(October 2 2024) Webinar: Webinar Agenda: NGBR Bioprinting Systems
(October 2, 2024) Next Generation Bioprinting Platform: A Multimodal Approach for Bioprinting of
Learning Objectives
Overview
In this webinar, we will explore the development and characterization of a novel photoacoustic (PA) contrast agent suitable for in vivo applications, that out-performs current conventional PA agents. Translation of transabdominal PA imaging is limited due to high optical attenuation of tissue when imaging at conventional wavelengths from the first near infrared (NIR) window. Though imaging at the NIR-2 window allows deeper light penetration due to minimized tissue scattering, there is a lack of optical contrast from endogenous chromophores at these wavelengths. Currently, gold nanorods (AuNRs) are conventionally used as exogenous contrast for PA imaging at the NIR-2 window. However, AuNRs have large sizes leading to poor clearance in biological systems with adverse long-term effects due to bioaccumulation. Hence, there is a need for exogenous agents with high optical contrast at NIR-2 suited for in vivo applications. Here, using the TriTom compact PA tomography system, a semiconductor nanocrystal contrast agent was validated in vitro, then demonstrated in a mouse model.
Vinoin Devpaul Vincely is a PhD candidate in the Department of Biomedical Engineering at Tulane University under the supervision of Dr. Carolyn L. Bayer. He received his Bachelor in Biophysics and Master in Physics degrees from Miami University, Ohio where he studied fundamental biophotonics. His current research focuses on exploring various approaches to translate photoacoustic imaging for deep tissue applications, a key barrier limiting photoacoustic modalities for clinical translation.
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