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Albada HB, Golub E, Willner I. Rational design of supramolecular hemin/G-quadruplex-dopamine aptamer nucleoapzyme systems with superior catalytic performance. Chem Sci 2016; 7:3092-3101. [PMID: 29997801 PMCID: PMC6005209 DOI: 10.1039/c5sc04832j] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 01/23/2016] [Indexed: 11/21/2022] Open
Abstract
The rational design of a set of hemin/G-quadruplex (hGQ)-dopamine binding aptamer (DBA) conjugates, acting as nucleoapzymes, is described. The nucleoapzyme constructs consist of a hGQ DNAzyme as a catalytic unit and DBA as a substrate binding unit that are brought into spatial proximity by a duplex scaffold composed of complementary oligonucleotide strands. When the hGQ unit is linked to the duplex scaffold via a single-strand DNA tether of variable length, the resulting nucleoapzymes reveal a moderate catalytic enhancement toward the H2O2-mediated oxidation of dopamine to aminochrome as compared to the process stimulated by the separated hGQ and DBA units (5-7 fold enhancement). This limited enhancement is attributed to inappropriate spatial positioning of the hGQ in respect to the dopamine binding site, and/or to the flexibility of the tether that links the hGQ catalytic site to the double-stranded scaffold. To solve this, rigidification of the hGQ/DBA conjugates by triplex oligonucleotide structures that anchor the hGQ to a duplex domain associated with the DBA units was achieved. By the sequential, programmed, triplex-controlled rigidification of the hGQ/DBA structure, a nucleoapzyme with superior catalytic activity toward the oxidation of dopamine to aminochrome is identified (30-fold catalytic enhancement). Molecular dynamics simulations reveal that in the resulting highly active rigidified nucleoapzyme structure, the hGQ catalytic site is positioned in spatial proximity to the opening of the DBA substrate binding site, thus rationalizing and supporting the enhanced catalytic functions of the system. Finally, the most active nucleoapzyme system was subjected to fuel- and anti-fuel strands that separate and re-assemble the nucleoapzyme structure, allowing "ON" and "OFF" switching of the nucleoapzyme catalytic functions.
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Affiliation(s)
- H Bauke Albada
- Institute of Chemistry , The Minerva Center for Biohybrid Complex Systems , The Hebrew University of Jerusalem , Jerusalem , 91904 , Israel . ; ; Tel: +972-2-6585272
| | - Eyal Golub
- Institute of Chemistry , The Minerva Center for Biohybrid Complex Systems , The Hebrew University of Jerusalem , Jerusalem , 91904 , Israel . ; ; Tel: +972-2-6585272
| | - Itamar Willner
- Institute of Chemistry , The Minerva Center for Biohybrid Complex Systems , The Hebrew University of Jerusalem , Jerusalem , 91904 , Israel . ; ; Tel: +972-2-6585272
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102
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Tian T, Li J, Song Y, Zhou L, Zhu Z, Yang CJ. Distance-based microfluidic quantitative detection methods for point-of-care testing. LAB ON A CHIP 2016; 16:1139-1151. [PMID: 26928571 DOI: 10.1039/c5lc01562f] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Equipment-free devices with quantitative readout are of great significance to point-of-care testing (POCT), which provides real-time readout to users and is especially important in low-resource settings. Among various equipment-free approaches, distance-based visual quantitative detection methods rely on reading the visual signal length for corresponding target concentrations, thus eliminating the need for sophisticated instruments. The distance-based methods are low-cost, user-friendly and can be integrated into portable analytical devices. Moreover, such methods enable quantitative detection of various targets by the naked eye. In this review, we first introduce the concept and history of distance-based visual quantitative detection methods. Then, we summarize the main methods for translation of molecular signals to distance-based readout and discuss different microfluidic platforms (glass, PDMS, paper and thread) in terms of applications in biomedical diagnostics, food safety monitoring, and environmental analysis. Finally, the potential and future perspectives are discussed.
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Affiliation(s)
- Tian Tian
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
| | - Jiuxing Li
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
| | - Yanling Song
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
| | - Leiji Zhou
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
| | - Zhi Zhu
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
| | - Chaoyong James Yang
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
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103
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Shi Y, Wang H, Jiang X, Sun B, Song B, Su Y, He Y. Ultrasensitive, Specific, Recyclable, and Reproducible Detection of Lead Ions in Real Systems through a Polyadenine-Assisted, Surface-Enhanced Raman Scattering Silicon Chip. Anal Chem 2016; 88:3723-9. [PMID: 26923545 DOI: 10.1021/acs.analchem.5b04551] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
It is of great significance to accurately and reliably detect trace lead(II) (Pb(2+)) ions, preferably at sub-nM level due to the possible long-term accumulation of Pb(2+) in the human body, which may cause serious threats to human health. However, a suitable Pb(2+) sensor meeting the demands is still scanty. Herein, we develop a polyadenine-assisted, surface-enhanced Raman scattering (SERS) silicon chip (0.5 cm × 0.5 cm) composed of core (Ag)-satellite (Au) nanoparticles (Ag-Au NPs)-decorated silicon wafers (Ag-Au NPs@Si) for high-performance Pb(2+) detection. Typically, strong SERS signals could be measured when DNAzyme conjugated on the SERS silicon chip is specifically activated by Pb(2+), cleaving the substrate strand into two free DNA strands. A good linearity exists between the normalized Raman intensities and the logarithmic concentrations of Pb(2+) ranging from 10 pM to 1 μM with a good correlation coefficient, R(2) of 0.997. Remarkably, Pb(2+) ions with a low concentration of 8.9 × 10(-12) M can be readily determined via the SERS silicon chip ascribed to its superior SERS enhancement, much lower than those (∼nM) reported by other SERS sensors. Additionally, the developed chip features good selectivity and recyclability (e.g., ∼11.1% loss of Raman intensity after three cycles). More importantly, the as-prepared chip can be used for accurate and reliable determination of unknown Pb(2+) ions in real systems including lake water, tap water and industrial wastewater, with the RSD value less than 12%.
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Affiliation(s)
- Yu Shi
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, Jiangsu 215123, China
| | - Houyu Wang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, Jiangsu 215123, China
| | - Xiangxu Jiang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, Jiangsu 215123, China
| | - Bin Sun
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, Jiangsu 215123, China
| | - Bin Song
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, Jiangsu 215123, China
| | - Yuanyuan Su
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, Jiangsu 215123, China
| | - Yao He
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, Jiangsu 215123, China
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104
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Payne DT, Fossey JS, Elmes RBP. Catalysis and Sensing for our Environment (CASE2015) and the Supramolecular Chemistry Ireland Meeting (SCI 2015): Dublin and Maynooth, Ireland. 8th–11th July. Supramol Chem 2016. [DOI: 10.1080/10610278.2016.1150595] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Daniel T. Payne
- School of Chemistry, University of Birmingham, Birmingham, UK
| | - John S. Fossey
- School of Chemistry, University of Birmingham, Birmingham, UK
| | - Robert B. P. Elmes
- Department of Chemistry, Maynooth University, National University of Ireland, Maynooth, Ireland
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105
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Li J, Mo L, Lu CH, Fu T, Yang HH, Tan W. Functional nucleic acid-based hydrogels for bioanalytical and biomedical applications. Chem Soc Rev 2016; 45:1410-31. [PMID: 26758955 PMCID: PMC4775362 DOI: 10.1039/c5cs00586h] [Citation(s) in RCA: 352] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hydrogels are crosslinked hydrophilic polymers that can absorb a large amount of water. By their hydrophilic, biocompatible and highly tunable nature, hydrogels can be tailored for applications in bioanalysis and biomedicine. Of particular interest are DNA-based hydrogels owing to the unique features of nucleic acids. Since the discovery of the DNA double helical structure, interest in DNA has expanded beyond its genetic role to applications in nanotechnology and materials science. In particular, DNA-based hydrogels present such remarkable features as stability, flexibility, precise programmability, stimuli-responsive DNA conformations, facile synthesis and modification. Moreover, functional nucleic acids (FNAs) have allowed the construction of hydrogels based on aptamers, DNAzymes, i-motif nanostructures, siRNAs and CpG oligodeoxynucleotides to provide additional molecular recognition, catalytic activities and therapeutic potential, making them key players in biological analysis and biomedical applications. To date, a variety of applications have been demonstrated with FNA-based hydrogels, including biosensing, environmental analysis, controlled drug release, cell adhesion and targeted cancer therapy. In this review, we focus on advances in the development of FNA-based hydrogels, which have fully incorporated both the unique features of FNAs and DNA-based hydrogels. We first introduce different strategies for constructing DNA-based hydrogels. Subsequently, various types of FNAs and the most recent developments of FNA-based hydrogels for bioanalytical and biomedical applications are described with some selected examples. Finally, the review provides an insight into the remaining challenges and future perspectives of FNA-based hydrogels.
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Affiliation(s)
- Juan Li
- The Key Lab of Analysis and Detection Technology for Food Safety of the MOE and Fujian Province, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350002, China. and Molecular Sciences and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering and College of Biology, Collaborative Innovation Center for Molecular Engineering and Theranostics, Hunan University, Changsha 410082, China.
| | - Liuting Mo
- Molecular Sciences and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering and College of Biology, Collaborative Innovation Center for Molecular Engineering and Theranostics, Hunan University, Changsha 410082, China.
| | - Chun-Hua Lu
- The Key Lab of Analysis and Detection Technology for Food Safety of the MOE and Fujian Province, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350002, China.
| | - Ting Fu
- Molecular Sciences and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering and College of Biology, Collaborative Innovation Center for Molecular Engineering and Theranostics, Hunan University, Changsha 410082, China. and Department of Chemistry and Department of Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, UF Health Cancer Center, University of Florida, Gainesville, FL 32611-7200, USA
| | - Huang-Hao Yang
- The Key Lab of Analysis and Detection Technology for Food Safety of the MOE and Fujian Province, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350002, China.
| | - Weihong Tan
- Molecular Sciences and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering and College of Biology, Collaborative Innovation Center for Molecular Engineering and Theranostics, Hunan University, Changsha 410082, China. and Department of Chemistry and Department of Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, UF Health Cancer Center, University of Florida, Gainesville, FL 32611-7200, USA
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106
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Tian T, Wei X, Jia S, Zhang R, Li J, Zhu Z, Zhang H, Ma Y, Lin Z, Yang CJ. Integration of target responsive hydrogel with cascaded enzymatic reactions and microfluidic paper-based analytic devices (µPADs) for point-of-care testing (POCT). Biosens Bioelectron 2016; 77:537-42. [DOI: 10.1016/j.bios.2015.09.049] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Revised: 09/15/2015] [Accepted: 09/23/2015] [Indexed: 01/21/2023]
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107
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Yilmaz E, Ocsoy I, Ozdemir N, Soylak M. Bovine serum albumin-Cu(II) hybrid nanoflowers: An effective adsorbent for solid phase extraction and slurry sampling flame atomic absorption spectrometric analysis of cadmium and lead in water, hair, food and cigarette samples. Anal Chim Acta 2016; 906:110-117. [PMID: 26772130 DOI: 10.1016/j.aca.2015.12.001] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 12/01/2015] [Accepted: 12/12/2015] [Indexed: 01/10/2023]
Abstract
Herein, the synthesis of bovine serum albumin-Cu(II) hybrid nanoflowers (BSA-NFs) through the building blocks of bovine serum albumin (BSA) and copper(II) ions in phosphate buffered saline (PBS) and their use as adsorbent for cadmium and lead ions are reported. The BSA-NFs, for the first time, were efficiently utilized as novel adsorbent for solid phase extraction (SPE) of cadmium and lead ions in water, food, cigarette and hair samples. The method is based on the separation and pre-concentration of Cd(II) and Pb(II) by BSA-NFs prior to determination by slurry analysis via flame atomic absorption spectrometry (FAAS). The analytes were adsorbed on BSA-NFs under the vortex mixing and then the ion-loaded slurry was separated and directly introduced into the flame AAS nebulizer by using a hand-made micro sample introduction system to eliminate a number of drawbacks. The effects of analytical key parameters, such as pH, amount of BSA-NFs, vortexing time, sample volume, and matrix effect of foreign ions on adsorbing of Cd(II) and Pb(II) were systematically investigated and optimized. The limits of detection (LODs) for Cd(II) and Pb(II) were calculated as 0.37 μg L(-)(1) and 8.8 μg L(-)(1), respectively. The relative standard deviation percentages (RSDs) (N = 5) for Cd(II) and Pb(II) were 7.2%, and 5.0%, respectively. The accuracy of the developed procedure was validated by the analysis of certified reference materials (TMDA-53.3 Fortified Water, TMDA-70 Fortified Water, SPS-WW2 Waste Water, NCSDC-73349 Bush Branches and Leaves) and by addition/recovery analysis. The quantitative recoveries were obtained for the analysis of certified reference materials and addition/recovery tests. The method was successfully applied to the analysis of cadmium and lead in water, food, cigarette and hair samples.
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Affiliation(s)
- Erkan Yilmaz
- Department of Chemistry, Faculty of Sciences, Erciyes University, Kayseri 38039, Turkey
| | - Ismail Ocsoy
- Department of Analytical Chemistry, Faculty of Pharmacy, Erciyes University, Kayseri 38039, Turkey; Nanotechnology Research Center (ERNAM), Erciyes University, Kayseri 38039, Turkey
| | - Nalan Ozdemir
- Department of Chemistry, Faculty of Sciences, Erciyes University, Kayseri 38039, Turkey
| | - Mustafa Soylak
- Department of Chemistry, Faculty of Sciences, Erciyes University, Kayseri 38039, Turkey.
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108
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Wei X, Tian T, Jia S, Zhu Z, Ma Y, Sun J, Lin Z, Yang CJ. Microfluidic Distance Readout Sweet Hydrogel Integrated Paper-Based Analytical Device (μDiSH-PAD) for Visual Quantitative Point-of-Care Testing. Anal Chem 2016; 88:2345-52. [DOI: 10.1021/acs.analchem.5b04294] [Citation(s) in RCA: 145] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Xiaofeng Wei
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- MOE Key Laboratory
of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory
of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China
| | - Tian Tian
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Shasha Jia
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhi Zhu
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yanli Ma
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jianjun Sun
- MOE Key Laboratory
of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory
of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China
| | - Zhenyu Lin
- MOE Key Laboratory
of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory
of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China
| | - Chaoyong James Yang
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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109
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Zhang X, Deng J, Xue Y, Shi G, Zhou T. Stimulus Response of Au-NPs@GMP-Tb Core-Shell Nanoparticles: Toward Colorimetric and Fluorescent Dual-Mode Sensing of Alkaline Phosphatase Activity in Algal Blooms of a Freshwater Lake. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:847-855. [PMID: 26677868 DOI: 10.1021/acs.est.5b04600] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this study, we demonstrate a colorimetric and fluorescent dual-mode method for alkaline phosphatase activity (APA) sensing in freshwater lake with stimuli-responsive gold nanoparticles@terbium-guanosine monophosphate (Au-NPs@GMP-Tb) core-shell nanoparticles. Initially, the core-shell nanoparticles were fabricated based on Au-NPs decorated with a fluorescent GMP-Tb shell. Upon being excited at 290 nm, the as-formed Au-NPs@GMP-Tb core-shell nanoparticles emit green fluorescence, and the decorated GMP-Tb shell causes the aggregation of Au-NPs. However, the addition of ALP destroys GMP-Tb shell, resulting in the release of Au-NPs from the shell into the solvent. As a consequence, the aggregated Au-NPs solubilizes with the changes in the UV-vis spectrum of the dispersion, and in the meantime, the fluorescence of GMP-Tb shell turns off, which constitutes a new mechanism for colorimetric and fluorescent dual-mode sensing of APA. With the method developed here, we could monitor the dynamic change of APA during an algal bloom of a freshwater lake, both by the naked eye and further confirmed by fluorometric determination. This study not only offers a new method for on-site visible detection of APA but also provides a strategy for dual-mode sensing mechanisms by the rational design of the excellent optical properties of Au-NPs and the adaptive inclusion properties of the luminescent infinite coordination polymers.
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Affiliation(s)
- Xiaolei Zhang
- School of Ecological and Environmental Sciences and ‡Department of Chemistry, East China Normal University , 500 Dongchuan Road, Shanghai 200241, China
| | - Jingjing Deng
- School of Ecological and Environmental Sciences and ‡Department of Chemistry, East China Normal University , 500 Dongchuan Road, Shanghai 200241, China
| | - Yumeng Xue
- School of Ecological and Environmental Sciences and ‡Department of Chemistry, East China Normal University , 500 Dongchuan Road, Shanghai 200241, China
| | - Guoyue Shi
- School of Ecological and Environmental Sciences and ‡Department of Chemistry, East China Normal University , 500 Dongchuan Road, Shanghai 200241, China
| | - Tianshu Zhou
- School of Ecological and Environmental Sciences and ‡Department of Chemistry, East China Normal University , 500 Dongchuan Road, Shanghai 200241, China
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110
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Zhang W, Zu X, Song Y, Zhu Z, Yang CJ. Detection of DNA methyltransferase activity using allosteric molecular beacons. Analyst 2016; 141:579-84. [DOI: 10.1039/c5an01763g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Abnormal DNA methylation patterns caused by altered DNA methyltransferase (MTase) activity are closely associated with cancer. Herein, using DNA adenine methylation methyltransferase (Dam MTase) as a model analyte, we designed an allosteric molecular beacon (aMB) for sensitive detection of Dam MTase activity.
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Affiliation(s)
- Weiting Zhang
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation
- Collaborative Innovation Center of Chemistry for Energy Materials
- Key Laboratory for Chemical Biology of Fujian Province
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- College of Chemistry and Chemical Engineering
| | - Xiaolong Zu
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation
- Collaborative Innovation Center of Chemistry for Energy Materials
- Key Laboratory for Chemical Biology of Fujian Province
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- College of Chemistry and Chemical Engineering
| | - Yanling Song
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation
- Collaborative Innovation Center of Chemistry for Energy Materials
- Key Laboratory for Chemical Biology of Fujian Province
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- College of Chemistry and Chemical Engineering
| | - Zhi Zhu
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation
- Collaborative Innovation Center of Chemistry for Energy Materials
- Key Laboratory for Chemical Biology of Fujian Province
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- College of Chemistry and Chemical Engineering
| | - Chaoyong James Yang
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation
- Collaborative Innovation Center of Chemistry for Energy Materials
- Key Laboratory for Chemical Biology of Fujian Province
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- College of Chemistry and Chemical Engineering
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111
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Zhao H, Jiang G, Weng J, Ma Q, Zhang H, Ito Y, Liu M. A signal-accumulating DNAzyme-crosslinked hydrogel for colorimetric sensing of hydrogen peroxide. J Mater Chem B 2016; 4:4648-4651. [DOI: 10.1039/c6tb00825a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A signal-accumulating DNAzyme-crosslinked hydrogel is designed and prepared for colorimetric sensing of hydrogen peroxide.
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Affiliation(s)
- Haixu Zhao
- Key Laboratory of Structure-Based Drugs Design & Discovery (Shenyang Pharmaceutical University) of Ministry of Education
- School of Pharmaceutical Engineering
- Shenyang Pharmaceutical University
- Shenyang 110016
- P. R. China
| | - Gangfeng Jiang
- Key Laboratory of Structure-Based Drugs Design & Discovery (Shenyang Pharmaceutical University) of Ministry of Education
- School of Pharmaceutical Engineering
- Shenyang Pharmaceutical University
- Shenyang 110016
- P. R. China
| | - Jinpeng Weng
- Key Laboratory of Structure-Based Drugs Design & Discovery (Shenyang Pharmaceutical University) of Ministry of Education
- School of Pharmaceutical Engineering
- Shenyang Pharmaceutical University
- Shenyang 110016
- P. R. China
| | - Qi Ma
- Key Laboratory of Structure-Based Drugs Design & Discovery (Shenyang Pharmaceutical University) of Ministry of Education
- School of Pharmaceutical Engineering
- Shenyang Pharmaceutical University
- Shenyang 110016
- P. R. China
| | - Hui Zhang
- Key Laboratory of Structure-Based Drugs Design & Discovery (Shenyang Pharmaceutical University) of Ministry of Education
- School of Pharmaceutical Engineering
- Shenyang Pharmaceutical University
- Shenyang 110016
- P. R. China
| | - Yoshihiro Ito
- Nano Medical Engineering Laboratory
- RIKEN
- Saitama
- Japan
- Emergent Bioengineering Materials Research Team
| | - Mingzhe Liu
- Key Laboratory of Structure-Based Drugs Design & Discovery (Shenyang Pharmaceutical University) of Ministry of Education
- School of Pharmaceutical Engineering
- Shenyang Pharmaceutical University
- Shenyang 110016
- P. R. China
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112
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Tan Y, Qiu J, Cui M, Wei X, Zhao M, Qiu B, Chen G. An immobilization free DNAzyme based electrochemical biosensor for lead determination. Analyst 2016; 141:1121-6. [DOI: 10.1039/c5an02114f] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A simple but sensitive immobilization free DNAzyme based electrochemical biosensor has been proposed based on the different diffusivity and electrostatic repulsion between long and short DNA on the negatively charged ITO electrode.
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Affiliation(s)
- Yue Tan
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety
- Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety
- Fuzhou University
- Fuzhou
- China
| | - Jiazhi Qiu
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety
- Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety
- Fuzhou University
- Fuzhou
- China
| | - Meiying Cui
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety
- Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety
- Fuzhou University
- Fuzhou
- China
| | - Xiaofeng Wei
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety
- Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety
- Fuzhou University
- Fuzhou
- China
| | - Mengmeng Zhao
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety
- Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety
- Fuzhou University
- Fuzhou
- China
| | - Bin Qiu
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety
- Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety
- Fuzhou University
- Fuzhou
- China
| | - Guonan Chen
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety
- Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety
- Fuzhou University
- Fuzhou
- China
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113
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Wang Y, Yan M, Xu L, Zhao W, Wang X, Dong S, Hao J. Aptamer-functionalized DNA microgels: a strategy towards selective anticancer therapeutic systems. J Mater Chem B 2016; 4:5446-5454. [DOI: 10.1039/c6tb01224h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
DNA microgels of oligonucleotides and polymers were constructed via a combination of DNA complementarity and photo-initiated free radical polymerization.
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Affiliation(s)
- Yitong Wang
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials
- Shandong University
- Ministry of Education
- Jinan 250100
- P. R. China
| | - Miaomiao Yan
- Department of Pharmacy
- Binzhou Medical College
- Yantai 264003
- P. R. China
| | - Lu Xu
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials
- Shandong University
- Ministry of Education
- Jinan 250100
- P. R. China
| | - Wenrong Zhao
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials
- Shandong University
- Ministry of Education
- Jinan 250100
- P. R. China
| | - Xiaolin Wang
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials
- Shandong University
- Ministry of Education
- Jinan 250100
- P. R. China
| | - Shuli Dong
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials
- Shandong University
- Ministry of Education
- Jinan 250100
- P. R. China
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials
- Shandong University
- Ministry of Education
- Jinan 250100
- P. R. China
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114
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Zhao F, Yao D, Guo R, Deng L, Dong A, Zhang J. Composites of Polymer Hydrogels and Nanoparticulate Systems for Biomedical and Pharmaceutical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2015; 5:2054-2130. [PMID: 28347111 PMCID: PMC5304774 DOI: 10.3390/nano5042054] [Citation(s) in RCA: 198] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 11/18/2015] [Accepted: 11/20/2015] [Indexed: 12/25/2022]
Abstract
Due to their unique structures and properties, three-dimensional hydrogels and nanostructured particles have been widely studied and shown a very high potential for medical, therapeutic and diagnostic applications. However, hydrogels and nanoparticulate systems have respective disadvantages that limit their widespread applications. Recently, the incorporation of nanostructured fillers into hydrogels has been developed as an innovative means for the creation of novel materials with diverse functionality in order to meet new challenges. In this review, the fundamentals of hydrogels and nanoparticles (NPs) were briefly discussed, and then we comprehensively summarized recent advances in the design, synthesis, functionalization and application of nanocomposite hydrogels with enhanced mechanical, biological and physicochemical properties. Moreover, the current challenges and future opportunities for the use of these promising materials in the biomedical sector, especially the nanocomposite hydrogels produced from hydrogels and polymeric NPs, are discussed.
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Affiliation(s)
- Fuli Zhao
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Dan Yao
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Ruiwei Guo
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Liandong Deng
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Anjie Dong
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Jianhua Zhang
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
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115
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Hou L, Wu X, Chen G, Yang H, Lu M, Tang D. HCR-stimulated formation of DNAzyme concatamers on gold nanoparticle for ultrasensitive impedimetric immunoassay. Biosens Bioelectron 2015; 68:487-493. [DOI: 10.1016/j.bios.2015.01.043] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Revised: 01/13/2015] [Accepted: 01/19/2015] [Indexed: 12/16/2022]
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116
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Kuo SY, Li HH, Wu PJ, Chen CP, Huang YC, Chan YH. Dual Colorimetric and Fluorescent Sensor Based On Semiconducting Polymer Dots for Ratiometric Detection of Lead Ions in Living Cells. Anal Chem 2015; 87:4765-71. [DOI: 10.1021/ac504845t] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shih-Yu Kuo
- Department
of Chemistry, National Sun Yat-sen University, 70 Lien Hai Road, Kaohsiung, Taiwan 80424
| | - Hsiang-Hau Li
- Department
of Chemistry, National Sun Yat-sen University, 70 Lien Hai Road, Kaohsiung, Taiwan 80424
| | - Pei-Jing Wu
- Department
of Chemistry, National Sun Yat-sen University, 70 Lien Hai Road, Kaohsiung, Taiwan 80424
| | - Chuan-Pin Chen
- Department
of Chemistry, National Sun Yat-sen University, 70 Lien Hai Road, Kaohsiung, Taiwan 80424
| | - Ya-Chi Huang
- Department
of Chemistry, National Sun Yat-sen University, 70 Lien Hai Road, Kaohsiung, Taiwan 80424
| | - Yang-Hsiang Chan
- Department
of Chemistry, National Sun Yat-sen University, 70 Lien Hai Road, Kaohsiung, Taiwan 80424
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117
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Liu R, Huang Y, Ma Y, Jia S, Gao M, Li J, Zhang H, Xu D, Wu M, Chen Y, Zhu Z, Yang C. Design and synthesis of target-responsive aptamer-cross-linked hydrogel for visual quantitative detection of ochratoxin A. ACS APPLIED MATERIALS & INTERFACES 2015; 7:6982-90. [PMID: 25771715 DOI: 10.1021/acsami.5b01120] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
A target-responsive aptamer-cross-linked hydrogel was designed and synthesized for portable and visual quantitative detection of the toxin Ochratoxin A (OTA), which occurs in food and beverages. The hydrogel network forms by hybridization between one designed DNA strand containing the OTA aptamer and two complementary DNA strands grafting on linear polyacrylamide chains. Upon the introduction of OTA, the aptamer binds with OTA, leading to the dissociation of the hydrogel, followed by release of the preloaded gold nanoparticles (AuNPs), which can be observed by the naked eye. To enable sensitive visual and quantitative detection, we encapsulated Au@Pt core-shell nanoparticles (Au@PtNPs) in the hydrogel to generate quantitative readout in a volumetric bar-chart chip (V-Chip). In the V-Chip, Au@PtNPs catalyzes the oxidation of H2O2 to generate O2, which induces movement of an ink bar to a concentration-dependent distance for visual quantitative readout. Furthermore, to improve the detection limit in complex real samples, we introduced an immunoaffinity column (IAC) of OTA to enrich OTA from beer. After the enrichment, as low as 1.27 nM (0.51 ppb) OTA can be detected by the V-Chip, which satisfies the test requirement (2.0 ppb) by the European Commission. The integration of a target-responsive hydrogel with portable enrichment by IAC, as well as signal amplification and quantitative readout by a simple microfluidic device, offers a new method for portable detection of food safety hazard toxin OTA.
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Affiliation(s)
| | | | | | | | | | | | | | - Dunming Xu
- ‡Xiamen Entry-Exit Inspection and Quarantine Bureau, Xiamen 361026, China
| | - Min Wu
- ‡Xiamen Entry-Exit Inspection and Quarantine Bureau, Xiamen 361026, China
| | - Yan Chen
- ‡Xiamen Entry-Exit Inspection and Quarantine Bureau, Xiamen 361026, China
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118
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Wu R, Zhang S, Lyu J, Lu F, Yue X, Lv J. A visual volumetric hydrogel sensor enables quantitative and sensitive detection of copper ions. Chem Commun (Camb) 2015; 51:8078-81. [DOI: 10.1039/c5cc00744e] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A volumetric sensor design enables the precise naked-eye readout of hydrogel volume changes for quantitative and sensitive detection of copper ions.
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Affiliation(s)
- Rui Wu
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an
- P. R. China
| | - Shenghai Zhang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an
- P. R. China
| | - Jitong Lyu
- College of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Fang Lu
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an
- P. R. China
| | - Xuanfeng Yue
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an
- P. R. China
| | - Jiagen Lv
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an
- P. R. China
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