Ionizing radiation and natural constituents of living cells

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Ionizing radiation and natural constituents of living cells : Low-energy electron interaction with coenzyme Q analogs. / Pshenichnyuk, Stanislav A.; Modelli, Alberto; Asfandiarov, Nail L.; Komolov, Alexey S.

In: The Journal of Chemical Physics, Vol. 153, No. 11, 111103, 28.09.2020, p. 111103.

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

Author

Pshenichnyuk, Stanislav A. ; Modelli, Alberto ; Asfandiarov, Nail L. ; Komolov, Alexey S. / Ionizing radiation and natural constituents of living cells : Low-energy electron interaction with coenzyme Q analogs. In: The Journal of Chemical Physics. 2020 ; Vol. 153, No. 11. pp. 111103.

BibTeX

@article{6e2d8922f62b47f3b7ecceb90ef33ce4,

title = "Ionizing radiation and natural constituents of living cells: Low-energy electron interaction with coenzyme Q analogs",

abstract = "Resonance electron attachment to short-tail analogs of coenzyme Q10 is investigated in the electron energy range 0 eV-14 eV under gas-phase conditions by means of dissociative electron attachment spectroscopy. Formation of long-lived (milliseconds) molecular negative ions is detected at 1.2 eV, but not at thermal energy. A huge increase in the electron detachment time as compared with the reference para-benzoquinone (40 µs) is ascribed to the presence of the isoprene side chains. Elimination of a neutral CH3 radical is found to be the most intense decay detected on the microsecond time scale. The results give some insight into the timescale of electron-driven processes stimulated in living tissues by high-energy radiation and are of importance in prospective fields of radiobiology and medicine.",

keywords = "PARA-BENZOQUINONE, P-BENZOQUINONE, ANION RESONANCES, AUTODETACHMENT, ATTACHMENT, TRANSPORT, LIFETIME, AFFINITY, STATES, DAMAGE",

author = "Pshenichnyuk, {Stanislav A.} and Alberto Modelli and Asfandiarov, {Nail L.} and Komolov, {Alexey S.}",

note = "Publisher Copyright: {\textcopyright} 2020 Author(s).",

year = "2020",

month = sep,

day = "28",

doi = "10.1063/5.0022188",

language = "English",

volume = "153",

pages = "111103",

journal = "Journal of Chemical Physics",

issn = "0021-9606",

publisher = "American Institute of Physics",

number = "11",

}

RIS

TY - JOUR

T1 - Ionizing radiation and natural constituents of living cells

T2 - Low-energy electron interaction with coenzyme Q analogs

AU - Pshenichnyuk, Stanislav A.

AU - Modelli, Alberto

AU - Asfandiarov, Nail L.

AU - Komolov, Alexey S.

PY - 2020/9/28

Y1 - 2020/9/28

N2 - Resonance electron attachment to short-tail analogs of coenzyme Q10 is investigated in the electron energy range 0 eV-14 eV under gas-phase conditions by means of dissociative electron attachment spectroscopy. Formation of long-lived (milliseconds) molecular negative ions is detected at 1.2 eV, but not at thermal energy. A huge increase in the electron detachment time as compared with the reference para-benzoquinone (40 µs) is ascribed to the presence of the isoprene side chains. Elimination of a neutral CH3 radical is found to be the most intense decay detected on the microsecond time scale. The results give some insight into the timescale of electron-driven processes stimulated in living tissues by high-energy radiation and are of importance in prospective fields of radiobiology and medicine.

AB - Resonance electron attachment to short-tail analogs of coenzyme Q10 is investigated in the electron energy range 0 eV-14 eV under gas-phase conditions by means of dissociative electron attachment spectroscopy. Formation of long-lived (milliseconds) molecular negative ions is detected at 1.2 eV, but not at thermal energy. A huge increase in the electron detachment time as compared with the reference para-benzoquinone (40 µs) is ascribed to the presence of the isoprene side chains. Elimination of a neutral CH3 radical is found to be the most intense decay detected on the microsecond time scale. The results give some insight into the timescale of electron-driven processes stimulated in living tissues by high-energy radiation and are of importance in prospective fields of radiobiology and medicine.

KW - PARA-BENZOQUINONE

KW - P-BENZOQUINONE

KW - ANION RESONANCES

KW - AUTODETACHMENT

KW - ATTACHMENT

KW - TRANSPORT

KW - LIFETIME

KW - AFFINITY

KW - STATES

KW - DAMAGE

UR - http://www.scopus.com/inward/record.url?scp=85091591386&partnerID=8YFLogxK

U2 - 10.1063/5.0022188

DO - 10.1063/5.0022188

M3 - Article

C2 - 32962391

AN - SCOPUS:85091591386

VL - 153

SP - 111103

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

IS - 11

M1 - 111103

ER -

ID: 64728952