The influence of emulsion parameters on physical stability and rheological properties of Pickering emulsions stabilized by hordein nanoparticles

In this study, the effect of pH (3–8), ionic strength (I, 0.01–1 M), protein particle concentration (C, 0.5%–2%), and dispersed phase volume fraction (Φ, 0.25–0.8) on the efficacy of hordein-based colloidal nanoparticles in the stabilization of Pickering structures was investigated. Colloidal particles were synthesized via anti-solvent method. Depending on pH and I, the average size and zeta-potential of hordein particles ranged from 425 to around 4000 nm, and +27.5 to −15.63 mV, respectively. The intense aggregation of particles at pH close to isoelectric point and also at high I led to poor formation and stability of Pickering emulsions. The overrun value was influenced by various emulsion parameters. At pH 3, triphasic (with the overrun value of 75%) and high internal phase (HIP) emulsions with an average droplet size of 15.6–86.7 μm were formed at Φ 0.25 and 0.8, respectively. At Φ 0.5 and 0.8, an elastic gel-like behavior (i.e., storage modulus (G′) > loss modulus (G″)) was observed over the applied frequency range. At Φ 0.25, a predominant viscous character (G">G′) was observed at low frequencies; while, at higher frequencies, G′ exceeded G″ due to the foam collapse. The morphology was studied by optical microscopy and confocal laser scanning microscopy (CLSM). Monitoring the physical stability using static multiple light scattering (MLS) revealed three dest...
Source: Food Hydrocolloids - Category: Food Science Source Type: research

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This study utilised 5-FU-treatment in a model of colitis-associated CRC to develop a pre-clinical setting of intestinal mucositis coincident with manifestation of CRC.Materials/methods: On day 0, female C57BL/6 mice (n = 10/group); (1) saline control, (2) AOM/DSS control, or (3) AOM/DSS + 5-FU were injected with saline or AOM (i.p; 7.4 mg/kg). Groups 2 and 3 underwent cycles of seven days 2%w/v DSS followed by 14 days plain water. After three cycles, 5-FU was administered weekly (i.p; 75 mg/kg) to group 3 for five weeks. Clinical indicators were measured daily and colonoscopy performed at...
Source: Scandinavian Journal of Gastroenterology - Category: Gastroenterology Tags: Scand J Gastroenterol Source Type: research
Conclusion: Our study demonstrated the urgent need for improved liver screening, health education regarding risk behavior and improved awareness campaigns on liver disease. Interest of the general population may be presumed as more than 200,000 people accessed our test of their own accord. PMID: 31822163 [PubMed - as supplied by publisher]
Source: Scandinavian Journal of Gastroenterology - Category: Gastroenterology Tags: Scand J Gastroenterol Source Type: research
This study was designed to investigate characteristics of the disease to predict recurrence.Methods: We retrospectively analyzed 617 patients that experienced a first AP attack between January 2009 and December 2014. Based on reviews of clinical and follow-up data, we attempted to identify risk factors of recurrence using Cox regression analysis.Results: During a median follow-up of 3.2 years (range 3-72 months), 100(16.2%) of the 617 study subjects experienced one or more episodes of recurrent acute pancreatitis (RAP). Of these 100 patients, 75(75%) experienced one relapse, 12(12%) two relapses, and 13(13%) ...
Source: Scandinavian Journal of Gastroenterology - Category: Gastroenterology Tags: Scand J Gastroenterol Source Type: research
Publication date: Available online 11 December 2019Source: Progress in Natural Science: Materials InternationalAuthor(s): Yanan Yu, Miaomiao Zhai, Jingbo HuAbstractBimetallic Ni and Ti nanoparticle-modified indium tin oxide electrode (Ni–Ti NPs/ITO) were prepared by a two-step ion implantation method, and their electrocatalytic activity toward the oxidation of ethanol and glycol was evaluated. The ion-implantation method is simple, low-cost and environmental friendly without the use of any binder. The Ni–Ti NPs/ITO electrode were characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM)...
Source: Progress in Natural Science: Materials International - Category: Materials Science Source Type: research
Publication date: March 2020Source: Materials Today Communications, Volume 22Author(s): Seyed Mohammad Reza Paran, Ghasem Naderi, Farhad Javadi, Rasoul Shemshadi, Mohammad Reza SaebAbstractNevertheless, hybrid of two platy nano-size particles and theoretical evaluation of the mechanical properties of the resulting elastomer nanocomposite with superior properties was not addressed. Hybrid rubber nanocomposites based on ethylene propylene diene monomer (EPDM), acrylonitrile butadiene rubber (NBR), varying amounts of graphene nanoplatelets (GnPs) and graphene oxide nanoplatelets (GOnPs) were prepared by using a two-roll mill ...
Source: Materials Today Communications - Category: Materials Science Source Type: research
Publication date: Available online 11 December 2019Source: CarbonAuthor(s): Pei-ling Li, Yu-hua Wang, Meng Shang, Lan-fu Wu, Xiang-Xiang YuAbstractGraphene oxide-ZnS (GOZS) nanocomposites were successfully prepared by solvothermal method. The microstructure, morphology and nonlinear optical properties of the obtained GOZS nanocomposites were characterized by XRD, Raman, SEM, TEM, Mapping, UV–vis and open aperture Z-scan test. The results show that ZnS particles with a diameter of about 20 nm are evenly distributed on the GO surface. And GOZS exhibited enhanced nonlinear absorption and optical limiting (OL) action u...
Source: Carbon - Category: Materials Science Source Type: research
CONCLUSIONS: Fresh frozen homologous bone seems to have a good healing pattern and to be a successful and steady grafting material for the treatment of maxillary ridge atrophy. It might be considered a valid alternative to autologous bone in sinus floor augmentation procedures. PMID: 31822046 [PubMed - in process]
Source: Minerva Stomatologica - Category: Dentistry Tags: Minerva Stomatol Source Type: research
In this study, erbium-doped barium tungstate was synthesized by the co-precipitation method with three different concentrations: Ba(1-x)ErxWO4 (where x = 0.00, 0.01, and 0.02). The materials were characterized by X-ray diffraction (XRD), Raman and Fourier-transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS). Subsequently, the samples were subjected to temperature variations in the range of 123–293 K, and their Raman spectra were collected to observe the structural changes induced by Er doping. We observed that at low temperatures, t...
Source: Journal of Molecular Structure - Category: Molecular Biology Source Type: research
Publication date: 15 March 2020Source: Journal of Alloys and Compounds, Volume 817Author(s): Yanting Tian, Xiang Guo, Pingping Wu, Xu Zhang, Zhongquan NieAbstractNi-based anode supports with straight open pores were well prepared using self-organization process. The scanning electron microscopy (SEM) results of YSZ ceramic skeletons showed that honeycomb-like structures with highly ordered straight pores were obtained. The regulation of solid loading and CaCl2 concentration on the morphology of YSZ skeletons were discussed. The YSZ skeleton with solid loading of 10 wt% and CaCl2 concentration of 1.5 mol L&mi...
Source: Journal of Alloys and Compounds - Category: Chemistry Source Type: research
(Natural News) Scientists have finished their first 3D scan of an underwater volcano located 300 miles off the coast of Oregon with a base the size of Austin and a main magma reservoir approximately two-thirds of the length of Manhattan. Dubbed Axial Seamount, the “deep-sea magma monster” is the youngest in the Cobb-Eickelberg seamount chain, a 1,120-mile-long line...
Source: NaturalNews.com - Category: Consumer Health News Source Type: news
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