Non-Leaching, Rapid Bactericidal and Biocompatible Polyester Fabrics Finished with Benzophenone Terminated N-halamine

Abstract

Pathogenic bacteria can proliferate rapidly on porous fabrics to form bacterial plaques/biofilms, resulting in potential sources of cross-transmissions of diseases and increasing cross-infection in public environments. Many works on antibacterial modification of cotton fabrics have been reported, while very few works were reported to endow poly(ethylene terephthalate) (PET) fabrics with non-leaching antibacterial function without compromising their innate physicochemical properties though PET is the most widely used fabric. Therefore, it is urgent to impart the PET fabrics with non-leaching antibacterial activity. Herein, a novel N- halamine compound, 1-chloro-3-benzophenone-5,5-dimethylhydantoin (Cl-BPDMH), was developed to be covalently bonded onto PET fabrics, rendering non-leaching antibacterial activity while negligible cytotoxicity based on contact-killing principle. Bacterial was easily adhered to Cl-BPDMH finished PET fabrics, and then it was inactivated quickly within 10 s. Furthermore, the breaking strength, breaking elongation, tearing strength, water vapor permeability, air permeability and whiteness of Cl-BPDMH finished PET fabrics were improved obviously compared to raw PET fabrics. Hence, this work developed a facile approach to fabricate multifunctional synthetic textiles to render outstanding and rapid bactericidal activity without compromising their physicochemical properties and biocompatibility. Supplementary Information The online version contains supplementary material available at 10.1007/s42765-021-00100-z.

Dual Coordination between Stereochemistry and Cations Endows Polyethylene Terephthalate Fabrics with Diversiform Antimicrobial Abilities for Attack and Defense

“…Polyethylene terephthalate (PET) fabrics have been used in a wide range of applications such as apparel, food packaging, and medical materials due to their excellent mechanical strength, ease of processing, quick drying, and dimensional stability. , However, PET fabrics are usually porous three-dimensional structures that are vulnerable to the growth of host microorganisms and serve as a transfer medium for pathogens causing potential microbial cross-contamination. − In addition, fungal contamination of PET fabrics under humid environments is also very serious, which can easily cause irreversible cosmetic damage to the fabrics . Therefore, it is of great importance to endow PET fabrics with diversiform antimicrobial abilities.…”

Reusable Cu2-xS-modified masks with infrared lamp-driven antibacterial and antiviral activity for real-time personal protection

“…However, the modified N95 respiratory masks have a weak antiviral efficiency. The second strategy is to load organic photosensitizers on cotton fibers to achieve the solar-induced generation of cytotoxic radical oxygen species [31] , [32] , [33] , [34] , [35] , [36] . For example, the surgery facemasks were firstly surface-modified with 2-diethylaminoethyl chloride polycationic short chains and then reacted with Rose Bengal and anthraquinone-2-sulfonic acid sodium salt monohydrate photosensitizers, which produced radical oxygen species to against bacteria (e.g., E. coli and grampositive Listeria innocua ) under the sunlight illumination [32] .…”

Controlled Surface Radical Graft Polymerization of N-Halamine Monomers on Polyester Fabrics and Potential Application in Bioprotective Medical Scrubs

“…N -Halamine, with high biocidal efficacy, broad killing spectrum of pathogens, and ease of chlorine rechargeability, which has been successfully applied on cotton fabrics and olefin nonwovens, is a great promise to be incorporated with PET fabrics for constructing bioprotective medical scrubs. − Despite their outstanding potential, the major challenge associated with the fabrication of N -halamine-modified PET fabrics is the intrinsically chemical inert property of the PET fibers. , In the previous work, a halamine precursor monomer, 3-allyl-5,5-dimethylimidazolidine-2,4-dione (ADMH), was covalently bonded to the PET fabric through a typical “pad-dry-cure” process, demonstrating an industrially scalable methodology to produce a halamine-based biocidal PET fabric (PET-g-ADMH) . However, the grafting ratio of ADMH was not desirable due to the self-inhibiting effect of the allyl structure and poor affinity of the reaction system, limiting the biocidal activity of the PET-g-ADMH fabric against pathogens. , The previous results inspired us to design ideal biocidal polyester fabrics via two approaches: (1) applying a new halamine precursor with the desired reactivity of radical graft polymerization reaction and (2) designing an appropriate free radical reaction system with improved grafting efficiency in a commercial application setting.…”