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Velayutham J, Hansda S, Sethy NK, Vashist A, Manickam P. DNA Aptamer Integrated Hydrogel Nanocomposites on Screen Printed Gold Electrodes for Point-of-Care Detection of Testosterone in Human Serum. Chembiochem 2024:e202400294. [PMID: 38742670 DOI: 10.1002/cbic.202400294] [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: 04/04/2024] [Revised: 05/08/2024] [Accepted: 05/14/2024] [Indexed: 05/16/2024]
Abstract
This work describes the development and evaluation of a novel electrochemical aptasensor for testosterone detection. The sensor utilizes a specifically designed DNA immobilized on a screen-printed gold electrode (SPGE) modified with a conductive hydrogel and gold nanoparticles (HG/NP) composite. The aptasensor exhibited a dose-dependent response to testosterone (0.05 to 50 ng/mL) with a detection limit of 0.14 ng/mL and a good sensitivity of 0.23 μA ng-1 mL cm-2. The sensor displayed excellent selectivity towards testosterone compared to structurally similar steroid hormones. Importantly, the incorporation of HG/NP not only improved the sensor's conductivity but also acted as an antifouling layer, minimizing signal interference from non-specific biomolecule interactions in complex biological samples like human serum. The results obtained from the aptasensor showed good correlation with a standard ELISA method, demonstrating its effectiveness in real-world scenarios.
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Affiliation(s)
- Jayasudha Velayutham
- Electrodics and Electrocatalysis Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, 630 003, India
- Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, 201 002, India
| | - Shekhar Hansda
- Corrosion and Materials Protection Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, 630 003, India
- Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, 201 002, India
| | - Niroj K Sethy
- Defence Institute of Physiology and Allied Sciences (DIPAS), Defence Research and Development Organization (DRDO), Delhi, 110 054, India
| | - Arti Vashist
- Department of Immunology and Nanomedicine, Herbert Wertheim College of Medicine, Florida International University, Miami, Florida, 33199, United States
| | - Pandiaraj Manickam
- Electrodics and Electrocatalysis Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, 630 003, India
- Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, 201 002, India
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Azzouz A, Kumar V, Hejji L, Kim KH. Advancements in nanomaterial-based aptasensors for the detection of emerging organic pollutants in environmental and biological samples. Biotechnol Adv 2023; 66:108156. [PMID: 37084799 DOI: 10.1016/j.biotechadv.2023.108156] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/16/2023] [Accepted: 04/15/2023] [Indexed: 04/23/2023]
Abstract
The combination of nanomaterials (NMs) and aptamers into aptasensors enables highly specific and sensitive detection of diverse pollutants. The great potential of aptasensors is recognized for the detection of diverse emerging organic pollutants (EOPs) in different environmental and biological matrices. In addition to high sensitivity and selectivity, NM-based aptasensors have many other advantages such as portability, miniaturization, facile use, and affordability. This work showcases the recent advances achieved in the design and fabrication of NM-based aptasensors for monitoring EOPs (e.g., hormones, phenolic contaminants, pesticides, and pharmaceuticals). On the basis of their sensing mechanisms, the covered aptasensing systems are classified as electrochemical, colorimetric, PEC, fluorescence, SERS, and ECL. Special attention has been paid to the fabrication processes, analytical achievements, and sensing mechanisms of NM-based aptasensors. Further, the practical utility of aptasensing approaches has also been assessed based on their basic performance metrics (e.g., detection limits, sensing ranges, and response times).
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Affiliation(s)
- Abdelmonaim Azzouz
- Department of Chemistry, Faculty of Science, University of Abdelmalek Essaadi, B.P. 2121, M'Hannech II, 93002 Tetouan, Morocco
| | - Vanish Kumar
- National Agri-Food Biotechnology Institute (NABI), Sector 81, SAS Nagar, Mohali, Punjab 140306, India
| | - Lamia Hejji
- Department of Chemistry, Faculty of Science, University of Abdelmalek Essaadi, B.P. 2121, M'Hannech II, 93002 Tetouan, Morocco; Department of Chemical, Environmental, and Materials Engineering, Higher Polytechnic School of Linares, University of Jaén, Campus Científico-Tecnológico, Cinturón Sur s/n, 23700 Linares, Jaén, Spain
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, South Korea.
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Hou Y, Lu X, Yang J, Tang C, Jiang H, Cai T, Chen M, Wei Z, Yu P. A label-free fluorescent aptamer sensor for testosterone based on SYBR Green I. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:1546-1552. [PMID: 36883443 DOI: 10.1039/d3ay00055a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Testosterone is a steroid hormone that plays an indispensable role in the normal metabolism of organisms. However, exogenous testosterone, even as low as nmol L-1, will harm the human body due to accumulation. In this study, we developed an unlabeled fluorescent sensor for testosterone based on SYBR Green I. SYBR Green I is a fluorescent dye that can be embedded into the G-quadruplex of the testosterone aptamer T5. The fluorescence quenching effect is utilized to achieve quantitative detection, which occurs by the competition between testosterone and SYBR Green I for the T5 aptamer binding sites. In this work, we optimized the detection conditions to make the fluorescent sensor more sensitive and verify the specificity, linear range, and detection ability in the buffer and real water samples. The sensor's LOD and LOQ values were 0.27 nmol L-1 and 0.91 nmol L-1, respectively, while the detection range was linear from 0.91 nmol L-1 to 2000 nmol L-1. According to the results, the sensor shows high specificity and good performance even in real sample detection such as tap water and river water, providing an alternative method for the quantitative detection of testosterone in the environment, which is more convenient and efficient.
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Affiliation(s)
- Yucui Hou
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China.
| | - Xiaoling Lu
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China.
| | - Jie Yang
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China.
| | - Chunhua Tang
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China.
| | - Hanbing Jiang
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China.
| | - Tongji Cai
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China.
| | - Meilun Chen
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China.
| | - Zheng Wei
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China.
| | - Peng Yu
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China.
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Affiliation(s)
- David Love
- United States Drug Enforcement Administration, Special Testing and Research Laboratory, USA
| | - Nicole S. Jones
- RTI International, Applied Justice Research Division, Center for Forensic Sciences, 3040 E. Cornwallis Road, Research Triangle Park, NC, 22709-2194, USA,70113th Street, N.W., Suite 750, Washington, DC, 20005-3967, USA,Corresponding author. RTI International, Applied Justice Research Division, Center for Forensic Sciences, 3040 E. Cornwallis Road, Research Triangle Park, NC, 22709-2194, USA.
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5
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Zou D, Gu Y, Luo D, Yang W, Gao R, Cao X, Dong W, Shi H, Zhao H, Liu C. Rapid and ultra-sensitive testosterone detection via aptamer-functional gold nanoparticles. NEW J CHEM 2023. [DOI: 10.1039/d2nj05316k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The capability to monitor doping in a rapid and sensitive manner is highly promising in the field of doping control.
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Affiliation(s)
- Dixin Zou
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, P. R. China
| | - Yujia Gu
- School of Sport Science, Beijing Sport University, Beijing, P. R. China
| | - Dan Luo
- School of Sport Science, Beijing Sport University, Beijing, P. R. China
| | - Weijun Yang
- School of Competitive Sports, Beijing Sport University, Beijing, P. R. China
| | - Ruirui Gao
- School of Sport Science, Beijing Sport University, Beijing, P. R. China
| | - Xin Cao
- School of Sport Science, Beijing Sport University, Beijing, P. R. China
| | - Wei Dong
- School of Sport Science, Beijing Sport University, Beijing, P. R. China
| | - Hanghao Shi
- Department of Physical Education, Jiangnan University, Wuxi, P. R. China
| | - Haotian Zhao
- Department of Physical Education, Jiangnan University, Wuxi, P. R. China
| | - Chang Liu
- School of Sport Science, Beijing Sport University, Beijing, P. R. China
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Liu B, Zheng S, Tang H, Liu Q, Li H, Gao B, Zhao X, Sun F. Highly sensitive detection of free testosterone assisted by magnetic nanobeads and gap-enhanced SERS nanotags. Colloids Surf B Biointerfaces 2022; 214:112460. [PMID: 35298951 DOI: 10.1016/j.colsurfb.2022.112460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 03/07/2022] [Accepted: 03/10/2022] [Indexed: 01/03/2023]
Abstract
The quantitative determination of trace free testosterone (FT) is of great significance for the diagnosis of androgen-related endocrine diseases. Herein, a fascinating detection protocol was developed for highly sensitive FT analysis through a competitive immunoassay mechanism, which was composed of magnetic nanobeads (MNBs) and gap-enhanced surface enhanced Raman scattering (SERS) nanotags. With the MNBs as detection carriers, trace FT could be enriched by simple magnetic separation. The SERS nanotag constructed with silver-gold core-shell nanoparticle was acted as quantitative label, and Raman indicators were located at the interface between silver core and gold shell. It is demonstrated that the as-proposed protocol achieves high detection sensitivity for FT of 12.11 fg mL-1, and wider linear dynamic detection range (LDR) in the concentration of 100 fg mL-1 to 100 ng mL-1 with R2 value of 0.979, which is due to the enhanced Raman signal of the gap-enhanced SERS nanotag and the high surface-to-volume ratio of the MNB, respectively. Taking advantages of such sensitivity and accuracy approach, the as-developed powerful strategy presents potential applications for rapid disease diagnosis through analyzing trace levels of FT, and can also provide guidance for the exploitation of analysis project of other analytes.
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Affiliation(s)
- Bing Liu
- Medical School, Institute of Reproductive Medicine, Nantong University, Nantong 226001, China.
| | - Shiya Zheng
- Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China
| | - Hanyu Tang
- Medical School, Institute of Reproductive Medicine, Nantong University, Nantong 226001, China
| | - Qian Liu
- Medical School, Institute of Reproductive Medicine, Nantong University, Nantong 226001, China
| | - Haitao Li
- Medical School, Institute of Reproductive Medicine, Nantong University, Nantong 226001, China
| | - Bingbing Gao
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, China
| | - Xiangwei Zhao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China; Southeast University Shenzhen Research Institute, Shenzhen 518000, China.
| | - Fei Sun
- Medical School, Institute of Reproductive Medicine, Nantong University, Nantong 226001, China.
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