1
|
Dou X, Wu Q, Luo S, Yang J, Dong B, Wang L, Qu H, Zheng L. A miniaturized biosensor for rapid detection of tetracycline based on a graphene field-effect transistor with an aptamer modified gate. Talanta 2024; 271:125702. [PMID: 38271844 DOI: 10.1016/j.talanta.2024.125702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 01/09/2024] [Accepted: 01/19/2024] [Indexed: 01/27/2024]
Abstract
Tetracycline is a broad-spectrum antibiotic for human, poultry and livestock that may cause health damage when enriched in humans. Therefore, it is essential to create a rapid tetracycline assay with high sensitivity, specificity and portability. In this study, a miniaturized tetracycline biosensor based on aptamer-modified graphene field-effect transistor (Apt-SGGT) was fabricated and two detection strategies using transfer characteristic curves and real-time channel current were established for different circumstances. The detection limits of the two strategies were 2.073 pM and 100 pM, respectively. The biosensor also demonstrated outstanding stability, anti-interference and specificity ability. Finally, the biosensor was employed to detect the content of tetracycline in Skim Milk with outstanding recovery rate. We believe that the miniaturized Apt-SGGT biosensor with appropriate detection strategies will provide an ideal portable sensing platform for many important analytes in food with superior selectivity and sensitivity.
Collapse
Affiliation(s)
- Xianzhi Dou
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Qingliu Wu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Songjia Luo
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Jing Yang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Baolei Dong
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Lu Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Hao Qu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China; Engineering Research Center of Bioprocess, Ministry of Education, Hefei University of Technology, Hefei, 230009, China.
| | - Lei Zheng
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China; Intelligent Interconnected Systems Laboratory of Anhui Province, Hefei University of Technology, Hefei, 230009, China.
| |
Collapse
|
2
|
Wang B, Wang J, Hu Z, Zhu AL, Shen X, Cao X, Wen JL, Yuan TQ. Harnessing Renewable Lignocellulosic Potential for Sustainable Wastewater Purification. RESEARCH (WASHINGTON, D.C.) 2024; 7:0347. [PMID: 38576863 PMCID: PMC10993153 DOI: 10.34133/research.0347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 03/07/2024] [Indexed: 04/06/2024]
Abstract
Utilizing renewable lignocellulosic resources for wastewater remediation is crucial to achieving sustainable social development. However, the resulting by-products and the synthetic process characterized by complexity, high cost, and environmental pollution limit the further development of lignocellulose-based materials. Here, we developed a sustainable strategy that involved a new functional deep eutectic solvent (DES) to deconstruct industrial xylose residue into cellulose-rich residue with carboxyl groups, lignin with carboxyl and quaternary ammonium salt groups, and DES effluent rich in lignin fragments. Subsequently, these fractions equipped with customized functionality were used to produce efficient wastewater remediation materials in cost-effective and environmentally sound manners, namely, photocatalyst prepared by carboxyl-modified cellulose residue, biochar-based adsorbent originated from modified lignin, and flocculant synthesized by self-catalytic in situ copolymerization of residual DES effluent at room temperature. Under the no-waste principle, this strategy upgraded the whole components of waste lignocellulose into high-value-added wastewater remediation materials with excellent universality. These materials in coordination with each other can stepwise purify high-hazardous mineral processing wastewater into drinkable water, including the removal of 99.81% of suspended solids, almost all various heavy metal ions, and 97.09% chemical oxygen demand, respectively. This work provided promising solutions and blueprints for lignocellulosic resources to alleviate water shortages while also advancing the global goal of carbon neutrality.
Collapse
Affiliation(s)
- Bin Wang
- State Key Laboratory of Efficient Production of Forest Resources,
Beijing Forestry University, Beijing 100083, China
- Beijing Key Laboratory of Lignocellulosic Chemistry,
Beijing Forestry University, Beijing 100083, China
| | - Jiaming Wang
- State Key Laboratory of Efficient Production of Forest Resources,
Beijing Forestry University, Beijing 100083, China
- Beijing Key Laboratory of Lignocellulosic Chemistry,
Beijing Forestry University, Beijing 100083, China
| | - Zhaohui Hu
- State Key Laboratory of Efficient Production of Forest Resources,
Beijing Forestry University, Beijing 100083, China
- Beijing Key Laboratory of Lignocellulosic Chemistry,
Beijing Forestry University, Beijing 100083, China
| | - An-Ling Zhu
- Hunan Nonferrous Metals Research Institute Co. Ltd., Changsha 410000, China
| | - Xiaojun Shen
- State Key Laboratory of Efficient Production of Forest Resources,
Beijing Forestry University, Beijing 100083, China
- Beijing Key Laboratory of Lignocellulosic Chemistry,
Beijing Forestry University, Beijing 100083, China
| | - Xuefei Cao
- State Key Laboratory of Efficient Production of Forest Resources,
Beijing Forestry University, Beijing 100083, China
- Beijing Key Laboratory of Lignocellulosic Chemistry,
Beijing Forestry University, Beijing 100083, China
| | - Jia-Long Wen
- State Key Laboratory of Efficient Production of Forest Resources,
Beijing Forestry University, Beijing 100083, China
- Beijing Key Laboratory of Lignocellulosic Chemistry,
Beijing Forestry University, Beijing 100083, China
| | - Tong-Qi Yuan
- State Key Laboratory of Efficient Production of Forest Resources,
Beijing Forestry University, Beijing 100083, China
- Beijing Key Laboratory of Lignocellulosic Chemistry,
Beijing Forestry University, Beijing 100083, China
| |
Collapse
|