1
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Wu Y, Gao Z, Chai Y, Zhang A, He S, Liu X, Yuan H, Tan L, Ding L, Wu Y. One-step and label-free ratiometric fluorescence assay for the detection of plasma exosome towards cancer diagnosis. Talanta 2024; 271:125700. [PMID: 38277965 DOI: 10.1016/j.talanta.2024.125700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 01/01/2024] [Accepted: 01/18/2024] [Indexed: 01/28/2024]
Abstract
Exosomes are closely associated with tumor development and are regarded as viable biomarkers for cancer. Here, a ratiometric fluorescence method was proposed for the one-step and label-free detection of plasma exosomes. A bicolor streptavidin magnetic beads were specifically created with an immobilized Cy5-labeled hairpin aptamer for CD63 (Cy5-Apt) on its surface to identify exosome, and a green color SYBR Green I (SGI) embedded in the stem of Cy5-Apt to respond to exosomes. After exosome capture, the Cy5-Apt could undergo a conformational shift and release the encapsulated SGI, allowing exosome measurement based on the fluorescence ratio of Cy5 and SGI. The enrichment, separation and detection of exosomes in proposed method could be completed in one step (30 min), which is a significant improvement over previous method. Furthermore, the use of ratiometric fluorescence and magnetic separation allows for exosome enrichment and interference elimination from complex matrices, improving accuracy and sensitivity. Particularly, the assay could detect exosomes in plasma and has potential to distinguish lung cancer patients from healthy volunteers with an area under the receiver operator characteristic curve of 0.85. Besides, the study provided an efficient method for analyzing the various divisions of exosomes by merely modifying the aptamer, which holds great promise for point-of-care applications.
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Affiliation(s)
- Yan Wu
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Zibo Gao
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China; Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin Province, 130000, China
| | - Yaru Chai
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Aiai Zhang
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Sitian He
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Xia Liu
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Huijie Yuan
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Longlong Tan
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Lihua Ding
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China.
| | - Yongjun Wu
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China.
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2
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Qiao L, Zhao Y, Zhang M, Tao Y, Xiao Y, Zhang N, Zhang Y, Zhu Y. Preparation Strategies, Functional Regulation, and Applications of Multifunctional Nanomaterials-Based DNA Hydrogels. SMALL METHODS 2024; 8:e2301261. [PMID: 38010956 DOI: 10.1002/smtd.202301261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/01/2023] [Indexed: 11/29/2023]
Abstract
With the extensive attention of DNA hydrogels in biomedicine, biomaterial, and other research fields, more and more functional DNA hydrogels have emerged to match the various needs. Incorporating nanomaterials into the hydrogel network is an emerging strategy for functional DNA hydrogel construction. Surprisingly, nanomaterials-based DNA hydrogels can be engineered to possess favorable properties, such as dynamic mechanical properties, excellent optical properties, particular electrical properties, perfect encapsulation properties, improved magnetic properties, and enhanced antibacterial properties. Herein, the preparation strategies of nanomaterials-based DNA hydrogels are first highlighted and then different nanomaterial designs are used to demonstrate the functional regulation of DNA hydrogels to achieve specific properties. Subsequently, representative applications in biosensing, drug delivery, cell culture, and environmental protection are introduced with some selected examples. Finally, the current challenges and prospects are elaborated. The study envisions that this review will provide an insightful perspective for the further development of functional DNA hydrogels.
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Affiliation(s)
- Lu Qiao
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Yue Zhao
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Mingjuan Zhang
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, 232001, China
| | - Yani Tao
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Yao Xiao
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Ni Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Yi Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Yuan Zhu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
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3
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Völlmecke K, Afroz R, Bierbach S, Brenker LJ, Frücht S, Glass A, Giebelhaus R, Hoppe A, Kanemaru K, Lazarek M, Rabbe L, Song L, Velasco Suarez A, Wu S, Serpe M, Kuckling D. Hydrogel-Based Biosensors. Gels 2022; 8:gels8120768. [PMID: 36547292 PMCID: PMC9777866 DOI: 10.3390/gels8120768] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/10/2022] [Accepted: 11/17/2022] [Indexed: 11/29/2022] Open
Abstract
There is an increasing interest in sensing applications for a variety of analytes in aqueous environments, as conventional methods do not work reliably under humid conditions or they require complex equipment with experienced operators. Hydrogel sensors are easy to fabricate, are incredibly sensitive, and have broad dynamic ranges. Experiments on their robustness, reliability, and reusability have indicated the possible long-term applications of these systems in a variety of fields, including disease diagnosis, detection of pharmaceuticals, and in environmental testing. It is possible to produce hydrogels, which, upon sensing a specific analyte, can adsorb it onto their 3D-structure and can therefore be used to remove them from a given environment. High specificity can be obtained by using molecularly imprinted polymers. Typical detection principles involve optical methods including fluorescence and chemiluminescence, and volume changes in colloidal photonic crystals, as well as electrochemical methods. Here, we explore the current research utilizing hydrogel-based sensors in three main areas: (1) biomedical applications, (2) for detecting and quantifying pharmaceuticals of interest, and (3) detecting and quantifying environmental contaminants in aqueous environments.
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Affiliation(s)
- Katharina Völlmecke
- Department of Chemistry, Universität Paderborn, Warburger Straße 100, 33098 Paderborn, Germany
| | - Rowshon Afroz
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, AB T6G 2G2, Canada
| | - Sascha Bierbach
- Department of Chemistry, Universität Paderborn, Warburger Straße 100, 33098 Paderborn, Germany
| | - Lee Josephine Brenker
- Department of Chemistry, Universität Paderborn, Warburger Straße 100, 33098 Paderborn, Germany
| | - Sebastian Frücht
- Department of Chemistry, Universität Paderborn, Warburger Straße 100, 33098 Paderborn, Germany
| | - Alexandra Glass
- Department of Chemistry, Universität Paderborn, Warburger Straße 100, 33098 Paderborn, Germany
| | - Ryland Giebelhaus
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, AB T6G 2G2, Canada
| | - Axel Hoppe
- Department of Chemistry, Universität Paderborn, Warburger Straße 100, 33098 Paderborn, Germany
| | - Karen Kanemaru
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, AB T6G 2G2, Canada
| | - Michal Lazarek
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, AB T6G 2G2, Canada
| | - Lukas Rabbe
- Department of Chemistry, Universität Paderborn, Warburger Straße 100, 33098 Paderborn, Germany
| | - Longfei Song
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, AB T6G 2G2, Canada
| | - Andrea Velasco Suarez
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, AB T6G 2G2, Canada
| | - Shuang Wu
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, AB T6G 2G2, Canada
| | - Michael Serpe
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, AB T6G 2G2, Canada
- Correspondence: (M.S.); (D.K.)
| | - Dirk Kuckling
- Department of Chemistry, Universität Paderborn, Warburger Straße 100, 33098 Paderborn, Germany
- Correspondence: (M.S.); (D.K.)
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4
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Budharaju H, Zennifer A, Sethuraman S, Paul A, Sundaramurthi D. Designer DNA biomolecules as a defined biomaterial for 3D bioprinting applications. MATERIALS HORIZONS 2022; 9:1141-1166. [PMID: 35006214 DOI: 10.1039/d1mh01632f] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
DNA has excellent features such as the presence of functional and targeted molecular recognition motifs, tailorability, multifunctionality, high-precision molecular self-assembly, hydrophilicity, and outstanding biocompatibility. Due to these remarkable features, DNA has emerged as a leading next-generation biomaterial of choice to make hydrogels by self-assembly. In recent times, novel routes for the chemical synthesis of DNA, advances in tailorable designs, and affordable production ways have made DNA as a building block material for various applications. These advanced features have made researchers continuously explore the interesting properties of pure and hybrid DNA for 3D bioprinting and other biomedical applications. This review article highlights the topical advancements in the use of DNA as an ideal bioink for the bioprinting of cell-laden three-dimensional tissue constructs for regenerative medicine applications. Various bioprinting techniques and emerging design approaches such as self-assembly, nucleotide sequence, enzymes, and production cost to use DNA as a bioink for bioprinting applications are described. In addition, various types and properties of DNA hydrogels such as stimuli responsiveness and mechanical properties are discussed. Further, recent progress in the applications of DNA in 3D bioprinting are emphasized. Finally, the current challenges and future perspectives of DNA hydrogels in 3D bioprinting and other biomedical applications are discussed.
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Affiliation(s)
- Harshavardhan Budharaju
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials (CeNTAB), ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401, Tamil Nadu, India.
| | - Allen Zennifer
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials (CeNTAB), ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401, Tamil Nadu, India.
| | - Swaminathan Sethuraman
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials (CeNTAB), ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401, Tamil Nadu, India.
| | - Arghya Paul
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada
- School of Biomedical Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada
- Department of Chemistry, The University of Western Ontario, London, ON N6A 5B9, Canada
| | - Dhakshinamoorthy Sundaramurthi
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials (CeNTAB), ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401, Tamil Nadu, India.
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5
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Chen Y, Zhou M, Yang J, Tan Y, Deng W, Xie Q. Tailoring the Photoelectrochemical Activity of Hexametaphosphate-Capped CdS Quantum Dots by Ca 2+-Triggered Surface Charge Regulation: A New Signaling Strategy for Sensitive Immunoassay. Anal Chem 2021; 93:13783-13790. [PMID: 34606246 DOI: 10.1021/acs.analchem.1c02284] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The development of efficient signaling strategies is highly important for photoelectrochemical (PEC) immunoassay. We report here a new and efficient strategy for sensitive PEC immunoassay by tailoring the electrostatic interaction between the photoactive material and the electron donor. The photoelectric conversion of hexametaphosphate (HMP)-capped CdS quantum dots (QDs) in Na2SO3 solution is significantly boosted after Ca2+ incubation. The negative surface charges on CdS@HMP QDs decrease because of the complexation reaction between HMP and Ca2+, and the electrostatic repulsion between CdS@HMP QDs and electron donor (SO32-) becomes weak accordingly, leading to an improved electron-hole separation efficiency. Inspired by the PEC response of CdS@HMP QDs to Ca2+, a novel "signal-on" PEC immunoassay platform is established by employing CaCO3 nanoparticles as labels. By regulating the surface charge of CdS@HMP QDs with in situ-generated Ca2+ from CaCO3 labels, sensitive detection of the carcinoembryonic antigen (CEA) is achieved. The linear detection range is 0.005-50 ng mL-1 and the detection limit is 1 pg mL-1 for CEA detection. Our work not only provides a facile route to tailor the photoelectric conversion but also lays the foundation for sensitive PEC immunoassay by simply regulating the surface charge of photoactive materials.
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Affiliation(s)
- Yanqun Chen
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Min Zhou
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Jinhua Yang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Yueming Tan
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Wenfang Deng
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Qingji Xie
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
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6
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Du X, Zhai J, Li X, Zhang Y, Li N, Xie X. Hydrogel-Based Optical Ion Sensors: Principles and Challenges for Point-of-Care Testing and Environmental Monitoring. ACS Sens 2021; 6:1990-2001. [PMID: 34044533 DOI: 10.1021/acssensors.1c00756] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Hydrogel is a unique family of biocompatible materials with growing applications in chemical and biological sensors. During the past few decades, various hydrogel-based optical ion sensors have been developed aiming at point-of-care testing and environmental monitoring. In this Perspective, we provide an overview of the research field including topics such as photonic crystals, DNAzyme cross-linked hydrogels, ionophore-based ion sensing hydrogels, and fluoroionophore-based optodes. As the different sensing principles are summarized, each strategy offers its advantages and limitations. In a nutshell, developing optical ion sensing hydrogels is still in the early stage with many opportunities lying ahead, especially with challenges in selectivity, assay time, detection limit, and usability.
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Affiliation(s)
- Xinfeng Du
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Jingying Zhai
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xiaoang Li
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yupu Zhang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Niping Li
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xiaojiang Xie
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
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7
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Pi K, Liu J, Van Cappellen P. Direct Measurement of Aqueous Mercury(II): Combining DNA-Based Sensing with Diffusive Gradients in Thin Films. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:13680-13689. [PMID: 33076660 DOI: 10.1021/acs.est.0c03870] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A highly specific DNA-functionalized hydrogel sensing layer was integrated with the diffusive gradients in thin films (DGT) technique for the direct determination of aqueous mercury(II). The DNA-functionalized layer in the DGT unit exhibited both high affinity (complexation constant Kc = 1019.8 at 25 °C) and high binding capacity (9.5 mg Hg disk-1) toward Hg2+. The diffusion coefficient for Hg2+ complexed with common inorganic ligands was an order of magnitude higher than that for Hg2+ complexed with natural dissolved organic matter: 9.0 × 10-6 versus 9.8 × 10-7 cm2 s-1 at 25 °C. The performance of the DNA-DGT sensor was further assessed under variable pH (3-10) and temperature (5-40 °C) conditions, as well as across a range of hydrochemically diverse artificial and natural freshwaters. The observed effects of the environmental and solution compositional variables on Hg2+ binding to the DNA in the sensing layer were successfully accounted for by equilibrium speciation calculations and temperature-corrected, multicomponent diffusion coefficients for aqueous Hg(II). The results therefore support the use of the DNA-DGT sensor as an alternative to traditional sampling and analysis methods for measuring aqueous Hg(II) concentrations down to the nanomolar level in freshwater environments.
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Affiliation(s)
- Kunfu Pi
- Ecohydrology Research Group, Department of Earth and Environmental Sciences & Water Institute, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Juewen Liu
- Department of Chemistry & Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Philippe Van Cappellen
- Ecohydrology Research Group, Department of Earth and Environmental Sciences & Water Institute, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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8
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Morya V, Walia S, Mandal BB, Ghoroi C, Bhatia D. Functional DNA Based Hydrogels: Development, Properties and Biological Applications. ACS Biomater Sci Eng 2020; 6:6021-6035. [DOI: 10.1021/acsbiomaterials.0c01125] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Vinod Morya
- Biological Engineering Discipline, Indian Institute of Technology Gandhinagar, Palaj, Gujarat 382355, India
| | - Shanka Walia
- Biological Engineering Discipline, Indian Institute of Technology Gandhinagar, Palaj, Gujarat 382355, India
| | - Biman B Mandal
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam India
| | - Chinmay Ghoroi
- Center for Biomedical Engineering, Indian Institute of Technology Gandhinagar, Palaj, Gujarat 382355, India
- Chemical Engineering Discipline, Indian Institute of Technology Gandhinagar, Palaj, Gujarat 382355, India
| | - Dhiraj Bhatia
- Biological Engineering Discipline, Indian Institute of Technology Gandhinagar, Palaj, Gujarat 382355, India
- Center for Biomedical Engineering, Indian Institute of Technology Gandhinagar, Palaj, Gujarat 382355, India
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9
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Jonášová EP, Bjørkøy A, Stokke BT. Toehold Length of Target ssDNA Affects Its Reaction-Diffusion Behavior in DNA-Responsive DNA- co-Acrylamide Hydrogels. Biomacromolecules 2020; 21:1687-1699. [PMID: 31887025 DOI: 10.1021/acs.biomac.9b01515] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In the present study, we expand on the understanding of hydrogels with embedded deoxyribonucleic acid (DNA) cross-links, from the overall swelling to characterization of processes that precede the swelling. The hydrogels respond to target DNA strands because of a toehold-mediated strand displacement reaction in which the target strand binds to and opens the dsDNA cross-link. The spatiotemporal evolution of the diffusing target ssDNA was determined using confocal laser scanning microscopy (CLSM). The concentration profiles revealed diverse partitioning of the target DNA inside the hydrogel as compared with the immersing solution: excluding a nonbinding DNA, while accumulating a binding target. The data show that a longer toehold results in faster cross-link opening but reduced diffusion of the target, thus resulting in only a moderate increase in the overall swelling rate. The parameters obtained by fitting the data using a reaction-diffusion model were discussed in view of the molecular parameters of the target ssDNA and hydrogels.
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Affiliation(s)
- Eleonóra Parelius Jonášová
- Biophysics and Medical Technology, Dept of Physics, NTNU-Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
| | - Astrid Bjørkøy
- Biophysics and Medical Technology, Dept of Physics, NTNU-Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
| | - Bjørn Torger Stokke
- Biophysics and Medical Technology, Dept of Physics, NTNU-Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
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10
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Qu Z, Meng X, Duan H, Qin D, Wang L. Rhodamine-immobilized optical hydrogels with shape deformation and Hg 2+-sensitive fluorescence behaviors. Sci Rep 2020; 10:7723. [PMID: 32382100 PMCID: PMC7205978 DOI: 10.1038/s41598-020-64549-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 04/16/2020] [Indexed: 11/29/2022] Open
Abstract
A highly effective method for the research and development of a novel macroscopic hydrogel sensor and bilayer hydrogel is reported. Based on Rhodamine 6G, an Hg2+ sensitive fluorescent functional monomer was synthesized, then the monomer was utilized to synthesize hydrogel sensors and bilayer hydrogels. Hydrogel sensor has prominent selectivity to Hg2+, the bilayer hydrogel has shape changing function additionally. By combining a thermoresponsive hydrogel layer, poly N-isopropylacrylamide (PNIPAM), with an Hg2+ selective hydrogel layer via macroscopic supramolecular assembly, a bilayer hydrogel is obtained that can be tailored and reswells. The bilayer hydrogel sensor can show complex shape deformation caused by the PNIPAM layer and the Hg2+-responsive characteristic of hydrogel sensor layer can be observed under visible light or UV light. This work will provide novel insights for the design and synthesis of novel smart materials with synergistic functions.
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Affiliation(s)
- Zixiang Qu
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province, 250353, China
| | - Xia Meng
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province, 250353, China
| | - Hongdong Duan
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province, 250353, China.
| | - Dawei Qin
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province, 250353, China
| | - Lizhen Wang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province, 250014, China
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11
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Pi K, Liu J, Van Cappellen P. A DNA-based biosensor for aqueous Hg(II): Performance under variable pH, temperature and competing ligand composition. JOURNAL OF HAZARDOUS MATERIALS 2020; 385:121572. [PMID: 31727526 DOI: 10.1016/j.jhazmat.2019.121572] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 10/04/2019] [Accepted: 10/29/2019] [Indexed: 06/10/2023]
Abstract
Mercury (Hg) is a toxic metal posing major health risks to human beings and wildlife. The characterization of Hg fate and transport in aquatic environments is hindered by a lack of sensitive, selective and easily field-deployable analytical techniques. Here we assess the reliability and performance of a Hg2+ sensor based on the selective binding of Hg2+ to a thymine-rich DNA under environmentally-relevant conditions. Experimental results indicate that the interactions between the DNA and SYBR Green I, which produce the detection fluorescence signal, are significantly impacted by pH, metal ligands and natural dissolved organic matter (NDOM). These interferences are largely eliminated by immobilizing the DNA in a polyacrylamide hydrogel, although high concentrations of NDOM, such as fulvic acids, still affect the sensor's performance due to competitive binding of Hg2+. The binding of Hg2+ to NDOM, however, can be accounted for via equilibrium speciation calculations, which also yield the complexation constant for Hg2+ binding to the DNA in the hydrogel. The equilibrium calculations reproduce the results for the entire set of experimental conditions, from simple electrolyte solutions to complex aqueous compositions mimicking natural lake waters, and across large ranges of pH (3-10) and temperature (5-50 °C).
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Affiliation(s)
- Kunfu Pi
- Ecohydrology Research Group, Department of Earth and Environmental Sciences & Water Institute, University of Waterloo, Waterloo, Ontario, N2L 3G1 Canada.
| | - Juewen Liu
- Department of Chemistry & Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1 Canada
| | - Philippe Van Cappellen
- Ecohydrology Research Group, Department of Earth and Environmental Sciences & Water Institute, University of Waterloo, Waterloo, Ontario, N2L 3G1 Canada.
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12
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Parelius Jonášová E, Stokke BT. Morpholino Target Molecular Properties Affect the Swelling Process of Oligomorpholino-Functionalized Responsive Hydrogels. Polymers (Basel) 2020; 12:E268. [PMID: 31991917 PMCID: PMC7077381 DOI: 10.3390/polym12020268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 01/13/2020] [Accepted: 01/18/2020] [Indexed: 01/06/2023] Open
Abstract
Responsive hydrogels featuring DNA as a functional unit are attracting increasing interest due to combination of versatility and numerous applications. The possibility to use nucleic acid analogues opens for further customization of the hydrogels. In the present work, the commonly employed DNA oligonucleotides in DNA-co-acrylamide responsive hydrogels are replaced by Morpholino oligonucleotides. The uncharged backbone of this nucleic acid analogue makes it less susceptible to possible enzymatic degradation. In this work we address fundamental issues related to key processes in the hydrogel response; such as partitioning of the free oligonucleotides and the strand displacement process. The hydrogels were prepared at the end of optical fibers for interferometric size monitoring and imaged using confocal laser scanning microscopy of the fluorescently labeled free oligonucleotides to observe their apparent diffusion and accumulation within the hydrogels. Morpholino-based hydrogels' response to Morpholino targets was compared to DNA hydrogels' response to DNA targets of the same base-pair sequence. Non-binding targets were observed to be less depleted in Morpholino hydrogels than in DNA hydrogels, due to their electroneutrality, resulting in faster kinetics for Morpholinos. The electroneutrality, however, also led to the total swelling response of the Morpholino hydrogels being smaller than that of DNA, since their lack of charges eliminates swelling resulting from the influx of counter-ions upon oligonucleotide binding. We have shown that employing nucleic acid analogues instead of DNA in hydrogels has a profound effect on the hydrogel response.
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Affiliation(s)
| | - Bjørn Torger Stokke
- Biophysics and Medical Technology, Department of Physics, NTNU—Norwegian University of Science and Technology, NO-7491 Trondheim, Norway;
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Li F, Lyu D, Liu S, Guo W. DNA Hydrogels and Microgels for Biosensing and Biomedical Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1806538. [PMID: 31379017 DOI: 10.1002/adma.201806538] [Citation(s) in RCA: 133] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 06/28/2019] [Indexed: 06/10/2023]
Abstract
DNA hydrogels, which take advantage of the unique properties of functional DNA motifs, such as specific molecular recognition, programmable and high-precision assembly, multifunctionality, and excellent biocompatibility, have attracted increasing research interest in the past two decades in diverse fields, especially in biosensing and biomedical applications. The responsiveness of smart DNA hydrogels to external stimuli by changing their swelling volume, crosslinking density, and optical or mechanical properties has facilitated the development of DNA-hydrogel-based in vitro biosensing systems and actuators. Furthermore, reducing the sizes of DNA hydrogels to the micro- and nanoscale leads to better responsiveness and delivery capacity, thereby making them excellent candidates for rapid detection, in vivo real-time sensing, and drug release applications. Here, the recent progress in the development of smart DNA hydrogels and DNA microgels for biosensing and biomedical applications is summarized, and the current challenges as well as future prospects are also discussed.
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Affiliation(s)
- Fengyun Li
- College of Chemistry, Research Centre for Analytical Sciences, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Nankai University, 94 Weijin Road, Tianjin, 300071, P. R. China
| | - Danya Lyu
- College of Chemistry, Research Centre for Analytical Sciences, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Nankai University, 94 Weijin Road, Tianjin, 300071, P. R. China
| | - Shuo Liu
- College of Chemistry, Research Centre for Analytical Sciences, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Nankai University, 94 Weijin Road, Tianjin, 300071, P. R. China
| | - Weiwei Guo
- College of Chemistry, Research Centre for Analytical Sciences, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Nankai University, 94 Weijin Road, Tianjin, 300071, P. R. China
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15
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Li Y, Zhang Z, Liu B, Liu J. Adsorption of DNA Oligonucleotides by Boronic Acid-Functionalized Hydrogel Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:13727-13734. [PMID: 31560208 DOI: 10.1021/acs.langmuir.9b01622] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Boronic acid-functionalized hydrogels were commonly used for covalent binding of cis-diol-contained molecules such as glucose, but noncovalent adsorption by boronic acids was less studied. DNA as an important polymer has been used to enhance the function of hydrogels including boronic acid-containing gels. In this work, noncovalent interactions between DNA oligonucleotides and boronic acid-containing hydrogel nanoparticles were studied in detail. The gels were composed of either poly(N-isopropylacrylamide) or with additional 5.6 mol % of 3-acrylamidophenylboronic acid (AAPBA). DNA adsorption on the AAPBA-containing gels was achieved with a high salt concentration, which can be explained by electrostatic repulsion between DNA and boronic acid. The critical role of boronic acid was confirmed by adding competing cis-diol-containing molecules such as glucose, fructose, and cytidine. Hydrogen bonding and hydrophobic interactions are important for DNA adsorption based on inhibited adsorption by urea and dimethyl sulfoxide. Polycytosine DNA showed a higher adsorption capacity compared to the other three types of DNA homopolymers. When T15 and T14-rU were compared, no covalent binding was detected for T14-rU, suggesting that a single terminal diol was insufficient to support covalent binding at the low concentration of DNA used. Finally, the boronic acid-containing gels were able to adsorb an aptamer and inhibit its binding function. Binding was rescued by adding glucose to block the boronic acids. This study demonstrates noncovalent boronic acid interactions with DNA, and this information could be useful for designing and optimization of related biosensors and materials.
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Affiliation(s)
- Yuqing Li
- Department of Chemistry, Waterloo Institute for Nanotechnology , University of Waterloo , 200 University Ave. West , Waterloo , Ontario N2L 3G1 , Canada
| | - Zijie Zhang
- Department of Chemistry, Waterloo Institute for Nanotechnology , University of Waterloo , 200 University Ave. West , Waterloo , Ontario N2L 3G1 , Canada
| | - Biwu Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology , University of Waterloo , 200 University Ave. West , Waterloo , Ontario N2L 3G1 , Canada
| | - Juewen Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology , University of Waterloo , 200 University Ave. West , Waterloo , Ontario N2L 3G1 , Canada
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Li Z, Wulf V, Wang C, Vázquez-González M, Fadeev M, Zhang J, Tian H, Willner I. Molecularly Imprinted Sites Translate into Macroscopic Shape-Memory Properties of Hydrogels. ACS APPLIED MATERIALS & INTERFACES 2019; 11:34282-34291. [PMID: 31429543 DOI: 10.1021/acsami.9b06598] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The polymerization of acrylamide, dopamine methacrylamide, and bis-acrylamide in the presence of one of the electron acceptors, N,N'-dimethyl-4,4'-bipyridinium, (1), N,N'-dimethylbipyridinium-4,4'-ethylene, (2), or bipyridinium dithienylethene, (3), yields hydrogel matrices of high stiffness that are cooperatively cross-linked by bis-acrylamide and electron donor (dopamine)-acceptor complexes. Washing off the diffusional electron acceptor units yields molecularly imprinted matrices of lower stiffness, stabilized only by the bis-acrylamide bridges that include specific binding sites for the selective association of the electron acceptor (1), (2), or (3). These imprinted hydrogel matrices show selective recovery of the stiff properties upon binding the respective electron acceptor units to the imprinted sites. The control over the stiffness properties enables the development of shape-memory, molecularly imprinted hydrogels and stiffness-based sensors. The results show how molecularly imprinted sites translate into macroscopic shape-memory properties of hydrogels.
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Affiliation(s)
- Ziyuan Li
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
| | - Verena Wulf
- Institute of Chemistry , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel
| | - Chen Wang
- Institute of Chemistry , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel
| | | | - Michael Fadeev
- Institute of Chemistry , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel
| | - Junji Zhang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
| | - He Tian
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
| | - Itamar Willner
- Institute of Chemistry , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel
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LSPR based optical fiber sensor with chitosan capped gold nanoparticles on BSA for trace detection of Hg (II) in water, soil and food samples. Biosens Bioelectron 2019; 134:90-96. [DOI: 10.1016/j.bios.2019.03.046] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 03/13/2019] [Accepted: 03/21/2019] [Indexed: 12/11/2022]
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18
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Wang C, Liu X, Wulf V, Vázquez-González M, Fadeev M, Willner I. DNA-Based Hydrogels Loaded with Au Nanoparticles or Au Nanorods: Thermoresponsive Plasmonic Matrices for Shape-Memory, Self-Healing, Controlled Release, and Mechanical Applications. ACS NANO 2019; 13:3424-3433. [PMID: 30822379 DOI: 10.1021/acsnano.8b09470] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Gold nanoparticles (AuNPs) or gold nanorods (AuNRs) are loaded in polyacrylamide hydrogels cooperatively cross-linked by bis-acrylamide and nucleic acid duplexes or boronate ester-glucosamine and nucleic acid duplexes. The thermoplasmonic properties of AuNPs and AuNRs are used to control the stiffness of the hydrogels. The irradiation of the AuNP-loaded (λ = 532 nm) or the AuNR-loaded (λ = 808 nm) hydrogels leads to thermoplasmonic heating of the hydrogels, the dehybridization of the DNA duplexes, and the formation of hydrogels with lower stiffness. By ON/OFF irradiation, the hydrogels are switched between low- and high-stiffness states. The reversible control over the stiffness properties of the hydrogels is used to develop shape-memory hydrogels and self-healing soft materials and to tailor thermoplasmonic switchable drug release. In addition, by designing bilayer composites of AuNP- and AuNR-loaded hydrogels, a reversible thermoplasmonic, light-induced bending is demonstrated, where the bending direction is controlled by the stress generated in the respective bilayer composite.
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Affiliation(s)
- Chen Wang
- Institute of Chemistry, Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel
| | - Xia Liu
- Institute of Chemistry, Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel
| | - Verena Wulf
- Institute of Chemistry, Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel
| | - Margarita Vázquez-González
- Institute of Chemistry, Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel
| | - Michael Fadeev
- Institute of Chemistry, Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel
| | - Itamar Willner
- Institute of Chemistry, Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel
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Yan PJ, He F, Wang W, Zhang SY, Zhang L, Li M, Liu Z, Ju XJ, Xie R, Chu LY. Novel Membrane Detector Based on Smart Nanogels for Ultrasensitive Detection of Trace Threat Substances. ACS APPLIED MATERIALS & INTERFACES 2018; 10:36425-36434. [PMID: 30261137 DOI: 10.1021/acsami.8b12615] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
A novel membrane detector is developed by a facile strategy combining commercialized membrane and smart nanogels for ultrasensitive and highly selective real-time detection of trace threat substances. On the basis of nanogel filtration and polydopamine adhesion, the membrane detector is fabricated by simply immobilizing smart nanogels onto the multiple pores of a commercialized membrane as the nanosensors and nanovalves. This is demonstrated by incorporating Pb2+-responsive poly( N-isopropylacrylamide- co-acryloylamidobenzo-18-crown-6) nanogels in the straight pores of a commercialized polycarbonate membrane for ultrasensitive and highly selective real-time detection of trace Pb2+. When selectively recognizing the Pb2+ in solution, the smart nanogels in the membrane pores swell, which lead to trans-membrane flux change. Quantitative detection of Pb2+ concentration can be achieved by simply measuring the flow rate of the trans-membrane flow. Due to the multiple nanochannels of nanogel-immobilized pores in the membrane for Pb2+ sensing and flux regulating, ultrasensitive and highly selective real-time detection of trace Pb2+ with concentration as low as 10-10 mol L-1 can be achieved. The nanogel-immobilized membrane detector offers a flexible platform to create versatile new membrane detectors by incorporating diverse smart nanogels for ultrasensitive and highly selective real-time detection of different trace threat substances.
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20
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Zhang Y, Chu G, Guo Y, Zhao W, Yang Q, Sun X. An electrochemical biosensor based on Au nanoparticles decorated reduced graphene oxide for sensitively detecting of Hg2+. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.07.053] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Wang Y, Zhu Y, Hu Y, Zeng G, Zhang Y, Zhang C, Feng C. How to Construct DNA Hydrogels for Environmental Applications: Advanced Water Treatment and Environmental Analysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1703305. [PMID: 29450972 DOI: 10.1002/smll.201703305] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Revised: 11/23/2017] [Indexed: 06/08/2023]
Abstract
With high binding affinity, porous structures, safety, green, programmability, etc., DNA hydrogels have gained increasing recognition in the environmental field, i.e., advanced treatment technology of water and analysis of specific pollutants. DNA hydrogels have been demonstrated as versatile potential adsorbents, immobilization carriers of bioactive molecules, catalysts, sensors, etc. Moreover, altering components or choosing appropriate functional DNA optimizes environment-oriented hydrogels. However, the lack of comprehensive information hinders the continued optimization. The principle used to fabricate the most suitable hydrogels in terms of the requirements is the focus of this Review. First, different fabrication strategies are introduced and the ideal characteristic for environmental applications is in focus. Subsequently, recent environmental applications and the development of diverse DNA hydrogels regarding their synthesis mechanism are summarized. Finally, the Review provides an insight into the remaining challenging and future perspectives in environmental applications.
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Affiliation(s)
- Yingrong Wang
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Changsha, 410082, P. R. China
| | - Yuan Zhu
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Changsha, 410082, P. R. China
| | - Yi Hu
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Changsha, 410082, P. R. China
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Changsha, 410082, P. R. China
| | - Yi Zhang
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Changsha, 410082, P. R. China
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Chang Zhang
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Changsha, 410082, P. R. China
| | - Chongling Feng
- Research Center of Environmental Science and Engineering, Center South University of Forestry and Technology, Shaoshan South Road, Changsha, 410004, China
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22
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Uzumcu AT, Guney O, Okay O. Highly Stretchable DNA/Clay Hydrogels with Self-Healing Ability. ACS APPLIED MATERIALS & INTERFACES 2018; 10:8296-8306. [PMID: 29441777 DOI: 10.1021/acsami.8b00168] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We present mechanically strong and self-healable clay hydrogels containing 2-8 w/v % ds-DNA together with a synthetic biocompatible polymer, poly( N, N-dimethylacrylamide). Clay nanoparticles in the hydrogels act like a chemical cross-linker and promote their elastic behavior, whereas DNA contributes to their viscoelastic energy dissipation. The extent of mechanical hysteresis during cyclic tensile tests reveals that the strength of intermolecular bonds in DNA/clay hydrogels is in the range of the strength of hydrogen bonds. The hydrogels exhibit a high stretchability (up to 1500%) and a tensile strength between 20 and 150 kPa. They have the ability to self-heal, which is induced by heating the damaged gel samples above the melting temperature of ds-DNA. When comparing the mechanical properties of the hydrogels before and after healing, the healing efficiency is greater than 100%. We also demonstrate that ds-DNA molecules entrapped in the gel network undergoes thermal denaturation/renaturation cycles, leading to a further improvement in the mechanical properties of the hydrogels.
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Affiliation(s)
- Ahmet T Uzumcu
- Departments of Chemistry and Polymer Science & Technology , Istanbul Technical University , Maslak, 34469 Istanbul , Turkey
| | - Orhan Guney
- Departments of Chemistry and Polymer Science & Technology , Istanbul Technical University , Maslak, 34469 Istanbul , Turkey
| | - Oguz Okay
- Departments of Chemistry and Polymer Science & Technology , Istanbul Technical University , Maslak, 34469 Istanbul , Turkey
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Fadeev M, Davidson-Rozenfeld G, Biniuri Y, Yakobi R, Cazelles R, Aleman-Garcia MA, Willner I. Redox-triggered hydrogels revealing switchable stiffness properties and shape-memory functions. Polym Chem 2018. [DOI: 10.1039/c8py00515j] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Metal-ion terpyridine-crosslinked acrylamide hydrogels or metal-ion-bridged carboxymethylcellulose hydrogels reveal redox-switchable stiffness and shape-memory properties.
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Affiliation(s)
- Michael Fadeev
- Institute of Chemistry
- The Minerva Center for Biohybrid Complex Systems
- The Hebrew University of Jerusalem
- Jerusalem 91904
- Israel
| | - Gilad Davidson-Rozenfeld
- Institute of Chemistry
- The Minerva Center for Biohybrid Complex Systems
- The Hebrew University of Jerusalem
- Jerusalem 91904
- Israel
| | - Yonatan Biniuri
- Institute of Chemistry
- The Minerva Center for Biohybrid Complex Systems
- The Hebrew University of Jerusalem
- Jerusalem 91904
- Israel
| | - Ravit Yakobi
- Institute of Chemistry
- The Minerva Center for Biohybrid Complex Systems
- The Hebrew University of Jerusalem
- Jerusalem 91904
- Israel
| | - Rémi Cazelles
- Institute of Chemistry
- The Minerva Center for Biohybrid Complex Systems
- The Hebrew University of Jerusalem
- Jerusalem 91904
- Israel
| | - Miguel Angel Aleman-Garcia
- Institute of Chemistry
- The Minerva Center for Biohybrid Complex Systems
- The Hebrew University of Jerusalem
- Jerusalem 91904
- Israel
| | - Itamar Willner
- Institute of Chemistry
- The Minerva Center for Biohybrid Complex Systems
- The Hebrew University of Jerusalem
- Jerusalem 91904
- Israel
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Affiliation(s)
- Wenhu Zhou
- Xiangya
School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, China
- Department
of Chemistry, Water Institute, and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Runjhun Saran
- Department
of Chemistry, Water Institute, and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Juewen Liu
- Department
of Chemistry, Water Institute, and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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25
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Kahn JS, Hu Y, Willner I. Stimuli-Responsive DNA-Based Hydrogels: From Basic Principles to Applications. Acc Chem Res 2017; 50:680-690. [PMID: 28248486 DOI: 10.1021/acs.accounts.6b00542] [Citation(s) in RCA: 264] [Impact Index Per Article: 37.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The base sequence of nucleic acids encodes structural and functional information into the DNA biopolymer. External stimuli such as metal ions, pH, light, or added nucleic acid fuel strands provide triggers to reversibly switch nucleic acid structures such as metal-ion-bridged duplexes, i-motifs, triplex nucleic acids, G-quadruplexes, or programmed double-stranded hybrids of oligonucleotides (DNA). The signal-triggered oligonucleotide structures have been broadly applied to develop switchable DNA nanostructures and DNA machines, and these stimuli-responsive assemblies provide functional scaffolds for the rapidly developing area of DNA nanotechnology. Stimuli-responsive hydrogels undergoing signal-triggered hydrogel-to-solution transitions or signal-controlled stiffness changes attract substantial interest as functional matrices for controlled drug delivery, materials exhibiting switchable mechanical properties, acting as valves or actuators, and "smart" materials for sensing and information processing. The integration of stimuli-responsive oligonucleotides with hydrogel-forming polymers provides versatile means to exploit the functional information encoded in the nucleic acid sequences to yield stimuli-responsive hydrogels exhibiting switchable physical, structural, and chemical properties. Stimuli-responsive DNA-based nucleic acid structures are integrated in acrylamide polymer chains and reversible, switchable hydrogel-to-solution transitions of the systems are demonstrated by applying external triggers, such as metal ions, pH-responsive strands, G-quadruplex, and appropriate counter triggers that bridge and dissociate the polymer chains. By combining stimuli-responsive nucleic acid bridges with thermosensitive poly(N-isopropylacrylamide) (pNIPAM) chains, systems undergoing reversible solution ↔ hydrogel ↔ solid transitions are demonstrated. Specifically, by bridging acrylamide polymer chains by two nucleic acid functionalities, where one type of bridging unit provides a stimuli-responsive element and the second unit acts as internal "bridging memory", shape-memory hydrogels undergoing reversible and switchable transitions between shaped hydrogels and shapeless quasi-liquid states are demonstrated. By using stimuli-responsive hydrogel cross-linking units that can assemble the bridging units by two different input signals, the orthogonally-triggered functions of the shape-memory were shown. Furthermore, a versatile approach to assemble stimuli-responsive DNA-based acrylamide hydrogel films on surfaces is presented. The method involves the activation of the hybridization chain-reaction (HCR) by a surface-confined promoter strand, in the presence of acrylamide chains modified with two DNA hairpin structures and appropriate stimuli-responsive tethers. The resulting hydrogel-modified surfaces revealed switchable stiffness properties and signal-triggered catalytic functions. By applying the method to assemble the hydrogel microparticles, substrate-loaded, stimuli-responsive microcapsules are prepared. The signal-triggered DNA-based hydrogel microcapsules are applied as drug carriers for controlled release. The different potential applications and future perspectives of stimuli responsive hydrogels are discussed. Specifically, the use of these smart materials and assemblies as carriers for controlled drug release and as shape-memory matrices for information storage and inscription and the use of surface-confined stimuli-responsive hydrogels, exhibiting switchable stiffness properties, for catalysis and controlled growth of cells are discussed.
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Affiliation(s)
- Jason S. Kahn
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Yuwei Hu
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Itamar Willner
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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26
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Zhang Z, Zhang X, Liu B, Liu J. Molecular Imprinting on Inorganic Nanozymes for Hundred-fold Enzyme Specificity. J Am Chem Soc 2017; 139:5412-5419. [DOI: 10.1021/jacs.7b00601] [Citation(s) in RCA: 404] [Impact Index Per Article: 57.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Zijie Zhang
- Department of Chemistry,
Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Xiaohan Zhang
- Department of Chemistry,
Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Biwu Liu
- Department of Chemistry,
Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Juewen Liu
- Department of Chemistry,
Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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27
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28
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Liao WC, Riutin M, Parak WJ, Willner I. Programmed pH-Responsive Microcapsules for the Controlled Release of CdSe/ZnS Quantum Dots. ACS NANO 2016; 10:8683-8689. [PMID: 27526081 DOI: 10.1021/acsnano.6b04056] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Two methods for the preparation of pH-responsive all-DNA microcapsules loaded with CdSe/ZnS quantum dots (QDs) are discussed. One approach involves the construction of DNA microcapsules composed of nucleic acid layers that include, at pH 7.2, "dormant" C-G·C(+) triplex sequences. The formation of the C-G·C(+) triplex structures at pH 5.0 leads to the cleavage of the microcapsules and to the release of the QDs. A second approach involves the synthesis of CdSe/ZnS QD-loaded DNA microcapsules, stabilized at pH 7.2 by T-A·T interlayer triplex bridges. The dissociation of the bridges at pH 9.0 separates the bridging triplex units, resulting in the degradation of the microcapsules and to the release of the QDs. The programmed pH-stimulated release of luminescent QDs, emitting at 620 and 560 nm, from the C-G·C(+) or T-A·T triplex-responsive microcapsules is demonstrated by subjecting the QD-loaded microcapsule mixtures to pH 5.0 or pH 9.0, respectively.
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Affiliation(s)
- Wei-Ching Liao
- Institute of Chemistry, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Marianna Riutin
- Institute of Chemistry, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Wolfgang J Parak
- Fachbereich Physik, Philipps-Universität Marburg , Renthof 7, 35037 Marburg, Germany
| | - Itamar Willner
- Institute of Chemistry, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
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29
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Yu X, Hu Y, Kahn JS, Cecconello A, Willner I. Orthogonal Dual-Triggered Shape-Memory DNA-Based Hydrogels. Chemistry 2016; 22:14504-7. [DOI: 10.1002/chem.201603653] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Indexed: 01/12/2023]
Affiliation(s)
- Xu Yu
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology; The Hebrew University of Jerusalem; Jerusalem 91904 Israel
| | - Yuwei Hu
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology; The Hebrew University of Jerusalem; Jerusalem 91904 Israel
| | - Jason S. Kahn
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology; The Hebrew University of Jerusalem; Jerusalem 91904 Israel
| | - Alessandro Cecconello
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology; The Hebrew University of Jerusalem; Jerusalem 91904 Israel
| | - Itamar Willner
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology; The Hebrew University of Jerusalem; Jerusalem 91904 Israel
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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: 351] [Impact Index Per Article: 43.9] [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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Hu Y, Guo W, Kahn JS, Aleman-Garcia MA, Willner I. A Shape-Memory DNA-Based Hydrogel Exhibiting Two Internal Memories. Angew Chem Int Ed Engl 2016; 55:4210-4. [DOI: 10.1002/anie.201511201] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 01/11/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Yuwei Hu
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology; The Hebrew University of Jerusalem; Jerusalem 91904 Israel
| | - Weiwei Guo
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology; The Hebrew University of Jerusalem; Jerusalem 91904 Israel
| | - Jason S. Kahn
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology; The Hebrew University of Jerusalem; Jerusalem 91904 Israel
| | - Miguel Angel Aleman-Garcia
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology; The Hebrew University of Jerusalem; Jerusalem 91904 Israel
| | - Itamar Willner
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology; The Hebrew University of Jerusalem; Jerusalem 91904 Israel
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Hu Y, Guo W, Kahn JS, Aleman-Garcia MA, Willner I. A Shape-Memory DNA-Based Hydrogel Exhibiting Two Internal Memories. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201511201] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yuwei Hu
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology; The Hebrew University of Jerusalem; Jerusalem 91904 Israel
| | - Weiwei Guo
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology; The Hebrew University of Jerusalem; Jerusalem 91904 Israel
| | - Jason S. Kahn
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology; The Hebrew University of Jerusalem; Jerusalem 91904 Israel
| | - Miguel Angel Aleman-Garcia
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology; The Hebrew University of Jerusalem; Jerusalem 91904 Israel
| | - Itamar Willner
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology; The Hebrew University of Jerusalem; Jerusalem 91904 Israel
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33
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Anion-intercalated layered double hydroxides modified test strips for detection of heavy metal ions. Talanta 2016; 148:301-7. [DOI: 10.1016/j.talanta.2015.11.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 10/30/2015] [Accepted: 11/03/2015] [Indexed: 01/08/2023]
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Zhou L, Sun N, Xu L, Chen X, Cheng H, Wang J, Pei R. Dual signal amplification by an “on-command” pure DNA hydrogel encapsulating HRP for colorimetric detection of ochratoxin A. RSC Adv 2016. [DOI: 10.1039/c6ra23462c] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A pure DNA hydrogel, consisting of two kinds of Y-scaffold nucleic acid subunits and the aptamer domain of ochratoxin A, undergoes a switchable gel-to-sol transition in the presence of ochratoxin A.
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Affiliation(s)
- Lu Zhou
- Key Laboratory of Nano-Bio Interface
- Division of Nanobiomedicine
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou
| | - Na Sun
- Key Laboratory of Nano-Bio Interface
- Division of Nanobiomedicine
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou
| | - Lijun Xu
- Key Laboratory of Nano-Bio Interface
- Division of Nanobiomedicine
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou
| | - Xing Chen
- Key Laboratory of Nano-Bio Interface
- Division of Nanobiomedicine
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou
| | - Hui Cheng
- Key Laboratory of Nano-Bio Interface
- Division of Nanobiomedicine
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou
| | - Jine Wang
- Key Laboratory of Nano-Bio Interface
- Division of Nanobiomedicine
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou
| | - Renjun Pei
- Key Laboratory of Nano-Bio Interface
- Division of Nanobiomedicine
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou
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Lu CH, Guo W, Hu Y, Qi XJ, Willner I. Multitriggered Shape-Memory Acrylamide-DNA Hydrogels. J Am Chem Soc 2015; 137:15723-31. [PMID: 26579882 DOI: 10.1021/jacs.5b06510] [Citation(s) in RCA: 135] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Acrylamide-acrylamide nucleic acids are cross-linked by two cooperative functional motives to form shaped acrylamide-DNA hydrogels. One of the cross-linking motives responds to an external trigger, leading to the dissociation of one of the stimuli-responsive bridges, and to the transition of the stiff shaped hydrogels into soft shapeless states, where the residual bridging units, due to the chains entanglement, provide an intrinsic memory for the reshaping of the hydrogels. Subjecting the shapeless states to counter stimuli restores the dissociated bridges, and regenerates the original shape of the hydrogels. By the cyclic dissociation and reassembly of the stimuli-responsive bridges, the reversible switchable transitions of the hydrogels between stiff shaped hydrogel structures and soft shapeless states are demonstrated. Shaped hydrogels bridged by K(+)-stabilized G-quadruplexes/duplex units, by i-motif/duplex units, or by two different duplex bridges are described. The cyclic transitions of the hydrogels between shaped and shapeless states are stimulated, in the presence of appropriate triggers and counter triggers (K(+) ion/crown ether; pH = 5.0/8.0; fuel/antifuel strands). The shape-memory hydrogels are integrated into shaped two-hydrogel or three-hydrogel hybrid structures. The cyclic programmed transitions of selective domains of the hybrid structures between shaped hydrogel and shapeless states are demonstrated. The possible applications of the shape-memory hydrogels for sensing, inscription of information, and controlled release of loads are discussed.
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Affiliation(s)
- Chun-Hua Lu
- The Institute of Chemistry, The Minerva Center for Biohybrid Complex Systems, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Weiwei Guo
- The Institute of Chemistry, The Minerva Center for Biohybrid Complex Systems, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Yuwei Hu
- The Institute of Chemistry, The Minerva Center for Biohybrid Complex Systems, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Xiu-Juan Qi
- The Institute of Chemistry, The Minerva Center for Biohybrid Complex Systems, The Hebrew University of Jerusalem , Jerusalem 91904, Israel.,The Key Laboratory of Analysis and Detection Technology for Food Safety of the MOE, College of Chemistry, Fuzhou University , Fuzhou 350002, China
| | - Itamar Willner
- The Institute of Chemistry, The Minerva Center for Biohybrid Complex Systems, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
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36
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Kahn JS, Trifonov A, Cecconello A, Guo W, Fan C, Willner I. Integration of Switchable DNA-Based Hydrogels with Surfaces by the Hybridization Chain Reaction. NANO LETTERS 2015; 15:7773-7778. [PMID: 26488684 DOI: 10.1021/acs.nanolett.5b04101] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A novel method to assemble acrylamide/acrydite DNA copolymer hydrogels on surfaces, specifically gold-coated surfaces, is introduced. The method involves the synthesis of two different copolymer chains consisting of hairpin A, HA, modified acrylamide copolymer and hairpin B, HB, acrylamide copolymer. In the presence of a nucleic acid promoter monolayer associated with the surface, the hybridization chain reaction between the two hairpin-modified polymer chains is initiated, giving rise to the cross-opening of hairpins HA and HB and the formation of a cross-linked hydrogel on the surface. By the cofunctionalization of the HA- and HB-modified polymer chains with G-rich DNA tethers that include the G-quadruplex subunits, hydrogels of switchable stiffness are generated. In the presence of K(+)-ions, the hydrogel associated with the surface is cooperatively cross-linked by duplex units of HA and HB, and K(+)-ion-stabilized G-quadruplex units, giving rise to a stiff hydrogel. The 18-crown-6-ether-stimulated elimination of the K(+)-ions dissociates the bridging G-quadruplex units, resulting in a hydrogel of reduced stiffness. The duplex/G-quadruplex cooperatively stabilized hydrogel associated with the surface reveals switchable electrocatalytic properties. The incorporation of hemin into the G-quadruplex units electrocatalyzes the reduction of H2O2. The 18-crown-6-ether stimulated dissociation of the hemin/G-quadruplex bridging units leads to a catalytically inactive hydrogel.
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Affiliation(s)
- Jason S Kahn
- Institute of Chemistry, The Minerva Center for Complex Biohybrid Systems, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Alexander Trifonov
- Institute of Chemistry, The Minerva Center for Complex Biohybrid Systems, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Alessandro Cecconello
- Institute of Chemistry, The Minerva Center for Complex Biohybrid Systems, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Weiwei Guo
- Institute of Chemistry, The Minerva Center for Complex Biohybrid Systems, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Chunhai Fan
- Laboratory of Physical Biology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Itamar Willner
- Institute of Chemistry, The Minerva Center for Complex Biohybrid Systems, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
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37
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Lu CH, Guo W, Qi XJ, Neubauer A, Paltiel Y, Willner I. Hemin-G-quadruplex-crosslinked poly- N-isopropylacrylamide hydrogel: a catalytic matrix for the deposition of conductive polyaniline. Chem Sci 2015; 6:6659-6664. [PMID: 29435215 PMCID: PMC5802269 DOI: 10.1039/c5sc02203g] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 08/09/2015] [Indexed: 11/21/2022] Open
Abstract
A G-rich nucleic acid-tethered acrylamide/N-isopropylacrylamide (NIPAM) copolymer is prepared. The nucleic acid-modified pNIPAM chains assemble, in the presence of K+ ions, into a stimuli-responsive G-quadruplex-crosslinked pNIPAM hydrogel undergoing cyclic and reversible solution/hydrogel/solid transitions. Addition of kryptofix [2.2.2], CP, to the K+-stabilized G-quadruplex-crosslinked hydrogel eliminates the K+ ions from the crosslinking units, resulting in the transition of the hydrogel into a pNIPAM solution. In turn, heating the pNIPAM hydrogel from 25 °C to 40 °C results in the transition of the hydrogel to the solid state, and cooling the solid to 25 °C restores the hydrogel state. Incorporation of hemin into the G-quadruplex-crosslinked hydrogel results in a catalytic hydrogel that catalyzes the oxidation of aniline by H2O2 to form polyaniline. The polyaniline/pNIPAM hydrogel hybrid doped with 2 M HCl forms an emeraldine salt, which exhibits an electrical conductivity of 9 × 10-4 [cm Ω]-1.
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Affiliation(s)
- Chun-Hua Lu
- Institute of Chemistry and The Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel .
| | - Weiwei Guo
- Institute of Chemistry and The Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel .
| | - Xiu-Juan Qi
- Institute of Chemistry and The Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel . .,The Key Laboratory of Analysis and Detection Technology for Food Safety of the MOE , College of Chemistry , Fuzhou University , Fuzhou 350002 , China
| | - Avner Neubauer
- Applied Physics Department , Faculty of Science , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel
| | - Yossi Paltiel
- Applied Physics Department , Faculty of Science , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel
| | - Itamar Willner
- Institute of Chemistry and The Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel .
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38
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Ren J, Hu Y, Lu CH, Guo W, Aleman-Garcia MA, Ricci F, Willner I. pH-responsive and switchable triplex-based DNA hydrogels. Chem Sci 2015; 6:4190-4195. [PMID: 29218185 PMCID: PMC5707462 DOI: 10.1039/c5sc00594a] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Accepted: 05/12/2015] [Indexed: 12/21/2022] Open
Abstract
New methods for the preparation of reversible pH-responsive DNA hydrogels based on Hoogsteen triplex structures are described. One system consists of a hydrogel composed of duplex DNA units that bridge acrylamide chains at pH = 7.4 and undergoes dissolution at pH = 5.0 through the reconfiguration of one of the duplex bridging units into a protonated CG·C+ triplex structure. The second system consists of a hydrogel consisting of acrylamide chains crosslinked in the presence of an auxiliary strand by Hoogsteen TA·T triplex interaction at pH = 7.0. The hydrogel transforms into a liquid phase at pH = 10.0 due to the separation of the triplex bridging units. The two hydrogel systems undergo reversible and cyclic hydrogel/solution transitions by subjecting the systems to appropriate pH values. The anti-cancer drug, coralyne, binds specifically to the TA·T triplex-crosslinked hydrogel thereby increasing its stiffness. The pH-controlled release of the coralyne from the hydrogel is demonstrated.
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Affiliation(s)
- Jiangtao Ren
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel .
| | - Yuwei Hu
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel .
| | - Chun-Hua Lu
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel .
| | - Weiwei Guo
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel .
| | - Miguel Angel Aleman-Garcia
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel .
| | - Francesco Ricci
- Dipartimento di Scienze e Tecnologie Chimiche , University of Rome Tor Vergata , Rome 00133 , Italy
- Consorzio Interuniversitario Biostrutture e Biosistemi "INBB" , Rome , Italy
| | - Itamar Willner
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 91904 , Israel .
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Lilienthal S, Shpilt Z, Wang F, Orbach R, Willner I. Programmed DNAzyme-Triggered Dissolution of DNA-Based Hydrogels: Means for Controlled Release of Biocatalysts and for the Activation of Enzyme Cascades. ACS APPLIED MATERIALS & INTERFACES 2015; 7:8923-8931. [PMID: 25826003 DOI: 10.1021/acsami.5b02156] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Acrylamide/acrylamide-modified nucleic acid copolymer chains provide building units for the construction of acrylamide-DNA hydrogels. Three different hydrogels are prepared by the cross-linking of the acrylamide-DNA chains with metal ion-dependent DNAzyme sequences and their substrates. The metal ion-dependent DNAzyme sequences used in the study include the Cu(2+)-, Mg(2+)-, and Zn(2+)-dependent DNAzymes. In the presence of the respective metal ions, the substrates of the respective DNAzymes are cleaved, leading to the separation of the cross-linking units and to the dissolution of the hydrogel. The different hydrogels were loaded with a fluorophore-modified dextran or with a fluorophore-functionalized glucose oxidase. Treatment of the different hydrogels with the respective ions led to the release of the loaded dextran or the enzyme, and the rates of releasing of the loaded macromolecules followed the order of Cu(2+) > Mg(2+) > Zn(2+). Also, the different hydrogels were loaded with the enzymes β-galactosidase (β-Gal), glucose oxidase (GOx), or horseradish peroxidase (HRP). In the presence of the appropriate metal ions, the respective hydrogels were dissolved, resulting in the activation of the β-Gal/GOx or GOx/HRP bienzyme cascades and of the β-Gal/GOx/HRP trienzyme cascade.
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Affiliation(s)
- Sivan Lilienthal
- Institute of Chemistry, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Zohar Shpilt
- Institute of Chemistry, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Fuan Wang
- Institute of Chemistry, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Ron Orbach
- Institute of Chemistry, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Itamar Willner
- Institute of Chemistry, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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40
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A highly selective voltammetric sensor for nanomolar detection of mercury ions using a carbon ionic liquid paste electrode impregnated with novel ion imprinted polymeric nanobeads. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 48:205-12. [DOI: 10.1016/j.msec.2014.12.005] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 11/10/2014] [Accepted: 12/03/2014] [Indexed: 11/21/2022]
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41
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Guo W, Lu CH, Orbach R, Wang F, Qi XJ, Cecconello A, Seliktar D, Willner I. pH-stimulated DNA hydrogels exhibiting shape-memory properties. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:73-8. [PMID: 25377247 DOI: 10.1002/adma.201403702] [Citation(s) in RCA: 237] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Revised: 10/02/2014] [Indexed: 05/22/2023]
Abstract
Nucleic acid-functionalized polyacrylamide chains that are cooperatively cross-linked by i-motif and nucleic acid duplex units yield, at pH 5.0, DNA hydrogels exhibiting shape-memory properties. Separation of the i-motif units at pH 8.0 dissolves the hydrogel into a quasi-liquid phase. The residual duplex units provide, however, a memory code in the quasi-liquid allowing the regeneration of the hydrogel shape at pH 5.0.
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Affiliation(s)
- Weiwei Guo
- The Institute of Chemistry, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
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42
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Guo W, Lu CH, Qi XJ, Orbach R, Fadeev M, Yang HH, Willner I. Switchable Bifunctional Stimuli-Triggered Poly-N-Isopropylacrylamide/DNA Hydrogels. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201405692] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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43
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Guo W, Lu CH, Qi XJ, Orbach R, Fadeev M, Yang HH, Willner I. Switchable Bifunctional Stimuli-Triggered Poly-N-Isopropylacrylamide/DNA Hydrogels. Angew Chem Int Ed Engl 2014; 53:10134-8. [DOI: 10.1002/anie.201405692] [Citation(s) in RCA: 134] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 07/14/2014] [Indexed: 11/06/2022]
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44
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Ganguly M, Mondal C, Pal J, Pal A, Negishi Y, Pal T. Fluorescent Au(i)@Ag2/Ag3giant cluster for selective sensing of mercury(ii) ion. Dalton Trans 2014; 43:11557-65. [DOI: 10.1039/c4dt01158a] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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45
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Characterization of an electrochemical mercury sensor using alternating current, cyclic, square wave and differential pulse voltammetry. Anal Chim Acta 2014; 810:79-85. [DOI: 10.1016/j.aca.2013.12.005] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 11/26/2013] [Accepted: 12/02/2013] [Indexed: 11/22/2022]
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46
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Guo W, Qi XJ, Orbach R, Lu CH, Freage L, Mironi-Harpaz I, Seliktar D, Yang HH, Willner I. Reversible Ag+-crosslinked DNA hydrogels. Chem Commun (Camb) 2014; 50:4065-8. [DOI: 10.1039/c3cc49140d] [Citation(s) in RCA: 110] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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47
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Xiong X, Zhou C, Wu C, Zhu G, Chen Z, Tan W. Responsive DNA-based hydrogels and their applications. Macromol Rapid Commun 2013; 34:1271-83. [PMID: 23857726 PMCID: PMC4470902 DOI: 10.1002/marc.201300411] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Revised: 06/17/2013] [Indexed: 11/06/2022]
Abstract
The term hydrogel describes a type of soft and wet material formed by cross-linked hydrophilic polymers. The distinct feature of hydrogels is their ability to absorb a large amount of water and swell. The properties of a hydrogel are usually determined by the chemical properties of their constituent polymer(s). However, a group of hydrogels, called "smart hydrogels," changes properties in response to environmental changes or external stimuli. Recently, DNA or DNA-inspired responsive hydrogels have attracted considerable attention in construction of smart hydrogels because of the intrinsic advantages of DNA. As a biological polymer, DNA is hydrophilic, biocompatible, and highly programmable by Watson-Crick base pairing. DNA can form a hydrogel by itself under certain conditions, and it can also be incorporated into synthetic polymers to form DNA-hybrid hydrogels. Functional DNAs, such as aptamers and DNAzymes, provide additional molecular recognition capabilities and versatility. In this Review, DNA-based hydrogels are discussed in terms of their stimulus response, as well as their applications.
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Affiliation(s)
- Xiangling Xiong
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio- Sensing and Chemometrics, College of Biology and College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, 410082, China
| | - Cuisong Zhou
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio- Sensing and Chemometrics, College of Biology and College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, 410082, China
| | - Cuichen Wu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio- Sensing and Chemometrics, College of Biology and College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, 410082, China
| | - Guizhi Zhu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio- Sensing and Chemometrics, College of Biology and College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, 410082, China
| | | | - Weihong Tan
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio- Sensing and Chemometrics, College of Biology and College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, 410082, China
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Wang H, Helwa Y, Rempel GL. Preparation of polyacrylamide based microgels with different charges for drug encapsulation. Eur Polym J 2013. [DOI: 10.1016/j.eurpolymj.2013.04.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Döring A, Birnbaum W, Kuckling D. Responsive hydrogels--structurally and dimensionally optimized smart frameworks for applications in catalysis, micro-system technology and material science. Chem Soc Rev 2013; 42:7391-420. [PMID: 23677178 DOI: 10.1039/c3cs60031a] [Citation(s) in RCA: 252] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Although the technological and scientific importance of functional polymers has been well established over the last few decades, the most recent focus that has attracted much attention has been on stimuli-responsive polymers. This group of materials is of particular interest due to its ability to respond to internal and/or external chemico-physical stimuli, which is often manifested as large macroscopic responses. Aside from scientific challenges of designing stimuli-responsive polymers, the main technological interest lies in their numerous applications ranging from catalysis through microsystem technology and chemomechanical actuators to sensors that have been extensively explored. Since the phase transition phenomenon of hydrogels is theoretically well understood advanced materials based on the predictions can be prepared. Since the volume phase transition of hydrogels is a diffusion-limited process the size of the synthesized hydrogels is an important factor. Consistent downscaling of the gel size will result in fast smart gels with sufficient response times. In order to apply smart gels in microsystems and sensors, new preparation techniques for hydrogels have to be developed. For the up-coming nanotechnology, nano-sized gels as actuating materials would be of great interest.
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Affiliation(s)
- Artjom Döring
- Chemistry Department, University of Paderborn, Warburger Str. 100, D-33098 Paderborn, Germany
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He D, He X, Wang K, Zhao Y, Zou Z. Regenerable multifunctional mesoporous silica nanocomposites for simultaneous detection and removal of mercury(II). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:5896-904. [PMID: 23594101 DOI: 10.1021/la400415h] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Mercury (Hg(2+)) is a highly toxic and widespread environmental pollutant. Herein, a regenerable and highly selective core-shell structured magnetic mesoporous silica nanocomposite with functionalization of thymine (T) and T-rich DNA (denoted as Fe3O4@nSiO2@mSiO2-T-TRDNA nanocomposite) has been developed for simultaneous detection and removal of Hg(2+). In this work, the thymine and T-rich DNA were immobilized onto the interior and exterior surface of outermost mesoporous silica, respectively. The detection mechanism is based on Hg(2+)-mediated hairpin structure formed by T-rich DNA functionalized on the exterior surface of the nanocomposites, where, upon addition of SYBR Green I dye, strong fluorescence is observed. In the absence of Hg(2+), however, addition of the dye results in low fluorescence. The limit of detection for Hg(2+) in a buffer is 2 nM by fluorescence spectroscopy. Simultaneously, the Fe3O4@nSiO2@mSiO2-T-TRDNA nanocomposite features a selective binding with Hg(2+) between two thymines immobilized at the interior surface of the mesopores and exhibits efficient and convenient Hg(2+) removal by a magnet. Kinetic study reveals that the Hg(2+) removal is a rapid process with over 80% of Hg(2+) removed within approximately 1 h. The applicability of the developed nanocomposites is demonstrated to detect and remove Hg(2+) from samples of Xiangjiang river water spiked with Hg(2+). In addition, distinguishing aspects of the Fe3O4@nSiO2@mSiO2-T-TRDNA nanocomposites for Hg(2+) detection and removal also include the regeneration using a simple acid treatment and resistance to nuclease digestion. Similar process can be used to functionalize the Fe3O4@nSiO2@mSiO2 nanocomposites with other nucleic acids and small molecules for environmental and biomedical applications.
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Affiliation(s)
- Dinggeng He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Changsha 410082, P R China
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