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Esmaelpourfarkhani M, Ramezani M, Alibolandi M, Abnous K, Taghdisi SM. Signal-off nanozyme-based colorimetric aptasensor for sensitive detection of ampicillin using MnO 2 nanoflowers and gold nanoparticles. Anal Biochem 2024; 687:115459. [PMID: 38182031 DOI: 10.1016/j.ab.2024.115459] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/25/2023] [Accepted: 01/03/2024] [Indexed: 01/07/2024]
Abstract
The combination of nanomaterials possessing distinct characteristics and the precision of aptamers facilitates the creation of biosensors that exhibit exceptional selectivity and sensitivity. In this manuscript, we present a highly sensitive aptasensor that utilizes the distinctive characteristics of MnO2 nanoflowers and gold nanoparticles to selectively detect ampicillin (AMP). In this aptasensor, the mechanism of signal change is attributed to the difference in the oxidase-mimicking activity of MnO2 nanoflowers in the presence of a free sequence. The inclusion of AMP hindered the creation of a double-stranded DNA configuration through its binding to the aptamer, resulting in an observable alteration in absorbance. The relative absorbance varied linearly with the concentration of AMP in the range of 70 pM to 10 nM with a detection limit of 21.7 pM. In general, the colorimetric aptasensor that has been developed exhibits exceptional selectivity and remarkable stability. It also demonstrates favorable performance in human serum, making it a highly reliable diagnostic tool. Additionally, its versatility is noteworthy as it holds great potential for detecting various antibiotics present in complex samples by merely replacing the utilized sequences with new ones.
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Affiliation(s)
- Masoomeh Esmaelpourfarkhani
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Ramezani
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mona Alibolandi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khalil Abnous
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Seyed Mohammad Taghdisi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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Ouyang R, Zhang W, Liu J, Li Y, Zhang J, Jiang L, Zhao Y, Wang H, Dai C, Tamayo AIB, Liu B, Miao Y. Pt Nanodot Inlaid Mesoporous NaBiOF Nanoblackberry for Remarkable Signal Amplification Toward Biomarker Detection. Mikrochim Acta 2023; 190:214. [PMID: 37171612 DOI: 10.1007/s00604-023-05789-w] [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: 12/01/2022] [Accepted: 04/09/2023] [Indexed: 05/13/2023]
Abstract
A new ultrasensitive sandwich-type electrochemical immunosensor has been successfully constructed to quantitatively detect carcinoembryonic antigen (CEA) using blackberry-like mesoporous bismuth-based nanospheres NaBiOF (NBOF NSs) inlaid with Pt nanodots (NDs) (BiPt NSs) as the antibody capture and signal-amplifying probe. The growth of Pt NDs inside the holes of NBOF NSs formed the nanozyme inlay outside NBOF NSs, greatly increasing the specific surface area and exposure of the catalytic active sites by minimizing the particle size of the Pt to nanodot scale. Such a blackberry-shaped heterojunction structure of BiPt NSs was well-suited to antibody capture and improved the catalytic performance of BiPt NSs in reducing H2O2, amplifying the signal, and yielding highly sensitive detection of CEA. The use of Au nanoparticle-modified multi-walled carbon nanotubes (Au@MWCNTs) as the electrode substrates significantly enhanced the electron transfer behavior over the electrode surface, further increasing the conductivity and sensitivity of the immunosensor. Remarkably, good compatibility with human body fluid was achieved using the newly developed BiPt-based immunosensor resulting from the favorable biocompatibility and stability of both BiPt NSs and Au@MWCNTs. Benefiting from the double signal amplification strategy and the high biocompatibility, the immunosensor responded linearly to CEA in a wide range from 50 fg/mL to 100 ng/ml with an extremely low detection limit of 3.52 fg/mL (S/N = 3). The excellent detection properties of this new immunosensor were evidenced by the satisfactory selectivity, reproducibility, and stability obtained, as well as the reliable and precise determination of CEA in actual human blood samples. This work provides a new strategy for the early clinical diagnosis of cancer. Novel blackberry-like mesoporous NaBiOF nanospheres with Pt nanodot inlay were successfully usedto construct a sandwich-type electrochemical immunosensor for the ultra-sensitive detection ofcarcinoembryonic antigen in human blood plasma based on a remarkable signal amplification strategy.
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Affiliation(s)
- Ruizhuo Ouyang
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai, 200093, China.
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China.
| | - Weilun Zhang
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Jinyao Liu
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Yuhao Li
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Jing Zhang
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Lan Jiang
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Yuefeng Zhao
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Hui Wang
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Chenyu Dai
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Abel Ibrahim Balbín Tamayo
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China
- Faculty of Chemistry, University of Havana, 10400, Havana, Cuba
| | - Baolin Liu
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China.
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China.
| | - Yuqing Miao
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai, 200093, China.
- USST-UH International Joint Laboatory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai, 200093, China.
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