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You searched for: Subject term nitric oxide Remove constraint Subject term: nitric oxide Subject term chemical reactions Remove constraint Subject term: chemical reactions
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1. GC-MS approach revealing hidden nitrite reactions in hemolysate using 18O-labelled nitrite and cysteine-based thiols

Author:
Dimitrios Tsikas
Source:
Analytical biochemistry 2021 v.613 pp. 114025
ISSN:
0003-2697
Subject:
chemical reactions; cysteine; erythrocytes; gas chromatography-mass spectrometry; hemoglobin; hemolysis; nitrates; nitric oxide; nitrites; stable isotopes; thiols
Abstract:
... In erythrocytes, nitric oxide (NO) and its autoxidation product nitrite undergo multiple reactions with hemoglobin species to form nitrate, Fe-nitrosyl hemoglobin (HbFe⁽ᴵᴵ⁾NO), S-nitrosohemoglobin (HbCysᵝ⁹³SNO), and other intermediates including nitrito-methemoblobin HbFe⁽ᴵᴵᴵ⁾ONO, nitro-methemoblobin HbFe⁽ᴵᴵᴵ⁾NO₂ and nitrous anhydride (N₂O₃). Here, we report a stable-isotope dilution GC-MS assay t ...
DOI:
10.1016/j.ab.2020.114025

2. Vitamin D and cardiovascular health

Author:
Fernando de la Guía-Galipienso; María Martínez-Ferran; Néstor Vallecillo; Carl J. Lavie; Fabian Sanchis-Gomar; Helios Pareja-Galeano
Source:
Clinical nutrition 2021 v.40 no.5 pp. 2946-2957
ISSN:
0261-5614
Subject:
biosynthesis; blood pressure; blood serum; calcitriol receptors; calcium; chemical reactions; clinical nutrition; diet; endothelial cells; fatty fish; fish liver oils; homeostasis; humans; incidence; mortality; mushrooms; myocytes; nitric oxide; oxidative stress; phosphorus; protective effect; risk factors; smooth muscle; solar radiation; vitamin D; vitamin D deficiency
Abstract:
... The principal source of vitamin D in humans is its biosynthesis in the skin through a chemical reaction dependent on sun exposure. In lesser amounts, the vitamin can be obtained from the diet, mostly from fatty fish, fish liver oil and mushrooms. Individuals with vitamin D deficiency, defined as a serum level of 25 hydroxyvitamin D < 20 ng/dl, should be supplemented. Vitamin D deficiency is a prev ...
DOI:
10.1016/j.clnu.2020.12.025

3. A heterobimetallic cumulenic μ-carbido complex

Author:
Anthony F. Hill; Lachlan J. Watson
Source:
Chemical communications 2020 v.56 no.15 pp. 2356-2359
ISSN:
1364-548X
Subject:
borates; carbon monoxide; chemical reactions; nitric oxide; rhenium
Abstract:
... The reaction [W(CSe)(CO)₂(Tp*)]NEt₄ (Tp* = hydrotris(dimethylpyrazolyl)borate) with N-methyl-N-nitroso-4-toluenesulfonamide affords the nitrosyl complex [W(CSe)(CO)(NO)(Tp*)] which on treatment with excess [Re(THF)(CO)₂(η-C₅H₅)] affords the cumuenic μ-carbido complex [WRe(μ-C)(CO)₃(NO)(Tp*)(η-C₅H₅)] in addition to the μ-selenido complex [Re₂(μ-Se)(CO)₄(η-C₅H₅)₂]. ...
DOI:
10.1039/c9cc08172k

4. Aspermeroterpenes A–C: Three Meroterpenoids from the Marine-Derived Fungus Aspergillus terreus GZU-31-1

Author:
Yuqian Tang; Yena Liu; Qingfeng Ruan; Min Zhao; Zhongxiang Zhao; Hui Cui
Source:
Organic letters 2020 v.22 no.4 pp. 1336-1339
ISSN:
1523-7052
Subject:
Aspergillus terreus; X-ray diffraction; chemical reactions; chemical structure; fungi; lipopolysaccharides; meroterpenoids; nitric oxide; quantum mechanics; spectroscopy
Abstract:
... Aspermeroterpene A (1) with an unprecedented and highly congested 5/3/6/6/6/5 hexacyclic skeleton, together with two precursors aspermeroterpenes B (2) and C (3), were isolated from the marine-derived fungus Aspergillus terreus GZU-31-1. Their structures were elucidated by quantum chemical calculations, X-ray diffraction, and spectroscopic methods. The biogenetic pathway for 1–3 is proposed. Asper ...
DOI:
10.1021/acs.orglett.9b04648

5. Chiral resolution, absolute configuration of two pairs of unusual monoterpene enantiomers from Eupatorium fortunei

Author:
Jing Shi; Min Yuan; Yue Yu; Sheng-Bin Shi; Yu-Guo Liu
Source:
Tetrahedron letters 2020 v.61 no.13 pp. 151655
ISSN:
0040-4039
Subject:
Eupatorium; aerial parts; chemical reactions; enantiomers; macrophages; monoterpenoids; nitric oxide; spectral analysis
Abstract:
... Two unusual monoterpene racemates, (±)-eupafortin A (1) and (±)-eupafortin B (2), were isolated from the aerial parts of Eupatorium fortunei. Subsequent chiral resolution led to the separation of two pairs of enantiomers, (+)- (1a) and (–)-eupafortin A (1b), (+)- (2a) and (–)-eupafortin B (2b), respectively. Their structures including absolute configurations were deduced based on spectroscopic ana ...
DOI:
10.1016/j.tetlet.2020.151655

6. Correction: O²-(6-Oxocyclohex-1-en-1-yl)methyl diazen-1-ium-1,2-diolates: a new class of nitric oxide donors activatable by GSH/GSTπ with both anti-proliferative and anti-metastatic activities against melanoma

Author:
Chengfeng Bai; Rongfang Xue; Jianbing Wu; Tian Lv; Xiaojun Luo; Yun Huang; Yan Gong; Honghua Zhang; Yihua Zhang; Zhangjian Huang
Source:
Chemical communications 2020 v.56 no.29 pp. 4130-4131
ISSN:
1364-548X
Subject:
chemical reactions; melanoma; nitric oxide
Abstract:
... Correction for ‘O²-(6-Oxocyclohex-1-en-1-yl)methyl diazen-1-ium-1,2-diolates: a new class of nitric oxide donors activatable by GSH/GSTπ with both anti-proliferative and anti-metastatic activities against melanoma’ by Chengfeng Bai et al., Chem. Commun., 2017, 53, 5059–5062. ...
DOI:
10.1039/d0cc90145h

7. Megastigmane Derivatives from the Cladodes of Opuntia humifusa and Their Nitric Oxide Inhibitory Activities in Macrophages

Author:
Mun Seok Jo; Seoyoung Lee; Jae Sik Yu; Su Cheol Baek; Young-Chang Cho; Ki Hyun Kim
Source:
Journal of natural products 2020 v.83 no.3 pp. 684-692
ISSN:
1520-6025
Subject:
Opuntia humifusa; Western blotting; anti-inflammatory activity; chemical reactions; circular dichroism spectroscopy; cladodes; dose response; glucosides; inducible nitric oxide synthase; lipopolysaccharides; macrophages; nitric oxide; nuclear magnetic resonance spectroscopy; phytochemicals; quantum mechanics; South Korea
Abstract:
... Opuntia humifusa, known as the eastern prickly pear cactus and locally called “Cheonnyuncho” in Korea, is cultivated widely on Jeju Island, Korea. Phytochemical analysis of the methanolic extract of the cladodes of O. humifusa, for which previous research is relatively limited, was performed under the guidance of LC/MS-based analysis. As a result, one new megastigmane (1) and four new megastigmane ...
DOI:
10.1021/acs.jnatprod.9b01120

8. Structural elucidation, bio-inspired synthesis, and biological activities of cyclic diarylpropanes from Horsfieldia kingii

Author:
Rui Zhan; Dashan Li; Yuan-Lie Liu; Xiao-Yan Xie; Lei Chen; Li-Dong Shao; Wen-Jing Wang; Ye-Gao Chen
Source:
Tetrahedron 2020 v.76 no.40 pp. 131494
ISSN:
0040-4020
Subject:
X-ray diffraction; acetone; bioactive properties; bioassays; biomimetic synthesis; branches; chemical reactions; chemical structure; circular dichroism spectroscopy; crystallography; enzyme inhibition; inducible nitric oxide synthase; inhibitory concentration 50; leaves; lignans; nitric oxide; phytochemicals; spectral analysis
Abstract:
... Bioactivity-guided phytochemical investigation on 70% aqueous acetone extracts of the twigs and leaves of Horsfieldia kingii led to the isolation of two novel cyclic diarylpropanes (1 and 2) bearing a 2,3-dihydro-1H-indene core, one new diarylpropane (3), six known diarylpropanes (4–9), one flavanol (10), and seven lignans (11–17). Their structures were determined by extensive spectroscopic analys ...
DOI:
10.1016/j.tet.2020.131494

9. A mitochondria-targeted nitric oxide donor triggered by superoxide radical to alleviate myocardial ischemia/reperfusion injury

Author:
Jingli Hou; Haiyan He; Saipeng Huang; Meng Qian; Jie Wang; Xiaoli Tan; Guifang Han; Yuguang Song; Zhelong Xu; Yangping Liu
Source:
Chemical communications 2019 v.55 no.9 pp. 1205-1208
ISSN:
1364-548X
Subject:
chemical reactions; heart; myocardial ischemia; nitric oxide; rats; reperfusion injury; superoxide anion
Abstract:
... A novel mitochondria-targeted superoxide-responsive nitric oxide donor was developed by incorporation of diphenylphosphinyl and triphenylphosphonium groups into diazeniumdiolate, enabling remarkable protection against ischemia/reperfusion injury in H9c2 cells and isolated rat hearts. ...
DOI:
10.1039/c8cc07304j

10. A nitroxyl-responsive near-infrared fluorescent chemosensor for visualizing H₂S/NO crosstalk in biological systems

Author:
Mingwang Yang; Jiangli Fan; Wen Sun; Jianjun Du; Saran Long; Kun Shao; Xiaojun Peng
Source:
Chemical communications 2019 v.55 no.59 pp. 8583-8586
ISSN:
1364-548X
Subject:
chemical reactions; fluorescence; fluorescent dyes; hydrogen sulfide; image analysis; mice; near-infrared spectroscopy; nitric oxide
Abstract:
... We present a near-infrared (NIR) fluorescent probe, NR-HNO, which was successfully applied to visualizing H₂S/NO “crosstalk” by the fluorescence detection of nitroxyl with a fast response time (5 min) and a large Stokes shift (131 nm) in living cells and tissue; it was also used to image nitroxyl in live mice. ...
DOI:
10.1039/c9cc04060a

11. Alkaloids including two rare variecolortides from the fungus Aspergillus ruber

Author:
Tizhuang Shan; Wei Jiang; Xin Liu; Chaojie Wang; Shuang Gao; Pengcheng Yan; Biyun Sun; Li Miao
Source:
Tetrahedron 2020 v.76 no.24 pp. 131258
ISSN:
0040-4020
Subject:
Aspergillus; alkaloids; anthraquinones; chemical reactions; chemical structure; fungi; high performance liquid chromatography; lipopolysaccharides; nitric oxide; spectral analysis
Abstract:
... Three new alkaloids, namely, (−)-(S)-variecolortide D (1a), (+)-(R)-variecolortide D (1b) and brevicompanine I (3), along with three known alkaloids (2, 4 and 5) were isolated from Aspergillus ruber WH4-1. Variecolortide D (1) is a racemic natural product composed of anthraquinone and isoechinulin alkaloid, separation of 1 by chiral HPLC, provided two optically pure enantioners (1a and 1b). The st ...
DOI:
10.1016/j.tet.2020.131258

12. Alkaloids of NIRAM, natural dye from Polygonum tinctorium, and their anti-inflammatory activities

Author:
Dong Hyun Kim; Chung Sub Kim; Lalita Subedi; Sun Yeou Kim; Kang Ro Lee
Source:
Tetrahedron letters 2019 pp. -
ISSN:
0040-4039
Subject:
Persicaria tinctoria; alkaloids; anti-inflammatory activity; chemical reactions; chemical structure; ethanol; inhibitory concentration 50; lipopolysaccharides; natural dyes; nitric oxide; nuclear magnetic resonance spectroscopy; phytochemicals
Abstract:
... Phytochemical investigation of EtOH extract of NIRAM, natural dye from Polygonum tinctorium, resulted in the purification of nine alkaloid compounds (1–9) including four new compounds (1–4). Structures of these new compounds were elucidated by 1D and 2D NMR (1H and 13C NMR, 1H–1H COSY, 1H–13C HSQC, 1H–13C HMBC), IR, UV, HR-ESI-MS, and ECD spectra. Isolated compounds (1–9) were tested for their inh ...
DOI:
10.1016/j.tetlet.2019.151130

13. Anti-inflammatory flavagline glycosides and putrescine bisamides from Aglaia perviridis leaves

Author:
Fa-Liang An; Wen-Jun Xu; Ming-Hua Yang; Jun Luo; Ling-Yi Kong
Source:
Tetrahedron 2020 v.76 no.25 pp. 131257
ISSN:
0040-4020
Subject:
Aglaia; anti-inflammatory activity; cell lines; chemical reactions; enantiomers; glycosides; inhibitory concentration 50; leaves; lipopolysaccharides; nitric oxide; putrescine; spectroscopy
Abstract:
... Four new cyclopenta[b]benzopyran glycosides (1–4), aglapervirisins J-M, two new putrescine bisamides (6–7), aglaiamides M − N, and a pair of novel flavagline enantiomer (±) aglapernin (8) were isolated from the leaves of A. perviridis. Their structures were elucidated based on comprehensive analysis of spectroscopic methods. The anti-inflammatory activities of those compounds were evaluated as inh ...
DOI:
10.1016/j.tet.2020.131257

14. Antibiofilm Nitric Oxide-Releasing Polydopamine Coatings

Author:
Zahra Sadrearhami; Farah Nabilah Shafiee; Kitty K. K. Ho; Naresh Kumar; Marta Krasowska; Anton Blencowe; Edgar H. H. Wong; Cyrille Boyer
Source:
ACS applied materials & interfaces 2019 v.11 no.7 pp. 7320-7329
ISSN:
1944-8252
Subject:
Pseudomonas aeruginosa; Staphylococcus aureus; X-ray photoelectron spectroscopy; adhesion; antibacterial properties; aqueous solutions; bacteria; bacterial culture; biofilm; chemical reactions; coatings; dopamine; glass; medical equipment; multiple drug resistance; nitric oxide; polyethylene glycol
Abstract:
... The growing number of patient morbidity related to nosocomial infections has placed an importance on the development of new antibacterial coatings for medical devices. Here, we utilize the versatile adhesion property of polydopamine (pDA) to design an antibacterial coating that possesses low-fouling and nitric oxide (NO)-releasing capabilities. To demonstrate this, glass substrates were functional ...
DOI:
10.1021/acsami.8b16853

15. Conversion of NOₓ¹⁻ (x = 2, 3) to NO using an oxygen-deficient polyoxovanadate–alkoxide cluster

Author:
Brittney E. Petel; Ellen M. Matson
Source:
Chemical communications 2020 v.56 no.4 pp. 555-558
ISSN:
1364-548X
Subject:
chemical reactions; nitric oxide; nitrites; oxyanions; oxygen
Abstract:
... We report the activation of nitrogen-containing oxyanions using an oxygen-deficient polyoxovanadate–alkoxide cluster. Reduction of NO₂¹⁻ and NO₃¹⁻ results in near-quantitative oxygen atom transfer to the coordinatively unsaturated Vᴵᴵᴵ ion, and selective formation of NO. These results provide insight into possible mechanisms of oxyanion reduction by polyoxometalates. ...
DOI:
10.1039/c9cc08230a

16. Deep imaging for visualizing nitric oxide in lipid droplets: discovering the relationship between nitric oxide and resistance to cancer chemotherapy drugs

Author:
Miantai Ye; Wei Hu; Meng He; Chenchen Li; Shuyang Zhai; Zhihong Liu; Yanying Wang; Huijuan Zhang; Chunya Li
Source:
Chemical communications 2020 v.56 no.46 pp. 6233-6236
ISSN:
1364-548X
Subject:
antineoplastic agents; chemical reactions; disease resistance; droplets; drug therapy; fluorescent dyes; image analysis; lipids; neoplasms; nitric oxide
Abstract:
... A near-infrared two-photon fluorescent probe (TAN) was synthesized for selective detection and deep-depth imaging of NO in lipid droplets. All results demonstrated that NO production in lipid droplets is closely correlated with the resistance to anti-tumor drugs, and NO inhibitors can effectively improve the efficacy of chemotherapeutic agents. ...
DOI:
10.1039/d0cc01856b

17. Enhanced electro-reduction of NO to NH3 on Pt cathode at electro-scrubber

Author:
Ramu Adam Gopal; Muthuraman Govindan; Il Shik Moon
Source:
Environmental science and pollution research international 2019 v.26 no.29 pp. 29517-29523
ISSN:
0944-1344
Subject:
Fourier transform infrared spectroscopy; absorption; ammonia; cathodes; chemical reactions; copper; electrochemistry; gases; nickel; nitric oxide; platinum
Abstract:
... Besides cheaper electrodes used in NH₃ product formation during NO degradation by mediated electrochemical reduction (MER), a specific electrode that can perform direct electrochemical reduction (DER) and MER of NO is an added advantage. In the present study, a Pt electrode was used to examine NO degradation through NH₃ formation during the electro-scrubbing process. Initially, the DER of NO was t ...
DOI:
10.1007/s11356-018-1606-1

18. New pyridone alkaloids from marine-derived fungus Penicillium sp.

Author:
Tingting Yan; Wangjing Ding; Hongwei Liu; Pin-Mei Wang; Dao-qiong Zheng; Jinzhong Xu
Source:
Tetrahedron letters 2020 pp. 151843
ISSN:
0040-4039
Subject:
Penicillium; X-ray diffraction; alkaloids; chemical reactions; chemical structure; digestive system; fungi; inhibitory concentration 50; nitric oxide; nuclear magnetic resonance spectroscopy; pyridones; shrimp
Abstract:
... Five new pyridone alkaloids Citridones H-L (1–5) along with one new natural product ent-Citridone A (6) were isolated from the marine-derived fungus Penicillium sp. XZD3-3, which came from the gut of a marine shrimp. The structures and absolute configurations of these compounds were elucidated on the basis of NMR, HRESIMS, UV, modified Mosher′s method, single-crystal X-ray diffraction, and ECD cal ...
DOI:
10.1016/j.tetlet.2020.151843

19. New triterpenoid saponin glycosides from the fruit fibers of Trichosanthes cucumerina L.

Author:
Parichat Suebsakwong; Wanatsanan Chulrik; Warangkana Chunglok; Jian-Xin Li; Zhu-Jun Yao; Apichart Suksamrarn
Source:
RSC advances 2020 v.10 no.18 pp. 10461-10470
ISSN:
2046-2069
Subject:
Trichosanthes cucumerina; chemical reactions; fruits; inhibitory concentration 50; lipopolysaccharides; nitric oxide; nuclear magnetic resonance spectroscopy; spectral analysis; triterpenoid saponins
Abstract:
... Five new triterpenoid saponin glycosides, trichocucumerisides A–E (1–5), together with eleven known compounds (6–16) were isolated from Trichosanthes cucumerina fruit fibers. The structures of the new compounds were elucidated by detailed analysis of NMR and mass spectroscopic data as well as chemical reactions. The anti-inflammatory study against nitric oxide (NO) production in lipopolysaccharide ...
DOI:
10.1039/d0ra01176b

20. One-pot synthesis of 2-amino-3,4-dicyanopyridines from ketoximes and tetracyanoethylene via Cu(I)-catalyzed cyclization

Author:
Ziwei Han; Jianguang Lv; Jianmin Zhang
Source:
Tetrahedron 2019 v.75 no.14 pp. 2162-2168
ISSN:
0040-4020
Subject:
chemical reactions; copper; moieties; nitric oxide; organic compounds; synthesis
Abstract:
... A novel approach to 2-amino-3,4-dicyanopyridines has been discovered from Cu(I)-catalyzed cyclizations of simple and easily available ketoximes and tetracyanoethylene (TCNE). The complexed radical mechanism involves cleavage of several OH/NO/CH bonds, and new CC/CN bonds formation. A wide variety of substrates with different functional groups could be smoothly converted into the corresponding prod ...
DOI:
10.1016/j.tet.2019.02.032

21. Panisuffrutin A, a highly degraded seco-triterpene derivative from Paeonia suffruticosa var. papaveracea (Andr.) Kerner

Author:
Yu Liang; Wen-Xuan Wang; Xing Wu; Meng Wang; Chao-Jun Pu; Zheng-Hui Li; Tao Feng; Juan He; Ji-Kai Liu
Source:
Tetrahedron letters 2019 v.60 no.28 pp. 1838-1840
ISSN:
0040-4039
Subject:
Paeonia suffruticosa; biochemical pathways; cell lines; chemical reactions; chemical structure; cytotoxicity; inhibitory concentration 50; neoplasm cells; nitric oxide; nuclear magnetic resonance spectroscopy; organic compounds
Abstract:
... Panisuffrutin A (1), a highly degraded seco-triterpene derivative, together with the known palbinone, has been isolated from the whole plant Paeonia suffruticosa var. papaveracea (Andr.) Kerner. The structure with absolute configuration of 1 was determined via comprehensive NMR and MS analyses, as well as NMR and ECD calculations. A plausible biosynthetic pathway for 1 was proposed. Compound 1 sho ...
DOI:
10.1016/j.tetlet.2019.06.009

22. S-Nitrosylation: An Emerging Paradigm of Redox Signaling

Author:
Veani Fernando; Xunzhen Zheng; Yashna Walia; Vandana Sharma; Joshua Letson; Saori Furuta
Source:
Antioxidants 2019 v.8 no.9 pp. -
ISSN:
2076-3921
Subject:
arginine; chemical reactions; cysteine; human diseases; mammals; moieties; neoplasms; nitric oxide; nitric oxide synthase; oxidative stress; post-translational modification; proteins; thiols
Abstract:
... Nitric oxide (NO) is a highly reactive molecule, generated through metabolism of L-arginine by NO synthase (NOS). Abnormal NO levels in mammalian cells are associated with multiple human diseases, including cancer. Recent studies have uncovered that the NO signaling is compartmentalized, owing to the localization of NOS and the nature of biochemical reactions of NO, including S-nitrosylation. S-ni ...
DOI:
10.3390/antiox8090404
PubMed:
31533268
PubMed Central:
PMC6769533

23. Step-wise functionalization of polysiloxane towards a versatile dual-response fluorescent probe and elastomer for the detection of H₂S in two-photon and NO in near-infrared modes

Author:
Yujing Zuo; Xiaoni Wang; Zhiming Gou; Weiying Lin
Source:
Chemical communications 2020 v.56 no.7 pp. 1121-1124
ISSN:
1364-548X
Subject:
chemical reactions; fluorescent dyes; hydrogen sulfide; near-infrared spectroscopy; nitric oxide; siloxanes
Abstract:
... Simultaneous detection of gasotransmitters such as NO and H₂S is a crucial task to investigate the complicated relationship between NO and H₂S. In this work, we presented a new approach to construct a dual response fluorescent probe for NO/H₂S by step-wise functionalization of polysiloxanes. A near-infrared (NIR) and two-photon (TP) fluorescent probe, P-CYN, was fabricated for respectively visuali ...
DOI:
10.1039/c9cc08723k

24. Synthesis and nitric oxide releasing properties of novel fluoro S-nitrosothiols

Author:
Yang Zhou; Jinyi Tan; Yuping Dai; Yanmin Yu; Qi Zhang; Mark E. Meyerhoff
Source:
Chemical communications 2019 v.55 no.3 pp. 401-404
ISSN:
1364-548X
Subject:
chemical reactions; medical equipment; new species; nitric oxide; sulfides
Abstract:
... A series of new fluoro S-nitrosothiols is reported as potential nitric oxide (NO) donors. A three-step synthesis and the NO releasing kinetic profiles of these species are presented. The stoichiometric release of NO, with the clean formation of corresponding disulfides, confirms that these new species can facilitate their application as NO donors for various applications including creating novel a ...
DOI:
10.1039/c8cc08868c
PubMed:
30542676
PubMed Central:
PMC6380185

25. Tabernabovines A–C: Three Monoterpenoid Indole Alkaloids from the Leaves of Tabernaemontana bovina

Author:
Yang Yu; Mei-Fen Bao; Jing Wu; Jing Chen; Yu-Rong Yang; Johann Schinnerl; Xiang-Hai Cai
Source:
Organic letters 2019 v.21 no.15 pp. 5938-5942
ISSN:
1523-7052
Subject:
Tabernaemontana; chemical reactions; chemical structure; indole alkaloids; inhibitory concentration 50; leaves; monoterpenoids; nitric oxide; spectral analysis; tryptamine
Abstract:
... Three monoterpenoid indole alkaloids (MIAs), tabernabovines A–C (1–3), were isolated from Tabernaemontana bovina. They were elucidated by spectroscopic data and computational calculations. Unlike precursors of MIAs, strictosidine and alstrostine A, alkaloid 1 consists of tryptamine and secologanin in a 2:1 ratio. Alkaloid 2 is a cage compound, and 3 possesses a bridged ring. Tabernabovine A exhibi ...
DOI:
10.1021/acs.orglett.9b02060

26. Tetrazine-mediated bioorthogonal removal of 3-isocyanopropyl groups enables the controlled release of nitric oxide in vivo

Author:
Jianbing Wu; Tao Sun; Chenxi Yang; Tian Lv; Yuyang Bi; Yuan Xu; Yong Ling; Jun Zhao; Rigang Cong; Yihua Zhang; Jianhua Wang; Hao Wen; Hulin Jiang; Fei Li; Zhangjian Huang
Source:
Biomaterials science 2021 v.9 no.5 pp. 1816-1825
ISSN:
2047-4849
Subject:
Danio rerio; acrolein; biocompatible materials; cancer therapy; cell growth; chemical reactions; cleavage (chemistry); free radicals; neoplasm cells; neoplasms; nitric oxide
Abstract:
... Bond cleavage bioorthogonal chemistry has been widely employed to restore or activate proteins or prodrugs. Nitric oxide (NO), as a free radical molecule, has joined the clinical arena of cancer therapy, since high levels of NO could produce a cancer cell growth inhibitory effect. However, the spatiotemporal controlled release of NO remains a great challenge, and bioorthogonal chemistry may open a ...
DOI:
10.1039/d0bm01841d

27. The Biologically Relevant Coordination Chemistry of Iron and Nitric Oxide: Electronic Structure and Reactivity

Author:
Nicolai Lehnert; Eunsuk Kim; Hai T. Dong; Jill B. Harland; Andrew P. Hunt; Elizabeth C. Manickas; Kady M. Oakley; John Pham; Garrett C. Reed; Victor Sosa Alfaro
Source:
Chemical reviews 2021 v.121 no.24 pp. 14682-14905
ISSN:
1520-6890
Subject:
biomedical research; biosynthesis; catalysts; chemical reactions; coordination compounds; energy; geometry; guanylate cyclase; heme; iron; nitric oxide; nitric oxide synthase; nitrites
Abstract:
... Nitric oxide (NO) is an important signaling molecule that is involved in a wide range of physiological and pathological events in biology. Metal coordination chemistry, especially with iron, is at the heart of many biological transformations involving NO. A series of heme proteins, nitric oxide synthases (NOS), soluble guanylate cyclase (sGC), and nitrophorins, are responsible for the biosynthesis ...
DOI:
10.1021/acs.chemrev.1c00253

28. Two anti-inflammatory chlorinated azaphilones from Chaetomium globosum TW1-1 cultured with 1-methyl-l-tryptophan and structure revision of chaephilone C

Author:
Weixi Gao; Chenwei Chai; Xiao-Nian Li; Weiguang Sun; Fengli Li; Chunmei Chen; Jianping Wang; Hucheng Zhu; Yanyan Wang; Zhengxi Hu; Yonghui Zhang
Source:
Tetrahedron letters 2020 v.61 no.8 pp. 151516
ISSN:
0040-4039
Subject:
Chaetomium globosum; X-ray diffraction; anti-inflammatory activity; chemical reactions; chemical structure; chlorine; fungi; inhibitory concentration 50; nitric oxide; organic compounds; rice; spectral analysis
Abstract:
... By feeding 1-methyl-l-tryptophan (1-MT) into the inactivated rice cultures of an arthropod-derived fungus Chaetomium globosum TW1-1, two new chlorinated azaphilones (1 and 2) were isolated and identified. Their structures incorporating absolute configurations were determined by comprehensive spectroscopic analyses and single-crystal X-ray diffraction. Remarkably, chaephilone C, which was reported ...
DOI:
10.1016/j.tetlet.2019.151516

29. A cyotosol-selective nitric oxide bomb as a new paradigm of an anticancer drug

Author:
Dongsik Park; Sooseok Im; Gurusamy Saravanakumar; Yeong Mi Lee; Jinhwan Kim; Kunho Kim; Junseok Lee; Jihoon Kim; Won Jong Kim
Source:
Chemical communications 2019 v.55 no.98 pp. 14789-14792
ISSN:
1364-548X
Subject:
antineoplastic agents; chemical reactions; glutathione; intravenous injection; micelles; nitric oxide; polymers; remission
Abstract:
... We have reported rational design of a polymeric NO delivery micelle as a cytosol-selective NO bomb. Protected NO-donors are released from the micelle under endolysosomal conditions, and then deprotected by cytosolic glutathione. Cytosol-selective NO delivery facilitates significant tumor regression without the aid of other therapeutic modalities even in intravenous administrations. ...
DOI:
10.1039/c9cc08028g

30. Applicability of a closed-path quantum cascade laser spectrometer for eddy covariance (EC) flux measurements of nitric oxide (NO) over a cropland during a low emission period

Author:
Kai Wang; Dong Wang; Xunhua Zheng; David D. Nelson
Source:
Agricultural and forest meteorology 2020 v.282-283 pp. 107855
ISSN:
0168-1923
Subject:
absorption; carbon dioxide; chemical reactions; confidence interval; cropland; detection limit; eddy covariance; emissions factor; forests; meteorology; nitric oxide; soil; spectrometers; summer; vegetables
Abstract:
... Croplands are important sources of atmospheric nitric oxide (NO). However, high-frequency measurements of NO fluxes over croplands using the eddy covariance (EC) technique are still scarce, mainly due to instrumental limitation. In this study, a closed-path NO analyzer based on a quantum cascade laser (QCL) absorption spectrometer was employed for EC flux measurements over a subtropical vegetable ...
DOI:
10.1016/j.agrformet.2019.107855

31. Cembrane diterpenoids from the whole plant of Tournefortia sibirica

Author:
Shengbao Diao; Mei Jin; Jinfeng Sun; Chunshi Jin; Rongshen Wang; Wei Zhou; Gao Li
Source:
Tetrahedron letters 2020 v.61 no.4 pp. 151413
ISSN:
0040-4039
Subject:
Tournefortia; anti-inflammatory activity; chemical reactions; chemical structure; diterpenoids; interleukin-6; nitric oxide; nuclear magnetic resonance spectroscopy; tumor necrosis factor-alpha
Abstract:
... Four new cembrane diterpenoids (1–4), along with four known compounds (5–8), were isolated from the whole plant of Tournefortia sibirica L. Their structures of these new compounds were elucidated mainly using NMR, HRESIMS and a modified version of Mosher’s method. The anti-inflammatory effects of the isolated compounds (1–8) were evaluated in terms of inhibition of production of nitric oxide, tumo ...
DOI:
10.1016/j.tetlet.2019.151413

32. Development and cellular application of visible-light-controllable HNO releasers based on caged Piloty's acid

Author:
Mitsuyasu Kawaguchi; Takuma Tani; Ryoma Hombu; Naoya Ieda; Hidehiko Nakagawa
Source:
Chemical communications 2018 v.54 no.73 pp. 10371-10374
ISSN:
1364-548X
Subject:
chemical reactions; equipment; hydroxamic acids; nitric oxide
Abstract:
... Nitroxyl (HNO) is a gaseous molecule with unique pharmacological functions distinct from those of nitric oxide. Because HNO is highly reactive with biological molecules, spatiotemporally controllable HNO releasers are required. Herein, we report the first visible-light-controllable HNO releasers, based on caged Piloty's acid, and we demonstrate their applicability in living cells. ...
DOI:
10.1039/c8cc04954h

33. Diaporindenes A–D: Four Unusual 2,3-Dihydro-1H-indene Analogues with Anti-inflammatory Activities from the Mangrove Endophytic Fungus Diaporthe sp. SYSU-HQ3

Author:
Hui Cui; Yena Liu; Jing Li; Xishan Huang; Tao Yan; Wenhao Cao; Hongju Liu; Yuhua Long; Zhigang She
Source:
Journal of organic chemistry 2018 v.83 no.19 pp. 11804-11813
ISSN:
1520-6904
Subject:
Diaporthe; X-ray diffraction; alkaloids; anti-inflammatory activity; benzophenones; chemical reactions; endophytes; fungi; inhibitory concentration 50; isomers; mass spectrometry; moieties; neuroglia; nitric oxide; organic chemistry; quantum mechanics; spectral analysis; structure-activity relationships; ultra-performance liquid chromatography
Abstract:
... Diaporindenes A–D (1–4), four unusual 2,3-dihydro-1H-indene isomers, a novel isoprenylisobenzofuran A (5), two new isoprenylisoindole alkaloids diaporisoindoles D and E (6 and 7), and a new benzophenone derivative tenellone D (11), together with four known biogenetic agents (8–10 and 12), were all separated from the endophytic fungus Diaporthe sp. SYSU-HQ3 guided by ultraperformance liquid chromat ...
DOI:
10.1021/acs.joc.8b01738

34. Dimeric Cadinane Sesquiterpenoid Derivatives from Artemisia annua

Author:
Da-Peng Qin; Da-Bo Pan; Wei Xiao; Hai-Bo Li; Biao Yang; Xiao-Jun Yao; Yi Dai; Yang Yu; Xin-Sheng Yao
Source:
Organic letters 2018 v.20 no.2 pp. 453-456
ISSN:
1523-7052
Subject:
Artemisia annua; X-ray diffraction; cell lines; chemical reactions; chemical structure; circular dichroism spectroscopy; inhibitory concentration 50; macrophages; mice; nitric oxide; nuclear magnetic resonance spectroscopy; sesquiterpenoids
Abstract:
... Arteannoide A (1), an unusual cadinane dimer featuring a rare fused 6,8-dioxabicyclo[3.2.l]octan-7-one ring system, arteannoides B and C (2 and 3), two novel heterodimers incorporating a rearranged cadinene sesquiterpenoid and a phenylpropanoid, together with two new rearranged cadinene sesquiterpenoids 4 and 5, were isolated from Artemisia annua L. Their structures were determined by a combinatio ...
DOI:
10.1021/acs.orglett.7b03796

35. Guianofruits C–I from fruit oil of andiroba (Carapa guianensis, Meliaceae)

Author:
Yuuta Tsukamoto; Hiroto Oya; Takashi Kikuchi; Takeshi Yamada; Reiko Tanaka
Source:
Tetrahedron 2019 v.75 no.9 pp. 1149-1156
ISSN:
0040-4020
Subject:
Carapa guianensis; chemical reactions; chemical structure; fruits; limonoids; macrophages; mice; nitric oxide; nuclear magnetic resonance spectroscopy; oils; spectral analysis; traditional medicine; Brazil
Abstract:
... Two novel chukrasone-type limonoids, named Guianofruits C and D (1 and 2), a guianolide derivative named Guianofruit E (3), and four novel phragmalin–type limonoids named Guianofruits F–I (4–7), were isolated from the fruit oil of Carapa guianensis AUBLET (Meliaceae), a traditional medicine in Brazil and Latin American countries. Their structures were mainly elucidated based on spectroscopic analy ...
DOI:
10.1016/j.tet.2018.12.036

36. Hypatulone A, a Homoadamantane-Type Acylphloroglucinol with an Intricately Caged Core from Hypericum patulum

Author:
Yang-Yang Liu; Zhen Ao; Gui-Min Xue; Xiao-Bing Wang; Jian-Guang Luo; Ling-Yi Kong
Source:
Organic letters 2018 v.20 no.24 pp. 7953-7956
ISSN:
1523-7052
Subject:
Hypericum patulum; biochemical pathways; cell lines; chemical reactions; chemical structure; circular dichroism spectroscopy; inhibitory concentration 50; nitric oxide; organic compounds; spectral analysis
Abstract:
... Hypatulone A (1), an acylphloroglucinol possessing an unprecedented homoadamantane architecture based on a tricyclo-[4.3.1.1³,⁸]-undecane core and a unique 5/5/7/6/6 pentacyclic ring system, together with its biogenetic precursor hyperbeanol B (2), was isolated from Hypericum patulum. The structure of 1 was elucidated by extensive spectroscopic analysis and electronic circular dichroism calculatio ...
DOI:
10.1021/acs.orglett.8b03523

37. Microbial transformation of laxogenin by the fungus Syncephalastrum racemosum

Author:
Yihai Wang; Limin Xiang; Yuying Huang; Xiaomin Yi; Xiangjiu He
Source:
Tetrahedron 2019 v.75 no.10 pp. 1440-1449
ISSN:
0040-4020
Subject:
Syncephalastrum racemosum; biotransformation; catalytic activity; chemical reactions; chemical structure; fungi; inducible nitric oxide synthase; metabolites; nitric oxide; organic compounds; spectral analysis
Abstract:
... Biotransformation of laxogenin (LG, 1) was performed by the fungus Syncephalastrum racemosum (AS 3.264). Thirteen previously undescribed metabolites were obtained and their structures were elucidated by spectroscopic analysis. S. racemosum catalyzes mainly oxygenation reactions of the B, C, and D rings of the sapogenin to afford metabolites 2–12. Conversion of the spirostanol skeleton to cholestan ...
DOI:
10.1016/j.tet.2019.01.064

38. NO release regulated by doxorubicin as the green light-harvesting antenna

Author:
Aurore Fraix; Cristina Parisi; Mariacristina Failla; Konstantin Chegaev; Francesca Spyrakis; Loretta Lazzarato; Roberta Fruttero; Alberto Gasco; Salvatore Sortino
Source:
Chemical communications 2020 v.56 no.47 pp. 6332-6335
ISSN:
1364-548X
Subject:
DNA; chemical reactions; doxorubicin; drug therapy; green light; nitric oxide
Abstract:
... We report for the first time a NO photodonor (NOPD) operating with the widely used chemotherapeutic agent doxorubicin (DOX) as the light-harvesting antenna. This permits NO uncaging from an N-nitroso appendage upon selective excitation of DOX with highly biocompatible green light, without precluding its typical red emission. This NOPD effectively binds DNA and photodelivers NO nearby, representing ...
DOI:
10.1039/d0cc02512g

39. Nitric Oxide Sensing through 1,2,3,4-Oxatriazole Formation from Acylhydrazide: A Kinetic Study

Author:
Abu Saleh Musha Islam; Rahul Bhowmick; Bidhan Chandra Garain; Atul Katarkar; Mahammad Ali
Source:
Journal of organic chemistry 2018 v.83 no.21 pp. 13287-13295
ISSN:
1520-6904
Subject:
azides; biochemical compounds; carboxylic acids; chemical reactions; hydrazides; image analysis; moieties; nitrates; nitric oxide; organic chemistry; triazoles; water solubility
Abstract:
... A simple molecular probe displays highly selective turn-on response toward NO by the unprecedented NO-induced formation of a 1,2,3,4-oxatriazole ring exhibiting no interference from various endogenous biomolecules including DHA, AA, etc. Kinetics of the reactions between NO and the probe provide a mechanistic insight into the formation of 1,2,3,4-oxatriazole which showed that, though initially 1,2 ...
DOI:
10.1021/acs.joc.8b02110

40. Novel α-ketoamide based diazeniumdiolates as hydrogen peroxide responsive nitric oxide donors with anti-lung cancer activity

Author:
Junjie Fu; Jing Han; Tingting Meng; Jing Hu; Jian Yin
Source:
Chemical communications 2019 v.55 no.86 pp. 12904-12907
ISSN:
1364-548X
Subject:
chemical reactions; hydrogen peroxide; lung neoplasms; mechanism of action; neoplasm cells; nitric oxide
Abstract:
... A novel type of hydrogen peroxide (H₂O₂)-activated diazeniumdiolate based on an α-ketoamide moietey was developed as a nitric oxide (NO) donor. KA-NO-4 inhibited lung cancer cells with submicromolar activity. The H₂O₂-responsive behaviour of KA-NO-4 was thoroughly investigated. The NO-centered mechanism of action of KA-NO-4 was intracellularly studied. ...
DOI:
10.1039/c9cc05266f

41. Pseudoguaianelactones A–C: three unusual sesquiterpenoids from Lindera glauca with anti-inflammatory activities by inhibiting the LPS-induced expression of iNOS and COX-2

Author:
Qing-feng Ruan; Shi-qin Jiang; Xiao-yun Zheng; Yu-qian Tang; Bao Yang; Tao Yi; Jing Jin; Hui Cui; Zhongxiang Zhao
Source:
Chemical communications 2020 v.56 no.10 pp. 1517-1520
ISSN:
1364-548X
Subject:
Lindera glauca; anti-inflammatory activity; chemical reactions; inducible nitric oxide synthase; inhibitory concentration 50; interleukin-1beta; interleukin-6; moieties; nitric oxide; protein synthesis; roots; sesquiterpenoid lactones; tumor necrosis factor-alpha
Abstract:
... The pseudoguaianelactones A (1) and B (2), two novel sesquiterpene lactones with an unprecedented [5,7,7] ring system featuring an α-methylene-γ-lactone moiety, together with a new pseudoguaianelactone C (3) were isolated from the roots of Lindera glauca. Pseudoguaianelactones A–C (1–3) inhibited nitric oxide (NO) production, with IC₅₀ values ranging from 1.38 to 4.00 μM. Moreover, all compounds s ...
DOI:
10.1039/c9cc09159a

42. Rational design of alkali-resistant catalysts for selective NO reduction with NH₃

Author:
Chao Li; Zhiwei Huang; Xiaona Liu; Junxiao Chen; Weiye Qu; Xiaoming Jiang; Hu Wang; Zhen Ma; Xingfu Tang; Yaxin Chen
Source:
Chemical communications 2019 v.55 no.66 pp. 9853-9856
ISSN:
1364-548X
Subject:
active sites; ammonia; catalysts; chemical reactions; nitric oxide
Abstract:
... A rationale for designing selective NO reduction catalysts with strong alkali resistance was proposed, based on extensive studies of a variety of catalysts with common characteristics of separate catalytically active sites and alkali-trapping sites. ...
DOI:
10.1039/c9cc04178h

43. Removal of Hg⁰ from Simulated Flue Gas by Ultraviolet Light/Heat/Persulfate Process in an UV-Impinging Stream Reactor

Author:
Yangxian Liu; Yan Wang
Source:
Energy & fuels 2018 v.32 no.12 pp. 12416-12425
ISSN:
1520-5029
Subject:
ammonium persulfate; chemical reactions; flue gas; fuels; heat; hydroxyl radicals; mass transfer; mercury; nitric oxide; pH; sulfur dioxide; temperature; turbulent flow; ultraviolet radiation
Abstract:
... Removal of Hg⁰ from simulated flue gas by ultraviolet light (UV)/heat/ammonium persulfate process in an UV-impinging stream reactor was investigated for the first time. Experiments were conducted to evaluate the effects of several parameters and gas composition on Hg⁰ removal. Mechanism and kinetics of Hg⁰ removal were also investigated. The results indicated that Hg⁰ removal efficiency was increa ...
DOI:
10.1021/acs.energyfuels.8b03385

44. A live bacteria SERS platform for the in situ monitoring of nitric oxide release from a single MRSA

Author:
Zhijun Zhang; Xuemei Han; Zhimin Wang; Zhe Yang; Wenmin Zhang; Juan Li; Huanghao Yang; Xing Yi Ling; Bengang Xing
Source:
Chemical communications 2018 v.54 no.51 pp. 7022-7025
ISSN:
1364-548X
Subject:
Raman spectroscopy; antibiotics; bacteria; chemical reactions; methicillin-resistant Staphylococcus aureus; mixed infection; monitoring; nitric oxide
Abstract:
... A simple and unique surface-enhanced Raman spectroscopy (SERS) platform is developed for the precise and sensitive in situ monitoring of nitric oxide (NO) release from an individual bacterium. Using this live bacteria SERS platform, NO release from MRSA under the stress of antibiotics and co-infected bacteria was evaluated. ...
DOI:
10.1039/c8cc02855a

45. An air-stable N-heterocyclic carbene iminoxyl borate radical zwitterion

Author:
Youngsuk Kim; Eunsung Lee
Source:
Chemical communications 2018 v.54 no.50 pp. 6824-6827
ISSN:
1364-548X
Subject:
air; borates; carbenes; chemical reactions; heterocyclic nitrogen compounds; moieties; nitric oxide; zwitterions
Abstract:
... A remarkably stable radical zwitterion derived from N-heterocyclic carbene nitric oxide and B(C₆F₅)₃ is reported. The presented radical was generated by steric and electronic protection of the nitric oxide moiety using B(C₆F₅)₃, which secured its stability toward air and moisture. An analogous yet less stable radical derived from C(C₆H₅)₃⁺ is also synthesized and characterized. ...
DOI:
10.1039/c8cc01399c

46. Diterpenoids from the gum resin of Boswellia carterii and their biological activities

Author:
Jinqian Yu; Yanling Geng; Hongwei Zhao; Xiao Wang
Source:
Tetrahedron 2018 v.74 no.40 pp. 5858-5866
ISSN:
0040-4020
Subject:
Boswellia; anti-inflammatory activity; breast neoplasms; chemical reactions; chemical structure; diterpenoids; humans; inhibitory concentration 50; neoplasm cells; nitric oxide; spectral analysis
Abstract:
... Seven new diterpenoids, classified as three cembrane-type diterpenoids boscartins I-K (1–3) and four prenylaromadendrane-type diterpenoids boscartols K-N (4–7), respectively, along with nine known diterpenoids, were isolated from the gum resin of Boswellia carterii. Their structure elucidations were achieved by spectroscopic examination. All isolates were evaluated for anti-inflammatory activity a ...
DOI:
10.1016/j.tet.2018.08.004

47. Environmental and biological controls on seasonal patterns of isoprene above a rain forest in central Amazonia

Author:
Dandan Wei; Jose D. Fuentes; Tobias Gerken; Marcelo Chamecki; Amy M. Trowbridge; Paul C. Stoy; Gabriel G. Katul; Gilberto Fisch; Otávio Acevedo; Antonio Manzi; Celso von Randow; Rosa Maria Nascimento dos Santos
Source:
Agricultural and forest meteorology 2018 v.256-257 pp. 391-406
ISSN:
0168-1923
Subject:
air; biological control; chemical reactions; emissions; fluid mechanics; hydroxyl radicals; isoprene; leaf area index; leaves; meteorological data; mixing ratio; models; nitric oxide; phenology; rain forests; recycling; seasonal variation; solar radiation; temperature; troposphere; volatile organic compounds; Amazonia; Brazil
Abstract:
... The Amazon rain forest is a major global isoprene source, but little is known about its seasonal ambient concentration patterns. To investigate the environmental and phenological controls over isoprene seasonality, we measured isoprene mixing ratios, concurrent meteorological data, and leaf area indices from April 2014 to January 2015 above a rain forest in the central Amazon, Brazil. Daytime medi ...
DOI:
10.1016/j.agrformet.2018.03.024

48. Eremophilane-type sesquiterpenoids in a deep-sea fungus Eutypella sp. activated by chemical epigenetic manipulation

Author:
Siwen Niu; Dong Liu; Zongze Shao; Peter Proksch; Wenhan Lin
Source:
Tetrahedron 2018 v.74 no.51 pp. 7310-7325
ISSN:
0040-4020
Subject:
Eutypella; X-ray diffraction; chemical reactions; chemical structure; chromatography; enzyme inhibitors; epigenetics; fungi; histone deacetylase; lipopolysaccharides; macrophages; metabolites; nitric oxide; nuclear magnetic resonance spectroscopy; sesquiterpenoids
Abstract:
... Cultivation of a deep-sea-derived fungus Eutypella sp. MCCC 3A00281 by a chemical epigenetic manipulation using suberohydroxamic acid (SBHA), a histone deacetylase inhibitor (HDI), resulted in the significant change of the metabolite profile. Chromatographic application of the extended metabolites led to the isolation of a total of 30 eremophilane-type sesquiterpenoids, of which 26 were identified ...
DOI:
10.1016/j.tet.2018.10.056

49. Exposed metal oxide active sites on mesoporous titania channels: a promising design for low-temperature selective catalytic reduction of NO with NH₃

Author:
Jianwei Fan; Menghua Lv; Wei Luo; Xianqiang Ran; Yonghui Deng; Wei-xian Zhang; Jianping Yang
Source:
Chemical communications 2018 v.54 no.30 pp. 3783-3786
ISSN:
1364-548X
Subject:
active sites; ammonia; catalysts; chemical reactions; cupric oxide; manganese dioxide; nitric oxide; porous media; sulfur dioxide; titanium dioxide
Abstract:
... A subtle catalyst design is provided with stably incorporated binary catalytically active centers of CuO and MnO₂ on the surface wall of mesoporous TiO₂. Such unique features render these mesoporous composites highly promising in the low-temperature selective catalytic reduction of NO with NH₃, including high NO conversion efficiency, and superior H₂O and SO₂ resistance. ...
DOI:
10.1039/c8cc01003j

50. Fast response two-photon fluorogenic probe based on Schiff base derivatives for monitoring nitric oxide levels in living cells and zebrafish

Author:
Chenchen Xu; Chenqi Xin; Changmin Yu; Meirong Wu; Jiajia Xu; Wenjing Qin; Yang Ding; Xuchun Wang; Lin Li; Wei Huang
Source:
Chemical communications 2018 v.54 no.96 pp. 13491-13494
ISSN:
1364-548X
Subject:
Danio rerio; chemical derivatives; chemical reactions; fluorescence; image analysis; moieties; monitoring; nitric oxide; schiff bases; wavelengths
Abstract:
... Numerous excellent fluorogenic probes for NO detection based on NO-mediated reactions have been developed. However, some of them still suffer from limitations such as low selectivity, slow response, and a short excitation wavelength (<500 nm). Herein, a novel two-photon fluorogenic probe (XNO1) based on a Schiff base derivative has been reported for the first time. This new mechanism with a Schiff ...
DOI:
10.1039/c8cc06698a