151
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Tokura Y, Harvey S, Xu X, Chen C, Morsbach S, Wunderlich K, Fytas G, Wu Y, Ng DYW, Weil T. Polymer tube nanoreactors via DNA-origami templated synthesis. Chem Commun (Camb) 2018; 54:2808-2811. [PMID: 29492501 PMCID: PMC5885267 DOI: 10.1039/c7cc09620h] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Accepted: 02/14/2018] [Indexed: 11/21/2022]
Abstract
We describe the stepwise synthesis of precise polymeric objects programmed by a 3D DNA tube transformed from a common 2D DNA tile as a precise biotemplate for atom transfer radical polymerization. The catalytic interior space of the DNA tube was utilized for synthesizing a bio-inspired polymer, polydopamine.
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Affiliation(s)
- Yu Tokura
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany . ;
- Inorganic Chemistry I , Ulm University , Albert-Einstein-Allee 11 , 89081 Ulm , Germany .
| | - Sean Harvey
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany . ;
| | - Xuemei Xu
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica , School of Chemistry and Chemical Engineering , Huazhong University of Science and Technology , Luoyu Road 1037 , 430074 Hongshan , Wuhan , P. R. China
| | - Chaojian Chen
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany . ;
- Inorganic Chemistry I , Ulm University , Albert-Einstein-Allee 11 , 89081 Ulm , Germany .
| | - Svenja Morsbach
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany . ;
| | - Katrin Wunderlich
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany . ;
| | - George Fytas
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany . ;
| | - Yuzhou Wu
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany . ;
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica , School of Chemistry and Chemical Engineering , Huazhong University of Science and Technology , Luoyu Road 1037 , 430074 Hongshan , Wuhan , P. R. China
| | - David Y. W. Ng
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany . ;
| | - Tanja Weil
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany . ;
- Inorganic Chemistry I , Ulm University , Albert-Einstein-Allee 11 , 89081 Ulm , Germany .
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152
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O'Hagan MP, Mergny JL, Waller ZAE. G-quadruplexes in Prague: A Bohemian Rhapsody. Biochimie 2018; 147:170-180. [PMID: 29452278 DOI: 10.1016/j.biochi.2018.02.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 02/07/2018] [Indexed: 12/26/2022]
Abstract
The Sixth International Meeting on Quadruplex Nucleic Acids was held at the Hotel Internationale in Prague, Czech Republic from 31 May - 3 June 2017. A vibrant interdisciplinary community of over 300 scientists gathered to share their newest results in this exciting field and exchange ideas for further investigations.
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Affiliation(s)
- Michael Paul O'Hagan
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS1 1TS, UK.
| | - Jean-Louis Mergny
- Univ. Bordeaux, ARNA Laboratory, Inserm U1212, CNRS UMR 5320, IECB, F-33600, France; Institute of Biophysics, AS CR, v.v.i., Kralovopolska 135, 612 65 Brno, Czech Republic
| | - Zoë Ann Ella Waller
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK; Centre for Molecular and Structural Biochemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK.
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153
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Tokura Y, Harvey S, Chen C, Wu Y, Ng DYW, Weil T. Fabrication of Defined Polydopamine Nanostructures by DNA Origami-Templated Polymerization. Angew Chem Int Ed Engl 2018; 57:1587-1591. [PMID: 29211331 PMCID: PMC5817404 DOI: 10.1002/anie.201711560] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Indexed: 12/20/2022]
Abstract
A versatile, bottom-up approach allows the controlled fabrication of polydopamine (PD) nanostructures on DNA origami. PD is a biosynthetic polymer that has been investigated as an adhesive and promising surface coating material. However, the control of dopamine polymerization is challenged by the multistage-mediated reaction mechanism and diverse chemical structures in PD. DNA origami decorated with multiple horseradish peroxidase-mimicking DNAzyme motifs was used to control the shape and size of PD formation with nanometer resolution. These fabricated PD nanostructures can serve as "supramolecular glue" for controlling DNA origami conformations. Facile liberation of the PD nanostructures from the DNA origami templates has been achieved in acidic medium. This presented DNA origami-controlled polymerization of a highly crosslinked polymer provides a unique access towards anisotropic PD architectures with distinct shapes that were retained even in the absence of the DNA origami template.
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Affiliation(s)
- Yu Tokura
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Ulm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Sean Harvey
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Chaojian Chen
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Ulm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Yuzhou Wu
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology1037 Luoyu Load430074WuhanChina
| | - David Y. W. Ng
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Tanja Weil
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Ulm UniversityAlbert-Einstein-Allee 1189081UlmGermany
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154
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Ni J, Yang W, Wang Q, Luo F, Guo L, Qiu B, Lin Z, Yang H. Homogeneous and label-free electrochemiluminescence aptasensor based on the difference of electrostatic interaction and exonuclease-assisted target recycling amplification. Biosens Bioelectron 2018; 105:182-187. [PMID: 29412943 DOI: 10.1016/j.bios.2018.01.043] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 01/17/2018] [Accepted: 01/19/2018] [Indexed: 12/16/2022]
Abstract
The difference of electrostatic interaction between free Ru(phen)32+ and Ru(phen)32+ embedded in double strand DNA (dsDNA) to the negatively charged indium tin oxide (ITO) electrode has been applied to develop a homogeneous and label-free electrochemiluminescence (ECL) aptasensor for the first time. Ochratoxin A (OTA) has been chosen as the model target. The OTA aptamer is first hybridized with its complementary single strand DNA (ssDNA) to form dsDNA and then interacted with Ru(phen)32+ via the grooves binding mode to form dsDNA-Ru(phen)32+ complex, which remains negatively charged feature as well as low diffusion capacity to the negatively charged ITO electrode surface owing to the electrostatic repulsion. Meanwhile, the intercalated Ru(phen)32+ in the grooves of dsDNA works as an ECL signal reporter instead of the labor-intensive labeling steps and can generate much more ECL signal than that from the labeling probe. In the presence of target, the aptamer prefers to form an aptamer-target complex in lieu of dsDNA, which induces the releasing of Ru(phen)32+ from the dsDNA-Ru(phen)32+ complex into the solution. With the assistance of RecJf exonuclease (a ssDNA specific exonuclease), the released ssDNA and the aptamer in the target-complex were digested into mononucleotides. In the meantime, the target can be also liberated from OTA-aptamer complex and induce target cycling and large amount of free Ru(phen)32+ present in the solution. Since Ru(phen)32+ contains positive charges, which can diffuses easily to the ITO electrode surface because of electrostatic attraction, causing an obviously enhanced ECL signal detected. Under the optimal conditions, the enhanced ECL of the system has a linear relationship with the OTA concentration in the range of 0.01-1.0 ng/mL with a detection limit of 2 pg/mL. This innovative system not only expands the immobilization-free sensors in the electrochemiluminescent fields, but also can be developed for the detection of different targets easily with the same strategy by changing the aptamer used.
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Affiliation(s)
- Jiancong Ni
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China; Fujian Provincial Key Laboratory of Modern Analytical Science and Separation Technology, College of Chemistry and Environment, Minnan Normal University, Zhangzhou 363000, China
| | - Weiqiang Yang
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China
| | - Qingxiang Wang
- Fujian Provincial Key Laboratory of Modern Analytical Science and Separation Technology, College of Chemistry and Environment, Minnan Normal University, Zhangzhou 363000, China
| | - Fang Luo
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350116,China
| | - Longhua Guo
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
| | - Bin Qiu
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China
| | - Zhenyu Lin
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
| | - Huanghao Yang
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China
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155
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Biniuri Y, Albada B, Wolff M, Golub E, Gelman D, Willner I. Cu2+ or Fe3+ Terpyridine/Aptamer Conjugates: Nucleoapzymes Catalyzing the Oxidation of Dopamine to Aminochrome. ACS Catal 2018. [DOI: 10.1021/acscatal.7b03454] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yonatan Biniuri
- Institute
of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Bauke Albada
- Institute
of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
- Laboratory of Organic Chemistry, Wageningen University & Research, 6708 PB Wageningen, The Netherlands
| | - Mariusz Wolff
- Institute
of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Eyal Golub
- Institute
of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Dmitri Gelman
- 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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156
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Tokura Y, Harvey S, Chen C, Wu Y, Ng DYW, Weil T. Fabrication of Defined Polydopamine Nanostructures by DNA Origami-Templated Polymerization. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711560] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Yu Tokura
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
- Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Sean Harvey
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Chaojian Chen
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
- Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Yuzhou Wu
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology; 1037 Luoyu Load 430074 Wuhan China
| | - David Y. W. Ng
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Tanja Weil
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
- Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
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157
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Flanagan ML, Arguello AE, Colman DE, Kim J, Krejci JN, Liu S, Yao Y, Zhang Y, Gorin DJ. A DNA-conjugated small molecule catalyst enzyme mimic for site-selective ester hydrolysis. Chem Sci 2018; 9:2105-2112. [PMID: 29732115 PMCID: PMC5911826 DOI: 10.1039/c7sc04554a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 01/10/2018] [Indexed: 12/19/2022] Open
Abstract
The challenge of site-selectivity must be overcome in many chemical research contexts, including selective functionalization in complex natural products and labeling of one biomolecule in a living system. Synthetic catalysts incorporating molecular recognition domains can mimic naturally-occurring enzymes to direct a chemical reaction to a particular instance of a functional group. We propose that DNA-conjugated small molecule catalysts (DCats), prepared by tethering a small molecule catalyst to a DNA aptamer, are a promising class of reagents for site-selective transformations. Specifically, a DNA-imidazole conjugate able to increase the rate of ester hydrolysis in a target ester by >100-fold compared with equimolar untethered imidazole was developed. Other esters are unaffected. Furthermore, DCat-catalyzed hydrolysis follows enzyme-like kinetics and a stimuli-responsive variant of the DCat enables programmable "turn on" of the desired reaction.
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Affiliation(s)
- Moira L Flanagan
- Smith College , Department of Chemistry , Northampton , MA 01063 , USA .
| | - A Emilia Arguello
- Smith College , Department of Chemistry , Northampton , MA 01063 , USA .
| | - Drew E Colman
- Smith College , Department of Chemistry , Northampton , MA 01063 , USA .
| | - Jiyeon Kim
- Smith College , Department of Chemistry , Northampton , MA 01063 , USA .
| | - Jesse N Krejci
- Smith College , Department of Chemistry , Northampton , MA 01063 , USA .
| | - Shimu Liu
- Smith College , Department of Chemistry , Northampton , MA 01063 , USA .
| | - Yueyu Yao
- Smith College , Department of Chemistry , Northampton , MA 01063 , USA .
| | - Yu Zhang
- Smith College , Department of Chemistry , Northampton , MA 01063 , USA .
| | - David J Gorin
- Smith College , Department of Chemistry , Northampton , MA 01063 , USA .
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158
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Zhou Y, Liu B, Yang R, Liu J. Filling in the Gaps between Nanozymes and Enzymes: Challenges and Opportunities. Bioconjug Chem 2017; 28:2903-2909. [DOI: 10.1021/acs.bioconjchem.7b00673] [Citation(s) in RCA: 225] [Impact Index Per Article: 32.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yibo Zhou
- School
of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha 410114, P. R. China
| | - Biwu Liu
- Department
of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Ronghua Yang
- School
of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha 410114, P. R. China
| | - Juewen Liu
- School
of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha 410114, P. R. China
- Department
of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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159
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Zhang J, Smaga LP, Satyavolu NSR, Chan J, Lu Y. DNA Aptamer-Based Activatable Probes for Photoacoustic Imaging in Living Mice. J Am Chem Soc 2017; 139:17225-17228. [PMID: 29028325 PMCID: PMC5724028 DOI: 10.1021/jacs.7b07913] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Indexed: 12/22/2022]
Abstract
DNA aptamers are a powerful class of molecules for sensing targets, but have been limited when applied to imaging in living animals because most aptamer probes are fluorescence-based, which limits imaging penetration depth. Photoacoustic (PA) imaging emerged as an alternative to MRI and X-ray tomography in biomedical imaging, due to its ability to afford high-resolution images at depths in the cm range. Despite its promise, PA imaging is limited by a lack of strategies to design selective and activatable probes for targets. To overcome this limitation, we report design and demonstration of PA probes based on DNA aptamers that can hybridize to DNA strands conjugated to a near-infrared fluorophore/quencher pair (IRDye 800CW/IRDye QC-1) with efficient contact quenching. Binding of the target triggered a release of the DNA strand with the quencher and thus relief of the contact quenching, resulting in a change of the PA signal ratio at 780/725 nm. Using thrombin as a model, a relationship was established between the thrombin concentrations and the PA ratio, with a dynamic range of 0-1000 nM and a limit of detection of 112 nM. Finally, in vivo PA imaging studies showed that the PA ratio increased significantly 45 min after injection of thrombin but not with injection of PBS as a vehicle control, demonstrating the first aptamer-based activatable PA probe for advanced molecular imaging in living mice. Since in vitro selection can obtain aptamers selective for many targets, the design demonstrated can be applied for PA imaging of a number of targets.
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Affiliation(s)
- Jingjing Zhang
- Department
of Chemistry, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana−Champaign, Urbana Illinois 61801, United States
| | - Lukas P. Smaga
- Department
of Chemistry, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana−Champaign, Urbana Illinois 61801, United States
| | - Nitya Sai Reddy Satyavolu
- Department
of Chemistry, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana−Champaign, Urbana Illinois 61801, United States
| | - Jefferson Chan
- Department
of Chemistry, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana−Champaign, Urbana Illinois 61801, United States
| | - Yi Lu
- Department
of Chemistry, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana−Champaign, Urbana Illinois 61801, United States
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160
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Sun Y, Zhao C, Gao N, Ren J, Qu X. Stereoselective Nanozyme Based on Ceria Nanoparticles Engineered with Amino Acids. Chemistry 2017; 23:18146-18150. [PMID: 29131418 DOI: 10.1002/chem.201704579] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Indexed: 01/05/2023]
Abstract
Stereoselectivity towards substrates is one of the most important characteristics of enzymes. Amino acids, as cofactors of many enzymes, play important roles in stereochemistry. Herein, chiral nanozymes were constructed by grafting a series of d- or l-amino acids onto the surfaces of ceria (cerium oxide) nanoparticles. We selected the most commonly used drug for combating Parkinson's disease, that is, 3,4-dihydroxyphenylalanine (DOPA) enantiomers, as examples for chiral catalysis. Through detailed kinetic studies of cerium oxide nanoparticles (CeNPs) modified with different eight amino acids, we found that phenylalanine-modified CeNP was optimal for the DOPA oxidation reaction and showed excellent stereoselectivity towards its enantiomers. l-Phenylalanine-modified CeNPs showed higher catalytic ability for oxidation of d-DOPA, while d-phenylalanine-modified CeNPs were more effective towards l-DOPA. Taken together, the results indicated that stereoselective nanozyme can be constructed by grafting nanoparticles with chiral molecules. This work may inspire better design of chiral nanozymes.
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Affiliation(s)
- Yuhuan Sun
- Laboratory of Chemical Biology, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.,University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Chuanqi Zhao
- Laboratory of Chemical Biology, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
| | - Nan Gao
- Laboratory of Chemical Biology, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
| | - Jinsong Ren
- Laboratory of Chemical Biology, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
| | - Xiaogang Qu
- Laboratory of Chemical Biology, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
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161
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Röthlisberger P, Gasse C, Hollenstein M. Nucleic Acid Aptamers: Emerging Applications in Medical Imaging, Nanotechnology, Neurosciences, and Drug Delivery. Int J Mol Sci 2017; 18:E2430. [PMID: 29144411 PMCID: PMC5713398 DOI: 10.3390/ijms18112430] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 11/08/2017] [Accepted: 11/09/2017] [Indexed: 12/25/2022] Open
Abstract
Recent progresses in organic chemistry and molecular biology have allowed the emergence of numerous new applications of nucleic acids that markedly deviate from their natural functions. Particularly, DNA and RNA molecules-coined aptamers-can be brought to bind to specific targets with high affinity and selectivity. While aptamers are mainly applied as biosensors, diagnostic agents, tools in proteomics and biotechnology, and as targeted therapeutics, these chemical antibodies slowly begin to be used in other fields. Herein, we review recent progress on the use of aptamers in the construction of smart DNA origami objects and MRI and PET imaging agents. We also describe advances in the use of aptamers in the field of neurosciences (with a particular emphasis on the treatment of neurodegenerative diseases) and as drug delivery systems. Lastly, the use of chemical modifications, modified nucleoside triphosphate particularly, to enhance the binding and stability of aptamers is highlighted.
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Affiliation(s)
- Pascal Röthlisberger
- Institut Pasteur, Department of Structural Biology and Chemistry, Laboratory for Bioorganic Chemistry of Nucleic Acids, CNRS UMR3523, 28, rue du Docteur Roux, 75724 Paris CEDEX 15, France.
| | - Cécile Gasse
- Institute of Systems & Synthetic Biology, Xenome Team, 5 rue Henri Desbruères Genopole Campus 1, University of Evry, F-91030 Evry, France.
| | - Marcel Hollenstein
- Institut Pasteur, Department of Structural Biology and Chemistry, Laboratory for Bioorganic Chemistry of Nucleic Acids, CNRS UMR3523, 28, rue du Docteur Roux, 75724 Paris CEDEX 15, France.
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162
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Hu Y, Cecconello A, Idili A, Ricci F, Willner I. Triplex DNA Nanostructures: From Basic Properties to Applications. Angew Chem Int Ed Engl 2017; 56:15210-15233. [PMID: 28444822 DOI: 10.1002/anie.201701868] [Citation(s) in RCA: 227] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Indexed: 12/16/2022]
Abstract
Triplex nucleic acids have recently attracted interest as part of the rich "toolbox" of structures used to develop DNA-based nanostructures and materials. This Review addresses the use of DNA triplexes to assemble sensing platforms and molecular switches. Furthermore, the pH-induced, switchable assembly and dissociation of triplex-DNA-bridged nanostructures are presented. Specifically, the aggregation/deaggregation of nanoparticles, the reversible oligomerization of origami tiles and DNA circles, and the use of triplex DNA structures as functional units for the assembly of pH-responsive systems and materials are described. Examples include semiconductor-loaded DNA-stabilized microcapsules, DNA-functionalized dye-loaded metal-organic frameworks (MOFs), and the pH-induced release of the loads. Furthermore, the design of stimuli-responsive DNA-based hydrogels undergoing reversible pH-induced hydrogel-to-solution transitions using triplex nucleic acids is introduced, and the use of triplex DNA to assemble shape-memory hydrogels is discussed. An outlook for possible future applications of triplex nucleic acids is also provided.
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Affiliation(s)
- Yuwei Hu
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - Alessandro Cecconello
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - Andrea Idili
- Department of Chemistry, University of Rome, Tor Vergata, via della Ricerca Scientifica, 00133, Rome, Italy
| | - Francesco Ricci
- Department of Chemistry, University of Rome, Tor Vergata, via della Ricerca Scientifica, 00133, Rome, Italy
| | - Itamar Willner
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
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163
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Hu Y, Cecconello A, Idili A, Ricci F, Willner I. Triplex-DNA-Nanostrukturen: von grundlegenden Eigenschaften zu Anwendungen. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701868] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Yuwei Hu
- Institute of Chemistry; The Hebrew University of Jerusalem; Jerusalem 91904 Israel
| | | | - Andrea Idili
- Department of Chemistry; Universität Rom; Tor Vergata, via della Ricerca Scientifica 00133 Rom Italien
| | - Francesco Ricci
- Department of Chemistry; Universität Rom; Tor Vergata, via della Ricerca Scientifica 00133 Rom Italien
| | - Itamar Willner
- Institute of Chemistry; The Hebrew University of Jerusalem; Jerusalem 91904 Israel
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164
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Liu Q, Wang H, Shi X, Wang ZG, Ding B. Self-Assembled DNA/Peptide-Based Nanoparticle Exhibiting Synergistic Enzymatic Activity. ACS NANO 2017; 11:7251-7258. [PMID: 28657711 DOI: 10.1021/acsnano.7b03195] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Designing enzyme-mimicking active sites in artificial systems is key to achieving catalytic efficiencies rivaling those of natural enzymes and can provide valuable insight in the understanding of the natural evolution of enzymes. Here, we report the design of a catalytic hemin-containing nanoparticle with self-assembled guanine-rich nucleic acid/histidine-rich peptide components that mimics the active site and peroxidative activity of hemoproteins. The chemical complementarities between the folded nucleic acid and peptide enable the spatial arrangement of essential elements in the active site and effective activation of hemin. As a result, remarkable synergistic effects of nucleic acid and peptide on the catalytic performances were observed. The turnover number of peroxide reached the order of that of natural peroxidase, and the catalytic efficiency is comparable to that of myoglobin. These results have implications in the precise design of supramolecular enzyme mimetics, particularly those with hierarchical active sites. The assemblies we describe here may also resemble an intermediate in the evolution of contemporary enzymes from the catalytic RNA of primitive cells.
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Affiliation(s)
- Qing Liu
- CAS Key Laboratory of Nanosystem and Hierarchial Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P.R. China
- University of Chinese Academy of Sciences , Beijing 100049, P.R. China
| | - Hui Wang
- CAS Key Laboratory of Nanosystem and Hierarchial Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P.R. China
| | - Xinghua Shi
- CAS Key Laboratory of Nanosystem and Hierarchial Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P.R. China
- University of Chinese Academy of Sciences , Beijing 100049, P.R. China
| | - Zhen-Gang Wang
- CAS Key Laboratory of Nanosystem and Hierarchial Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P.R. China
| | - Baoquan Ding
- CAS Key Laboratory of Nanosystem and Hierarchial Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P.R. China
- University of Chinese Academy of Sciences , Beijing 100049, P.R. China
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165
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Wang S, Yue L, Shpilt Z, Cecconello A, Kahn JS, Lehn JM, Willner I. Controlling the Catalytic Functions of DNAzymes within Constitutional Dynamic Networks of DNA Nanostructures. J Am Chem Soc 2017. [DOI: 10.1021/jacs.7b04531] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Shan Wang
- Institute
of Chemistry, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Liang Yue
- 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
| | - Alessandro Cecconello
- Institute
of Chemistry, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Jason S. Kahn
- Institute
of Chemistry, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Jean-Marie Lehn
- Institut
de Science et d’Ingénierie Supramoléculaires
(ISIS), University of Strasbourg, 8 Rue Gaspard Monge, Strasbourg 67000, France
| | - Itamar Willner
- Institute
of Chemistry, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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166
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Huang Y, Pu F, Ren J, Qu X. Artificial Enzyme-based Logic Operations to Mimic an Intracellular Enzyme-participated Redox Balance System. Chemistry 2017; 23:9156-9161. [DOI: 10.1002/chem.201701353] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Yanyan Huang
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences, Changchun; Jilin 130022 P. R. China
- University of Chinese Academy of Sciences; Beijing 100039 P. R. China
| | - Fang Pu
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences, Changchun; Jilin 130022 P. R. China
| | - Jinsong Ren
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences, Changchun; Jilin 130022 P. R. China
| | - Xiaogang Qu
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences, Changchun; Jilin 130022 P. R. China
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167
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Zhou X, Guo S, Gao J, Zhao J, Xue S, Xu W. Glucose oxidase-initiated cascade catalysis for sensitive impedimetric aptasensor based on metal-organic frameworks functionalized with Pt nanoparticles and hemin/G-quadruplex as mimicking peroxidases. Biosens Bioelectron 2017; 98:83-90. [PMID: 28654887 DOI: 10.1016/j.bios.2017.06.039] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Revised: 06/16/2017] [Accepted: 06/19/2017] [Indexed: 12/21/2022]
Abstract
Based on cascade catalysis amplification driven by glucose oxidase (GOx), a sensitive electrochemical impedimetric aptasensor for protein (carcinoembryonic antigen, CEA as tested model) was proposed by using Cu-based metal-organic frameworks functionalized with Pt nanoparticles, aptamer, hemin and GOx (Pt@CuMOFs-hGq-GOx). CEA aptamer loaded onto Pt@CuMOFs was bound with hemin to form hemin@G-quadruplex (hGq) with mimicking peroxidase activity. Through sandwich-type reaction of target CEA and CEA aptamers (Apt1 and Apt2), the obtained Pt@CuMOFs-hGq-GOx as signal transduction probes (STPs) was captured to the modified electrode interface. When 3,3-diaminobenzidine (DAB) and glucose were introduced, the cascade reaction was initiated by GOx to catalyze the oxidation of glucose, in situ generating H2O2. Simultaneously, the decomposition of the generated H2O2 was greatly promoted by Pt@CuMOFs and hGq as synergistic peroxide catalysts, accompanying with the significant oxidation process of DAB and the formation of nonconductive insoluble precipitates (IPs). As a result, the electron transfer in the resultant sensing interface was effectively hindered and the electrochemical impedimetric signal (EIS) was efficiently amplified. Thus, the high sensitivity of the proposed CEA aptasensor was successfully improved with 0.023pgmL-1, which may be promising and potential in assaying certain clinical disease related to CEA.
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Affiliation(s)
- Xingxing Zhou
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Shijing Guo
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Jiaxi Gao
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Jianmin Zhao
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Shuyan Xue
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Wenju Xu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.
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168
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Catalytic Performance of Oligonucleotide-Templated Pt Nanozyme Evaluated by Laccase Substrates. Catal Letters 2017. [DOI: 10.1007/s10562-017-2106-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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169
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Zhang S, Li R, Liu X, Yang L, Lu Q, Liu M, Li H, Zhang Y, Yao S. A novel multiple signal amplifying immunosensor based on the strategy of in situ-produced electroactive substance by ALP and carbon-based Ag-Au bimetallic as the catalyst and signal enhancer. Biosens Bioelectron 2017; 92:457-464. [DOI: 10.1016/j.bios.2016.10.080] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 09/28/2016] [Accepted: 10/25/2016] [Indexed: 12/25/2022]
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170
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Álvarez-Martos I, Ferapontova EE. A DNA sequence obtained by replacement of the dopamine RNA aptamer bases is not an aptamer. Biochem Biophys Res Commun 2017; 489:381-385. [PMID: 28576492 DOI: 10.1016/j.bbrc.2017.05.134] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 05/18/2017] [Accepted: 05/23/2017] [Indexed: 10/19/2022]
Abstract
A unique specificity of the aptamer-ligand biorecognition and binding facilitates bioanalysis and biosensor development, contributing to discrimination of structurally related molecules, such as dopamine and other catecholamine neurotransmitters. The aptamer sequence capable of specific binding of dopamine is a 57 nucleotides long RNA sequence reported in 1997 (Biochemistry, 1997, 36, 9726). Later, it was suggested that the DNA homologue of the RNA aptamer retains the specificity of dopamine binding (Biochem. Biophys. Res. Commun., 2009, 388, 732). Here, we show that the DNA sequence obtained by the replacement of the RNA aptamer bases for their DNA analogues is not able of specific biorecognition of dopamine, in contrast to the original RNA aptamer sequence. This DNA sequence binds dopamine and structurally related catecholamine neurotransmitters non-specifically, as any DNA sequence, and, thus, is not an aptamer and cannot be used neither for in vivo nor in situ analysis of dopamine in the presence of structurally related neurotransmitters.
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Affiliation(s)
- Isabel Álvarez-Martos
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark
| | - Elena E Ferapontova
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark.
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171
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Relations between the loop transposition of DNA G-quadruplex and the catalytic function of DNAzyme. Biochim Biophys Acta Gen Subj 2017; 1861:1913-1920. [PMID: 28533132 DOI: 10.1016/j.bbagen.2017.05.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 04/26/2017] [Accepted: 05/18/2017] [Indexed: 01/11/2023]
Abstract
The structures of DNA G-quadruplexes are essential for their functions in vivo and in vitro. Our present study revealed that sequential order of the three G-quadruplex loops, that is, loop transposition, could be a critical factor to determinate the G-quadruplex conformation and consequently improved the catalytic function of G-quadruplex based DNAzyme. In the presence of 100mM K+, loop transposition induced one of the G-quadruplex isomers which shared identical loops but differed in the sequential order of loops into a hybrid topology while the others into predominately parallel topologies. 1D NMR spectroscopy and mutation analysis suggested that the hydrogen bonding from loops residues with nucleotides in flanking sequences may be responsible for the stabilization of the different conformations. A well-known DNAzyme consisting of G-quadruplex and hemin (Ferriprotoporphyrin IX chloride) was chosen to test the catalytic function. We found that the loop transposition could enhance the reaction rate obviously by increasing the hemin binding affinity to G-quadruplex. These findings disclose the relations between the loop transposition, G-quadruplex conformation and catalytic function of DNAzyme.
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172
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Ueki R, Atsuta S, Ueki A, Sando S. Nongenetic Reprogramming of the Ligand Specificity of Growth Factor Receptors by Bispecific DNA Aptamers. J Am Chem Soc 2017; 139:6554-6557. [PMID: 28459560 DOI: 10.1021/jacs.7b02411] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The reprogramming of receptor-ligand interactions affords an opportunity to direct cells to respond to user-defined external cues. Although this has often been achieved via the genetic engineering of receptors, an alternative, nongenetic approach is highly demanded. In this article, we propose the design of oligonucleotide-based synthetic switches that feature the ability to reprogram the ligand specificity of the growth factor receptor. We demonstrated that our synthetic switches induced growth factor signaling via the formation of the dynamic complex with specific external cues that would otherwise not induce the signaling. This chemical approach may be applied to designing a new class of chemical tools that can control the activities of native cells and represent smart and safer regenerative drugs.
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Affiliation(s)
- Ryosuke Ueki
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Saki Atsuta
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Ayaka Ueki
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Shinsuke Sando
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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173
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Cai N, Tan L, Li Y, Xia T, Hu T, Su X. Biosensing platform for the detection of uric acid based on graphene quantum dots and G-quadruplex/hemin DNAzyme. Anal Chim Acta 2017; 965:96-102. [DOI: 10.1016/j.aca.2017.01.067] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 01/27/2017] [Accepted: 01/31/2017] [Indexed: 12/22/2022]
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174
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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: 274] [Impact Index Per Article: 39.1] [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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175
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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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176
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Ge S, Zhang L, Zhang Y, Lan F, Yan M, Yu J. Nanomaterials-modified cellulose paper as a platform for biosensing applications. NANOSCALE 2017; 9:4366-4382. [PMID: 28155933 DOI: 10.1039/c6nr08846e] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Recently, paper substrates have attracted tremendous interest from both academia and industry. Not only is paper highly abundant and portable, it is lightweight, disposable, easy-to-use, and can be rolled or folded into 3D configurations. More importantly, with a unique porous bulk structure and rough and absorptive surface properties, the construction of nanomaterials-functionalized cellulose has enabled cellulose paper to be applied for point-of-care (POC) paper devices with reasonably good performance at low cost. In this review, the latest advances in the modification of nanomaterials on paper cellulose are summed up. To begin with, the attractive properties of paper-based analytical devices are described. Then, fabricating methods for the functionalization of cellulose with diverse materials, including noble metals, bimetals, metal oxides, carbon nanomaterials, and molecular imprinting polymer nanoparticles, as well as their applications, are introduced in detail. Finally, the current critical issues, challenges, and future prospectives for exploring a paper-based analytical system based on nanomaterials-modified cellulose are discussed. It is believed that more strategies will be developed in the future to construct nanomaterials-functionalized cellulose, paving the way for the mass production of POC paper devices with a satisfactory performance.
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Affiliation(s)
- Shenguang Ge
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China.
| | - Lina Zhang
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, School of Material Science and Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Yan Zhang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China.
| | - Feifei Lan
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China.
| | - Mei Yan
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China.
| | - Jinghua Yu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China.
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177
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Vázquez-González M, Liao WC, Cazelles R, Wang S, Yu X, Gutkin V, Willner I. Mimicking Horseradish Peroxidase Functions Using Cu 2+-Modified Carbon Nitride Nanoparticles or Cu 2+-Modified Carbon Dots as Heterogeneous Catalysts. ACS NANO 2017; 11:3247-3253. [PMID: 28234445 DOI: 10.1021/acsnano.7b00352] [Citation(s) in RCA: 185] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Cu2+-functionalized carbon nitride nanoparticles (Cu2+-g-C3N4 NPs), ∼200 nm, and Cu2+-carbon dots (Cu2+-C-dots), ∼8 nm, act as horseradish peroxidase-mimicking catalysts. The nanoparticles catalyze the generation of chemiluminescence in the presence of luminol/H2O2 and catalyze the oxidation of dopamine by H2O2 to form aminochrome. The Cu2+-g-C3N4-driven generation of chemiluminescence is used to develop a H2O2 sensor and is implemented to develop a glucose detection platform and a sensor for probing glucose oxidase. Also, the Cu2+-C-dots are functionalized with the β-cyclodextrin (β-CD) receptor units. The concentration of dopamine, at the Cu2+-C-dots' surface, by means of the β-CD receptor sites, leads to a 4-fold enhancement in the oxidation of dopamine by H2O2 to yield aminochrome compared to that of the unmodified C-dots.
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Affiliation(s)
- Margarita Vázquez-González
- Institute of Chemistry, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Wei-Ching Liao
- Institute of Chemistry, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Rémi Cazelles
- Institute of Chemistry, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Shan Wang
- Institute of Chemistry, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Xu Yu
- Institute of Chemistry, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Vitaly Gutkin
- 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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178
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Wang S, Cazelles R, Liao WC, Vázquez-González M, Zoabi A, Abu-Reziq R, Willner I. Mimicking Horseradish Peroxidase and NADH Peroxidase by Heterogeneous Cu 2+-Modified Graphene Oxide Nanoparticles. NANO LETTERS 2017; 17:2043-2048. [PMID: 28183178 DOI: 10.1021/acs.nanolett.7b00093] [Citation(s) in RCA: 143] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Cu2+-ion-modified graphene oxide nanoparticles, Cu2+-GO NPs, act as a heterogeneous catalyst mimicking functions of horseradish peroxidase, HRP, and of NADH peroxidase. The Cu2+-GO NPs catalyze the oxidation of dopamine to aminochrome by H2O2 and catalyze the generation of chemiluminescence in the presence of luminol and H2O2. The Cu2+-GO NPs provide an active material for the chemiluminescence detection of H2O2 and allow the probing of the activity of H2O2-generating oxidases and the detection of their substrates. This is exemplified with detecting glucose by the aerobic oxidation of glucose by glucose oxidase and the Cu2+-GO NP-stimulated chemiluminescence intensity generated by the H2O2 product. Similarly, the Cu2+-GO NPs catalyze the H2O2 oxidation of NADH to the biologically active NAD+ cofactor. This catalytic system allows its conjugation to biocatalytic transformations involving NAD+-dependent enzyme, as exemplified for the alcohol dehydrogenase-catalyzed oxidation of benzyl alcohol to benzoic acid through the Cu2+-GO NPs-catalyzed regeneration of NAD+.
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Affiliation(s)
- Shan Wang
- Institute of Chemistry, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Rémi Cazelles
- Institute of Chemistry, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Wei-Ching Liao
- Institute of Chemistry, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Margarita Vázquez-González
- Institute of Chemistry, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Amani Zoabi
- Institute of Chemistry, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Raed Abu-Reziq
- 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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179
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Chen J, Guo Y, Zhou J, Ju H. The Effect of Adenine Repeats on G-quadruplex/hemin Peroxidase Mimicking DNAzyme Activity. Chemistry 2017; 23:4210-4215. [PMID: 28121370 DOI: 10.1002/chem.201700040] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Indexed: 01/19/2023]
Abstract
The catalytic activity of G-quadruplex/hemin is much lower than that of proteinous enzymes, so it is very important to increase its activity. Very recently, flanking sequences, which can be regarded as an external part of G-quadruplexes, were found to enhance the activity of G-quadruplex/hemin DNAzyme. However, little is known about the effect of internal parts, such as loop sequences and linkers, on the activity. In the present study, adenine repeats were incorporated into several designed G-quadruplex structures either in the loops, bulges, or linkers, and the constructed G-quadruplex/hemin DNAzyme exhibit about fivefold improvement in peroxidase-mimicking activity in some cases. The enhancement effect may result from the formation of compound I, protoporphyrin⋅FeIV =O.+ , accelerated by dA repeats, which was demonstrated by H2 O2 decay kinetics and pH dependency analysis. The novel enhancement methods described here may help in the development of high-activity DNAzymes, illustrated by a dimer G-quadruplex with flanking adenine at one end, a relatively long adenine run in one loop, and another adenine run in the linker.
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Affiliation(s)
- Jielin Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Yuehua Guo
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Jun Zhou
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Huangxian Ju
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
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180
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Tamura T, Nakano S, Nakata E, Morii T. Construction of a library of structurally diverse ribonucleopeptides with catalytic groups. Bioorg Med Chem 2017; 25:1881-1888. [PMID: 28223024 DOI: 10.1016/j.bmc.2017.02.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 01/31/2017] [Accepted: 02/03/2017] [Indexed: 01/20/2023]
Abstract
Functional screening of structurally diverse libraries consisting of proteins or nucleic acids is an effective method to obtain receptors or aptamers with unique molecular recognition characteristics. However, further modification of these selected receptors to exert a newly desired function is still a challenging task. We have constructed a library of structurally diverse ribonucleopeptides (RNPs) that are modified with a catalytic group, in which the catalytic group aligns with various orientations against the ATP binding pocket of RNA subunit. As a proof-of-principle, the screening of the constructed RNP library for the catalytic reaction of ester hydrolysis was successfully carried out. The size of both the substrate-binding RNA library and the catalytic group modified peptide library are independently expandable, and thus, the size of RNPs library could be enlarged by a combination of these two subunits. We anticipate that the library of functionalized and structurally diverse RNPs would be expanded for various other catalytic reactions.
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Affiliation(s)
- Tomoki Tamura
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Shun Nakano
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Eiji Nakata
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takashi Morii
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.
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181
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Zhang Z, Liu B, Liu J. Molecular Imprinting for Substrate Selectivity and Enhanced Activity of Enzyme Mimics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1602730. [PMID: 27925383 DOI: 10.1002/smll.201602730] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 10/26/2016] [Indexed: 06/06/2023]
Abstract
Using molecular imprinting, a peroxidase-mimicking DNAzyme has achieved substrate specificity with enhanced activity in a nanoscale gel for three different substrates.
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Affiliation(s)
- Zijie Zhang
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Ave W, Waterloo, ON, N2L 3G1, Canada
| | - Biwu Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Ave W, Waterloo, ON, N2L 3G1, Canada
| | - Juewen Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Ave W, Waterloo, ON, N2L 3G1, Canada
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182
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Liu Z, Luo X, Li Z, Huang Y, Nie Z, Wang HH, Yao S. Enzyme-Activated G-Quadruplex Synthesis for in Situ Label-Free Detection and Bioimaging of Cell Apoptosis. Anal Chem 2017; 89:1892-1899. [DOI: 10.1021/acs.analchem.6b04360] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Zhuoliang Liu
- College
of Science, National University of Defence Technology, Changsha, 410073, People’s Republic of China
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183
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Fu J, Yang YR, Dhakal S, Zhao Z, Liu M, Zhang T, Walter NG, Yan H. Assembly of multienzyme complexes on DNA nanostructures. Nat Protoc 2016; 11:2243-2273. [DOI: 10.1038/nprot.2016.139] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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184
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Liu B, Han X, Liu J. Iron oxide nanozyme catalyzed synthesis of fluorescent polydopamine for light-up Zn(2+) detection. NANOSCALE 2016; 8:13620-13626. [PMID: 27364882 DOI: 10.1039/c6nr02584f] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Fluorescent polydopamine (FPD) is an interesting material with excellent biocompatibility. However, its preparation is currently a lengthy and potentially dangerous process. We herein employ magnetic iron oxide (Fe3O4) nanoparticles as a peroxidase-mimicking nanozyme to produce FPD under mild conditions. Different from previous protocols using multiple steps with up to 6% (∼2 M) H2O2, this preparation takes place in a single step with just 5 mM H2O2 at room temperature. The oxidized product shows excitation-wavelength-dependent emission peaks, similar to previous reports. The reaction kinetics, pH, temperature, and ionic strength are individually optimized. Among a diverse range of other nanomaterials tested, including Fe2O3, CeO2, CoO, Co3O4, NiO, TiO2, gold nanoparticles, and graphene oxide, Fe2O3 and graphene oxide yielded relatively weak emission, while the rest of the materials failed to produce FPD. The Fe3O4 nanoparticles retained ∼90% catalytic activity even after ten cycles of synthesis. Finally, Zn(2+) can enhance the fluorescence of FPD under 360 nm excitation but not under 480 nm excitation, leading to a sensitive light-up sensor with a detection limit of 60 nM Zn(2+). Therefore, this work has demonstrated not only a novel use of nanozymes, but also an interesting application of FPD.
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Affiliation(s)
- Biwu Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, CanadaN2L 3G1.
| | - Xiao Han
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, CanadaN2L 3G1.
| | - Juewen Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, CanadaN2L 3G1.
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185
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Catalytic DNA: Scope, Applications, and Biochemistry of Deoxyribozymes. Trends Biochem Sci 2016; 41:595-609. [PMID: 27236301 DOI: 10.1016/j.tibs.2016.04.010] [Citation(s) in RCA: 243] [Impact Index Per Article: 30.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Revised: 04/27/2016] [Accepted: 04/29/2016] [Indexed: 11/23/2022]
Abstract
The discovery of natural RNA enzymes (ribozymes) prompted the pursuit of artificial DNA enzymes (deoxyribozymes) by in vitro selection methods. A key motivation is the conceptual and practical advantages of DNA relative to proteins and RNA. Early studies focused on RNA-cleaving deoxyribozymes, and more recent experiments have expanded the breadth of catalytic DNA to many other reactions. Including modified nucleotides has the potential to widen the scope of DNA enzymes even further. Practical applications of deoxyribozymes include their use as sensors for metal ions and small molecules. Structural studies of deoxyribozymes are only now beginning; mechanistic experiments will surely follow. Following the first report 21 years ago, the field of deoxyribozymes has promise for both fundamental and applied advances in chemistry, biology, and other disciplines.
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186
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Albada HB, Golub E, Willner I. Rational design of supramolecular hemin/G-quadruplex-dopamine aptamer nucleoapzyme systems with superior catalytic performance. Chem Sci 2016; 7:3092-3101. [PMID: 29997801 PMCID: PMC6005209 DOI: 10.1039/c5sc04832j] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 01/23/2016] [Indexed: 11/21/2022] Open
Abstract
The rational design of a set of hemin/G-quadruplex (hGQ)-dopamine binding aptamer (DBA) conjugates, acting as nucleoapzymes, is described. The nucleoapzyme constructs consist of a hGQ DNAzyme as a catalytic unit and DBA as a substrate binding unit that are brought into spatial proximity by a duplex scaffold composed of complementary oligonucleotide strands. When the hGQ unit is linked to the duplex scaffold via a single-strand DNA tether of variable length, the resulting nucleoapzymes reveal a moderate catalytic enhancement toward the H2O2-mediated oxidation of dopamine to aminochrome as compared to the process stimulated by the separated hGQ and DBA units (5-7 fold enhancement). This limited enhancement is attributed to inappropriate spatial positioning of the hGQ in respect to the dopamine binding site, and/or to the flexibility of the tether that links the hGQ catalytic site to the double-stranded scaffold. To solve this, rigidification of the hGQ/DBA conjugates by triplex oligonucleotide structures that anchor the hGQ to a duplex domain associated with the DBA units was achieved. By the sequential, programmed, triplex-controlled rigidification of the hGQ/DBA structure, a nucleoapzyme with superior catalytic activity toward the oxidation of dopamine to aminochrome is identified (30-fold catalytic enhancement). Molecular dynamics simulations reveal that in the resulting highly active rigidified nucleoapzyme structure, the hGQ catalytic site is positioned in spatial proximity to the opening of the DBA substrate binding site, thus rationalizing and supporting the enhanced catalytic functions of the system. Finally, the most active nucleoapzyme system was subjected to fuel- and anti-fuel strands that separate and re-assemble the nucleoapzyme structure, allowing "ON" and "OFF" switching of the nucleoapzyme catalytic functions.
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Affiliation(s)
- H Bauke Albada
- Institute of Chemistry , The Minerva Center for Biohybrid Complex Systems , The Hebrew University of Jerusalem , Jerusalem , 91904 , Israel . ; ; Tel: +972-2-6585272
| | - Eyal Golub
- Institute of Chemistry , The Minerva Center for Biohybrid Complex Systems , The Hebrew University of Jerusalem , Jerusalem , 91904 , Israel . ; ; Tel: +972-2-6585272
| | - Itamar Willner
- Institute of Chemistry , The Minerva Center for Biohybrid Complex Systems , The Hebrew University of Jerusalem , Jerusalem , 91904 , Israel . ; ; Tel: +972-2-6585272
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187
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Cheng M, Li Y, Zhou J, Jia G, Lu SM, Yang Y, Li C. Enantioselective sulfoxidation reaction catalyzed by a G-quadruplex DNA metalloenzyme. Chem Commun (Camb) 2016; 52:9644-7. [DOI: 10.1039/c6cc03016e] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Enantioselective sulfoxidation reaction is achieved for the first time by a human telomeric G-quadruplex DNA based biocatalyst.
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Affiliation(s)
- Mingpan Cheng
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Yinghao Li
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Jun Zhou
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Guoqing Jia
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Sheng-Mei Lu
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Yan Yang
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Can Li
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
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188
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Albada HB, de Vries JW, Liu Q, Golub E, Klement N, Herrmann A, Willner I. Supramolecular micelle-based nucleoapzymes for the catalytic oxidation of dopamine to aminochrome. Chem Commun (Camb) 2016; 52:5561-4. [DOI: 10.1039/c6cc01115b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Lipidated DNAzymes or a lipidated Cu(ii)-complex and lipidated aptamer sequences form supramolecular assemblies of micellar nucleoapzymes for the enhanced oxidation of dopamine to aminochrome.
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Affiliation(s)
- H. Bauke Albada
- Institute of Chemistry
- The Minerva Center for Biohybrid Complex Systems
- The Hebrew University of Jerusalem
- Jerusalem 91904
- Israel
| | - Jan Willem de Vries
- Zernike Institute for Advanced Materials
- University of Groningen
- Groningen
- The Netherlands
| | - Qing Liu
- Zernike Institute for Advanced Materials
- University of Groningen
- Groningen
- The Netherlands
| | - Eyal Golub
- Institute of Chemistry
- The Minerva Center for Biohybrid Complex Systems
- The Hebrew University of Jerusalem
- Jerusalem 91904
- Israel
| | - Niels Klement
- Zernike Institute for Advanced Materials
- University of Groningen
- Groningen
- The Netherlands
| | - Andreas Herrmann
- Zernike Institute for Advanced Materials
- University of Groningen
- Groningen
- The Netherlands
| | - Itamar Willner
- Institute of Chemistry
- The Minerva Center for Biohybrid Complex Systems
- The Hebrew University of Jerusalem
- Jerusalem 91904
- Israel
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