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Reusable mechano-bactericidal surface with echinoid-shaped hierarchical micro/nano-structure
Biofilms formed owing to the attachment of bacteria to surfaces have caused various problems in industries such as marine transportation/logistics and medicine. In response, many studies have been conducted on bactericidal surfaces, and nanostructured surfaces mimicking cicada and dragonfly wings ar...
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Published in: | Colloids and surfaces, B, Biointerfaces B, Biointerfaces, 2024-02, Vol.234, p.113729-113729, Article 113729 |
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creator | Kim, Hee-Kyeong Baek, Hyeon Woo Park, Hyun-Ha Cho, Young-Sam |
description | Biofilms formed owing to the attachment of bacteria to surfaces have caused various problems in industries such as marine transportation/logistics and medicine. In response, many studies have been conducted on bactericidal surfaces, and nanostructured surfaces mimicking cicada and dragonfly wings are emerging as candidates for mechano-bactericidal surfaces. In specific circumstances involving mechano-bactericidal activity, certain nanostructured surfaces could exhibit their bactericidal effects by directly deforming the membranes of bacteria that adhere to these nanostructures. Additionally, in most cases, debris of bacterial cells may accumulate on these nanostructured surfaces. Such accumulation poses a significant challenge: it diminishes the mechano-bactericidal effectiveness of the surface, as it hinders the direct interaction between the nanostructures and any new bacteria that attach subsequently. In specific circumstances involving mechano-bactericidal activity, certain nanostructured surfaces could exhibit their bactericidal effects by directly deforming the membranes of bacteria that adhere to these nanostructures. Additionally, in most cases, debris of bacterial cells may accumulate on these nanostructured surfaces. Such accumulation poses a significant challenge: it diminishes the mechano-bactericidal effectiveness of the surface, as it hinders the direct interaction between the nanostructures and any new bacteria that attach subsequently.In other words, there is a need for strategies to remove the accumulated bacterial debris in order to sustain the mechano-bactericidal effect of the nanostructured surface. In this study, hierarchical micro/nano-structured surface (echinoid-shaped nanotextures were formed on Al micro-particle’s surfaces) was fabricated using a simple pressure-less sintering method, and effective bactericidal efficiency was shown against E. coli (97 ± 3.81%) and S. aureus (80 ± 9.34%). In addition, thermal cleaning at 500 °C effectively eliminated accumulated dead bacterial debris while maintaining the intact Al2O3 nanostructure, resulting in significant mechano-bactericidal activity (E. coli: 89 ± 6.86%, S. aureus: 75 ± 8.31%). As a result, thermal cleaning maintains the intact nanostructure and allows the continuance of the mechano-bactericidal effect. This effect was consistently maintained even after five repetitive use (E. coli: 80 ± 16.26%, S. aureus: 76 ± 12.67%).
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•The echinoid-shaped hierarchical surfa |
doi_str_mv | 10.1016/j.colsurfb.2023.113729 |
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[Display omitted]
•The echinoid-shaped hierarchical surface was prepared via the sintering methods.•The proposed surface exhibited remarkably high mechano-bactericidal efficiency.•The mechano-bactericidal function was well maintained after thermal cleaning.•The mechano-bactericidal efficiency was maintained after 5 rounds of reuse testing.</description><identifier>ISSN: 0927-7765</identifier><identifier>EISSN: 1873-4367</identifier><identifier>DOI: 10.1016/j.colsurfb.2023.113729</identifier><identifier>PMID: 38160475</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Al2O3 (Aluminum Oxide) ; Echinoid-shape ; Hierarchical micro/nano-structure ; Mechano-bactericidal ; Reusable surface</subject><ispartof>Colloids and surfaces, B, Biointerfaces, 2024-02, Vol.234, p.113729-113729, Article 113729</ispartof><rights>2023 Elsevier B.V.</rights><rights>Copyright © 2023 Elsevier B.V. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c368t-8fbedb8baae0e598795aa6315a8bbacabad80ebe03fb5615fec35a3540ff2dc63</citedby><cites>FETCH-LOGICAL-c368t-8fbedb8baae0e598795aa6315a8bbacabad80ebe03fb5615fec35a3540ff2dc63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/38160475$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Kim, Hee-Kyeong</creatorcontrib><creatorcontrib>Baek, Hyeon Woo</creatorcontrib><creatorcontrib>Park, Hyun-Ha</creatorcontrib><creatorcontrib>Cho, Young-Sam</creatorcontrib><title>Reusable mechano-bactericidal surface with echinoid-shaped hierarchical micro/nano-structure</title><title>Colloids and surfaces, B, Biointerfaces</title><addtitle>Colloids Surf B Biointerfaces</addtitle><description>Biofilms formed owing to the attachment of bacteria to surfaces have caused various problems in industries such as marine transportation/logistics and medicine. In response, many studies have been conducted on bactericidal surfaces, and nanostructured surfaces mimicking cicada and dragonfly wings are emerging as candidates for mechano-bactericidal surfaces. In specific circumstances involving mechano-bactericidal activity, certain nanostructured surfaces could exhibit their bactericidal effects by directly deforming the membranes of bacteria that adhere to these nanostructures. Additionally, in most cases, debris of bacterial cells may accumulate on these nanostructured surfaces. Such accumulation poses a significant challenge: it diminishes the mechano-bactericidal effectiveness of the surface, as it hinders the direct interaction between the nanostructures and any new bacteria that attach subsequently. In specific circumstances involving mechano-bactericidal activity, certain nanostructured surfaces could exhibit their bactericidal effects by directly deforming the membranes of bacteria that adhere to these nanostructures. Additionally, in most cases, debris of bacterial cells may accumulate on these nanostructured surfaces. Such accumulation poses a significant challenge: it diminishes the mechano-bactericidal effectiveness of the surface, as it hinders the direct interaction between the nanostructures and any new bacteria that attach subsequently.In other words, there is a need for strategies to remove the accumulated bacterial debris in order to sustain the mechano-bactericidal effect of the nanostructured surface. In this study, hierarchical micro/nano-structured surface (echinoid-shaped nanotextures were formed on Al micro-particle’s surfaces) was fabricated using a simple pressure-less sintering method, and effective bactericidal efficiency was shown against E. coli (97 ± 3.81%) and S. aureus (80 ± 9.34%). In addition, thermal cleaning at 500 °C effectively eliminated accumulated dead bacterial debris while maintaining the intact Al2O3 nanostructure, resulting in significant mechano-bactericidal activity (E. coli: 89 ± 6.86%, S. aureus: 75 ± 8.31%). As a result, thermal cleaning maintains the intact nanostructure and allows the continuance of the mechano-bactericidal effect. This effect was consistently maintained even after five repetitive use (E. coli: 80 ± 16.26%, S. aureus: 76 ± 12.67%).
[Display omitted]
•The echinoid-shaped hierarchical surface was prepared via the sintering methods.•The proposed surface exhibited remarkably high mechano-bactericidal efficiency.•The mechano-bactericidal function was well maintained after thermal cleaning.•The mechano-bactericidal efficiency was maintained after 5 rounds of reuse testing.</description><subject>Al2O3 (Aluminum Oxide)</subject><subject>Echinoid-shape</subject><subject>Hierarchical micro/nano-structure</subject><subject>Mechano-bactericidal</subject><subject>Reusable surface</subject><issn>0927-7765</issn><issn>1873-4367</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNqFkE1rGzEQhkVJaFy3fyHsMZe1pdXqY28NJmkDhkJJbgExkmaxzH640m5C_n1kHOfa08DwzLwzDyHXjK4YZXK9X7mxS3Ns7aqiFV8xxlXVfCELphUvay7VBVnQplKlUlJckW8p7SmlVc3UV3LFNZO0VmJBnv_inMB2WPTodjCMpQU3YQwueOiKYwI4LF7DtCsyEIYx-DLt4IC-2AWMEHPTZbIPLo7r4bghTXF20xzxO7lsoUv446MuydP93ePmd7n98-thc7stHZd6KnVr0VttAZCiaLRqBIDkTIC2-Rqw4DVFi5S3VkgmWnRcABc1bdvKO8mX5Oa09xDHfzOmyfQhOew6GHCck6ka2lAtmK4zKk9ovjaliK05xNBDfDOMmqNZszdns-Zo1pzM5sHrj4zZ9ug_x84qM_DzBGD-9CWrMckFHBz6ENFNxo_hfxnvuzmQ5Q</recordid><startdate>20240201</startdate><enddate>20240201</enddate><creator>Kim, Hee-Kyeong</creator><creator>Baek, Hyeon Woo</creator><creator>Park, Hyun-Ha</creator><creator>Cho, Young-Sam</creator><general>Elsevier B.V</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20240201</creationdate><title>Reusable mechano-bactericidal surface with echinoid-shaped hierarchical micro/nano-structure</title><author>Kim, Hee-Kyeong ; Baek, Hyeon Woo ; Park, Hyun-Ha ; Cho, Young-Sam</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c368t-8fbedb8baae0e598795aa6315a8bbacabad80ebe03fb5615fec35a3540ff2dc63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Al2O3 (Aluminum Oxide)</topic><topic>Echinoid-shape</topic><topic>Hierarchical micro/nano-structure</topic><topic>Mechano-bactericidal</topic><topic>Reusable surface</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kim, Hee-Kyeong</creatorcontrib><creatorcontrib>Baek, Hyeon Woo</creatorcontrib><creatorcontrib>Park, Hyun-Ha</creatorcontrib><creatorcontrib>Cho, Young-Sam</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Colloids and surfaces, B, Biointerfaces</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kim, Hee-Kyeong</au><au>Baek, Hyeon Woo</au><au>Park, Hyun-Ha</au><au>Cho, Young-Sam</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Reusable mechano-bactericidal surface with echinoid-shaped hierarchical micro/nano-structure</atitle><jtitle>Colloids and surfaces, B, Biointerfaces</jtitle><addtitle>Colloids Surf B Biointerfaces</addtitle><date>2024-02-01</date><risdate>2024</risdate><volume>234</volume><spage>113729</spage><epage>113729</epage><pages>113729-113729</pages><artnum>113729</artnum><issn>0927-7765</issn><eissn>1873-4367</eissn><abstract>Biofilms formed owing to the attachment of bacteria to surfaces have caused various problems in industries such as marine transportation/logistics and medicine. In response, many studies have been conducted on bactericidal surfaces, and nanostructured surfaces mimicking cicada and dragonfly wings are emerging as candidates for mechano-bactericidal surfaces. In specific circumstances involving mechano-bactericidal activity, certain nanostructured surfaces could exhibit their bactericidal effects by directly deforming the membranes of bacteria that adhere to these nanostructures. Additionally, in most cases, debris of bacterial cells may accumulate on these nanostructured surfaces. Such accumulation poses a significant challenge: it diminishes the mechano-bactericidal effectiveness of the surface, as it hinders the direct interaction between the nanostructures and any new bacteria that attach subsequently. In specific circumstances involving mechano-bactericidal activity, certain nanostructured surfaces could exhibit their bactericidal effects by directly deforming the membranes of bacteria that adhere to these nanostructures. Additionally, in most cases, debris of bacterial cells may accumulate on these nanostructured surfaces. Such accumulation poses a significant challenge: it diminishes the mechano-bactericidal effectiveness of the surface, as it hinders the direct interaction between the nanostructures and any new bacteria that attach subsequently.In other words, there is a need for strategies to remove the accumulated bacterial debris in order to sustain the mechano-bactericidal effect of the nanostructured surface. In this study, hierarchical micro/nano-structured surface (echinoid-shaped nanotextures were formed on Al micro-particle’s surfaces) was fabricated using a simple pressure-less sintering method, and effective bactericidal efficiency was shown against E. coli (97 ± 3.81%) and S. aureus (80 ± 9.34%). In addition, thermal cleaning at 500 °C effectively eliminated accumulated dead bacterial debris while maintaining the intact Al2O3 nanostructure, resulting in significant mechano-bactericidal activity (E. coli: 89 ± 6.86%, S. aureus: 75 ± 8.31%). As a result, thermal cleaning maintains the intact nanostructure and allows the continuance of the mechano-bactericidal effect. This effect was consistently maintained even after five repetitive use (E. coli: 80 ± 16.26%, S. aureus: 76 ± 12.67%).
[Display omitted]
•The echinoid-shaped hierarchical surface was prepared via the sintering methods.•The proposed surface exhibited remarkably high mechano-bactericidal efficiency.•The mechano-bactericidal function was well maintained after thermal cleaning.•The mechano-bactericidal efficiency was maintained after 5 rounds of reuse testing.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>38160475</pmid><doi>10.1016/j.colsurfb.2023.113729</doi><tpages>1</tpages></addata></record> |
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subjects | Al2O3 (Aluminum Oxide) Echinoid-shape Hierarchical micro/nano-structure Mechano-bactericidal Reusable surface |
title | Reusable mechano-bactericidal surface with echinoid-shaped hierarchical micro/nano-structure |
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