Physical and antimicrobial properties of neutral nanoemulsions self-assembled from alkaline thyme oil and sodium caseinate mixtures

2020 ◽  
Vol 148 ◽  
pp. 1046-1052 ◽  
Author(s):  
Yue Zhang ◽  
Qixin Zhong
Keyword(s):  
Antimicrobial Properties ◽  
Sodium Caseinate ◽  
Thyme Oil ◽  
Self Assembled

scholarly journals Precise nanofiltration in a fouling-resistant self-assembled membrane with water-continuous transport pathways

2019 ◽  
Vol 5 (8) ◽  
pp. eaav9308 ◽  
Author(s):  
Xunda Feng ◽  
Qaboos Imran ◽  
Yizhou Zhang ◽  
Lucas Sixdenier ◽  
Xinglin Lu ◽  
...  
Keyword(s):  
Continuous Medium ◽  
Antimicrobial Properties ◽  
High Fidelity ◽  
Size Selectivity ◽  
Transport Pathways ◽  
Selective Transport ◽  
Novel Approach ◽  
Nanostructured Polymer ◽  
Self Assembled ◽  
Potential Use

Self-assembled materials are attractive for next-generation membranes. However, the need to align self-assembled nanostructures (e.g. cylinders, lamellae) and the narrow stability windows for ordered bicontinuous systems present serious challenges. We propose and demonstrate a novel approach that circumvents these challenges by exploiting size-selective transport in the water-continuous medium of a nanostructured polymer templated from a self-assembled lyotropic H1 mesophase. Optimization of the mesophase composition enables high-fidelity retention of the H1 structure on photoinduced cross-linking. The resulting material is a mechanically robust nanostructured polymer possessing internally and externally cross-linked nanofibrils surrounded by a continuous aqueous medium. Fabricated membranes show size selectivity at the 1- to 2-nm length scale and water permeabilities of ~10 liters m−2 hour−1 bar−1 μm. Moreover, the membranes display excellent antimicrobial properties due to the quaternary ammonium groups on the nanofibril surfaces. These results represent a breakthrough for the potential use of polymerized lyotropic mesophase membranes in practical water purification applications.

Physical and antimicrobial properties of thyme oil emulsions stabilized by ovalbumin and gum arabic

2016 ◽  
Vol 212 ◽  
pp. 138-145 ◽  
Author(s):  
Fuge Niu ◽  
Weichun Pan ◽  
Yujie Su ◽  
Yanjun Yang
Keyword(s):  
Antimicrobial Properties ◽  
Gum Arabic ◽  
Thyme Oil ◽  
Oil Emulsions

scholarly journals Impact of Perfluoro and Alkylphosphonic Self-Assembled Monolayers on Tribological and Antimicrobial Properties of Ti-DLC Coatings

Materials ◽  
2019 ◽  
Vol 12 (15) ◽  
pp. 2365 ◽  
Author(s):  
Michal Cichomski ◽  
Milena Prowizor ◽  
Ewelina Borkowska ◽  
Ireneusz Piwoński ◽  
Anna Jędrzejczak ◽  
...  
Keyword(s):  
Friction Coefficient ◽  
Control Sample ◽  
Antimicrobial Properties ◽  
Self Assembled Monolayers ◽  
Diamond Like Carbon ◽  
Dispersive Component ◽  
Load Range ◽  
Dlc Coatings ◽  
Assembled Monolayers ◽  
Self Assembled

The diamond-like carbon (DLC) coatings containing 1.6%, 5.3% and 9.4 at.% of Ti deposited by the radio frequency plasma enhanced chemical vapor deposition (RF PECVD) method on the silicon substrate were modified by n-decylphosphonic acid (DP) and 1H, 1H, 2H and 2H-perfluorodecylphosphonic acid (PFDP). The presence of perfluoro and alkylphosphonic self-assembled monolayers prepared by the liquid phase deposition (LPD) technique was confirmed by Fourier transform infrared spectroscopy (FTIR). It was shown that DP and PFDP monolayers on the surface of titanium incorporated diamond-like carbon (Ti-DLC) coatings had a huge influence on their wettability, friction properties, stability under phosphate- and tris-buffered saline solutions and on antimicrobial activity. It was also found that the dispersive component of surface free energy (SFE) had a significant influence on the value of the friction coefficient and the percentage value of the growth inhibition of bacteria. The dispersive component of SFE caused a reduction in the growth of bacteria and the friction coefficient in mili- and nano-newton load range. Additionally, both self-assembled monolayers prepared on Ti-DLC coatings strongly reduced bacterial activity by up to 95% compared to the control sample.

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