Multifunctional Mesoporous Carbon Capsules and their Robust Coatings for Encapsulation of Actives: Antimicrobial and Anti-bioadhesion Functions

摘要

We present the synthesis and applications of multifunctional hollow porous carbon spheres with well ordered pore architecture, and ability to encapsulate functional nanoparticles. In the present work, the applications of hollow mesoporous carbon capsules (HMCCs) are illustrated in two different contexts. In the first approach, the hollow capsule core is used to encapsulate silver nanoparticles to thwart antimicrobial Characteristics. It is shown that silver-loaded HMCCs (concentration similar to 100 mu g/mL) inhibit the growth and multiplication of bacterial colonies of Escherichia coli (Grain negative) and Staphylococcus aureus (Gram-positive) up to 96% and 83%, respectively. In the second part, the fabrication of hierarchical micro- and nanostructured superhydrophic coatings of HMCCs(Without encapsulation with silver nanoparticles) is evaluated for anti-bioadhesion properties. Studies of protein adsorption and Microorganism and platelet adhesion have shown a significant reduction (up to 100%) for the HMCC-based superhydrophobic surfaces compared with the control surfaces. Therefore;this unique architecture of HMCCs and their coatings with theability to encapsulate functional materials make them a promising candidate for a variety of applications.