Optimizing chemical and mechanical stability of catalytic nanofiber web for development of efficient detoxification cloths against CWAs

Seo, Eunbyeol; Kim, Hye-Jin; Bae, Kihyeon; Jung, Heesoo; Jung, Hakyung; Lee, Kyung Jin

doi:10.1016/j.polymer.2020.123262

Cited by 3 publications

(1 citation statement)

References 38 publications

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“…Herein, we report the preparation of RJP containing controllable polymer chain lengths with azide pendant groups that can be easily substituted with various biomolecules via click reaction. [38][39][40][41][42][43][44][45][46] Among the surface brushing methods, we used GT and GF method to control the molecular weight of the surface brush, which is directly related to the density of the azide groups on the surface. Sensitivity against biotargets has also been compared in terms of the number of surface functional groups via retroreflective sensing methods, [27,28] and the quantity of azide groups on the RJP surface was found to affect the sensitivity of target DNA detection.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Sensitivity for Retroreflection‐Based Biosensor by Controlling Polymer Brush on Janus Particles

Xu,

Choi,

Yoo

et al. 2024

Macro Chemistry & Physics

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Among the methods for onsite detection of specific biomolecules, the use of retroreflective Janus particles (RJPs) is a simple and efficient method for biophotonic probes to detect biotarget molecules with spatioselectivity, which can make the RJPs align toward light sources after capturing the target biomolecules, enhancing retroreflection. Because RJP has two distinct regions with different properties, specific reagents can be easily functionalized through chemical reactions between the functional groups and biotarget molecules. The number of functional groups on RJP will be the critical parameter for efficiency of sensing ability. Here, we introduce clickable (azide) polymer brush on surface of RJP via different surface polymerization methods (grafting to and grafting from method). Azide groups allow for the easy modification of dibenzocyclooctyne‐linked biomolecules onto silica particles through click chemistry. We prepare RJPs with different quantities of azide functional groups on their surfaces via solvent volatilization method and metal deposition. Using a retroreflective immunosensing system, we perform sensitive detection of target biomolecules.This article is protected by copyright. All rights reserved

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Section: Introductionmentioning

confidence: 99%

Enhancement of Sensitivity for Retroreflection‐Based Biosensor by Controlling Polymer Brush on Janus Particles

Xu,

Choi,

Yoo

et al. 2024

Macro Chemistry & Physics

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Post-crosslinkable thermoplastic polyurethane for control of mechanical properties after processes

Kim

Lee

2021

Polymer

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Mild In Situ Growth Strategy for Constructing High-Strength Zr-MOFs/PVDF Fabrics and Efficient Degradation of Chemical Warfare Agent Simulants

Han,

Sheng,

Qin

et al. 2024

ACS Appl. Polym. Mater.

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Zirconium-based metal organic frameworks (Zr-MOFs) exhibit rich porosity and superior catalytic activity, endowing them significant potential in the application of catalytic detoxification. Self-cleaning textiles developed by integrating Zr-MOFs into fibrous carriers represent an ideal form of protective material against chemical warfare agents (CWAs). Nanofibers have been extensively explored as substrates for flexible Zr-MOF textiles owing to their high specific surface areas and porosities. However, achieving a uniform and robust loading of Zr-MOFs onto nanofibers while maintaining their excellent mechanical properties remains challenging. In this study, we propose a methodology for preparing high-strength polyvinylidene fluoride (PVDF) nanofiber/Zr-MOFs flexible textiles. We introduce a mild in situ growth strategy that incorporates trisubstituted triazine (TTMA) as a crosslinking agent, successfully enabling the uniform growth of UiO-66-NH 2 on PVDF nanofiber surfaces at 60 °C and ambient pressure. TTMA exhibited excellent dual-functional characteristics, promoting fiber cross-linking to enhance the mechanical strength of PVDF, while its abundant carbonyl groups served as active sites to induce rapid growth and secure attachment of UiO-66-NH 2 . The resulting UiO-66-NH 2 @PTH (nanofibers grew membranes with different TTMA contents) composite membranes exhibited outstanding flexibility and mechanical properties, with tensile strengths reaching up to 18.87 MPa. The uniformly and tightly loaded UiO-66-NH 2 particles conferred exceptional catalytic degradation performance against CWA simulants, achieving degradation efficiencies of 99.15 and 99.24% for the CWA simulants 2-chloroethyl ethyl sulfide and dimethyl 4-nitrophenyl phosphate, respectively, with excellent stability and durability. Additionally, the UiO-66-NH 2 @PTH displays superior moisture vapor permeability, with a moisture vapor transmission rate of 5179.3 g/m 2 •24 h, ensuring a balance between protection and comfort. This simple and feasible strategy may also be applicable to other nanofiber/MOF combinations, offering insights and methods for developing high-performance protective materials against CWAs.

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Optimizing chemical and mechanical stability of catalytic nanofiber web for development of efficient detoxification cloths against CWAs

Cited by 3 publications

References 38 publications

Enhancement of Sensitivity for Retroreflection‐Based Biosensor by Controlling Polymer Brush on Janus Particles

Enhancement of Sensitivity for Retroreflection‐Based Biosensor by Controlling Polymer Brush on Janus Particles

Post-crosslinkable thermoplastic polyurethane for control of mechanical properties after processes

Mild In Situ Growth Strategy for Constructing High-Strength Zr-MOFs/PVDF Fabrics and Efficient Degradation of Chemical Warfare Agent Simulants

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