A Cluster of Silica Nanoparticles, Shown under a Scanning Electron Microscope (image) University of Oxford Share Print E-Mail Caption This is a cluster of mesoporous silica nanoparticles under a scanning electron microscope. These nanoparticles, developed at Oxford University, can be inserted into sperm to investigate unexplained infertility cases. They can be loaded with compounds to identify, diagnose or treat infertility. Credit Natalia Barkalina/Oxford University Usage Restrictions None 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.