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N-3 emulsion

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https://www.readbyqxmd.com/read/29784386/fabrication-of-powdery-polymer-aerogel-as-the-stationary-phase-for-high-resolution-gas-chromatographic-separation
#1
Juan Zheng, Cuiming Lu, Junlong Huang, Luyi Chen, Chuyi Ni, Xintong Xie, Fang Zhu, Dingcai Wu, Gangfeng Ouyang
Novel powdery polymer aerogel (PPA) prepared via the (micro)emulsion polymerization and the following hyper crosslinking reaction was fabricated as stationary phase of capillary column for the first time. Due to its powdery morphology, unique 3D nano-network structure, high surface area and good thermostability, the PPA-coated capillary column demonstrated high-resolution chromatographic separation towards nonpolar and weakly polar organic compounds, including benzene series, n-alkanes, ketone mixtures and trichlorobenzenes...
August 15, 2018: Talanta
https://www.readbyqxmd.com/read/29738255/responsive-emulsions-stabilized-by-amphiphilic-supramolecular-graft-copolymers-formed-in-situ-at-the-oil-water-interface
#2
Huazhang Guo, Pin Liu, Huaming Li, Chong Cheng, Yong Gao
Amphiphilic supramolecular graft copolymers which can stabilize oil-in-water (o/w) emulsions and enable responsive demulsification were demonstrated in this study. Linear poly[( N, N-dimethylacrylmide)- stat-(3-acrylamidophenylboronic acid)] (PDMA- stat-PAPBA) copolymers with phenylboronic acid (PBA) groups and linear polystyrene homopolymers with cis-diol terminals (PS(OH)2 ) were synthesized by reversible addition-fragmentation chain transfer polymerization. By the homogenization of the biphasic mixtures of an alkaline water solution of PDMA- stat-PAPBA copolymer and a toluene solution of PS(OH)2 homopolymer, stable o/w emulsions could be generated, although neither PDMA- stat-PAPBA nor PS(OH)2 alone was able to stabilize the emulsion...
May 8, 2018: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29735104/inhibition-of-interaction-between-epigallocatechin-3-gallate-and-myofibrillar-protein-by-cyclodextrin-derivatives-improves-gel-quality-under-oxidative-stress
#3
Yumeng Zhang, Lin Chen, Yuanqi Lv, Shuangxi Wang, Zhiyao Suo, Xingguang Cheng, Xinglian Xu, Guanghong Zhou, Zhixi Li, Xianchao Feng
High levels of polyphenols can interact with myofibrillar proteins (MPs), causing damage to a MP emulsion gel. In this study, β-cyclodextrins were used to reduce covalent and non-covalent interaction between epigallocatechin-3-gallate (EGCG) and MPs under oxidative stress. The loss of both thiol and free amine groups and the unfolding of MPs caused by EGCG (80 μM/g protein) were significantly prevented by β-cyclodextrins, and the structural stability and solubility were improved. MP emulsion gel treated with EGCG (80 μM/g protein) had the highest cooking loss (68...
June 2018: Food Research International
https://www.readbyqxmd.com/read/29735051/emulsions-of-sunflower-wax-in-pectin-aqueous-solutions-physical-characterization-and-stability
#4
Mayra C Chalapud, Erica R Baümler, Amalia A Carelli
The knowledge of the stability and physical properties of film-forming solutions is necessary for optimizing the process design of films. In order to evaluate their applicability for the production of edible films, the rheological and microstructural properties, particle size and physicochemical stability of aqueous emulsions of low methoxyl pectin and sunflower waxes from normal and high-oleic hybrids were assessed. Emulsions were prepared with different pectin concentrations (1, 2 and 3% w/w) and wax proportions (0...
June 2018: Food Research International
https://www.readbyqxmd.com/read/29701873/children-with-intestinal-failure-undergoing-intestinal-rehabilitation-are-at-risk-for-essential-fatty-acid-deficiency
#5
Riikka Gunnar, Mirka Lumia, Mikko Pakarinen, Laura Merras-Salmio
BACKGROUND: Essential fatty acid (EFA) status may be compromised during the intestinal failure (IF) rehabilitation. Parenteral lipid restriction is used to treat intestinal failure associated liver disease (IFALD), while the enteral fatty acid (FA) absorption remains limited. We analyzed the FA status among pediatric IF and intestinal insufficiency patients. METHODS: We evaluated 49 patients aged 0-18 years attending our nationwide IF referral center. Their serum FA fractions were determined and examined against previous nutrition, parenteral lipid emulsion, and intestinal anatomy data...
April 27, 2018: JPEN. Journal of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29690724/-the-effect-of-berberine-on-ameliorating-chronic-inflammatory-pain-and-depression
#6
F Xu, J Yang, B Meng, J W Zheng, Q Liao, J P Chen, X W Chen
Objective: To explore the effect of berberine on chronic inflammatory pain and the comorbid depression and the associated mechanisms. Methods: Forty healthy male ICR mice (2 months, 25-30 g) were used in the present study. The chronic inflammatory pain was induced by intraplantar injection of complete freund's adjuvant (CFA) to the hind paws. All animals were divided into 4 groups ( n =10 for each group) according to random number table: the saline group (group A), the chronic pain group (group B), the saline+ berberine group (group C) and the chronic pain+ berberine group (group D)...
April 10, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29670329/preparation-and-in-vitro-in-vivo-evaluation-of-plga-microspheres-containing-norquetiapine-for-long-acting-injection
#7
Chun-Woong Park, Hyo-Jung Lee, Dong-Won Oh, Ji-Hyun Kang, Chang-Soo Han, Dong-Wook Kim
Background: Norquetiapine ( N -desalkyl quetiapine, NQ) is an active metabolite of quetiapine with stable pharmacokinetic and pharmacological properties. However, its short half-life is a drawback for clinical applications, and long-acting formulations are required. Purpose: The objectives of this study were to prepare improved entrapment efficiency NQ freebase microspheres by the solvent evaporation method with poly(d,l-lactic-co-glycolic acid) (PLGA) as a release modulator and to evaluate their physicochemical and in vitro/in vivo release properties...
2018: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/29666539/oxidative-status-of-a-yogurt-like-fermented-maize-product-containing-phytosterols
#8
Adriana María Descalzo, Sergio Aníbal Rizzo, Adrien Servent, Luciana Rossetti, Marc Lebrun, Carolina Daiana Pérez, Renaud Boulanger, Christian Mestres, Dominique Pallet, Claudie Dhuique-Mayer
This work describes the formulation of a functional yogurt-like product based on fermented maize with added phytosterols and its oxidative stability during cold storage. The technological challenge was to stabilize 3.5% esterified phytosterols (between 2 and 3 g of free sterols) in a low-fat emulsion and to preserve the obtained product throughout processing and storage. The natural bioactive compounds: lutein, zeaxanthin, β-cryptoxanthin, β-carotene and γ-tocopherol were detected in the yogurt, and remained stable during 12 days of refrigeration...
May 2018: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/29649118/optical-dna-biosensor-based-on-square-planar-ethyl-piperidine-substituted-nickel-ii-salphen-complex-for-dengue-virus-detection
#9
Eda Yuhana Ariffin, Ling Ling Tan, Nurul Huda Abd Karim, Lee Yook Heng
A sensitive and selective optical DNA biosensor was developed for dengue virus detection based on novel square-planar piperidine side chain-functionalized N , N '-bis-4-(hydroxysalicylidene)-phenylenediamine-nickel(II), which was able to intercalate via nucleobase stacking within DNA and be functionalized as an optical DNA hybridization marker. 3-Aminopropyltriethoxysilane (APTS)-modified porous silica nanospheres (PSiNs), was synthesized with a facile mini-emulsion method to act as a high capacity DNA carrier matrix...
April 12, 2018: Sensors
https://www.readbyqxmd.com/read/29628442/obstructive-sleep-apnea-and-effects-of-cpap-on-triglyceride-rich-lipoprotein-metabolism
#10
Luciano F Drager, Thauany M Tavoni, Vanessa M Silva, Raul D Santos, Rodrigo P Pedrosa, Luiz A Bortolotto, Carmen G C Vinagre, Vsevolod Y Polotsky, Geraldo Lorenzi-Filho, Raul C Maranhao
This study aimed to explore lipoprotein metabolism in Obstructive Sleep Apnea (OSA) and the effects of continuous positive airway pressure (CPAP). We studied 15 men with severe OSA (apnea-hypopnea index, AHI ≥30 events/hour) and 12 age, body mass index and waist circumference-matched volunteers without OSA (AHI <5 events/hour). Carotid intima-media thickness (CIMT) was determined by a blind examiner. After 12 hours fasting, a triglyceride-rich chylomicron-like emulsion, labeled with [14C]-cholesterol ester and [3H]-triolein was injected intravenously followed by blood samples collection at pre-established time...
April 8, 2018: Journal of Lipid Research
https://www.readbyqxmd.com/read/29628234/dextran-derivatives-application-as-flocculants
#11
REVIEW
Luminita Ghimici, Marieta Nichifor
A large variety of hydrophilic and amphiphilic polyelectrolytes based on dextran have been previously tested as coagulating and flocculating agents in model wastewater treatment and the results are presented in this review article. The dextran derivatives are either cationic, bearing (i) pendent quaternary ammonium groups, N-alkyl-N,N-dimethyl-N-(2-hydroxypropyl)ammonium chloride and (ii)1-(2-hydroxypropyl)-3-methyl imidazolium chloride, randomly distributed along the polymer backbone or anionic, (i) dextran monobasic phosphate with HP(O)(OH) groups and (ii) dextran derivatives with carboxylic groups namely, dextran-g-poly(acrylamide-co-sodium acrylates)...
June 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29594483/electrochemical-determination-of-acetaminophen-using-a-glassy-carbon-electrode-modified-with-a-hybrid-material-consisting-of-graphene-aerogel-and-octadecylamine-functionalized-carbon-quantum-dots
#12
Li Ruiyi, Zhu Haiyan, Li Zaijun, Liu Junkang
The study reports on the synthesis of a graphene aerogel@octadecylamine-functionalized carbon quantum dots (GA@O-CQDs). The graphene oxide aqueous dispersion, O-CQDs aqueous dispersion and toluene were strongly mixed to make a toluene-in-water Pickering emulsion. The graphene oxide sheets in the aqueous phase are reduced by hydrazine hydrate, diffuse into the toluene droplets, and self-assemble into graphene oxide microgels. This is followed by freeze-drying and thermal annealing to obtain the GA@O-CQDs hybrid that has a three-dimensional structure of several microns...
January 31, 2018: Mikrochimica Acta
https://www.readbyqxmd.com/read/29589222/development-of-novel-octanoyl-chitosan-nanoparticles-for-improved-rifampicin-pulmonary-delivery-optimization-by-factorial-design
#13
Kailash C Petkar, Sandip Chavhan, N Kunda, I Saleem, S Somavarapu, Kevin M G Taylor, Krutika K Sawant
A novel hydrophobic chitosan derivative, octanoyl chitosan (OC) with improved organic solubility was synthesized, characterized, and employed for the preparation of rifampicin (Rif) encapsulated nanoparticle formulations for pulmonary delivery. OC was characterized to confirm acyl group substitution and cytotoxicity in A549 epithelial lung cells. OC nanoparticles were produced by the double emulsion solvent evaporation technique without cross-linking and characterized for particle size distribution, morphology, crystallinity, thermal stability, aerosol delivery, and drug release rate...
March 27, 2018: AAPS PharmSciTech
https://www.readbyqxmd.com/read/29564111/development-of-omega-3-rich-camelina-sativa-seed-oil-emulsions
#14
Henok D Belayneh, Randy L Wehling, Yue Zhang, Ozan N Ciftci
Camelina sativa seed is an underutilized oil source rich in omega-3 fatty acids; however, camelina oil is not fully explored for food applications. Its high omega-3 content makes it susceptible to oxidation, which may limit food applications. Therefore, the main objective of this study was to investigate the potential of camelina seed oil to form physically and oxidatively stable emulsions as a potential delivery system for omega-3 fatty acids. Effects of homogenization conditions, namely, pressure (15 MPa-30 MPa), number of passes (1,3,5, and 7), and type of homogenizers (high pressure and high shear) on the structural properties and stability of camelina seed oil emulsions stabilized with whey protein isolate were studied...
March 2018: Food Science & Nutrition
https://www.readbyqxmd.com/read/29558705/fabricating-core-au-shell-different-stimuli-responsive-polymers-nanoparticles-via-inverse-emulsion-polymerization-comparing-dox-release-behavior-in-dark-room-and-under-nir-lighting
#15
Mahsa Mazloomi-Rezvani, Mehdi Salami-Kalajahi, Hossein Roghani-Mamaqani
Different core-shell nanoparticles with Au as core and stimuli-responsive polymers such as poly(acrylic acid) (PAA), poly(methacrylic acid) (PMAA), poly(N-isopropylacrylamide) (PNIPAAm), poly(N,N'-methylenebis(acrylamide)) (PMBA), poly(2-hydroxyethyl methacrylate) (PHEMA) and poly((2-dimethylamino)ethyl methacrylate) (PDMAEMA) as shells were fabricated via inverse emulsion polymerization. Dynamic light scattering (DLS) was used to investigate particles sizes and particle size distributions and transmission electron microscopy (TEM) was applied to observe the core-shell structure of Au-polymer nanoparticles...
June 1, 2018: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29547375/promising-perspectives-for-ruminal-protection-of-polyunsaturated-fatty-acids-through-polyphenol-oxidase-mediated-crosslinking-of-interfacial-protein-in-emulsions
#16
N De Neve, B Vlaeminck, F Gadeyne, E Claeys, P Van der Meeren, V Fievez
Previously, polyunsaturated fatty acids (PUFA) from linseed oil were effectively protected (>80%) against biohydrogenation through polyphenol-oxidase-mediated protein crosslinking of an emulsion, prepared with polyphenol oxidase (PPO) extract from potato tuber peelings. However, until now, emulsions of only 2 wt% oil have been successfully protected, which implies serious limitations both from a research perspective (e.g. in vivo trials) as well as for further upscaling toward practical applications. Therefore, the aim of this study was to increase the oil/PPO ratio...
March 16, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29545413/efficacy-and-safety-of-0-1-ciclosporin-a-cationic-emulsion-in-dry-eye-disease-a-pooled-analysis-of-two-double-masked-randomised-vehicle-controlled-phase-iii-clinical-studies
#17
Andrea Leonardi, Elisabeth M Messmer, Marc Labetoulle, Mourad Amrane, Jean-Sébastien Garrigue, Dahlia Ismail, Maite Sainz-de-la-Maza, Francisco C Figueiredo, Christophe Baudouin
BACKGROUND/AIM: To assess the treatment effect of 0.1% ciclosporin A cationic emulsion (CsA CE) versus vehicle on signs/symptoms of dry eye disease (DED) in various subgroups (moderate-to-severe DED/severe DED/Sjögren's syndrome (SS)/SS with severe DED). METHODS: Pooled data were analysed from two similar phase III studies: SICCANOVE (moderate-to-severe DED) and SANSIKA (severe DED with severe keratitis). In both studies, patients aged ≥18 years received CsA CE 0...
March 15, 2018: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29516692/-effect-of-different-doses-of-herbal-cake-partitioned-moxibustion-on-histopathological-changes-of-colon-tissue-in-ulcerative-colitis-rats
#18
Dan Zhang, Yan-Bo Ren, Huan-Gan Wu, Yan-Ting Yang, Li-Jie Wu, Ji Zhang, Zheng Shi, Xiao-Peng Ma
OBJECTIVE: To observe the effect of different-doses of herbal cake-partitioned moxibustion (Moxi) on histopathological changes of the damaged colon tissue in rats with ulcerative colitis (UC), so as to select an optimal dosage of Moxi in the treatment of UC. METHODS: Sixty-three male Sprague Dawley (SD) rats were randomized into 7 groups: normal control, model, medication, and 1, 2, 3 and 4 moxa-cone Moxi ( n =9 rats per group). The UC model was developed by subcutaneous injection of emulsion (1 mL) containing colon mucosa-prepared protein suspension and complete Freund's adjuvant into the toes, groin and back...
February 25, 2018: Zhen Ci Yan Jiu, Acupuncture Research
https://www.readbyqxmd.com/read/29505154/characterization-of-fatty-acid-profiles-in-infants-with-intestinal-failure-associated-liver-disease
#19
Meredith A Baker, Paul D Mitchell, Alison A O'Loughlin, Alexis K Potemkin, Lorenzo Anez-Bustillos, Duy T Dao, Gillian L Fell, Kathleen M Gura, Mark Puder
BACKGROUND: The purpose of this study was to characterize fatty acid profiles (FAPs) in parenteral nutrition (PN)-dependent infants with intestinal failure-associated liver disease (IFALD) receiving soybean oil-based lipid emulsion (SO) doses of ∼3 and ∼1 g/kg/d. METHODS: Prospectively collected data were retrospectively reviewed. Serum FAPs of patients <1 year old who experienced development of IFALD while receiving standard PN with SO were examined before transitioning to a fish oil-based lipid emulsion for IFALD treatment...
January 2018: JPEN. Journal of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29503599/structure-function-relationships-in-pectin-emulsification
#20
F M Kpodo, J K Agbenorhevi, K Alba, I N Oduro, G A Morris, V Kontogiorgos
The emulsifying characteristics of pectins isolated from six different okra genotypes were investigated and their structure-function relationships have been evaluated. Emulsion formation and stabilization of acidic oil-in-water emulsions (pH 2.0, φ  = 0.1) were studied by means of droplet size distribution, ζ -potential measurements, viscometry, interfacial composition analysis and fluorescence microscopy. Fresh and aged emulsions differed in terms of droplet size distribution, interfacial protein and pectin concentrations (Γ) depending on the molecular properties of pectin that was used...
2018: Food Biophysics
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