Showing papers in "Colloids and Surfaces in 2011"

TL;DR: The results showed that the CNFs had a strong interaction with PAM through hydrogen and covalent bondings, and acted as a multifunctional cross-linker and a reinforcing agent in the hydrogel system.

TL;DR: In this paper, the stability and stability mechanism of synthetic W/O crude oil emulsion stabilized by polymer and surfactant was investigated and it was shown that polymer concentration is the key factor to stabilize the synthetic crude oil.

TL;DR: The results of the core holder flooding tests at simulated reservoir conditions demonstrated that the oil recovery efficiency due to the injection of the cell-free biosurfactant solution was 27.2%, and the bacterium injection reduced the final residual oil saturations to below 3% at optimum conditions.

TL;DR: The culture broth was effective in recovering up to 70% of the residual oil from oil-saturated sand packs which indicates the potential value of the biosurfactant in enhanced oil recovery.

TL;DR: Micelles showed fairly high entrapment efficiency, loading capacity and sustained release profile for aceclofenac (Acl), a model hydrophobe, and Thermodynamic parameters for Acl solubilization in mixed micelles revealed high partition coefficient values and spontaneity of drug solubILization.

TL;DR: A very strong positive correlation is observed between the contact angles of the polymers and the various biological parameters, indicating hydrophilic surfaces prevent bacterial biofilm as well as are compatible to cells when compared to hydrophobic surfaces.

TL;DR: Improved bacteria inhibition performance originated from the synergistic effect of hydrophobicity and antibacterial property of quaternary ammonium silane, and the antimicrobial efficacy of the fabricated nanoparticles increased with decreasing size of the nanoparticles.

TL;DR: The prepared CLR nanoparticles are more potent against S. aureus with improved MICs and appropriate physicochemical properties that may be useful for other susceptible microorganisms and could be an appropriate candidate for intravenous, ocular and oral and topical preparations.

TL;DR: In this paper, the transdermal delivery efficacy and skin retention of curcumin were evaluated using neonate pig skin mounted on a Franz diffusion cell, and the results indicate that the limonene micro-emulsion system is a promising tool for the percutaneous delivery of Curcumin.

TL;DR: In this article, solid lipid nanoparticles (SLNs) and nanostructured lipid carriers (NLCs) were fabricated for formulating nevirapine (NVP).

TL;DR: In this article, a 3D scaffold for bone tissue engineering was developed using carbon nanotube (c-MWCNT) nanocomposites using solvent casting technique.

TL;DR: In this article, a simple and efficient electrochemical technique, cyclic voltammogram (CV), was used to quantitatively measure the electron transfer capability of anodic biofilms enriched with acetate and glucose in single-chamber microbial fuel cells (MFCs).

TL;DR: A bio-inspired coating of synthetic biodegradable poly(l-lactide-co-ɛ-caprolactone) (PLCL) films by using polydopamine for tunable cell behaviors such as adhesion and proliferation was presented in this paper.

TL;DR: In this paper, polyethyleneimine (PEI)-capped silver nanoparticles were synthesized in the presence of sodium borohydride (NaBH) and PEI at room temperature.

TL;DR: In this paper, an in situ formed hydrogel based on a water-soluble derivative of chitosan, hydroxypropyl chitosaan (HPCTS), and sodium alginate dialdehyde (SAD) was described for corneal regenerative medicine.

TL;DR: In this article, diltiazem hydrochloride (DTZ) was encapsulated in the microspheres, following Eudragit S-100 coating by solvent evaporation technique, exploiting the advantages of microbiological properties of chitosan and pH dependent solubility of S100.

TL;DR: In this article, the plasmon resonance (420nm) of the silver nanoparticles in solution was shifted slightly to longer wavelength (443nm) when they were coated with BSA.

TL;DR: In this article, the authors developed and characterized chitosan mucoadhesive microspheres for nasal delivery, which were prepared by emulsification-crosslinking method and evaluated for morphology, particle size, swelling index, in vitro mu-coadhesion and delivery properties from Miat® nasal insufflator.

TL;DR: In this paper, the phase diagram of a new AOT/Triton X-100/H₂O/[Bmim][PF₆] pseudo ternary system is presented.

TL;DR: It is demonstrated that surface nanotopography influences fibroblasts responses on platinum, which may be used to reduce cellular adhesion on platinum implant surfaces such as implantable neural electrodes.

TL;DR: In this paper, the authors evaluated four emulsion-based processing strategies for polymeric nanoparticle synthesis to explicate the mechanisms of nanoparticle formation and the influence on achieving sustained-release of two anti-tuberculosis drugs, isoniazid and rifampicin.

TL;DR: The empirical model developed through RSM in terms of effective operational factors was found to be adequate to describe the biosurfactant production and was characterized as lipopeptide derivative.

TL;DR: The results showed that both heparinized silk fibroin and the composite material exhibited better hemocompatibility in comparison with single silk fibrosan or chitosan and suggested that the composite antibacterial property with respect to S. aureus was significantly enhanced.

TL;DR: A new nanocomposite polymer based on polyhedral oligomeric silsesquioxanes (POSS) and poly(carbonate-urea)urethane (PCU), which is an antithrombogenic and a non-biodegradable polymer with in situ endothelialization properties is developed.

TL;DR: Surprisingly, the smallest nanoparticles obtained at the highest biomass:Pd ratio showed no reactivity towards the test reactions, and Sulphur-free biomaterials should be explored as more suitable scaffolds for Pd(0) nanoparticle formation.

TL;DR: In this article, a degradable poly(ɛ-caprolactone) shell and Mygliol 812® oil in the core were coated with poly(MeOEGMA) brush layers with a well-controlled thickness at the nanometer scale up to 350nm using surface initiated atom transfer radical polymerization in water or phosphate buffered saline.

TL;DR: In this article, soap-free emulsion polymerization was applied to poly(St/DVB/GMA) nanospheres and the surfaces of the PNs were further functionalized by the thiol-epoxy "click-chemistry" of surface pendant epoxy groups with functional thiols.

TL;DR: The potential of BRIJ-based precursor formulations for sustained naltrexone release is suggested, and both precursor formulations were significantly less cytotoxic than sodium lauryl sulfate at the same concentration.

TL;DR: In this article, a new formulation for vaginal application to improve the pharmacological effect of benzydamine, displaying both anti-inflammatory and antiseptic activities, was realized by using the mucoadhesive polymers HPMC and/or Carbopol®, then compressed.

TL;DR: In this article, the desorption of individual chitosan polymer chains from substrates with varying chemical composition was studied using atomic force microscopy and force spectroscopy.