Microorganisms (17 bacteria and 3 fungi) isolated from crude oil-contaminated soils were evaluated for degradation of five polyaromatic hydrocarbons (PAHs), both in the absence (-T80) presence surfactant Tween-80 (+T80) at a 10 mg L?1 concentration each PAH. Results heat map Tukey HSD revealed that highest PAH was observed by Kocuria rosea +T80 treatment. Degradation (%) individual (-T80, +T80)...

Ondansetron HCl delivery through oral route suffers due to its low bioavailability due to first-pass metabolism. Therefore, the microemulsion-based transdermal delivery may be a better substitute for it. The pseudoternary phase diagrams were constructed to determine compositions of microemulsions, and ondansetron HCl microemulsions for transdermal delivery were developed using isopropyl myrista...

The fraction in which direct contact occurs between micellar-phase phenanthrene and the bacterial cell surface was estimated by measuring the toxicity of nonionic surfactant (Tween 80 and Triton X-100) solutions to the phenanthrene-degrading bacterium, Pseudomonas putida P2. Cell viability of completely dissolved phenanthrene decreased by 30% at concentrations greater than 0.3 mg L(-1), which i...

This paper describes the effect of the addition of Tween-80 in dilute sulfuric acid pretreatment on enzymatic hydrolysis of waste office paper. Lignocellulosic material was pretreated with dilute sulfuric acid (1% V/V) at 50 oC for 3 hours, with or without addition of Tween-80 (2.5 g/L). The pretreatment was able to remove hemicellulose and lignin from waste office paper, but the surfactant did...

The nanotribological responses of a series of nonionic polyoxyethylene surfactants (Tween 20, Tween 40, Tween 60, and Tween 80) were investigated after they were adsorbed from aqueous solution onto atomically smooth hydrophobic substrates. The hydrophobic surfaces were composed of a condensed monolayer of octadecyltriethoxysilane (OTE; contact angle theta>110 degrees ). The nanorheological meas...

When Streptococcus salivarius was grown in batch culture in the presence of various Tween detergents, the fatty acid moiety of the detergent was incorporated into the lipids of its membrane. Tween 80 (containing primarily oleic acid) markedly stimulated the production of extracellular glucosyltransferase and also increased the degree of unsaturation of the membrane lipid fatty acids. The possib...

There is a vast interest in the scientific community and drug industry to exploit various mucosal routes of delivering drugs, which are poorly absorbed after oral administration. Human rectum remains to be a relatively unexplored route of drug delivery despite its potential as a noninvasive route of drug administration. The presence of dense network of blood vessels has made the rectum an excel...

The use of conventional drugs for the treatment pain and inflammation has largely resulted in various side effects. These challenges have triggered search alternative therapy such as herbal medication that may serve a safe, effective, alternate approach to managing inflammation. Vitex negundo, potential lipophilic molecule, possesses limited solubility permeability. Emulgels are either water-in...

Kencur ( Kaempferia galanga L.) rhizome ethanol extract contains a lipophilic compound of ethyl p-methoxycinnamate. Self-nanoemulsifying drug delivery system (SNEDDS) formulation can increase the solubility in water. The purpose this study was to determine effect surfactant combination on kencur SNEDDS system. formulations were carried out by selecting ratio Tween 80:Span 80 and 80:Chremophor R...

Abstract Oil palm empty fruit bunch (OPEFB), waste produced from the oil mills, has not been intensely utilized while its abundant availability in tropical countries such as Indonesia. It is one of potential lignocellulosic material sources which can be to produce sugar. The subcritical water process known a promising lignocellulose-to-sugar conversion process. This study examined effects tempe...