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Wang Y, Deng C, Chen S, Song Y, Wu H, Du W, Xiao F. A cation-mediated fluorescence enhanced hydrogel for the sensitive detection of uranyl ions in water. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2025. [PMID: 40208619 DOI: 10.1039/d5ay00253b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2025]
Abstract
Uranium, in terms of both its radioactivity and chemical toxicity, poses significant environmental and health risks when released through nuclear industry activities and its mining. The sensitive detection of uranyl ions (UO22+) in wastewater is crucial for mitigating these risks and safeguarding public health. Herein, we present an innovative approach by synthesizing the functional monomer 6-(3-(2-(methacryloyloxy)ethyl)ureido)picolinate (K6MUPA) to create a novel europium ion (Eu3+)-K6MUPA-AAm hydrogel sensor. Through simple ionic coordination, europium ions (Eu3+) were incorporated into the hydrogel, which initially exhibited weak fluorescence. Remarkably, the fluorescence intensity was significantly enhanced by the cationic interactions between UO22+ and Eu3+, enabling highly sensitive and selective detection of UO22+. The sensor demonstrated a linear response in the range of 1-100 nmol L-1 (F - F0 = 10.52Curanyl + 97.38) with a detection limit of 1 nmol L-1. Practical applicability was confirmed through real sample analysis, achieving excellent recoveries of 100.18-107.36%. This work not only advances UO22+ detection but also highlights the potential of innovative hydrogel-based sensors for environmental monitoring.
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Affiliation(s)
- Yuxiao Wang
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, China.
| | - Chenyi Deng
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, China.
| | - Shusen Chen
- Beijing Research Institute of Chemical Engineering and Metallurgy, CNNC Key Laboratory on Uranium Extraction from Seawater, Beijing, 101121, China
| | - Yan Song
- Beijing Research Institute of Chemical Engineering and Metallurgy, CNNC Key Laboratory on Uranium Extraction from Seawater, Beijing, 101121, China
| | - Haotian Wu
- Beijing Research Institute of Chemical Engineering and Metallurgy, CNNC Key Laboratory on Uranium Extraction from Seawater, Beijing, 101121, China
| | - Wenfang Du
- School of Chemical and Environmental Engineering, Hunan Institute of Technology, Hengyang, 421002, China.
| | - Fubing Xiao
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, China.
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Reville EK, Sylvester EH, Benware SJ, Negi SS, Berda EB. Customizable molecular recognition: advancements in design, synthesis, and application of molecularly imprinted polymers. Polym Chem 2022. [DOI: 10.1039/d1py01472b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Molecularly imprinted polymers (MIPs) are unlocking the door to synthetic materials that are capable of molecular recognition.
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Affiliation(s)
- Erinn K. Reville
- Department of Chemistry, University of New Hampshire, 03824, Durham, NH, USA
| | | | - Sarah J. Benware
- Department of Chemistry, University of Wisconsin-Madison, 54706, Madison, WI, USA
| | - Shreeya S. Negi
- Department of Chemistry and Biochemistry, California Polytechnic State University, 93410, San Luis Obispo, CA, USA
| | - Erik B. Berda
- Department of Chemistry, University of New Hampshire, 03824, Durham, NH, USA
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Liu C, Kubo T, Otsuka K. Specificity recognition for a target protein, cytochrome c using molecularly imprinted hydrogels. J Mater Chem B 2022; 10:6800-6807. [DOI: 10.1039/d2tb00501h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Protein imprinted hydrogel, which is one form of protein imprinted molecularly imprinted polymers (MIPs), is an important material for enzyme-linked immunosorbent assay, drug delivery materials, sensors, separation materials, etc. To...
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