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Li P, Qiang L, Han Y, Chu Y, Qiu J, Song F, Wang M, He Q, Zhang Y, Sun M, Li C, Song S, Liu Y, Han L, Zhang Y. A Sensitive and Portable Double-Layer Microfluidic Biochip for Harmful Algae Detection. MICROMACHINES 2022; 13:1759. [PMID: 36296112 PMCID: PMC9611269 DOI: 10.3390/mi13101759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
Harmful algal blooms (HABs) are common disastrous ecological anomalies in coastal waters. An effective algae monitoring approach is important for natural disaster warning and environmental governance. However, conducting rapid and sensitive detection of multiple algae is still challenging. Here, we designed an ultrasensitive, rapid and portable double-layer microfluidic biochip for the simultaneous quantitative detection of six species of algae. Specific DNA probes based on the 18S ribosomal DNA (18S rDNA) gene fragments of HABs were designed and labeled with the fluorescent molecule cyanine-3 (Cy3). The biochip had multiple graphene oxide (GO) nanosheets-based reaction units, in which GO nanosheets were applied to transfer target DNA to the fluorescence signal through a photoluminescence detection system. The entire detection process of multiple algae was completed within 45 min with the linear range of fluorescence recovery of 0.1 fM-100 nM, and the detection limit reached 108 aM. The proposed approach has a simple detection process and high detection performance and is feasible to conduct accurate detection with matched portable detection equipment. It will have promising applications in marine natural disaster monitoring and environmental care.
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Affiliation(s)
- Ping Li
- Institute of Marine Science and Technology, Shandong University, Qingdao 266000, China
| | - Le Qiang
- Institute of Marine Science and Technology, Shandong University, Qingdao 266000, China
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an 710004, China
- Department of Endodontics, Hospital of Stomatology, Xi’an Jiaotong University, Xi’an 710004, China
| | - Yingkuan Han
- Institute of Marine Science and Technology, Shandong University, Qingdao 266000, China
| | - Yujin Chu
- Institute of Marine Science and Technology, Shandong University, Qingdao 266000, China
| | - Jiaoyan Qiu
- Institute of Marine Science and Technology, Shandong University, Qingdao 266000, China
| | - Fangteng Song
- Institute of Marine Science and Technology, Shandong University, Qingdao 266000, China
| | - Min Wang
- Institute of Marine Science and Technology, Shandong University, Qingdao 266000, China
| | - Qihang He
- Institute of Marine Science and Technology, Shandong University, Qingdao 266000, China
| | - Yunhong Zhang
- Institute of Marine Science and Technology, Shandong University, Qingdao 266000, China
| | - Mingyuan Sun
- Institute of Marine Science and Technology, Shandong University, Qingdao 266000, China
| | - Caiwen Li
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Shuqun Song
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Yun Liu
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Lin Han
- Institute of Marine Science and Technology, Shandong University, Qingdao 266000, China
| | - Yu Zhang
- Institute of Marine Science and Technology, Shandong University, Qingdao 266000, China
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A review of spectroscopic probes constructed from aptamer-binding gold/silver nanoparticles or their dimers in environmental pollutants' detection. ANAL SCI 2022; 38:1247-1259. [PMID: 35930232 DOI: 10.1007/s44211-022-00168-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 07/19/2022] [Indexed: 11/01/2022]
Abstract
The issue of environmental pollutant residues has gained wide public attention all along. Therefore, it is necessary to develop simple, rapid, economical, portable, and sensitive detection techniques, which have become the focus of research in the pollutants detection field. Spectroscopy is one of the most convenient, simple, rapid, and intuitive analytical tools that can provide accurate information, such as ultraviolet spectroscopy, fluorescence spectroscopy, Raman spectroscopy, plasmon resonance spectroscopy, etc. Gold nanoparticles, silver nanoparticles, and their dimers with unique optical properties are commonly used in the construction of spectroscopic probes. As a class of oligonucleotides that can recognize specific target molecules, aptamers also have a strong ability to recognize small-molecule pollutants. The application of aptamer-binding metal nanoparticles in biosensing detection presents significant advantages for instance high sensitivity, good selectivity, and rapid analysis. And many spectroscopic probes constructed by aptamer-binding gold nanoparticles, silver nanoparticles, or their dimers have been successfully demonstrated for detecting pollutants. This review summarizes the progress, advantages, and disadvantages of aptamer sensing techniques constructed by visual colorimetric, fluorescence, Raman, and plasmon resonance spectroscopic probes combining gold/silver nanoparticles or their dimers in the field of pollutants detection, and discusses the prospects and challenges for their future.
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Bardajee GR, Zamani M, Sharifi M, Rezanejad H, Motallebi M. Rapid and Highly Sensitive Detection of Target DNA Related to COVID-19 Virus With a Fluorescent Bio-conjugated Probe via a FRET Mechanism. J Fluoresc 2022; 32:1959-1967. [PMID: 35781766 DOI: 10.1007/s10895-022-02992-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 05/31/2022] [Indexed: 10/17/2022]
Abstract
A novel cyanine 3 (Cy3)-based bio-conjugated sensor has been developed to detect target DNA or extracted RNA from COVID -19 samples using the fluorescence resonance energy transfer (FRET) experiment. A special sequence of the COVID -19 genome was selected as a complementary DNA (target DNA) part. The opposite chain of this target sequence was designed in 2 parts; one part was attached to the Cy3 organic dye (capture DNA or Cy3- DNA), and the other part was attached to the BHQ2 molecule (quencher DNA or BHQ2- DNA). The Cy3 molecule acts as a donor pair, and BHQ2 acts as an acceptor pair in the FRET experiment. The capture DNA and quencher DNA can form a sandwiched complex in the presence of target DNA. The formation of the entitled sandwiched hybrid causes the decrement of emission intensity of the Cy3 donor in bio-conjugated Cy3-DNA via energy transfer from Cy3 (as a donor) to BHQ2 (as an acceptor). Indeed, in the presence of non-complementary DNA, the pairing of DNA strands does not occur, the FRET phenomenon does not exist, and therefore fluorescence intensity of Cy3 does not decrease. Moreover, this biosensor was successfully applied to analyze real samples containing extracted RNA of COVID -19 prepared for the reverse transcriptase-polymerase chain reaction (RT-PCR) test, and the results were promising.
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Affiliation(s)
| | - Mohammadreza Zamani
- Department of Plant Biotechnology, National Institute for Genetic Engineering and Biotechnology (NIGEB), Tehran, 14155-6343, PO BOX, Iran
| | - Mahdieh Sharifi
- Department of Chemistry, Payame Noor University, Tehran, PO BOX 19395-3697, Iran
| | - Habib Rezanejad
- Department of Biological Sciences, MacEwan University, Edmonton, Canada
| | - Mostafa Motallebi
- Department of Plant Biotechnology, National Institute for Genetic Engineering and Biotechnology (NIGEB), Tehran, 14155-6343, PO BOX, Iran
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Yang J, Zhang Y, Zhao J, Ma J, Yi C. Development of gold nanoparticles-aptamer nanocomposite for multiplexed analysis of antibiotics and design of molecular logic gates. NANOTECHNOLOGY 2021; 33:015501. [PMID: 34598169 DOI: 10.1088/1361-6528/ac2c41] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 10/01/2021] [Indexed: 06/13/2023]
Abstract
The widespread use of antibiotics caused severe problems of antibiotic residues in foodstuffs and water, posing a serious threat to public health and thus urging the development of sensitive, selective, and rapid detection methods for antibiotics. In this study, a fluorescence resonance energy transfer (FRET)-based system is developed for the multiplexed analysis of chloramphenicol (CAP) and streptomycin (Strep) with detection limits of 2.51 and 8.69μg l-1, respectively. The FRET-based system consists of Cy3-tagged anti-CAP aptamer-conjugated gold nanoparticles (AuNPs) (referred to as AuNPs-AptCAP) and Cy5-tagged anti-Strep aptamer-conjugated AuNPs (referred to as AuNPs-AptStrep). In addition, AuNPs-AptCAP and AuNPs-AptStrep have been demonstrated to serve as signal transducers for implementing a series of logic operations such as YES, NOT, INH, OR, (2-4)-Decoder and even more complicated multi-level logic gates (OR-INH). Based on the outputs of logic operations, it could be figured out whether targeted analytes were present or not, thus enabling multiplex sensing and evaluation of pollution status. This proof of concept study might provide a new route for the enhanced sensing performance to distinguish different pollution status as well as the design of molecular mimics of logic elements to demonstrate better applicability.
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Affiliation(s)
- Jun Yang
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, People's Republic of China
| | - Yali Zhang
- Shenzhen Second People's Hospital, Shenzhen 518035, People's Republic of China
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices, School of Biomedical Engineering, Sun Yat-Sen University, Shenzhen 518107, People's Republic of China
| | - Junkai Zhao
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices, School of Biomedical Engineering, Sun Yat-Sen University, Shenzhen 518107, People's Republic of China
| | - Junping Ma
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices, School of Biomedical Engineering, Sun Yat-Sen University, Shenzhen 518107, People's Republic of China
| | - Changqing Yi
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices, School of Biomedical Engineering, Sun Yat-Sen University, Shenzhen 518107, People's Republic of China
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Wang Y, Chen L, Xuan T, Wang J, Wang X. Label-free Electrochemical Impedance Spectroscopy Aptasensor for Ultrasensitive Detection of Lung Cancer Biomarker Carcinoembryonic Antigen. Front Chem 2021; 9:721008. [PMID: 34350159 PMCID: PMC8326396 DOI: 10.3389/fchem.2021.721008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Accepted: 07/07/2021] [Indexed: 01/13/2023] Open
Abstract
In this work, an integrated electrode system consisting of a graphene working electrode, a carbon counter electrode and an Ag/AgCl reference electrode was fabricated on an FR-4 glass fiber plate by a polyethylene self-adhesive mask stencil method combined with a manual screen printing technique. The integrated graphene electrode was used as the base electrode, and AuNPs were deposited on the working electrode surface by cyclic voltammetry. Then, the carcinoembryonic antigen aptamer was immobilized using the sulfhydryl self-assembly technique. The sensor uses [Fe(CN)6]3-/4- as a redox probe for label free detection of carcinoembryonic antigen based on the impedance change caused by the difference in electron transfer rate before and after the binding of carcinoembryonic antigen aptamer and the target carcinoembryonic antigen. The results showed a good linear relationship when the CEA concentration is in the range of 0.2-15.0 ng/ml. The detection limit was calculated to be 0.085 ng/ml (S/N = 3).
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Affiliation(s)
- Yawei Wang
- Department of Medical Oncology, Qilu Hospital, Shandong University, Jinan, China
| | - Lei Chen
- Shandong Academy of Pharmaceutical Sciences, Jinan, China
| | - Tiantian Xuan
- Department of Medical Oncology, Qilu Hospital, Shandong University, Jinan, China
| | - Jian Wang
- Department of Medical Oncology, Qilu Hospital, Shandong University, Jinan, China
| | - Xiuwen Wang
- Department of Medical Oncology, Qilu Hospital, Shandong University, Jinan, China
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Logic Gates Based on DNA Aptamers. Pharmaceuticals (Basel) 2020; 13:ph13110417. [PMID: 33238657 PMCID: PMC7700249 DOI: 10.3390/ph13110417] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/19/2020] [Accepted: 11/20/2020] [Indexed: 02/08/2023] Open
Abstract
DNA bio-computing is an emerging trend in modern science that is based on interactions among biomolecules. Special types of DNAs are aptamers that are capable of selectively forming complexes with target compounds. This review is devoted to a discussion of logic gates based on aptamers for the purposes of medicine and analytical chemistry. The review considers different approaches to the creation of logic gates and identifies the general algorithms of their creation, as well as describes the methods of obtaining an output signal which can be divided into optical and electrochemical. Aptameric logic gates based on DNA origami and DNA nanorobots are also shown. The information presented in this article can be useful when creating new logic gates using existing aptamers and aptamers that will be selected in the future.
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