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Multifunctional Laser-Induced Graphene Papers with Combined Defocusing and Grafting Processes for Patternable and Continuously Tunable Wettability from Superlyophilicity to Superlyophobicity
Small ( IF 13.0 ) Pub Date : 2021-09-14 , DOI: 10.1002/smll.202103322 Yanan Wang 1 , Guantao Wang 1 , Meihong He 1 , Fu Liu 1 , Mingguang Han 1 , Tan Tang 1 , Sida Luo 1
Small ( IF 13.0 ) Pub Date : 2021-09-14 , DOI: 10.1002/smll.202103322 Yanan Wang 1 , Guantao Wang 1 , Meihong He 1 , Fu Liu 1 , Mingguang Han 1 , Tan Tang 1 , Sida Luo 1
Affiliation
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Functional surfaces with tunable and patternable wettability have attracted significant research interests because of remarkable advantages in biomedicine, environmental, and energy storage applications. Based on combined defocusing and grafting strategy for processing laser-induced graphene papers (LIGPs) with variable surface roughness (58.18–6.08 µm) and F content (0–25.9%), their wettability can be tuned continuously from superlyophilicity (contact angle CA ≈ 0°) to superlyophobicity (CA > 150°), for various liquids with a wide range of surface tensions from 27.5 to 72.8 mN m−1. In addition to reaching multiple wetting characteristics including amphiphilic, amphiphobic, and hydrophobic–oleophilic states, three designable processes are further developed for achieving LIGPs with various wetting patterns, including hydrophilic arrays or channels, hydrophobic-to-hydrophilic gradients, and Janus. Activated by the customly designed structures and properties, multifunctional and multi-scenario applications are successfully attempted, including 2D-/3D- directional cell cultivation, water transportation diode, self-triggered liquid transfer & collection, etc.
中文翻译：
多功能激光诱导石墨烯纸结合离焦和接枝工艺，实现从超亲液性到超疏液性的可图案化和连续可调润湿性
由于在生物医学、环境和储能应用中的显着优势，具有可调和可图案润湿性的功能表面引起了人们的重大研究兴趣。基于用于加工具有可变表面粗糙度 (58.18–6.08 µm) 和 F 含量 (0–25.9%) 的激光诱导石墨烯纸 (LIGP) 的组合散焦和接枝策略，它们的润湿性可以从超亲液性（接触角 CA ≈ 0 ° ) 至超疏液性 (CA > 150 ° )，适用于表面张力范围从 27.5 到 72.8 mN m -1 的各种液体. 除了达到多种润湿特性（包括两亲、两性和疏水-亲油状态）之外，还进一步开发了三种可设计的工艺来实现具有各种润湿模式的 LIGP，包括亲水阵列或通道、疏水-亲水梯度和 Janus。在定制设计的结构和特性的激活下，成功尝试了多功能和多场景应用，包括2D-/3D-定向细胞培养、输水二极管、自触发液体转移和收集等。
更新日期：2021-10-21
中文翻译：
多功能激光诱导石墨烯纸结合离焦和接枝工艺，实现从超亲液性到超疏液性的可图案化和连续可调润湿性
由于在生物医学、环境和储能应用中的显着优势，具有可调和可图案润湿性的功能表面引起了人们的重大研究兴趣。基于用于加工具有可变表面粗糙度 (58.18–6.08 µm) 和 F 含量 (0–25.9%) 的激光诱导石墨烯纸 (LIGP) 的组合散焦和接枝策略，它们的润湿性可以从超亲液性（接触角 CA ≈ 0 ° ) 至超疏液性 (CA > 150 ° )，适用于表面张力范围从 27.5 到 72.8 mN m -1 的各种液体. 除了达到多种润湿特性（包括两亲、两性和疏水-亲油状态）之外，还进一步开发了三种可设计的工艺来实现具有各种润湿模式的 LIGP，包括亲水阵列或通道、疏水-亲水梯度和 Janus。在定制设计的结构和特性的激活下，成功尝试了多功能和多场景应用，包括2D-/3D-定向细胞培养、输水二极管、自触发液体转移和收集等。
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