Hollow Microneedles (IMAGE) North Carolina State University Caption Hollow microneedles open the door to new techniques for diagnosing and treating a variety of medical conditions, including skin cancer. Credit Roger Narayan, Faraday Discussions, http://dx.doi.org/10.1039/C005374K - Reproduced by permission of the Royal Society of Chemistry. Usage Restrictions Credit MUST be given. License Licensed content 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.