201
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Santos A, Piccoli JP, Santos-Filho NA, Cilli EM, Bueno PR. Redox-tagged peptide for capacitive diagnostic assays. Biosens Bioelectron 2015; 68:281-287. [DOI: 10.1016/j.bios.2014.12.059] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2014] [Revised: 12/29/2014] [Accepted: 12/30/2014] [Indexed: 11/16/2022]
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202
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Ma Z, Liu N. Design of immunoprobes for electrochemical multiplexed tumor marker detection. Expert Rev Mol Diagn 2015; 15:1075-83. [PMID: 26027743 DOI: 10.1586/14737159.2015.1052798] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Many approaches have been developed for simultaneous detection of multiple tumor markers. Among these approaches, the electrochemical immunoassay has the advantage of high sensitivity and specificity and could be easily expanded into multiplex detection platform. For the simultaneous multianalyte electrochemical immunosensor, performance is closely related with the characteristics of the immunoprobes and substrate. In order to construct a multilabeled immunoprobe platform, the most important issue is how to discriminate each signal for each analyte from the multiple antigen-antibody reactions. Currently, enzyme-based, noble metal nanomaterials, carbonmaterials and polymer-based nanomaterial immunoprobes have been used for dual- or three-analyte detections. However, there are still some challenges in developing sensitive method to detect three or more tumor markers owing to the lack of redox-active species that can produce three or more distinctive peaks. Additionally, for the immunosensing substrate, good conductivity, high specific surface area and good biocompatibility are further necessities.
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Affiliation(s)
- Zhanfang Ma
- Department of Chemistry, Capital Normal University, Beijing 100048, China
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203
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Sodzel D, Khranovskyy V, Beni V, Turner APF, Viter R, Eriksson MO, Holtz PO, Janot JM, Bechelany M, Balme S, Smyntyna V, Kolesneva E, Dubovskaya L, Volotovski I, Ubelis A, Yakimova R. Continuous sensing of hydrogen peroxide and glucose via quenching of the UV and visible luminescence of ZnO nanoparticles. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1493-9] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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204
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Rackus DG, Shamsi MH, Wheeler AR. Electrochemistry, biosensors and microfluidics: a convergence of fields. Chem Soc Rev 2015; 44:5320-40. [PMID: 25962356 DOI: 10.1039/c4cs00369a] [Citation(s) in RCA: 236] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Electrochemistry, biosensors and microfluidics are popular research topics that have attracted widespread attention from chemists, biologists, physicists, and engineers. Here, we introduce the basic concepts and recent histories of electrochemistry, biosensors, and microfluidics, and describe how they are combining to form new application-areas, including so-called "point-of-care" systems in which measurements traditionally performed in a laboratory are moved into the field. We propose that this review can serve both as a useful starting-point for researchers who are new to these topics, as well as being a compendium of the current state-of-the art for experts in these evolving areas.
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Affiliation(s)
- Darius G Rackus
- Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON M5S 3H6, Canada.
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205
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Bhakta SA, Evans E, Benavidez TE, Garcia CD. Protein adsorption onto nanomaterials for the development of biosensors and analytical devices: a review. Anal Chim Acta 2015; 872:7-25. [PMID: 25892065 PMCID: PMC4405630 DOI: 10.1016/j.aca.2014.10.031] [Citation(s) in RCA: 139] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 09/25/2014] [Accepted: 10/21/2014] [Indexed: 12/11/2022]
Abstract
An important consideration for the development of biosensors is the adsorption of the biorecognition element to the surface of a substrate. As the first step in the immobilization process, adsorption affects most immobilization routes and much attention is given into the research of this process to maximize the overall activity of the biosensor. The use of nanomaterials, specifically nanoparticles and nanostructured films, offers advantageous properties that can be fine-tuned to maximize interactions with specific proteins to maximize activity, minimize structural changes, and enhance the catalytic step. In the biosensor field, protein-nanomaterial interactions are an emerging trend that span across many disciplines. This review addresses recent publications about the proteins most frequently used, their most relevant characteristics, and the conditions required to adsorb them to nanomaterials. When relevant and available, subsequent analytical figures of merits are discussed for selected biosensors. The general trend amongst the research papers allows concluding that the use of nanomaterials has already provided significant improvements in the analytical performance of many biosensors and that this research field will continue to grow.
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Affiliation(s)
- Samir A Bhakta
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA
| | - Elizabeth Evans
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA
| | - Tomás E Benavidez
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA
| | - Carlos D Garcia
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA.
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206
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Zhang Y, Arugula MA, Wales M, Wild J, Simonian AL. A novel layer-by-layer assembled multi-enzyme/CNT biosensor for discriminative detection between organophosphorus and non-organophosphrus pesticides. Biosens Bioelectron 2015; 67:287-95. [DOI: 10.1016/j.bios.2014.08.036] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 08/01/2014] [Accepted: 08/16/2014] [Indexed: 10/24/2022]
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207
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Zhang Y, Arugula MA, Kirsch JS, Yang X, Olsen E, Simonian AL. Layer-by-layer assembled carbon nanotube-acetylcholinesterase/biopolymer renewable interfaces: SPR and electrochemical characterization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:1462-1468. [PMID: 25562675 DOI: 10.1021/la503474w] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Developing simple, reliable, and cost-effective methods of renewing an inhibited biocatalyst (e.g., enzymatic interfaces) on biosensors is needed to advance multiuse, reusable sensor applications. We report a method for the renewal of layer-by-layer (LbL) self-assembled inhibition-based enzymatic interfaces in multiwalled carbon nanotube (MWCNT) armored acetylcholinesterase (AChE) biosensors. The self-assembly process of MWCNT dispersed enzymes/biopolymers was investigated using surface plasmon resonance (SPR). The LbL fabrication consisted of alternating cushion layers of positively charged CNT-polyethylenimine (CNT-PEI) and negatively charged CNT-deoxyribonucleic acid (CNT-DNA) and a functional interface consisting of alternating layers of CNT-PEI and negatively charged CNT-acetylcholine esterase (CNT-AChE, pH 7.4). The observed SPR response signal increased while assembling the different layers, indicating the buildup of multiple layers on the Au surface. A partial desorption of the top enzymatic layer in the LbL structure was observed with a desorption strategy employing alkaline treatment. This indicates that the strong interaction of CNT-biopolymer conjugates with the Au surface was a result of both electrostatic interactions between biopolymers and the surface binding energy from CNTs: the closer the layers are to the Au surface, the stronger the interactions. In contrast, a similar LbL assembly of soluble enzyme/polyelectrolytes resulted in stronger desorption on the surface after the alkaline treatment; this led to the investigation of AChE layer removal, permanently inhibited after pesticide exposure on glassy carbon (GC) electrodes, while keeping the cushion layers intact. The desorption strategy permitted the SPR and electrochemical electrode surfaces to be regenerated multiple times by the subsequent self-assembly of fresh PEI/AChE layers. Flow-mode electrochemical amperometric analysis demonstrated good stability toward the determination of acetylcholine with 97.1 ± 2.7% renewability. Our simple, inexpensive approach shows the potential of renewable LbL self-assembled functional interfaces for multiple uses in a wide field of applications such as biosensing, various biotechnological processes, and the food and health industries.
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Affiliation(s)
- Yuanyuan Zhang
- Department of Materials Engineering, Auburn University , Auburn, Alabama 36832, United States
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208
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Jin C, Zhang X, Wu X, Zhang M, Jiang J, Lin C, Wang L. The recognition of n-alkyl phosphonic or carboxylic acid by mono-squaramide-functionalised pillar[5]arenes. Supramol Chem 2015. [DOI: 10.1080/10610278.2014.999769] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Can Jin
- Jiangsu Provincial Key Laboratory of Biomass Energy and Materials, National Engineering Laboratory for Biomass Chemical Utilization, Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing, Jiangsu210042, P.R. China
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Xiaoning Zhang
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Xuan Wu
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Man Zhang
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Juli Jiang
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Chen Lin
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Leyong Wang
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, P.R. China
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209
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Wu WH, Zhu KD. Hybrid spin-microcantilever sensor for environmental, chemical, and biological detection. NANOTECHNOLOGY 2015; 26:015501. [PMID: 25483887 DOI: 10.1088/0957-4484/26/1/015501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Nowadays hybrid spin-micro/nanomechanical systems are being actively explored for potential quantum sensing applications. In combination with the pump-probe technique or the spin resonance spectrum, we theoretically propose a realistic, feasible, and an exact way to measure the cantilever frequency in a hybrid spin-micromechanical cantilever system which has a strong coherent coupling of a single nitrogen vacancy center in the single-crystal diamond cantilever with the microcantilever. The probe absorption spectrum which exhibits new features such as mechanically induced three-photon resonance and ac Stark effect is obtained. Simultaneously, we further develop this hybrid spin-micromechanical system to be an ultrasensitive mass sensor, which can be operated at 300 K with a mass responsivity 0.137 Hz ag(-1), for accurate sensing of gaseous or aqueous environments, chemical vapors, and biomolecules. And the best performance on the minimum detectable mass can be [Formula: see text] in vacuum. Finally, we illustrate an in situ measurement to detect Angiopoietin-1, a marker of tumor angiogenesis, accurately with this hybrid microcantilever at room temperature.
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Affiliation(s)
- Wen-Hao Wu
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, People's Republic of China
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210
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Ahmadov TO, Joshi P, Zhang J, Nahan K, Caruso JA, Zhang P. Paramagnetic relaxation based biosensor for selective dopamine detection. Chem Commun (Camb) 2015; 51:11425-8. [DOI: 10.1039/c5cc02732b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
We report a new NMR relaxation time-based method for sensitive and selective dopamine detection using paramagnetic nanoparticles.
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Affiliation(s)
| | - Padmanabh Joshi
- Department of Chemistry
- University of Cincinnati
- Cincinnati
- USA
| | - Jinnan Zhang
- Department of Chemistry
- University of Cincinnati
- Cincinnati
- USA
| | - Keaton Nahan
- Department of Chemistry
- University of Cincinnati
- Cincinnati
- USA
| | | | - Peng Zhang
- Department of Chemistry
- University of Cincinnati
- Cincinnati
- USA
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211
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Mai HD, Sung GY, Yoo H. Fabrication of nickel oxide nanostructures with high surface area and application for urease-based biosensor for urea detection. RSC Adv 2015. [DOI: 10.1039/c5ra14103f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
NiO nanostructures with high surface area were used to fabricate urease-based NiO biosensors for urea detection.
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Affiliation(s)
- Hien Duy Mai
- Department of Chemistry
- Hallym University
- Chuncheon
- Republic of Korea
| | - Gun Yong Sung
- Department of Materials Science and Engineering
- Hallym University
- Chuncheon
- Republic of Korea
| | - Hyojong Yoo
- Department of Chemistry
- Hallym University
- Chuncheon
- Republic of Korea
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212
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Yang X, Gao Z. Enzyme-catalysed deposition of ultrathin silver shells on gold nanorods: a universal and highly efficient signal amplification strategy for translating immunoassay into a litmus-type test. Chem Commun (Camb) 2015; 51:6928-31. [DOI: 10.1039/c5cc01286d] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A universal and highly efficient signal amplification strategy for use in protein assays is presented in this communication.
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Affiliation(s)
- Xinjian Yang
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Republic of Singapore
| | - Zhiqiang Gao
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Republic of Singapore
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213
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Credou J, Volland H, Berthelot T. Photolinker-free photoimmobilization of antibodies onto cellulose for the preparation of immunoassay membranes. J Mater Chem B 2015; 3:1079-1088. [DOI: 10.1039/c4tb01138d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Immunoassay membranes were produced by photoimmobilization of antibodies onto cellulose without any photocoupling intermediate nor any biomolecule or substrate pretreatment.
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Affiliation(s)
- Julie Credou
- CEA Saclay
- IRAMIS
- NIMBE
- LICSEN (Laboratory of Innovation in Surface Chemistry and Nanosciences)
- F-91191 Gif sur Yvette
| | - Hervé Volland
- CEA Saclay
- iBiTec-S
- SPI
- LERI (Laboratory of Study and Research in Immunoanalysis)
- F-91191 Gif sur Yvette
| | - Thomas Berthelot
- CEA Saclay
- IRAMIS
- NIMBE
- LICSEN (Laboratory of Innovation in Surface Chemistry and Nanosciences)
- F-91191 Gif sur Yvette
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214
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Zhang QM, Berg D, Mugo SM, Serpe MJ. Lipase-modified pH-responsive microgel-based optical device for triglyceride sensing. Chem Commun (Camb) 2015; 51:9726-8. [DOI: 10.1039/c5cc02853a] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lipase-modified poly (N-isopropylacrylamide)-based microgels were synthesized, and used to fabricate optical devices (etalons). Triglyceride reacted with lipase to generate fatty acid, which yielded an etalon response.
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Affiliation(s)
| | - Darren Berg
- Physical Sciences Department
- MacEwan University
- Edmonton
- T5J 4S2 Canada
| | - Samuel M. Mugo
- Physical Sciences Department
- MacEwan University
- Edmonton
- T5J 4S2 Canada
| | - Michael J. Serpe
- Department of Chemistry
- University of Alberta
- Edmonton
- T6G 2G2 Canada
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215
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216
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Abstract
Chemical sensing is of critical importance to human health, safety, and security, yet it is not broadly implemented because existing sensors often require trained personnel, expensive and bulky equipment, and have large power requirements. This study reports the development of a smartphone-based sensing strategy that employs chemiresponsive nanomaterials integrated into the circuitry of commercial near-field communication tags to achieve non-line-of-sight, portable, and inexpensive detection and discrimination of gas-phase chemicals (e.g., ammonia, hydrogen peroxide, cyclohexanone, and water) at part-per-thousand and part-per-million concentrations.
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217
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Arteta MY, Berti D, Montis C, Campbell RA, Clifton LA, Skoda MWA, Soltwedel O, Baglioni P, Nylander T. Molecular recognition of nucleic acids by nucleolipid/dendrimer surface complexes. SOFT MATTER 2014; 10:8401-8405. [PMID: 25246334 DOI: 10.1039/c4sm01733a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We show for the first time that 1,2-dilauroyl-sn-glycero-3-phosphatidyladenosine nucleolipid surface complexes with cationic poly(amidoamine) dendrimers can be used to selectively bind DNA including oligonucleotides. This molecular recognition has high potential for applications involving biomedical and bioanalytic devices as well as drug delivery systems based on nucleic acids.
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Affiliation(s)
- Marianna Yanez Arteta
- Physical Chemistry, Department of Chemistry, Lund University, P. O. Box 124, S-221 00 Lund, Sweden.
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218
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Hosseini S, Ibrahim F, Djordjevic I, Rothan HA, Yusof R, van der Marel C, Benzina A, Koole LH. Synthesis and characterization of methacrylic microspheres for biomolecular recognition: Ultrasensitive biosensor for Dengue virus detection. Eur Polym J 2014. [DOI: 10.1016/j.eurpolymj.2014.08.010] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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219
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Krejcova L, Nguyen HV, Hynek D, Guran R, Adam V, Kizek R. Paramagnetic Particles and PNA Probe for Automated Separation and Electrochemical Detection of Influenza. Chromatographia 2014. [DOI: 10.1007/s10337-014-2737-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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220
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Ašeris V, Gaidamauskaitė E, Kulys J, Baronas R. Modelling glucose dehydrogenase-based amperometric biosensor utilizing synergistic substrates conversion. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.08.125] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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221
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Yu J, Zhang L, Xu X, Liu S. Quantitative detection of potassium ions and adenosine triphosphate via a nanochannel-based electrochemical platform coupled with G-quadruplex aptamers. Anal Chem 2014; 86:10741-8. [PMID: 25333881 DOI: 10.1021/ac502752g] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The development of synthetic nanopores and nanochannels that mimick ion channels in living organisms for biosensing applications has been, and still remains, a great challenge. Although the biological applications of nanopores and nanochannels have achieved considerable development as a result of nanotechnology advancements, there are few reports of a facile way to realize those applications. Herein, a nanochannel-based electrochemical platform was developed for the quantitative detection of biorelated small molecules such as potassium ions (K(+)) and adenosine triphosphate (ATP) in a facile way. For this purpose, K(+) or ATP G-quadruplex aptamers were covalently assembled onto the inner wall of porous anodic alumina (PAA) nanochannels through a Schiff reaction between -CHO groups in the aptamer and amino groups on the inner wall of the PAA nanochannels under mild reaction conditions. Conformational switching of the aptamers confined in the nanochannels occurs in the presence of the target molecules, resulting in increased steric hindrance in the nanochannels. Changes in steric hindrance in the nanochannels were monitored by the anodic current of indicator molecules transported through the nanochannels. As a result, quantitative detection of K(+) and ATP was realized with a concentration ranging from 0.005 to 1.0 mM for K(+) and 0.05 to 10.0 mM for ATP. The proposed platform displayed significant selectivity, good reproducibility, and universality. Moreover, this platform showed its potential for use in the detection of other aptamer-based analytes, which could promote its development for use in biological detection and clinical diagnosis.
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Affiliation(s)
- Jiachao Yu
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, Suzhou Research Institute of Southeast University, School of Chemistry and Chemical Engineering, Southeast University , Nanjing 210096, P. R. China
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222
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Safavieh M, Ahmed MU, Ng A, Zourob M. High-throughput real-time electrochemical monitoring of LAMP for pathogenic bacteria detection. Biosens Bioelectron 2014; 58:101-6. [DOI: 10.1016/j.bios.2014.02.002] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Revised: 02/03/2014] [Accepted: 02/04/2014] [Indexed: 02/04/2023]
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223
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Arana M, Tettamanti CS, Bercoff PG, Rodríguez MC. Magnetite NPs@C with Highly-Efficient Peroxidase-Like Catalytic Activity as an Improved Biosensing Strategy for Selective Glucose Detection. ELECTROANAL 2014. [DOI: 10.1002/elan.201400159] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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224
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Smartphones for Cell and Biomolecular Detection. Ann Biomed Eng 2014; 42:2205-17. [DOI: 10.1007/s10439-014-1055-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 06/04/2014] [Indexed: 10/25/2022]
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225
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Meng J, Zhang P, Wang S. Recent Progress in Biointerfaces with Controlled Bacterial Adhesion by Using Chemical and Physical Methods. Chem Asian J 2014; 9:2004-16. [DOI: 10.1002/asia.201402200] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Indexed: 11/12/2022]
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226
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Chiu TC. Recent advances in bacteria identification by matrix-assisted laser desorption/ionization mass spectrometry using nanomaterials as affinity probes. Int J Mol Sci 2014; 15:7266-80. [PMID: 24786089 PMCID: PMC4057671 DOI: 10.3390/ijms15057266] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Revised: 04/14/2014] [Accepted: 04/16/2014] [Indexed: 02/01/2023] Open
Abstract
Identifying trace amounts of bacteria rapidly, accurately, selectively, and with high sensitivity is important to ensuring the safety of food and diagnosing infectious bacterial diseases. Microbial diseases constitute the major cause of death in many developing and developed countries of the world. The early detection of pathogenic bacteria is crucial in preventing, treating, and containing the spread of infections, and there is an urgent requirement for sensitive, specific, and accurate diagnostic tests. Matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) is an extremely selective and sensitive analytical tool that can be used to characterize different species of pathogenic bacteria. Various functionalized or unmodified nanomaterials can be used as affinity probes to capture and concentrate microorganisms. Recent developments in bacterial detection using nanomaterials-assisted MALDI-MS approaches are highlighted in this article. A comprehensive table listing MALDI-MS approaches for identifying pathogenic bacteria, categorized by the nanomaterials used, is provided.
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Affiliation(s)
- Tai-Chia Chiu
- Department of Applied Science, National Taitung University, 684 Section 1, Chunghua Road, Taitung 95002, Taiwan.
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227
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Platinum porous nanoparticles for the detection of cancer biomarkers: what are the advantages over existing techniques? Bioanalysis 2014; 6:903-5. [DOI: 10.4155/bio.14.32] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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228
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Gao Y, Zhou Q, Matharu Z, Liu Y, Kwa T, Revzin A. A mathematical method for extracting cell secretion rate from affinity biosensors continuously monitoring cell activity. BIOMICROFLUIDICS 2014; 8:021501. [PMID: 24803956 PMCID: PMC4008758 DOI: 10.1063/1.4874216] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Accepted: 04/21/2014] [Indexed: 05/14/2023]
Abstract
Our laboratory has previously developed miniature aptasensors that may be integrated at the site of a small group of cells for continuous detection of cell secreted molecules such as inflammatory cytokine interferon gamma (IFN-γ). In a system such as this, the signal measured at the sensor surfaces is a complex function of transport, reaction, as well as of cellular activity. Herein, we report on the development of a mathematical framework for extracting cell production rates from binding curves generated with affinity biosensors. This framework consisted of a diffusion-reaction model coupled to a root finding algorithm for determining cell production rates values causing convergence of a predetermined criterion. To experimentally validate model predictions, we deployed a microfluidic device with an integrated biosensor for measuring the IFN-γ release from CD4 T cells. We found close agreement between secretion rate observed theoretically and those observed experimentally. After taking into account the differences in sensor geometry and reaction kinetics, the method for cell secretion rate determination described in this paper may be broadly applied to any biosensor continuously measuring cellular activity.
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Affiliation(s)
- Yandong Gao
- Department of Biomedical Engineering, University of California, Davis, California 95616, USA
| | - Qing Zhou
- Department of Biomedical Engineering, University of California, Davis, California 95616, USA
| | - Zimple Matharu
- Department of Biomedical Engineering, University of California, Davis, California 95616, USA
| | - Ying Liu
- Department of Biomedical Engineering, University of California, Davis, California 95616, USA
| | - Timothy Kwa
- Department of Biomedical Engineering, University of California, Davis, California 95616, USA
| | - Alexander Revzin
- Department of Biomedical Engineering, University of California, Davis, California 95616, USA
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229
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Enzyme-free and label-free ultrasensitive electrochemical detection of DNA and adenosine triphosphate by dendritic DNA concatamer-based signal amplification. Biosens Bioelectron 2014; 56:12-8. [PMID: 24445068 DOI: 10.1016/j.bios.2013.12.066] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 12/14/2013] [Accepted: 12/26/2013] [Indexed: 01/18/2023]
Abstract
Hybridization chain reaction (HCR) strategy has been well developed for the fabrication of various biosensing platforms for signal amplification. Herein, a novel enzyme-free and label-free ultrasensitive electrochemical DNA biosensing platform for the detection of target DNA and adenosine triphosphate (ATP) was firstly proposed, in which three auxiliary DNA probes were ingeniously designed to construct the dendritic DNA concatamer via HCR strategy and used as hexaammineruthenium(III) chloride (RuHex) carrier for signal amplification. With the developed dendritic DNA concatamer-based signal amplification strategy, the DNA biosensor could achieve an ultrasensitive electrochemical detection of DNA and ATP with a superior detection limit as low as 5 aM and 20 fM, respectively, and also demonstrate a high selectivity for DNA and ATP detection. The currently proposed dendritic DNA concatamer opens a promising direction to construct ultrasensitive DNA biosensing platform for biomolecular detection in bioanalysis and clinical biomedicine, which offers the distinct advantages of simplicity and cost efficiency owing to no need of any kind of enzyme, chemical modification or labeling.
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230
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Sekhon SS, Kim SG, Lee SH, Jang A, Min J, Ahn JY, Kim YH. Advances in pathogen-associated molecules detection using Aptamer based biosensors. Mol Cell Toxicol 2014. [DOI: 10.1007/s13273-013-0039-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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231
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Govindhan M, Adhikari BR, Chen A. Nanomaterials-based electrochemical detection of chemical contaminants. RSC Adv 2014. [DOI: 10.1039/c4ra10399h] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Recent advances in the development of nanomaterials-based electrochemical sensors for environmental monitoring and food safety applications are assessed.
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Affiliation(s)
| | | | - Aicheng Chen
- Department of Chemistry
- Lakehead University
- Thunder Bay, Canada
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232
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Hosseini S, Ibrahim F, Djordjevic I, Koole LH. Recent advances in surface functionalization techniques on polymethacrylate materials for optical biosensor applications. Analyst 2014; 139:2933-43. [DOI: 10.1039/c3an01789c] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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233
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Clear KJ, Stroud S, Smith BD. Dual colorimetric and luminescent assay for dipicolinate, a biomarker of bacterial spores. Analyst 2013; 138:7079-82. [PMID: 24106737 DOI: 10.1039/c3an01658g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A binary mixture of Tb(3+) and pyrocatechol violet (PV) forms a 1 : 1 Tb(3+)/PV complex that can be used in a dye displacement assay. Addition of dipicolinate (DPA) to the Tb(3+)/DPA complex simultaneously produces a PV color change from blue to yellow and luminescence emission from the newly formed Tb(3+)/DPA complex.
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Affiliation(s)
- Kasey J Clear
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA.
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