one of the main components of lung alveoli is surfactant. dppc (dipalmitolphosphatidylcholine) is thepredominant lipid component in lung surfactant that is responsible for lowering surface tension in alveoli in thisarticle. we used a very approximate model with computational method of ab initio to describe the interactionsbetween dppc as important component of lung surfactant and some chemical ...

An experimental investigation of the phosphorescence properties of liquid and vapour acetone is presented with the goal of introducing a novel technique for improved two-phase flow visualization. Commonly applied laser induced fluorescence (LIF) investigations of two-phase flows are challenging, in particular because of the large disparity in fluorescence intensity between the two phases and th...

Since the ancient discovery of the 'sweet odor' in human breath gas, pursuits of the breath analysis-based disease diagnostics have never stopped. Actually, the 'smell' of the breath, as one of three key disease diagnostic techniques, has been used in Eastern-Medicine for more than three thousand years. With advancement of measuring technologies in sensitivity and selectivity, more specific bre...

This work presents a photocatalysis-based method to treat and purify air because of its broad applicability to common, oxidizable air contaminants. The effect of oxygen content, temperature, water vapor, and acetone concentration on the photooxidation of acetone on TiO2 surface was investigated. The photocatalytic decomposition reaction of acetone obeyed the first-order equation. The decomposit...

small pieces, homogenized with two volumes of 50mMTris buffer (pH 7.4) containing 0.25 Msucrose and 1 mMEDTA, and centrifuged at 700g for 10minutes. After removal of the precipitate (nuclear-debris), the supernatant was further centrifuged at 7,000g for 60minutes. To the resulting sediment (lysosomal-mitochondrial pellet) was added 200ml of cold acetone, and the suspension was stirred for an ho...

This paper is the first phytochemical and ABTS cation radical decolorisation activity, cupric reducing antioxidant capacity, anticholinesterase and DNA damage protection effect of endemic Verbascum pinetorum (Boiss.) O. Kuntze. Phenolic profile of V. pinetorum were qualified and quantified by UHPLC-ESI-MS/MS analysis. Malic acid (47250.61±2504.28 µg/g) and luteolin (7651.96±527.98 µg/g) were fo...

The aim of this study was the use and revalorization two persimmon by-products A B generated in juice production process. by-product resulting from a pectinase enzymatic treatment peels pulp to optimize extraction especially suitable for recovery valuable bioactive carotenoids. solvents solvent combinations used were: ethanol, acetone, ethanol/acetone (50:50 v/v) ethanol/acetone/hexane (25:25:5...

the mucopolysaccharidoses are a clinically and genetically heterogenous group of lysosomal storage diseases caused by defects in different enzymes for mucopolysaccharid degradation (glycosaminoglycans). except for mucopolysaccharide storage disease type ii (hunter disease), all are transmitted through an autosomal recessive mode of inheritanceinheritance. clinical feature of these metabolic dis...

Although the literature contains studies published more than 30 years ago showing that acetone is not metabolically inert, it is common to find biochemistry textbooks and current research publications asserting that acetone is a 'dead-end' metabolite. In fact, acetone derived from the non-enzymatic breakdown of acetoacetate in ketotic individuals or from the oxidation of ingested isopropanol ca...

We estimated the expression of proliferating cell nuclear antigen (PCNA) in HeLa S3 cells by flow cytometry with monoclonal antibody (MAb) PC10. HeLa cells were fued with six Merent fuation procedures: 15-mk and 30-min acetone, 15-mb acetone followed by 15-mb methanol (acetonelmethanol), 30-mb methanol, 15-min methanol followed by 15-mh acetone (methanollacetone), and a mixture of acetone and m...