(IMAGE) Kumamoto University Caption Numerous pores were observed in GO (indicated by white arrows). In contrast, no pores were visible in Pf-GO, even under high magnification. Credit Kazuto Hatakeyama and Shintaro Ida from Kumamoto University Usage Restrictions Only to be used in content reporting on this research. Credit must be given to the creator. License Original 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.