Robust Colloidal Nanoparticles of Pyrrolopyrrole Cyanine J-Aggregates with Bright Near-Infrared Fluorescence in Aqueous Media: From Spectral Tailoring to Bioimaging Applications
Colloidal nanoparticles (NPs) containing near-infrared-fluorescent J-aggregates (JAGGs) of pyrrolopyrrole cyanines (PPcys) stabilized by amphiphilic block co-polymers were prepared in aqueous medium. JAGG formation can be tuned by means of the chemical structure of PPcys, the concentration of chromo...
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sg-ntu-dr.10356-854702023-12-29T06:46:29Z Robust Colloidal Nanoparticles of Pyrrolopyrrole Cyanine J-Aggregates with Bright Near-Infrared Fluorescence in Aqueous Media: From Spectral Tailoring to Bioimaging Applications Yang, Cangjie Wang, Xiaochen Wang, Mingfeng Xu, Keming Xu, Chenjie School of Chemical and Biomedical Engineering Aggregation Colloids Colloidal nanoparticles (NPs) containing near-infrared-fluorescent J-aggregates (JAGGs) of pyrrolopyrrole cyanines (PPcys) stabilized by amphiphilic block co-polymers were prepared in aqueous medium. JAGG formation can be tuned by means of the chemical structure of PPcys, the concentration of chromophores inside the polymeric NPs, and ultrasonication. The JAGG NPs exhibit a narrow emission band at 773 nm, a fluorescence quantum yield comparable to that of indocyanine green, and significantly enhanced photostability, which is ideal for long-term bioimaging. MOE (Min. of Education, S’pore) Accepted version 2017-09-12T04:02:56Z 2019-12-06T16:04:18Z 2017-09-12T04:02:56Z 2019-12-06T16:04:18Z 2017 Journal Article Yang, C., Wang, X., Wang, M., Xu, K., & Xu, C. (2017). Robust Colloidal Nanoparticles of Pyrrolopyrrole Cyanine J-Aggregates with Bright Near-Infrared Fluorescence in Aqueous Media: From Spectral Tailoring to Bioimaging Applications. Chemistry - A European Journal, 23(18), 4310-4319. 0947-6539 https://hdl.handle.net/10356/85470 http://hdl.handle.net/10220/43723 10.1002/chem.201604741 en Chemistry - A European Journal © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the author created version of a work that has been peer reviewed and accepted for publication by Chemistry - A European Journal, Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1002/chem.201604741]. 10 p. application/pdf |
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Aggregation Colloids |
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Aggregation Colloids Yang, Cangjie Wang, Xiaochen Wang, Mingfeng Xu, Keming Xu, Chenjie Robust Colloidal Nanoparticles of Pyrrolopyrrole Cyanine J-Aggregates with Bright Near-Infrared Fluorescence in Aqueous Media: From Spectral Tailoring to Bioimaging Applications |
| description |
Colloidal nanoparticles (NPs) containing near-infrared-fluorescent J-aggregates (JAGGs) of pyrrolopyrrole cyanines (PPcys) stabilized by amphiphilic block co-polymers were prepared in aqueous medium. JAGG formation can be tuned by means of the chemical structure of PPcys, the concentration of chromophores inside the polymeric NPs, and ultrasonication. The JAGG NPs exhibit a narrow emission band at 773 nm, a fluorescence quantum yield comparable to that of indocyanine green, and significantly enhanced photostability, which is ideal for long-term bioimaging. |
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School of Chemical and Biomedical Engineering |
| author_facet |
School of Chemical and Biomedical Engineering Yang, Cangjie Wang, Xiaochen Wang, Mingfeng Xu, Keming Xu, Chenjie |
| format |
Article |
| author |
Yang, Cangjie Wang, Xiaochen Wang, Mingfeng Xu, Keming Xu, Chenjie |
| author_sort |
Yang, Cangjie |
| title |
Robust Colloidal Nanoparticles of Pyrrolopyrrole Cyanine J-Aggregates with Bright Near-Infrared Fluorescence in Aqueous Media: From Spectral Tailoring to Bioimaging Applications |
| title_short |
Robust Colloidal Nanoparticles of Pyrrolopyrrole Cyanine J-Aggregates with Bright Near-Infrared Fluorescence in Aqueous Media: From Spectral Tailoring to Bioimaging Applications |
| title_full |
Robust Colloidal Nanoparticles of Pyrrolopyrrole Cyanine J-Aggregates with Bright Near-Infrared Fluorescence in Aqueous Media: From Spectral Tailoring to Bioimaging Applications |
| title_fullStr |
Robust Colloidal Nanoparticles of Pyrrolopyrrole Cyanine J-Aggregates with Bright Near-Infrared Fluorescence in Aqueous Media: From Spectral Tailoring to Bioimaging Applications |
| title_full_unstemmed |
Robust Colloidal Nanoparticles of Pyrrolopyrrole Cyanine J-Aggregates with Bright Near-Infrared Fluorescence in Aqueous Media: From Spectral Tailoring to Bioimaging Applications |
| title_sort |
robust colloidal nanoparticles of pyrrolopyrrole cyanine j-aggregates with bright near-infrared fluorescence in aqueous media: from spectral tailoring to bioimaging applications |
| publishDate |
2017 |
| url |
https://hdl.handle.net/10356/85470 http://hdl.handle.net/10220/43723 |
| _version_ |
1787136494006173696 |