Anion Radicals(음이온 라디칼)란 무엇입니까?
Anion Radicals 음이온 라디칼 - Thermodynamic analysis accounted for the experimental observations of anion radicals and trihalide anions in solutions of p-benzoquinones with iodide or (for the strongest acceptor) bromide donors. [1] The triplet state of benzophenone takes part in the formation of the reducing agents, such as ketyl radicals and anion radicals of benzophenone and isopropanol. [2] All PPN salts show antiferromagnetic interactions between the pairs of radical anions, which in the case of PPN(diBrL) are very strong (−116 cm−1; using Ĥ = −2JSS type of exchange coupling Hamiltonian) due to a different crystal packing of the anion radicals as compared to PPN(L), PPN(4,7-L), and PPN(BrL). [3]열역학적 분석은 요오드화물 또는 (가장 강한 수용체의 경우) 브롬화물 공여체가 있는 p-벤조퀴논 용액에서 음이온 라디칼 및 트리할로겐화물 음이온의 실험적 관찰을 설명했습니다. [1] 벤조페논의 삼중항 상태는 케틸 라디칼 및 벤조페논 및 이소프로판올의 음이온 라디칼과 같은 환원제의 형성에 참여합니다. [2] 모든 PPN 염은 라디칼 음이온 쌍 사이에 반강자성 상호작용을 나타내며, 이는 PPN(diBrL)의 경우 다른 결정 패킹으로 인해 PPN(diBrL)의 경우 매우 강합니다(-116 cm-1, Ĥ = −2JSS 유형의 교환 결합 Hamiltonian 사용). PPN(L), PPN(4,7-L) 및 PPN(BrL)에 비해 음이온 라디칼. [3]
11 diphenyl 2 11 디페닐 2
Antioxidant properties of lycopene and its inclusion complexes were evaluated on the basis of measuring the scavenging activity for 1,1-diphenyl-2-picrylhydrazyl (DPPH), hydroxyl and superoxide anion radicals. [1] The N-CDs exhibited favorable radical scavenging activity (RSA) against 1,1-diphenyl-2-picrylhydrazyl (DPPH) and superoxide anion radicals. [2] Materials and Methods: The radical scavenging potential was determined using eight different in vitro assays: 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2'-Azino-bis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS) radical, β-carotene-linoleic acid, chelating activity, ferric reducing antioxidant power (FRAP), hydroxyl radical, nitric oxide (NO) radical, and superoxide anion radicals, palmitate (PA) on H9c2 cells, and H2O2-induced cell damage on H9c2 cardiomyocytes. [3]1,1-diphenyl-2-picrylhydrazyl(DPPH), 수산기 및 슈퍼옥사이드 음이온 라디칼에 대한 소거 활성을 측정하여 라이코펜과 그 포접 복합체의 항산화 특성을 평가했습니다. [1] N-CD는 1,1-diphenyl-2-picrylhydrazyl(DPPH) 및 슈퍼옥사이드 음이온 라디칼에 대해 유리한 라디칼 소거 활성(RSA)을 나타냈다. [2] nan [3]
diphenyl 2 picrylhydrazyl 디페닐 2 피크릴히드라질
Antioxidant efficacy of isovitexin was also determined by the ROS scavenging activity against 2,2-diphenyl-2-picrylhydrazyl (DPPH), ABTS and superoxide anion radicals. [1]isovitexin의 항산화 효능은 2,2-diphenyl-2-picrylhydrazyl(DPPH), ABTS 및 슈퍼옥사이드 음이온 라디칼에 대한 ROS 소거 활성에 의해 결정되었습니다. [1]
Superoxide Anion Radicals 과산화물 음이온 라디칼
Moreover, it exhibited remarkable scavenging activities towards DPPH, ABTS, and superoxide anion radicals, with IC50 values of 0. [1] Radical trapping experiments revealed that superoxide anion radicals are the predominant oxygen reactive species driving the photocatalytic reactions. [2] CeO2/SnS2 as a electroactive substrate can remarkably accelerate the generation of abundant superoxide anion radicals (O2•-) to react with luminol anion radical (L•-), achieving about 2-fold stronger ECL intensity than pure CeO2 NPs. [3] 5 to 35 μmol/L) leads to a significant increase in the yield of menadione-induced superoxide anion radicals; and at higher concentrations, to its decrease. [4] The possible mechanism of the proposed CL system was that hydroxylated intermediates could be oxidized by persulfate in alkaline solution to form superoxide anion radicals and thus lead to an increase in the luminol CL. [5] The hole oxidation, hydroxyl radicals, and superoxide anion radicals act as the active species simultaneously in the photodegradation of the dye molecules. [6] Superoxide anion radicals (•O2–) and photogenerated holes (h+) were found to be the main active species. [7] Antioxidant properties of lycopene and its inclusion complexes were evaluated on the basis of measuring the scavenging activity for 1,1-diphenyl-2-picrylhydrazyl (DPPH), hydroxyl and superoxide anion radicals. [8] Importantly, a clear correlation between cell death and intracellular generation of superoxide anion radicals after visible light irradiation was demonstrated. [9] CYP also exhibited antioxidant activities, including the scavenging of DPPH radicals, hydroxyl radicals and superoxide anion radicals. [10] Compound 1 was assessed for anti-tumor, anti-microbial, and anti-malarial activities, and its ability to scavenge or quench reactive oxygen species (ROS), such as superoxide anion radicals, hydroxy radicals and singlet oxygen (1O2). [11] Mechanistic investigations using several additives as potential inhibitors/activator revealed that the DNA photocleavage reaction involves Type-I pathway leading to formation of superoxide anion radicals (O2-) as the major reactive oxygen species responsible for photocleavage process. [12] The antioxidant activity of each Curcuma species rhizome was confirmed using the electron spin-resonance spin-trapping method with potent scavenging activity against superoxide anion radicals. [13] We found that the photodynamic pathway for the generation of singlet oxygen (1O2) was strongly inhibited in aqueous solution, and the major components for the inactivation of bacteria were superoxide anion radicals (˙O2-) and hydrogen peroxide (H2O2), which could result in the disruption of bacterial envelopes, the inactivation of vital enzymes, and the degradation of genomic DNA. [14] The scavenging ability of FePS on superoxide anion radicals was obviously raised than that of PS, which showed a good synergistic effect. [15] MATERIAL AND METHODS Platelet activity, both resting and after thrombin stimulation, was used to indicate the ability of the plant extracts to inhibit the production of superoxide anion radicals (O2 •-) and platelet lipid peroxidation. [16] Here, we directly compare the irradiation-induced (10 Gy of 6-MV X-ray photon) production of hydroxyl radicals, superoxide anion radicals and singlet oxygen in aqueous solutions of the following metal oxide nanoparticles: Al2O3, SiO2, Sc2O3, TiO2, V2O5, Cr2O3, MnO2, Fe3O4, CoO, NiO, CuO, ZnO, ZrO2, MoO3, Nd2O3, Sm2O3, Eu2O3, Gd2O3, Tb4O7, Dy2O3, Er2O3 and HfO2. [17] Different concertation of GO was added during the microwave synthesis procedure of ZnO, and the characterization results revealed that graphene can shift the conduction band to more reducing potential, resulting to higher production of superoxide anion radicals (O2-) compared to OH. [18] Reactive oxygen species (ROS), such as hydroxyl and superoxide anion radicals, are highly reactive molecules derived from the metabolism of oxygen. [19] According to the trapping experiments the superoxide anion radicals was the main reactive species in the photocatalytic process. [20] The gentian extracts were evaluated for their radical-scavenging properties against DPPH and superoxide anion radicals, lipid peroxidation inhibition, and α-amylase/α-glycosidase inhibition. [21] Special attention is paid to the reaction of superoxide anion radicals with plastohydroquinone molecules, producing hydrogen peroxide as signal molecules. [22] Mechanism studies showed that the main active species are photoinduced holes (h+) and superoxide anion radicals (·O2−). [23] Radical scavenger experiments indicated that photogenerated holes, electrons, superoxide anion radicals, and hydroxyl radicals were the dominant reactive species. [24] 3 % up to 15 % were tested in liposomal suspension, and in systems generating either hydroxyl and superoxide anion radicals. [25] Furthermore, the leave extracts also possessed scavenging activity against both hydroxyl and superoxide anion radicals, and inhibited the nitric oxide production. [26] In addition, superoxide anion radicals and holes play a major role in the process of photodegradation. [27] Further studies showed that their ability to chelate iron ions, scavenge DPPH (1,1‑diphenyl‑2‑picrylhydrazyl) free radicals and scavenge superoxide anion radicals were 70. [28] In addition to these enzymes, SOD activity was able to scavenge superoxide anion radicals, as evidenced by decline in TBARS content. [29] The cell-free supernatant of a liquid culture of the three strains showed excellent antioxidant activities against DPPH free radicals, superoxide anion radicals, and hydroxyl radicals; furthermore, significant anticancer activity was found on cervix cancer cells (HeLa) via cytotoxicity and induction of apoptosis. [30] Antioxidant results suggested zinc-HSP complex possessed the significant inhibitory effects against hydroxyl, ABTS and superoxide anion radicals in vitro as HSP did, which further indicated that conjunction of zinc did not change the biological activity of HSP. [31] Mercury exposure is associated with severe oxidative stress especially superoxide anion radicals (O2 −). [32] Here, a colorimetric sensing approach has been developed based on a molecular probe (2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2-H-tetrazolium-5-carboxanilide (XTT) tetrazolium salt) to quantitatively measure the photo-induced superoxide anion radicals (O2. [33] 753% scavenging capacity for Bifidin B2, while both of Bifidins B1 and B2 had almost close values for scavenging of superoxide anion radicals, 66 ± 1. [34] The major role in degradation of AMI may be attributed to hydroxyl radicals, whereas superoxide anion radicals, singlet molecular oxygen and hydroxyl radicals contribute to degradation of ALP. [35] The allelochemical p-hydroxybenzoic acid caused significant decreases in chlorophyll a, but increased the amount of superoxide anion radicals () and the electric conductivity in Microcystis aeruginosa. [36] Interestingly, exogenous SA treatment mitigated Cd toxicity by increasing the relative water content (RWC), chlorophyll, proline, and endogenous SA contents along with decline in malondialdehyde (MDA), hydrogen peroxide (H2O2), and superoxide anion radicals (O2-). [37] The anthocyanin content of the red flesh apple cultivar ′QN-5′ we bred can reach 361 mg·kg−1 (FW), and showed higher scavenging capacity to DPPH radicals, hydroxyl radicals, and superoxide anion radicals, with scavenging rates of 80. [38] The characterization of the response of elongating embryonic axes and cotyledons included a viability test before and after dehydration and measurement of the amounts of electrolyte leakage, concentration, and arrangement of storage materials, changes in chaperone proteins related to water deficit, and accumulation of hydrogen peroxide and superoxide anion radicals. [39] The presence of superoxide anion radicals in the current catalytic system was detected by the EPR method, and a possible mechanism of alcohol oxidation to ester was proposed on this basis. [40] The chemical scavenger experiments demonstrated that superoxide anion radicals and photogenerated holes in the sulfidation products of AgNWs could be the main reactive species for photocatalytic degradation. [41] C60(OH)10/CD nanoparticles protect the liver from injury by the suppression of oxidative stress occurring in the mitochondria, for example, by scavenging ROS such as superoxide anion radicals (O2・-), nitric oxide (NO) and peroxynitrite (ONOO-), which act as critical mediators in liver injuries. [42] Investigation on the influence of addition of scavengers on photocatalysis suggested that hydroxy radicals and superoxide anion radicals dominated the photocatalytic degradation of MB. [43] The results of a radical-trapping experiment revealed that the photo-generated holes and superoxide anion radicals were the primary reactive species in the BBV photocatalytic systems. [44] cerealis induced the accumulation of superoxide anion radicals and this response was stronger in pipecolic acid-pretreated compared to mock-pretreated plants. [45] Furthermore, the isolates exhibited an antioxidant potential by scavenging DPPH, ABTS, hydroxyl, and superoxide anion radicals and expressing the superoxide dismutase against hydrogen peroxide challenge. [46] Besides, nano-Se coated onto MCDION-Se also dramatically activated superoxide dismutase (SOD) and promoted the generation of superoxide anion radicals (SOARs) in tumor tissue. [47] Hyperlipidemia results in excessive superoxide anion radicals that are the cause of oxidative stress. [48] The most active photocatalytic agent was determined superoxide anion radicals and kinetics model of photocatalytic reaction was considered as pseudo-first order. [49] On the one hand, carotenoids can act as antioxidant enzymes to remove singlet oxygen, superoxide anion radicals, and hydroxyl radicals, thereby reducing SOD activity and reducing the cost of immunity. [50]또한 IC50 값이 0인 DPPH, ABTS 및 슈퍼옥사이드 음이온 라디칼에 대해 현저한 소거 활성을 나타냈다. [1] 라디칼 트래핑 실험은 슈퍼옥사이드 음이온 라디칼이 광촉매 반응을 주도하는 주요 산소 반응성 종이라는 것을 보여주었습니다. [2] nan [3] nan [4] nan [5] nan [6] nan [7] 1,1-diphenyl-2-picrylhydrazyl(DPPH), 수산기 및 슈퍼옥사이드 음이온 라디칼에 대한 소거 활성을 측정하여 라이코펜과 그 포접 복합체의 항산화 특성을 평가했습니다. [8] nan [9] nan [10] nan [11] nan [12] nan [13] nan [14] nan [15] nan [16] nan [17] nan [18] nan [19] nan [20] nan [21] nan [22] nan [23] nan [24] nan [25] nan [26] nan [27] nan [28] nan [29] nan [30] nan [31] nan [32] nan [33] nan [34] nan [35] nan [36] nan [37] nan [38] nan [39] nan [40] nan [41] nan [42] nan [43] nan [44] nan [45] nan [46] nan [47] nan [48] nan [49] nan [50]
Sulfate Anion Radicals 황산염 음이온 라디칼
Inhibitors of radical reactions are used to show that both hydroxyl and sulfate anion radicals participate in oxidative degradation in the combined systems {PS/UV/Fe2+} and {PS/Fe2+}, and the role of sulfate anion radicals is dominant in the process. [1] , sulfate anion radicals, SO4•-), which could accelerate the rate of mass transfer and electron transfer between S2O82- and PycDs. [2]라디칼 반응의 억제제는 히드록실 및 황산 음이온 라디칼이 결합된 시스템 {PS/UV/Fe2+} 및 {PS/Fe2+}에서 산화 분해에 참여하고 황산 음이온 라디칼의 역할이 이 과정에서 우세하다는 것을 보여주기 위해 사용됩니다. [1] , 황산 음이온 라디칼, SO4•-), 이는 S2O82-와 PycD 사이의 물질 이동 및 전자 이동 속도를 가속화할 수 있습니다. [2]