Results 101 to 110 of about 682,972 (294)
Continuous preparative thin-layer chromatography [PDF]
, 1967 A short survey of preparative chromatographic methods is given. An apparatus for general use in continuous preparative thin-layer chromatography is described, and its performance compared with some related preparative ...
Visser, K.
core +2 more sources
Light Switchable Ionic Conductivity of Arylazopyrazole Modified Polysiloxanes
Advanced Materials Technologies, EarlyView.We present a polysiloxane functionalized with a novel arylazopyrazole dye that undergoes reversible photoisomerization. Upon lithium bis(trifluoromethanesulfonyl)imide addition and UV irradiation, the polymer exhibits a shift in tan(d) toward higher frequencies and enhanced ionic conductivity.
Malte S. Beccard +7 more
wiley +1 more source
Grasas y Aceites, 1995 This paper is a review in which difficulties for the determination of the fatty acid stereospecific positions in the triacyl-sn-glycerol molecules of natural fats are discussed.
V. Ruiz Gutiérrez, L. J. R. Barrón
doaj +1 more source
Advanced Materials Technologies, EarlyView.This study presents a new biodegradable coating for titanium implants using a natural antimicrobial peptide, caerin 1.9. Applied via solvent casting, the coating offers sustained antibacterial protection and promotes healing. Tested on 3D‐printed porous titanium scaffolds, it effectively prevented infection—including against resistant bacteria—while ...
Hejie Li +7 more
wiley +1 more source
Isolation and Identification of Fenolic Acid in Katu Leaves (Sauropus Androgynus (L.) Merr. )
Makara Journal of Health Research, 2010 To improve traditional drugs in changing to fitofarmaka studies should be conducted on the chemical content of plants used as drugs. In this study, fenolic acid compounds in katu leaves, which are used for traditional medicine, were isolated and ...
Sri Harsodjo Wijono Soewandi
doaj +1 more source
The degradation of L-lysine in guinea pig liver homogenate: formation of alpha-aminoadipic acid [PDF]
, 1948 A summary of the little that is known of the metabolism of lysine in animals is as follows: it is indispensable in the diet, its α-amino group does not participate in reversible transamination reaction in vivo (2), neither the L nor D form is attacked by
Borsook, Henry +4 more
core +1 more source
Degradation Mechanisms in PEM Water Electrolysis: Diagnosis and Impact
Advanced Materials Technologies, EarlyView.This review provides an analysis of degradation mechanisms in proton electrolyte membrane water electrolyzers (PEMWE), focusing on all key components. It discusses diagnostic and measurement techniques for evaluating degradation, less‐studied mechanisms, and an expert survey.
Annik Bernhardt +11 more
wiley +1 more source
Oil & Gas Science and Technology, 2006 L'utilisation de la spectrofluorimétrie comme méthode d'analyse des hydrocarbures polynucléaires a été envisagée sur une fraction polyaromatique d'extraits de vase marine.
Castex H.
doaj +1 more source
Endocytic Control of Cell‐Autonomous and Non‐Cell‐Autonomous Functions of p53
Advanced Science, EarlyView.NUMB Ex3‐containing isoforms localize to the plasma membrane, where they recruit p53 through SNX9 and direct it to multivesicular bodies and exosomes. Exported p53 is taken up by neighboring cells and activates nuclear programs, revealing an intercellular, exosome‐based pathway that might help establish a tumor‐suppressive microenvironment.
Roberta Cacciatore +20 more
wiley +1 more source
Source apportionment and transport of pollutants within the South African paper recycling chain
South African Journal of ScienceRecycled paper is a valuable commodity that forms an intrinsic part of promoting sustainable resource utilisation. In this study, we aimed to investigate the possible sources and transport of semi-volatile organic pollutants in paper grades used in the ...
Nondumiso N. Mofokeng +2 more
doaj +1 more source