Singlet Oxygen Generation by Photoexcitation of Gold Nanoparticles

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Singlet Oxygen Generation by Photoexcitation of Gold Nanoparticles. / Safin, R. R.; Ershov, K. S.; Valiulin, S. V. et al.

In: High Energy Chemistry, Vol. 57, No. Suppl 3, 12.2023, p. S464-S469.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{8d315c762cda4eb2bdf3d17b9e36eaf4,

title = "Singlet Oxygen Generation by Photoexcitation of Gold Nanoparticles",

abstract = "Upon the photoexcitation of an aqueous suspension of gold nanoparticles with pulsed laser radiation, the surface plasmon resonance (SPR) absorption band exhibits short-lived IR luminescence with a spectral maximum at about 1300 nm, which is attributed to the luminescence of 1О2 singlet oxygen molecules. It has been found that the formation of 1О2 molecules is caused by a three-photon process. The single-photon SPR excitation provides the occurrence of electron emission; the impact of electrons on the oxygen molecules leads to the formation of superoxide anion molecules on the nanoparticle surface; upon the absorption of two more quanta of the same laser pulse, an electron is detached from the molecule to form a 1О2 molecule.",

author = "Safin, {R. R.} and Ershov, {K. S.} and Valiulin, {S. V.} and Pyryaeva, {A. P.}",

note = "This work was supported by the Russian Science Foundation, project no. 22-23-00921. Публикация для корректировки.",

year = "2023",

month = dec,

doi = "10.1134/S0018143923090151",

language = "English",

volume = "57",

pages = "S464--S469",

journal = "High Energy Chemistry",

issn = "0018-1439",

publisher = "Maik Nauka-Interperiodica Publishing",

number = "Suppl 3",

}

RIS

TY - JOUR

T1 - Singlet Oxygen Generation by Photoexcitation of Gold Nanoparticles

AU - Safin, R. R.

AU - Ershov, K. S.

AU - Valiulin, S. V.

AU - Pyryaeva, A. P.

N1 - This work was supported by the Russian Science Foundation, project no. 22-23-00921. Публикация для корректировки.

PY - 2023/12

Y1 - 2023/12

N2 - Upon the photoexcitation of an aqueous suspension of gold nanoparticles with pulsed laser radiation, the surface plasmon resonance (SPR) absorption band exhibits short-lived IR luminescence with a spectral maximum at about 1300 nm, which is attributed to the luminescence of 1О2 singlet oxygen molecules. It has been found that the formation of 1О2 molecules is caused by a three-photon process. The single-photon SPR excitation provides the occurrence of electron emission; the impact of electrons on the oxygen molecules leads to the formation of superoxide anion molecules on the nanoparticle surface; upon the absorption of two more quanta of the same laser pulse, an electron is detached from the molecule to form a 1О2 molecule.

AB - Upon the photoexcitation of an aqueous suspension of gold nanoparticles with pulsed laser radiation, the surface plasmon resonance (SPR) absorption band exhibits short-lived IR luminescence with a spectral maximum at about 1300 nm, which is attributed to the luminescence of 1О2 singlet oxygen molecules. It has been found that the formation of 1О2 molecules is caused by a three-photon process. The single-photon SPR excitation provides the occurrence of electron emission; the impact of electrons on the oxygen molecules leads to the formation of superoxide anion molecules on the nanoparticle surface; upon the absorption of two more quanta of the same laser pulse, an electron is detached from the molecule to form a 1О2 molecule.

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85186141434&origin=inward&txGid=1af99cbd8929cfdeb6ae92d96e552e53

UR - https://www.mendeley.com/catalogue/15ddc248-d228-3793-bcbb-5513da0c0d4a/

U2 - 10.1134/S0018143923090151

DO - 10.1134/S0018143923090151

M3 - Article

VL - 57

SP - S464-S469

JO - High Energy Chemistry

JF - High Energy Chemistry

SN - 0018-1439

IS - Suppl 3

ER -

ID: 59727382