Journal
CHEMICAL COMMUNICATIONS
Volume 51, Issue 59, Pages 11868-11871Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cc03822g
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Funding
- Cancer Prevention and Research Institute of Texas (CPRIT) [R1212]
- Welch Foundation [I-1855, AT-1740]
- CPRIT [RP140110]
- NSF [DMR-0956116]
- NSF-MRI [CHE-1126177]
- NATIONAL CANCER INSTITUTE [P30CA142543] Funding Source: NIH RePORTER
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Using a bio-inspired cellulose template, new charge transfer (CT) nanoparticles (NPs) with unique and intriguing emission properties are reported. Pyrene-modified 2,3-di-O-methyl cellulose formed CT complexes with small molecule acceptors, e.g. 7,7,8,8-tetracyanoquinodimethane (TCNQ), and exhibited aggregation-induced emission (AIE) in aqueous medium upon nanoparticle formation. The TCNQ-CT NPs showed multicolor fluorescence emissions at 370-400 nm, 602 nm and 777 nm, when excited at 330 nm, 485 nm and 620 nm respectively. The cellulose-TCNQ NPs are biocompatible and demonstrate an advance in the use of the CT mechanism for biomedical imaging applications both in vitro and in vivo.
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