embodiments generally provide an apparatus and method for adhering microorganisms , chemical , and biopolymers to a substrate for selective immobilization and later removal from the host organism such as a human or animal with minimal absorption and toxicity to the host . embodiments provide for a method and apparatus control the microbial , chemical , and biopolymer compositions on the skin , upper and lower respiratory tracts , as well as the gastrointestinal system . embodiments provide a method and apparatus to modulate the state of health and disease states of the host .