Chitosan nanocomposites with CdSe/ZnS quantum dots and porphyrin

F. A. Sewid; K. I. Annas; A. Dubavik; A. V. Veniaminov; V. G. Maslov; A. O. Orlova

doi:10.1039/D1RA08148A

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Chitosan nanocomposites with CdSe/ZnS quantum dots and porphyrin†

F. A. Sewid,

*^ab K. I. Annas,^a A. Dubavik,^a A. V. Veniaminov,^a V. G. Maslov^a and A. O. Orlova*^a

Author affiliations

* Corresponding authors

^a ITMO University, St. Petersburg 197101, Russia
E-mail: fayzaomar8891@gmail.com, a.o.orlova@gmail.com

^b Faculty of Science, Mansoura University, Egypt

Abstract

Water-soluble nanocomposites based on CdSe/ZnS quantum dots (QDs) and hydrophobic tetraphenylporphyrin (TPP) molecules passivated by chitosan (CS) have been formed. Magnetic circular dichroism (MCD) spectra evidence TPP presence in both monomeric and agglomerated forms in the nanocomposites. The nanocomposites demonstrate more pronounced singlet oxygen generation compared to free TPP in CS at the same concentration due to the intracomplex Förster resonance energy transfer (FRET) with a 45% average efficiency.

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Article information

DOI: https://doi.org/10.1039/D1RA08148A
Article type: Paper
Submitted: 06 Nov 2021
Accepted: 21 Dec 2021
First published: 04 Jan 2022
This article is Open Access

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RSC Adv., 2022,12, 899-906

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Chitosan nanocomposites with CdSe/ZnS quantum dots and porphyrin

F. A. Sewid, K. I. Annas, A. Dubavik, A. V. Veniaminov, V. G. Maslov and A. O. Orlova, RSC Adv., 2022, 12, 899 DOI: 10.1039/D1RA08148A

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Chitosan nanocomposites with CdSe/ZnS quantum dots and porphyrin†

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Chitosan nanocomposites with CdSe/ZnS quantum dots and porphyrin

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