Immune enhancement effect of an herb complex extract through the activation of natural killer cells and the regulation of cytokine levels in a cyclophosphamide-induced immunosuppression rat model

Woo, Sung Min; Choi, Woo Rin; Jang, D.D.; Yi, Chun Sik; Kim, Hae‐Lim; Kim, Kyung Hyeon; Kim, Jong-Tae; Choi, Won Hee; Jang, Seung Hee; Kim, Min Jeung; Wee, Ji Hyang; Kim, Yeon Ki; Le, Bao; Suh, Joo Won

doi:10.4103/1995-7645.248322

Cited by 11 publications

(6 citation statements)

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“…The literature suggests that the nitrogen of their lattice is involved in ammonia production. The discoveries of Co−N−C, [24] Ru/LaN/ZrH 2 , [26] and TM / Re N systems [32, 33] further demonstrate the contribution of lattice nitrogen, as well as its vacancies, to N 2 activation, with much improved catalytic activities in ammonia synthesis. In this work, the activation energies of TM /La−Al−N were comparable to previously reported Co/CeN [41] (45 kJ mol −1 at 0.9 MPa), Co−N−C [24] (50 kJ mol −1 at 1.0 MPa), and Ru/3LaN/ZrH 2 [26] (64 kJ mol −1 at 1.0 MPa), showing that the activation barrier of the rate‐determining step was significantly suppressed by utilizing a nitride support.…”

Section: Resultsmentioning

confidence: 99%

Approach to Chemically Durable Nickel and Cobalt Lanthanum‐Nitride‐Based Catalysts for Ammonia Synthesis

et al. 2022

Angewandte Chemie

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Metal nitride complexes have recently been proposed as an efficient noble-metal-free catalyst for ammonia synthesis utilizing a dual active site concept. However, their high sensitivity to air and moisture has restricted potential applications. We report that their chemical sensitivity can be improved by introducing Al into the LaN lattice, thereby forming LaÀ Al metallic bonds (LaÀ AlÀ N). The catalytic activity and mechanism of the resulting TM/LaÀ AlÀ N (TM = Ni, Co) are comparable to the previously reported TM/LaN catalyst. Notably, the catalytic activity did not degrade after exposure to air and moisture. Kinetic analysis and isotopic experiment showed that LaÀ AlÀ N is responsible for N 2 absorption and activation despite substantial Al being introduced into its lattice because the local coordination of the lattice N remained largely unchanged. These findings show the effectiveness of metallic bond formation, which can support the chemical stability of rare-earth nitrides with retention of catalytic functionality.

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Section: Resultsmentioning

confidence: 99%

Approach to Chemically Durable Nickel and Cobalt Lanthanum‐Nitride‐Based Catalysts for Ammonia Synthesis

et al. 2022

Angewandte Chemie

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“…The gained knowledge is essential to establishing innovative synthetic chemistry with inter‐site synergistic effects via atomic metal‐metal interactions, investigating the determining factors during the formation process of SACs, and exploring the optimal electronic and geometric structures with enhanced intrinsic activity and stability of SACs. Finally, the research approach developed by Qiao and colleagues could benefit other single‐metal‐site catalysts and be applied to other critical electrochemical reactions, e.g., O 2 , [9] N 2 , [10] and CO 2 reactions [11] …”

Section: Figurementioning

confidence: 99%

Single Platinum Atom Catalysts with High Density

Yang

2023

Angew Chem Int Ed

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As a new frontier, the rapid development of single-atom catalysts (SACs) in heterogeneous catalysis has attracted extensive attention. However, a fundamental understanding of the dynamic formation process of active metal atom sites is lacking. The rational design of high-performance SACs now becomes possible by explicitly addressing the conundrum of constructing high-density SACs and elucidating the evolution of SACs during the synthesis.

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“…The uterus was fixed with formalin and dehydrated in an increasing concentration of ethanol, then cleared in xylene and finally infiltrated and embedded with paraffin wax. Then, 5 µm thickness of a section (Figure 1) was subjected to haematoxylin and eosin stain prior to microscopic observation of any morphologic abnormalities (Woo et al, 2018).…”

Section: Weight Of Uterus Uterus Weight To Body Weight Ratiomentioning

confidence: 99%

Antioxidant-rich Clitoria ternatea L. flower and its benefits in improving murine reproductive performance

Goh

Kwong

et al. 2022

Food Sci. Technol

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Immune enhancement effect of an herb complex extract through the activation of natural killer cells and the regulation of cytokine levels in a cyclophosphamide-induced immunosuppression rat model

Cited by 11 publications

References 1 publication

Approach to Chemically Durable Nickel and Cobalt Lanthanum‐Nitride‐Based Catalysts for Ammonia Synthesis

Approach to Chemically Durable Nickel and Cobalt Lanthanum‐Nitride‐Based Catalysts for Ammonia Synthesis

Single Platinum Atom Catalysts with High Density

Antioxidant-rich Clitoria ternatea L. flower and its benefits in improving murine reproductive performance

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