私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

當(dāng)前位置:> 首頁 > 最新動態(tài) > 正文
國慶中秋上新!ACS Appl Mater Interfaces: 抗菌、組織黏附型兩性離子水凝膠

Biotissue adhesives and antibacterial materials have great potential applications in wound dressing, implantable devices, and bioelectronics. In this study, stretchable tissue adhesive hydrogels with intrinsic antibacterial properties have been demonstrated by copolymerizing zwitterionic monomers with ionic monomers. The hydrogels are stretchable to about 900% strain and show a modulus of 4–9 kPa. The zwitterionic moieties provide strong dipole–dipole interaction, electrostatic interaction, and hydrogen bonding with the skin surface, and thus show adhesion strength values of 1–4 kPa to skin. Meanwhile, the copolymerized cationic or anionic monomers break the intrinsic electrostatic stoichiometry of the zwitterionic units and thus mediate the electrostatic interactions and the adhesion strength with the surface. The stretchable hydrogels form a robust and compliant (due to low modulus and stretchability) adhesive to skin, rubber, glass, and plastics, and could be repeatedly peeled-off and readhered to the skin. Moreover, the abundant quaternary ammonium (QA) groups in the zwitterionic moieties and the added QA groups endow it outstanding antibacterial properties (>99%). These stretchable tissue adhesive antibacterial hydrogels are promising for wound dressings and implantable devices.

https://pubs.acs.org/doi/10.1021/acsami.0c14959

主站蜘蛛池模板: 丰都县| 新和县| 永吉县| 金门县| 凤阳县| 本溪| 阳高县| 会东县| 伊吾县| 金门县| 海林市| 丰镇市| 大名县| 偏关县| 石景山区| 宝坻区| 永昌县| 南部县| 澄迈县| 定边县| 中江县| 寻乌县| 崇明县| 高邑县| 西林县| 阜南县| 榆林市| 龙门县| 泰州市| 探索| 巴南区| 南康市| 河北省| 攀枝花市| 明水县| 澎湖县| 自治县| 阜宁县| 蒲江县| 邯郸市| 高密市|