- High Quality Images Ink-jeted on Different Woven Cotton Fabrics Cationized with P(St-BA-VBT) Copolymer Nanospheres. [Journal Article]
- AAACS Appl Mater Interfaces 2019 Jul 19
- The porosity, roughness and thickness of woven fabrics limits inkjet printing quality, which is extremely important for obtaining high-quality inkjet printing images on fabrics. This study reveals th…
The porosity, roughness and thickness of woven fabrics limits inkjet printing quality, which is extremely important for obtaining high-quality inkjet printing images on fabrics. This study reveals the application of Poly[Styrene-Butyl acrylate-(P-vinylbenzyl trimethyl ammonium chloride)] nanospheres prepared via soap-free emulsion polymerization approach as a novel kind of cationization modifier for the inkjet printing of different woven cotton fabrics by pad-cure process. It was found that the nanospheres exhibited the average diameter of 65.5 nm, the Zeta potential of + 57.8 mV and glass transition temperature of 94.7 ℃. The nanospheres deposited on three cotton fabrics through the dip-rolling process, resulting in the increase of Zeta potential, hydrophobicity and thickness of the fabric, and the decrease of porosity and roughness. The high-quality inkjet printing images can be obtained on fabrics with different structures owing to the differences in Zeta potential, hydrophobicity, porosity, roughness and thickness of fabrics. The plain, twill and honeycomb weave fabrics obtained high quality inkjet printing images for portraits, oil paintings and landscape paintings, respectively. The nanospheres could strongly adsorb on the fiber by electrostatic attraction. The reactive dye molecules in the inks could react with the cationized fibers by electrostatic attractive force, resulting in the increase of the color strength, fixation rates and outline sharpness. The nanospheres cationization of different woven fabrics offers a new potential method for obtaining high-quality pattern without significantly affecting the fabric handle.
- Stable-streamlined cavities following the impact of non-superhydrophobic spheres on water. [Journal Article]
- SMSoft Matter 2019 Jul 19
- The formation of a stable-streamlined gas cavity following the impact of a heated Leidenfrost sphere on a liquid surface or a superhydrophobic sphere on water is a recently demonstrated phenomenon. A…
The formation of a stable-streamlined gas cavity following the impact of a heated Leidenfrost sphere on a liquid surface or a superhydrophobic sphere on water is a recently demonstrated phenomenon. A sphere encapsulated in a teardrop-shaped gas cavity was found to have near-zero hydrodynamic drag due to the self-adjusting streamlined shape and the free-slip boundary condition on the cavity interface. Here we show that such cavities can as well be formed following water impact from a sufficient height of non-superhydrophobic spheres with water contact angles between >30° and 120°. In this case the streamlined cavity is attached just above the sphere's equator, instead of entirely wrapping the sphere. Nevertheless, this sphere with attached cavity formation has near-zero drag and a predetermined free fall velocity in compliance with the Bernoulli law of potential flow. The effect of surfactant addition to the water solution is investigated. The shape and fall velocity of a sphere with streamlined cavity formation were unaffected by the addition of low surface modulus synthetic surfactants, but were destabilised when solutions containing high surface modulus surfactants, such as soaps, were used.
- Utilization of natural detergent potassium laurate for decellularization in lung bioengineering. [Journal Article]
- TETissue Eng Part C Methods 2019 Jul 18
- Perfusion decellularization by detergents is used to harvest native organ scaffolds with delicate three-dimensional structures from the natural extracellular matrix (ECM). However, detergents often d…
Perfusion decellularization by detergents is used to harvest native organ scaffolds with delicate three-dimensional structures from the natural extracellular matrix (ECM). However, detergents often damage ECM proteins, disrupting the reseeding of cells during the bioengineering process. Here, we analysed the ability of the natural soap potassium laurate (PL), generated from a natural fatty acid, to act as a detergent for lung bioengineering. Harvested rat lungs were decellularized by PL or the conventional detergent sodium dodecyl sulphate (SDS). The results indicated that PL could remove cells and DNA. Moreover, PL-decellularized lungs showed obviously improved preservation of architecture, with elastin microfibrils, sulphated glycosaminoglycans, and ECM proteins, compared to that with SDS. Mesenteric implanted PL-decellularized scaffolds demonstrated significantly reduced inflammatory reactions compared to SDS-decellularized scaffolds. In vitro, rat microvascular epithelial cell (RLMVEC) proliferation and survival rates were increased by coculturing with minced PL-decellularized scaffolds but not minced SDS-decellularized scaffolds. After recellularization using RLMVECs and adipogenic stem/stromal cells (ASCs), recellularized cells uniformly distributed in PL-decellularized scaffolds but not in SDS-decellularized scaffolds. After the transplantation of bioengineered lungs, lung congestion was obviously reduced with PL-decellularized bioengineered tissues. Overall, our findings suggest that PL is very well-suited for organ bioengineering.
- Mechanical washing of pet food bowls is effective for Microsporum canis decontamination. [Journal Article]
- VDVet Dermatol 2019 Jul 17
- CONCLUSIONS: Mechanical washing alone can decontaminate pet food bowls exposed to naturally infective material. Dishes should be soaked in hot sudsy water to loosen organic debris, scrubbed until visibly clean and then rinsed. Owners should wear dishwashing gloves for personal protection.
- Association of mother's handwashing practices and pediatric diarrhea: evidence from a multi-country study on community oriented interventions. [Journal Article]
- JPJ Prev Med Hyg 2019; 60(2):E93-E102
- CONCLUSIONS: Access to safe drinking water was reportedly higher for communities in Guatemala and Zambia (> 80%), than those in Cambodia and Kenya (< 63%), with significantly higher levels in intervention sites for Guatemala and Kenya. Improved sanitation was low (< 10%), for Kenya and Zambia, compared to Cambodia and Guatemala (> 40%); intervention sites reporting significantly higher levels, except for Zambia. Hand washing index; hand washing before food preparation, after defecation, attending to a child after defecation, and before feeding children was significantly higher for intervention sites in Cambodia, Guatemala and Kenya (Cambodia, 2.4 vs 2.2, p < 0.001, Guatemala, 3.0 vs 2.5, p < 0.001, Kenya, 2.6 vs 2.3, p < 0.001). Factors significantly associated with lower odds of diarrhea were; mother's marital status, higher educational status, one or more handwashing practices, wealthier quintiles, older (> 24 m), and female children. The findings suggest that caretaker handwashing with soap or ash has a protective effect on prevalence of diarrhea in children.
- Molecular Semiconductor Surfactants with Fullerenol Head and Colored Tails for Photoconversion of Carbon Dioxide. [Journal Article]
- ACAngew Chem Int Ed Engl 2019 Jul 16
- The leaf is paramount for a material converting waste (CO2) to value with maximum sustainability. As the most important constituent, it contains the coupled photosystems II and I imbedded in the cell…
The leaf is paramount for a material converting waste (CO2) to value with maximum sustainability. As the most important constituent, it contains the coupled photosystems II and I imbedded in the cellular membrane of chloroplasts. Can key functions of the leaf be packed in soap? We present next generation surfactants, which self-assemble to bilayer vesicles (similar to the cellular membrane), are able to absorb photons of two different VIS-wavelengths and exchange excited charge carriers (similar to the photosystems), followed by conversion of CO2 (in analogy to the leaf). The amphiphiles contain five dye molecules as the hydrophobic entity attached exclusively to one hemisphere of a polyhydroxylated fullerene (Janus-type). The manuscript reports surfactant, optical, electronic and catalytic properties. Photons adsorbed by the dyes become transferred to the fullerenol head, where they are able react with different species like with CO2 to formic acid.
- Dish soap for complete tick detachment. [Journal Article]
- JAJ Am Acad Dermatol 2019 Jun 13
- Hospital environment as a reservoir for cross transmission: cleaning and disinfection procedures. [Journal Article]
- AIAnn Ig 2019 Sep-Oct; 31(5):436-448
- CONCLUSIONS: Research agenda should include the improvement of well-known effective preventive procedures and the development of new bundles devoted to high-risk procedures and specific microorganisms.
- HLA-DQ and RBFOX1 as susceptibility genes for an outbreak of hydrolyzed wheat allergy. [Journal Article]
- JAJ Allergy Clin Immunol 2019 Jul 10
- CONCLUSIONS: Our data provide the first demonstration of genetic risk for HWP allergy and show that this genetic risk is mainly represented by multiple combinations of HLA variants.
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- Facultative and anaerobic consortia of haloalkaliphilic ureolytic microorganisms capable of precipitating calcium carbonate. [Journal Article]
- JAJ Appl Microbiol 2019 Jul 13
- CONCLUSIONS: Ureolysis rates from both facultatively and anaerobically enriched haloalkaliphiles were either not statistically significantly different to, or statistically significantly higher than, the S. pasteurii (strain ATCC 11859) rates. Work here concludes that extreme environments can harbor highly ureolytic active bacteria with potential advantages for large scale applications, such as environments devoid of oxygen.The bacterial consortia and isolates obtained add to the possible suite of organisms available for MICP implementation, therefore potentially improving the economics and efficiency of commercial biomineralization. This article is protected by copyright. All rights reserved.