Skin Patch Could Painlessly Deliver Vaccines, Cancer Medications in One Minute (image) American Chemical Society Share Print E-Mail Caption A new microneedle patch delivers medication to melanomas within one minute (ruler is in centimeters). Credit Celestine Hong and Yanpu He Usage Restrictions Image may only be used with the appropriate credit. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.