Year: 2013
Type: article
Abstract: In this work, graphene nanoribbons and nanoplatelets were investigated as contrast agents for photoacoustic and thermoacoustic tomography (PAT and TAT). We show that oxidized single-and multi-walled graphene oxide nanoribbons (O-SWGNRs, O-MWGNRs) exhibit approximately 5-10 fold signal enhancement for PAT in comparison to blood at the wavelength of 755 nm, and approximately 10-28% signal enhancement for TAT in comparison to deionized (DI) water at 3 GHz. Oxidized graphite microparticles (O-GMPs) and exfoliated graphene oxide nanoplatelets (O-GNPs) show no significant signal enhancement for PAT, and approximately 12-29% signal enhancement for TAT. These results indicate that O-GNRs show promise as multi-modal PAT and TAT contrast agents, and that O-GNPs are suitable contrast agents for TAT.
Source: Photoacoustics
Institutions: Stony Brook University, Washington University in St. Louis
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,200
Awards: G1713956080, Photon tunneling: Shedding new light on biomedicine, G2000464321, G2181669537, G2915105778, RECOVERY OF OPTICAL ABSORPTION COEFFICIENT IN QUANTITATIVE PHOTOACOUSTIC IMAGING, Nanotechnology-based Theranostic Technology for Bone Tissue Engineering, G9000002182, G9000084353, G9000101289, G9000221157
OpenAlex ID: W2031041111