Results 31 to 40 of about 1,404,550 (318)

Metabolomics Reveals Discrimination of Iranian Propolis Using LC-MS and NMR Analysis [PDF]

Iranian Journal of Chemistry & Chemical Engineering
Propolis is a multifaceted substance that bees produce using nectar from flowers, buds, tree gums, and resins found in plant stems, branches, and leaves.
Masoomeh Sharbatdaran, Mohammad Rezaee, Marzieh Heidarieh, Samira Shahbazi   +3 more
doaj   +1 more source

Isolation of new racemic sugar (D/L galacturonic acid) from leaves of Paederia foetida Linn. [PDF]

, 2011
New racemic sugars (D/L galacturonic acid) were isolate from the leaves of Paederia foetida Linn by the column chromatography.
Hans Raj Bhatt, Kamaruz Zaman, Md. Ali, Udaya Pratap Singh, Vikas Kumar, Yadav Pankajkumar S   +5 more
core   +2 more sources

Bromination of endo-7-norbornene derivatives revisited: failure of a computational NMR method in elucidating the configuration of an organic structure

Beilstein Journal of Organic Chemistry, 2023
Previously we reported on the bromination of endo-7-bromonorbornene at different temperatures yielding mixtures of addition products. The structural elucidations of the formed compounds were achieved by NMR spectroscopy. Particularly, the γ-gauche effect
Demet Demirci Gültekin, Arif Daştan, Yavuz Taşkesenligil, Cavit Kazaz, Yunus Zorlu, Metin Balci   +5 more
doaj   +1 more source

Composition of Ni2+ cation solvation shell in NiCl2–methanol solution by multinuclear NMR [PDF]

, 2011
1H-, 2H- and 13C-NMR spectra have been used to test the Ni2+ solvation shell composition in the 1.1 molal methanol solution of NiCl2. It has been confirmed that Cl− anion takes part in the nearest environment of Ni2+ cation at all the temperatures ...
Adya, Ashok K., Ingman, Petri, Kalugin, Oleg N., Lähderanta, Erkki, Matveev, Vladimir V., Zubkov, Mikhail   +5 more
core   +3 more sources

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

FEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman, Anna E. Lester, Brian D. Zoltowski   +2 more
wiley   +1 more source

A real case study on the physicochemical changes in crude palm oil (Elaeis guineensis) during the deep-frying of akara, traditional cowpea-paste balls, in Brazil

Grasas y Aceites, 2019
The objective of this study was to evaluate the physicochemical changes in crude palm oil during a real case of deep-frying of akara, cowpea-paste balls, fried and sold in the streets of Brazil.
S. Feitosa, E. F. Boffo, C. S.C. Batista, J. Velasco, C. S. Silva, R. Bonfim, D. T. Almeida   +6 more
doaj   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

The Solid State \u3csup\u3e13\u3c/sup\u3eC-NMR Spectra of Some Carbides [PDF]

, 1978
The utility of NMR spectroscopy to the study of liquids or solids dissolved in liquids is well known. This technique has been used infrequently to studies in the solid state[I,2]. Work has been done on diamond, graphite and coa113-6].
Haworth, Daniel T., Wilkie, Charles A.
core   +1 more source

Probing Quantum Hall Pseudospin Ferromagnet by Resistively Detected NMR

, 2009
Resistively Detected Nuclear Magnetic Resonance (RD-NMR) has been used to investigate a two-subband electron system in a regime where quantum Hall pseudo-spin ferromagnetic (QHPF) states are prominently developed. It reveals that the easy-axis QHPF state
C. Zhou, G. C. Guo, G. Cao, G. P. Guo, H. O. Li, H. W. Jiang, T. Tu, X. J. Hao, Y. J. Zhao, Z. R. Lin   +9 more
core   +1 more source

Targeting TNBC: core–shell polycationic polyurea dendrimers with inherent anticancer activity

FEBS Open Bio, EarlyView.
Core–shell polycationic PURE dendrimers were tested in TNBC‐derived tumor models. Both formulations selectively targeted TNBC and effectively reduced tumor volume. PUREG4‐OEI48 suppressed tumor growth without detectable toxicity, whereas PUREG4‐OCEI24, despite showing efficacy, induced hepatic toxicity.
Adriana Cruz, Bruna Abreu, Cindy Mendes, Catarina Freitas‐Dias, Filipe Gonçalves, Fernanda Silva, José Ramalho, Saudade André, Vasco D. B. Bonifácio, Jacinta Serpa   +9 more
wiley   +1 more source