拉曼光谱

Protein adsorption capability on polyurethane and modified-polyurethane membrane for periodontal guided tissue regeneration applications

ty10086 提交于 周四, 08/26/2021 - 13:26
Abstract(#br)Periodontal disease if left untreated can result in creation of defects within the alveolar ridge. Barrier membranes are frequently used with or without bone replacement graft materials for achieving periodontal guided tissue regeneration (GTR). Surface properties of barrier membranes play a vital role in their functionality and clinical success. In this study polyetherurethane (PEU) membranes were synthesized by using 4,4′-methylene-diphenyl diisocyanate (MDI), polytetramethylene oxide (PTMO) and 1,4-butane diol (BDO) as a chain extender via solution polymerization.

Fabrication and photoelectric properties of a graphene-silicon nanowire heterojunction on a flexible polytetrafluoroethylene substrate

ty10086 提交于 周四, 08/26/2021 - 12:44
Abstract(#br)In order to realize a flexible visible-near-infrared (VIS-NIR) photodetector, Si nanowires (SiNWs) were prepared on graphene (Gr) by using metal-catalyzed chemical vapor deposition, and then the Gr/SiNWs heterojunction was transferred onto a flexible polytetrafluoroethylene (PTFE) substrate by using a polymethylmethacrylate (PMMA)/polydimethylsiloxane (PDMS) as a double-layer support film. The transfer process of the flexible Gr/SiNWs heterojunction was successful.

采用超疏水诱导富集的干液滴法稳定超灵敏地分析有机污染物和重金属

ty10086 提交于 周三, 08/25/2021 - 15:58
本文报道了一种超疏水诱导富集的干液滴法( DDM )用于有机污染物和重金属的稳定超灵敏分析。制备了超疏水( SHB )基底作为DDM的分析检测平台。将聚二甲基硅氧烷( PDMS )和二氧化钛纳米颗粒( TiO2 NPs )依次包复在玻璃基底表面,合成了这种SHB基底。在液滴干燥过程中,演示了SHB底物抑制咖啡环效应( CRE ),富集分析物浓度。结合拉曼光谱对亚甲基蓝( MB )进行分析,结合激光诱导击穿光谱( LIBS )对铬( Cr )进行分析,结果表明该方法对有机污染物和重金属检测具有较高的稳定性和超灵敏度。总体而言,超疏水诱导富集的DDM在需要稳定和超灵敏分析的应用中具有巨大潜力。

采用超疏水诱导富集的干液滴法稳定超灵敏地分析有机污染物和重金属。

ty10086 提交于 周三, 08/25/2021 - 15:53
本文报道了一种超疏水诱导富集的干液滴法( DDM )用于有机污染物和重金属的稳定超灵敏分析。制备了超疏水( SHB )基底作为DDM的分析检测平台。将聚二甲基硅氧烷( PDMS )和二氧化钛纳米颗粒( TiO2 NPs )依次包复在玻璃基底表面,合成了这种SHB基底。在液滴干燥过程中,演示了SHB底物抑制咖啡环效应( CRE ),富集分析物浓度。结合拉曼光谱对亚甲基蓝( MB )进行分析,结合激光诱导击穿光谱( LIBS )对铬( Cr )进行分析,结果表明该方法对有机污染物和重金属检测具有较高的稳定性和超灵敏度。总体而言,超疏水诱导富集的DDM在需要稳定和超灵敏分析的应用中具有巨大潜力。