Results 11 to 20 of about 1,617,490 (298)

Assessing Meat Freshness via Nanotechnology Biosensors: Is the World Prepared for Lightning-Fast Pace Methods?

Biosensors, 2023
In the rapidly evolving field of food science, nanotechnology-based biosensors are one of the most intriguing techniques for tracking meat freshness.
Wen Xia Ling Felicia, Kobun Rovina, Nasir Md Nur ‘Aqilah, Joseph Merillyn Vonnie, Koh Wee Yin, Nurul Huda   +5 more
doaj   +1 more source

Creatinine and purine derivatives excretion and microbial synthesis in lambs fed rain tree pod meal

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2022
Evaluated the levels of rain tree (Samanea saman) pod meal (RTPM) (0, 10, 15, 20 and 25%) replacing maize in the dry matter of the diet on intake of DM, CP and ME, creatinine and total purine derivatives excretion in urine and microbial protein synthesis
L.B. Sousa, M.L.A. Pereira, H.G.O. Silva, L.S. Silva, E.J. Santos, T.C.J. Pereira, G.S. Correia, L.B. Sousa, C.A.R. Pereira   +8 more
doaj   +1 more source

Fragment-based approach to novel bioactive purine derivatives

Pure and Applied Chemistry, 2020
Using purine as a scaffold, the methods for preparation of novel 2-aminopurine and purine derivatives substituted at position C 6 by the fragments of natural amino acids, short peptides, and N-heterocycles, including enantiopure ones, have been proposed.
V. Krasnov, G. Levit, V. V. Musiyak, D. Gruzdev, V. Charushin   +4 more
semanticscholar   +1 more source

Functionalized Solid Electrodes for Electrochemical Biosensing of Purine Nucleobases and Their Analogues: A Review

Sensors, 2015
Interest in electrochemical analysis of purine nucleobases and few other important purine derivatives has been growing rapidly. Over the period of the past decade, the design of electrochemical biosensors has been focused on achieving high sensitivity ...
Vimal Kumar Sharma, Frantisek Jelen, Libuse Trnkova   +2 more
doaj   +1 more source

Níveis de uréia na ração de novilhos de quatro grupos genéticos: estimativa da produção de proteína microbiana por meio dos derivados de purinas na urina utilizando duas metodologias de coleta Urea levels in diet for steers of four genetic groups: microbial protein production by the urinary purine derivatives, using two collection methodologies

Revista Brasileira de Zootecnia, 2008
Objetivou-se avaliar o efeito de quatro níveis de uréia na ração: 0; 0,65; 1,3 e 1,95% na matéria seca (MS), sobre a estimativa da produção de proteína microbiana por meio dos derivados de purinas na urina, em duas metodologias de coleta em novilhos de ...
Luciana Navajas Rennó, Sebastião de Campos Valadares Filho, Rilene Ferreira Diniz Valadares, Mário Fonseca Paulino, Francisco Palma Rennó, Polyana Albino Silva   +5 more
doaj   +1 more source

Nucleophilic Arylation of Halopurines Facilitated by Brønsted Acid in Fluoroalcohol

Molecules, 2019
Various aryl-substituted purine derivatives were synthesized through the direct arylation of halopurines with aromatic compounds, facilitated by the combination of triflic acid and fluoroalcohol.
Naoko Takenaga, Toshitaka Shoji, Takayuki Menjo, Akiko Hirai, Shohei Ueda, Kotaro Kikushima, Tomonori Hanasaki, Toshifumi Dohi   +7 more
doaj   +1 more source

Thermoanalytical study of purine derivatives compounds

Eclética Química, 2018
Thermal methods of analysis are now used in a very large range of scientific investigations. In this work simultaneous thermogravimetry-differential thermal analysis (TG-DTA), X-Ray powder diffractometry and infrared spectroscopy were used to study the ...
G. F. C. Sotelo, G. Bannach, M. Ionashiro   +2 more
doaj   +1 more source

Investigation of 8-Aza-7-Deaza Purine Nucleoside Derivatives

Molecules, 2019
Glycosylation of 6-amino-4-methoxy-1H-pyrazolo[3,4-d]pyrimidine and its iodo- and bromo- analogues with the protected ribofuranose and 2′-deoxyribofuranose under different conditions resulted in the synthesis of N9- and N8-glycosylated purine ...
Hang Ren, Haoyun An, Jingchao Tao
doaj   +1 more source

Search of protein kinase CK2 inhibitors based on purine-2,6-diones derivatives [PDF]

The Ukrainian Biochemical Journal, 2017
This work is aimed to the search of protein kinase CK2 inhibitors among the purine-2,6-dione derivatives by molecular docking and biochemical tests. It was found that the most active compound 8-[2-[(3-methoxyphenyl)methylidene]hydrazine-1-yl]-3-methyl-7-(
M. V. Protopopov, O. V. Ostrynska, D. H. Ivanchenko, S. A. Starosyla, V. G. Bdzhola, M. I. Romanenko, S. M. Yarmoluk   +6 more
doaj   +1 more source

Effect of adenine on the synthesis of purine derivatives in wheat seedlings

Acta Societatis Botanicorum Poloniae, 2015
The effect of adenine and other purine derivatives on the "de novo" purine synthesis was investigated in young wheat schoots. Adenine, adenosine and AMP inhibited strongly this biosynthesis, whereas hypoxanthine had no effect.
Hanna Rybacka
doaj   +1 more source