Gauze (IMAGE) ETH Zurich Caption Left, regular cotton gauze that absorbs blood. Right, gauze coated with carbon nanofibres in silicon. Below: Close-ups of the cotton fibres under an electron microscope. Credit Li Z et al. <em>Nature Communications </em>2019 Usage Restrictions None 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.