Omiderm (Omikron Scientific Ltd., Rehovot, Israel), a new synthetic wound covering based on hydrophilized polyurethane, was found to be highly permeable to water. Values in the region of 5000 g/m2 24 h were found for the water permeability of Omiderm in comparison to 1400 and 500 g/m2 24 h for Biobrane (Hall, Woodroof Inc., Santa Ana, CA) and OP site (Smith and Nephew Ltd.), respectively. Permeabilities of antibacterial agents through Omiderm were found to be two to three orders of magnitude greater than those through Biobrane. The in vitro effectiveness of various antibacterial agents in lowering bacterial growth of different bacterial strains were applied to seeded agar plates through Omiderm membrane was investigated. NBH ointment (1% Neomycin, 1% Bacitracin, and 0.5% Hydrocortisone) was found to be the most effective material in inhibiting bacterial growth, except for Pseudomonas aeruginosa where silver sulfadiazine was superior. In in vivo experiments bacterial counts of infected wounds covered with Omiderm and topically treated with NBH were lowered to less than 10(3) organism/g tissue after one day of treatment.
JetPeel (Tav-Tech Ltd., Yehud, Israel) is a new device for cosmetic resurfacing of the facial skin. It uses a new technology of a 2-phase stream that creates a jet composed of gas (oxygen) and microdroplets of fluid (saline) accelerated to supersonic velocities. This jet impacts the skin, causing gentle and accurate cosmetic peeling. Our preclinical and clinical experience with the JetPeel for rejuvenation of the face is presented. In a group of 50 patients, we found the JetPeel technology to be a safe and effective new tool for the usual indications for facial peeling. It was most useful and effective for perioral peel. JetPeel can be used in combination with other resurfacing modalities such as chemical peeling or laser. Further investigation is needed to explore other applications of this technology, such as using different combinations of gases and fluids and transdermal transfer of medication dissolved in the peeling jet.
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