151
|
Badie Bostan H, Danesh NM, Karimi G, Ramezani M, Mousavi Shaegh SA, Youssefi K, Charbgoo F, Abnous K, Taghdisi SM. Ultrasensitive detection of ochratoxin A using aptasensors. Biosens Bioelectron 2017; 98:168-179. [PMID: 28672192 DOI: 10.1016/j.bios.2017.06.055] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 06/22/2017] [Accepted: 06/25/2017] [Indexed: 12/28/2022]
Abstract
Regarding teratogenic, carcinogenic, and immunotoxic nature of ochratoxin A (OTA), selective and sensitive monitoring of this molecule in food samples is of great importance. In recent years, various methods have been introduced for detection of OTA. However, they are usually time-consuming, labor-intensive and expensive. Therefore, these parameters limited their usage. The emerging method of detection, aptasensor, has attracted more attention for OTA detection, due to distinctive advantages including high sensitivity, selectivity and simplicity. In this review, the new developed aptasensors for detection of OTA have been investigated. We also highlighted advantages and disadvantages of different types of OTA aptasensors. This review also takes into consideration the goal to find out which designs are the most rational ones for highly sensitive detection of OTA.
Collapse
Affiliation(s)
- Hasan Badie Bostan
- Pharmaceutical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Noor Mohammad Danesh
- Nanotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Research Institute of Sciences and New Technology, Mashhad, Iran; Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gholamreza Karimi
- Pharmaceutical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Ramezani
- Nanotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Kazem Youssefi
- Department of English, Tabaran Institute of Higher Education, Mashhad, Iran
| | - Fahimeh Charbgoo
- Pharmaceutical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khalil Abnous
- Pharmaceutical Research Center, 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, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| |
Collapse
|
152
|
Ansari N, Yazdian-Robati R, Shahdordizadeh M, Wang Z, Ghazvini K. Aptasensors for quantitative detection of Salmonella Typhimurium. Anal Biochem 2017. [PMID: 28624297 DOI: 10.1016/j.ab.2017.06.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Salmonella is one of the most frequent causes of food borne infectious disease. Among nearly 2500 documented serotypes are reported, Salmonella Typhimurium is the number one serotype associated with salmonellosis worldwide. Many different methods have been developed for the detection and quantification of S. typhimurium. Most of these assays are usually expensive, time consuming and require difficult sample preparation steps. Therefore, it is necessary to develop rapid, robust, cost-effective and sensitive alternative detection methods. In the last years, aptasensors, used for detection of S. typhimurium in different samples. In this review, recent advances and applications of aptasensors for the detection and quantification of S. typhimurium in details have been summarized.
Collapse
Affiliation(s)
- Najmeh Ansari
- Department of Microbiology and Virology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Rezvan Yazdian-Robati
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahin Shahdordizadeh
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zhouping Wang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Kiarash Ghazvini
- Antimicrobial Resistance Research Center, Buali Research Institute, Department of Microbiology and Virology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| |
Collapse
|
153
|
Impedimetric biosensor based on bimetallic AgPt nanoparticle-decorated carbon nanotubes as highly conductive film surface. J Solid State Electrochem 2017. [DOI: 10.1007/s10008-017-3532-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
154
|
Qin S, Chen N, Yang X, Wang Q, Wang K, Huang J, Liu J, Zhou M. Development of Dual-Aptamers for Constructing Sandwich-Type Pancreatic Polypeptide Assay. ACS Sens 2017; 2:308-315. [PMID: 28723135 DOI: 10.1021/acssensors.6b00836] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Pancreatic polypeptide (PP) is a specific biomarker of nonfunctional pancreatic neuroendocrine tumors (NF-pNETs). Clinical significance of PP inspires researchers to make great efforts in developing sensitive and specific sensors. However, there is no existing biosensor for detecting PP that combines facility and functionality. Addressing this challenge, a pair of aptamers which could be used to develop a sandwich assay for PP is reported. First, several high affinity aptamers are screened through graphene oxide-based SELEX, and appropriate dual-aptamers which could bind to different epitopes of PP are identified through fluorescence assays. Then the feasibility of the dual-aptamers for constructing the sandwich assay is validated via dynamic light scattering. This sandwich assay shows considerable sensitivity and specificity. The above results imply that the dual-aptamers have the potential toward developing novel sensors for PP in clinical samples.
Collapse
Affiliation(s)
- Shiya Qin
- State Key Laboratory
of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Key
Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan
Province, Hunan University, Changsha 410082, China
| | - Nandi Chen
- State Key Laboratory
of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Key
Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan
Province, Hunan University, Changsha 410082, China
| | - Xiaohai Yang
- State Key Laboratory
of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Key
Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan
Province, Hunan University, Changsha 410082, China
| | - Qing Wang
- State Key Laboratory
of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Key
Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan
Province, Hunan University, Changsha 410082, China
| | - Kemin Wang
- State Key Laboratory
of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Key
Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan
Province, Hunan University, Changsha 410082, China
| | - Jin Huang
- State Key Laboratory
of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Key
Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan
Province, Hunan University, Changsha 410082, China
| | - Jianbo Liu
- State Key Laboratory
of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Key
Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan
Province, Hunan University, Changsha 410082, China
| | - Maogui Zhou
- State Key Laboratory
of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Key
Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan
Province, Hunan University, Changsha 410082, China
| |
Collapse
|
155
|
Babaei M, Jalalian SH, Bakhtiari H, Ramezani M, Abnous K, Taghdisi SM. Aptamer-Based Fluorescent Switch for Sensitive Detection of Oxytetracycline. Aust J Chem 2017. [DOI: 10.1071/ch16562] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Oxytetracycline (OTC) is one of the most used antibiotics in veterinary medicine. There is a large concern about developing antibiotic resistance in humans as a result of the consumption of products contaminated with OTC, so a fast detection technique for an on-field screening test is highly in demand. Here we introduce a novel aptasensor for fast detection of OTC, based on a triple helix molecular switch (THMS) complex formation. The limit of detection (LOD) of this sensor was 1.67 and 6.44 nM in phosphate buffer and milk samples, respectively. Moreover, the sensor showed a high selectivity towards OTC.
Collapse
|
156
|
Mei Z, Tang L. Surface-Plasmon-Coupled Fluorescence Enhancement Based on Ordered Gold Nanorod Array Biochip for Ultrasensitive DNA Analysis. Anal Chem 2016; 89:633-639. [PMID: 27991768 DOI: 10.1021/acs.analchem.6b02797] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
An innovative gold nanorod (GNR) array biochip was developed to systematically investigate the localized surface plasmon resonance (LSPR)-coupled fluorescence enhancement for signal amplification in molecular beacon detection. An ordered GNR assembly in vertical standing array on a glass surface was fabricated as plasmonic substrates, resulting in dramatically intensified LSPR between adjacent nanoparticles as compared to that from an ensemble of random nanorods. We have shown that the plasmonic response of the nanoarray can be tuned by the proper choice of GNR size to overlap the fluorophore excitation and emission wavelengths greater than 600 nm. Plasmon-induced fluorescence enhancement was found to be distance-dependent with the competition between quenching and enhancement by the metal nanostructures. The augmented fluorescence enhancement by the GNR array can efficiently overcome the quenching effect of the gold nanoparticle even at close proximity. The enhancement correlates with the spectral overlap between the fluorophore excitation/emission and the plasmonic resonance of the GNR array, indicating a surface-plasmon-enhanced excitation and radiative mechanism for the amplification. From these results, the applicability of the ordered GNR array chip was extended to molecular fluorescence enhancement for practical use as a highly functional and ultrasensitive plasmonic DNA biochip in molecular beacon fashion.
Collapse
Affiliation(s)
- Zhong Mei
- Department of Biomedical Engineering, University of Texas at San Antonio , San Antonio, Texas 78249, United States
| | - Liang Tang
- Department of Biomedical Engineering, University of Texas at San Antonio , San Antonio, Texas 78249, United States
| |
Collapse
|
157
|
Rhouati A, Catanante G, Nunes G, Hayat A, Marty JL. Label-Free Aptasensors for the Detection of Mycotoxins. SENSORS 2016; 16:s16122178. [PMID: 27999353 PMCID: PMC5191157 DOI: 10.3390/s16122178] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 12/08/2016] [Accepted: 12/14/2016] [Indexed: 01/13/2023]
Abstract
Various methodologies have been reported in the literature for the qualitative and quantitative monitoring of mycotoxins in food and feed samples. Based on their enhanced specificity, selectivity and versatility, bio-affinity assays have inspired many researchers to develop sensors by exploring bio-recognition phenomena. However, a significant problem in the fabrication of these devices is that most of the biomolecules do not generate an easily measurable signal upon binding to the target analytes, and signal-generating labels are required to perform the measurements. In this context, aptamers have been emerged as a potential and attractive bio-recognition element to design label-free aptasensors for various target analytes. Contrary to other bioreceptor-based approaches, the aptamer-based assays rely on antigen binding-induced conformational changes or oligomerization states rather than binding-assisted changes in adsorbed mass or charge. This review will focus on current designs in label-free conformational switchable design strategies, with a particular focus on applications in the detection of mycotoxins.
Collapse
Affiliation(s)
- Amina Rhouati
- BAE Laboratory, Université de Perpignan Via Domitia, 52 Avenue Paul Alduy, Perpignan 66860, France.
- Ecole Nationale Supérieure de Biotechnologie, Constantine 25100, Algeria.
| | - Gaelle Catanante
- BAE Laboratory, Université de Perpignan Via Domitia, 52 Avenue Paul Alduy, Perpignan 66860, France.
| | - Gilvanda Nunes
- Technological Chemistry Department, Federal University of Maranhão, CCET/UFMA, Av. Portugueses, Cidade Universitária do Canga, 65080-040 São Luis, Brazil.
| | - Akhtar Hayat
- BAE Laboratory, Université de Perpignan Via Domitia, 52 Avenue Paul Alduy, Perpignan 66860, France.
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM) COMSATS Institute of Information Technology (CIIT), Lahore 54000, Pakistan.
| | - Jean-Louis Marty
- BAE Laboratory, Université de Perpignan Via Domitia, 52 Avenue Paul Alduy, Perpignan 66860, France.
| |
Collapse
|
158
|
Gao Z, Qiu Z, Lu M, Shu J, Tang D. Hybridization chain reaction-based colorimetric aptasensor of adenosine 5'-triphosphate on unmodified gold nanoparticles and two label-free hairpin probes. Biosens Bioelectron 2016; 89:1006-1012. [PMID: 27825528 DOI: 10.1016/j.bios.2016.10.043] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 10/18/2016] [Accepted: 10/19/2016] [Indexed: 11/29/2022]
Abstract
This work designs a new label-free aptasensor for the colorimetric determination of small molecules (adenosine 5'-triphosphate, ATP) by using visible gold nanoparticles as the signal-generation tags, based on target-triggered hybridization chain reaction (HCR) between two hairpin DNA probes. The assay is carried out referring to the change in the color/absorbance by salt-induced aggregation of gold nanoparticles after the interaction with hairpins, gold nanoparticles and ATP. To construct such an assay system, two hairpin DNA probes with a short single-stranded DNA at the sticky end are utilized for interaction with gold nanoparticles. In the absence of target ATP, the hairpin DNA probes can prevent gold nanoparticles from the salt-induced aggregation through the interaction of the single-stranded DNA at the sticky end with gold nanoparticles. Upon target ATP introduction, the aptamer-based hairpin probe is opened to expose a new sticky end for the strand-displacement reaction with another complementary hairpin, thus resulting in the decreasing single-stranded DNA because of the consumption of hairpins. In this case, gold nanoparticles are uncovered owing to the formation of double-stranded DNA, which causes their aggregation upon addition of the salt, thereby leading to the change in the red-to-blue color. Under the optimal conditions, the HCR-based colorimetric assay presents good visible color or absorbance responses for the determination of target ATP at a concentration as low as 1.0nM. Importantly, the methodology can be further extended to quantitatively or qualitatively monitor other small molecules or biotoxins by changing the sequence of the corresponding aptamer.
Collapse
Affiliation(s)
- Zhuangqiang Gao
- Key Laboratory of Analysis and Detection for Food Safety (MOE & Fujian Province), Collaborative Innovation Center of Detection Technology for Haixi Food Safety and Products (Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou University, Fuzhou 350116, PR China
| | - Zhenli Qiu
- Key Laboratory of Analysis and Detection for Food Safety (MOE & Fujian Province), Collaborative Innovation Center of Detection Technology for Haixi Food Safety and Products (Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou University, Fuzhou 350116, PR China
| | - Minghua Lu
- Institute of Environmental and Analytical Science, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, PR China.
| | - Jian Shu
- Key Laboratory of Analysis and Detection for Food Safety (MOE & Fujian Province), Collaborative Innovation Center of Detection Technology for Haixi Food Safety and Products (Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou University, Fuzhou 350116, PR China
| | - Dianping Tang
- Key Laboratory of Analysis and Detection for Food Safety (MOE & Fujian Province), Collaborative Innovation Center of Detection Technology for Haixi Food Safety and Products (Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou University, Fuzhou 350116, PR China.
| |
Collapse
|
159
|
G-quadruplex aptamer targeting Protein A and its capability to detect Staphylococcus aureus demonstrated by ELONA. Sci Rep 2016; 6:33812. [PMID: 27650576 PMCID: PMC5030626 DOI: 10.1038/srep33812] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 08/24/2016] [Indexed: 01/15/2023] Open
Abstract
Aptamers for whole cell detection are selected mostly by the Cell-SELEX procedure. Alternatively, the use of specific cell surface epitopes as target during aptamer selections allows the development of aptamers with ability to bind whole cells. In this study, we integrated a formerly selected Protein A-binding aptamer PA#2/8 in an assay format called ELONA (Enzyme-Linked OligoNucleotide Assay) and evaluated the ability of the aptamer to recognise and bind to Staphylococcus aureus presenting Protein A on the cell surface. The full-length aptamer and one of its truncated variants could be demonstrated to specifically bind to Protein A-expressing intact cells of S. aureus, and thus have the potential to expand the portfolio of aptamers that can act as an analytical agent for the specific recognition and rapid detection of the bacterial pathogen. The functionality of the aptamer was found to be based on a very complex, but also highly variable structure. Two structural key elements were identified. The aptamer sequence contains several G-clusters allowing folding into a G-quadruplex structure with the potential of dimeric and multimeric assembly. An inverted repeat able to form an imperfect stem-loop at the 5'-end also contributes essentially to the aptameric function.
Collapse
|
160
|
Voltammetric Aptasensor Based on Magnetic Beads Assay for Detection of Human Activated Protein C. Methods Mol Biol 2016; 1380:163-70. [PMID: 26552824 DOI: 10.1007/978-1-4939-3197-2_13] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Aptamers are defined as new generation of nucleic acids, which has recently presented promising specifications over to antibodies. An increasing number of electrochemical studies related to aptamer-based sensors, so-called aptasensors have been introduced in the literature. Herein, the interaction between human activated protein C (APC) and its cognate DNA aptamer (DNA APT) was performed at the surface of magnetic beads (MBs), followed by voltammetric detection using disposable graphite electrodes (PGEs).
Collapse
|
161
|
Qi Y, Xiu FR, Yu G, Huang L, Li B. Simple and rapid chemiluminescence aptasensor for Hg 2+ in contaminated samples: A new signal amplification mechanism. Biosens Bioelectron 2016; 87:439-446. [PMID: 27591718 DOI: 10.1016/j.bios.2016.08.022] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 08/06/2016] [Accepted: 08/08/2016] [Indexed: 11/16/2022]
Abstract
Detection of ultralow concentration of heavy metal ion Hg2+ is important for human health protection and environment monitoring because of the gradual accumulation in environmental and biological fields. Herein, we report a convenient chemiluminescence (CL) biosensing platform for ultrasensitive Hg2+ detection by signal amplification mechanism from positively charged gold nanoparticles ((+)AuNPs). It is based on (+)AuNPs charge effect and aptamer conformation change induced by target to stimulate the generation of CL in the presence of H2O2 and luminol without high salt medium. Notably particularly, the typical problem of the high salt medium from (-) AuNPs system, like influencing aptamers' bind with target and hindering CL reaction can be effectively addressed through the direct introduction of (+)AuNPs. Therefore, the proposed biosensing exhibits a high sensitivity toward target Hg2+ with a detection limit of 16 pM, which is far below the limit (10nM) defined by the U.S. Environmental Protection Agency in drinkable water, and is about 10-fold lower than the previously reported aptamer-based assays for Hg2+. This sensing platform provides a simple, rapid, and cost-effective approach for label-free sensitive detection of Hg2+. Moreover, it is universal for the detection of other targets. Undoubtedly, such a direct utilizing of (+)AuNPs' charge effect will provide a new signal amplification way for label-free aptamer-based CL analysis.
Collapse
Affiliation(s)
- Yingying Qi
- College of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou, 350108 PR China.
| | - Fu-Rong Xiu
- College of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou, 350108 PR China
| | - Gending Yu
- College of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou, 350108 PR China
| | - Lili Huang
- College of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou, 350108 PR China
| | - Baoxin Li
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062 PR China
| |
Collapse
|
162
|
Azadbakht A, Roushani M, Abbasi AR, Derikvand Z. A novel impedimetric aptasensor, based on functionalized carbon nanotubes and prussian blue as labels. Anal Biochem 2016; 512:58-69. [PMID: 27515992 DOI: 10.1016/j.ab.2016.08.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Revised: 08/05/2016] [Accepted: 08/08/2016] [Indexed: 12/25/2022]
Abstract
A simple and feasible electrochemical sensing protocol was developed for the detection of bisphenol A (BPA) by employing the gold nanoparticles (AuNPs), prussian blue (PB) and functionalized carbon nanotubes (AuNPs/PB/CNTs-COOH). An aminated complementary DNA as a capture probe and specific aptamer against BPA as a detection probe was immobilized on the surface of a modified glassy carbon (GC) electrode via the formation of covalent amide bond and hybridization, respectively. The proposed nanoaptasensor combined the advantages of the in situ formation of PB as a label, the deposition of neatly arranged AuNPs, and the covalent attachment of the capture probe to the surface of the modified electrode. Upon addition of target BPA, the analyte reacted with the aptamer and caused the steric/conformational restrictions on the sensing interface. The formation of BPA-aptamer complex at the electrode surface retarded the interfacial electron transfer reaction of the PB as a probe. Sensitive quantitative detection of BPA was carried out based on the variation of electron transfer resistance which relevant to the formation of BPA- aptamer complex at the modified electrode surface. Under the optimized conditions, the proposed aptasensor exhibited a high sensitivity, wide linearity to BPA and low detection limit. This aptasensor also displayed a satisfying electrochemical performance with good stability, selectivity and reproducibility.
Collapse
Affiliation(s)
- Azadeh Azadbakht
- Department of Chemistry, Khorramabad Branch, Islamic Azad University, Khorramabad, Iran.
| | | | - Amir Reza Abbasi
- Department of Chemistry, Khorramabad Branch, Islamic Azad University, Khorramabad, Iran
| | - Zohreh Derikvand
- Department of Chemistry, Khorramabad Branch, Islamic Azad University, Khorramabad, Iran
| |
Collapse
|
163
|
Rajendran M, Dane E, Conley J, Tantama M. Imaging Adenosine Triphosphate (ATP). THE BIOLOGICAL BULLETIN 2016; 231:73-84. [PMID: 27638696 PMCID: PMC5063237 DOI: 10.1086/689592] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Adenosine triphosphate (ATP) is a universal mediator of metabolism and signaling across unicellular and multicellular species. There is a fundamental interdependence between the dynamics of ATP and the physiology that occurs inside and outside the cell. Characterizing and understanding ATP dynamics provide valuable mechanistic insight into processes that range from neurotransmission to the chemotaxis of immune cells. Therefore, we require the methodology to interrogate both temporal and spatial components of ATP dynamics from the subcellular to the organismal levels in live specimens. Over the last several decades, a number of molecular probes that are specific to ATP have been developed. These probes have been combined with imaging approaches, particularly optical microscopy, to enable qualitative and quantitative detection of this critical molecule. In this review, we survey current examples of technologies available for visualizing ATP in living cells, and identify areas where new tools and approaches are needed to expand our capabilities.
Collapse
Affiliation(s)
- Megha Rajendran
- Department of Chemistry, Purdue University, 560 Oval Drive, Box 68, West Lafayette, Indiana 47907; and
| | - Eric Dane
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, 76-211, Cambridge, Massachusetts 02139
| | - Jason Conley
- Department of Chemistry, Purdue University, 560 Oval Drive, Box 68, West Lafayette, Indiana 47907; and
| | - Mathew Tantama
- Department of Chemistry, Purdue University, 560 Oval Drive, Box 68, West Lafayette, Indiana 47907; and
| |
Collapse
|
164
|
Liu X, Li Y, Liang J, Zhu W, Xu J, Su R, Yuan L, Sun C. Aptamer contained triple-helix molecular switch for rapid fluorescent sensing of acetamiprid. Talanta 2016; 160:99-105. [PMID: 27591592 DOI: 10.1016/j.talanta.2016.07.010] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 06/26/2016] [Accepted: 07/03/2016] [Indexed: 02/02/2023]
Abstract
In this study, an aptamer-based fluorescent sensing platform using triple-helix molecular switch (THMS) was developed for the pesticide screening represented by acetamiprid. The THMS was composed of two tailored DNA probes: a label-free central target specific aptamer sequence flanked by two arm segments acting as a recognition probe; a hairpin-shaped structure oligonucleotide serving as a signal transduction probe (STP), labeled with a fluorophore and a quencher at the 3' and 5'-end, respectively. In the absence of acetamiprid, complementary bindings of two arm segments of the aptamers with the loop sequence of STP enforce the formation of THMS with the "open" configuration of STP, and the fluorescence of THMS is on. In the presence of target acetamiprid, the aptamer-target binding results in the formation of a structured aptamer/target complex, which disassembles the THMS and releases the STP. The free STP is folded to a stem loop structure, and the fluorescence is quenched. The quenched fluorescence intensity was proportional to the concentration of acetamiprid in the range from 100 to 1200nM, with the limit of detection (LOD) as low as 9.12nM. In addition, this THMS-based method has been successfully used to test and quantify acetamiprid in Chinese cabbage with satisfactory recoveries, and the results were in full agreement with those from LC-MS. The aptamer-based THMS presents distinct advantages, including high stability, remarkable sensitivity, and preservation of the affinity and specificity of the original aptamer. Most importantly, this strategy is convenient and generalizable by virtue of altering the aptamer sequence without changing the triple-helix structure. So, it is expected that this aptamer-based fluorescent assay could be extensively applied in the field of food safety inspection.
Collapse
Affiliation(s)
- Xin Liu
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Ying Li
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Jing Liang
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Wenyue Zhu
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Jingyue Xu
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Ruifang Su
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Lei Yuan
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Chunyan Sun
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun 130062, China.
| |
Collapse
|
165
|
Qiao Y, Li J, Li H, Fang H, Fan D, Wang W. A label-free photoelectrochemical aptasensor for bisphenol A based on surface plasmon resonance of gold nanoparticle-sensitized ZnO nanopencils. Biosens Bioelectron 2016; 86:315-320. [PMID: 27387262 DOI: 10.1016/j.bios.2016.06.062] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Revised: 06/18/2016] [Accepted: 06/21/2016] [Indexed: 01/03/2023]
Abstract
A simple and novel photoelectrochemical (PEC) aptasensor for selective detection of bisphenol A (BPA) was developed using surface plasmon resonance of Au nanoparticles activated ZnO nanopencils. With the irradiation of simulated light, the increased photocurrent of nano-Au/ZnO than that of pure ZnO nanopencil is induced by the hot electrons from excited Au nanoparticles. The perfect selectivity is attributed to the specific binding of BPA to its aptamer. With the addition of BPA, the conformation of aptamer changed to a G-quadruplex structure, which resulted in the blockages of photogenerated electron-transfer channels. Based on the above mechanisms and the optimized conditions, the assembled PEC aptasensor was linear with the concentration of BPA in the range of 1-1000nmolL(-1) with a detection limit of 0.5nmolL(-1). The presence of the same concentration and similar structure of other organics did not interfere in the detection of BPA and the recovery was between 96.2% and 108.4%. It has been successfully applied to the detection of BPA in drinking water and liquid milk samples. This PEC aptasensor has good performances in novelty, selectivity, sensitivity and low cost, and it provides an alternative approach to the detection of BPA.
Collapse
Affiliation(s)
- Yunfei Qiao
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, 211 East Jianjun Road, Yancheng 224051, PR China; School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Jing Li
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, 211 East Jianjun Road, Yancheng 224051, PR China
| | - Hongbo Li
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, 211 East Jianjun Road, Yancheng 224051, PR China.
| | - Hailin Fang
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, 211 East Jianjun Road, Yancheng 224051, PR China
| | - Dahe Fan
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, 211 East Jianjun Road, Yancheng 224051, PR China
| | - Wei Wang
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, 211 East Jianjun Road, Yancheng 224051, PR China.
| |
Collapse
|
166
|
Guler E, Bozokalfa G, Demir B, Gumus ZP, Guler B, Aldemir E, Timur S, Coskunol H. An aptamer folding-based sensory platform decorated with nanoparticles for simple cocaine testing. Drug Test Anal 2016; 9:578-587. [PMID: 27336666 DOI: 10.1002/dta.1992] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 04/11/2016] [Accepted: 04/11/2016] [Indexed: 01/08/2023]
Abstract
The consumption of illicit drugs such as cannabis, cocaine, and amphetamines is still a major health and social problem, creating an abuse in adults especially. Novel techniques which estimate the drug of abuse are needed for the detection of newly revealed psychoactive drugs. Herein, we have constructed a combinatorial platform by using quantum dots (QDs) and gold nanoparticles (AuNPs) as well as a functional aptamer which selectively recognizes cocaine and its metabolite benzoylecgonine (BE). We have called it an aptamer folding-based sensory device (AFSD). For the fabrication of AFSD, QDs were initially immobilized onto the poly-L-lysine coated μ-well surfaces. Then, the AuNP-aptamer conjugates were bound to the QDs. The addition of cocaine or BE caused a change in the aptamer structure which induced the close interaction of AuNPs with the QDs. Hence, quenching of the fluorescence of QDs was observed depending on the analyte amount. The linearity of cocaine and BE was 1.0-10 nM and 1.0-25 μM, respectively. Moreover, the limits of detection for cocaine and BE were calculated as 0.138 nM and 1.66 μM. The selectivity was tested by using different interfering substances (methamphetamine, bovine serum albumin, codeine, and 3-acetamidophenol). To investigate the use of AFSD in artificial urine matrix, cocaine/BE spiked samples were applied. Also, confirmatory analyses by using high performance liquid chromatography were performed. It is shown that AFSD has a good potential for testing the cocaine abuse and can be easily adapted for detection of various addictive drugs by changing the aptamer according to desired analytes. Copyright © 2016 John Wiley & Sons, Ltd.
Collapse
Affiliation(s)
- Emine Guler
- Ege University Faculty of Science, Biochemistry Department, 35100, Bornova, Izmir, Turkey.,Ege University, Institute of Drug Abuse Toxicology & Pharmaceutical Sciences, 35100, Bornova, Izmir, Turkey
| | - Guliz Bozokalfa
- Ege University Faculty of Science, Biochemistry Department, 35100, Bornova, Izmir, Turkey
| | - Bilal Demir
- Ege University Faculty of Science, Biochemistry Department, 35100, Bornova, Izmir, Turkey
| | - Zinar Pinar Gumus
- Ege University, Institute of Drug Abuse Toxicology & Pharmaceutical Sciences, 35100, Bornova, Izmir, Turkey
| | - Bahar Guler
- Ege University Faculty of Science, Biochemistry Department, 35100, Bornova, Izmir, Turkey
| | - Ebru Aldemir
- Ege University, Institute of Drug Abuse Toxicology & Pharmaceutical Sciences, 35100, Bornova, Izmir, Turkey
| | - Suna Timur
- Ege University Faculty of Science, Biochemistry Department, 35100, Bornova, Izmir, Turkey.,Ege University, Institute of Drug Abuse Toxicology & Pharmaceutical Sciences, 35100, Bornova, Izmir, Turkey
| | - Hakan Coskunol
- Ege University, Institute of Drug Abuse Toxicology & Pharmaceutical Sciences, 35100, Bornova, Izmir, Turkey.,Ege LS, Cigli, 35620, Izmir, Turkey
| |
Collapse
|
167
|
Li H, Huang Y, Yu Y, Wang Y, Li G. Recognition-induced covalent capturing and labeling as a general strategy for protein detection. Biosens Bioelectron 2016; 80:560-565. [DOI: 10.1016/j.bios.2016.02.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 01/23/2016] [Accepted: 02/05/2016] [Indexed: 12/11/2022]
|
168
|
Xu ZJ, Zhang LR. Theoretical and Experimental: The Synthetic and Anion-Binding Properties of Tripodal Salicylaldehyde Derivatives. SENSORS 2016; 16:s16050733. [PMID: 27213390 PMCID: PMC4883424 DOI: 10.3390/s16050733] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 05/09/2016] [Accepted: 05/12/2016] [Indexed: 12/20/2022]
Abstract
A series of colorimetric anion probes 1–6 containing OH and NO2 groups were synthesized, and their recognition properties toward various anions were investigated by visual observation, ultraviolet–visible spectroscopy, fluorescence, 1H nuclear magnetic resonance titration spectra and theoretical investigation. Nanomaterials of three compounds 2–4 were prepared successfully. Four compounds 3–6 that contain electron-withdrawing substituents showed a high binding ability for AcO−. The host–guest complex formed through a 1:1 binding ratio, and color changes were detectable during the recognition process. Theoretical investigation analysis revealed that an intramolecular hydrogen bond existed in the structures of compounds and the roles of molecular frontier orbitals in molecular interplay. These studies suggested that this series of compounds could be used as colorimetric probes to detect of AcO−.
Collapse
Affiliation(s)
- Zhong-Jie Xu
- School of Basic Medicine, Zhengzhou University, Zhengzhou 450052, China.
- Life Science and Technology College, Xinxiang Medical University, Xinxiang 453003, China.
| | - Li-Rong Zhang
- School of Basic Medicine, Zhengzhou University, Zhengzhou 450052, China.
| |
Collapse
|
169
|
Tan B, Zhao H, Du L, Gan X, Quan X. A versatile fluorescent biosensor based on target-responsive graphene oxide hydrogel for antibiotic detection. Biosens Bioelectron 2016; 83:267-73. [PMID: 27132000 DOI: 10.1016/j.bios.2016.04.065] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 04/12/2016] [Accepted: 04/20/2016] [Indexed: 12/28/2022]
Abstract
A fluorescent sensing platform based on graphene oxide (GO) hydrogel was developed through a fast and facile gelation, immersion and fluorescence determination process, in which the adenosine and aptamer worked as the co-crosslinkers to connect the GO sheets and then form the three-dimensional (3D) macrostructures. The as-prepared hydrogel showed high mechanical strength and thermal stability. The optimal hydrogel had a linear response for oxytetracycline (OTC) of 25-1000μg/L and a limit of quantitation (LOQ) of 25μg/L. Moreover, together with the high affinity of the aptamer for its target, this assay exhibited excellent sensitivity and selectivity. According to its design principle, the as-designed hydrogel was also tested to possess the generic detection function for other molecules by simply replacing its recognition element, which is expected to lay a foundation to realize the assembly of functionalized hierarchical graphene-based materials for practical applications in analytical field.
Collapse
Affiliation(s)
- Bing Tan
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China
| | - Huimin Zhao
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China.
| | - Lei Du
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China
| | - Xiaorong Gan
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China
| | - Xie Quan
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China
| |
Collapse
|
170
|
Ma C, Liu H, Tian T, Song X, Yu J, Yan M. A simple and rapid detection assay for peptides based on the specific recognition of aptamer and signal amplification of hybridization chain reaction. Biosens Bioelectron 2016; 83:15-8. [PMID: 27093485 DOI: 10.1016/j.bios.2016.04.030] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 04/05/2016] [Accepted: 04/11/2016] [Indexed: 12/12/2022]
Abstract
A simple and rapid assay for the detection of peptides is designed based on the specific recognition of aptamer, the quenching effect of graphene oxide (GO) and the efficient signal amplification of hybrid chain reaction (HCR). In this assay, the hairpin structure of aptamer is opened after binding with targets, and the initiation sequence could be exposed to hairpin probe 1 (H1) to open its hairpin structure. Then the opened H1 will open the hairpin structure of hairpin probe 2 (H2), and in turn, the opened initiation sequence of H2 continues to open H1. As a result, the specific recognition of target and fluorescent signals are accumulated through the process in short 1h. Attentively, the aptamer can not only identify target peptides, but also initiate the HCR between H1 and H2. More importantly, the HCR is initiated only after the target recognition of aptamer. After HCR, the excess hairpin probes will be anchored on the GO surface, and the background is greatly reduced due to the quenching effect of GO. By using Mucin-1(MUC1) as a model peptide, the assay has a wide linear range as two orders of magnitude and the detection range is from 0.01 to 5nM with low detection limit of 3.33pM. Therefore, the simple and rapid detection of the target can be realized, and the novel assay has great potential in detecting various peptides and even cancer cells.
Collapse
Affiliation(s)
- Chao Ma
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Haiyun Liu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Tian Tian
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Xianrang Song
- Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Jinan 250117, China
| | - Jinghua Yu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Mei Yan
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
| |
Collapse
|
171
|
Robati RY, Arab A, Ramezani M, Langroodi FA, Abnous K, Taghdisi SM. Aptasensors for quantitative detection of kanamycin. Biosens Bioelectron 2016; 82:162-72. [PMID: 27085947 DOI: 10.1016/j.bios.2016.04.011] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 03/26/2016] [Accepted: 04/04/2016] [Indexed: 02/07/2023]
Abstract
Up till now, various techniques have been developed to detect kanamycin in biological samples. However, due to some problems involved in these methods including time-consuming, expensive equipment and high consumption of reagents, new strategies for detection and quantitative determination of kanamycin are needed. Aptamer-based biosensors with unique recognition capability have attracted more attention of scientists because of its rapid response, high sensitivity and simple fabrication. Hence, we summarized optical and electrochemical kanamycin aptasensors and focuses on recent advances and modern techniques in aptasensor-based kanamycin detection techniques in order to provide readers with an inclusive understanding of its improvement and progress.
Collapse
Affiliation(s)
- Rezvan Yazdian Robati
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Atefeh Arab
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Ramezani
- Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fatemeh Alebooye Langroodi
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khalil Abnous
- Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Seyed Mohammad Taghdisi
- Targeted Drug Delivery Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| |
Collapse
|
172
|
Özalp VC, Çam D, Hernandez FJ, Hernandez LI, Schäfer T, Öktem HA. Small molecule detection by lateral flow strips via aptamer-gated silica nanoprobes. Analyst 2016; 141:2595-9. [PMID: 27041474 DOI: 10.1039/c6an00273k] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A fast, sensitive and ratiometric biosensor strategy for small molecule detection was developed through nanopore actuation. The new platform engineers together, a highly selective molecular recognition element, aptamers, and a novel signal amplification mechanism, gated nanopores. As a proof of concept, aptamer gated silica nanoparticles have been successfully used as a sensing platform for the detection of ATP concentrations at a wide linear range from 100 μM up to 2 mM.
Collapse
Affiliation(s)
- V Cengiz Özalp
- School of Medicine, Istanbul Kemerburgaz University, Istanbul, 34217, Turkey.
| | | | | | | | | | | |
Collapse
|
173
|
Shahdost-Fard F, Roushani M. Conformation switching of an aptamer based on cocaine enhancement on a surface of modified GCE. Talanta 2016; 154:7-14. [PMID: 27154642 DOI: 10.1016/j.talanta.2016.03.055] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 03/16/2016] [Accepted: 03/16/2016] [Indexed: 01/10/2023]
Abstract
An ultrasensitive aptasensor was fabricated as an electrochemical nanotool based on the conformation switching of an aptamer (Apt). The Apt which was covalently attached on the surface of a glassy carbon electrode (GCE) covered with cadmium telluride (CdTe) quantum dots (QDs) works as a unique modifier for assaying cocaine. The Apt was combined with cocaine to form a three-way junction complex; this complex increased the steric hindrance of the modified GCE surface and resulted in a variation of the corresponding current of a redox probe. In the present study, DPV technique for cocaine detection was applied and resulted in an unprecedented detection limit (LOD) of 5.0±0.1pmolL(-1), which is more sensitive than previously reported methods. One of the greatest advantages of this aptasensor is the elimination of enzymes or antibodies. It is also relatively a highly sensitive, simple, reproducible, and controllable nanotool. Likewise, it can be easily miniaturized, which is a necessary condition for the high-throughput system and on-site applications. The offered nanotool has a great promise for the routine analysis of the ultra-trace amounts of cocaine, which is important for law enforcement and clinical medicine. It is notable to say that further attempts are under way in our laboratory for the construction of other aptasensors with higher performance for specific targets such as the detection of methadone (MTD) and ibuprofen (IBP).
Collapse
|
174
|
Ogawa A, Tabuchi J. Biofunction-assisted aptasensors based on ligand-dependent 3' processing of a suppressor tRNA in a wheat germ extract. Org Biomol Chem 2016; 13:6681-5. [PMID: 25962756 DOI: 10.1039/c5ob00794a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have developed a novel type of biofunction-assisted aptasensor that harnesses ligand-dependent 3' processing of a premature amber suppressor tRNA and the subsequent amber suppression of a reporter gene in a wheat germ extract.
Collapse
Affiliation(s)
- Atsushi Ogawa
- Proteo-Science Center, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan.
| | | |
Collapse
|
175
|
Corrie SR, Coffey JW, Islam J, Markey KA, Kendall MAF. Blood, sweat, and tears: developing clinically relevant protein biosensors for integrated body fluid analysis. Analyst 2016; 140:4350-64. [PMID: 25909342 DOI: 10.1039/c5an00464k] [Citation(s) in RCA: 123] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Biosensors are being developed to provide rapid, quantitative, diagnostic information to clinicians in order to help guide patient treatment, without the need for centralised laboratory assays. The success of glucose monitoring is a key example of where technology innovation has met a clinical need at multiple levels – from the pathology laboratory all the way to the patient's home. However, few other biosensor devices are currently in routine use. Here we review the challenges and opportunities regarding the integration of biosensor techniques into body fluid sampling approaches, with emphasis on the point-of-care setting.
Collapse
Affiliation(s)
- S R Corrie
- The University of Queensland, Australian Institute for Bioengineering and Nanotechnology, Delivery of Drugs and Genes Group (D2G2), St Lucia, Queensland 4072, Australia.
| | | | | | | | | |
Collapse
|
176
|
Wang S, Bi S, Wang Z, Xia J, Zhang F, Yang M, Gui R, Li Y, Xia Y. A plasmonic aptasensor for ultrasensitive detection of thrombin via arrested rolling circle amplification. Chem Commun (Camb) 2016; 51:7927-30. [PMID: 25864665 DOI: 10.1039/c5cc02069g] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A sensitive signal generation mechanism for gold nanoparticle growth by reducing gold ions with hydrogen peroxide is applied in a plasmonic aptasensor, achieving naked-eye detection of thrombin at the single-molecule level based on the specific interaction of aptamer-thrombin via an arrested rolling circle amplification to yield horseradish peroxidase (HRP)-mimicking DNAzymes as biocatalysts.
Collapse
Affiliation(s)
- Sai Wang
- College of Chemical Science and Engineering, Laboratory of Fiber Materials and Modern Textiles, The Growing Base for State Key Laboratory, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Qingdao University, Qingdao 266071, P. R. China.
| | | | | | | | | | | | | | | | | |
Collapse
|
177
|
Nucleic acid tool enzymes-aided signal amplification strategy for biochemical analysis: status and challenges. Anal Bioanal Chem 2015; 408:2793-811. [DOI: 10.1007/s00216-015-9240-y] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 11/13/2015] [Accepted: 12/01/2015] [Indexed: 11/27/2022]
|
178
|
Vancraenenbroeck R, Webb MR. A Fluorescent, Reagentless Biosensor for ATP, Based on Malonyl-Coenzyme A Synthetase. ACS Chem Biol 2015; 10:2650-7. [PMID: 26355992 PMCID: PMC4655421 DOI: 10.1021/acschembio.5b00346] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
![]()
A fluorescent reagentless biosensor
for ATP has been developed,
based on malonyl-coenzyme A synthetase from Rhodopseudomonas
palustris as the protein scaffold and recognition element.
Two 5-iodoacetamidotetramethylrhodamines were covalently bound to
this protein to provide the readout. This adduct couples ATP binding
to a 3.7-fold increase in fluorescence intensity with excitation at
553 nm and emission at 575 nm. It measures ATP concentrations with
micromolar sensitivity and is highly selective for ATP relative to
ADP. Its ability to monitor enzymatic ATP production or depletion
was demonstrated in steady-state kinetic assays in which ATP is a
product or substrate, respectively.
Collapse
Affiliation(s)
- Renée Vancraenenbroeck
- The Francis Crick Institute, Mill Hill Laboratory, The Ridgeway, Mill Hill, London NW7 1AA, United Kingdom
| | - Martin R. Webb
- The Francis Crick Institute, Mill Hill Laboratory, The Ridgeway, Mill Hill, London NW7 1AA, United Kingdom
| |
Collapse
|
179
|
Gan J, Wei X, Li Y, Wu J, Qian K, Liu B. Designer SiO2@Au nanoshells towards sensitive and selective detection of small molecules in laser desorption ionization mass spectrometry. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2015; 11:1715-23. [DOI: 10.1016/j.nano.2015.06.010] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 05/10/2015] [Accepted: 06/15/2015] [Indexed: 12/25/2022]
|
180
|
Hayat A, Mishra RK, Catanante G, Marty JL. Development of an aptasensor based on a fluorescent particles-modified aptamer for ochratoxin A detection. Anal Bioanal Chem 2015; 407:7815-22. [PMID: 26277188 DOI: 10.1007/s00216-015-8952-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 07/29/2015] [Accepted: 07/31/2015] [Indexed: 11/28/2022]
Abstract
The presented work reports a generic fluorescent aptasensing design employing carboxy-modified fluorescent particles as a signal-generating probe and magnetic particles as a solid separation support. Carboxy-modified fluorescent particles were used to modify the aptamer and act as a signal-generating probe. Magnetic beads were used as an immobilization surface to perform the function of a solid separation support. As a proof of concept, the assay was used to detect ochratoxin A (OTA). Fluorescent detection based on the displacement and competition format was performed, and the obtained results were compared. The competition-based assays were characterized with improved analytical characteristics as compared to those based on the displacement principle. The competitive fluorescent assays showed a high sensitivity where the detection limit and IC50 were 0.005 and 7.2 nM respectively. The aptasensing platform was finally demonstrated for the detection of OTA in a beer sample. However, this is a generic approach that can be very easily extended to other matrixes to determine OTA. Additionally, the proposed concept of fluorescent particles as a signal-generating probe in combination with magnetic particles can also be integrated to other fluorescent-based affinity assays.
Collapse
Affiliation(s)
- Akhtar Hayat
- BAE: Biocapteurs-Analyses-Environnement, Universite de Perpignan Via Domitia, 52 Avenue Paul Alduy, Perpignan Cedex, 66860, France. .,Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS Institute of Information Technology, Lahore, 54000, Pakistan.
| | - Rupesh K Mishra
- BAE: Biocapteurs-Analyses-Environnement, Universite de Perpignan Via Domitia, 52 Avenue Paul Alduy, Perpignan Cedex, 66860, France
| | - Gaelle Catanante
- BAE: Biocapteurs-Analyses-Environnement, Universite de Perpignan Via Domitia, 52 Avenue Paul Alduy, Perpignan Cedex, 66860, France
| | - Jean Louis Marty
- BAE: Biocapteurs-Analyses-Environnement, Universite de Perpignan Via Domitia, 52 Avenue Paul Alduy, Perpignan Cedex, 66860, France
| |
Collapse
|
181
|
The Detection of Helicobacter hepaticus Using Whispering-Gallery Mode Microcavity Optical Sensors. BIOSENSORS-BASEL 2015; 5:562-76. [PMID: 26262647 PMCID: PMC4600172 DOI: 10.3390/bios5030562] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 08/05/2015] [Indexed: 11/17/2022]
Abstract
Current bacterial detection techniques are relatively slow, require bulky instrumentation, and usually require some form of specialized training. The gold standard for bacterial detection is culture testing, which can take several days to receive a viable result. Therefore, simpler detection techniques that are both fast and sensitive could greatly improve bacterial detection and identification. Here, we present a new method for the detection of the bacteria Helicobacter hepaticus using whispering-gallery mode (WGM) optical microcavity-based sensors. Due to minimal reflection losses and low material adsorption, WGM-based sensors have ultra-high quality factors, resulting in high-sensitivity sensor devices. In this study, we have shown that bacteria can be non-specifically detected using WGM optical microcavity-based sensors. The minimum detection for the device was 1 × 104 cells/mL, and the minimum time of detection was found to be 750 s. Given that a cell density as low as 1 × 103 cells/mL for Helicobacter hepaticus can cause infection, the limit of detection shown here would be useful for most levels where Helicobacter hepaticus is biologically relevant. This study suggests a new approach for H. hepaticus detection using label-free optical sensors that is faster than, and potentially as sensitive as, standard techniques.
Collapse
|
182
|
Osypova A, Thakar D, Dejeu J, Bonnet H, Van der Heyden A, Dubacheva GV, Richter RP, Defrancq E, Spinelli N, Coche-Guérente L, Labbé P. Sensor Based on Aptamer Folding to Detect Low-Molecular Weight Analytes. Anal Chem 2015; 87:7566-74. [PMID: 26122480 DOI: 10.1021/acs.analchem.5b01736] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Aptamers have emerged as promising biorecognition elements in the development of biosensors. The present work focuses on the application of quartz crystal microbalance with dissipation monitoring (QCM-D) for the enantioselective detection of a low molecular weight target molecule (less than 200 Da) by aptamer-based sensors. While QCM-D is a powerful technique for label-free, real-time characterization and quantification of molecular interactions at interfaces, the detection of small molecules interacting with immobilized receptors still remains a challenge. In the present study, we take advantage of the aptamer conformational changes upon the target binding that induces displacement of water acoustically coupled to the sensing layer. As a consequence, this phenomenon leads to a significant enhancement of the detection signal. The methodology is exemplified with the enantioselective recognition of a low molecular weight model compound, L-tyrosinamide (L-Tym). QCM-D monitoring of L-Tym interaction with the aptamer monolayer leads to an appreciable signal that can be further exploited for analytical purposes or thermodynamics studies. Furthermore, in situ combination of QCM-D with spectroscopic ellipsometry unambiguously demonstrates that the conformational change induces a nanometric decrease of the aptamer monolayer thickness. Since QCM-D is sensitive to the whole mass of the sensing layer including water that is acoustically coupled, a decrease in thickness of the highly hydrated aptamer layer induces a sizable release of water that can be easily detected by QCM-D.
Collapse
Affiliation(s)
- Alina Osypova
- †Université Grenoble Alpes, DCM UMR 5250, F-38000 Grenoble, France.,‡CNRS, DCM UMR 5250, F-38000 Grenoble, France
| | - Dhruv Thakar
- †Université Grenoble Alpes, DCM UMR 5250, F-38000 Grenoble, France.,‡CNRS, DCM UMR 5250, F-38000 Grenoble, France
| | - Jérôme Dejeu
- †Université Grenoble Alpes, DCM UMR 5250, F-38000 Grenoble, France.,‡CNRS, DCM UMR 5250, F-38000 Grenoble, France
| | - Hugues Bonnet
- †Université Grenoble Alpes, DCM UMR 5250, F-38000 Grenoble, France.,‡CNRS, DCM UMR 5250, F-38000 Grenoble, France
| | - Angéline Van der Heyden
- †Université Grenoble Alpes, DCM UMR 5250, F-38000 Grenoble, France.,‡CNRS, DCM UMR 5250, F-38000 Grenoble, France
| | | | - Ralf P Richter
- †Université Grenoble Alpes, DCM UMR 5250, F-38000 Grenoble, France.,‡CNRS, DCM UMR 5250, F-38000 Grenoble, France.,§CIC biomaGUNE, 20009 Donostia-San Sebastian, Spain.,∥Max-Planck-Institute for Intelligent Systems, 70569 Stuttgart, Germany
| | - Eric Defrancq
- †Université Grenoble Alpes, DCM UMR 5250, F-38000 Grenoble, France.,‡CNRS, DCM UMR 5250, F-38000 Grenoble, France
| | - Nicolas Spinelli
- †Université Grenoble Alpes, DCM UMR 5250, F-38000 Grenoble, France.,‡CNRS, DCM UMR 5250, F-38000 Grenoble, France
| | - Liliane Coche-Guérente
- †Université Grenoble Alpes, DCM UMR 5250, F-38000 Grenoble, France.,‡CNRS, DCM UMR 5250, F-38000 Grenoble, France
| | - Pierre Labbé
- †Université Grenoble Alpes, DCM UMR 5250, F-38000 Grenoble, France.,‡CNRS, DCM UMR 5250, F-38000 Grenoble, France
| |
Collapse
|
183
|
Sharma TK, Ramanathan R, Weerathunge P, Mohammadtaheri M, Daima HK, Shukla R, Bansal V. Aptamer-mediated 'turn-off/turn-on' nanozyme activity of gold nanoparticles for kanamycin detection. Chem Commun (Camb) 2015; 50:15856-9. [PMID: 25331713 DOI: 10.1039/c4cc07275h] [Citation(s) in RCA: 138] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A new ultrafast and highly sensitive 'turn-off/turn-on' biosensing approach that combines the intrinsic peroxidase-like activity of gold nanoparticles (GNPs) with the high affinity and specificity of a ssDNA aptamer is presented for the efficient detection of a model small molecule kanamycin.
Collapse
Affiliation(s)
- Tarun Kumar Sharma
- Ian Potter NanoBioSensing Facility, NanoBiotechnology Research Laboratory, School of Applied Science, RMIT University, GPO Box 2476V, Melbourne VIC 3001, Australia.
| | | | | | | | | | | | | |
Collapse
|
184
|
Xu J, Li Y, Bie J, Jiang W, Guo J, Luo Y, Shen F, Sun C. Colorimetric method for determination of bisphenol A based on aptamer-mediated aggregation of positively charged gold nanoparticles. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1547-z] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
185
|
Petty JT, Sergev OO, Kantor AG, Rankine IJ, Ganguly M, David FD, Wheeler SK, Wheeler JF. Ten-atom silver cluster signaling and tempering DNA hybridization. Anal Chem 2015; 87:5302-9. [PMID: 25923963 DOI: 10.1021/acs.analchem.5b01265] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Silver clusters with ∼10 atoms are molecules, and specific species develop within DNA strands. These molecular metals have sparsely organized electronic states with distinctive visible and near-infrared spectra that vary with cluster size, oxidation, and shape. These small molecules also act as DNA adducts and coordinate with their DNA hosts. We investigated these characteristics using a specific cluster-DNA conjugate with the goal of developing a sensitive and selective biosensor. The silver cluster has a single violet absorption band (λ(max) = 400 nm), and its single-stranded DNA host has two domains that stabilize this cluster and hybridize with target oligonucleotides. These target analytes transform the weakly emissive violet cluster to a new chromophore with blue-green absorption (λ(max) = 490 nm) and strong green emission (λ(max) = 550 nm). Our studies consider the synthesis, cluster size, and DNA structure of the precursor violet cluster-DNA complex. This species preferentially forms with relatively low amounts of Ag(+), high concentrations of the oxidizing agent O2, and DNA strands with ≳20 nucleotides. The resulting aqueous and gaseous forms of this chromophore have 10 silvers that coalesce into a single cluster. This molecule is not only a chromophore but also an adduct that coordinates multiple nucleobases. Large-scale DNA conformational changes are manifested in a 20% smaller hydrodynamic radius and disrupted nucleobase stacking. Multidentate coordination also stabilizes the single-stranded DNA and thereby inhibits hybridization with target complements. These observations suggest that the silver cluster-DNA conjugate acts like a molecular beacon but is distinguished because the cluster chromophore not only sensitively signals target analytes but also stringently discriminates against analogous competing analytes.
Collapse
Affiliation(s)
- Jeffrey T Petty
- Department of Chemistry, Furman University, Greenville, South Carolina 29613, United States
| | - Orlin O Sergev
- Department of Chemistry, Furman University, Greenville, South Carolina 29613, United States
| | - Andrew G Kantor
- Department of Chemistry, Furman University, Greenville, South Carolina 29613, United States
| | - Ian J Rankine
- Department of Chemistry, Furman University, Greenville, South Carolina 29613, United States
| | - Mainak Ganguly
- Department of Chemistry, Furman University, Greenville, South Carolina 29613, United States
| | - Frederic D David
- Department of Chemistry, Furman University, Greenville, South Carolina 29613, United States
| | - Sandra K Wheeler
- Department of Chemistry, Furman University, Greenville, South Carolina 29613, United States
| | - John F Wheeler
- Department of Chemistry, Furman University, Greenville, South Carolina 29613, United States
| |
Collapse
|
186
|
Zhao Q, Lv Q, Wang H. Aptamer fluorescence anisotropy sensors for adenosine triphosphate by comprehensive screening tetramethylrhodamine labeled nucleotides. Biosens Bioelectron 2015; 70:188-93. [PMID: 25814408 DOI: 10.1016/j.bios.2015.03.031] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 03/13/2015] [Accepted: 03/15/2015] [Indexed: 02/02/2023]
Abstract
We previously reported a fluorescence anisotropy (FA) approach for small molecules using tetramethylrhodamine (TMR) labeled aptamer. It relies on target-binding induced change of intramolecular interaction between TMR and guanine (G) base. TMR-labeling sites are crucial for this approach. Only terminal ends and thymine (T) bases could be tested for TMR labeling in our previous work, possibly causing limitation in analysis of different targets with this FA strategy. Here, taking the analysis of adenosine triphosphate (ATP) as an example, we demonstrated a success of conjugating TMR on other bases of aptamer adenine (A) or cytosine (C) bases and an achievement of full mapping various labeling sites of aptamers. We successfully constructed aptamer fluorescence anisotropy (FA) sensors for adenosine triphosphate (ATP). We conjugated single TMR on adenine (A), cytosine (C), or thymine (T) bases or terminals of a 25-mer aptamer against ATP and tested FA responses of 14 TMR-labeled aptamer to ATP. The aptamers having TMR labeled on the 16th base C or 23rd base A were screened out and exhibited significant FA-decreasing or FA-increasing responses upon ATP, respectively. These two favorable TMR-labeled aptamers enabled direct FA sensing ATP with a detection limit of 1 µM and the analysis of ATP in diluted serum. The comprehensive screening various TMR labeling sites of aptamers facilitates the successful construction of FA sensors using TMR-labeled aptamers. It will expand application of TMR-G interaction based aptamer FA strategy to a variety of targets.
Collapse
Affiliation(s)
- Qiang Zhao
- Institute of Environmental Science, College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China.
| | - Qin Lv
- Institute of Environmental Science, College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China
| | - Hailin Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China
| |
Collapse
|
187
|
Sun J, Li L, Zhang X, Liu D, Lv S, Zhu D, Wu T, You T. Simultaneous determination of ascorbic acid, dopamine and uric acid at a nitrogen-doped carbon nanofiber modified electrode. RSC Adv 2015. [DOI: 10.1039/c4ra13857k] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This paper demonstrates high electrocatalytic activity of NCNF/GCE towards small biomolecules. The proposed electrochemical sensor exhibits good selectivity, high sensitivity and excellent stability towards AA, DA and UA simultaneous detection.
Collapse
Affiliation(s)
- Jinying Sun
- School of Pharmacy
- Guangdong Medical College
- Dongguan 523808
- China
| | - Libo Li
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Xueping Zhang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Dong Liu
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Simin Lv
- School of Pharmacy
- Guangdong Medical College
- Dongguan 523808
- China
| | - Derong Zhu
- School of Pharmacy
- Guangdong Medical College
- Dongguan 523808
- China
| | - Tie Wu
- School of Pharmacy
- Guangdong Medical College
- Dongguan 523808
- China
| | - Tianyan You
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| |
Collapse
|
188
|
Alfaro K, Bustos P, O Sullivan C, Conejeros P. Facile and Cost-Effective Detection of Saxitoxin Exploiting Aptamer Structural Switching. Food Technol Biotechnol 2015; 53:337-341. [PMID: 27904366 DOI: 10.17113/ftb.53.03.15.3911] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
A simple method to detect saxitoxin (STX), one of the main components of the paralytic shellfish poison from red tide, has been developed. By using a next generation dye for double-stranded DNA we were able to differentiate fluorescence from STX-binding aptamers when exposed to different concentrations of STX, suggesting a change in aptamer folding upon target binding. The developed method is extremely rapid, only requiring small sample volumes, with quantitative results in the concentration range of 15 ng/mL to 3 µg/mL of STX, with a detection limit of 7.5 ng/mL.
Collapse
Affiliation(s)
- Karol Alfaro
- Centro de Investigación y Gestión de Recursos Naturales, Facultad de Ciencias,
Universidad de Valparaíso, Gran Bretańa 1111, Valparaíso, Chile
| | - Paulina Bustos
- Centro de Investigación y Gestión de Recursos Naturales, Facultad de Ciencias,
Universidad de Valparaíso, Gran Bretańa 1111, Valparaíso, Chile
| | - Ciara O Sullivan
- Nanobiotechnology and Bioanalysis Group, Department of Chemical Engineering,
Universitat Rovira i Virgili, 43007 ES-Tarragona, Spain
| | - Pablo Conejeros
- Centro de Investigación y Gestión de Recursos Naturales, Facultad de Ciencias,
Universidad de Valparaíso, Gran Bretańa 1111, Valparaíso, Chile
| |
Collapse
|
189
|
Mokhtarzadeh A, Ezzati Nazhad Dolatabadi J, Abnous K, de la Guardia M, Ramezani M. Nanomaterial-based cocaine aptasensors. Biosens Bioelectron 2014; 68:95-106. [PMID: 25562736 DOI: 10.1016/j.bios.2014.12.052] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 12/04/2014] [Accepted: 12/22/2014] [Indexed: 12/17/2022]
Abstract
Up to now, many different methods have been developed for detection of cocaine, but most of these methods are usually time-consuming, tedious and require special or expensive equipment. Therefore, the development of simple, sensitive and rapid detection methods is necessary. In the last decade, aptamers have been used as a new biosensor platform for detection of cocaine in different samples. Aptamers are artificial single-stranded DNA or RNA oligonucleotides capable of binding to specific molecular targets with high affinity and if integrated to nanomaterials, it may lead in precise methods for cocaine detection in the common laboratories. In this review, recent advances and applications of aptamer-based biosensors and nanobiosensors, have been updated, paying attention to the use of fluorescence, colorimetric and electrochemical techniques for the detection and quantitative determination of cocaine.
Collapse
Affiliation(s)
- Ahad Mokhtarzadeh
- Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, P.O. Box 91775-1365, Mashhad, Iran
| | | | - Khalil Abnous
- Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, P.O. Box 91775-1365, Mashhad, Iran
| | - Miguel de la Guardia
- Department of Analytical Chemistry, University of Valencia, Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
| | - Mohammad Ramezani
- Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, P.O. Box 91775-1365, Mashhad, Iran.
| |
Collapse
|
190
|
Weerathunge P, Ramanathan R, Shukla R, Sharma TK, Bansal V. Aptamer-controlled reversible inhibition of gold nanozyme activity for pesticide sensing. Anal Chem 2014; 86:11937-41. [PMID: 25340286 DOI: 10.1021/ac5028726] [Citation(s) in RCA: 173] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
This study addresses the need for rapid pesticide (acetamiprid) detection by reporting a new colorimetric biosensing assay. Our approach combines the inherent peroxidase-like nanozyme activity of gold nanoparticles (GNPs) with high affinity and specificity of an acetamiprid-specific S-18 aptamer to detect this neurotoxic pesticide in a highly rapid, specific, and sensitive manner. It is shown that the nanozyme activity of GNPs can be inhibited by its surface passivation with target-specific aptamer molecules. Similar to an enzymatic competitive inhibition process, in the presence of a cognate target, these aptamer molecules leave the GNP surface in a target concentration-dependent manner, reactivating GNP nanozyme activity. This reversible inhibition of the GNP nanozyme activity can either be directly visualized in the form of color change of the peroxidase reaction product or can be quantified using UV-visible absorbance spectroscopy. This approach allowed detection of 0.1 ppm acetamiprid within an assay time of 10 min. This reversible nanozyme activation/inhibition strategy may in principle be universally applicable for the detection of a range of environmental or biomedical molecules of interest.
Collapse
Affiliation(s)
- Pabudi Weerathunge
- Ian Potter NanoBioSensing Facility, NanoBiotechnology Research Laboratory, School of Applied Science, RMIT University , GPO Box 2476 V, Melbourne Victoria 3001, Australia
| | | | | | | | | |
Collapse
|
191
|
Xiao L, Sun S, Pei Z, Pei Y, Pang Y, Xu Y. A Ga(3+)self-assembled fluorescent probe for ATP imaging in vivo. Biosens Bioelectron 2014; 65:166-70. [PMID: 25461153 DOI: 10.1016/j.bios.2014.10.038] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Revised: 10/14/2014] [Accepted: 10/15/2014] [Indexed: 12/22/2022]
Abstract
Adenosine 5'-triphosphate (ATP) is a functional molecule associated with many important biological processes. Fluorescent detection methods for ATP with facile performance and high selectivity are in demand. One of the possible multi-membered arrays assembled between DHBO and Ga(3+) ions was conducted in aqueous solution, which can selectively recognize ATP with fluorescence enhancement from ADP, AMP and other structurally similar nucleoside triphosphates in vitro and in vivo. ATP facilitates the interaction between DHBO and Ga(3+) ions, resulting in the fluorescence increase. The detection limit for ATP was calculated to be 5.49×10(-7)M, which is much lower than that of intracellular concentrations (1-10mM). In addition, DHBO-Ga(3+) can be applied to detect ATP-relevant enzyme activity.
Collapse
Affiliation(s)
- Liangliang Xiao
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Shiguo Sun
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Zhichao Pei
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Yuxin Pei
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Yi Pang
- Department of Chemistry & Maurice Morton Institute of Polymer Science, The University of Akron, Akron, OH 44325, USA
| | - Yongqian Xu
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, PR China.
| |
Collapse
|