Results 41 to 50 of about 10,194 (228)
Laser Access to Quercetin Radicals and Their Repair by Co‐antioxidants
Chemistry – A European Journal, Volume 26, Issue 72, Page 17428-17436, December 23, 2020., 2020 Make ‘n’ Break: The repairs of quercetin H2Q by co‐antioxidants, such as ascorbate HAsc−, were investigated; and for this, ns laser pulses were used to generate high concentrations of the radicals HQ. by near‐UV photoionization of H2Q. Abstract We have demonstrated the feasibility and ease of producing quercetin radicals by photoionization with a ...
Tim Kohlmann, Martin Goez
wiley +1 more source
Journal of Chemistry, 2018 We examined the structure-reaction enthalpies-antioxidant activity relationship of the molecule library built around juglone and its derivatives at B3LYP/6-31+G(d,p) level. Three major antioxidant mechanisms (hydrogen atom transfer (HAT), single electron
Aymard Didier Tamafo Fouegue +4 more
doaj +1 more source
Bioinorganic Chemistry and Applications, Volume 2020, Issue 1, 2020., 2020 The elucidation of the complexation of lapachol and its derivatives to Fe2+ cation has been done using the density functional theory (DFT). This complexation has been limited to bidentate and tridentate to Fe2+ cation. Geometry optimizations have been implemented in gas and solution phase (water, acetonitrile, chlorobenzene, benzene, and toluene) for ...
Djafarou Ngouh Pajoudoro +7 more
wiley +1 more source
Digitalne kompetence – stanje in prihodnost
Mednarodno Inovativno Poslovanje, 2021 Digitalne kompetence vsakega državljana so nujne za enakovredno vključevanje v današnjo digitalno družbo, kar se je še posebej pokazalo ob koronavirusni epidemija, ko smo veliko dejavnosti, kot so izobraževanje, trgovanje, zabava, druženje
Vesna Lešnik Štefotič
doaj +1 more source
Feeling and filmmaking : the design and affect of film sound [PDF]
, 2017 Discussion of cinematic affect most typically attends to response, the impact of the film as we experience it. In this vein, various writers have drawn attention to the physicality of hearing (Sobchack 2005; Cubitt 1998), while others have illuminated ...
Donaldson, Lucy Fife
core +1 more source
Jurnal Kimia Sains dan Aplikasi, 2009 Enzim xilanase dapat menghidrolisis xilan menjadi xilosa yang dapat dimanfaatkan untuk pembuatan gula xilosa. Enzim xilanase dapat di isolasi dari Aspergillus niger dan peningkatan produksi xilanase membutuhkan suatu induser yaitu oat spelt xylan ...
Nies Suci Mulyani +2 more
doaj +1 more source
Chemical Physics Impact, 2022 A theoretical evaluation of radical scavenging activity and UV absorbing ability of chalcone named 2ʹ, 5ʹ, 3, 4-Tetrahydroxychalcone has been performed in the gas phase and aqueous media.
P.C. Sumayya +2 more
doaj +1 more source
, 2015 The first step of SPLET mechanism in solution phase for 15 benzoic acid derivatives was studied from the thermodynamic point of view. For this purpose, proton affinities (PAs) of corresponding carboxylate or phenoxide anions were computed by means of DFT
M. Michalík, P. Škorňa, V. Lukes
semanticscholar +1 more source
Theoretical Study of the Antioxidant Activity of Quercetin Oxidation Products
Frontiers in Chemistry, 2019 It was recently shown that, when tested in cellular systems, quercetin oxidized products (Qox) have significantly better antioxidant activity than quercetin (Q) itself.
Alejandro Vásquez-Espinal +7 more
doaj +1 more source
Applied Sciences, 2021 Fourteen triazole benzoic acid hybrids were previously characterized. This work aimed to screen their in vitro antioxidant activity using different assays, i.e., DPPH (1,1-diphenyl-1-picrylhydrazyl), reducing the power capability, FRAP (ferric reducing ...
Hatem A. Abuelizz +5 more
doaj +1 more source