石墨烯
材料科学
微观结构
涂层
八达通(软件)
胶粘剂
纳米技术
莲花效应
粘附
激光器
结构着色
复合材料
光电子学
光学
图层(电子)
物理
原材料
化学
有机化学
量子力学
光子晶体
作者
Weizheng Cheng,Wanli Zhang,Jinran Tao,Feiyu Zheng,B. Chu,Ruitong Wang,Cheng Fang,Lei Huai,Peng Tao,Chengyi Song,Wen Shang,Benwei Fu,Tao Deng
出处
期刊:ACS Nano
[American Chemical Society]
日期:2024-03-07
卷期号:18 (11): 7877-7889
标识
DOI:10.1021/acsnano.3c08635
摘要
The octopus, as one of the most famous celebrities in bionics, has provided various inspirations for camouflage materials, soft-bodied robots, and flexible grabbers. The miniaturization of such structures will help the development of microrobots, microdelivery of drugs, and surface coating. With the lack of relevant effective preparation approaches, however, the generation of such octopus-like structures with a size of ∼1 μm or below is challenging. Here, we develop an approach based on laser-microdroplet interaction for generating an octopus-like structure with a size of ∼1 μm. The developed approach uses laser-microdroplet interaction to provide a large driving force of ∼107 Pa at a confined space (<1 μm), locally crumpling the precursor in the microdroplet. The locally crumpled particles possess both crumpled and uncrumpled structures that resemble an octopus's head and soft body. In the adhesion test, the octopus-like particles exhibit high adhesive properties in air, in water, and on a flexible substrate. In the electrochemical test, the octopus-like particles on flexible electrodes show good electrochemical and adhesive properties under hundreds of bending cycles. Benefiting from the combination of crumpled and uncrumpled morphologies, the created particles with octopus-like microstructure are demonstrated to possess comprehensive performance, exhibiting wide application potentials in the fields of microswimmers, surface coatings, and electrochemistry. Additionally, the method developed in this work has the advantages of concentrated energy in a confined space, displaying prospective potentials in micro- and nanoprocessing.
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