Uniform Coating of Microparticles using CVD Polymerization1 . Issue 10 (23rd November 2015)

• Record Type: Journal Article
• Authors: Liang, Yu; Jordahl, Jacob H.; Ding, Hao; Deng, Xiaopei; Lahann, Joerg
• Is Part Of: Chemical vapor deposition. Volume 21:Issue 10/12(2015:Dec.)
• Page Start: 288
• Page End: 293
• Publication Date: 2015-11-23
• Subjects: Fluidized bed reactor -- Functionalized coating -- Janus microparticle -- Surface modification; Chemical vapor deposition -- Periodicals; 671.735
• DOI: 10.1002/cvde.201507197
• Languages: English
• ISSNs: 0948-1907

Abstract

Abstract : A modified fluidized bed reactor is developed to homogenously coat micrometer‐sized particles with reactive polymer films using CVD. This technique is found to be rapid (∼30 min per batch) and scalable (up to 1 g particles), and can create homogenous coatings on microparticles down to 10 μm in diameter. By tuning critical variables, such as working pressure and the carrier gas flow rate, full coverage of a reactive polymer film can be realized. Janus particles are synthesized and can be visualized via fluorescence microscopy. Abstract : A custom‐designed fluidized bed reactor is attached to the outlet of a CVD polymerization system, thereby imparting chemical functionality on the surface of microparticles. Functional polymer films are shown to fully coat the 3D surface of particles. This technique, in concert with metal deposition, produces Janus particles. These coated particles have a wide range of potential uses in biotechnology.