Journal
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
Volume 230, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2020.118031
Keywords
Wet-spinning; Fluorescent fiber; Gold nanocluster; Sensing; And-counterfeiting
Categories
Funding
- National Natural Science Foundation of China [NSFC 51403162, 51273153]
- Hubei Provincial Natural Science Foundation of China [2018CFB523]
- Open Project of Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Ministry of Education of China (Hubei University) [KLSAOFM1712]
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Fluorescent and robust fibers based on gold nanoclusters-loaded alginate were successfully prepared by wet spinning of gold nanoclusters and alginate. The relationship between process conditions, mechanical properties, and fluorescent properties of fibers was investigated. The as-prepared fibers exhibited high mechanical strength ( up to 7.09 cN/dtex) and remarkable red emission under ultraviolet excitation. The fibers could be used as a simple, low-cost, and high-selectivity fluorescent sensor for detecting Cu2+ and Hg2+ among various metal ions in aqueous solution, with a detection limit as low as 187.99 nM for Cu2+ and 82.14 nM for Hg2+, respectively. Furthermore, the novel fluorescent fibers were used as an anti-counterfeiting label through knitting into textile materials. The wet-spun functional fibers may be applied to the design of smart wearable sensors and flexible optical sensors. (C) 2020 Elsevier B.V. All rights reserved.
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