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Novelli F, Vilela M, Pazó A, Amorín M, Granja JR. Molecular Plumbing to Bend Self‐Assembling Peptide Nanotubes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Federica Novelli
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Organic Chemistry Department Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Marcos Vilela
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Organic Chemistry Department Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Antía Pazó
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Organic Chemistry Department Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Manuel Amorín
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Organic Chemistry Department Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Juan R. Granja
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Organic Chemistry Department Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
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Novelli F, Vilela M, Pazó A, Amorín M, Granja JR. Molecular Plumbing to Bend Self-Assembling Peptide Nanotubes. Angew Chem Int Ed Engl 2021; 60:18838-18844. [PMID: 34185371 PMCID: PMC8456905 DOI: 10.1002/anie.202107034] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Indexed: 12/11/2022]
Abstract
Light-induced molecular piping of cyclic peptide nanotubes to form bent tubular structures is described. The process is based on the [4+4] photocycloaddition of anthracene moieties, whose structural changes derived from the interdigitated flat disposition of precursors to the corresponding cycloadduct moieties, induced the geometrical modifications in nanotubes packing that provokes their curvature. For this purpose, we designed a new class of cyclic peptide nanotubes formed by β- and α-amino acids. The presence of the former predisposes the peptide to stack in a parallel fashion with the β-residues aligned along the nanotube and the homogeneous distribution of anthracene pendants.
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Affiliation(s)
- Federica Novelli
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Organic Chemistry DepartmentUniversidade de Santiago de Compostela15782Santiago de CompostelaSpain
| | - Marcos Vilela
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Organic Chemistry DepartmentUniversidade de Santiago de Compostela15782Santiago de CompostelaSpain
| | - Antía Pazó
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Organic Chemistry DepartmentUniversidade de Santiago de Compostela15782Santiago de CompostelaSpain
| | - Manuel Amorín
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Organic Chemistry DepartmentUniversidade de Santiago de Compostela15782Santiago de CompostelaSpain
| | - Juan R. Granja
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Organic Chemistry DepartmentUniversidade de Santiago de Compostela15782Santiago de CompostelaSpain
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Park JE, Won S, Cho W, Kim JG, Jhang S, Lee JG, Wie JJ. Fabrication and applications of stimuli‐responsive micro/nanopillar arrays. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210311] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jeong Eun Park
- Department of Polymer Science and Engineering Inha University Incheon 22212 Republic of Korea
- Program in Environmental and Polymer Engineering Inha University Incheon 22212 Republic of Korea
| | - Sukyoung Won
- Department of Polymer Science and Engineering Inha University Incheon 22212 Republic of Korea
- Program in Environmental and Polymer Engineering Inha University Incheon 22212 Republic of Korea
| | - Woongbi Cho
- Department of Polymer Science and Engineering Inha University Incheon 22212 Republic of Korea
- Program in Environmental and Polymer Engineering Inha University Incheon 22212 Republic of Korea
| | - Jae Gwang Kim
- Department of Polymer Science and Engineering Inha University Incheon 22212 Republic of Korea
- Program in Environmental and Polymer Engineering Inha University Incheon 22212 Republic of Korea
| | - Saebohm Jhang
- Department of Polymer Science and Engineering Inha University Incheon 22212 Republic of Korea
- Program in Environmental and Polymer Engineering Inha University Incheon 22212 Republic of Korea
| | - Jae Gyeong Lee
- Department of Polymer Science and Engineering Inha University Incheon 22212 Republic of Korea
- Program in Environmental and Polymer Engineering Inha University Incheon 22212 Republic of Korea
| | - Jeong Jae Wie
- Department of Polymer Science and Engineering Inha University Incheon 22212 Republic of Korea
- Program in Environmental and Polymer Engineering Inha University Incheon 22212 Republic of Korea
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Nanostructured polycarbonate for robust transparency and anti-fogging by control of self-masking metallic clusters. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3273-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Linklater DP, De Volder M, Baulin VA, Werner M, Jessl S, Golozar M, Maggini L, Rubanov S, Hanssen E, Juodkazis S, Ivanova EP. High Aspect Ratio Nanostructures Kill Bacteria via Storage and Release of Mechanical Energy. ACS NANO 2018; 12:6657-6667. [PMID: 29851466 DOI: 10.1021/acsnano.8b01665] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The threat of a global rise in the number of untreatable infections caused by antibiotic-resistant bacteria calls for the design and fabrication of a new generation of bactericidal materials. Here, we report a concept for the design of antibacterial surfaces, whereby cell death results from the ability of the nanofeatures to deflect when in contact with attaching cells. We show, using three-dimensional transmission electron microscopy, that the exceptionally high aspect ratio (100-3000) of vertically aligned carbon nanotubes (VACNTs) imparts extreme flexibility, which enhances the elastic energy storage in CNTs as they bend in contact with bacteria. Our experimental and theoretical analyses demonstrate that, for high aspect ratio structures, the bending energy stored in the CNTs is a substantial factor for the physical rupturing of both Gram-positive and Gram-negative bacteria. The highest bactericidal rates (99.3% for Pseudomonas aeruginosa and 84.9% for Staphylococcus aureus) were obtained by modifying the length of the VACNTs, allowing us to identify the optimal substratum properties to kill different types of bacteria efficiently. This work highlights that the bactericidal activity of high aspect ratio nanofeatures can outperform both natural bactericidal surfaces and other synthetic nanostructured multifunctional surfaces reported in previous studies. The present systems exhibit the highest bactericidal activity of a CNT-based substratum against a Gram-negative bacterium reported to date, suggesting the possibility of achieving close to 100% bacterial inactivation on VACNT-based substrata.
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Affiliation(s)
- Denver P Linklater
- Faculty of Life and Social Sciences , Swinburne University of Technology , Hawthorn , Victoria 3122 , Australia
- Centre for Micro-Photonics and Industrial Research Institute Swinburne, Faculty of Science, Engineering and Technology , Swinburne University of Technology , Hawthorn , Victoria 3122 , Australia
| | - Michael De Volder
- Institute for Manufacturing, Department of Engineering , University of Cambridge , Cambridge CB3 0FS , United Kingdom
| | - Vladimir A Baulin
- Department d'Enginyeria Quimica , Universitat Rovira, Virgili , 26 Av. dels Paisos Catalans , 43007 Tarragona , Spain
| | - Marco Werner
- Department d'Enginyeria Quimica , Universitat Rovira, Virgili , 26 Av. dels Paisos Catalans , 43007 Tarragona , Spain
| | - Sarah Jessl
- Institute for Manufacturing, Department of Engineering , University of Cambridge , Cambridge CB3 0FS , United Kingdom
| | - Mehdi Golozar
- Institute for Manufacturing, Department of Engineering , University of Cambridge , Cambridge CB3 0FS , United Kingdom
| | - Laura Maggini
- Institute for Manufacturing, Department of Engineering , University of Cambridge , Cambridge CB3 0FS , United Kingdom
| | - Sergey Rubanov
- Advanced Microscopy Facility, Bio21 Institute , University of Melbourne , 30 Flemington Rd , Parkville , Victoria 3010 , Australia
| | - Eric Hanssen
- Advanced Microscopy Facility, Bio21 Institute , University of Melbourne , 30 Flemington Rd , Parkville , Victoria 3010 , Australia
| | - Saulius Juodkazis
- Centre for Micro-Photonics and Industrial Research Institute Swinburne, Faculty of Science, Engineering and Technology , Swinburne University of Technology , Hawthorn , Victoria 3122 , Australia
| | - Elena P Ivanova
- Faculty of Life and Social Sciences , Swinburne University of Technology , Hawthorn , Victoria 3122 , Australia
- School of Science, College of Science, Engineering and Health , RMIT University , GPO Box 2476, Melbourne , Victoria 3001 , Australia
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Park SJ, Zhao H, Kim S, De Volder M, John Hart A. Predictive Synthesis of Freeform Carbon Nanotube Microarchitectures by Strain-Engineered Chemical Vapor Deposition. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:4393-4403. [PMID: 27378165 DOI: 10.1002/smll.201601093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 04/27/2016] [Indexed: 06/06/2023]
Abstract
High-throughput fabrication of microstructured surfaces with multi-directional, re-entrant, or otherwise curved features is becoming increasingly important for applications such as phase change heat transfer, adhesive gripping, and control of electromagnetic waves. Toward this goal, curved microstructures of aligned carbon nanotubes (CNTs) can be fabricated by engineered variation of the CNT growth rate within each microstructure, for example by patterning of the CNT growth catalyst partially upon a layer which retards the CNT growth rate. This study develops a finite-element simulation framework for predictive synthesis of complex CNT microarchitectures by this strain-engineered growth process. The simulation is informed by parametric measurements of the CNT growth kinetics, and the anisotropic mechanical properties of the CNTs, and predicts the shape of CNT microstructures with impressive fidelity. Moreover, the simulation calculates the internal stress distribution that results from extreme deformation of the CNT structures during growth, and shows that delamination of the interface between the differentially growing segments occurs at a critical shear stress. Guided by these insights, experiments are performed to study the time- and geometry-depended stress development, and it is demonstrated that corrugating the interface between the segments of each microstructure mitigates the interface failure. This study presents a methodology for 3D microstructure design based on "pixels" that prescribe directionality to the resulting microstructure, and show that this framework enables the predictive synthesis of more complex architectures including twisted and truss-like forms.
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Affiliation(s)
- Sei Jin Park
- Department of Mechanical Engineering and Laboratory for Manufacturing and Productivity, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA, 02139, USA
| | - Hangbo Zhao
- Department of Mechanical Engineering and Laboratory for Manufacturing and Productivity, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA, 02139, USA
| | - Sanha Kim
- Department of Mechanical Engineering and Laboratory for Manufacturing and Productivity, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA, 02139, USA
| | - Michael De Volder
- Institute for Manufacturing, Department of Engineering, University of Cambridge, 17 Charles Babbage Road, Cambridge, CB3 0FS, UK
| | - A John Hart
- Department of Mechanical Engineering and Laboratory for Manufacturing and Productivity, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA, 02139, USA
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Wu LP, Zhang X, Chen Y, Chen LY, Gai JG. Fast water transmission of zigzag graphyne-3 nanotubes. RSC Adv 2016. [DOI: 10.1039/c6ra19898h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
We report the MD simulation of water molecules permeating fast through the wall of zigzag graphyne-3 nanotubes. The water fluxes are about 5 orders of magnitude higher than that of the commercial forward osmosis membranes.
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Affiliation(s)
- Li-Ping Wu
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Chengdu
- China
| | - Xin Zhang
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Chengdu
- China
| | - Yi Chen
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Chengdu
- China
| | - Li-Ye Chen
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Chengdu
- China
| | - Jing-Gang Gai
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Chengdu
- China
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Tawfick S, Zhao Z, Maschmann M, Brieland-Shoultz A, De Volder M, Baur JW, Lu W, Hart AJ. Mechanics of capillary forming of aligned carbon nanotube assemblies. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:5190-5198. [PMID: 23537107 DOI: 10.1021/la4002219] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Elastocapillary self-assembly is emerging as a versatile technique to manufacture three-dimensional (3D) microstructures and complex surface textures from arrangements of micro- and nanoscale filaments. Understanding the mechanics of capillary self-assembly is essential to engineering of properties such as shape-directed actuation, anisotropic wetting and adhesion, and mechanical energy transfer and dissipation. We study elastocapillary self-assembly (herein called "capillary forming") of carbon nanotube (CNT) microstructures, combining in situ optical imaging, micromechanical testing, and finite element modeling. By imaging, we identify sequential stages of liquid infiltration, evaporation, and solid shrinkage, whose kinetics relate to the size and shape of the CNT microstructure. We couple these observations with measurements of the orthotropic elastic moduli of CNT forests to understand how the dynamic of shrinkage of the vapor-liquid interface is coupled to the compression of the forest. We compare the kinetics of shrinkage to the rate of evporation from liquid droplets having the same size and geometry. Moreover, we show that the amount of shrinkage during evaporation is governed by the ability of the CNTs to slip against one another, which can be manipulated by the deposition of thin conformal coatings on the CNTs by atomic layer deposition (ALD). This insight is confirmed by finite element modeling of pairs of CNTs as corrugated beams in contact and highlights the coupled role of elasticity and friction in shrinkage and stability of nanoporous solids. Overall, this study shows that nanoscale porosity can be tailored via the filament density and adhesion at contact points, which is important to the development of lightweight multifunctional materials.
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Affiliation(s)
- Sameh Tawfick
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA
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De Volder M, Hart AJ. Synthese von hierarchischen Nanostrukturen durch elastokapillare Selbstorganisation. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201205944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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10
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De Volder M, Hart AJ. Engineering Hierarchical Nanostructures by Elastocapillary Self-Assembly. Angew Chem Int Ed Engl 2013; 52:2412-25. [DOI: 10.1002/anie.201205944] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Indexed: 11/08/2022]
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