Polylysine-Catalyzed Hydrogen Evolution at Mercury Electrodes
Само за регистроване кориснике
2010
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Abstract
It has been shown that peptides and proteins produce at nanomolar concentrations a structure-sensitive chronopotentiometric peak H at mercury electrodes, which is due to the catalytic hydrogen evolution reaction (HER).
Herein, we use for the first time poly(amino acids) to obtain information about the role of individual amino acid
residues in the HER. At pH 6 polylysine (polyLys) and polyarginine,tryptophan yield a peak H, in agreement with
their ionization state, while polyglutamic acid gives no catalytic response. PolyLys catalyzes hydrogen evolution in
its adsorbed state. Even at potentials negative to the potential of zero charge, hydrophobic interactions could be involved in polyLys adsorption.
Кључне речи:
Catalytic hydrogen evolution / Constant current chronopotentiometric stripping / Hanging mercury drop electrode / Poly(amino acids) / Polylysine / Amino acidsИзвор:
Electroanalysis, 2010, 22, 17-18, 2064-2070Издавач:
- Wiley
Финансирање / пројекти:
- Academy of Sciences of the Czech Republic: KAN400310651 to EP and KJB100040901, M20004090 to VO, MEYS CR ME09038 to EP, MSM0021622415
- Research Centre LC06035 and the Institution research plans Nos. AV0Z50040507 and AV0Z50040702
- Fonds National de la Recherche Scientifique (F.R.S.-FNRS, Belgium).
Напомена:
- International Conference on Modern Electroanalytical Methods, Prague, December 9‐14, 2009, Special Issue
DOI: 10.1002/elan.201000088
ISSN: 1040-0397
WoS: 000281904400020
Scopus: 2-s2.0-77956569712
Институција/група
PharmacyTY - JOUR AU - Živanović, Marko AU - Aleksić, Mara AU - Ostatna, Veronika AU - Doneux, Thomas AU - Paleček, Emil PY - 2010 UR - https://farfar.pharmacy.bg.ac.rs/handle/123456789/5494 AB - Abstract It has been shown that peptides and proteins produce at nanomolar concentrations a structure-sensitive chronopotentiometric peak H at mercury electrodes, which is due to the catalytic hydrogen evolution reaction (HER). Herein, we use for the first time poly(amino acids) to obtain information about the role of individual amino acid residues in the HER. At pH 6 polylysine (polyLys) and polyarginine,tryptophan yield a peak H, in agreement with their ionization state, while polyglutamic acid gives no catalytic response. PolyLys catalyzes hydrogen evolution in its adsorbed state. Even at potentials negative to the potential of zero charge, hydrophobic interactions could be involved in polyLys adsorption. PB - Wiley T2 - Electroanalysis T1 - Polylysine-Catalyzed Hydrogen Evolution at Mercury Electrodes VL - 22 IS - 17-18 SP - 2064 EP - 2070 DO - 10.1002/elan.201000088 ER -
@article{ author = "Živanović, Marko and Aleksić, Mara and Ostatna, Veronika and Doneux, Thomas and Paleček, Emil", year = "2010", abstract = "Abstract It has been shown that peptides and proteins produce at nanomolar concentrations a structure-sensitive chronopotentiometric peak H at mercury electrodes, which is due to the catalytic hydrogen evolution reaction (HER). Herein, we use for the first time poly(amino acids) to obtain information about the role of individual amino acid residues in the HER. At pH 6 polylysine (polyLys) and polyarginine,tryptophan yield a peak H, in agreement with their ionization state, while polyglutamic acid gives no catalytic response. PolyLys catalyzes hydrogen evolution in its adsorbed state. Even at potentials negative to the potential of zero charge, hydrophobic interactions could be involved in polyLys adsorption.", publisher = "Wiley", journal = "Electroanalysis", title = "Polylysine-Catalyzed Hydrogen Evolution at Mercury Electrodes", volume = "22", number = "17-18", pages = "2064-2070", doi = "10.1002/elan.201000088" }
Živanović, M., Aleksić, M., Ostatna, V., Doneux, T.,& Paleček, E.. (2010). Polylysine-Catalyzed Hydrogen Evolution at Mercury Electrodes. in Electroanalysis Wiley., 22(17-18), 2064-2070. https://doi.org/10.1002/elan.201000088
Živanović M, Aleksić M, Ostatna V, Doneux T, Paleček E. Polylysine-Catalyzed Hydrogen Evolution at Mercury Electrodes. in Electroanalysis. 2010;22(17-18):2064-2070. doi:10.1002/elan.201000088 .
Živanović, Marko, Aleksić, Mara, Ostatna, Veronika, Doneux, Thomas, Paleček, Emil, "Polylysine-Catalyzed Hydrogen Evolution at Mercury Electrodes" in Electroanalysis, 22, no. 17-18 (2010):2064-2070, https://doi.org/10.1002/elan.201000088 . .