51
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Saa L, Grinyte R, Sánchez-Iglesias A, Liz-Marzán LM, Pavlov V. Blocked Enzymatic Etching of Gold Nanorods: Application to Colorimetric Detection of Acetylcholinesterase Activity and Its Inhibitors. ACS APPLIED MATERIALS & INTERFACES 2016; 8:11139-11146. [PMID: 27070402 DOI: 10.1021/acsami.6b01834] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The anisotropic morphology of gold nanorods (AuNRs) has been shown to lead to nonuniform ligand distribution and preferential etching through their tips. We have recently demonstrated that this effect can be achieved by biocatalytic oxidation with hydrogen peroxide, catalyzed by the enzyme horseradish peroxidase (HRP). We report here that modification of AuNRs with thiol-containing organic molecules such as glutathione and thiocholine hinders enzymatic AuNR etching. Higher concentrations of thiol-containing molecules in the reaction mixture gradually decrease the rate of enzymatic etching, which can be monitored by UV-vis spectroscopy through changes in the AuNR longitudinal plasmon band. This effect can be applied to develop novel optical assays for acetylcholinesterase (AChE) activity. The biocatalytic hydrolysis of acetylthiocholine by AChE yields thiocholine, which prevents enzymatic AuNR etching in the presence of HRP. Additionally, the same bioassay can be used for the detection of nanomolar concentrations of AChE inhibitors such as paraoxon and galanthamine.
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Affiliation(s)
- Laura Saa
- CIC biomaGUNE , Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
| | - Ruta Grinyte
- CIC biomaGUNE , Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
| | | | - Luis M Liz-Marzán
- CIC biomaGUNE , Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48011 Bilbao, Spain
- Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine, Ciber-BBN, Spain
| | - Valeri Pavlov
- CIC biomaGUNE , Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
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52
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Yue G, Su S, Li N, Shuai M, Lai X, Astruc D, Zhao P. Gold nanoparticles as sensors in the colorimetric and fluorescence detection of chemical warfare agents. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.11.009] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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53
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Shen Y, Yan F, Huang X, Zhang X, Zhang Y, Zhang C, Jin J, Li H, Yao S. A new water-soluble and colorimetric fluorescent probe for highly sensitive detection of organophosphorus pesticides. RSC Adv 2016. [DOI: 10.1039/c6ra16509e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
A new water-soluble fluorescent probe bearing 1,8-naphthalimide dye, a quaternary ammonium salt and a boronate group was developed for the detection of organophosphorus pesticides.
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Affiliation(s)
- Youming Shen
- Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting Lake Ecological Economic Zone
- College of Chemistry and Chemical Engineering
- Hunan University of Arts and Science
- ChangDe
- PR China
| | - Fengmei Yan
- Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting Lake Ecological Economic Zone
- College of Chemistry and Chemical Engineering
- Hunan University of Arts and Science
- ChangDe
- PR China
| | - Xi Huang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha 410081
- PR China
| | - Xiangyang Zhang
- Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting Lake Ecological Economic Zone
- College of Chemistry and Chemical Engineering
- Hunan University of Arts and Science
- ChangDe
- PR China
| | - Youyu Zhang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha 410081
- PR China
| | - Chunxiang Zhang
- Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting Lake Ecological Economic Zone
- College of Chemistry and Chemical Engineering
- Hunan University of Arts and Science
- ChangDe
- PR China
| | - Junling Jin
- Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting Lake Ecological Economic Zone
- College of Chemistry and Chemical Engineering
- Hunan University of Arts and Science
- ChangDe
- PR China
| | - Haitao Li
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha 410081
- PR China
| | - Shouzhuo Yao
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha 410081
- PR China
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54
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Qian S, Leng Y, Lin H. Strong base pre-treatment for colorimetric sensor array detection and identification of N-methyl carbamate pesticides. RSC Adv 2016. [DOI: 10.1039/c5ra25805g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A strategy of strong base pre-treatment was developed and employed to the colorimetric sensor array detection and differentiation of N-methyl carbamate pesticides.
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Affiliation(s)
- Sihua Qian
- Ningbo Institute of Materials Technology & Engineering (NIMTE)
- Chinese Academy of Sciences
- Ningbo 315201
- China
| | - Yumin Leng
- Ningbo Institute of Materials Technology & Engineering (NIMTE)
- Chinese Academy of Sciences
- Ningbo 315201
- China
- College of Physics and Electronic Engineering
| | - Hengwei Lin
- Ningbo Institute of Materials Technology & Engineering (NIMTE)
- Chinese Academy of Sciences
- Ningbo 315201
- China
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55
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Jang YJ, Kim K, Tsay OG, Atwood DA, Churchill DG. Update 1 of: Destruction and Detection of Chemical Warfare Agents. Chem Rev 2015; 115:PR1-76. [DOI: 10.1021/acs.chemrev.5b00402] [Citation(s) in RCA: 249] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yoon Jeong Jang
- Molecular Logic Gate Laboratory, Department of Chemistry, KAIST, Daejeon, 305-701, Republic of Korea
| | - Kibong Kim
- Molecular Logic Gate Laboratory, Department of Chemistry, KAIST, Daejeon, 305-701, Republic of Korea
| | - Olga G. Tsay
- Molecular Logic Gate Laboratory, Department of Chemistry, KAIST, Daejeon, 305-701, Republic of Korea
| | - David A. Atwood
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506-0055, United States
| | - David G. Churchill
- Molecular Logic Gate Laboratory, Department of Chemistry, KAIST, Daejeon, 305-701, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), 373-1 Guseong-dong, Yuseong-gu, Daejeon, 305−701, Republic of Korea
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56
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Dong C, Wu G, Wang Z, Ren W, Zhang Y, Shen Z, Li T, Wu A. Selective colorimetric detection of Cr(iii) and Cr(vi) using gallic acid capped gold nanoparticles. Dalton Trans 2015; 45:8347-54. [PMID: 26606324 DOI: 10.1039/c5dt04099j] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A colorimetric assay is proposed for the selective detection of Cr(iii) and Cr(vi) via the aggregation-induced color change of gallic acid capped gold nanoparticles (GA-AuNPs). The AuNPs are characterized using UV-vis spectroscopy, transmission electron microscopy (TEM), dynamic light scattering (DLS) and Fourier-transform infrared spectrometry (FT-IR). To detect Cr(iii) and Cr(vi) coexisting in a sample, citrate and thiosulfate were applied to mask Cr(vi) for the detection of Cr(iii), and ethylenediaminetetraacetic acid disodium salt (EDTA) was applied to mask Cr(iii) for the detection of Cr(vi). At optimized experimental conditions, the selectivity of these AuNPs-based detection systems is excellent for Cr(iii) and/or Cr(vi) compared with other types of metal ions. The limit of detections (LODs) of a mixture of Cr(iii) and Cr(vi), Cr(iii) and Cr(vi) by eye vision are 1.5, 1.5 and 2 μM, respectively, and those by UV-vis spectroscopy are 0.05, 0.1 and 0.1 μM, respectively. The minimum detectable concentrations for Cr(iii) or Cr(vi) are all below the guideline value set by the US Environmental Protection Agency (EPA). The applicability of the AuNPs-based colorimetric sensor is also validated by the detection of Cr(iii) and Cr(vi) in electroplating wastewater and real water samples with high recoveries.
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Affiliation(s)
- Chen Dong
- School of Chemistry and Chemical Engineering, Anqing Normal College, Anqing, Anhui 246001, China.
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57
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Langer J, Novikov SM, Liz-Marzán LM. Sensing using plasmonic nanostructures and nanoparticles. NANOTECHNOLOGY 2015; 26:322001. [PMID: 26207013 DOI: 10.1088/0957-4484/26/32/322001] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Nanoparticles are widely used in various fields of science and technology as well as in everyday life. In particular, gold and silver nanoparticles display unique optical properties that render them extremely attractive for various applications. In this review, we focus on the use of noble metal nanoparticles as plasmonic nanosensors with extremely high sensitivity, even reaching single molecule detection. Sensors based on plasmon resonance shifts, as well as the use of surface-enhanced Raman scattering and surface-enhanced fluorescence, will be considered in this work.
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Affiliation(s)
- Judith Langer
- Bionanoplasmonics Laboratory, CIC biomaGUNE, Paseo de Miramón 182, E-20009 Donostia-San Sebastián, Spain
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58
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Qian S, Lin H. Colorimetric sensor array for detection and identification of organophosphorus and carbamate pesticides. Anal Chem 2015; 87:5395-400. [PMID: 25913282 DOI: 10.1021/acs.analchem.5b00738] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Due to relatively low persistence and high effectiveness for insect and pest eradication, organophosphates (OPs) and carbamates are the two major classes of pesticides that broadly used in agriculture. Hence, the sensitive and selective detection of OPs and carbamates is highly significant. In this current study, a colorimetric sensor array comprising five inexpensive and commercially available thiocholine and H2O2 sensitive indicators for the simultaneous detection and identification of OPs and carbamates is developed. The sensing mechanism of this array is based on the irreversible inhibition capability of OPs and carbamates to the activity of acetylcholinesterase (AChE), preventing production of thiocholine and H2O2 from S-acetylthiocholine and acetylcholine and thus resulting in decreased or no color reactions to thiocholine and H2O2 sensitive indicators. Through recognition patterns and standard statistical methods (i.e., hierarchical clustering analysis and principal component analysis), the as-developed array demonstrates not only discrimination of OPs and carbamates from other kinds of pesticides but, more interestingly, identification of them exactly from each other. Moreover, this array is experimentally confirmed to have high selectivity and sensitivity, good anti-interference capability, and potential applications in real samples for OPs and carbamates.
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Affiliation(s)
- Sihua Qian
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People's Republic of China
| | - Hengwei Lin
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People's Republic of China
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59
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Nanda Kumar D, Rajeshwari A, Alex SA, Chandrasekaran N, Mukherjee A. Acetylcholinesterase inhibition-based colorimetric determination of Hg 2+ using unmodified silver nanoparticles. NEW J CHEM 2015; 39:1172-1178. [DOI: 10.1039/c4nj01722f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
A highly sensitive colorimetric sensor for Hg2+ was developed with unmodified AgNPs using an enzyme-based indirect method.
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60
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Nanomaterials-based optical techniques for the detection of acetylcholinesterase and pesticides. SENSORS 2014; 15:499-514. [PMID: 25558991 PMCID: PMC4327032 DOI: 10.3390/s150100499] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Accepted: 12/23/2014] [Indexed: 01/09/2023]
Abstract
The large amount of pesticide residues in the environment is a threat to global health by inhibition of acetylcholinesterase (AChE). Biosensors for inhibition of AChE have been thus developed for the detection of pesticides. In line with the rapid development of nanotechnology, nanomaterials have attracted great attention and have been intensively studied in biological analysis due to their unique chemical, physical and size properties. The aim of this review is to provide insight into nanomaterial-based optical techniques for the determination of AChE and pesticides, including colorimetric and fluorescent assays and surface plasmon resonance.
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61
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Acetylcholinesterase-Free Colorimetric Detection of Chlorpyrifos in Fruit Juice Based on the Oxidation Reaction of H2O2 with Chlorpyrifos and ABTS2− Catalyzed by Hemin/G-Quadruplex DNAzyme. FOOD ANAL METHOD 2014. [DOI: 10.1007/s12161-014-0042-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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62
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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.
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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
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63
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Colorimetric and visual determination of total nereistoxin-related insecticides by exploiting a nereistoxin-driven aggregation of gold nanoparticles. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1347-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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64
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Martí A, Costero AM, Gaviña P, Parra M. Triarylcarbinol functionalized gold nanoparticles for the colorimetric detection of nerve agent simulants. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.03.139] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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65
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Teepoo S, Chumsaeng P, Palasak K, Bousod N, Mhadbamrung N, Sae-lim P. Unmodified gold nanoparticles as a simple colorimetric probe for ramoplanin detection. Talanta 2013; 117:518-22. [PMID: 24209375 DOI: 10.1016/j.talanta.2013.08.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 08/10/2013] [Accepted: 08/13/2013] [Indexed: 11/25/2022]
Abstract
In this paper unmodified gold nanoparticles (AuNPs) were used as a sensing element to detect ramoplamin. Detection relies on the fact that the dispersed AuNPs solution is red due to the intense surface plasmon absorption band at 530 nm whereas the AuNPs solution in the presence of ramoplanin is blue. Upon aggregation, there is a significant change in absorbance intensity at 620 nm. Based on the aggregation of AuNPs induced by ramoplanin, a simple colorimetric method was developed for determining the of ramoplanin concentration. Experimental conditions influencing the analytical performance such as particle size, amount of AuNPs, incubation time and pH were evaluated. Under the optimized experimental conditions, this method could detect ramoplanin in a linear range from 0.30 to 1.30 ppm with a detection limit of 0.01 ppm and exhibited good reproducibility, selectivity and recovery. Analysis time of this assay was only 2 min. To investigate its potential applicability, this assay was successfully applied for the determination of ramoplanin in urine samples without costly instruments.
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Affiliation(s)
- Siriwan Teepoo
- Department of Chemistry, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Pathumthani 12110, Thailand.
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66
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Wang F, Liu X, Lu CH, Willner I. Cysteine-mediated aggregation of Au nanoparticles: the development of a H2O2 sensor and oxidase-based biosensors. ACS NANO 2013; 7:7278-7286. [PMID: 23829431 DOI: 10.1021/nn402810x] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The cysteine-stimulated aggregation of Au nanoparticles (Au NPs) is used as an auxiliary reporting system for the optical detection of H2O2, for optical probing of the glucose oxidase (GOx) and the catalyzed oxidation of glucose, for probing the biocatalytic cascade composed of acetylcholine esterase/choline oxidase (AChE/ChOx), and for following the inhibition of AChE. The analytical paradigm is based on the I(-)-catalyzed oxidation of cysteine by H2O2 to cystine, a process that prohibits the cysteine-triggered aggregation of the Au NPs. The system enabled the analysis of H2O2 with a detection limit of 2 μM. As the GOx-biocatalyzed oxidation of glucose yields H2O2, and the AChE/ChOx cascade leads to the formation of H2O2, the two biocatalytic processes could be probed by the cysteine-stimulated aggregation of the Au NPs. Since AChE is inhibited by 1,5-bis(4-allyldimethylammonium phenyl)pentane-3-one dibromide, the biocatalytic AChE/ChOx cascade is inhibited by the inhibitor, thus leading to the enhanced cysteine-mediated aggregation of the NPs. The results suggest the potential implementation of the cysteine-mediated aggregation of Au NPs in the presence of AChE/ChOx as a sensing platform for the optical detection of chemical warfare agents.
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Affiliation(s)
- Fuan Wang
- Institute of Chemistry, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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67
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68
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Martí A, Costero AM, Gaviña P, Gil S, Parra M, Brotons-Gisbert M, Sánchez-Royo JF. Functionalized Gold Nanoparticles as an Approach to the Direct Colorimetric Detection of DCNP Nerve Agent Simulant. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300339] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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69
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Liao S, Han W, Ding H, Xie D, Tan H, Yang S, Wu Z, Shen G, Yu R. Modulated dye retention for the signal-on fluorometric determination of acetylcholinesterase inhibitor. Anal Chem 2013; 85:4968-73. [PMID: 23597308 DOI: 10.1021/ac400865t] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A novel fluorometric assay method based on target-induced signal on was developed for acetylcholinesterase (AChE) inhibitor with obviously improved detection sensitivity. In this method, the AChE molecules catalyzed the hydrolysis of acetylthiocholine (ATCl) to form thiocholine, which in turn can specifically react with fluorescent squaraine derivative, a specific chemodosimeter for thiol-containing compounds, resulting in fluorescence quenching and offering a low fluorometric background for the further detection of AChE inhibitor. In the presence of AChE inhibitor, the catalytic hydrolysis of ATCl is blocked, and then the squaraine derivative remains intact and shows signal-on fluorescence. The amount of the remaining fluorescent squaraine derivative is positively correlated with that of the AChE inhibitor in solution. This new designed sensing system shows an obviously improved sensitivity toward target with a detection limit of 5 pg mL(-1) (0.018 nM) for the AChE inhibitor, comparing favorably with previously reported fluorometric methods. To our best knowledge, this new method is the first example of fluorometric enzymatic assay for AChE inhibitors based on such a signal-on principle and using a specific reaction, which has potential to offer an effective strategy for the detection of AChE inhibitors.
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Affiliation(s)
- Shuzhen Liao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
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70
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ZHAO JING, BO BING, YIN YONGMEI, LI GENXI. GOLD NANOPARTICLES-BASED BIOSENSORS FOR BIOMEDICAL APPLICATION. ACTA ACUST UNITED AC 2012. [DOI: 10.1142/s1793984412300087] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Gold nanoparticles are the most extensively studied nanomaterials for biomedical application due to their unique properties, such as rapid and simple synthesis, large surface area, strong adsorption ability and facile conjugation to various biomolecules. The remarkable photophysical properties of gold nanoparticles have provided plenty of opportunities for the preparation of gold nanoparticles-based optical biosensors, while the excellent biocompatibility, conductivity, catalytic properties and large surface-to-volume ratio have facilitated the application of gold nanoparticles in the construction of electrochemical biosensors. In this review, we mainly detail the gold nanoparticles-based optical and electrochemical biosensors for biomedical application in the recent two years, which have exhibited greatly enhanced analytical performances in the detection of DNA, proteins and some important small molecules.
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Affiliation(s)
- JING ZHAO
- Laboratory of Biosensing Technology, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - BING BO
- Department of Oncology, The First Affiliated, Hospital of Nanjing Medical University, Nanjing 210029, P. R. China
| | - YONG-MEI YIN
- Department of Oncology, The First Affiliated, Hospital of Nanjing Medical University, Nanjing 210029, P. R. China
| | - GEN-XI LI
- Laboratory of Biosensing Technology, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
- Department of Biochemistry and State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, P. R. China
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71
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Lu F, Doane TL, Zhu JJ, Burda C. Gold nanoparticles for diagnostic sensing and therapy. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.05.038] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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72
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Lafleur JP, Senkbeil S, Jensen TG, Kutter JP. Gold nanoparticle-based optical microfluidic sensors for analysis of environmental pollutants. LAB ON A CHIP 2012; 12:4651-4656. [PMID: 22824920 DOI: 10.1039/c2lc40543a] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Conventional methods of environmental analysis can be significantly improved by the development of portable microscale technologies for direct in-field sensing at remote locations. This report demonstrates the vast potential of gold nanoparticle-based microfluidic sensors for the rapid, in-field, detection of two important classes of environmental contaminants - heavy metals and pesticides. Using gold nanoparticle-based microfluidic sensors linked to a simple digital camera as the detector, detection limits as low as 0.6 μg L(-1) and 16 μg L(-1) could be obtained for the heavy metal mercury and the dithiocarbamate pesticide ziram, respectively. These results demonstrate that the attractive optical properties of gold nanoparticle probes combine synergistically with the inherent qualities of microfluidic platforms to offer simple, portable and sensitive sensors for environmental contaminants.
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Affiliation(s)
- Josiane P Lafleur
- Technical University of Denmark, Department of Micro- and Nanotechnology, Ørsteds Plads Bldg 345B, Kgs. Lyngby, Denmark
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73
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Highly sensitive and selective colorimetric detection of cartap residue in agricultural products. Talanta 2012; 101:382-7. [DOI: 10.1016/j.talanta.2012.09.045] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Revised: 09/20/2012] [Accepted: 09/22/2012] [Indexed: 01/31/2023]
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74
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Highly sensitive colorimetric detection of organophosphate pesticides using copper catalyzed click chemistry. Talanta 2012. [PMID: 23200365 DOI: 10.1016/j.talanta.2012.10.016] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly sensitive colorimetric detection of organophosphate pesticides (OPs) was developed using Cu (I)-catalyzed click chemistry as the colorimetric signal amplification process between the acetylcholine esterase-acetylthiocholine system (AChE-ATCl) and azide- terminal alkyne-functionalized Au NPs as the colorimetric probe. It was demonstrated that the involvement of Cu (I)-catalyzed click chemistry allowed greatly improved colorimetric sensitivity for OPs detection based on the indirect modulation of click chemistry-induced Au NPs aggregation by the AChE-ATCl system. Paraoxon as the model OPs in the concentration range from 10(-6) to 10(-4)g/L can be directly detected using the naked-eye-based colorimetric assay without the aid of any complex instruments. The results for paraoxon detection in spiked apple juice were found to be in good agreement with that obtained by the conventional UV-vis spectroscopy. This simple and reliable assay would greatly improve the public safety and environmental protection in an on-site and real-time detection format.
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75
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Xie X, Xu W, Liu X. Improving colorimetric assays through protein enzyme-assisted gold nanoparticle amplification. Acc Chem Res 2012; 45:1511-20. [PMID: 22786666 DOI: 10.1021/ar300044j] [Citation(s) in RCA: 139] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The discovery of the DNA-mediated assembly of gold nanoparticles was a great moment in the history of science; this understanding and chemical control enabled the rational design of functional nanomaterials as novel probes in biodetection. In contrast with conventional probes such as organic dyes, gold nanoparticles exhibit high photostability and unique size-dependent optical properties. Because of their high extinction coefficients and strong distance dependent optical properties, these nanoparticles have emerged over the past decade as a promising platform for rapid, highly sensitive colorimetric assays that allow for the visual detection of low concentrations of metal ions, small molecules, and biomacromolecules. These discoveries have deepened our knowledge of biological phenomena and facilitated the development of many new diagnostic and therapeutic tools. Despite these many advances and continued research efforts, current nanoparticle-based colorimetric detection systems still suffer from several drawbacks, such as limited sensitivity and selectivity. This Account describes the recent development of colorimetric assays based on protein enzyme-assisted gold nanoparticle amplification. The benefits of such detection systems include significantly improved detection sensitivity and selectivity. First, we discuss the general design of enzyme-modified nanoparticle systems in colorimetric assays. We show that a quantitative understanding of the unique properties of different enzymes is paramount for effective biological assays. We then examine the assays for nucleic acid detection based on different types of enzymes, including endonucleases, ligases, and polymerases. For each of these assays, we identify the underlying principles that contribute to the enhanced detection capability of nanoparticle systems and illustrate them with selected examples. Furthermore, we demonstrate that the combination of gold nanoparticles and specific enzymes can probe enzyme dynamics and function with high specificity, offering substantial advantages in both sensitivity and specificity over conventional detection methods. The screening of nuclease, methyltransferase, protease, and kinase activities can be colorimetrically performed in a straightforward manner. Finally, we discuss examples of colorimetric assays for metal ions and small molecules that constitute important advances toward visual monitoring of enzyme catalytic functions and gene expression. Although these enzyme-assisted assay methods hold great promise for myriad applications in biomedicine and bioimaging, the application of the described techniques in vivo faces formidable challenges. In addition, researchers do not fully understand the interactions of gold nanoparticles with enzyme molecules. This understanding will require the development of new techniques to probe enzyme substrate dynamics at the particle interface with higher spatial resolution and chemical specificity.
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Affiliation(s)
- Xiaoji Xie
- Department of Chemistry, National University of Singapore, Singapore, and Institute of Material Research and Engineering, Singapore
| | - Wei Xu
- Department of Chemistry, National University of Singapore, Singapore, and Institute of Material Research and Engineering, Singapore
| | - Xiaogang Liu
- Department of Chemistry, National University of Singapore, Singapore, and Institute of Material Research and Engineering, Singapore
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Walton I, Davis M, Munro L, Catalano VJ, Cragg PJ, Huggins MT, Wallace KJ. A fluorescent dipyrrinone oxime for the detection of pesticides and other organophosphates. Org Lett 2012; 14:2686-9. [PMID: 22594956 DOI: 10.1021/ol300799f] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An N,N-carbonyl-bridged dipyrrinone oxime has been synthesized and studied as a potential sensor for organophosphates. The molecular sensor underwent a drastic colorimetric response upon formation of the adduct. The pesticide dimethoate was found to produce the biggest spectral response, with a limit of detection equal to 4.0 ppm using UV-visible spectroscopy. Minimal fluorescence "turn on" via a PET mechanism was seen, and molecular modeling studies were used to explain the lower than expected PET response. The X-ray crystal structure of the fluorescent dipyrrinone oxime was also obtained.
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Affiliation(s)
- Ian Walton
- Department of Chemistry, University of West Florida, 11000 University Parkway, Pensacola, Florida 32514, USA
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Liu D, Chen W, Wei J, Li X, Wang Z, Jiang X. A Highly Sensitive, Dual-Readout Assay Based on Gold Nanoparticles for Organophosphorus and Carbamate Pesticides. Anal Chem 2012; 84:4185-91. [DOI: 10.1021/ac300545p] [Citation(s) in RCA: 343] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Dingbin Liu
- CAS Key Lab
for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, 11
Beiyitiao, Zhongguancun, Beijing 100190, China
- Graduate University of Chinese Academy of Sciences,
Shijingshan, Yuquan Road 19A, Beijing 100049, China
| | - Wenwen Chen
- CAS Key Lab
for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, 11
Beiyitiao, Zhongguancun, Beijing 100190, China
- Graduate University of Chinese Academy of Sciences,
Shijingshan, Yuquan Road 19A, Beijing 100049, China
| | - Jinhua Wei
- Institute of Microbiology, Chinese Academy of Science, 8 North Second Street, Haidian District,
Beijing 100190, China
- Graduate University of Chinese Academy of Sciences,
Shijingshan, Yuquan Road 19A, Beijing 100049, China
| | - Xuebing Li
- Institute of Microbiology, Chinese Academy of Science, 8 North Second Street, Haidian District,
Beijing 100190, China
| | - Zhuo Wang
- CAS Key Lab
for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, 11
Beiyitiao, Zhongguancun, Beijing 100190, China
| | - Xingyu Jiang
- CAS Key Lab
for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, 11
Beiyitiao, Zhongguancun, Beijing 100190, China
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