Anna Orlova

Prof. Anna Orlova

orcid

Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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14 January 2015 in Nanotechnology
Verified
Journal Article
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IMI V Martynenko
I V Martynenko
VKVera Kuznetsova
Vera Kuznetsova
AOAnna Orlova
Anna Orlova
PKP A Kanaev
P A Kanaev
VMV G Maslov
V G Maslov
Anatoly V. FedorovAnatoly V. Fedorov
Anatoly V. Fedorov
Stable water-soluble complexes of Cd-free ZnSe/ZnS quantum dots (QDs) and chlorin e6 complexes have been prepared. These complexes have shown approximately 50% intracomplex fluorescence resonance energy transfer from QDs to chlorin e6. The photodynamic therapy (PDT) test of the complexes against the Erlich acsite carcinoma cell culture demonstrated a two-fold enhancement of the cancer cell photodynamic destruction as compared to that of free chlorin e6 molecules. It was shown that the PDT effect was significantly increased due to two factors: the efficient QD–chlorin e6 photoexcitation energy transfer and the improvement of cellular uptake of the photosensitizer in the presence of ZnSe/ZnS QDs.

19 January 2016 in Nanotechnology
Verified
Journal Article
Closed access
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IMI V Martynenko
I V Martynenko
VKVera Kuznetsova
Vera Kuznetsova
ILIlia Litvinov
Ilia Litvinov
AOAnna Orlova
Anna Orlova
VMV G Maslov
V G Maslov
Alexander BaranovAlexander Baranov
Alexander Baranov
The influence of the chirality of semiconductor nanocrystals, CdSe/ZnS quantum dots (QDs) capped with L - and D -cysteine, on the efficiency of their uptake by living Ehrlich Ascite carcinoma cells is studied by spectral- and time-resolved fluorescence microspectroscopy. We report an evident enantioselective process where cellular uptake of the L -Cys QDs is almost twice as effective as that of the D -Cys QDs. This finding paves the way for the creation of novel approaches to control the biological properties and behavior of nanomaterials in living cells.

13 December 2013 in Beilstein Journal of Nanotechnology
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Journal Article
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IMIrina V. Martynenko
Irina V. Martynenko
AOAnna Orlova
Anna Orlova
VMVladimir G. Maslov
Vladimir G. Maslov
Alexander BaranovAlexander Baranov
Alexander Baranov
Anatoly V. FedorovAnatoly V. Fedorov
Anatoly V. Fedorov
MAMikhail Artemyev
Mikhail Artemyev
The photoexcitation energy transfer is found and investigated in complexes of CdSe/ZnS cationic quantum dots and chlorin e6 molecules formed by covalent bonding and electrostatic interaction in aqueous solution and in porous track membranes. The quantum dots and chlorin e6 molecules form stable complexes that exhibit Förster resonance energy transfer (FRET) from quantum dots to chlorin e6 regardless of complex formation conditions. Competitive channels of photoexcitation energy dissipation in the complexes, which hamper the FRET process, were found and discussed.

22 December 2021 in RSC Advances
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Journal Article
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FSF. A. Sewid
F. A. Sewid
KAK. I. Annas
K. I. Annas
ADA. Dubavik
A. Dubavik
AVA. V. Veniaminov
A. V. Veniaminov
VMV. G. Maslov
V. G. Maslov
AOAnna Orlova
Anna Orlova
A CdSe/ZnS QD-TPP nanocomposite and energy transfer from QDs to (i) TPP monomers to oxygen generating singlet oxygen (SO) and (ii) TPP aggregates cannot generate SO in chitosan solution.

19 April 2025 in Materials Chemistry and Physics
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Journal Article
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KSKhuram Shahzad
Khuram Shahzad
MAMuhammad Ali Abbasi
Muhammad Ali Abbasi
SMSadaf Mushtaq
Sadaf Mushtaq
MIMuhammad Farzik Ijaz
Muhammad Farzik Ijaz
DDDenis V. Danilov
Denis V. Danilov
AOAnna Orlova
Anna Orlova

31 October 2013 in Discover Nano
Verified
Journal Article
Open access
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YGYulia Gromova
Yulia Gromova
AOAnna Orlova
Anna Orlova
VMVladimir G Maslov
Vladimir G Maslov
Anatoly V. FedorovAnatoly V. Fedorov
Anatoly V. Fedorov
Alexander BaranovAlexander Baranov
Alexander Baranov
Fluorescence resonance energy transfer in complexes of semiconductor CdSe/ZnS quantum dots with molecules of heterocyclic azo dyes, 1-(2-pyridylazo)-2-naphthol and 4-(2-pyridylazo) resorcinol, formed at high quantum dot concentration in the polymer pore track membranes were studied by steady-state and transient PL spectroscopy. The effect of interaction between the complexes and free quantum dots on the efficiency of the fluorescence energy transfer and quantum dot luminescence quenching was found and discussed.