1
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Guo TY, Li HW, Zhang CX, Wu Y. The colorimetry and smartphone determination of perfluorooctane sulfonate based on cytidine 5'-monophosphate-capped gold nanoclusters with peroxidase-like activity. Analyst 2023. [PMID: 37466370 DOI: 10.1039/d3an00763d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
Besides being a luminescent material, cytidine 5'-monophosphate-capped gold nanoclusters (AuNCs@CMP) also show superior peroxidase-like activity which can promote TMB oxidation in the presence of H2O2, causing the solution to turn efficiently from pale to blue. However, the presence of perfluorooctane sulfonate (PFOS) in the above system inhibited TMB oxidation and bluing of the solution, consequently establishing a colorimetric platform of AuNCs/H2O2/TMB for PFOS determination. The results showed that it responded to PFOS over a wide range of 2.0-50 μM, with a limit of detection (LOD) as low as 150 nM. Furthermore, in-depth mechanism investigation revealed that, rather than the active site of the catalyst being occupied by PFOS, such a hypochromatic effect originated from depletion of the reactive oxygen species (ROS) by PFOS degradation, thereby also offering a unique strategy to scavenge the lethal toxicity of PFOS. In addition, the colorimetric response of AuNCs/H2O2/TMB to PFOS was extended to smartphone determination conveniently based on RGB values. Finally, the established platform was applied to PFOS determination both in soil extracts and in tap water with good recovery, which supplies a novel colorimetric platform for visual determination of PFOS in practice. The method has the advantages of being rapid, sensitive and highly selective, which highlight the design and construction of more systems for determination and elimination of lethal pollutants in environmental water.
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Affiliation(s)
- Tian-Yuan Guo
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, No. 2699 Qianjin Street, Changchun 130012, P. R. China.
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, No. 2 Liutiao Road, Changchun 130023, P. R. China
| | - Hong-Wei Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, No. 2699 Qianjin Street, Changchun 130012, P. R. China.
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, No. 2 Liutiao Road, Changchun 130023, P. R. China
| | - Chun-Xia Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, No. 2699 Qianjin Street, Changchun 130012, P. R. China.
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, No. 2 Liutiao Road, Changchun 130023, P. R. China
| | - Yuqing Wu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, No. 2699 Qianjin Street, Changchun 130012, P. R. China.
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, No. 2 Liutiao Road, Changchun 130023, P. R. China
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2
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Strategies to improve drug penetration into tumor microenvironment by nanoparticles: focus on nanozymes. OPENNANO 2022. [DOI: 10.1016/j.onano.2022.100100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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3
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Wang T, Shan J, Wang L, Zhang X, Li G. On the kinetics of catalytic hydrogenation over Pd nanoparticles regulated by various nucleosides. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2019.02.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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4
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Hasanpour R, Feizpour F, Jafarpour M, Rezaeifard A. Nickel(ii) riboflavin complex as an efficient nanobiocatalyst for heterogeneous and sustainable oxidation of benzylic alcohols and sulfides. NEW J CHEM 2018. [DOI: 10.1039/c8nj00281a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A novel Ni(ii)Rf2 nanocomplex was prepared, which efficiently oxidizes a wide range of benzyl alcohols and sulfides by employing ideal oxidants in green reaction media.
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Affiliation(s)
- Ravak Hasanpour
- Catalysis Research Laboratory
- Department of Chemistry
- Faculty of Science
- University of Birjand
- Birjand
| | - Fahimeh Feizpour
- Catalysis Research Laboratory
- Department of Chemistry
- Faculty of Science
- University of Birjand
- Birjand
| | - Maasoumeh Jafarpour
- Catalysis Research Laboratory
- Department of Chemistry
- Faculty of Science
- University of Birjand
- Birjand
| | - Abdolreza Rezaeifard
- Catalysis Research Laboratory
- Department of Chemistry
- Faculty of Science
- University of Birjand
- Birjand
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5
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Wu W, Tang Z, Wang K, Liu Z, Li L, Chen S. Peptide templated AuPt alloyed nanoparticles as highly efficient bi-functional electrocatalysts for both oxygen reduction reaction and hydrogen evolution reaction. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2017.11.057] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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Walsh TR, Knecht MR. Biointerface Structural Effects on the Properties and Applications of Bioinspired Peptide-Based Nanomaterials. Chem Rev 2017; 117:12641-12704. [DOI: 10.1021/acs.chemrev.7b00139] [Citation(s) in RCA: 132] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Tiffany R. Walsh
- Institute
for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia
| | - Marc R. Knecht
- Department
of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
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7
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Li D, Tang Z, Chen S, Tian Y, Wang X. Peptide-FlgA3-Based Gold Palladium Bimetallic Nanoparticles That Catalyze the Oxygen Reduction Reaction in Alkaline Solution. ChemCatChem 2017. [DOI: 10.1002/cctc.201700299] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Dongliang Li
- School of Pharmacy; Guangdong Pharmaceutical University; Guangzhou 510006 P.R. China
| | - Zhenghua Tang
- New Energy Research Institute, School of Environment and Energy; South China University of Technology, Guangzhou Higher Education Mega Center; Guangzhou Guangdong 510006 P.R. China
- Guangdong Provincial Key Lab of Atmospheric, Environment and Pollution Control, Guangdong Provincial, Engineering and Technology Research Center for Environmental, Risk Prevention and Emergency Disposal; South China University of Technology, Guangzhou Higher Education Mega Centre; Guangzhou 510006 P.R. China
| | - Shaowei Chen
- New Energy Research Institute, School of Environment and Energy; South China University of Technology, Guangzhou Higher Education Mega Center; Guangzhou Guangdong 510006 P.R. China
- Department of Chemistry and Biochemistry; University of California; 1156 High Street Santa Cruz California 95064 USA
| | - Yong Tian
- School of Pharmacy; Guangdong Pharmaceutical University; Guangzhou 510006 P.R. China
| | - Xiufang Wang
- School of Pharmacy; Guangdong Pharmaceutical University; Guangzhou 510006 P.R. China
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8
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Wang W, Anderson CF, Wang Z, Wu W, Cui H, Liu CJ. Peptide-templated noble metal catalysts: syntheses and applications. Chem Sci 2017; 8:3310-3324. [PMID: 28507701 PMCID: PMC5416928 DOI: 10.1039/c7sc00069c] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 02/11/2017] [Indexed: 01/10/2023] Open
Abstract
Noble metal catalysts have been widely used in many applications because of their high activity and selectivity. However, a controllable preparation of noble metal catalysts still remains as a significant challenge. To overcome this challenge, peptide templates can play a critical role in the controllable syntheses of catalysts owing to their flexible binding with specific metallic surfaces and self-assembly characteristics. By employing peptide templates, the size, shape, facet, structure, and composition of obtained catalysts can all be specifically controlled under the mild synthesis conditions. In addition, catalysts with spherical, nanofiber, and nanofilm structures can all be produced by associating with the self-assembly characteristics of peptide templates. Furthermore, the peptide-templated noble metal catalysts also reveal significantly enhanced catalytic behaviours compared with conventional catalysts because the electron conductivity, metal dispersion, and reactive site exposure can all be improved. In this review, we summarize the research progresses in the syntheses of peptide-templated noble metal catalysts. The applications of the peptide-templated catalysts in organic reactions, photocatalysis, and electrocatalysis are discussed, and the relationship between structure and activity of these catalysts are addressed. Future opportunities, including new catalytic materials designed by using biological principles, are indicated to achieve selective, eco-friendly, and energy neutral synthesis approaches.
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Affiliation(s)
- Wei Wang
- Tianjin Co-Innovation Center of Chemical Science & Engineering , School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , China .
- International Joint Research Centre for Catalytic Technology , Key Laboratory of Chemical Engineering Process & Technology for High-Efficiency Conversion , School of Chemistry and Material Science , Heilongjiang University , Harbin 150080 , China
| | - Caleb F Anderson
- Department of Chemical and Biomolecular Engineering , Institute for NanoBioTechnology , Johns Hopkins University , Baltimore , MD 21218 , USA
| | - Zongyuan Wang
- Tianjin Co-Innovation Center of Chemical Science & Engineering , School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , China .
| | - Wei Wu
- International Joint Research Centre for Catalytic Technology , Key Laboratory of Chemical Engineering Process & Technology for High-Efficiency Conversion , School of Chemistry and Material Science , Heilongjiang University , Harbin 150080 , China
| | - Honggang Cui
- Department of Chemical and Biomolecular Engineering , Institute for NanoBioTechnology , Johns Hopkins University , Baltimore , MD 21218 , USA
| | - Chang-Jun Liu
- Tianjin Co-Innovation Center of Chemical Science & Engineering , School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , China .
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9
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Hughes ZE, Nguyen MA, Li Y, Swihart MT, Walsh TR, Knecht MR. Elucidating the influence of materials-binding peptide sequence on Au surface interactions and colloidal stability of Au nanoparticles. NANOSCALE 2017; 9:421-432. [PMID: 27929192 DOI: 10.1039/c6nr07890g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Peptide-mediated synthesis and assembly of nanostructures opens new routes to functional inorganic/organic hybrid materials. However, understanding of the many factors that influence the interaction of biomolecules, specifically peptides, with metal surfaces remains limited. Understanding of the relationship between peptide sequence and resulting binding affinity and configurations would allow predictive design of peptides to achieve desired peptide/metal interface characteristics. Here, we measured the kinetics and thermodynamics of binding on a Au surface for a series of peptide sequences designed to probe specific sequence and context effects. For example, context effects were explored by making the same mutation at different positions in the peptide and by rearranging the peptide sequence without changing the amino acid content. The degree of peptide-surface contact, predicted from advanced molecular simulations of the surface-adsorbed structures, was consistent with the measured binding constants. In simulations, the ensemble of peptide backbone conformations showed little change with point mutations of the anchor residues that dominate interaction with the surface. Peptide-capped Au nanoparticles were produced using each sequence. Comparison of simulations with nanoparticle synthesis results revealed a correlation between the colloidal stability of the Au nanoparticles and the degree of structural disorder in the surface-adsorbed peptide structures for this family of sequences. These findings suggest new directions in the optimization and design of biomolecules for in situ peptide-based nanoparticle growth, binding, and dispersion in aqueous media.
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Affiliation(s)
- Zak E Hughes
- Institute for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia.
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10
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Lawrence RL, Scola B, Li Y, Lim CK, Liu Y, Prasad PN, Swihart MT, Knecht MR. Remote Optically Controlled Modulation of Catalytic Properties of Nanoparticles through Reconfiguration of the Inorganic/Organic Interface. ACS NANO 2016; 10:9470-9477. [PMID: 27666415 DOI: 10.1021/acsnano.6b04555] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We introduce here a concept of remote photoinitiated reconfiguration of ligands adsorbed onto a nanocatalyst surface to enable reversible modulation of the catalytic activity. This is demonstrated by using peptide-ligand-capped Au nanoparticles with a photoswitchable azobenzene unit integrated into the biomolecular ligand. Optical switching of the azobenzene isomerization state drives rearrangement of the ligand layer, substantially changing the accessibility and subsequent catalytic activity of the underlying metal surface. The catalytic activity was probed using 4-nitrophenol reduction as a model reaction, where both the position of the photoswitch in the peptide sequence and its isomerization state affected the catalytic activity of the nanoparticles. Reversible switching of the isomerization state produces reversible changes in catalytic activity via reconfiguration of the biomolecular overlayer. These results provide a pathway to catalytic materials whose activity can be remotely modulated, which could be important for multistep chemical transformations that can be accessed via nanoparticle-based catalytic systems.
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Affiliation(s)
- Randy L Lawrence
- Department of Chemistry, University of Miami , 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Billy Scola
- Department of Chemistry, University of Miami , 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | | | | | | | | | | | - Marc R Knecht
- Department of Chemistry, University of Miami , 1301 Memorial Drive, Coral Gables, Florida 33146, United States
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11
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Chen JLY, Pezzato C, Scrimin P, Prins LJ. Chiral Nanozymes-Gold Nanoparticle-Based Transphosphorylation Catalysts Capable of Enantiomeric Discrimination. Chemistry 2016; 22:7028-32. [PMID: 26919202 DOI: 10.1002/chem.201600853] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Indexed: 11/08/2022]
Abstract
Enantioselectivity in RNA cleavage by a synthetic metalloenzyme has been demonstrated for the first time. Thiols containing chiral Zn(II) -binding head groups have been self-assembled on the surface of gold nanoparticles. This results in the spontaneous formation of chiral bimetallic catalytic sites that display different activities (kcat ) towards the enantiomers of an RNA model substrate. Substrate selectivity is observed when the nanozyme is applied to the cleavage of the dinucleotides UpU, GpG, ApA, and CpC, and remarkable differences in reactivity are observed for the cleavage of the enantiomerically pure dinucleotide UpU.
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Affiliation(s)
- Jack L-Y Chen
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Cristian Pezzato
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Paolo Scrimin
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Leonard J Prins
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131, Padova, Italy.
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12
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Zhang XZ, Zhou Y, Zhang W, Zhang Y, Gu N. Polystyrene@Au@prussian blue nanocomposites with enzyme-like activity and their application in glucose detection. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2015.11.035] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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13
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Liu Y, Purich DL, Wu C, Wu Y, Chen T, Cui C, Zhang L, Cansiz S, Hou W, Wang Y, Yang S, Tan W. Ionic Functionalization of Hydrophobic Colloidal Nanoparticles To Form Ionic Nanoparticles with Enzymelike Properties. J Am Chem Soc 2015; 137:14952-8. [PMID: 26562739 PMCID: PMC4898269 DOI: 10.1021/jacs.5b08533] [Citation(s) in RCA: 111] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
![]()
Inorganic colloidal nanoparticles
(NPs) stabilized by a layer of
hydrophobic surfactant on their surfaces have poor solubility in the
aqueous phase, thus limiting their application as biosensors under
physiological conditions. Here we report a simple model to ionize
various types of hydrophobic colloidal NPs, including FePt, cubic
Fe3O4, Pd, CdSe, and NaYF4 (Yb 30%,
Er 2%, Nd 1%) NPs, to multicharged (positive and negative) NPs via
ligand exchange. Surfaces of neutral hydrophobic NPs were converted
to multicharged ions, thus making them soluble in water. Furthermore,
peroxidase-like activity was observed for ionic FePt, Fe3O4, Pd, and CdSe NPs, of which FePt and CdSe catalyzed
the oxidation of the colorless substrate 3,3′,5,5′-tetramethylbenzidine
(TMB) to the blue-colored product in the absence of H2O2, while Pd and Fe3O4 catalyzed the oxidization
of TMB in the presence of H2O2. With the benefit
of the ionic functionalization protocols described herein, colloidal
NPs should gain wider use as biomarkers, nanozymes, and biosensors.
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Affiliation(s)
- Yuan Liu
- Center for Research at Bio/Nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida , Gainesville, Florida 32611-7200, United States
| | - Daniel L Purich
- Department of Biochemistry and Molecular Biology, College of Medicine, University of Florida , Gainesville, Florida 32610-0245, United States
| | - Cuichen Wu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering and College of Biology, and Collaborative Research Center of Molecular Engineering for Theranostics, Hunan University , Changsha, 410082, China
| | - Yuan Wu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering and College of Biology, and Collaborative Research Center of Molecular Engineering for Theranostics, Hunan University , Changsha, 410082, China
| | - Tao Chen
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering and College of Biology, and Collaborative Research Center of Molecular Engineering for Theranostics, Hunan University , Changsha, 410082, China
| | - Cheng Cui
- Center for Research at Bio/Nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida , Gainesville, Florida 32611-7200, United States
| | - Liqin Zhang
- Center for Research at Bio/Nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida , Gainesville, Florida 32611-7200, United States
| | - Sena Cansiz
- Center for Research at Bio/Nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida , Gainesville, Florida 32611-7200, United States
| | - Weijia Hou
- Center for Research at Bio/Nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida , Gainesville, Florida 32611-7200, United States
| | - Yanyue Wang
- Center for Research at Bio/Nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida , Gainesville, Florida 32611-7200, United States
| | - Shengyuan Yang
- Center for Research at Bio/Nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida , Gainesville, Florida 32611-7200, United States
| | - Weihong Tan
- Center for Research at Bio/Nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida , Gainesville, Florida 32611-7200, United States.,Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering and College of Biology, and Collaborative Research Center of Molecular Engineering for Theranostics, Hunan University , Changsha, 410082, China
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14
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Briggs BD, Li Y, Swihart MT, Knecht MR. Reductant and sequence effects on the morphology and catalytic activity of peptide-capped Au nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2015; 7:8843-8851. [PMID: 25839335 DOI: 10.1021/acsami.5b01461] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The use of peptides as capping ligands for materials synthesis has been widely explored. The ambient conditions of bio-inspired syntheses using molecules such as peptides represent an attractive route for controlling the morphology and activity of nanomaterials. Although various reductants can be used in such syntheses, no comprehensive comparison of the same bio-based ligand with different reductants has been reported. In this contribution, peptides AuBP1, AuBP2, and Pd4 are used in the synthesis of Au nanoparticles. The reductant strength is varied by using three different reducing agents: NaBH4, hydrazine, and ascorbic acid. These changes in reductant produce significant morphological differences in the final particles. The weakest reductant, ascorbic acid, yields large, globular nanoparticles with rough surfaces, whereas the strongest reductant, NaBH4, yields small, spherical, smooth nanomaterials. Studies of 4-nitrophenol reduction using the Au nanoparticles as catalysts reveal a decrease in activation energy for the large, globular, rough materials relative to the small, spherical, smooth materials. These studies demonstrate that modifying the reductant is a simple way to control the activity of peptide-capped nanoparticles.
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Affiliation(s)
- Beverly D Briggs
- †Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Yue Li
- ‡Department of Chemical and Biological Engineering, University at Buffalo (SUNY), Buffalo, New York 14260, United States
| | - Mark T Swihart
- ‡Department of Chemical and Biological Engineering, University at Buffalo (SUNY), Buffalo, New York 14260, United States
| | - Marc R Knecht
- †Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
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15
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Molnár Á. Novelty in Complexity: Relationship between Small Peptides, Pd Nanoparticles, and Catalyst Characteristics. ChemCatChem 2015. [DOI: 10.1002/cctc.201500108] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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16
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Li X, Li G, Zang W, Wang L, Zhang X. Catalytic activity of shaped platinum nanoparticles for hydrogenation: a kinetic study. Catal Sci Technol 2014. [DOI: 10.1039/c4cy00580e] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Li Y, Tang Z, Prasad PN, Knecht MR, Swihart MT. Peptide-mediated synthesis of gold nanoparticles: effects of peptide sequence and nature of binding on physicochemical properties. NANOSCALE 2014; 6:3165-72. [PMID: 24496609 DOI: 10.1039/c3nr06201e] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Biomimetic nanotechnologies that use peptides to guide the growth and assembly of nanostructures offer new avenues for the creation of functional nanomaterials and manipulation of their physicochemical properties. However, the impacts of peptide sequence and binding motif upon the surface characteristics and physicochemical properties of nanoparticles remain poorly understood. The configurations of the biomolecules are expected to be extremely important for directing the synthesis and achieving desired material functionality, and these binding motifs will vary with the peptide sequence. Here, we have prepared a series of Au nanoparticles capped with a variety of materials-directing peptides with known affinity for metal surfaces. These nanomaterials were characterized by UV-vis and circular dichroism spectroscopies, transmission electron microscopy, and ζ-potential measurement. Then their catalytic activity for 4-nitrophenol reduction was analyzed. The results indicate that substantially different Au-peptide interfaces are generated using different peptide sequences, even when these sequences have similar binding affinity. This is consistent with recent work showing that Au-peptide binding affinity can have varying entropic and enthalpic contributions, with enthalpically- and entropically-driven binders exhibiting quite different ensembles of configurations on the Au surface. The catalytic activity, as reflected by the measured activation energy, did not correlate with the particle size or with the binding affinity of the peptides, suggesting that the reactivity of these materials is governed by the more subtle details of the conformation of the bound peptide and on the nanoparticle surface reconstruction as dictated by the peptide structure. Such variations in both nanoparticle surface reconstruction and peptide configuration could potentially be used to program specific functionality into the peptide-capped nanomaterials.
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Affiliation(s)
- Yue Li
- Department of Chemical and Biological Engineering, University at Buffalo (SUNY), Buffalo, NY 14260, USA.
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18
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Zahran EM, Bedford NM, Nguyen MA, Chang YJ, Guiton BS, Naik RR, Bachas LG, Knecht MR. Light-Activated Tandem Catalysis Driven by Multicomponent Nanomaterials. J Am Chem Soc 2013; 136:32-5. [DOI: 10.1021/ja410465s] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Elsayed M. Zahran
- Department
of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
| | - Nicholas M. Bedford
- Department
of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
- Materials
and
Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433, United States
| | - Michelle A. Nguyen
- Department
of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
| | - Yao-Jen Chang
- Department
of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Beth S. Guiton
- Department
of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
- Materials
Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Rajesh R. Naik
- Materials
and
Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433, United States
| | - Leonidas G. Bachas
- Department
of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
| | - Marc R. Knecht
- Department
of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
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19
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Coppage R, Slocik JM, Ramezani-Dakhel H, Bedford NM, Heinz H, Naik RR, Knecht MR. Exploiting Localized Surface Binding Effects to Enhance the Catalytic Reactivity of Peptide-Capped Nanoparticles. J Am Chem Soc 2013; 135:11048-54. [DOI: 10.1021/ja402215t] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Ryan Coppage
- Department of Chemistry, University
of Miami, Coral Gables, Florida 33146, United States
| | - Joseph M. Slocik
- Materials and Manufacturing Directorate,
Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio
45433-7702, United States
| | - Hadi Ramezani-Dakhel
- Department
of Polymer Engineering,
University of Akron, Akron, Ohio, 44325, United States
| | - Nicholas M. Bedford
- Department of Chemistry, University
of Miami, Coral Gables, Florida 33146, United States
- Materials and Manufacturing Directorate,
Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio
45433-7702, United States
| | - Hendrik Heinz
- Department
of Polymer Engineering,
University of Akron, Akron, Ohio, 44325, United States
| | - Rajesh R. Naik
- Materials and Manufacturing Directorate,
Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio
45433-7702, United States
| | - Marc R. Knecht
- Department of Chemistry, University
of Miami, Coral Gables, Florida 33146, United States
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Abstract
The relationship between protein dynamics and function is a subject of considerable contemporary interest. Although protein motions are frequently observed during ligand binding and release steps, the contribution of protein motions to the catalysis of bond making/breaking processes is more difficult to probe and verify. Here, we show how the quantum mechanical hydrogen tunneling associated with enzymatic C-H bond cleavage provides a unique window into the necessity of protein dynamics for achieving optimal catalysis. Experimental findings support a hierarchy of thermodynamically equilibrated motions that control the H-donor and -acceptor distance and active-site electrostatics, creating an ensemble of conformations suitable for H-tunneling. A possible extension of this view to methyl transfer and other catalyzed reactions is also presented. The impact of understanding these dynamics on the conceptual framework for enzyme activity, inhibitor/drug design, and biomimetic catalyst design is likely to be substantial.
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Affiliation(s)
- Judith P. Klinman
- Department of Chemistry, Department of Molecular and Cell Biology, and the California Institute for Quantitative Sciences, University of California, Berkeley, California 94720;
| | - Amnon Kohen
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242-1294;
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Wei H, Wang E. Nanomaterials with enzyme-like characteristics (nanozymes): next-generation artificial enzymes. Chem Soc Rev 2013; 42:6060-93. [DOI: 10.1039/c3cs35486e] [Citation(s) in RCA: 2267] [Impact Index Per Article: 206.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Pacardo DB, Knecht MR. Exploring the mechanism of Stille C–C coupling viapeptide-capped Pd nanoparticles results in low temperature reagent selectivity. Catal Sci Technol 2013. [DOI: 10.1039/c2cy20636f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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