Next Article in Journal
New Solvent-Free Melting-Assisted Preparation of Energetic Compound of Nickel with Imidazole for Combustion Synthesis of Ni-Based Materials
Next Article in Special Issue
The Influence of Nanoparticles on Fire Retardancy of Pedunculate Oak Wood
Previous Article in Journal
Novel Perspectives towards RNA-Based Nano-Theranostic Approaches for Cancer Management
Previous Article in Special Issue
Precipitation at Room Temperature as a Fast and Versatile Method for Calcium Phosphate/TiO2 Nanocomposites Synthesis
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Nanomaterials
Volume 11
Issue 12
10.3390/nano11123331
nanomaterials-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Bactericidal Activity of Multilayered Hybrid Structures Comprising Titania Nanoparticles and CdSe Quantum Dots under Visible Light

by
Ekaterina Kolesova
1,*,
Anastasia Bulgakova
1,
Vladimir Maslov
1,
Andrei Veniaminov
1,
Aliaksei Dubavik
1,
Yurii Gun’ko
2,
Olga Efremenkova
1,3,
Vladimir Oleinikov
1,4 and
Anna Orlova
1,*
1
School of Photonics, ITMO University, 197101 St. Petersburg, Russia
2
School of Chemistry, Trinity College Dublin, D02 PN40 Dublin, Ireland
3
Department of Microbiology, FSBI Gause Institute of New Antibiotics, 119021 Moscow, Russia
4
Department of Biomaterials and Bionanotechnology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 117997 Moscow, Russia
*
Authors to whom correspondence should be addressed.
Nanomaterials 2021, 11(12), 3331; https://doi.org/10.3390/nano11123331
Submission received: 24 October 2021 / Revised: 28 November 2021 / Accepted: 30 November 2021 / Published: 8 December 2021
(This article belongs to the Special Issue Nano-TiO2: Characterization and Application)
Browse Figures
Versions Notes

Abstract

Titania nanoparticle/CdSe quantum dot hybrid structures are a promising bactericidal coating that exhibits a pronounced effect against light-sensitive bacteria. Here, we report the results of a comprehensive study of the photophysical properties and bactericidal functionality of these hybrid structures on various bacterial strains. We found that our structures provide the efficient generation of superoxide anions under the action of visible light due to electron transfer from QDs to titania nanoparticles with ~60% efficiency. We also tested the antibacterial activity of hybrid structures on five strains of bacteria. The formed structures combined with visible light irradiation effectively inhibit the growth of Escherichia coli, Bacillus subtilis, and Mycobacterium smegmatis bacteria, the last of which is a photosensitive causative agent model of tuberculosis.
Keywords: hybrid nanostructures; quantum dots; photo-induced electron transfer; reactive oxygen species; antibacterial activity hybrid nanostructures; quantum dots; photo-induced electron transfer; reactive oxygen species; antibacterial activity
Graphical Abstract

Share and Cite

MDPI and ACS Style

Kolesova, E.; Bulgakova, A.; Maslov, V.; Veniaminov, A.; Dubavik, A.; Gun’ko, Y.; Efremenkova, O.; Oleinikov, V.; Orlova, A. Bactericidal Activity of Multilayered Hybrid Structures Comprising Titania Nanoparticles and CdSe Quantum Dots under Visible Light. Nanomaterials 2021, 11, 3331. https://doi.org/10.3390/nano11123331

AMA Style

Kolesova E, Bulgakova A, Maslov V, Veniaminov A, Dubavik A, Gun’ko Y, Efremenkova O, Oleinikov V, Orlova A. Bactericidal Activity of Multilayered Hybrid Structures Comprising Titania Nanoparticles and CdSe Quantum Dots under Visible Light. Nanomaterials. 2021; 11(12):3331. https://doi.org/10.3390/nano11123331

Chicago/Turabian Style

Kolesova, Ekaterina, Anastasia Bulgakova, Vladimir Maslov, Andrei Veniaminov, Aliaksei Dubavik, Yurii Gun’ko, Olga Efremenkova, Vladimir Oleinikov, and Anna Orlova. 2021. "Bactericidal Activity of Multilayered Hybrid Structures Comprising Titania Nanoparticles and CdSe Quantum Dots under Visible Light" Nanomaterials 11, no. 12: 3331. https://doi.org/10.3390/nano11123331

APA Style

Kolesova, E., Bulgakova, A., Maslov, V., Veniaminov, A., Dubavik, A., Gun’ko, Y., Efremenkova, O., Oleinikov, V., & Orlova, A. (2021). Bactericidal Activity of Multilayered Hybrid Structures Comprising Titania Nanoparticles and CdSe Quantum Dots under Visible Light. Nanomaterials, 11(12), 3331. https://doi.org/10.3390/nano11123331

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop