Results 61 to 70 of about 6,618 (173)

Chromatography of sphingolipids of human brain*

Journal of Lipid Research, 1961
Sphingolipids of the brain were prepared by solvent extraction of the tissue or from mixed brain extracts subjected to mild alkaline hydrolysis. Their components were separated on silicic-acid columns.
H.P. Schwarz, L. Dreisbach, M. Barrionuevo, A. Kleschick, I. Kostyk   +4 more
doaj   +1 more source

[Determination of boric acid and silicic acid in mineral water by nonsuppressed ion chromatography]. [PDF]

Se Pu, 2023
Yang Z, Zhang F, Han C, Zheng H.
europepmc   +1 more source

Differences Between Sodium Metasilicate and Silicic Acid as Silica Source for Zeolite Y Nano particles Synthesis by Sol- Gel Method

Iraqi Journal of Chemical and Petroleum Engineering, 2009
Zeolite Y nanoparticles were synthesized by sol - gel method. Dffirent samples using two silica sources were prepared. Sodium metasilicate (Na2SiO3) (48% silica) and silicic acid silica (H2SiO3) (75% silica) were employed as silica source and aluminum ...
Adil A. Al-Hemiri, Yousif Jawad/
doaj  

Thin-layer chromatographic separation of sulfated and nonsulfated lithocholic acids and their glycine and taurine conjugates

Journal of Lipid Research, 1975
A method for superior thin-layer chromatographic separation of lithocholic acid and its N-glycine and N-taurine conjugates, as well as their respective 3α-sulfates, is described.
O.W. Cass, A.E. Cowen, A.F. Hofmann, S.B. Coffin   +3 more
doaj   +1 more source

Improving the Durability of Lime Finishing Mortars by Modifying Them with Silicic Acid Sol. [PDF]

Materials (Basel), 2022
Loganina V, Davydova O, Fediuk R, Amran M, Klyuev S, Klyuev A, Sabitov L, Nabiullina K.   +7 more
europepmc   +1 more source

Lithiated porous silicon nanowires stimulate periodontal regeneration

Nature Communications
Periodontal disease is a significant burden for oral health, causing progressive and irreversible damage to the support structure of the tooth. This complex structure, the periodontium, is composed of interconnected soft and mineralised tissues, posing a
Martti Kaasalainen, Ran Zhang, Priya Vashisth, Anahid Ahmadi Birjandi, Mark S’Ari, Davide Alessandro Martella, Mark Isaacs, Ermei Mäkilä, Cong Wang, Evelin Moldenhauer, Paul Clarke, Alessandra Pinna, Xuechen Zhang, Salman A. Mustfa, Valeria Caprettini, Alexander P. Morrell, Eileen Gentleman, Delia S. Brauer, Owen Addison, Xuehui Zhang, Mads Bergholt, Khuloud Al-Jamal, Ana Angelova Volponi, Jarno Salonen, Nicole Hondow, Paul Sharpe, Ciro Chiappini   +26 more
doaj   +1 more source

Differential expression of the multiplicated silicon transporter genes at different stages of morphogenesis of daughter frustule of the freshwater diatom Ulnaria acus

Acta Biologica Sibirica
Diatoms are known for their unique ability to form species-specific silicon exoskeletons (shells) richly decorated with various ornaments, outgrowths, and holes.
Artem M. Marchenkov, Yulia R. Zakharova, Darya P. Petrova   +2 more
doaj   +1 more source

Comparing amorphous silica, short-range-ordered silicates and silicic acid species by FTIR. [PDF]

Sci Rep, 2022
Ellerbrock R, Stein M, Schaller J.
europepmc   +1 more source

High-pressure and temperature investigation of silicic acid ± water with implications for the ice polymorphism, lunar moganite and diamonds growth media

Progress in Earth and Planetary Science
The polymorphism of ice has been widely investigated over the last decades, and the results were found to be applicable over a wide range of terrestrial and extraterrestrial environments with recent findings also among the mineral inclusions entrapped in
G. Marras, Y. Lu, V. Stopponi, R. Tao, Y. Lin, Vincenzo Stagno   +5 more
doaj   +1 more source

The Impact of Arginine Side Chains on the Mechanism of Polycondensation of Silicic Acid in Bioinspired Mineralization

Inorganics
The polycondensation of silica from soluble silicic acid is at the basis of several chemical processes. The usual industrial route requires harsh pH conditions and high concentrations of the precursor molecules, not to mention a thermal treatment for ...
Jose Lanuza, Enrico Ravera
doaj   +1 more source