Image 2 (IMAGE) Nanyang Technological University Caption The NTU probiotics coating technology is customisable and can be used to create powder-like coated probiotics, which are about 10 μm (0.0004 inch) in diameter. Credit NTU Singapore Usage Restrictions No restrictions. License Public Domain 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.