Reference:
Campra, P. (2021). Graphene oxide detection in aqueous suspension: Observational study in optical and electron microscopy. Interim report (I). Universidad de Almería, Spain.
Summary:
This interim report details the microscopic analysis of a vial labelled “COMIRNATY™,” containing a cloudy aqueous suspension. Received on 06/10/2021, the sample underwent RNA extraction and quantification, revealing the presence of uncharacterised nanometric microbiology under optical microscopy. The preliminary analysis indicated a significant UV absorbance, hinting at substances other than RNA, including potential reduced graphene oxide (RGO). Transmission electron microscopy (TEM) showed the RD1 sample exhibited high similarity to literature images of graphene oxide, featuring folded translucent sheets and agglomerations. While these observations provide compelling evidence for the presence of graphene derivatives, definitive identification necessitates further structural characterisation through spectroscopic techniques, as only one sample was analysed. The study underscores the importance of comprehensive sampling and quality control to generalise results effectively.