv Dyeing & Finishing Technol, Taian City 271000, Shandong, Peoples R China

年份：2024

卷号：277

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：SCI-EXPANDED(收录号：WOS:001304526400001)、、EI(收录号：20243717033469)、Scopus(收录号：2-s2.0-85203556893)、WOS

基金：This work was financially supported by International Cooperation Fund of Science and Technology Commission of Shanghai Municipality (No. 21130750100) , Key R & D Program of Shandong Province (No. 2020CXGC011102) , Opening Project of Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province (No. QJRZ2313) , and the Fundamental Research Funds for the Central Universities (No. 2232022G-04) .

语种：英文

外文关键词：Visual detection; Dual-signal biosensor; Photoacid molecules; Food quality monitoring; Cotton fabric

外文摘要：Detection and monitoring of ammonia (NH3) are crucial in various industries, including plant safety management, food freshness testing, and water pollution control. Nevertheless, creating portable, low-cost, highly sensitive, and easily regenerated ppm-level NH3 sensors poses a significant challenge. In this investigation, an innovative "ant-like tentacle" fabrication strategy was proposed, and a colorimetric fluorescent dual-signal gassensitive cotton fabric (PAH-fabric) for NH3 detection was successfully prepared by conventional dyeing using suitable molecular-level photoacid (PAH) sensitive units. The visual recognition lower detection limit of the ultra-low is 1.09 ppm-level. PAH-fabric is not only straightforward, convenient, and cost-effective to prepare, but it can also be efficiently regenerated and recycled multiple times (maintaining excellent gas-sensitive performance even after 100 cycles) by strategically leveraging volatile acid fumigation. Detailed molecular reaction mechanisms involved in the NH3 response and PAH-fabric regeneration are elucidated. PAH-fabric, available either as a portable kit or an alarm system, offers a promising approach for ultra-low NH3 detection. The demonstrated "ant-like tentacle" fabrication strategy introduces numerous possibilities for designing and developing sensors with adjustable response thresholds, particularly those requiring high sensitivity.