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Chatterjee A, Ghosh S, Ghosh C, Das D. Fluorescent Microswimmers Based on Cross-β Amyloid Nanotubes and Divergent Cascade Networks. Angew Chem Int Ed Engl 2022; 61:e202201547. [PMID: 35578748 DOI: 10.1002/anie.202201547] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Indexed: 12/21/2022]
Abstract
Shaped through millions of years of evolution, the spatial localization of multiple enzymes in living cells employs extensive cascade reactions to enable highly coordinated multimodal functions. Herein, by utilizing a complex divergent cascade, we exploit the catalytic potential as well as templating abilities of streamlined cross-β amyloid nanotubes to yield two orthogonal roles simultaneously. The short peptide based paracrystalline nanotube surfaces demonstrated the generation of fluorescence signals within entangled networks loaded with alcohol dehydrogenase (ADH). The nanotubular morphologies were further used to generate cascade-driven microscopic motility through surface entrapment of sarcosine oxidase (SOX) and catalase (Cat). Moreover, a divergent cascade network was initiated by upstream catalysis of the substrate molecules through the surface mutation of catalytic moieties. Notably, the resultant downstream products led to the generation of motile fluorescent microswimmers by utilizing the two sets of orthogonal properties and, thus, mimicked the complex cascade-mediated functionalities of extant biology.
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Affiliation(s)
- Ayan Chatterjee
- Department of Chemical Sciences & Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India
| | - Souvik Ghosh
- Department of Chemical Sciences & Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India
| | - Chandranath Ghosh
- Department of Chemical Sciences & Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India
| | - Dibyendu Das
- Department of Chemical Sciences & Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India
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Fluorescent Microswimmers Based on Cross‐β Amyloid Nanotubes and Divergent Cascade Networks. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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3
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Chatterjee A, Mahato C, Das D. Complex Cascade Reaction Networks via Cross β Amyloid Nanotubes. Angew Chem Int Ed Engl 2020; 60:202-207. [PMID: 32956553 DOI: 10.1002/anie.202011454] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Indexed: 12/16/2022]
Abstract
Biocatalytic reaction networks integrate complex cascade transformations via spatial localization of multiple enzymes confined within the cellular milieu. Inspired by nature's ingenuity, we demonstrate that short peptide-based cross-β amyloid nanotubular hybrids can promote different kinds of cascade reactions, from simple two-step, to multistep, to complex convergent cascades. The compartmentalizing ability of paracrystalline cross-β phases was utilized to colocalize sarcosine oxidase (SOX) and hemin as an artificial peroxidase. Further, the catalytic potential of the amyloid nanotubes with ordered arrays of imidazoles were used as hydrolase mimic. The SOX-hemin amyloid nanohybrids featuring a single extant enzyme could integrate different logic networks to access complex digital designs with the help of three concatenated AND gates and biologically relevant stimuli as inputs.
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Affiliation(s)
- Ayan Chatterjee
- Department of Chemical Sciences & Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India
| | - Chiranjit Mahato
- Department of Chemical Sciences & Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India
| | - Dibyendu Das
- Department of Chemical Sciences & Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India
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Bal S, Ghosh C, Ghosh T, Vijayaraghavan RK, Das D. Non-Equilibrium Polymerization of Cross-β Amyloid Peptides for Temporal Control of Electronic Properties. Angew Chem Int Ed Engl 2020; 59:13506-13510. [PMID: 32348633 DOI: 10.1002/anie.202003721] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 04/13/2020] [Indexed: 11/09/2022]
Abstract
Hydrophobic collapse plays crucial roles in protein functions, from accessing the complex three-dimensional structures of native enzymes to the dynamic polymerization of non-equilibrium microtubules. However, hydrophobic collapse can also lead to the thermodynamically downhill aggregation of aberrant proteins, which has interestingly led to the development of a unique class of soft nanomaterials. There remain critical gaps in the understanding of the mechanisms of how hydrophobic collapse can regulate such aggregation. Demonstrated herein is a methodology for non-equilibrium amyloid polymerization through mutations of the core sequence of Aβ peptides by a thermodynamically activated moiety. An out of equilibrium state is realized because of the negative feedback from the transiently formed cross-β amyloid networks. Such non-equilibrium amyloid nanostructures were utilized to access temporal control over its electronic properties.
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Affiliation(s)
- Subhajit Bal
- Department of Chemical Sciences & Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India
| | - Chandranath Ghosh
- Department of Chemical Sciences & Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India
| | - Tapan Ghosh
- Department of Chemical Sciences & Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India
| | - Ratheesh K Vijayaraghavan
- Department of Chemical Sciences & Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India
| | - Dibyendu Das
- Department of Chemical Sciences & Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India
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6
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Bal S, Ghosh C, Ghosh T, Vijayaraghavan RK, Das D. Non‐Equilibrium Polymerization of Cross‐β Amyloid Peptides for Temporal Control of Electronic Properties. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003721] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Subhajit Bal
- Department of Chemical Sciences & Centre for Advanced Functional Materials Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur West Bengal 741246 India
| | - Chandranath Ghosh
- Department of Chemical Sciences & Centre for Advanced Functional Materials Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur West Bengal 741246 India
| | - Tapan Ghosh
- Department of Chemical Sciences & Centre for Advanced Functional Materials Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur West Bengal 741246 India
| | - Ratheesh K. Vijayaraghavan
- Department of Chemical Sciences & Centre for Advanced Functional Materials Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur West Bengal 741246 India
| | - Dibyendu Das
- Department of Chemical Sciences & Centre for Advanced Functional Materials Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur West Bengal 741246 India
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7
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Ma D, Xie C, Wang T, Mei L, Zhang X, Guo Z, Yin W. Liquid‐Phase Exfoliation and Functionalization of MoS
2
Nanosheets for Effective Antibacterial Application. Chembiochem 2020; 21:2373-2380. [DOI: 10.1002/cbic.202000195] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Indexed: 12/12/2022]
Affiliation(s)
- Dongqing Ma
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety Institute of High Energy Physics and CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology of ChinaChinese Academy of Sciences Beijing 100049 P. R. China
| | - Changjian Xie
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety Institute of High Energy Physics and CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology of ChinaChinese Academy of Sciences Beijing 100049 P. R. China
- School of life SciencesShandong University of Technology No. 266 Xincun West Road Zibo 255000 Shandong P. R. China
| | - Tao Wang
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety Institute of High Energy Physics and CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology of ChinaChinese Academy of Sciences Beijing 100049 P. R. China
| | - Linqiang Mei
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety Institute of High Energy Physics and CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology of ChinaChinese Academy of Sciences Beijing 100049 P. R. China
| | - Xiao Zhang
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety Institute of High Energy Physics and CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology of ChinaChinese Academy of Sciences Beijing 100049 P. R. China
| | - Zhao Guo
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety Institute of High Energy Physics and CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology of ChinaChinese Academy of Sciences Beijing 100049 P. R. China
| | - Wenyan Yin
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety Institute of High Energy Physics and CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology of ChinaChinese Academy of Sciences Beijing 100049 P. R. China
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8
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Reja A, Afrose SP, Das D. Aldolase Cascade Facilitated by Self‐Assembled Nanotubes from Short Peptide Amphiphiles. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914633] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Antara Reja
- Department of Chemical Sciences & Centre for Advanced Functional MaterialsIndian Institute of Science Education and Research (IISER) Kolkata Mohanpur, West Bengal 741246 India
| | - Syed Pavel Afrose
- Department of Chemical Sciences & Centre for Advanced Functional MaterialsIndian Institute of Science Education and Research (IISER) Kolkata Mohanpur, West Bengal 741246 India
| | - Dibyendu Das
- Department of Chemical Sciences & Centre for Advanced Functional MaterialsIndian Institute of Science Education and Research (IISER) Kolkata Mohanpur, West Bengal 741246 India
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Reja A, Afrose SP, Das D. Aldolase Cascade Facilitated by Self-Assembled Nanotubes from Short Peptide Amphiphiles. Angew Chem Int Ed Engl 2020; 59:4329-4334. [PMID: 31920004 DOI: 10.1002/anie.201914633] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 12/17/2019] [Indexed: 12/25/2022]
Abstract
Early evolution benefited from a complex network of reactions involving multiple C-C bond forming and breaking events that were critical for primitive metabolism. Nature gradually chose highly evolved and complex enzymes such as lyases to efficiently facilitate C-C bond formation and cleavage with remarkable substrate selectivity. Reported here is a lipidated short peptide which accesses a homogenous nanotubular morphology to efficiently catalyze C-C bond cleavage and formation. This system shows morphology-dependent catalytic rates, suggesting the formation of a binding pocket and registered enhancements in the presence of the hydrogen-bond donor tyrosine, which is exploited by extant aldolases. These assemblies showed excellent substrate selectivity and templated the formation of a specific adduct from a pool of possible adducts. The ability to catalyze metabolically relevant cascade transformations suggests the importance of such systems in early evolution.
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Affiliation(s)
- Antara Reja
- Department of Chemical Sciences & Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, 741246, India
| | - Syed Pavel Afrose
- Department of Chemical Sciences & Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, 741246, India
| | - Dibyendu Das
- Department of Chemical Sciences & Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, 741246, India
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Afrose SP, Bal S, Chatterjee A, Das K, Das D. Designed Negative Feedback from Transiently Formed Catalytic Nanostructures. Angew Chem Int Ed Engl 2019; 58:15783-15787. [PMID: 31476101 DOI: 10.1002/anie.201910280] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Indexed: 02/02/2023]
Affiliation(s)
- Syed Pavel Afrose
- Department of Chemical Sciences & Centre for Advanced Functional Materials Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur West Bengal 741246 India
| | - Subhajit Bal
- Department of Chemical Sciences & Centre for Advanced Functional Materials Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur West Bengal 741246 India
| | - Ayan Chatterjee
- Department of Chemical Sciences & Centre for Advanced Functional Materials Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur West Bengal 741246 India
| | - Krishnendu Das
- Department of Chemical Sciences & Centre for Advanced Functional Materials Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur West Bengal 741246 India
| | - Dibyendu Das
- Department of Chemical Sciences & Centre for Advanced Functional Materials Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur West Bengal 741246 India
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11
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Afrose SP, Bal S, Chatterjee A, Das K, Das D. Designed Negative Feedback from Transiently Formed Catalytic Nanostructures. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910280] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Syed Pavel Afrose
- Department of Chemical Sciences & Centre for Advanced Functional Materials Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur West Bengal 741246 India
| | - Subhajit Bal
- Department of Chemical Sciences & Centre for Advanced Functional Materials Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur West Bengal 741246 India
| | - Ayan Chatterjee
- Department of Chemical Sciences & Centre for Advanced Functional Materials Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur West Bengal 741246 India
| | - Krishnendu Das
- Department of Chemical Sciences & Centre for Advanced Functional Materials Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur West Bengal 741246 India
| | - Dibyendu Das
- Department of Chemical Sciences & Centre for Advanced Functional Materials Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur West Bengal 741246 India
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12
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Wang J, Liu L, Ge D, Zhang H, Feng Y, Zhang Y, Chen M, Dong M. Differential Modulating Effect of MoS 2 on Amyloid Peptide Assemblies. Chemistry 2018; 24:3397-3402. [PMID: 29210123 DOI: 10.1002/chem.201704593] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Indexed: 11/11/2022]
Abstract
The abnormal fibrillogenesis of amyloid peptides such as amyloid fibril and senior amyloid plaques, is associated with the pathogenesis of many amyloid diseases. Hence, modulation of amyloid assemblies is related to the possible pathogenesis of some diseases. Some two-dimensional nanomaterials, that is, graphene oxide, tungsten disulfide, exhibit strong modulation effects on the amyloid fibrillogenesis. Herein, the modulation effect of molybdenum disulfide on two amyloid peptide assemblies based on the label-free techniques is presented, including quartz crystal microbalance (QCM), AFM, and CD spectroscopy. MoS2 presents different modulating effects on the assembly of amyloid-β peptide (33-42) [Aβ (33-42)] and amylin (20-29), mainly owing to the distinct affinity between amyloid peptides and MoS2 . This is to our knowledge the first report of MoS2 as a modulator for amyloid aggregation. It enriches the variety of 2D nanomodulators of amyloid fibrillogenesis and explains the mechanism for the self-assembly of amyloid peptides, and expands the applications of MoS2 in biology.
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Affiliation(s)
- Jie Wang
- Institute for Advanced Materials, Jiangsu University, 212013 Xuefu Road No. 301, Zhenjiang city, Jinagsu Province, P.R. China.,Interdisciplinary Nanoscience Center (iNANO), Aarhus University, 8000, Aarhus C, Denmark
| | - Lei Liu
- Institute for Advanced Materials, Jiangsu University, 212013 Xuefu Road No. 301, Zhenjiang city, Jinagsu Province, P.R. China
| | - Daohan Ge
- School of Mechanical Engineering, Micro/nano Science and Technology Center, Jiangsu University, 212013 Xuefu Road No. 301, Zhenjiang city, Jinagsu Province, P.R. China
| | - Hongxing Zhang
- Institute for Advanced Materials, Jiangsu University, 212013 Xuefu Road No. 301, Zhenjiang city, Jinagsu Province, P.R. China
| | - Yonghai Feng
- Institute for Advanced Materials, Jiangsu University, 212013 Xuefu Road No. 301, Zhenjiang city, Jinagsu Province, P.R. China
| | - Yibang Zhang
- Zhang Department of Pharmaceutics, School of Pharmacy, Jiangsu University, 212013 Xuefu Road No. 301, Zhenjiang city, Jinagsu Province, P.R. China
| | - Menglin Chen
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, 8000, Aarhus C, Denmark
| | - Mingdong Dong
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, 8000, Aarhus C, Denmark
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Dong X, Yin W, Zhang X, Zhu S, He X, Yu J, Xie J, Guo Z, Yan L, Liu X, Wang Q, Gu Z, Zhao Y. Intelligent MoS 2 Nanotheranostic for Targeted and Enzyme-/pH-/NIR-Responsive Drug Delivery To Overcome Cancer Chemotherapy Resistance Guided by PET Imaging. ACS APPLIED MATERIALS & INTERFACES 2018; 10:4271-4284. [PMID: 29318879 DOI: 10.1021/acsami.7b17506] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Chemotherapy resistance remains a major hurdle for cancer therapy in clinic because of the poor cellular uptake and insufficient intracellular release of drugs. Herein, an intelligent, multifunctional MoS2 nanotheranostic (MoS2-PEI-HA) ingeniously decorated with biodegradable hyaluronic acid (HA) assisted by polyethyleneimine (PEI) is reported to combat drug-resistant breast cancer (MCF-7-ADR) after loading with the chemotherapy drug doxorubicin (DOX). HA can not only target CD44-overexpressing MCF-7-ADR but also be degraded by hyaluronidase (HAase) that is concentrated in the tumor microenvironment, thus accelerating DOX release. Furthermore, MoS2 with strong near-infrared (NIR) photothermal conversion ability can also promote the release of DOX in the acidic tumor environment at a mild 808 nm laser irradiation, achieving a superior antitumor activity based on the programmed response to HAase and NIR laser actuator. Most importantly, HA targeting combined with mild NIR laser stimuli, rather than using hyperthermia, can potently downregulate the expression of drug-resistance-related P-glycoprotein (P-gp), resulting in greatly enhanced intracellular drug accumulation, thus achieving drug resistance reversal. After labeled with 64Cu by a simple chelation strategy, MoS2 was employed for real-time positron emission tomography (PET) imaging of MCF-7-ADR tumor in vivo. This multifunctional nanoplatform paves a new avenue for PET imaging-guided spatial-temporal-controlled accurate therapy of drug-resistant cancer.
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Affiliation(s)
- Xinghua Dong
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, China
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences , Beijing 100049, China
| | - Wenyan Yin
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, China
| | - Xiao Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, China
| | - Shuang Zhu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, China
| | - Xiao He
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, China
| | - Jie Yu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, China
| | - Jiani Xie
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, China
| | - Zhao Guo
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, China
| | - Liang Yan
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, China
| | - Xiangfeng Liu
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences , Beijing 100049, China
| | - Qing Wang
- School of Material Science and Engineering, Institute of Nano Engineering, Shandong University of Science and Technology , Qingdao 266590, China
| | - Zhanjun Gu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, China
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences , Beijing 100049, China
| | - Yuliang Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, China
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences , Beijing 100049, China
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Chinese Academy of Sciences , Beijing 100190, China
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Huang XW, Wei JJ, Liu T, Zhang XL, Bai SM, Yang HH. Silk fibroin-assisted exfoliation and functionalization of transition metal dichalcogenide nanosheets for antibacterial wound dressings. NANOSCALE 2017; 9:17193-17198. [PMID: 29095468 DOI: 10.1039/c7nr06807g] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Two-dimensional transition metal dichalcogenides (TMDs) have attracted rapidly increasing attention due to their fascinating properties and potential applications. However, scalable and cost-effective methods to produce thin-layer TMD nanosheets and their functional composites with environmental benignity are still limited. Herein, we develop a facile and environmentally friendly method for the scalable production of thin-layer TMD nanosheets in an aqueous medium by using silk fibroin, a natural and abundant biopolymer, as the exfoliating agent. Specifically, carboxyl-modified silk fibroin significantly improves the exfoliation efficiency, achieving the high-yield production of thin-layer MoSe2 nanosheets with good solution stabilization and excellent biocompatibility. Strong binding interactions endow the resultant MoSe2 nanosheets with unprecedentedly high concentrations. By virtue of the solution-processability of silk fibroin, MoSe2 hybrid nanosheets are readily fabricated into macroscopic freestanding films. Furthermore, due to the superior peroxidase-like activity of MoSe2 nanosheets, MoSe2-based films show rapid and effective wound disinfection and healing efficacy with the use of low-dose H2O2in vivo, avoiding the side effects of high-dose H2O2 in traditional medical therapy. This work may offer new opportunities to apply two-dimensional TMD nanosheets for clinical applications.
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Affiliation(s)
- Xiao-Wei Huang
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China.
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