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Breault-Turcot J, Masson JF. Nanostructured substrates for portable and miniature SPR biosensors. Anal Bioanal Chem 2012; 403:1477-84. [PMID: 22526642 DOI: 10.1007/s00216-012-5963-1] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Revised: 02/21/2012] [Accepted: 03/21/2012] [Indexed: 12/30/2022]
Abstract
Surface plasmon resonance (SPR) biosensing has matured into a valuable analytical technique for measurements related to biomolecules, environmental contaminants, and the food industry. Contemporary SPR instruments are mainly suitable for laboratory-based measurements. However, several point-of-measurement applications would benefit from simple, small, portable and inexpensive sensors to assess the health condition of a patient, potential environmental contamination, or food safety issues. This Trend article explores nanostructured substrates for improving the sensitivity of classical SPR instruments and nanoparticle (NP)-based colorimetric substrates that may provide a solution to the development of point-of-measurement SPR techniques. Novel nanomaterials and methodology capable of enhancing the sensitivity of classical SPR sensors are destined to improve the limits of detection of miniature SPR instruments to the level required for most applications. In a different approach, paper or substrate-based SPR assays based on NPs, are a highly promising topic of research that may facilitate the widespread use of a novel class of miniature and portable SPR instruments.
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Affiliation(s)
- Julien Breault-Turcot
- Departement de chimie, Universite de Montreal, C.P. 6128 Succ. Centre-Ville, Montreal, Qc H3C 3J7, Canada
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52
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Hossain SMZ, Ozimok C, Sicard C, Aguirre SD, Ali MM, Li Y, Brennan JD. Multiplexed paper test strip for quantitative bacterial detection. Anal Bioanal Chem 2012; 403:1567-76. [DOI: 10.1007/s00216-012-5975-x] [Citation(s) in RCA: 172] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Revised: 03/21/2012] [Accepted: 03/26/2012] [Indexed: 11/30/2022]
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53
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Araújo AC, Song Y, Lundeberg J, Ståhl PL, Brumer H. Activated Paper Surfaces for the Rapid Hybridization of DNA through Capillary Transport. Anal Chem 2012; 84:3311-7. [DOI: 10.1021/ac300025v] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | - Patrik L. Ståhl
- Department of Cell- and Molecular
Biology, Karolinska Institutet, SE-171
77, Stockholm, Sweden
| | - Harry Brumer
- Michael Smith Laboratories and
Department of Chemistry, University of British Columbia, 2185 East Mall, Vancouver, BC, V6T 1Z4, Canada
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54
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Pohanka M. Acetylcholinesterase Based Dipsticks with Indoxylacetate as a Substrate for Assay of Organophosphates and Carbamates. ANAL LETT 2012. [DOI: 10.1080/00032719.2011.644743] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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55
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Li X, Ballerini DR, Shen W. A perspective on paper-based microfluidics: Current status and future trends. BIOMICROFLUIDICS 2012; 6:11301-1130113. [PMID: 22662067 PMCID: PMC3365319 DOI: 10.1063/1.3687398] [Citation(s) in RCA: 454] [Impact Index Per Article: 37.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Accepted: 02/01/2012] [Indexed: 05/03/2023]
Abstract
"Paper-based microfluidics" or "lab on paper," as a burgeoning research field with its beginning in 2007, provides a novel system for fluid handling and fluid analysis for a variety of applications including health diagnostics, environmental monitoring as well as food quality testing. The reasons why paper becomes an attractive substrate for making microfluidic systems include: (1) it is a ubiquitous and extremely cheap cellulosic material; (2) it is compatible with many chemical/biochemical/medical applications; and (3) it transports liquids using capillary forces without the assistance of external forces. By building microfluidic channels on paper, liquid flow is confined within the channels, and therefore, liquid flow can be guided in a controlled manner. A variety of 2D and even 3D microfluidic channels have been created on paper, which are able to transport liquids in the predesigned pathways on paper. At the current stage of its development, paper-based microfluidic system is claimed to be low-cost, easy-to-use, disposable, and equipment-free, and therefore, is a rising technology particularly relevant to improving the healthcare and disease screening in the developing world, especially for those areas with no- or low-infrastructure and limited trained medical and health professionals. The research in paper-based microfluidics is experiencing a period of explosion; most published works have focused on: (1) inventing low-cost and simple fabrication techniques for paper-based microfluidic devices; and (2) exploring new applications of paper-based microfluidics by incorporating efficient detection methods. This paper aims to review both the fabrication techniques and applications of paper-based microfluidics reported to date. This paper also attempts to convey to the readers, from the authors' point of view the current limitations of paper-based microfluidics which require further research, and a few perspective directions this new analytical system may take in its development.
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Affiliation(s)
- Xu Li
- Australian Pulp and Paper Institute, Department of Chemical Engineering, Monash University, Clayton Campus, Victoria 3800, Australia
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56
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Performance and penetration of laccase and ABTS inks on various printing substrates. Colloids Surf B Biointerfaces 2012; 90:119-28. [DOI: 10.1016/j.colsurfb.2011.10.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2011] [Revised: 09/05/2011] [Accepted: 10/06/2011] [Indexed: 11/16/2022]
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57
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Shen X, Liang F, Zhang G, Zhang D. A new continuous fluorometric assay for acetylcholinesterase activity and inhibitor screening with emissive core–shell silica particles containing tetraphenylethylene fluorophore. Analyst 2012; 137:2119-23. [DOI: 10.1039/c2an35154d] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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58
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Ispas CR, Crivat G, Andreescu S. Review: Recent Developments in Enzyme-Based Biosensors for Biomedical Analysis. ANAL LETT 2012. [DOI: 10.1080/00032719.2011.633188] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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59
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Liang J, Wang Y, Liu B. Paper-based fluoroimmunoassay for rapid and sensitive detection of antigen. RSC Adv 2012. [DOI: 10.1039/c2ra20156a] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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60
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Hossain SMZ, Brennan JD. β-Galactosidase-Based Colorimetric Paper Sensor for Determination of Heavy Metals. Anal Chem 2011; 83:8772-8. [PMID: 22029903 DOI: 10.1021/ac202290d] [Citation(s) in RCA: 254] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- S. M. Zakir Hossain
- Department of Chemistry & Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4M1
| | - John D. Brennan
- Department of Chemistry & Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4M1
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Abel B, Akinsule A, Andrews C, Aslan K. Plasmon-Enhanced Enzymatic Reactions: A Study of Nanoparticle-Enzyme Distance- and Nanoparticle Loading-Dependent Enzymatic Activity. ACTA ACUST UNITED AC 2011; 3:184-191. [PMID: 21949594 DOI: 10.5101/nbe.v3i3.p184-191] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A detailed investigation of the dependence of the efficiency of plasmon-enhanced enzymatic reactions on the distance between silver island films (SIFs) and horse radish peroxidase (HRP) enzyme and on the loading of SIFs on glass surfaces is presented. Three different extent of loading of SIFs on glass slides were used: 1) low, 2) medium and 3) high, which was characterized by using optical absorption spectroscopy and scanning electron microscopy. Streptavidin-linked HRP enzyme was deposited onto SIFs and glass slides by using three different strategies: strategy 1: biotin-avidin protein assay (distance between SIFs and HRP = 4-8 nm), strategy 2: self assembled monolayers (SAMs) (1-5 nm), strategy 3: polymer layer (1-5 nm). The efficiency of enzymatic conversion of O-phenylenediamine dihydrochloride (OPD) to a colored product by HRP on SIFs and glass surfaces was assessed by optical absorption spectroscopy. The distance between SIFs and HRP and the extent of loading of SIFs on the glass surfaces were shown to have significant effect on the efficiency of plasmon-enhanced enzymatic reactions. In this regard, up to an %250 increase in enzymatic conversion of OPD was observed from SIFs with high loading using strategy 1. In addition, we have studied the potential of repeated use of SIFs in plasmon-enhanced enzymatic reactions.
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Affiliation(s)
- Biebele Abel
- Morgan State University, Department of Chemistry, 1700 East Cold Spring Lane, Baltimore, MD 21251 USA
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Carrasquilla C, Xiao Y, Xu CQ, Li Y, Brennan JD. Enhancing sensitivity and selectivity of long-period grating sensors using structure-switching aptamers bound to gold-doped macroporous silica coatings. Anal Chem 2011; 83:7984-91. [PMID: 21951178 DOI: 10.1021/ac2020432] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
High surface area, sol-gel derived macroporous silica films doped with gold nanoparticles (AuNP) are used as a platform for high-density affinity-based immobilization of functional structure-switching DNA aptamer molecules onto Michelson interferometer long-period grating (LPG) fiber sensors, allowing for label-free detection of small molecular weight analytes such as adenosine triphosphate (ATP). The high surface area afforded by the sol-gel derived material allowed high loading of DNA aptamers, while the inclusion of gold nanoparticles within the silica film provided a high refractive index (RI) overlay, which is required to enhance the sensitivity of the LPG sensor according to our numerical simulations. By using a structure-switching aptamer construct that could release an oligonucleotide upon binding of ATP, the effective change in RI was both enhanced and inverted (i.e., binding of ATP caused a net reduction in molecular weight and refractive index), resulting in a system that prevented signals originating from nonspecific binding. This is the first report on the coupling of aptamers to LPG fiber sensors and the first use of high RI AuNP/silica films as supports to immobilize biomolecules onto the LPG sensor surface. The dual functionality of such films to both improve binding density and LPG sensor cladding refractive index results in a substantial enhancement in the sensitivity of such sensors for small molecule detection.
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Affiliation(s)
- Carmen Carrasquilla
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario, Canada, L8S 4M1
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63
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Wu S, Lan X, Zhao W, Li Y, Zhang L, Wang H, Han M, Tao S. Controlled immobilization of acetylcholinesterase on improved hydrophobic gold nanoparticle/Prussian blue modified surface for ultra-trace organophosphate pesticide detection. Biosens Bioelectron 2011; 27:82-7. [DOI: 10.1016/j.bios.2011.06.020] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2011] [Revised: 06/15/2011] [Accepted: 06/16/2011] [Indexed: 10/18/2022]
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64
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Ornatska M, Sharpe E, Andreescu D, Andreescu S. Paper Bioassay Based on Ceria Nanoparticles as Colorimetric Probes. Anal Chem 2011; 83:4273-80. [DOI: 10.1021/ac200697y] [Citation(s) in RCA: 285] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Maryna Ornatska
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699-5810, United States
| | - Erica Sharpe
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699-5810, United States
| | - Daniel Andreescu
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699-5810, United States
| | - Silvana Andreescu
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699-5810, United States
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