Abstract: A dispersion includes a liquid medium and particles of a fruit body of Ganoderma lucidum. The particles are dispersed in the liquid medium and have a minimum volume average particle size such that cell walls of the fruit body of Ganoderma lucidum are ruptured and essential ingredients contained in cells of the fruit body of Ganoderma lucidum are released into the liquid medium.

Abstract: A transdermal delivery patch includes: a matrix; a volatile component; and a plurality of microcapsules dispersed in the matrix. Each of the microcapsules has an enclosing wall enclosing the volatile component therein. A method for preparing the transdermal delivery patch includes: mixing a first gel, a second gel with a charge opposite to that of the first gel, and a volatile component so as to form microcapsules enclosing the volatile component, each of the microcapsules having an enclosing wall that is composed of the first and second gels; dispersing the microcapsules in a matrix so as to form a medicinal dressing; and coating the medicinal dressing on a backing substrate.