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A Unique Aliphatic Tertiary Amine Chromophore: Fluorescence, Polymer Structure, and Application in Cell Imaging
Abstract
Although photoluminescence of tertiary aliphatic amines has been extensively studied, the usage of this fundamental chromophore as a fluorescent probe for various applications has unfortunately not been realized because their uncommon fluorescence is easily quenched, and strong fluorescence has been observed only in vapor phase. The objective of this study is how to retain the strong fluorescence of tertiary amines in polymers. Tertiary amines as branching units of the hyperbranched poly(amine-ester) (HypET) display relatively strong fluorescence (Φ = 0.11-0.43). The linear polymers with tertiary amines in the backbone or as the side group are only very weakly fluorescent. The tertiary amine of HypET is easily oxidized under ambient conditions, and red-shifting of fluorescence for the oxidized products has been observed. The galactopyranose-modified HypET exhibits low cytotoxicity and bright cell imaging. Thus, this study opens a new route of synthesizing fluorescent materials for cell imaging, biosensing, and drug delivery.
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Cited by
Zhu, S., Song, Y., Zhao, X., Shao, J., Zhang, J., & Yang, B. (2015) · Nano Research · doi:10.1007/s12274-014-0644-3 · Cited by 2,781
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Chen, Y., Lam, J. W. Y., Kwok, R. T. K., Liu, B., & Tang, B. Z. (2019) · Materials Horizons · doi:10.1039/c8mh01331d · Cited by 891
Clustering‐Triggered Emission of Nonconjugated Polyacrylonitrile
Zhou, Q., Cao, B., Zhu, C., Xu, S., Gong, Y., Yuan, W. Z., & Zhang, Y. (2016) · Small · doi:10.1002/smll.201601545 · Cited by 459
Zhu, S., Wang, L., Zhou, N., Zhao, X., Song, Y., Maharjan, S., Zhang, J., Lu, L., Wang, H., & Yang, B. (2014) · Chem. Commun. · doi:10.1039/c4cc05806b · Cited by 326
Prevalent intrinsic emission from nonaromatic amino acids and poly(amino acids)
Chen, X., Luo, W., Ma, H., Peng, Q., Yuan, W. Z., & Zhang, Y. (2018) · Science China Chemistry · doi:10.1007/s11426-017-9114-4 · Cited by 322
Bioapplications of hyperbranched polymers
Wang, D., Zhao, T., Zhu, X., Yan, D., & Wang, W. (2015) · Chemical Society Reviews · doi:10.1039/c4cs00229f · Cited by 301
Design and development of fluorescent nanostructures for bioimaging
Chen, M., & Yin, M. (2014) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2013.11.001 · Cited by 289
Zhao, Z., Chen, X., Wang, Q., Yang, T., Zhang, Y., & Yuan, W. Z. (2019) · Polymer Chemistry · doi:10.1039/c9py00519f · Cited by 98
Metadata
- Authors
- Sun, M., Hong, C.-Y., & Pan, C.-Y.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-12-13
- Volume
- 134
- Issue
- 51
- Pages
- 20581-20584
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2315959853
- Cited by
- 255
- References
- 0
- FWCI
- 8.30
- Type
- journal article
- Language
- en
- Open access
- closed
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