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Gao F, Guo J, Liu S, Zhang F, Zhang Y, Wang L. Empowering hydrophobic anticancer drugs by ultrashort peptides: General Co-assembly strategy for improved solubility, targeted efficacy, and clinical application. J Colloid Interface Sci 2024; 667:119-127. [PMID: 38631250 DOI: 10.1016/j.jcis.2024.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 04/19/2024]
Abstract
The current state of drug delivery systems allows for the resolution of specific issues like inadequate solubility, limited targeting capabilities, and complex preparation processes, requiring tailored designs for different drugs. Yet, the major challenge in clinical application lies in surmounting these obstacles with a universal carrier that is effective for a variety of anticancer drugs. Herein, with the help of computer simulation, we rationally design ultrashort peptides GY and CCYRGD, which can co-assemble with hydrophobic anticancer drugs into nanoparticles with enhanced solubility, targeting ability and anticancer efficacy. Taking 7-ethyl-10-hydroxy camptothecin (SN38) as a model anticancer drug, the co-assembled SN38-GY-CCYRGD nanoparticles significantly enhance the water solubility of SN38 by more than three orders of magnitude. The as-prepared nanoparticles can effectively kill cancer cells, e.g., human small cell lung cancer (A549) cells with a notable cell mortality rate of 71%. Mice experimental results demonstrate the nanoparticles' efficient targeting capability, marked reducing the toxicity to normal tissues while improving antitumor efficacy. This work presents a novel drug delivery method, integrating effective, targeted, and safe strategies into a comprehensive carrier system, designed for the administration of hydrophobic anticancer drugs.
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Affiliation(s)
- Feng Gao
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China; Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Jun Guo
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
| | - Shihao Liu
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
| | - Feng Zhang
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China; Key Laboratory of Optical Technology and Instrument for Medicine, Ministry of Education, University of Shanghai for Science and Technology, Shanghai 200093, China.
| | - Yi Zhang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China.
| | - Liping Wang
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China.
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2
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Yurtsever A, Sun L, Hirata K, Fukuma T, Rath S, Zareie H, Watanabe S, Sarikaya M. Molecular Scale Structure and Kinetics of Layer-by-Layer Peptide Self-Organization at Atomically Flat Solid Surfaces. ACS NANO 2023; 17:7311-7325. [PMID: 36857412 DOI: 10.1021/acsnano.2c10673] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Understanding the mechanisms of self-organization of short peptides into two- and three-dimensional architectures are of great interest in the formation of crystalline biomolecular systems and their practical applications. Since the assembly is a dynamic process, the study of structural development is challenging at the submolecular dimensions continuously across an adequate time scale in the natural biological environment, in addition to the complexities stemming from the labile molecular structures of short peptides. Self-organization of solid binding peptides on surfaces offers prospects to overcome these challenges. Here we use a graphite binding dodecapeptide, GrBP5, and record its self-organization process of the first two layers on highly oriented pyrolytic graphite surface in an aqueous solution by using frequency modulation atomic force microscopy in situ. The observations suggest that the first layer forms homogeneously, generating self-organized crystals with a lattice structure in contact with the underlying graphite. The second layer formation is mostly heterogeneous, triggered by the crystalline defects on the first layer, growing row-by-row establishing nominally diverse biomolecular self-organized structures with transient crystalline phases. The assembly is highly dependent on the peptide concentration, with the nucleation being high in high molecular concentrations, e.g., >100 μM, while the domain size is small, with an increase in the growth rate that gradually slows down. Self-assembled peptide crystals are composed of either singlets or doublets establishing P1 and P2 oblique lattices, respectively, each commensurate with the underlying graphite lattice with chiral crystal relations. This work provides insights into the surface behavior of short peptides on solids and offers quantitative guidance toward elucidating molecular mechanisms of self-assembly helping in the scientific understanding and construction of coherent bio/nano hybrid interfaces.
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Affiliation(s)
- Ayhan Yurtsever
- WPI Nano Life Science Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Linhao Sun
- WPI Nano Life Science Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Kaito Hirata
- Institute for Frontier Science and Initiative, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Takeshi Fukuma
- WPI Nano Life Science Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Siddharth Rath
- GEMSEC, Genetically Engineered Materials Science and Engineering Center, University of Washington, Seattle, Washington 98195, United States
| | - Hadi Zareie
- GEMSEC, Genetically Engineered Materials Science and Engineering Center, University of Washington, Seattle, Washington 98195, United States
| | - Shinji Watanabe
- WPI Nano Life Science Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Mehmet Sarikaya
- GEMSEC, Genetically Engineered Materials Science and Engineering Center, University of Washington, Seattle, Washington 98195, United States
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3
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Chen J, Bai Q, Li Y, Liu Z, Li Y, Liang D. Coacervates Forming Coexisting Phases on a Mineral Surface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:5814-5824. [PMID: 37053474 DOI: 10.1021/acs.langmuir.3c00101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Minerals played a crucial role in the chemical evolution of small molecules into biopolymers. Yet, it is still not clear how the minerals are related to the formation and the evolution of protocells on early Earth. In this work, using the coacervate formed by quaternized dextran (Q-dextran) and single-stranded oligonucleotides (ss-oligo) as the protocell model, we systematically studied the phase separation of Q-dextran and ss-oligo on the muscovite surface. Serving as rigid and 2D polyelectrolytes, the muscovite surface can be treated by Q-dextran to become negatively charged, neutral, or positively charged. We observed that Q-dextran and ss-oligo form uniform coacervates on naked and neutral muscovite surfaces, while they form biphasic coacervates containing Q-dextran-rich phases and ss-oligo-rich phases on positively or negatively charged muscovite surfaces that were pretreated by Q-dextran. The evolution of the phases is caused by the redistribution of the components as the coacervate touches the surface. Our study indicates that the mineral surface could be a potential driving force for the formation of protocells with hierarchical structures and desirable functions on prebiotic Earth.
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Affiliation(s)
- Jiaxin Chen
- Beijing National Laboratory for Molecular Sciences, and the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Qingwen Bai
- Beijing National Laboratory for Molecular Sciences, and the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Yanzhang Li
- Beijing Key Laboratory of Mineral Environmental Function, and the Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Science, Peking University, Beijing 100871, China
| | - Zhijun Liu
- Beijing National Laboratory for Molecular Sciences, and the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Yan Li
- Beijing Key Laboratory of Mineral Environmental Function, and the Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Science, Peking University, Beijing 100871, China
| | - Dehai Liang
- Beijing National Laboratory for Molecular Sciences, and the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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4
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Ma Y, Li X, Zhao R, Wu E, Du Q, Guo J, Wang L, Zhang F. Creating de novo peptide-based bioactivities: from assembly to origami. RSC Adv 2022; 12:25955-25961. [PMID: 36199601 PMCID: PMC9465703 DOI: 10.1039/d2ra03135c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 08/24/2022] [Indexed: 11/21/2022] Open
Abstract
DNA origami has created complex structures of various spatial dimensions. However, their versatility in terms of function is limited due to the lower number of the intrinsic building blocks, i.e. nucleotides, compared with the number of amino acids. Therefore, protein origami has been proposed and demonstrated to precisely fabricate artificial functional nanostructures. Despite their hierarchical folded structures, chain-like peptides and DNA share obvious similarities in both structures and properties, especially in terms of chain hybridization; therefore, replacing DNA with peptides to create bioactivities not only has high theoretical feasibility but also provides a new bottom-up synthetic strategy. However, designing functionalities with tens to hundreds of peptide chains using the similar principle of DNA origami has not been reported, although the origami strategy holds great potential to generate more complex bioactivities. In this perspective review, we have reviewed the recent progress in and highlighted the advantages of peptide assembly and origami on the orientation of artificially created bioactivities. With the great potential of peptide origami, we appeal to develop user-friendly softwares in combination with artificial intelligence.
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Affiliation(s)
- Yuxing Ma
- Wenzhou Institute, University of Chinese Academy of Sciences Wenzhou 325001 China
- Oujiang Laboratory Wenzhou Zhejiang 325000 P. R. China
- Inner Mongolia Key Laboratory of Tick-Borne Zoonotic Infectious Disease, Department of Medicine, Hetao College Bayannur 015000 China
| | - Xiaofang Li
- Wenzhou Institute, University of Chinese Academy of Sciences Wenzhou 325001 China
- Oujiang Laboratory Wenzhou Zhejiang 325000 P. R. China
- Key Laboratory of Optical Technology and Instrument for Medicine, Ministry of Education, University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Ruoyang Zhao
- Wenzhou Institute, University of Chinese Academy of Sciences Wenzhou 325001 China
- Oujiang Laboratory Wenzhou Zhejiang 325000 P. R. China
| | - Enqi Wu
- Inner Mongolia Key Laboratory of Tick-Borne Zoonotic Infectious Disease, Department of Medicine, Hetao College Bayannur 015000 China
| | - Qiqige Du
- Wenzhou Institute, University of Chinese Academy of Sciences Wenzhou 325001 China
- Oujiang Laboratory Wenzhou Zhejiang 325000 P. R. China
| | - Jun Guo
- Key Laboratory of Optical Technology and Instrument for Medicine, Ministry of Education, University of Shanghai for Science and Technology Shanghai 200093 P. R. China
- State Key Laboratory of Respiratory Disease, Guangzhou Institute of Oral Disease, Stomatology Hospital, School of Biomedical Engineering, Guangzhou Medical University Guangzhou 511436 China
| | - Liping Wang
- Wenzhou Institute, University of Chinese Academy of Sciences Wenzhou 325001 China
- Oujiang Laboratory Wenzhou Zhejiang 325000 P. R. China
| | - Feng Zhang
- Wenzhou Institute, University of Chinese Academy of Sciences Wenzhou 325001 China
- Oujiang Laboratory Wenzhou Zhejiang 325000 P. R. China
- Key Laboratory of Optical Technology and Instrument for Medicine, Ministry of Education, University of Shanghai for Science and Technology Shanghai 200093 P. R. China
- State Key Laboratory of Respiratory Disease, Guangzhou Institute of Oral Disease, Stomatology Hospital, School of Biomedical Engineering, Guangzhou Medical University Guangzhou 511436 China
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5
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Stroyuk O, Raievska O, Brabec CJ, Dzhagan V, Havryliuk Y, Zahn DRT. Self-assembly of colloidal single-layer carbon nitride. NANOSCALE 2022; 14:12347-12357. [PMID: 35971970 DOI: 10.1039/d2nr03477h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
We introduce a new concept of a "bottom-to-top" design of intercalate carbon nitride compounds based on the effects of self-assembly of colloidal single-layer carbon nitride (SLCN) sheets stabilized by tetraethylammonium hydroxide NEt4OH upon ambient drying of the water solvent. These effects include (i) formation of stage-1 intercalates of NEt4OH during the ambient drying of SLCN colloids on glass substrates and (ii) the spontaneous formation of layered hexagonally-shaped networks of SLCN sheets on freshly-cleaved mica surfaces. The dynamics of the intercalate formation was followed by in situ X-ray diffraction allowing different stages to be identified, including the deposition of a primary "wet" intercalate of hydrated NEt4OH and the gradual elimination of excessive water during its ambient drying. The intercalated NEt4+ cations show a specific "flattened" conformation allowing the dynamics of formation and structure of the intercalate to be probed by vibrational spectroscopies. The two-dimensional self-assembly on mica is assumed to be driven both by the internal hexagonal symmetry of heptazine units and by a templating effect of the mica surface.
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Affiliation(s)
- Oleksandr Stroyuk
- Forschungszentrum Jülich GmbH, Helmholtz-Institut Erlangen Nürnberg für Erneuerbare Energien (HI ERN), 91058 Erlangen, Germany.
| | - Oleksandra Raievska
- Forschungszentrum Jülich GmbH, Helmholtz-Institut Erlangen Nürnberg für Erneuerbare Energien (HI ERN), 91058 Erlangen, Germany.
| | - Christoph J Brabec
- Forschungszentrum Jülich GmbH, Helmholtz-Institut Erlangen Nürnberg für Erneuerbare Energien (HI ERN), 91058 Erlangen, Germany.
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Materials for Electronics and Energy Technology (i-MEET), Martensstrasse 7, 91058 Erlangen, Germany
| | - Volodymyr Dzhagan
- V. Lashkaryov Institute of Semiconductors Physics, National Academy of Sciences of Ukraine, 41 Nauky Av., 03028 Kyiv, Ukraine
- Taras Shevchenko National University of Kyiv, 64 Volodymyrs'ka St., 01601 Kyiv, Ukraine
| | - Yevhenii Havryliuk
- Semiconductor Physics, Chemnitz University of Technology, D-09107 Chemnitz, Germany
- Center for Materials, Architectures, and Integration of Nanomembranes (MAIN), Chemnitz University of Technology, D-09107 Chemnitz, Germany
| | - Dietrich R T Zahn
- Semiconductor Physics, Chemnitz University of Technology, D-09107 Chemnitz, Germany
- Center for Materials, Architectures, and Integration of Nanomembranes (MAIN), Chemnitz University of Technology, D-09107 Chemnitz, Germany
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6
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Sun L, Li P, Seki T, Tsuchiya S, Yatsu K, Narimatsu T, Sarikaya M, Hayamizu Y. Chiral Recognition of Self-Assembled Peptides on MoS 2 via Lattice Matching. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:8696-8704. [PMID: 34278791 DOI: 10.1021/acs.langmuir.1c00792] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Chiral recognition of peptides on solid surfaces has been studied for a better understanding of their assembly mechanism toward its applications in stereochemistry and enantioselective catalysis. However, moving from small peptides such as dipeptides, understanding the chiral recognition of larger biomolecules such as oligopeptides or peptides with a larger sequence is challenging. Furthermore, their intrinsic mechanism for chiral recognition in liquid conditions was poorly investigated experimentally. Here, we used in/ex situ atomic force microscopy (AFM) to investigate the chiral recognition of self-assembled structures of l/d-type peptides on molybdenum disulfide (MoS2). We chose single-layer MoS2 with a triangular shape as a substrate for the self-assembly of peptides. The facet edges of MoS2 were utilized as a landmark to identify the crystallographic orientation of their ordered structures. We found both peptide enantiomers formed nanowires on MoS2 with a mirror symmetry according to the facet edges of MoS2. From in situ AFM measurements, we found a dimension of a unit cell in the self-assembled structure and proposed a model of lattice matching between peptides and MoS2 lattice. The lattice matching for chiral recognition was further investigated by changing peptide sequences and surface lattice from MoS2 to graphite. This work further deepened the understanding of biomolecular chiral recognition and will lead us to rationally design specific morphologies and conformations of chiral self-assembled structures of peptides with expected functions in the future.
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Affiliation(s)
- Linhao Sun
- WPI Nano Life Science Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - Peiying Li
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - Takakazu Seki
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - Shohei Tsuchiya
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - Kazuki Yatsu
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - Takuma Narimatsu
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - Mehmet Sarikaya
- GEMSEC, Genetically Engineered Materials Science and Engineering Center, Materials Science and Engineering, University of Washington, Seattle WA98195, United States
| | - Yuhei Hayamizu
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8550, Japan
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7
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He M, Chen X, Liu D, Wei D. Two-dimensional self-healing hydrogen-bond-based supramolecular polymer film. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.01.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Zhang J, Zhou L, Du Q, Shen Z, Hu J, Zhang Y. Assembly of peptides in mica-graphene nanocapillaries controlled by confined water. NANOSCALE 2019; 11:8210-8218. [PMID: 30973561 DOI: 10.1039/c9nr01092k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Water in nanoscale-confined geometries has unique physicochemical properties in contrast to bulk water, and is believed to play important roles in biological processes although there is less direct information available in the literature. Here, we report the self-assembly behaviors of a neurodegenerative disease related peptide termed GAV-9 encapsulated in mica-graphene nanocapillaries interacting with water nanofilms condensed under ambient conditions, based on atomic force microscopy (AFM) imaging and molecular dynamics (MD) simulations. The results revealed that, upon increase in the humidity, the GAV-9 peptide monomers adsorbed the confined water molecules and transitioned to unexpected hydrogel-like structures. Our MD simulations also suggested that in the confined mica-graphene nanocapillaries, the GAV-9 peptide monomers would indeed form water-rich hydrogel structures instead of highly ordered nanofilaments. The interfacial water confined in the mica-graphene nanocapillary is found to be crucial for such a transition. Moreover, the distribution of confined water layers largely depended on the locations of the preformed peptide nanofilaments, and the peptide nanofilaments further assembled into nanosheets with the water layer increasing, but depolymerized to amorphous peptide assemblies with the water layer decreasing. The polymerization and depolymerization of the peptide nanofilaments could be controlled in a reversible manner. Our results have supplied a simplified model system to uncover the effects of the confined interfacial water on the biological process at the molecular level.
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Affiliation(s)
- Jinjin Zhang
- Shanghai Synchrotron Radiation Facility, Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China.
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9
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Wei C, Zhao W, Shi X, Pei C, Wei P, Zhang J, Li H. Thick Two-Dimensional Water Film Confined between the Atomically Thin Mica Nanosheet and Hydrophilic Substrate. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:5130-5139. [PMID: 30907594 DOI: 10.1021/acs.langmuir.8b04232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The interesting properties of water molecules confined in a two-dimensional (2D) environment have aroused great attention. However, the study of 2D-confined water at the hydrophilic-hydrophilic interface is largely unexplored due to the lack of appropriate system. In this work, the behavior of water molecules confined between an atomically thin mica nanosheet and a hydrophilic SiO2/Si substrate was investigated using an atomic force microscope in detail at ambient conditions. The confined water molecules aggregated as droplets when the relative humidity (RH) of the environment was 11%. A large-area 2D water film with a uniform thickness of ∼2 nm was observed when the mica flake was incubated at 33% RH for 1 h before being mechanically exfoliated on a SiO2/Si substrate. Interestingly, the water film showed ordered edges with a predominant angle of 120°, which was the same with the lattice orientation of the mica nanosheet on top of it. The water film showed a fluidic behavior at the early stage and reached a stable state after 48 h under ambient conditions. The surface properties of the upper mica nanosheet and the underlying substrate played a crucial role in manipulating the behavior of confined water molecules. When the surface of the upper mica nanosheet was modified by Na+, Ni2+, and aminopropyltriethoxysilane (APS), only some small water droplets were observed instead of a water film. The surface of the underlying SiO2/Si substrate was functionalized by hydrophilic APS and hydrophobic octadecyltrimethoxysiliane (OTS). The small water droplets were imaged on a hydrophobic OTS-SiO2/Si substrate, while the water film with regular edges was maintained on a hydrophilic APS-SiO2/Si substrate. Our results might provide an alternative molecular view for investigating structures and properties of confined water molecules in 2D environments.
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Affiliation(s)
- Cong Wei
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) , Nanjing Tech University (NanjingTech) , 30 South Puzhu Road , Nanjing 211816 , P.R. China
| | - Weihao Zhao
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) , Nanjing Tech University (NanjingTech) , 30 South Puzhu Road , Nanjing 211816 , P.R. China
| | - Xiaotong Shi
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) , Nanjing Tech University (NanjingTech) , 30 South Puzhu Road , Nanjing 211816 , P.R. China
| | - Chengjie Pei
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) , Nanjing Tech University (NanjingTech) , 30 South Puzhu Road , Nanjing 211816 , P.R. China
| | - Pei Wei
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) , Nanjing Tech University (NanjingTech) , 30 South Puzhu Road , Nanjing 211816 , P.R. China
| | - Jindong Zhang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) , Nanjing Tech University (NanjingTech) , 30 South Puzhu Road , Nanjing 211816 , P.R. China
| | - Hai Li
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) , Nanjing Tech University (NanjingTech) , 30 South Puzhu Road , Nanjing 211816 , P.R. China
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Mineral Surface-Templated Self-Assembling Systems: Case Studies from Nanoscience and Surface Science towards Origins of Life Research. Life (Basel) 2018; 8:life8020010. [PMID: 29738443 PMCID: PMC6027067 DOI: 10.3390/life8020010] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 04/26/2018] [Accepted: 05/03/2018] [Indexed: 01/20/2023] Open
Abstract
An increasing body of evidence relates the wide range of benefits mineral surfaces offer for the development of early living systems, including adsorption of small molecules from the aqueous phase, formation of monomeric subunits and their subsequent polymerization, and supramolecular assembly of biopolymers and other biomolecules. Each of these processes was likely a necessary stage in the emergence of life on Earth. Here, we compile evidence that templating and enhancement of prebiotically-relevant self-assembling systems by mineral surfaces offers a route to increased structural, functional, and/or chemical complexity. This increase in complexity could have been achieved by early living systems before the advent of evolvable systems and would not have required the generally energetically unfavorable formation of covalent bonds such as phosphodiester or peptide bonds. In this review we will focus on various case studies of prebiotically-relevant mineral-templated self-assembling systems, including supramolecular assemblies of peptides and nucleic acids, from nanoscience and surface science. These fields contain valuable information that is not yet fully being utilized by the origins of life and astrobiology research communities. Some of the self-assemblies that we present can promote the formation of new mineral surfaces, similar to biomineralization, which can then catalyze more essential prebiotic reactions; this could have resulted in a symbiotic feedback loop by which geology and primitive pre-living systems were closely linked to one another even before life’s origin. We hope that the ideas presented herein will seed some interesting discussions and new collaborations between nanoscience/surface science researchers and origins of life/astrobiology researchers.
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11
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Wang Y, Fu R, Duan Z, Jiang X, Zhu C, Fan D. Inorganic salt transition states: a stable and highly stretchable elastomer-like phase (ELP) of phosphate salts at the air–solid interface. Chem Commun (Camb) 2018; 54:9973-9976. [DOI: 10.1039/c8cc04917c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An ultra-high stable elastomer-like phase (ELP) of phosphate salts was formed at the air–solid interface of a specially designed substrate, possessing multilayered structures, elasticity and self-healing abilities.
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Affiliation(s)
- Ya Wang
- Shaanxi Key Laboratory of Degradable Biomedical Materials
- School of Chemical Engineering
- Northwest University
- Xi’an
- China
| | - Rongzhan Fu
- Shaanxi Key Laboratory of Degradable Biomedical Materials
- School of Chemical Engineering
- Northwest University
- Xi’an
- China
| | - Zhiguang Duan
- Shaanxi Key Laboratory of Degradable Biomedical Materials
- School of Chemical Engineering
- Northwest University
- Xi’an
- China
| | - Xijuan Jiang
- Shaanxi Key Laboratory of Degradable Biomedical Materials
- School of Chemical Engineering
- Northwest University
- Xi’an
- China
| | - Chenhui Zhu
- Shaanxi Key Laboratory of Degradable Biomedical Materials
- School of Chemical Engineering
- Northwest University
- Xi’an
- China
| | - Daidi Fan
- Shaanxi Key Laboratory of Degradable Biomedical Materials
- School of Chemical Engineering
- Northwest University
- Xi’an
- China
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12
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Zhuikov VA, Bonartsev AP, Zharkova II, Bykova GS, Taraskin NY, Kireynov AV, Kopitsyna MN, Bonartseva GA, Shaitan KV. Effect of Poly(ethylene glycol) on the Ultrastructure and Physicochemical Properties of the Poly(3-hydroxybutyrate). ACTA ACUST UNITED AC 2017. [DOI: 10.1002/masy.201600189] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Vsevolod A. Zhuikov
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences; 33, bld. 2 Leninsky Av. 119071 Moscow Russia
| | - A. P. Bonartsev
- Faculty of Biology, Lomonosov Moscow State University; Leninskie gory, 1-12 119236 Moscow Russia
| | - I. I. Zharkova
- Faculty of Biology, Lomonosov Moscow State University; Leninskie gory, 1-12 119236 Moscow Russia
| | - G. S. Bykova
- Faculty of Soil Science, Lomonosov Moscow State University; Leninskie gory, 1-12 119992 Moscow Russia
| | - N. Y. Taraskin
- Bauman Moscow State Technical University; 5, 2-nd Baumanskaya 105005 Moscow Russia
| | - A. V. Kireynov
- Bauman Moscow State Technical University; 5, 2-nd Baumanskaya 105005 Moscow Russia
| | - M. N. Kopitsyna
- Bauman Moscow State Technical University; 5, 2-nd Baumanskaya 105005 Moscow Russia
| | - G. A. Bonartseva
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences; 33, bld. 2 Leninsky Av. 119071 Moscow Russia
| | - K. V. Shaitan
- Faculty of Biology, Lomonosov Moscow State University; Leninskie gory, 1-12 119236 Moscow Russia
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13
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Bagrov D, Gazizova Y, Podgorsky V, Udovichenko I, Danilkovich A, Prusakov K, Klinov D. Morphology and aggregation of RADA-16-I peptide Studied by AFM, NMR and molecular dynamics simulations. Biopolymers 2017; 106:72-81. [PMID: 26501800 DOI: 10.1002/bip.22755] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 08/31/2015] [Accepted: 10/17/2015] [Indexed: 01/25/2023]
Abstract
RADA-16-I is a self-assembling peptide which forms biocompatible fibrils and hydrogels. We used molecular dynamics simulations, atomic-force microscopy, NMR spectroscopy, and thioflavin T binding assay to examine size, structure, and morphology of RADA-16-I aggregates. We used the native form of RADA-16-I (H-(ArgAlaAspAla)4 -OH) rather than the acetylated one commonly used in the previous studies. At neutral pH, RADA-16-I is mainly in the fibrillar form, the fibrils consist of an even number of stacked β-sheets. At acidic pH, RADA-16-I fibrils disassemble into monomers, which form an amorphous monolayer on graphite and monolayer lamellae on mica. RADA-16-I fibrils were compared with the fibrils of a similar peptide RLDL-16-I. Thickness of β-sheets measured by AFM was in excellent agreement with the molecular dynamics simulations. A pair of RLDL-16-I β-sheets was thicker (2.3 ± 0.4 nm) than a pair of RADA-16-I β-sheets (1.9 ± 0.1 nm) due to the volume difference between alanine and leucine residues.
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Affiliation(s)
- Dmitry Bagrov
- Scientific Research Institute of Physical-Chemical Medicine, Malaya Pirogovskaya, 1a Moscow, 119435, Russian Federation.,Faculty of Biology, Department of Bioengineering, M.V. Lomonosov Moscow State University, Leninskie Gory, 1/73, Moscow, 111991, Russian Federation
| | - Yuliya Gazizova
- Scientific Research Institute of Physical-Chemical Medicine, Malaya Pirogovskaya, 1a Moscow, 119435, Russian Federation.,Department of Biological and Medical Physics, Moscow Institute of Physics and Technology, Institutsky Lane 9, Dolgoprudny, Moscow Region, 141700, Russian Federation
| | - Victor Podgorsky
- Scientific Research Institute of Physical-Chemical Medicine, Malaya Pirogovskaya, 1a Moscow, 119435, Russian Federation
| | - Igor Udovichenko
- Branch of Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Prospect Nauki-6, Pushchino, 142290, Russian Federation.,Pushchino State Institute of Natural Science, Prospect Nauki-3, Pushchino, 142290, Russian Federation
| | - Alexey Danilkovich
- Branch of Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Prospect Nauki-6, Pushchino, 142290, Russian Federation.,Pushchino State Institute of Natural Science, Prospect Nauki-3, Pushchino, 142290, Russian Federation
| | - Kirill Prusakov
- Scientific Research Institute of Physical-Chemical Medicine, Malaya Pirogovskaya, 1a Moscow, 119435, Russian Federation
| | - Dmitry Klinov
- Scientific Research Institute of Physical-Chemical Medicine, Malaya Pirogovskaya, 1a Moscow, 119435, Russian Federation.,Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya, 16/10, Moscow, 117997, Russian Federation
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14
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Zhang F, Zhang P, Hou J, Yun X, Li W, Du Q, Chen Y. Large scale anomalous patterns of muscovite mica discovered by atomic force microscopy. ACS APPLIED MATERIALS & INTERFACES 2015; 7:8699-8705. [PMID: 25839085 DOI: 10.1021/acsami.5b00984] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Muscovite mica is a widely used substrate because of its flatness. The large scale anomalous patterns of muscovite have been discovered by atomic force microscopy (AFM). These patterns distribute around the defects of the muscovite surface. By using different imaging modes and analyzing functions of AFM, these extraordinary patterns are thoroughly characterized, and it was revealed that some selected regularly aligned patterns mimic 2-D orthorhombic crystal systems surrounding the regular structure. However, such patterned nanostructures have no effects on the template-assisted self-assembly (or epitaxial growth) of a disease-related peptide GAV-9.
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Affiliation(s)
- Feng Zhang
- School of Life Science, Inner Mongolia Agricultural University, 306 Zhaowuda Road, Hohhot 010018, China
| | - Ping Zhang
- School of Life Science, Inner Mongolia Agricultural University, 306 Zhaowuda Road, Hohhot 010018, China
| | - Jiahua Hou
- School of Life Science, Inner Mongolia Agricultural University, 306 Zhaowuda Road, Hohhot 010018, China
| | - Xiaoling Yun
- School of Life Science, Inner Mongolia Agricultural University, 306 Zhaowuda Road, Hohhot 010018, China
| | - Wanrong Li
- School of Life Science, Inner Mongolia Agricultural University, 306 Zhaowuda Road, Hohhot 010018, China
| | - Qiqige Du
- School of Life Science, Inner Mongolia Agricultural University, 306 Zhaowuda Road, Hohhot 010018, China
| | - Youjun Chen
- School of Life Science, Inner Mongolia Agricultural University, 306 Zhaowuda Road, Hohhot 010018, China
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15
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Rizzi LG, Head DA, Auer S. Universality in the morphology and mechanics of coarsening amyloid fibril networks. PHYSICAL REVIEW LETTERS 2015; 114:078102. [PMID: 25763974 DOI: 10.1103/physrevlett.114.078102] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Indexed: 06/04/2023]
Abstract
Peptide hydrogels have important applications as biomaterials and in nanotechnology, but utilization often depends on their mechanical properties for which we currently have no predictive capability. Here we use a peptide model to simulate the formation of percolating amyloid fibril networks and couple these to the elastic network theory to determine their mechanical properties. We find that the time variation of network length scales can be collapsed onto master curves by using a time scaling function that depends on the peptide interaction anisotropy. The same scaling applies to network mechanics, revealing a nonmonotonic dependence of the shear modulus with time. Our structure-function relationship between the peptide building blocks, network morphology, and network mechanical properties can aid in the design of amyloid fibril networks with tailored mechanical properties.
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Affiliation(s)
- L G Rizzi
- School of Chemistry, University of Leeds, LS2 9JT Leeds, United Kingdom
| | - D A Head
- School of Computing, University of Leeds, LS2 9JT Leeds, United Kingdom
| | - S Auer
- School of Chemistry, University of Leeds, LS2 9JT Leeds, United Kingdom
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16
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An ion diffusion method for visualising a solid-like water nanofilm. Sci Rep 2013; 3:3505. [PMID: 24336341 PMCID: PMC3863810 DOI: 10.1038/srep03505] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Accepted: 11/28/2013] [Indexed: 11/08/2022] Open
Abstract
A nano-thick solid-like water film on solid surfaces plays an important role in various fields, including biology, materials science, atmospheric chemistry, catalysis and astrophysics. Visualising the water nanofilm has been a challenge due to its dynamic nature and nanoscale thickness. Here we report an ion diffusion method to address this problem using a membrane formed with a BSA-Na2CO3 (BSA, bovine serum albumin) mixture. After a solid-like water nanofilm deposits onto the membrane, Na(+) and CO3(2-) ions diffuse into the film to form a solid Na2CO3 phase in its place. Consequently, the morphology of the nanofilm can be visualised by the space filled by the Na2CO3. Using this method, we successfully observed polygon-like, ribbon-like and spot-like nanofilms at 193 K, 253 K and room temperature, respectively. Our method may provide a tool for characterising confined water films ranging from a few nanometres to hundreds of nanometres in thickness.
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17
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Zhou XR, Ge R, Luo SZ. Self-assembly of pH and calcium dual-responsive peptide-amphiphilic hydrogel. J Pept Sci 2013; 19:737-44. [DOI: 10.1002/psc.2569] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2013] [Revised: 08/28/2013] [Accepted: 09/02/2013] [Indexed: 12/27/2022]
Affiliation(s)
- Xi-Rui Zhou
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology; Beijing University of Chemical Technology; Beijing 100029 China
| | - Rui Ge
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology; Beijing University of Chemical Technology; Beijing 100029 China
| | - Shi-Zhong Luo
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology; Beijing University of Chemical Technology; Beijing 100029 China
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18
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Zhou X, Zhang Y, Zhang F, Pillai S, Liu J, Li R, Dai B, Li B, Zhang Y. Hierarchical ordering of amyloid fibrils on the mica surface. NANOSCALE 2013; 5:4816-4822. [PMID: 23613010 DOI: 10.1039/c3nr00886j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The aggregation of amyloid peptides into ordered fibrils is closely associated with many neurodegenerative diseases. The surfaces of cell membranes and biomolecules are believed to play important roles in modulation of peptide aggregation under physiological conditions. Experimental studies of fibrillogenesis at the molecular level in vivo, however, are inherently challenging, and the molecular mechanisms of how surface affects the structure and ordering of amyloid fibrils still remain elusive. Herein we have investigated the aggregation behavior of insulin peptides within water films adsorbed on the mica surface. AFM measurements revealed that the structure and orientation of fibrils were significantly affected by the mica lattice and the peptide concentration. At low peptide concentration (~0.05 mg mL(-1)), there appeared a single layer of short and well oriented fibrils with a mean height of 1.6 nm. With an increase of concentration to a range of 0.2-2.0 mg mL(-1), a different type of fibrils with a mean height of 3.8 nm was present. Interestingly, when the concentration was above 2.0 mg mL(-1), the thicker fibrils exhibited two-dimensional liquid-crystal-like ordering probably caused by the combination of entropic and electrostatic forces. These results could help us gain better insight into the effects of the substrate on amyloid fibrillation.
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Affiliation(s)
- Xingfei Zhou
- Department of Physics, Ningbo University, Ningbo, 315211, China
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19
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Xie M, Li H, Ye M, Zhang Y, Hu J. Peptide Self-Assembly on Mica under Ethanol-Containing Atmospheres: Effects of Ethanol on Epitaxial Growth of Peptide Nanofilaments. J Phys Chem B 2012; 116:2927-33. [DOI: 10.1021/jp2089438] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Muyun Xie
- Shanghai Institute of Applied
Physics, Chinese Academy of Sciences
- Graduate School of the Chinese Academy of Sciences
| | - Hai Li
- Shanghai Institute of Applied
Physics, Chinese Academy of Sciences
| | - Ming Ye
- Shanghai Institute of Applied
Physics, Chinese Academy of Sciences
| | - Yi Zhang
- Shanghai Institute of Applied
Physics, Chinese Academy of Sciences
| | - Jun Hu
- Shanghai Institute of Applied
Physics, Chinese Academy of Sciences
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20
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Gallyamov MO. Scanning Force Microscopy as Applied to Conformational Studies in Macromolecular Research. Macromol Rapid Commun 2011; 32:1210-46. [DOI: 10.1002/marc.201100150] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2011] [Revised: 04/06/2011] [Indexed: 01/17/2023]
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21
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Ye M, Li B, Zhang Y, Li H, Wang X, Hu J. Confined Water Nanofilm Promoting Nonenzymatic Degradation of DNA Molecules. J Phys Chem B 2011; 115:2754-8. [DOI: 10.1021/jp109212d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ming Ye
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, P. R. China and
- Graduate University of the Chinese Academy of Sciences, Beijing, 100049, P. R. China and
| | - Bin Li
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, P. R. China and
| | - Yi Zhang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, P. R. China and
| | - Hai Li
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, P. R. China and
| | - Xinyan Wang
- Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, P. R. China
| | - Jun Hu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, P. R. China and
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22
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Yang H, Wang H, Hou Z, Wang P, Li B, Li J, Hu J. Fabrication and application of high quality poly(dimethylsiloxane) stamps by gamma ray irradiation. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm03814h] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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High-resolution visualization of fibrinogen molecules and fibrin fibers with atomic force microscopy. Biomacromolecules 2010; 12:370-9. [PMID: 21192636 DOI: 10.1021/bm101122g] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report an atomic force microscopy (AFM) study of fibrinogen molecules and fibrin fibers with resolution previously achieved only in few electron microscopy images. Not only are all objects triads, but the peripheral D regions are resolved into the two subdomains, apparently corresponding to the βC and γC domains. The conformational analysis of a large population of fibrinogen molecules on mica revealed the two most energetically favorable conformations characterized by bending angles of ∼100 and 160 degrees. Computer modeling of the experimental images of fibrinogen molecules showed that the AFM patterns are in good agreement with the molecular dimensions and shapes detected by other methods. Imaging in different environments supports the expected hydration of the fibrinogen molecules in buffer, whereas imaging in humid air suggests the 2D spreading of fibrinogen on mica induced by an adsorbed water layer. Visualization of intact hydrated fibrin fibers showed cross-striations with an axial period of 24.0 ± 1.6 nm, in agreement with a pattern detected earlier with electron microscopy and small-angle X-ray diffraction. However, this order is clearly detected on the surface of thin fibers and becomes less discernible with the fiber's growth. This structural change is consistent with the proposal that thinner fibers are denser than thicker ones, that is, that the molecule packing decreases with the increasing of the fibers' diameter.
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24
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Ye M, Zhang Y, Li H, Xie M, Hu J. Supramolecular Structures of Amyloid-Related Peptides in an Ambient Water Nanofilm. J Phys Chem B 2010; 114:15759-65. [PMID: 21077660 DOI: 10.1021/jp105501x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ming Ye
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China and Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
| | - Yi Zhang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China and Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
| | - Hai Li
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China and Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
| | - Muyun Xie
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China and Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
| | - Jun Hu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China and Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
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25
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Zhang FC, Zhang F, Su HN, Li H, Zhang Y, Hu J. Mechanical manipulation assisted self-assembly to achieve defect repair and guided epitaxial growth of individual peptide nanofilaments. ACS NANO 2010; 4:5791-5796. [PMID: 20839881 DOI: 10.1021/nn101541m] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We have succeeded in the production of defect-free and spatially organized individual one-dimensional peptide nanofilaments by real-time control of the self-assembly process on a solid substrate. Using a unique mechanical manipulation method based on atomic force microscopy, we are able to introduce mechanical stimuli to generate active ends at designated positions on an existing peptide nanofilament previously formed. By doing so, defects in the filament were removed, and self-repairing occurred when the active ends extended along the direction of the supporting lattice, resulting in the closure of the broken filament. Furthermore, new active ends of the nanofilaments can be specifically generated to guide the self-assembly of new filaments at designated positions with selected orientations. The mechanism of defect repair and guided epitaxial growth is also discussed.
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Affiliation(s)
- Fu-Chun Zhang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
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26
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Zhang Y, Hu X, Sun J, Shen Y, Hu J, Xu X, Shao Z. High-resolution imaging and nano-manipulation of biological structures on surface. Microsc Res Tech 2010; 74:614-26. [DOI: 10.1002/jemt.20925] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2010] [Accepted: 07/21/2010] [Indexed: 11/11/2022]
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