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ZnO Quantum Photoinitiators as an All-in-One Solution for Multifunctional Photopolymer Nanocomposites

[Image: see text] Nanocomposites are constructed from a matrix material combined with dispersed nanosized filler particles. Such a combination yields a powerful ability to tailor the desired mechanical, optical, electrical, thermodynamic, and antimicrobial material properties. Colloidal semiconducto...

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Autores principales: Naor, Tom, Gigi, Shira, Waiskopf, Nir, Jacobi, Gila, Shoshani, Sivan, Kam, Doron, Magdassi, Shlomo, Banin, Ehud, Banin, Uri
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10604079/
https://www.ncbi.nlm.nih.gov/pubmed/37787507
http://dx.doi.org/10.1021/acsnano.3c06518
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author Naor, Tom
Gigi, Shira
Waiskopf, Nir
Jacobi, Gila
Shoshani, Sivan
Kam, Doron
Magdassi, Shlomo
Banin, Ehud
Banin, Uri
author_facet Naor, Tom
Gigi, Shira
Waiskopf, Nir
Jacobi, Gila
Shoshani, Sivan
Kam, Doron
Magdassi, Shlomo
Banin, Ehud
Banin, Uri
author_sort Naor, Tom
collection PubMed
description [Image: see text] Nanocomposites are constructed from a matrix material combined with dispersed nanosized filler particles. Such a combination yields a powerful ability to tailor the desired mechanical, optical, electrical, thermodynamic, and antimicrobial material properties. Colloidal semiconductor nanocrystals (SCNCs) are exciting potential fillers, as they display size-, shape-, and composition-controlled properties and are easily embedded in diverse matrices. Here we present their role as quantum photoinitiators (QPIs) in acrylate-based polymer, where they act as a catalytic radical initiator and endow the system with mechanical, photocatalytic, and antimicrobial properties. By utilizing ZnO nanorods (NRs) as QPIs, we were able to increase the tensile strength and elongation at break of poly(ethylene glycol) diacrylate (PEGDA) hydrogels by up to 85%, unlike the use of the same ZnO NRs acting merely as fillers. Simultaneously, we endowed the PEGDA hydrogels with post-polymerization photocatalytic and antimicrobial activities and showed their ability to decompose methylene blue and significantly eradicate antibiotic-resistant bacteria and viral pathogens. Moreover, we demonstrate two fabrication showcase methods, traditional molding and digital light processing printing, that can yield hydrogels with complex architectures. These results position SCNC-based systems as promising candidates to act as all-in-one photoinitiators and fillers in nanocomposites for diverse biomedical applications, where specific and purpose-oriented characteristics are required.
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spelling pubmed-106040792023-10-28 ZnO Quantum Photoinitiators as an All-in-One Solution for Multifunctional Photopolymer Nanocomposites Naor, Tom Gigi, Shira Waiskopf, Nir Jacobi, Gila Shoshani, Sivan Kam, Doron Magdassi, Shlomo Banin, Ehud Banin, Uri ACS Nano [Image: see text] Nanocomposites are constructed from a matrix material combined with dispersed nanosized filler particles. Such a combination yields a powerful ability to tailor the desired mechanical, optical, electrical, thermodynamic, and antimicrobial material properties. Colloidal semiconductor nanocrystals (SCNCs) are exciting potential fillers, as they display size-, shape-, and composition-controlled properties and are easily embedded in diverse matrices. Here we present their role as quantum photoinitiators (QPIs) in acrylate-based polymer, where they act as a catalytic radical initiator and endow the system with mechanical, photocatalytic, and antimicrobial properties. By utilizing ZnO nanorods (NRs) as QPIs, we were able to increase the tensile strength and elongation at break of poly(ethylene glycol) diacrylate (PEGDA) hydrogels by up to 85%, unlike the use of the same ZnO NRs acting merely as fillers. Simultaneously, we endowed the PEGDA hydrogels with post-polymerization photocatalytic and antimicrobial activities and showed their ability to decompose methylene blue and significantly eradicate antibiotic-resistant bacteria and viral pathogens. Moreover, we demonstrate two fabrication showcase methods, traditional molding and digital light processing printing, that can yield hydrogels with complex architectures. These results position SCNC-based systems as promising candidates to act as all-in-one photoinitiators and fillers in nanocomposites for diverse biomedical applications, where specific and purpose-oriented characteristics are required. American Chemical Society 2023-10-03 /pmc/articles/PMC10604079/ /pubmed/37787507 http://dx.doi.org/10.1021/acsnano.3c06518 Text en © 2023 American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Naor, Tom
Gigi, Shira
Waiskopf, Nir
Jacobi, Gila
Shoshani, Sivan
Kam, Doron
Magdassi, Shlomo
Banin, Ehud
Banin, Uri
ZnO Quantum Photoinitiators as an All-in-One Solution for Multifunctional Photopolymer Nanocomposites
title ZnO Quantum Photoinitiators as an All-in-One Solution for Multifunctional Photopolymer Nanocomposites
title_full ZnO Quantum Photoinitiators as an All-in-One Solution for Multifunctional Photopolymer Nanocomposites
title_fullStr ZnO Quantum Photoinitiators as an All-in-One Solution for Multifunctional Photopolymer Nanocomposites
title_full_unstemmed ZnO Quantum Photoinitiators as an All-in-One Solution for Multifunctional Photopolymer Nanocomposites
title_short ZnO Quantum Photoinitiators as an All-in-One Solution for Multifunctional Photopolymer Nanocomposites
title_sort zno quantum photoinitiators as an all-in-one solution for multifunctional photopolymer nanocomposites
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10604079/
https://www.ncbi.nlm.nih.gov/pubmed/37787507
http://dx.doi.org/10.1021/acsnano.3c06518
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