An imidazolium-based zwitterionic polymer for antiviral and antibacterial dual functional coatings

Abstract

An imidazolium-based zwitterionic polymer is reported with dual functions of antivirus and antifouling with broad applicability.

Zwitterionic Bifunctional Layer for Reversible Zn Anode

“…Then, the PZIL layer on Zn foil was also characterized by X-ray photoelectron spectroscopy (XPS). The peak at 401.7 eV corresponded to the N + in the imidazolium moiety, which proves successful conversion of the imidazole moiety into the imidazolium moiety . Meanwhile, the characteristic peaks of C–C, C–O, and CO could be observed in C 1s, and CO and C–O could also be observed in O 1s, suggesting the existence of the PZIL artificial interface layer (Figure S3).…”

“…The peak at 401.7 eV corresponded to the N + in the imidazolium moiety, which proves successful conversion of the imidazole moiety into the imidazolium moiety. 34 Meanwhile, the characteristic peaks of C−C, C−O, and CO could be observed in C 1s, and CO and C−O could also be observed in O 1s, suggesting the existence of the PZIL artificial interface layer (Figure S3). 35 To explore the protective ability of the PZIL layer on the Zn foil, bare Zn and PZIL-Zn were soaked in 2 M ZnSO 4 solution for 10 days.…”

Zwitterionic Polymer Gradient Interphases for Reversible Zinc Electrochemistry in Aqueous Alkaline Electrolytes

“…As illustrated in Figure b, a nongradient (NG) interphase, zwitterion-gradient (ZG) interphase, and completely zwitterion (CZ) interphase were synthesized by a two-step method that is reported in our previous work. , In the first synthesis step, a well-defined poly­(4-vinylpyridine- co -divinylbenzene) (p4VP) film was fabricated using the iCVD technology with a controlled thickness at the nanometer level. Specifically, 4 sccm of 4-vinylpyridine (4VP), 0.15 sccm of divinylbenzene (DVB), and 0.6 sccm of initiator ( tert -butylperoxide, TBPO) were introduced into a vacuum chamber (0.5 Torr) in which electrodes were placed on a cooled stage (25 °C).…”

“…In contrast, if the coating thickness is greater than the penetration depth, the polymer coating exhibits a concentration gradient from p(4-VPPS) to p(4VP) decaying approximately exponentially. 28 To characterize the penetration depth, an 800 nm p(4VP) was deposited on a freshly polished Zn plate followed by the derivatization. X-ray photoelectron spectroscopy (XPS) was performed to capture the nanometer-scale depth profiling.…”

Thermoplastic elastomers containing antimicrobial and antiviral additives for mobility applications

“…At 60 min, there was a 99.95% reduction and high antiviral activity (3.33 log 10 ). By increasing the contact time between the viruses and the sample, the antiviral efficiency was raised due to the combined effect of the antimicrobial materials chemistry (higher biocidal release from the sample surface affecting more of the viral viability) and dehydration of virus particles [ 44 ].…”