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Subhash B, Unocic RR, Lie WH, Gallington LC, Wright J, Cheong S, Tilley RD, Bedford NM. Resolving Atomic-Scale Structure and Chemical Coordination in High-Entropy Alloy Electrocatalysts for Structure-Function Relationship Elucidation. ACS NANO 2023; 17:22299-22312. [PMID: 37944052 DOI: 10.1021/acsnano.3c03884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
The recent breakthrough in confining five or more atomic species in nanocatalysts, referred to as high-entropy alloy nanocatalysts (HEAs), has revealed the possibilities of multielemental interactions that can surpass the limitations of binary and ternary electrocatalysts. The wide range of potential surface configurations in HEAs, however, presents a significant challenge in resolving active structural motifs, preventing the establishment of structure-function relationships for rational catalyst design and optimization. We present a methodology for creating sub-5 nm HEAs using an aqueous-based peptide-directed route. Using a combination of pair distribution function and X-ray absorption spectroscopy, HEA structure models are constructed from reverse Monte Carlo modeling of experimental data sets and showcase a clear peptide-induced influence on atomic-structure and chemical miscibility. Coordination analysis of our structure models facilitated the construction of structure-function correlations applied to electrochemical methanol oxidation reactions, revealing the complex interplay between multiple metals that leads to improved catalytic properties. Our results showcase a viable strategy for elucidating structure-function relationships in HEAs, prospectively providing a pathway for future materials design.
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Affiliation(s)
- Bijil Subhash
- School of Chemical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Raymond R Unocic
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - William Hadinata Lie
- School of Chemical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Leighanne C Gallington
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Joshua Wright
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, United States
| | - Soshan Cheong
- Mark Wainwright Analytical Centre, University of New South Wales, Sydney, NSW 2052, Australia
| | - Richard D Tilley
- Mark Wainwright Analytical Centre, University of New South Wales, Sydney, NSW 2052, Australia
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Nicholas M Bedford
- School of Chemical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
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2
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Lobo K, Gangaiah VK, Alex C, John NS, Ramakrishna Matte HSS. Spontaneous Decoration of Ultrasmall Pt Nanoparticles on Size-Separated MoS 2 Nanosheets. Chemistry 2023; 29:e202301596. [PMID: 37497808 DOI: 10.1002/chem.202301596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 07/23/2023] [Accepted: 07/23/2023] [Indexed: 07/28/2023]
Abstract
Liquid exfoliation can be considered as a viable approach for the scalable production of 2D materials due to its various benefits, although the polydispersity in the obtained nanosheet size hinders their straightforward incorporation. Size-separation can help alleviate these concerns, however a correlation between nanosheet size and property needs to be established to bring about size-specific applicability. Herein, size-selected aqueous nanosheet dispersions have been obtained via centrifugation-based protocols, and their chemical activity in the spontaneous reduction of chloroplatinic acid is investigated. Growth of ultrasmall Pt nanoparticles was achieved on nanosheet surfaces without a need for reducing agents, and stark differences in the nanoparticle coverage were observed as a function of nanosheet size. Defects in the nanosheets were probed via Raman spectroscopy, and correlated to the observed size-activity. Additionally, the effect of reaction temperature during synthesis was investigated. The electrochemical activity of the ultrasmall Pt nanoparticle decorated MoS2 nanosheets was evaluated for the hydrogen evolution reaction, and enhancement in performance was observed with nanosheet size, and nanoparticle decoration density. These findings shine light on the significance of nanosheet size in controlling spontaneous reduction reactions, and provide a deeper insight to intrinsic properties of liquid exfoliated nanosheets.
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Affiliation(s)
- Kenneth Lobo
- Energy Materials Laboratory, Centre for Nano and Soft Matter Sciences, Arkavathi campus, Survey No.7, Shivanapura, Dasanapura Hobli, Bengaluru, 562162, India
- Centre for Nano and Soft Matter Sciences, Arkavathi campus, Survey No.7, Shivanapura, Dasanapura Hobli, Bengaluru, 562162, India
- Manipal Academy of Higher Education, Manipal, 576 104, India
| | - Vijaya Kumar Gangaiah
- Energy Materials Laboratory, Centre for Nano and Soft Matter Sciences, Arkavathi campus, Survey No.7, Shivanapura, Dasanapura Hobli, Bengaluru, 562162, India
- Centre for Nano and Soft Matter Sciences, Arkavathi campus, Survey No.7, Shivanapura, Dasanapura Hobli, Bengaluru, 562162, India
| | - Chandraraj Alex
- Centre for Nano and Soft Matter Sciences, Arkavathi campus, Survey No.7, Shivanapura, Dasanapura Hobli, Bengaluru, 562162, India
| | - Neena S John
- Centre for Nano and Soft Matter Sciences, Arkavathi campus, Survey No.7, Shivanapura, Dasanapura Hobli, Bengaluru, 562162, India
| | - H S S Ramakrishna Matte
- Energy Materials Laboratory, Centre for Nano and Soft Matter Sciences, Arkavathi campus, Survey No.7, Shivanapura, Dasanapura Hobli, Bengaluru, 562162, India
- Centre for Nano and Soft Matter Sciences, Arkavathi campus, Survey No.7, Shivanapura, Dasanapura Hobli, Bengaluru, 562162, India
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3
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Li Q, Wang Y, Zhang G, Su R, Qi W. Biomimetic mineralization based on self-assembling peptides. Chem Soc Rev 2023; 52:1549-1590. [PMID: 36602188 DOI: 10.1039/d2cs00725h] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Biomimetic science has attracted great interest in the fields of chemistry, biology, materials science, and energy. Biomimetic mineralization is the process of synthesizing inorganic minerals under the control of organic molecules or biomolecules under mild conditions. Peptides are the motifs that constitute proteins, and can self-assemble into various hierarchical structures and show a high affinity for inorganic substances. Therefore, peptides can be used as building blocks for the synthesis of functional biomimetic materials. With the participation of peptides, the morphology, size, and composition of mineralized materials can be controlled precisely. Peptides not only provide well-defined templates for the nucleation and growth of inorganic nanomaterials but also have the potential to confer inorganic nanomaterials with high catalytic efficiency, selectivity, and biotherapeutic functions. In this review, we systematically summarize research progress in the formation mechanism, nanostructural manipulation, and applications of peptide-templated mineralized materials. These can further inspire researchers to design structurally complex and functionalized biomimetic materials with great promising applications.
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Affiliation(s)
- Qing Li
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China.
| | - Yuefei Wang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China. .,Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Gong Zhang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China. .,State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou Industrial Park, Suzhou 215123, P. R. China
| | - Rongxin Su
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China. .,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China.,Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Wei Qi
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China. .,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China.,Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300072, P. R. China
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4
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Zhang S, Chen J, Liu J, Pyles H, Baker D, Chen CL, De Yoreo JJ. Engineering Biomolecular Self-Assembly at Solid-Liquid Interfaces. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e1905784. [PMID: 32627885 DOI: 10.1002/adma.201905784] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 04/02/2020] [Accepted: 04/16/2020] [Indexed: 06/11/2023]
Abstract
Biomolecular self-assembly is a key process used by life to build functional materials from the "bottom up." In the last few decades, bioengineering and bionanotechnology have borrowed this strategy to design and synthesize numerous biomolecular and hybrid materials with diverse architectures and properties. However, engineering biomolecular self-assembly at solid-liquid interfaces into predesigned architectures lags the progress made in bulk solution both in practice and theory. Here, recent achievements in programming self-assembly of peptides, proteins, and peptoids at solid-liquid interfaces are summarized and corresponding applications are described. Recent advances in the physical understandings of self-assembly pathways obtained using in situ atomic force microscopy are also discussed. These advances will lead to novel strategies for designing biomaterials organized at and interfaced with inorganic surfaces.
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Affiliation(s)
- Shuai Zhang
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98105, USA
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, 99352, USA
| | - Jiajun Chen
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98105, USA
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, 99352, USA
| | - Jianli Liu
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, 99352, USA
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523830, China
| | - Harley Pyles
- Department of Biochemistry, University of Washington, Seattle, WA, 98195, USA
- Institute for Protein Design, University of Washington, Seattle, WA, 98195, USA
| | - David Baker
- Department of Biochemistry, University of Washington, Seattle, WA, 98195, USA
- Institute for Protein Design, University of Washington, Seattle, WA, 98195, USA
- Howard Hughes Medical Institute, University of Washington, Seattle, WA, 98195, USA
| | - Chun-Long Chen
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, 99352, USA
- Department of Chemical Engineering, University of Washington, Seattle, WA, 98195, USA
| | - James J De Yoreo
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98105, USA
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, 99352, USA
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5
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Ma Z, Zhang Y, Zhang J, Zhang W, Foda MF, Dai X, Han H. Ultrasmall Peptide-Coated Platinum Nanoparticles for Precise NIR-II Photothermal Therapy by Mitochondrial Targeting. ACS APPLIED MATERIALS & INTERFACES 2020; 12:39434-39443. [PMID: 32805937 DOI: 10.1021/acsami.0c11469] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Photothermal therapy (PTT) is considered an alternative for oncotherapy because it has less invasive damage to normal tissues than other methods, particularly in second near-infrared (NIR-II) PTT (1000-1350 nm) because of deeper biological tissue penetration, lower photon scattering, and higher maximum permissible exposure (1.0 W cm-2). However, for achieving a higher therapeutic effect, the delivery of large amounts of NIR-sensitive agents has been pursued, which in turn enormously increases damage to normal cells. Herein, we developed peptide-coated platinum nanoparticles (TPP-Pt) to create violent damage for a given amount of hyperthermia by purposefully delivering TPP-Pt to the thermally susceptible mitochondria with minimal side effects. Mitochondrial peptide targeting endowed ultrasmall platinum nanoparticles (PtNPs) with monodispersity, high stability, biosafety, and enhanced uptake of cancer cells and priority of mitochondria, causing efficient PTT. Moreover, an in vivo experiment showed that the excellent tumor inhibitory effect and negligible side effects could be achieved with the preferentially striking thermosensitive mitochondria strategy. The mitochondria-based "win by one move" therapeutic platform of peptide-coated platinum nanoparticles (TPP-Pt) demonstrated here will find great potential to overcome the challenges of low therapeutic efficiency and strong systemic side effects in PTT.
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Affiliation(s)
- Zhaoyu Ma
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yifan Zhang
- State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, Wuhan 430070, China
| | - Jin Zhang
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Weiyun Zhang
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Mohamed F Foda
- State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, Wuhan 430070, China
- Department of Biochemistry Faculty of Agriculture, Benha University, Moshtohor, Toukh 13736, Egypt
| | - Xinxin Dai
- State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, Wuhan 430070, China
| | - Heyou Han
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, Wuhan 430070, China
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6
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Pramounmat N, Loney CN, Kim C, Wiles L, Ayers KE, Kusoglu A, Renner JN. Controlling the Distribution of Perfluorinated Sulfonic Acid Ionomer with Elastin-like Polypeptide. ACS APPLIED MATERIALS & INTERFACES 2019; 11:43649-43658. [PMID: 31644259 DOI: 10.1021/acsami.9b11160] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Proton-exchange-membrane (PEM)-based devices are promising technologies for hydrogen production and electricity generation. Currently, the amount of expensive platinum catalyst used in these devices must be reduced to be cost-competitive with other technologies. These devices typically contain Nafion ionomer thin films in the catalyst layers, which are responsible for transporting protons and gaseous species to and from electrochemically active sites. The morphology of the Nafion ionomer thin films in the catalyst layers with reduced platinum loading is impacted by interactions with the catalyst and the confinement to nanometer thicknesses, which leads to performance losses in PEM-based devices. In this study, an elastin-like polypeptide (ELP) is designed to modulate the morphology of Nafion ionomer on platinum surfaces. The ELP shows an ability to assemble into a monolayer on platinum and change the ionomer interaction with platinum, thereby modifying its thin-film structure and improving the Nafion ionomer coverage. As a proof of concept, an ELP-modified catalyst ink was prepared and morphological differences were observed. Overall, we discovered an engineered ELP that can modulate the ionomer-catalyst interface in the electrodes of PEM-based devices.
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Affiliation(s)
- Nuttanit Pramounmat
- Department of Chemical and Biomolecular Engineering , Case Western Reserve University , Cleveland , Ohio 44106 , United States
| | - Charles N Loney
- Department of Chemical and Biomolecular Engineering , Case Western Reserve University , Cleveland , Ohio 44106 , United States
| | - ChulOong Kim
- Department of Chemical and Biomolecular Engineering , Case Western Reserve University , Cleveland , Ohio 44106 , United States
| | - Luke Wiles
- Nel Hydrogen Inc. , 10 Technology Drive , Wallingford , Connecticut 06492 , United States
| | - Katherine E Ayers
- Nel Hydrogen Inc. , 10 Technology Drive , Wallingford , Connecticut 06492 , United States
| | - Ahmet Kusoglu
- Energy Conversion Group, Energy Technologies Area , Lawrence Berkeley National Laboratory , 1 Cyclotron Road, MS70-108B , Berkeley , California 94720 , United States
| | - Julie N Renner
- Department of Chemical and Biomolecular Engineering , Case Western Reserve University , Cleveland , Ohio 44106 , United States
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7
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8
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Wang J, Zhang L, Yang J, Yan H, Li X, Wang C, Wang D, Sun Y, Xu H. Platinum-Ion-Mediated Self-Assembly of Hairpin Peptides and Synthesis of Platinum Nanostructures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:5617-5625. [PMID: 30942585 DOI: 10.1021/acs.langmuir.9b00265] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Nanostructures and nanomaterials based on peptide self-assembly have attracted tremendous interests due to the functionalities of peptide molecules. Furthermore, the self-assembled peptide nanostructures are also adopted to fabricate nanomaterials and nanodevices. In this work, the intramolecular folding and self-assembly of a β-hairpin peptide CBHH were first studied under the regulation of platinum ion. And then, platinum nanostructures were synthesized through the reduction of platinum ions templated with peptide self-assemblies. The results of circular dichroism spectroscopy, UV-vis spectroscopy, isothermal titration calorimetry, and atomic force microscopy observation showed that platinum ions could promote the conversion of peptide CBHH secondary structure from a random coil to a β-sheet through coordination with histidine residues. Platinum nanostructures including nanorods and one dimensionally aligned nanorods were synthesized through in situ reduction with CBHH self-assembled nanofiber as the templates. And the synthesized platinum nanostructures showed excellent electrocatalytic activities.
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Affiliation(s)
- Jiqian Wang
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology , China University of Petroleum (East China) , 66 Changjiang West Road , Qingdao 266580 , China
| | - Liyan Zhang
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology , China University of Petroleum (East China) , 66 Changjiang West Road , Qingdao 266580 , China
| | - Jingge Yang
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology , China University of Petroleum (East China) , 66 Changjiang West Road , Qingdao 266580 , China
| | - Hongyu Yan
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology , China University of Petroleum (East China) , 66 Changjiang West Road , Qingdao 266580 , China
| | - Xiran Li
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology , China University of Petroleum (East China) , 66 Changjiang West Road , Qingdao 266580 , China
| | - Chengdong Wang
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology , China University of Petroleum (East China) , 66 Changjiang West Road , Qingdao 266580 , China
| | - Dong Wang
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology , China University of Petroleum (East China) , 66 Changjiang West Road , Qingdao 266580 , China
| | - Yawei Sun
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology , China University of Petroleum (East China) , 66 Changjiang West Road , Qingdao 266580 , China
| | - Hai Xu
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology , China University of Petroleum (East China) , 66 Changjiang West Road , Qingdao 266580 , China
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9
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Shoshan MS, Vonderach T, Hattendorf B, Wennemers H. Peptide‐Coated Platinum Nanoparticles with Selective Toxicity against Liver Cancer Cells. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201813149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Michal S. Shoshan
- Laboratory of Organic Chemistry, D-CHABETH Zurich Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
| | - Thomas Vonderach
- Laboratory of Inorganic Chemistry, D-CHABETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - Bodo Hattendorf
- Laboratory of Inorganic Chemistry, D-CHABETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - Helma Wennemers
- Laboratory of Organic Chemistry, D-CHABETH Zurich Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
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10
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Shoshan MS, Vonderach T, Hattendorf B, Wennemers H. Peptide‐Coated Platinum Nanoparticles with Selective Toxicity against Liver Cancer Cells. Angew Chem Int Ed Engl 2019; 58:4901-4905. [DOI: 10.1002/anie.201813149] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Michal S. Shoshan
- Laboratory of Organic Chemistry, D-CHABETH Zurich Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
| | - Thomas Vonderach
- Laboratory of Inorganic Chemistry, D-CHABETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - Bodo Hattendorf
- Laboratory of Inorganic Chemistry, D-CHABETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - Helma Wennemers
- Laboratory of Organic Chemistry, D-CHABETH Zurich Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
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11
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Wang Q, Wang S, Hu X, Li F, Ling D. Controlled synthesis and assembly of ultra-small nanoclusters for biomedical applications. Biomater Sci 2019; 7:480-489. [DOI: 10.1039/c8bm01200h] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This Minireview summarizes recent advances in the controlled synthesis, assembly, and biomedical applications of ultra-small nanoclusters.
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Affiliation(s)
- Qiyue Wang
- Institute of Pharmaceutics
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058
- China
| | - Shuying Wang
- Institute of Pharmaceutics
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058
- China
| | - Xi Hu
- Institute of Pharmaceutics
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058
- China
| | - Fangyuan Li
- Institute of Pharmaceutics
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058
- China
| | - Daishun Ling
- Institute of Pharmaceutics
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058
- China
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12
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Molaabasi F, Sarparast M, Shamsipur M, Irannejad L, Moosavi-Movahedi AA, Ravandi A, Hajipour Verdom B, Ghazfar R. Shape-Controlled Synthesis of Luminescent Hemoglobin Capped Hollow Porous Platinum Nanoclusters and their Application to Catalytic Oxygen Reduction and Cancer Imaging. Sci Rep 2018; 8:14507. [PMID: 30267025 PMCID: PMC6162304 DOI: 10.1038/s41598-018-32918-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 09/18/2018] [Indexed: 12/19/2022] Open
Abstract
Engineering hollow and porous platinum nanostructures using biomolecular templates is currently a significant focus for the enhancement of their facet-dependent optical, electronic, and electrocatalytic properties. However, remains a formidable challenge due to lack of appropriate biomolecules to have a structure-function relationship with nanocrystal facet development. Herein, human hemoglobin found to have facet-binding abilities that can control the morphology and optical properties of the platinum nanoclusters (Pt NCs) by regulation of the growth kinetics in alkaline media. Observations revealed the growth of unusual polyhedra by shape-directed nanocluster attachment along a certain orientation accompanied by Ostwald ripening and, in turn, yield well-dispersed hollow single-crystal nanotetrahedrons, which can easily self-aggregated and crystallized into porous and polycrystalline microspheres. The spontaneous, biobased organization of Pt NCs allow the intrinsic aggregation-induced emission (AIE) features in terms of the platinophilic interactions between Pt(II)-Hb complexes on the Pt(0) cores, thereby controlling the degree of aggregation and the luminescent intensity of Pt(0)@Pt(II)−Hb core−shell NCs. The Hb-Pt NCs exhibited high-performance electrocatalytic oxygen reduction providing a fundamental basis for outstanding catalytic enhancement of Hb-Pt catalysts based on morphology dependent and active site concentration for the four-electron reduction of oxygen. The as-prepared Hb-Pt NCs also exhibited high potential to use in cellular labeling and imaging thanks to the excellent photostability, chemical stability, and low cytotoxicity.
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Affiliation(s)
- Fatemeh Molaabasi
- Department of Biomaterials and Tissue Engineering, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran. .,Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, Tehran, 14115-175, Iran.
| | - Morteza Sarparast
- Department of Chemistry, Michigan State University, East Lansing, Michigan, 48824-1322, United States
| | - Mojtaba Shamsipur
- Department of Chemistry, Faculty of Basic Sciences, Razi University, Kermanshah, Iran.
| | - Leila Irannejad
- Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, Tehran, 14115-175, Iran
| | | | - Abouzar Ravandi
- Department of Chemistry, Faculty of Basic Sciences, Sharif University of Technology, Tehran, Iran
| | - Behnam Hajipour Verdom
- Department of Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, 14115-154, Iran
| | - Reza Ghazfar
- Department of Chemistry, Michigan State University, East Lansing, Michigan, 48824-1322, United States
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13
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Ma C, Yuan C, Cao P. A Facile Method to Prepare a Hydrophilic/Hydrophobic Metal Surface by Peptide. MATERIALS (BASEL, SWITZERLAND) 2018; 11:ma11081289. [PMID: 30046023 PMCID: PMC6117720 DOI: 10.3390/ma11081289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 07/20/2018] [Accepted: 07/21/2018] [Indexed: 06/08/2023]
Abstract
A facile method to prepare a hydrophilic/hydrophobic metal surface by metal-binding peptide was proposed in this article. Metal-binding peptide sequenced NLNPNTASAMHV was taken as the target peptide to interact with stainless steel. The surface morphology, roughness and Fourier-Transform Infrared spectroscopy (FTIR) showed that some changes occurred on the modified stainless steel surface. Not only were the surfaces coarser but also some organic groups appeared on the modified sample surfaces. By comparing the CAs of all the samples, the most suitable concentration of peptide and treating time were determined. A new and facile way to endow some metals surfaces with hydrophobicity or hydrophilicity has been developed, which is useful especially for antibiofouling.
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Affiliation(s)
- Chunying Ma
- School of Energy and Power Engineering, Wuhan University of Technology, Wuhan 430063, China.
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang 330013, China.
| | - Chengqing Yuan
- School of Energy and Power Engineering, Wuhan University of Technology, Wuhan 430063, China.
| | - Pan Cao
- School of Energy and Power Engineering, Wuhan University of Technology, Wuhan 430063, China.
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Fan G, Dundas CM, Zhang C, Lynd NA, Keitz BK. Sequence-Dependent Peptide Surface Functionalization of Metal-Organic Frameworks. ACS APPLIED MATERIALS & INTERFACES 2018; 10:18601-18609. [PMID: 29762004 DOI: 10.1021/acsami.8b05148] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We report a noncovalent surface functionalization technique for water-stable metal-organic frameworks using short peptide sequences identified via phage display. Specific frameworks-binding peptides were identified for crystalline Zn(MeIM)2 (MeIM: 2-methylimidazole, ZIF-8), semiamorphous Fe-BTC (BTC: 1,3,5-benzene-tricarboxylate), and Al(OH)(C4H2O4) (MIL-53(Al)-FA, FA: fumaric acid), and their thermodynamic binding affinities and specificities were measured. Electron microscopy, powder X-ray diffraction, and gas adsorption analysis confirmed that the peptide-functionalized frameworks retained similar characteristics compared to their as-synthesized counterparts. Confocal laser-scanning microscopy demonstrated that peptide was localized on the surface of the frameworks, whereas surface area measurements showed no evidence of pore blockage. Finally, we measured the pH-dependent release of fluorescein from peptide-functionalized frameworks and discovered that peptide binding can attenuate fluorescein release by improving framework stability under low pH conditions. Our results demonstrate that phage display can be used as a general method to identify specific peptide sequences with strong binding affinity to water-stable metal-organic frameworks and that these peptides can alter drug release kinetics by affecting framework stability in aqueous environments.
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15
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Chakraborty I, Feliu N, Roy S, Dawson K, Parak WJ. Protein-Mediated Shape Control of Silver Nanoparticles. Bioconjug Chem 2018; 29:1261-1265. [DOI: 10.1021/acs.bioconjchem.8b00034] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Indranath Chakraborty
- Fachbereich Physik, Philipps Universität Marburg, 35037 Marburg, Germany
- Fachbereich Physik und Chemie, and Center for Hybrid Nanostructure (CHyN), Universität Hamburg, 22761 Hamburg, Germany
| | - Neus Feliu
- Fachbereich Physik und Chemie, and Center for Hybrid Nanostructure (CHyN), Universität Hamburg, 22761 Hamburg, Germany
- Department of Laboratory Medicine (LABMED), Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Sathi Roy
- Fachbereich Physik, Philipps Universität Marburg, 35037 Marburg, Germany
- Fachbereich Physik und Chemie, and Center for Hybrid Nanostructure (CHyN), Universität Hamburg, 22761 Hamburg, Germany
| | - Kenneth Dawson
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Dublin 4, Ireland
| | - Wolfgang J. Parak
- Fachbereich Physik, Philipps Universität Marburg, 35037 Marburg, Germany
- Fachbereich Physik und Chemie, and Center for Hybrid Nanostructure (CHyN), Universität Hamburg, 22761 Hamburg, Germany
- CIC Biomagune, 20014 San Sebastian, Spain
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16
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Yagi S, Akanuma S, Kaji A, Niiro H, Akiyama H, Uchida T, Yamagishi A. Selection of a platinum-binding sequence in a loop of a four-helix bundle protein. J Biosci Bioeng 2017; 125:192-198. [PMID: 29050803 DOI: 10.1016/j.jbiosc.2017.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 09/01/2017] [Accepted: 09/20/2017] [Indexed: 10/18/2022]
Abstract
Protein-metal hybrids are functional materials with various industrial applications. For example, a redox enzyme immobilized on a platinum electrode is a key component of some biofuel cells and biosensors. To create these hybrid materials, protein molecules are bound to metal surfaces. Here, we report the selection of a novel platinum-binding sequence in a loop of a four-helix bundle protein, the Lac repressor four-helix protein (LARFH), an artificial protein in which four identical α-helices are connected via three identical loops. We created a genetic library in which the Ser-Gly-Gln-Gly-Gly-Ser sequence within the first inter-helical loop of LARFH was semi-randomly mutated. The library was then subjected to selection for platinum-binding affinity by using the T7 phage display method. The majority of the selected variants contained the Tyr-Lys-Arg-Gly-Tyr-Lys (YKRGYK) sequence in their randomized segment. We characterized the platinum-binding properties of mutant LARFH by using quartz crystal microbalance analysis. Mutant LARFH seemed to interact with platinum through its loop containing the YKRGYK sequence, as judged by the estimated exclusive area occupied by a single molecule. Furthermore, a 10-residue peptide containing the YKRGYK sequence bound to platinum with reasonably high affinity and basic side chains in the peptide were crucial in mediating this interaction. In conclusion, we have identified an amino acid sequence, YKRGYK, in the loop of a helix-loop-helix motif that shows high platinum-binding affinity. This sequence could be grafted into loops of other polypeptides as an approach to immobilize proteins on platinum electrodes for use as biosensors among other applications.
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Affiliation(s)
- Sota Yagi
- Department of Applied Life Science, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Satoshi Akanuma
- Faculty of Human Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa, Saitama 359-1192, Japan
| | - Asumi Kaji
- Department of Applied Life Science, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Hiroya Niiro
- Department of Applied Life Science, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Hayato Akiyama
- Department of Applied Life Science, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Tatsuya Uchida
- Department of Applied Life Science, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Akihiko Yamagishi
- Department of Applied Life Science, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan.
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17
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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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18
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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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19
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Wang Q, Tang Z, Wang L, Yang H, Yan W, Chen S. Morphology Control and Electro catalytic Activity towards Oxygen Reduction of Peptide-Templated Metal Nanomaterials: A Comparison between Au and Pt. ChemistrySelect 2016. [DOI: 10.1002/slct.201601362] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Qiannan Wang
- New Energy Research Institute, School of Environment and Energy; South China University of Technology, Guangzhou Higher Education Mega Centre; Guangzhou, Guangdong 510006 P. R. China
| | - Zhenghua Tang
- New Energy Research Institute, School of Environment and Energy; South China University of Technology, Guangzhou Higher Education Mega Centre; 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
| | - Likai Wang
- New Energy Research Institute, School of Environment and Energy; South China University of Technology, Guangzhou Higher Education Mega Centre; Guangzhou, Guangdong 510006 P. R. China
| | - Hongyu Yang
- New Energy Research Institute, School of Environment and Energy; South China University of Technology, Guangzhou Higher Education Mega Centre; Guangzhou, Guangdong 510006 P. R. China
| | - Wei Yan
- New Energy Research Institute, School of Environment and Energy; South China University of Technology, Guangzhou Higher Education Mega Centre; Guangzhou, Guangdong 510006 P. R. China
| | - Shaowei Chen
- New Energy Research Institute, School of Environment and Energy; South China University of Technology, Guangzhou Higher Education Mega Centre; Guangzhou, Guangdong 510006 P. R. China
- Department of Chemistry and Biochemistry; University of California; 1156 High Street Santa Cruz, California 95064 United States
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20
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Biopanning and characterization of peptides with Fe3O4 nanoparticles-binding capability via phage display random peptide library technique. Colloids Surf B Biointerfaces 2016; 141:537-545. [DOI: 10.1016/j.colsurfb.2016.01.062] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 01/29/2016] [Accepted: 01/31/2016] [Indexed: 01/31/2023]
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21
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Zan G, Wu Q. Biomimetic and Bioinspired Synthesis of Nanomaterials/Nanostructures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:2099-147. [PMID: 26729639 DOI: 10.1002/adma.201503215] [Citation(s) in RCA: 175] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 09/09/2015] [Indexed: 05/13/2023]
Abstract
In recent years, due to its unparalleled advantages, the biomimetic and bioinspired synthesis of nanomaterials/nanostructures has drawn increasing interest and attention. Generally, biomimetic synthesis can be conducted either by mimicking the functions of natural materials/structures or by mimicking the biological processes that organisms employ to produce substances or materials. Biomimetic synthesis is therefore divided here into "functional biomimetic synthesis" and "process biomimetic synthesis". Process biomimetic synthesis is the focus of this review. First, the above two terms are defined and their relationship is discussed. Next different levels of biological processes that can be used for process biomimetic synthesis are compiled. Then the current progress of process biomimetic synthesis is systematically summarized and reviewed from the following five perspectives: i) elementary biomimetic system via biomass templates, ii) high-level biomimetic system via soft/hard-combined films, iii) intelligent biomimetic systems via liquid membranes, iv) living-organism biomimetic systems, and v) macromolecular bioinspired systems. Moreover, for these five biomimetic systems, the synthesis procedures, basic principles, and relationships are discussed, and the challenges that are encountered and directions for further development are considered.
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Affiliation(s)
- Guangtao Zan
- Department of Chemistry, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, 200092, P. R. China
- School of Materials Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Qingsheng Wu
- Department of Chemistry, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, 200092, P. R. China
- School of Materials Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
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22
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Wang J, Tao K, Yang Y, Zhang L, Wang D, Cao M, Sun Y, Xia D. Short peptide mediated self-assembly of platinum nanocrystals with selective spreading property. RSC Adv 2016. [DOI: 10.1039/c6ra03371g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Nanosize spherical assemblies of platinum nanocrystals with core/shell configurations and selective spreading properties are prepared through short peptide mediation.
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Affiliation(s)
- Jiqian Wang
- Centre for Bioengineering & Biotechnology
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum (East China)
- Qingdao
- China
| | - Kai Tao
- Centre for Bioengineering & Biotechnology
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum (East China)
- Qingdao
- China
| | - Yazhen Yang
- Centre for Bioengineering & Biotechnology
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum (East China)
- Qingdao
- China
| | - Liyan Zhang
- Centre for Bioengineering & Biotechnology
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum (East China)
- Qingdao
- China
| | - Dong Wang
- Centre for Bioengineering & Biotechnology
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum (East China)
- Qingdao
- China
| | - Meiwen Cao
- Centre for Bioengineering & Biotechnology
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum (East China)
- Qingdao
- China
| | - Yawei Sun
- Centre for Bioengineering & Biotechnology
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum (East China)
- Qingdao
- China
| | - Daohong Xia
- Centre for Bioengineering & Biotechnology
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum (East China)
- Qingdao
- China
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23
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Ji W, Qi W, Tang S, Peng H, Li S. Hydrothermal Synthesis of Ultrasmall Pt Nanoparticles as Highly Active Electrocatalysts for Methanol Oxidation. NANOMATERIALS 2015; 5:2203-2211. [PMID: 28347116 PMCID: PMC5304777 DOI: 10.3390/nano5042203] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Revised: 11/20/2015] [Accepted: 11/25/2015] [Indexed: 11/16/2022]
Abstract
Ultrasmall nanoparticles, with sizes in the 1–3 nm range, exhibit unique properties distinct from those of free molecules and larger-sized nanoparticles. Demonstrating that the hydrothermal method can serve as a facile method for the synthesis of platinum nanoparticles, we successfully synthesized ultrasmall Pt nanoparticles with an average size of 2.45 nm, with the aid of poly(vinyl pyrrolidone) (PVP) as reducing agents and capping agents. Because of the size effect, these ultrasmall Pt nanoparticles exhibit a high activity toward the methanol oxidation reaction.
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Affiliation(s)
- Wenhai Ji
- School of Materials Science and Engineering, Central South University, Changsha 410083, China.
| | - Weihong Qi
- School of Materials Science and Engineering, Central South University, Changsha 410083, China.
- Institute for Materials Microstructure, Central South University, Changsha 410083, China.
- Key Laboratory of Non-Ferrous Materials Science and Engineering, Ministry of Education, Changsha 410083, China.
| | - Shasha Tang
- School of Materials Science and Engineering, Central South University, Changsha 410083, China.
| | - Hongcheng Peng
- School of Materials Science and Engineering, Central South University, Changsha 410083, China.
| | - Siqi Li
- School of Materials Science and Engineering, Central South University, Changsha 410083, China.
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24
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Rawlings AE, Bramble JP, Tang AAS, Somner LA, Monnington AE, Cooke DJ, McPherson MJ, Tomlinson DC, Staniland SS. Phage display selected magnetite interacting Adhirons for shape controlled nanoparticle synthesis. Chem Sci 2015; 6:5586-5594. [PMID: 29861896 PMCID: PMC5949846 DOI: 10.1039/c5sc01472g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 06/30/2015] [Indexed: 11/21/2022] Open
Abstract
Adhirons are robust, well expressing, peptide display scaffold proteins, developed as an effective alternative to traditional antibody binding proteins for highly specific molecular recognition applications. This paper reports for the first time the use of these versatile proteins for material binding, and as tools for controlling material synthesis on the nanoscale. A phage library of Adhirons, each displaying two variable binding loops, was screened to identify specific proteins able to interact with [100] faces of cubic magnetite nanoparticles. The selected variable regions display a strong preference for basic residues such as lysine. Molecular dynamics simulations of amino acid adsorption onto a [100] magnetite surface provides a rationale for these interactions, with the lowest adsorption energy observed with lysine. These proteins direct the shape of the forming nanoparticles towards a cubic morphology in room temperature magnetite precipitation reactions, in stark contrast to the high temperature, harsh reaction conditions currently used to produce cubic nanoparticles. These effects demonstrate the utility of the selected Adhirons as novel magnetite mineralization control agents using ambient aqueous conditions. The approach we outline with artificial protein scaffolds has the potential to develop into a toolkit of novel additives for wider nanomaterial fabrication.
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Affiliation(s)
- Andrea E Rawlings
- Department , of Chemistry , The University of Sheffield , Sheffield , UK .
| | - Jonathan P Bramble
- Department , of Chemistry , The University of Sheffield , Sheffield , UK .
| | - Anna A S Tang
- Faculty of Biological , Sciences , The University of Leeds , Leeds , UK
| | - Lori A Somner
- Department , of Chemistry , The University of Sheffield , Sheffield , UK .
| | - Amy E Monnington
- Chemical and Biological Sciences , University of Huddersfield , Huddersfield , UK
| | - David J Cooke
- Chemical and Biological Sciences , University of Huddersfield , Huddersfield , UK
| | | | | | - Sarah S Staniland
- Department , of Chemistry , The University of Sheffield , Sheffield , UK .
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25
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Kong B, Selomulya C, Zheng G, Zhao D. New faces of porous Prussian blue: interfacial assembly of integrated hetero-structures for sensing applications. Chem Soc Rev 2015. [PMID: 26214277 DOI: 10.1039/c5cs00397k] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Prussian blue (PB), the oldest synthetic coordination compound, is a classic and fascinating transition metal coordination material. Prussian blue is based on a three-dimensional (3-D) cubic polymeric porous network consisting of alternating ferric and ferrous ions, which provides facile assembly as well as precise interaction with active sites at functional interfaces. A fundamental understanding of the assembly mechanism of PB hetero-interfaces is essential to enable the full potential applications of PB crystals, including chemical sensing, catalysis, gas storage, drug delivery and electronic displays. Developing controlled assembly methods towards functionally integrated hetero-interfaces with adjustable sizes and morphology of PB crystals is necessary. A key point in the functional interface and device integration of PB nanocrystals is the fabrication of hetero-interfaces in a well-defined and oriented fashion on given substrates. This review will bring together these key aspects of the hetero-interfaces of PB nanocrystals, ranging from structure and properties, interfacial assembly strategies, to integrated hetero-structures for diverse sensing.
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Affiliation(s)
- Biao Kong
- Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, P. R. China.
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26
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Janairo JIB, Co F, Carandang JS, Amalin DM. Sequence-dependent cluster analysis of biomineralization peptides. Z NATURFORSCH C 2015; 70:191-5. [PMID: 26263194 DOI: 10.1515/znc-2014-4202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 07/20/2015] [Indexed: 11/15/2022]
Abstract
A reliable and statistically valid classification of biomineralization peptides is herein presented. 27 biomineralization peptides (BMPep) were randomly selected as representative samples to establish the classification system using k-means method. These biomineralization peptides were either discovered through isolation from various organisms or via phage display. Our findings show that there are two types of biomineralization peptides based on their length, molecular weight, heterogeneity, and aliphatic residues. Type-1 BMPeps are more commonly found and exhibit higher values for these significant clustering variables. In contrast are the type-2 BMPeps, which have lower values for these parameters and are less common. Through our clustering analysis, a more efficient and systematic approach in BMPep selection is possible since previous methods of BMPep classification are unreliable.
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27
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Kong B, Sun X, Selomulya C, Tang J, Zheng G, Wang Y, Zhao D. Sub-5 nm porous nanocrystals: interfacial site-directed growth on graphene for efficient biocatalysis. Chem Sci 2015; 6:4029-4034. [PMID: 28717465 PMCID: PMC5497271 DOI: 10.1039/c5sc00819k] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 04/13/2015] [Indexed: 11/21/2022] Open
Abstract
An interfacial site-directed, capping-agent-free growth method for direct production of macromolecular scale (sub-5 nm) porous nanocrystals that are fully crystalline with a high surface area were developed for efficient biocatalysis.
The direct production of macromolecular scale (sub-5 nm) porous nanocrystals with high surface area has been a considerable challenge over the past two decades. Here we report an interfacial site-directed capping agent-free growth method to directly produce porous ultrasmall (sub-5 nm), fully crystalline, macromolecular scale nanocrystals. The porous sub-5 nm Prussian blue nanocrystals exhibit uniform sizes (∼4 ± 1 nm), high surface area (∼855 m2 g–1), fast electron transfer (rate constant of ∼9.73 s–1), and outstanding sustained catalytic activity (more than 450 days). The nanocrystal-based biointerfaces enable unprecedented sub-nanomolar level recognition of hydrogen peroxide (∼0.5 nM limit of detection). This method also paves the way towards the creation of ultrasmall porous nanocrystals for efficient biocatalysis.
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Affiliation(s)
- Biao Kong
- Department of Chemistry , Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) , Laboratory of Advanced Materials , Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials , Fudan University , Shanghai 200433 , P. R. China . .,Department of Chemical Engineering , Monash University , Clayton , VIC 3800 , Australia
| | - Xiaotian Sun
- Department of Cardiothoracic Surgery , Huashan Hospital of Fudan University , Shanghai 200040 , P. R. China .
| | - Cordelia Selomulya
- Department of Chemical Engineering , Monash University , Clayton , VIC 3800 , Australia
| | - Jing Tang
- Department of Chemistry , Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) , Laboratory of Advanced Materials , Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials , Fudan University , Shanghai 200433 , P. R. China .
| | - Gengfeng Zheng
- Department of Chemistry , Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) , Laboratory of Advanced Materials , Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials , Fudan University , Shanghai 200433 , P. R. China .
| | - Yingqing Wang
- Department of Cardiothoracic Surgery , Huashan Hospital of Fudan University , Shanghai 200040 , P. R. China .
| | - Dongyuan Zhao
- Department of Chemistry , Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) , Laboratory of Advanced Materials , Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials , Fudan University , Shanghai 200433 , P. R. China . .,Department of Chemical Engineering , Monash University , Clayton , VIC 3800 , Australia
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28
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Papst S, Brimble MA, Evans CW, Verdon DJ, Feisst V, Dunbar PR, Tilley RD, Williams DE. Cell-targeted platinum nanoparticles and nanoparticle clusters. Org Biomol Chem 2015; 13:6567-72. [DOI: 10.1039/c5ob00822k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The facile preparation of cell-targeted platinum nanoparticles (PtNPs) is described, using designed peptides that as a single molecule control PtNP cluster growth, stabilise clusters in aqueous suspension and enable attachment of a versatile range of cell-targeting ligands.
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Affiliation(s)
- Stefanie Papst
- The MacDiarmid Institute for Advanced Materials and Nanotechnology
- School of Chemical Sciences
- The University of Auckland
- Auckland 1123
- New Zealand
| | - Margaret A. Brimble
- The MacDiarmid Institute for Advanced Materials and Nanotechnology
- School of Chemical Sciences
- The University of Auckland
- Auckland 1123
- New Zealand
| | - Clive W. Evans
- School of Biological Sciences
- The University of Auckland
- Auckland 1123
- New Zealand
| | - Daniel J. Verdon
- School of Biological Sciences
- The University of Auckland
- Auckland 1123
- New Zealand
| | - Vaughan Feisst
- School of Biological Sciences
- The University of Auckland
- Auckland 1123
- New Zealand
| | - P. Rod Dunbar
- School of Biological Sciences
- The University of Auckland
- Auckland 1123
- New Zealand
- Maurice Wilkins Centre
| | - Richard D. Tilley
- The MacDiarmid Institute for Advanced Materials and Nanotechnology
- School of Chemical and Physical Sciences
- Victoria University of Wellington
- New Zealand
| | - David E. Williams
- The MacDiarmid Institute for Advanced Materials and Nanotechnology
- School of Chemical Sciences
- The University of Auckland
- Auckland 1123
- New Zealand
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29
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Ruan L, Ramezani-Dakhel H, Lee C, Li Y, Duan X, Heinz H, Huang Y. A rational biomimetic approach to structure defect generation in colloidal nanocrystals. ACS NANO 2014; 8:6934-6944. [PMID: 24937767 DOI: 10.1021/nn501704k] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Controlling the morphology of nanocrystals (NCs) is of paramount importance for both fundamental studies and practical applications. The morphology of NCs is determined by the seed structure and the following facet growth. While means for directing facet formation in NC growth have been extensively studied, rational strategies for the production of NCs bearing structure defects in seeds have been much less explored. Here, we report mechanistic investigations of high density twin formation induced by specific peptides in platinum (Pt) NC growth, on the basis of which we derive principles that can serve as guidelines for the rational design of molecular surfactants to introduce high yield twinning in noble metal NC syntheses. Two synergistic factors are identified in producing twinned Pt NCs with the peptide: (1) the altered reduction kinetics and crystal growth pathway as a result of the complex formation between the histidine residue on the peptide and Pt ions, and (2) the preferential stabilization of {111} planes upon the formation of twinned seeds. We further apply the discovered principles to the design of small organic molecules bearing similar binding motifs as ligands/surfactants to create single and multiple twinned Pd and Rh NCs. Our studies demonstrate the rich information derived from biomimetic synthesis and the broad applicability of biomimetic principles to NC synthesis for diverse property tailoring.
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Affiliation(s)
- Lingyan Ruan
- Department of Materials Science and Engineering, University of California , Los Angeles, California 90095, United States
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30
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Exceptionally stable, redox-active supramolecular protein assemblies with emergent properties. Proc Natl Acad Sci U S A 2014; 111:2897-902. [PMID: 24516140 DOI: 10.1073/pnas.1319866111] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The designed assembly of proteins into well-defined supramolecular architectures not only tests our understanding of protein-protein interactions, but it also provides an opportunity to tailor materials with new physical and chemical properties. Previously, we described that RIDC3, a designed variant of the monomeric electron transfer protein cytochrome cb562, could self-assemble through Zn(2+) coordination into uniform 1D nanotubes or 2D arrays with crystalline order. Here we show that these 1D and 2D RIDC3 assemblies display very high chemical stabilities owing to their metal-mediated frameworks, maintaining their structural order in ≥90% (vol/vol) of several polar organic solvents including tetrahydrofuran (THF) and isopropanol (iPrOH). In contrast, the unassembled RIDC3 monomers denature in ∼30% THF and 50% iPrOH, indicating that metal-mediated self-assembly also leads to considerable stabilization of the individual building blocks. The 1D and 2D RIDC3 assemblies are highly thermostable as well, remaining intact at up to ∼70 °C and ∼90 °C, respectively. The 1D nanotubes cleanly convert into the 2D arrays on heating above 70 °C, a rare example of a thermal crystalline-to-crystalline conversion in a biomolecular assembly. Finally, we demonstrate that the Zn-directed RIDC3 assemblies can be used to spatiotemporally control the templated growth of small Pt(0) nanocrystals. This emergent function is enabled by and absolutely dependent on both the supramolecular assembly of RIDC3 molecules (to form a periodically organized structural template) and their innate redox activities (to direct Pt(2+) reduction).
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31
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Maji T, Banerjee S, Biswas M, Mandal TK. In situ synthesis of ultra-small platinum nanoparticles using a water soluble polyphenolic polymer with high catalytic activity. RSC Adv 2014. [DOI: 10.1039/c4ra08900f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ultra-small platinum nanoparticles are generated by in situ polymer reduction technique which shows high catalytic activity in water and in organic solvent.
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Affiliation(s)
- Tanmoy Maji
- Polymer Science Unit
- Indian Association for the Cultivation of Science
- Kolkata 700 032, India
| | - Sanjib Banerjee
- Polymer Science Unit
- Indian Association for the Cultivation of Science
- Kolkata 700 032, India
| | - Mrinmoy Biswas
- Polymer Science Unit
- Indian Association for the Cultivation of Science
- Kolkata 700 032, India
| | - Tarun K. Mandal
- Polymer Science Unit
- Indian Association for the Cultivation of Science
- Kolkata 700 032, India
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32
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Ruan L, Zhu E, Chen Y, Lin Z, Huang X, Duan X, Huang Y. Biomimetic Synthesis of an Ultrathin Platinum Nanowire Network with a High Twin Density for Enhanced Electrocatalytic Activity and Durability. Angew Chem Int Ed Engl 2013; 52:12577-81. [DOI: 10.1002/anie.201304658] [Citation(s) in RCA: 166] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Indexed: 11/09/2022]
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33
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Ruan L, Zhu E, Chen Y, Lin Z, Huang X, Duan X, Huang Y. Biomimetic Synthesis of an Ultrathin Platinum Nanowire Network with a High Twin Density for Enhanced Electrocatalytic Activity and Durability. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201304658] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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34
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35
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Chiu CY, Ruan L, Huang Y. Biomolecular specificity controlled nanomaterial synthesis. Chem Soc Rev 2013; 42:2512-27. [DOI: 10.1039/c2cs35347d] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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36
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Sakamoto M, Tanaka D, Teranishi T. Rigid bidentate ligands focus the size of gold nanoparticles. Chem Sci 2013. [DOI: 10.1039/c2sc21560h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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37
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Kharissova OV, Kharisov BI, Jiménez-Pérez VM, Muñoz Flores B, Ortiz Méndez U. Ultrasmall particles and nanocomposites: state of the art. RSC Adv 2013. [DOI: 10.1039/c3ra43418d] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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38
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Tao K, Wang J, Li Y, Xia D, Shan H, Xu H, Lu JR. Short peptide-directed synthesis of one-dimensional platinum nanostructures with controllable morphologies. Sci Rep 2013; 3:2565. [PMID: 23995118 PMCID: PMC3759059 DOI: 10.1038/srep02565] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Accepted: 08/15/2013] [Indexed: 02/02/2023] Open
Abstract
Although one dimensional (1D) Pt nanostructures with well-defined sizes and shapes have fascinating physiochemical properties, their preparation remains a great challenge. Here we report an easy and novel synthesis of 1D Pt nanostructures with controllable morphologies, through the combination of designer self-assembling I3K and phage-displayed P7A peptides. The nanofibrils formed via I3K self-assembly acted as template. Pt precursors ((PtCl4)(2-) and (PtCl6)(2-)) were immobilized by electrostatic interaction on the positively charged template surface and subsequent reduction led to the formation of 1D Pt nanostructures. P7A was applied to tune the continuity of the Pt nanostructures. Here, the electrostatic repulsion between the deprotonated C-terminal carboxyl groups of P7A molecules was demonstrated to play a key role. We finally showed that continuous and ordered 1D Pt morphology had a significantly improved electrochemical performance for the hydrogen and methanol electro-oxidation in comparison with either 1D discrete Pt nanoparticle assemblies or isolated Pt nanoparticles.
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Affiliation(s)
- Kai Tao
- State Key Laboratory of Heavy Oil Processing and Center for Bioengineering and Biotechnology, China University of Petroleum (East China), 66 Changjiang West Road, Qingdao 266580, China
| | - Jiqian Wang
- State Key Laboratory of Heavy Oil Processing and Center for Bioengineering and Biotechnology, China University of Petroleum (East China), 66 Changjiang West Road, Qingdao 266580, China
| | - Yanpeng Li
- State Key Laboratory of Heavy Oil Processing and Center for Bioengineering and Biotechnology, China University of Petroleum (East China), 66 Changjiang West Road, Qingdao 266580, China
| | - Daohong Xia
- State Key Laboratory of Heavy Oil Processing and Center for Bioengineering and Biotechnology, China University of Petroleum (East China), 66 Changjiang West Road, Qingdao 266580, China
| | - Honghong Shan
- State Key Laboratory of Heavy Oil Processing and Center for Bioengineering and Biotechnology, China University of Petroleum (East China), 66 Changjiang West Road, Qingdao 266580, China
| | - Hai Xu
- State Key Laboratory of Heavy Oil Processing and Center for Bioengineering and Biotechnology, China University of Petroleum (East China), 66 Changjiang West Road, Qingdao 266580, China
| | - Jian R. Lu
- Biological Physics Group, School of Physics and Astronomy, the University of Manchester, Manchester M13 9PL, United Kingdom
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Yu N, Kuai L, Wang Q, Geng B. Pt nanoparticles residing in the pores of porous LaNiO₃ nanocubes as high-efficiency electrocatalyst for direct methanol fuel cells. NANOSCALE 2012; 4:5386-5393. [PMID: 22820999 DOI: 10.1039/c2nr31055d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Pt-filled porous LaNiO₃ cubes are prepared through a facile route. The characterizations reveal that large numbers of pores (9-10 nm) are distributed homogeneously in porous LaNiO₃ cubes. The Pt nanoparticles residing in the pores of porous LaNiO₃ cubes are about 5 nm in size. The investigation on the electrocatalytic activity reveals that electrocatalytic activity of the obtained Pt loaded porous LaNiO₃ nanocubes exhibit a significantly improved electrochemical active surface area (EASA) and a remarkably enhanced electrocatalytic performance toward methanol oxidation. The results are significant for improving the efficiency of Pt-based catalysts for DMFCs as well as the applications of perovskite compounds.
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Affiliation(s)
- Nan Yu
- College of Chemistry and Materials Science, the Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials, Anhui Normal University, Wuhu 241000, P. R. China
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40
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Cao M, Wu D, Gao S, Cao R. Platinum Nanoparticles Stabilized by Cucurbit[6]uril with Enhanced Catalytic Activity and Excellent Poisoning Tolerance for Methanol Electrooxidation. Chemistry 2012; 18:12978-85. [DOI: 10.1002/chem.201201817] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Indexed: 11/09/2022]
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41
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Li Y, Li Y, Zhu E, McLouth T, Chiu CY, Huang X, Huang Y. Stabilization of High-Performance Oxygen Reduction Reaction Pt Electrocatalyst Supported on Reduced Graphene Oxide/Carbon Black Composite. J Am Chem Soc 2012; 134:12326-9. [DOI: 10.1021/ja3031449] [Citation(s) in RCA: 405] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Yujing Li
- Department
of Materials Science and Engineering and ‡California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Yongjia Li
- Department
of Materials Science and Engineering and ‡California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Enbo Zhu
- Department
of Materials Science and Engineering and ‡California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Tait McLouth
- Department
of Materials Science and Engineering and ‡California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Chin-Yi Chiu
- Department
of Materials Science and Engineering and ‡California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Xiaoqing Huang
- Department
of Materials Science and Engineering and ‡California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Yu Huang
- Department
of Materials Science and Engineering and ‡California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
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42
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Donatan S, Sarikaya M, Tamerler C, Urgen M. Effect of solid surface charge on the binding behaviour of a metal-binding peptide. J R Soc Interface 2012; 9:2688-95. [PMID: 22491974 DOI: 10.1098/rsif.2012.0060] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Over the last decade, solid-binding peptides have been increasingly used as molecular building blocks coupling bio- and nanotechnology. Despite considerable research being invested in this field, the effects of many surface-related parameters that define the binding of peptide to solids are still unknown. In the quest to control biological molecules at solid interfaces and, thereby, tailoring the binding characteristics of the peptides, the use of surface charge of the solid surface may probably play an important role, which then can be used as a potential tuning parameter of peptide adsorption. Here, we report quantitative investigation on the viscoelastic properties and binding kinetics of an engineered gold-binding peptide, 3RGBP(1), adsorbed onto the gold surface at different surface charge densities. The experiments were performed in aqueous solutions using an electrochemical dissipative quartz crystal microbalance system. Hydrodynamic mass, hydration state and surface coverage of the adsorbed peptide films were determined as a function of surface charge density of the gold metal substrate. Under each charged condition, binding of 3rGBP(1) displayed quantitative differences in terms of adsorbed peptide amount, surface coverage ratio and hydration state. Based on the intrinsically disordered structure of the peptide, we propose a possible mechanism for binding of the peptide that can be used for tuning surface adsorption in further studies. Controlled alteration of peptide binding on solid surfaces, as shown here, may provide novel methods for surface functionalization used for bioenabled processing and fabrication of future micro- and nanodevices.
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Affiliation(s)
- Senem Donatan
- Department of Materials Science and Engineering, Istanbul Technical University, Istanbul, Maslak 34469, Turkey
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43
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Cung K, Slater RL, Cui Y, Jones SE, Ahmad H, Naik RR, McAlpine MC. Rapid, multiplexed microfluidic phage display. LAB ON A CHIP 2012; 12:562-5. [PMID: 22182980 DOI: 10.1039/c2lc21129g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The development of a method for high-throughput, automated proteomic screening could impact areas ranging from fundamental molecular interactions to the discovery of novel disease markers and therapeutic targets. Surface display techniques allow for efficient handling of large molecular libraries in small volumes. In particular, phage display has emerged as a powerful technology for selecting peptides and proteins with enhanced, target-specific binding affinities. Yet, the process becomes cumbersome and time-consuming when multiple targets are involved. Here we demonstrate for the first time a microfluidic chip capable of identifying high affinity phage-displayed peptides for multiple targets in just a single round and without the need for bacterial infection. The chip is shown to be able to yield well-established control consensus sequences while simultaneously identifying new sequences for clinically important targets. Indeed, the confined parameters of the device allow not only for highly controlled assay conditions but also introduce a significant time-reduction to the phage display process. We anticipate that this easily-fabricated, disposable device has the potential to impact areas ranging from fundamental studies of protein, peptide, and molecular interactions, to applications such as fully automated proteomic screening.
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Affiliation(s)
- Kellye Cung
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08544, USA
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44
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Li Y, Wang ZW, Chiu CY, Ruan L, Yang W, Yang Y, Palmer RE, Huang Y. Synthesis of bimetallic Pt-Pd core-shell nanocrystals and their high electrocatalytic activity modulated by Pd shell thickness. NANOSCALE 2012; 4:845-851. [PMID: 22159178 DOI: 10.1039/c1nr11374g] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Bimetallic Pt-Pd core-shell nanocrystals (NCs) are synthesized through a two-step process with controlled Pd thickness from sub-monolayer to multiple atomic layers. The oxygen reduction reaction (ORR) catalytic activity and methanol oxidation reactivity of the core-shell NCs for fuel cell applications in alkaline solution are systematically studied and compared based on different Pd thickness. It is found that the Pd shell helps to reduce the over-potential of ORR by up to 50 mV when compared to commercial Pd black, while generating up to 3-fold higher kinetic current density. The carbon monoxide poisoning test shows that the bimetallic NCs are more resistant to the CO poisoning than Pt NCs and Pt black. It is also demonstrated that the bimetallic Pt-Pd core-shell NCs can enhance the current density of the methanol oxidation reaction, lowering the over-potential by 35 mV with respect to the Pt core NCs. Further investigation reveals that the Pd/Pt ratio of 1/3, which corresponds to nearly monolayer Pd deposition on Pt core NCs, gives the highest oxidation current density and lowest over-potential. This study shows for the first time the systematic investigation of effects of Pd atomic shells on Pt-Pd bimetallic nanocatalysts, providing valuable guidelines for designing high-performance catalysts for fuel cell applications.
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Affiliation(s)
- Yujing Li
- Department of Materials Science and Engineering, University of California-Los Angeles, Los Angeles, 90095, USA
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45
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Galloway JM, Staniland SS. Protein and peptide biotemplated metal and metal oxide nanoparticles and their patterning onto surfaces. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm31620j] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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46
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Chen G, Tan Y, Wu B, Fu G, Zheng N. Carbon monoxide-controlled synthesis of surface-clean Pt nanocubes with high electrocatalytic activity. Chem Commun (Camb) 2012; 48:2758-60. [DOI: 10.1039/c2cc17984a] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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47
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Peltier R, Siah WR, Williams GVM, Brimble MA, Tilley RD, Williams DE. Novel Phosphopeptides as Surface-Active Agents in Iron Nanoparticle Synthesis. Aust J Chem 2012. [DOI: 10.1071/ch12168] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We report the dramatic effect of rationally-designed phosphopeptides on the size and shape of iron-iron oxide core-shell nanoparticles prepared in a one-pot synthesis by sodium borohydride reduction of an iron salt. These phosphopeptides are effective at small ratios of peptide to metal, in contrast to the behaviour of conventional capping agents, which must be added at high concentration to control the particle growth.
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Abstract
Molecular imaging allows clinicians to visualize disease-specific molecules, thereby providing relevant information in the diagnosis and treatment of patients. With advances in genomics and proteomics and underlying mechanisms of disease pathology, the number of targets identified has significantly outpaced the number of developed molecular imaging probes. There has been a concerted effort to bridge this gap with multidisciplinary efforts in chemistry, proteomics, physics, material science, and biology—all essential to progress in molecular imaging probe development. In this review, we discuss target selection, screening techniques, and probe optimization with the aim of developing clinically relevant molecularly targeted imaging agents.
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Affiliation(s)
- Fred Reynolds
- From the Robert M. Berne Cardiovascular Research Center and the Department of Biomedical Engineering, University of Virginia, Charlottesville, VA. Reprints not available
| | - Kimberly A. Kelly
- From the Robert M. Berne Cardiovascular Research Center and the Department of Biomedical Engineering, University of Virginia, Charlottesville, VA. Reprints not available
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San BH, Kim S, Moh SH, Lee H, Jung DY, Kim KK. Platinum Nanoparticles Encapsulated by Aminopeptidase: A Multifunctional Bioinorganic Nanohybrid Catalyst. Angew Chem Int Ed Engl 2011; 50:11924-9. [DOI: 10.1002/anie.201101833] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2011] [Revised: 06/16/2011] [Indexed: 11/06/2022]
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50
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San BH, Kim S, Moh SH, Lee H, Jung DY, Kim KK. Platinum Nanoparticles Encapsulated by Aminopeptidase: A Multifunctional Bioinorganic Nanohybrid Catalyst. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201101833] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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