当前位置：
X-MOL 学术
›
Carbohydr. Polym.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Highly tunable bioadhesion and optics of 3D printable PNIPAm/cellulose nanofibrils hydrogels.
Carbohydrate Polymers ( IF 10.7 ) Pub Date : 2020-01-25 , DOI: 10.1016/j.carbpol.2020.115898 Xiaohang Sun 1 , Preeti Tyagi 1 , Sachin Agate 1 , Marian G McCord 1 , Lucian A Lucia 1 , Lokendra Pal 1
Carbohydrate Polymers ( IF 10.7 ) Pub Date : 2020-01-25 , DOI: 10.1016/j.carbpol.2020.115898 Xiaohang Sun 1 , Preeti Tyagi 1 , Sachin Agate 1 , Marian G McCord 1 , Lucian A Lucia 1 , Lokendra Pal 1
Affiliation
|
A hybrid poly(N-isopropylacrylamide) (PNIPAm)/cellulose nanofibrils (CNFs) hydrogel composite was fabricated by inverted stereolithography 3D printing to provide a new platform for regulating lower critical solution temperature (LCST) properties and thus tuning optical and bioadhesive properties. The phenomena of interest in the as-printed PNIPAm/CNF hydrogels may be attributed to the fiber-reinforced composite system between crosslinked PNIPAm and CNFs. The optical tunability was found to be correlated to the micro/nano structures of the PNIPAm/CNF hydrogel films. It was found that PNIPAm/CNF hydrogels exhibit switchable bioadhesivity to bacteria in response to CNF distribution in the hydrogels. After 2.0 wt% CNF was incorporated, it was found that a remarkable 8°C reduction of the LCST was achieved relative to PNIPAm hydrogel crosslinked by TEGDMA without CNF. The prepared PNIPAm/CNF hydrogels possessed highly reversible optical, bioadhesion, and thermal performance, making them suitable to be used as durable temperature-sensitive sensors and functional biomedical devices.
中文翻译：
3D可打印PNIPAm /纤维素纳米原纤维水凝胶的高度可调生物粘附性和光学特性。
通过反向立体光刻3D打印制造了杂化聚（N-异丙基丙烯酰胺）（PNIPAm）/纤维素纳米原纤维（CNFs）水凝胶复合材料，从而为调节较低的临界溶液温度（LCST）特性并由此调节光学和生物粘附特性提供了新的平台。印刷的PNIPAm / CNF水凝胶感兴趣的现象可能归因于交联PNIPAm和CNF之间的纤维增强复合系统。发现光学可调性与PNIPAm / CNF水凝胶膜的微/纳米结构相关。发现PNIPAm / CNF水凝胶响应于CNF在水凝胶中的分布而对细菌表现出可切换的生物粘附性。加入2.0 wt％的CNF之后，结果发现，相对于TEGDMA不加CNF交联的PNIPAm水凝胶，LCST的降低幅度高达8°C。制备的PNIPAm / CNF水凝胶具有高度可逆的光学，生物粘附和热性能，使其适合用作耐用的温度敏感型传感器和功能性生物医学设备。
更新日期：2020-01-26
中文翻译：
3D可打印PNIPAm /纤维素纳米原纤维水凝胶的高度可调生物粘附性和光学特性。
通过反向立体光刻3D打印制造了杂化聚（N-异丙基丙烯酰胺）（PNIPAm）/纤维素纳米原纤维（CNFs）水凝胶复合材料，从而为调节较低的临界溶液温度（LCST）特性并由此调节光学和生物粘附特性提供了新的平台。印刷的PNIPAm / CNF水凝胶感兴趣的现象可能归因于交联PNIPAm和CNF之间的纤维增强复合系统。发现光学可调性与PNIPAm / CNF水凝胶膜的微/纳米结构相关。发现PNIPAm / CNF水凝胶响应于CNF在水凝胶中的分布而对细菌表现出可切换的生物粘附性。加入2.0 wt％的CNF之后，结果发现，相对于TEGDMA不加CNF交联的PNIPAm水凝胶，LCST的降低幅度高达8°C。制备的PNIPAm / CNF水凝胶具有高度可逆的光学，生物粘附和热性能，使其适合用作耐用的温度敏感型传感器和功能性生物医学设备。
京公网安备 11010802027423号