Autor: Dass, K. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Screening of different leaf extracts of Cassia fistula Linn for investigation of hypolipidemic activity in two different rat models
Autorzy:: Sutar, G.V.
Dass, K.
Einstein, J.W.
Powiązania:: https://bibliotekanauki.pl/articles/11465.pdf
Data publikacji:: 2015
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Opis:: The present investigation was carried out to evaluate the hypolipidemic activity of methanolic and aqueous leaf extracts of Cassia fistula (CF) Linn (Family: Fabaceae) on atherogenic diet (2% cholesterol, 1% Choline Chloride and 2% Lard) induced Male Sprauge-Dawley rats for the period of 21 days. The rats receiving the treatment with leaf methanol and aqueous extract of CF showed significant (P < 0.001) reduction in total cholesterol (TC), triglycerides (TG), High density lipoprotein (HDL), lipid peroxidation (LPO) and other parameters at dose dependent manner but the effect was less than the standard drug Atorvastatin. The results revealed the effectiveness of CF plant against hyperlipidemic activity.
Źródło:: International Letters of Natural Sciences; 2015, 03
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Nanoporous surface treatment of aluminium by anodisation in oxalic acid
Autorzy:: Dass, G.
Kushwaha, M. K.
Powiązania:: https://bibliotekanauki.pl/articles/367229.pdf
Data publikacji:: 2019
Wydawca:: Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:: aluminium
anodisation
SEM
electrical parameters
AAO
oxalic acid
anodowanie
skaningowa mikroskopia elektronowa
parametry elektryczne
kwas szczawiowy
Opis:: Purpose: Well-ordered nanoporous anodic surface on aluminium substrate was obtained by anodisation method in 0.3 M of oxalic acid as an electrolyte. The objective of this perusal is to describe a system for the magnifying diameter of pores and resistance of demolition of the oxide layer at various voltages. The effect of voltage and time of anodisation process in which obtaining the required structure in AAO film. Design/methodology/approach: The experiments have been performed on a setup for anodisation considering variables parameters. In this study, AAO Templates were prepared in oxalic acid of 0.3 M concentration under the potential range of anodisation 30-40 V at relatively temperatures range from 20-30°C of an electrolyte. Anodic voltage, current density and temperature of electrolyte were adopted as electrical parameters during anodisation. Before anodisation starts two crucial pre-treatment i.e. annealing and electropolishing are finished. Findings: The diameter of pores and pitch of pores are well-proportional to anodisation voltage and process time. The pore diameters were 85 nm, 138 nm, 184 nm, 248 nm with having 9, 16, 27, 37 porosity % respectively. The thickness of AAO film in all cases has been found to be maximum or constant after one hour in second step anodisation. The anodisation parameters like voltage, the time duration of the anodisation process and temperature are very essential features which influencing the fabrication of an AAO film. Research limitations/implications: The anodisation process is very easy to perform but very complex to understand as there are many parameters which may affect it. Practical implications: After that, the second step anodisation for the next half hour, there will be no change in the thickness of AAO film but after that dissolution rate starts over the formation rate and finally thickness will be decreasing. Originality/value: Therein is numerous macropores in the membrane with the size of pores variation from 163 to 248 nm. The diameter of pores, thickness, and pore density of AAO film was determined through Scanning Electron Microscopy (SEM), which exhibited that homogeneous honeycomb-like structure has appeared on the entire surface where anodisation performed precisely.
Źródło:: Journal of Achievements in Materials and Manufacturing Engineering; 2019, 93, 1-2; 20-25
1734-8412
Pojawia się w:: Journal of Achievements in Materials and Manufacturing Engineering
Dostawca treści:: Biblioteka Nauki

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