Nano-engineered multilayer microshells (microcapsules) as nano/microreactors are expected to expand the capabilities of confined photoreaction occurring in shell walls and in shell interiors and to explore new functionalities of application. The basis for optical reactions in multilayer microshells is their tailored wall components and particular properties originated from the permeability and stability of shell walls in response to external stimuli. This review aims at describing recent developments on the photochemical behaviors of photofunctionalized shell walls, mainly focusing on photocontrollable wall permeability by visible illumination. Apart from these, the photocatalytic reaction in spatially confined microshells is also reviewed, with an emphasis on recent advances in the visible lightassisted degradation of defined dye pollutants in the homogeneous or heterogeneous photo-Fenton system. The photoreaction mechanism occurring in the shells is also discussed. Finally, we have addressed some of the perspectives and challenges for the potential future development of microshells as photoreactors and applications based on these systems.
Current Nanoscience publishes authoritative reviews and original research reports, written by experts in the field on all the most recent advances in nanoscience and nanotechnology. All aspects of the field are represented including nano- structures, synthesis, properties, assembly and devices. Applications of nanoscience in biotechnology, medicine, pharmaceuticals, physics, material science and electronics are also covered. The journal is essential to all involved in nanoscience and its applied areas.