51
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Fang X, Liu Y, Jimenez L, Duan Y, Adkins GB, Qiao L, Liu B, Zhong W. Rapid Enrichment and Sensitive Detection of Multiple Metal Ions Enabled by Macroporous Graphene Foam. Anal Chem 2017; 89:11758-11764. [PMID: 29034677 PMCID: PMC5687914 DOI: 10.1021/acs.analchem.7b03336] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Nanomaterials have shown great promise in advancing biomedical and environmental analysis because of the unique properties originated from their ultrafine dimensions. In general, nanomaterials are separately applied to either enhance detection by producing strong signals upon target recognition or to specifically extract analytes taking advantage of their high specific surface area. Herein, we report a dual-functional nanomaterial-based platform that can simultaneously enrich and enable sensitive detection of multiple metal ions. The macroporous graphene foam (GF) we prepared displays abundant phosphate groups on the surface and can extract divalent metal ions via metal-phosphate coordination. The enriched metal ions then activate the metal-responsive DNAzymes and produce the fluorescently labeled single-stranded DNAs that are adsorbed and quenched by the GF. The resultant fluorescence reduction can be used for metal quantitation. The present work demonstrated duplexed detection of Pb2+ and Cu2+ using the Pb- and Cu-responsive DNAzymes, achieving a low detection limit of 50 pM and 0.6 nM, respectively. Successful quantification of Pb2+ and Cu2+ in human serum and river water were achieved with high metal recovery. Since the phosphate-decorated GF can enrich diverse types of divalent metal cations, this dual-functional GF-DNAzyme platform can serve as a simple and cost-effective tool for rapid and accurate metal quantification in determination of human metal exposure and inspection of environmental contamination.
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Affiliation(s)
- Xiaoni Fang
- Department of Chemistry, University of California, Riverside, 92521 CA
| | - Yang Liu
- Department of Chemistry, University of California, Riverside, 92521 CA
| | - Luis Jimenez
- Department of Chemistry, University of California, Riverside, 92521 CA
| | - Yaokai Duan
- Department of Chemistry, University of California, Riverside, 92521 CA
| | - Gary Brent Adkins
- Department of Chemistry, University of California, Riverside, 92521 CA
| | - Liang Qiao
- Department of Chemistry, Institute of Biomedical Sciences and State Key Lab of Molecular Engineering of Polymers, Shanghai Stomatological Hospital, Fudan University, Shanghai 200433, China
| | - Baohong Liu
- Department of Chemistry, Institute of Biomedical Sciences and State Key Lab of Molecular Engineering of Polymers, Shanghai Stomatological Hospital, Fudan University, Shanghai 200433, China
| | - Wenwan Zhong
- Department of Chemistry, University of California, Riverside, 92521 CA
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Yin HS, Li BC, Zhou YL, Wang HY, Wang MH, Ai SY. Signal-on fluorescence biosensor for microRNA-21 detection based on DNA strand displacement reaction and Mg 2+ -dependent DNAzyme cleavage. Biosens Bioelectron 2017; 96:106-112. [DOI: 10.1016/j.bios.2017.04.049] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 04/28/2017] [Accepted: 04/28/2017] [Indexed: 01/09/2023]
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53
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Wang L, Zhou H, Liu B, Zhao C, Fan J, Wang W, Tong C. Fluorescence Assay for Ribonuclease H Based on Nonlabeled Substrate and DNAzyme Assisted Cascade Amplification. Anal Chem 2017; 89:11014-11020. [DOI: 10.1021/acs.analchem.7b02899] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Lanbo Wang
- College
of Biology, Hunan Province Key Laboratory of Plant Functional Genomics
and Developmental Regulation, State Key Laboratory of Chem/Biosensing
and Chemometrics, Hunan University, Changsha, Hunan 410082, China
| | - Hongyan Zhou
- College
of Biology, Hunan Province Key Laboratory of Plant Functional Genomics
and Developmental Regulation, State Key Laboratory of Chem/Biosensing
and Chemometrics, Hunan University, Changsha, Hunan 410082, China
| | - Bin Liu
- College
of Biology, Hunan Province Key Laboratory of Plant Functional Genomics
and Developmental Regulation, State Key Laboratory of Chem/Biosensing
and Chemometrics, Hunan University, Changsha, Hunan 410082, China
| | - Chuan Zhao
- College
of Biology, Hunan Province Key Laboratory of Plant Functional Genomics
and Developmental Regulation, State Key Laboratory of Chem/Biosensing
and Chemometrics, Hunan University, Changsha, Hunan 410082, China
| | - Jialong Fan
- College
of Biology, Hunan Province Key Laboratory of Plant Functional Genomics
and Developmental Regulation, State Key Laboratory of Chem/Biosensing
and Chemometrics, Hunan University, Changsha, Hunan 410082, China
| | - Wei Wang
- TCM
and Ethnomedicine Innovation and Development Laboratory, Sino-Luxemburg
TCM Research Center, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
| | - Chunyi Tong
- College
of Biology, Hunan Province Key Laboratory of Plant Functional Genomics
and Developmental Regulation, State Key Laboratory of Chem/Biosensing
and Chemometrics, Hunan University, Changsha, Hunan 410082, China
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54
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A smartphone colorimetric reader integrated with an ambient light sensor and a 3D printed attachment for on-site detection of zearalenone. Anal Bioanal Chem 2017; 409:6567-6574. [DOI: 10.1007/s00216-017-0605-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 08/06/2017] [Accepted: 08/24/2017] [Indexed: 12/23/2022]
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55
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Yun W, Wu H, Liu X, Fu M, Jiang J, Du Y, Yang L, Huang Y. Simultaneous fluorescent detection of multiple metal ions based on the DNAzymes and graphene oxide. Anal Chim Acta 2017; 986:115-121. [DOI: 10.1016/j.aca.2017.07.015] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 06/30/2017] [Accepted: 07/11/2017] [Indexed: 02/07/2023]
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56
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McGhee CE, Loh KY, Lu Y. DNAzyme sensors for detection of metal ions in the environment and imaging them in living cells. Curr Opin Biotechnol 2017; 45:191-201. [PMID: 28458112 DOI: 10.1016/j.copbio.2017.03.002] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 02/28/2017] [Accepted: 03/02/2017] [Indexed: 12/17/2022]
Abstract
The on-site and real-time detection of metal ions is important for environmental monitoring and for understanding the impact of metal ions on human health. However, developing sensors selective for a wide range of metal ions that can work in the complex matrices of untreated samples and cells presents significant challenges. To meet these challenges, DNAzymes, an emerging class of metal ion-dependent enzymes selective for almost any metal ion, have been functionalized with fluorophores, nanoparticles and other imaging agents and incorporated into sensors for the detection of metal ions in environmental samples and for imaging metal ions in living cells. Herein, we highlight the recent developments of DNAzyme-based fluorescent, colorimetric, SERS, electrochemical and electrochemiluminscent sensors for metal ions for these applications.
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Affiliation(s)
- Claire E McGhee
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States
| | - Kang Yong Loh
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States
| | - Yi Lu
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States.
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57
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Huang J, Su X, Li Z. Metal ion detection using functional nucleic acids and nanomaterials. Biosens Bioelectron 2017; 96:127-139. [PMID: 28478384 DOI: 10.1016/j.bios.2017.04.032] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 04/19/2017] [Accepted: 04/21/2017] [Indexed: 12/25/2022]
Abstract
Metal ion detection is critical in a variety of areas. The past decade has witnessed great progress in the development of metal ion sensors using functional nucleic acids (FNAs) and nanomaterials. The former has good recognition selectivity toward metal ions and the latter possesses unique properties for enhancing the performance of metal ion sensors. This review offers a summary of FNA- and nanomaterial-based metal ion detection methods. FNAs mainly include DNAzymes, G-quadruplexes, and mismatched base pairs and nanomaterials cover gold nanoparticles (GNPs), quantum dots (QDs), carbon nanotubes (CNTs), and graphene oxide (GO). The roles of FNAs and nanomaterials are introduced first. Then, various methods based on the combination of different FNAs and nanomaterials are discussed. Finally, the challenges and future directions of metal ion sensors are presented.
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Affiliation(s)
- Jiahao Huang
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
| | - Xuefen Su
- School of Public Health and Primary Care, Faculty of Medicine, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Zhigang Li
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
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58
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Liang G, Man Y, Li A, Jin X, Liu X, Pan L. DNAzyme-based biosensor for detection of lead ion: A review. Microchem J 2017. [DOI: 10.1016/j.microc.2016.12.010] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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