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Nano-Micro Letters · 2024 ·Vol. 16 ·期 1 ·1-21 · IF 31.6

Naturally Crosslinked Biocompatible Carbonaceous Liquid Metal Aqueous Ink Printing Wearable Electronics for Multi-Sensing and Energy Harvesting

Chung King Yan,Xu Bingang,Tan Di,Yang Qingjun,Li Zihua,Fu Hong

Naturally crosslinked carbonaceous liquid metal aqueous printable ink mediated by biopolymers. E-textile with conductivity, stability, wearability, and aesthetic characteristics. Multi-applications in health monitoring, pressure sensing, and energy harvesting.

研究领域: 材料科学 · 电子工程 · 生物医学工程 · 纺织工程

✓ 已验证 DOI PubMed 高影响因子

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JOURNAL OF DENTISTRY · 2020 · IF 3.242

Anti-caries effect of resin infiltrant modified by quaternary ammonium monomers

Jinzhao Yu,Xiaoyu Huang,Xuedong Zhou,Qi Han,Wen Zhou,Jingou Liang,Hockin H.K. Xu,Biao Ren,Xian Peng,Michael D. Weir,Mingyun Li,Lei Cheng

Objectives Resin infiltrant is used in early enamel caries. However, commercial resin infiltrant lacks persistent antibacterial activity. Dimethylaminododecyl methacrylate (DMADDM) was added to resin infiltrant to give it sustainable antibacterial properties and inhibit demineralization. Methods After the application of resin infiltrant to bovine enamel, cytotoxicity, surface roughness, and aesthetics were assessed. A multi-species biofilm was incubated on the enamel disk before and one month after microbial-aging. After a 48-h anaerobic incubation, biomass accumulation, metabolic activity, and lactic acid were analyzed using a crystal violet assay, an MTT (3-(4,5-dimethyl-thiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay, and a lactic acid assay. Biofilm structure and composition were determined by live/dead staining, exopolysaccharide (EPS) staining, scanning electron microscopy (SEM), and quantitative polymerase chain reaction (qPCR). The depth and content of demineralization were tested by transverse microradiography (TMR). Results Incorporating DMADDM did not increase the cytotoxicity or change the physical properties when the mass fraction of the DMADDM was 2.5–10 %. The modification decreased the amount of bacterial biofilm, metabolic activity, lactic acid production, EPS, and the proportion of Streptococcus mutans in the biofilms. It also provided anti-demineralization effects. The surface roughness and antibacterial ability were not changed after one month of microbial-aging. Conclusion The incorporation of DMADDM improved the antibacterial and anti-demineralization effects of the material. It demonstrated a sustained antibacterial effect. Clinical significance The antibacterial modification might be a potential choice for future clinical applications to inhibit early enamel caries.

CAS / MDL: 64-17-5

研究领域: 牙科材料 · 口腔微生物学 · 龋齿预防

✓ 已验证产品关联 DOI PubMed 高影响因子

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Naturally Crosslinked Biocompatible Carbonaceous Liquid Metal Aqueous Ink Printing Wearable Electronics for Multi-Sensing and Energy Harvesting

Anti-caries effect of resin infiltrant modified by quaternary ammonium monomers