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Pregled bibliografske jedinice broj: 1165788

A study of cobalt (II) complexes involved in marine biogeochemical processes: Co(II)-1,10- Phenanthroline and Co(II)-1,10-Phenanthroline-L-α- Phosphatidylcholine

Bačinić, Anđela; Frka, Sanja; Mlakar, Marina
A study of cobalt (II) complexes involved in marine biogeochemical processes: Co(II)-1,10- Phenanthroline and Co(II)-1,10-Phenanthroline-L-α- Phosphatidylcholine // Bioelectrochemistry, 144 (2022), 108009-108018 doi:10.1016/j.bioelechem.2021.108009 (međunarodna recenzija, članak, znanstveni)

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Naslov
A study of cobalt (II) complexes involved in marine biogeochemical processes: Co(II)-1,10- Phenanthroline and Co(II)-1,10-Phenanthroline-L-α- Phosphatidylcholine

Autori
Bačinić, Anđela ; Frka, Sanja ; Mlakar, Marina

Izvornik
Bioelectrochemistry (1567-5394) 144 (2022); 108009-108018

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Cobalt (II) ; 1, 10-Phenanthroline ; Phosphatidylcholine ; Voltammetry ; Langmuir trough

Sažetak
The cell membrane is structured so that the surface layer is composed of lipid molecules with selective permeability for micronutrients and organic ligands. Binding of Co (II) to natural lipid phosphatidylcholine (PC) has been studied to identify a possible mechanism of Co (II) entry through the cell membrane of the biota in detail, by voltammetry followed by checking the system at the air– water boundary, by Langmuir method. Binding of cobalt (II) ions to the PC molecules was enabled by the Co(II)-1, 10- Phenanthroline (Phen) complex formation as an intermediate. Co(II)-Phen-PC complex reduction was recorded in the pH range from 5 to 9.5. The reduction was identified as a two-electron irreversible reaction at about -1.5 V, with the reactant adsorption followed dissociation (EC mechanism). The Co(II)- Phen-PC complex electrode surface concentration (C) was calculated to be (1.45 ± 0.12) x 10-10 mol cm-2. Conditional stability constants log KCo(II)Phen2PC = 23.02 ± 0.26 and log KCo(II)Phen2PC2 = 29.31 ± 0.17 (Ic = 0.55) were calculated by CLE/ACSV method. Pressure-area (p-A) isotherms obtained at water–air interface by Langmuir monolayer technique indicated penetration of Co(II)-Phen into the PC monolayer, supporting electrochemical results. The equilibrium constants of the Co (II)-PC system (1:1) at the air– water interface was calculated to be K1 = 2.4 x 10-2 m3 mol-1, while for Co(II)-Phen-PC K2 = 4.86 x 1010- m2 mol-1.

Izvorni jezik
Engleski

Znanstvena područja
Interdisciplinarne prirodne znanosti



POVEZANOST RADA

Projekti:
HRZZ-IP-2018-01-3105 - Biokemijski odgovori površinskog sloja oligotrofnog područja Jadranskog mora na atmosfersko taloženje (BiREADI) (Frka Milosavljević, Sanja, HRZZ - 2018-01) ( CroRIS)

Ustanove:
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Marina Mlakar (autor)

Avatar Url Anđela Bačinić (autor)

Avatar Url Sanja Frka Milosavljević (autor)

Poveznice na cjeloviti tekst rada:

Pristup cjelovitom tekstu rada doi www.sciencedirect.com doi.org

Citiraj ovu publikaciju:

Bačinić, Anđela; Frka, Sanja; Mlakar, Marina
A study of cobalt (II) complexes involved in marine biogeochemical processes: Co(II)-1,10- Phenanthroline and Co(II)-1,10-Phenanthroline-L-α- Phosphatidylcholine // Bioelectrochemistry, 144 (2022), 108009-108018 doi:10.1016/j.bioelechem.2021.108009 (međunarodna recenzija, članak, znanstveni)
Bačinić, A., Frka, S. & Mlakar, M. (2022) A study of cobalt (II) complexes involved in marine biogeochemical processes: Co(II)-1,10- Phenanthroline and Co(II)-1,10-Phenanthroline-L-α- Phosphatidylcholine. Bioelectrochemistry, 144, 108009-108018 doi:10.1016/j.bioelechem.2021.108009.
@article{article, author = {Ba\v{c}ini\'{c}, An\djela and Frka, Sanja and Mlakar, Marina}, year = {2022}, pages = {108009-108018}, DOI = {10.1016/j.bioelechem.2021.108009}, keywords = {Cobalt (II), 1, 10-Phenanthroline, Phosphatidylcholine, Voltammetry, Langmuir trough}, journal = {Bioelectrochemistry}, doi = {10.1016/j.bioelechem.2021.108009}, volume = {144}, issn = {1567-5394}, title = {A study of cobalt (II) complexes involved in marine biogeochemical processes: Co(II)-1,10- Phenanthroline and Co(II)-1,10-Phenanthroline-L-α- Phosphatidylcholine}, keyword = {Cobalt (II), 1, 10-Phenanthroline, Phosphatidylcholine, Voltammetry, Langmuir trough} }
@article{article, author = {Ba\v{c}ini\'{c}, An\djela and Frka, Sanja and Mlakar, Marina}, year = {2022}, pages = {108009-108018}, DOI = {10.1016/j.bioelechem.2021.108009}, keywords = {Cobalt (II), 1, 10-Phenanthroline, Phosphatidylcholine, Voltammetry, Langmuir trough}, journal = {Bioelectrochemistry}, doi = {10.1016/j.bioelechem.2021.108009}, volume = {144}, issn = {1567-5394}, title = {A study of cobalt (II) complexes involved in marine biogeochemical processes: Co(II)-1,10- Phenanthroline and Co(II)-1,10-Phenanthroline-L-α- Phosphatidylcholine}, keyword = {Cobalt (II), 1, 10-Phenanthroline, Phosphatidylcholine, Voltammetry, Langmuir trough} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE

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