通过 MAPLE 沉积聚合物纳米胶囊制备用于光诱导释放的智能涂层。

Smart Coatings Prepared via MAPLE Deposition of Polymer Nanocapsules for Light-Induced Release.

机构信息

Institute for Polymers, Composites and Biomaterials, National Research Council of Italy (IPCB-CNR), Via Previati 1/E, 23900 Lecco, Italy.

Department of Chemical, Materials and Production Engineering, University of Naples Federico II, P. le Tecchio 80, 80125 Naples, Italy.

出版信息

Molecules. 2021 May 6;26(9):2736. doi: 10.3390/molecules26092736.

Herein, smart coatings based on photo-responsive polymer nanocapsules (NC) and deposited by laser evaporation are presented. These systems combine remotely controllable release and high encapsulation efficiency of nanoparticles with the easy handling and safety of macroscopic substrates. In particular, azobenzene-based NC loaded with active molecules (thyme oil and coumarin 6) were deposited through Matrix-Assisted Pulsed Laser Evaporation (MAPLE) on flat inorganic (KBr) and organic (polyethylene, PE) and 3D (acrylate-based micro-needle array) substrates. SEM analyses highlighted the versatility and performance of MAPLE in the fabrication of the designed smart coatings. DLS analyses, performed on both MAPLE- and drop casting-deposited NC, demonstrated the remarkable adhesion achieved with MAPLE. Finally, thyme oil and coumarin 6 release experiments further demonstrated that MAPLE is a promising technique for the realization of photo-responsive coatings on various substrates.

本文提出了一种基于光响应聚合物纳米胶囊（NC）的智能涂层，通过激光蒸发进行沉积。这些系统将远程可控释放和纳米颗粒的高封装效率与宏观基底的易于处理和安全性结合在一起。具体而言，负载有活性分子（百里香油和香豆素 6）的基于偶氮苯的 NC 通过基质辅助脉冲激光蒸发（MAPLE）沉积在平板无机（KBr）和有机（聚乙烯，PE）以及 3D（基于丙烯酸酯的微针阵列）基底上。SEM 分析突出了 MAPLE 在设计智能涂层制造方面的多功能性和性能。在 MAPLE 和滴铸沉积 NC 上进行的 DLS 分析表明，MAPLE 实现了显著的附着力。最后，百里香油和香豆素 6 的释放实验进一步证明，MAPLE 是在各种基底上实现光响应涂层的有前途的技术。