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Wei H, Yang M, Huang C, Yue X, Cai J, Wang X, Fan K, Dong L, Wang G, Li D. A hemin/rGO/MWCNT nanocomposite-based dual signal electrochemical aptasensor for sensitive detection of NSE. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024. [PMID: 39263747 DOI: 10.1039/d4ay01238k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/13/2024]
Abstract
Neuron-specific enolase (NSE), a tumor marker of small cell lung cancer (SCLC), has high application value in the early diagnosis of SCLC. In this study, a dual signal electrochemical aptasensor for NSE was constructed based on hemin/reduced graphene oxide/multi-walled carbon nanotube (H-rGO-MWCNT) nanocomposites. Hemin played a dual role, functioning not only as an in situ electrochemical probe but also exhibiting excellent peroxidase-like properties, effectively catalyzing the electroreduction of H2O2. Reduced graphene oxide and multi-walled carbon nanotubes exhibited excellent conductivity. Through their binding with hemin, the nanocomposites achieved a larger specific surface area, providing numerous active sites for capturing the NSE aptamer. In the presence of NSE, the specific adsorption between the antigen and the aptamer formed a stable antigen-aptamer structure, which inhibited the performance of hemin, resulting in the weakening of the electrochemical signals of hemin and H2O2. Leveraging these characteristics, the sensitive and cost-effective dual-signal electrochemical aptasensor has been fabricated for the detection of NSE. One signal corresponded to differential pulse voltammetry (DPV) of hemin, while the other signal was derived from chronoamperometry, capturing the catalytic reduction of H2O2. The linear ranges for NSE were 1 pg mL-1 to 1 μg mL-1 and 100 pg mL-1 to 100 ng mL-1 with the limit of detection (LOD) of 0.21 pg mL-1 and 11.22 pg mL-1 by DPV and chronoamperometry, respectively. In addition, this aptasensor exhibited good reproducibility, stability and specificity. The recovery of NSE in human blood serum samples was from 89% to 131%. It provided a promising strategy for the detection of NSE in clinical diagnostics.
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Affiliation(s)
- Huyue Wei
- Ministry of Education Engineering Research Center of Smart Microsensors and Microsystems, Hangzhou Dianzi University, Hangzhou, 310018, China.
- School of Electronics and Information, Hangzhou Dianzi University, Hangzhou, 310018, China
| | - Mingzhu Yang
- Ministry of Education Engineering Research Center of Smart Microsensors and Microsystems, Hangzhou Dianzi University, Hangzhou, 310018, China.
- School of Electronics and Information, Hangzhou Dianzi University, Hangzhou, 310018, China
| | - Chengshuai Huang
- Ministry of Education Engineering Research Center of Smart Microsensors and Microsystems, Hangzhou Dianzi University, Hangzhou, 310018, China.
- School of Electronics and Information, Hangzhou Dianzi University, Hangzhou, 310018, China
| | - Xiaojie Yue
- The Children's Hospital of Zhejiang University School of Medicine, Hangzhou, 310052, China
| | - Jiabin Cai
- The Children's Hospital of Zhejiang University School of Medicine, Hangzhou, 310052, China
| | - Xinyi Wang
- School of Electronics and Information, Hangzhou Dianzi University, Hangzhou, 310018, China
| | - Kai Fan
- School of Automation, Hangzhou Dianzi University, Hangzhou, 310018, China
| | - Linxi Dong
- Ministry of Education Engineering Research Center of Smart Microsensors and Microsystems, Hangzhou Dianzi University, Hangzhou, 310018, China.
- School of Electronics and Information, Hangzhou Dianzi University, Hangzhou, 310018, China
| | - Gaofeng Wang
- Ministry of Education Engineering Research Center of Smart Microsensors and Microsystems, Hangzhou Dianzi University, Hangzhou, 310018, China.
- School of Electronics and Information, Hangzhou Dianzi University, Hangzhou, 310018, China
| | - Dujuan Li
- Ministry of Education Engineering Research Center of Smart Microsensors and Microsystems, Hangzhou Dianzi University, Hangzhou, 310018, China.
- School of Electronics and Information, Hangzhou Dianzi University, Hangzhou, 310018, China
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Deng X, Ma B, Gong Y, Li J, Zhou Y, Xu T, Hao P, Sun K, Lv Z, Yu X, Zhang M. Advances in Aptamer-Based Conjugate Recognition Techniques for the Detection of Small Molecules in Food. Foods 2024; 13:1749. [PMID: 38890976 PMCID: PMC11172347 DOI: 10.3390/foods13111749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/23/2024] [Accepted: 05/30/2024] [Indexed: 06/20/2024] Open
Abstract
Small molecules are significant risk factors for causing food safety issues, posing serious threats to human health. Sensitive screening for hazards is beneficial for enhancing public security. However, traditional detection methods are unable to meet the requirements for the field screening of small molecules. Therefore, it is necessary to develop applicable methods with high levels of sensitivity and specificity to identify the small molecules. Aptamers are short-chain nucleic acids that can specifically bind to small molecules. By utilizing aptamers to enhance the performance of recognition technology, it is possible to achieve high selectivity and sensitivity levels when detecting small molecules. There have been several varieties of aptamer target recognition techniques developed to improve the ability to detect small molecules in recent years. This review focuses on the principles of detection platforms, classifies the conjugating methods between small molecules and aptamers, summarizes advancements in aptamer-based conjugate recognition techniques for the detection of small molecules in food, and seeks to provide emerging powerful tools in the field of point-of-care diagnostics.
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Affiliation(s)
- Xin Deng
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (X.D.); (B.M.); (Y.G.); (P.H.); (K.S.); (X.Y.)
| | - Biao Ma
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (X.D.); (B.M.); (Y.G.); (P.H.); (K.S.); (X.Y.)
| | - Yunfei Gong
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (X.D.); (B.M.); (Y.G.); (P.H.); (K.S.); (X.Y.)
| | - Jiali Li
- Hangzhou Quickgene Sci-Tech. Co., Ltd., Hangzhou 310018, China;
| | - Yuxin Zhou
- College of Life Science, China Jiliang University, Hangzhou 310018, China; (Y.Z.); (T.X.)
| | - Tianran Xu
- College of Life Science, China Jiliang University, Hangzhou 310018, China; (Y.Z.); (T.X.)
| | - Peiying Hao
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (X.D.); (B.M.); (Y.G.); (P.H.); (K.S.); (X.Y.)
| | - Kai Sun
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (X.D.); (B.M.); (Y.G.); (P.H.); (K.S.); (X.Y.)
| | - Zhiyong Lv
- Dept Qual Managemet, Inner Mongolia Yili Grp. Co., Ltd., Hohhot 151100, China;
| | - Xiaoping Yu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (X.D.); (B.M.); (Y.G.); (P.H.); (K.S.); (X.Y.)
| | - Mingzhou Zhang
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (X.D.); (B.M.); (Y.G.); (P.H.); (K.S.); (X.Y.)
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Zhou R, Wang L, Li Y, Wu H, Lu L, Zang R, Xu H. Effects of Tail Vegetable Fermented Feed on the Growth and Rumen Microbiota of Lambs. Animals (Basel) 2024; 14:303. [PMID: 38254472 PMCID: PMC10812633 DOI: 10.3390/ani14020303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 01/04/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
This study explored the impact of integrating fermented feed into the starter diet of lambs, focusing on growth, health, serum antioxidants, immune markers, rumen fermentation, and microbial communities. Thirty-six ten-day-old female Tail Han lambs were randomly divided into three experimental groups, which were separately fed with alfalfa hay (LA group), tail vegetable fermented feed (LB group), and tail vegetable fermented feed supplemented with 0.1% microbial inoculants (LC group) during the experimental period. This study assessed the influence of fermented feed on various parameters, including growth performance, fiber degradation, rumen fermentation, enzymatic activities, and ruminal histomorphology. The results indicate that compared to the control group, the addition of fermented feed can increase the daily weight gain of lambs. Simultaneously, the addition of fermented feed can enhance the total antioxidant capacity of serum (p < 0.05). The addition of fermented feed promoted the increased height of villi in the duodenum or jejunum of lambs (p < 0.05), and the ratio of villi height to crypt depth in the LB and LC groups was also improved (p < 0.05). The addition of fermented feed increased the richness and diversity of the rumen microbial community in lambs (p < 0.05), primarily increasing the relative abundance of Ruminococcus_1, Ruminococcaceae_UCG-005, Lachnospiraceae, and Lachnospiraceae_NK4A136_group.
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Affiliation(s)
- Rui Zhou
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou 730100, China; (R.Z.); (L.W.); (Y.L.); (L.L.)
| | - Lueyu Wang
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou 730100, China; (R.Z.); (L.W.); (Y.L.); (L.L.)
| | - Yaodong Li
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou 730100, China; (R.Z.); (L.W.); (Y.L.); (L.L.)
| | - Huihao Wu
- Experimental Teaching Department, Northwest Minzu University, Lanzhou 730100, China;
| | - Liping Lu
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou 730100, China; (R.Z.); (L.W.); (Y.L.); (L.L.)
| | - Rongxin Zang
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou 730100, China; (R.Z.); (L.W.); (Y.L.); (L.L.)
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou 730030, China
| | - Hongwei Xu
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou 730100, China; (R.Z.); (L.W.); (Y.L.); (L.L.)
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou 730030, China
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