Supercritical hydrothermal synthesis is a promising methodology of nanoparticle fabrication. This review introduces principles of the process as well as the characteristics of the products synthesized by the method. The process design of the supercritical method, surface control by organic modification, and the possible application of the nanohybrid materials are focused on.
Microorganisms are ubiquitous in the Earth’s biosphere. Majority of them poses a threat for humans, being either naturally occurring or artificially introduced into the air and forming bioaerosols. Bringing together the contemporary status of information in the area, this ‘eye-opening’ article characterizes in condensed form the environmental sources of microbial aerosols, their role in atmospheric processes, provides their physical and biological characteristics which result in adverse health effects, discusses analytical techniques used for their quantitative and qualitative evaluation, presents methods for establishing standards of exposure, and comments on their usefulness in the control and protection of environment and health.