Chitosan, a natural biodegradable polymer is recommended for development of nanoparticles intended for chronic infection such as tuberculosis. Formulation and processing variables play a critical role in the formation of nanoparticles prepared with chitosan. The present study investigated the influence of polymer (chitosan) molecular weight, stabilizing agent (tween 80) concentration and stirri...

Tomat merupakan buah yang mengandung kadar air cukup tinggi dapat menyebabkan proses pembusukan. Menjadikan tomat ke bentuk bubuk melalui pengeringan adalah salah satu cara untuk mengawetkan tomat. Penelitian ini bertujuan mengetahui karakteristik serta pengaruh foaming agent tween 80 pada dengan variasi laju udara fan, waktu dan temperatur. Metode digunakan metode tray dryer. menggunakan varia...

Bu çalışmada, omega-3 yağ asitlerince zengin balık yağı (%5) ve Tween 80 (T80), Quillaja Saponin (QS), Gam Arabik (GA) sürfaktanları (%1) kullanılarak mikroakışkanlaştırıcı yardımı ile su içinde (Y/S) nanoemülsiyonları hazırlanmıştır. Nanoemülsiyonların fiziksel stabiliteleri; pH (4-7), sıcaklık (40-80oC) iyonik şiddet (0-500 mM NaCl) etkisi belirlenmiştir. partikül boyutlarının 125±0.40 542±0....

Pruning of Juglans mandshurica produces many branches, which are potentially a rich source juglone although they usually discarded as waste. Herein, we describe water-in-oil microemulsion-based microwave-assisted extraction (MBMAE) method to isolate the found in waste branches from J. mandshurica. In our experiment, branch powder was added MBMAE system. Using optimized microemulsion system comp...

The surface properties of cationic liposomes and lipoplexes largely determine the cellular association and gene transfection efficiency. In this study, we measured the surface properties, such as zeta potentials, surface pH and hydration levels of MHAPC- and OH-Chol-lipoplexes and their cellular association, without and with the modification of biosurfactant mannosylerythritol lipid-A (MEL-A) o...

Docetaxel is a potent anticancer drug, but development of an oral formulation has been hindered mainly due to its poor oral bioavailability. In this study, solid lipid nanoparticles (SLNs) surface-modified by Tween 80 or D-alpha-tocopheryl poly(ethylene glycol 1000) succinate (TPGS 1000) were prepared and evaluated in terms of their feasibility as oral delivery systems for docetaxel. Tween 80-e...

Attempts were made to solubilize thymol in Tween 80 micelle to study the solubilization mechanism of thymol and the effect of solubilization on its antioxidant activity. The maximum solubilized concentration of thymol in a 2.0% (w/v) Tween 80 micelle solution is 0.2 wt%. There was no significant difference in Z-average diameter between the empty micelles and thymol solubilized micelles. 1H NMR ...

It has been difficult to cultivate human tubercle bacilli in agar medium unless bovine serum, or a fraction therefrom, was added aseptically, since the factor present in the serum is thermolabile (Dubos and Middlebrook, 1947). On the other hand, egg yolk or whole egg media may be used, but the difficulties in preparing the media render the methods uncertain and cumbersome. Hence, a thermostable...

Optical devices for measuring protoporphryin IX (PpIX) fluorescence in tissue are routinely validated by measurements in optical phantoms. Yet there exists limited data to form a consensus on the recipe for phantoms that both mimic the optical properties found in tissue and yield a reliable and stable relationship between PpIX concentration and the fluorescence remission intensity. This study c...

In this study, the effects of the addition of Tween 80 and acetone on secretion, structure and antioxidant activities of Lentinus tigrinus exopolysaccharides (EPS) were investigated. It was found that Tween 80 and acetone displayed a stimulatory effect on EPS secretion. The EPS obtained by the addition of Tween 80 (EPS-T), acetone (EPS-A) and control (EPS--C) were purified by Sepharose CL-6B ge...