Breakthrough in Achieving the Longest Room-Temperature Red Afterglow at 600 nm in Solution via Resonance Energy Transfer between Carbon Dots-Zeolite Composites and Rhodamine B

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	Breakthrough in Achieving the Longest Room-Temperature Red Afterglow at 600 nm in Solution via Resonance Energy Transfer between Carbon Dots-Zeolite Composites and Rhodamine B
	Jiayi Dong; ZHENG WENHUA
	2024-06
Conference Name	The 10th Macau Symposium on Biomedical Science
Conference Date	2024-06-13-15
Conference Place	University of Macau,University Hall
Abstract	We present a novel, eco-friendly nanocomposite that combines in-situ confined Carbon Dots within Zeolite (CDZs) and Rhodamine B (RhB), tailored for biomedical applications. Typically, phosphorescence in nanoparticles is quenched in aqueous solutions due to triplet exciton deactivation by water-dissolved oxygen. Our design circumvents this limitation, maintaining the intrinsic green phosphorescence and water solubility of carbon dots. The addition of RhB, with an absorption peak at 540 nm, enables efficient Förster resonance energy transfer (FRET) to RhB, resulting in a significant red afterglow at 600 nm with a record duration of 1.32 seconds in solution-the longest to date. This strategic combination enhances the nanocomposite’s robustness and prolongs the afterglow emission, making it an excellent candidate for time-gated afterglow bioimaging in both in vivo and in vitro settings.
Keyword	Carbon Dots, Zeolite, Phosphorescent, Afterglow, Fret.
Document Type	Conference paper
Collection	DEPARTMENT OF PHARMACEUTICAL SCIENCES
Corresponding Author	ZHENG WENHUA
Recommended Citation GB/T 7714	Jiayi Dong,ZHENG WENHUA. Breakthrough in Achieving the Longest Room-Temperature Red Afterglow at 600 nm in Solution via Resonance Energy Transfer between Carbon Dots-Zeolite Composites and Rhodamine B[C], 2024.
APA	Jiayi Dong., & ZHENG WENHUA (2024). Breakthrough in Achieving the Longest Room-Temperature Red Afterglow at 600 nm in Solution via Resonance Energy Transfer between Carbon Dots-Zeolite Composites and Rhodamine B. .

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