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Eline Lima Borges, José Ferreira Pires, Mery Natali Silva Abreu, Vera Lúcia de Araújo Lima, Patrícia Aparecida Barbosa Silva, Sônia Maria Soares
Objective: to estimate the healing rate of complex surgical wounds and its associated factors. Method: retrospective cohort study from 2003 to 2014 with 160 outpatients of a Brazilian university hospital. Data were obtained through consultation of the medical records. Survival function was estimated using the Kaplan-Meier method and Cox regression model to estimate the likelihood of the occurrence of healing. Results: the complex surgical wound healing rate was 67...
October 10, 2016: Revista Latino-americana de Enfermagem
Anwesha Sarkar, Aiqian Ye, Harjinder Singh
This review discusses recent understanding of the oral destabilization of food emulsions from a colloidal perspective. The review deals mainly with the microstructural changes in emulsions and emulsion gels during oral processing at a colloidal length scale, with the key emphasis being on the role of electrostatic interactions, enzymatic modifications and surface-induced phenomena. Knowledge of these complex interactions between the emulsion droplets and the oral components, such as salivary proteins, enzymes and oral shear, might be the key to understanding the oral behaviour and sensory perception of food emulsions...
October 5, 2016: Food & Function
K S Mikkonen, D Merger, P Kilpeläinen, L Murtomäki, U S Schmidt, M Wilhelm
Materials manufacturing industries seek efficient, economic, and sustainable compounds for stabilizing dispersed systems such as emulsions. In this study, novel, abundant biobased hydrocolloids spruce galactoglucomannans (GGM) and birch glucuronoxylans (GX) were obtained from a forestry biorefining process and characterized as versatile stabilizers of rapeseed oil-in-water emulsions. For the first time, GGM and GX isolated by pressurized hot water extraction (PHWE) of spruce and birch saw meal, respectively, were studied in emulsions...
September 27, 2016: Soft Matter
Chia-Hua Tai, Mei-Yu Hsu
BACKGROUND: Noninvasive positive pressure ventilation (NPPV) provides ventilation without tracheal intubation. Facial pressure injury is a recognized complication of this technique, making the prevention of facial pressure injuries an important issue for NPPV patients. PURPOSE: The present study compared the effects of foam dressing and hydrocolloid dressing in preventing facial pressure injuries in NPPV patients. METHODS: A randomized clinical trial was used to evaluate participants that were referred from the intensive care unit of a medical center in eastern Taiwan...
October 2016: Hu Li za Zhi the Journal of Nursing
Nicole Boswell, Cheryl L Waker
BACKGROUND: Nurses have a primary role in promoting neonatal skin integrity and skin care management of the critically ill neonate. Adhesive products are essential to secure needed medical devices but can be a significant factor contributing to skin breakdown. Current literature does not offer a definitive answer regarding which products most safely and effectively work to secure needed devices in the high-risk neonatal population. PURPOSE: To determine which adhesive method is best practice to safely and effectively secure lines/tubes in the high-risk neonate population...
September 19, 2016: Advances in Neonatal Care: Official Journal of the National Association of Neonatal Nurses
Rahul Thakur, Bahareh Saberi, Penta Pristijono, John Golding, Costas Stathopoulos, Christopher Scarlett, Michael Bowyer, Quan Vuong
The main aim of this study was to develop rice starch (RS), ι-carrageenan (ι-car) based film. Different formulations of RS (1-4%, w/w), ι-car (0.5-2%, w/w) was blended with stearic acid (SA; 0.3-0.9%, w/w) and glycerol (1%, w/w) as a plasticizer. The effect of film ingredients on the thickness, water vapour permeability (WVP), film solubility (FS), moisture content (MC), colour, film opacity (FO), tensile strength (TS), elongation-at-break (EAB) of film was examined. Interactions and miscibility of partaking components was studied by using Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD)...
September 16, 2016: International Journal of Biological Macromolecules
S Sivapratha, Preetam Sarkar
A single emulsifier material is seldom sufficient to cater to the requirements of complex emulsion-based food formulations that have to function over a wide range of pH, ionic strength, storage time and temperature. Food emulsions have to be designed to satisfy several requirements for use which could be achieved by combining the beneficial properties of multiple emulsifiers. This article reviews novel biological materials that are used to design oil-in-water (o/w) emulsions. More specifically, the major focus is to discuss (o/w) interfaces stabilized by multiple biopolymers...
September 19, 2016: Critical Reviews in Food Science and Nutrition
Yi Wen Chai, Eu Han Lee, John D Gubbe, John H Brekke
The development and utilization of three-dimensional cell culture platforms has been gaining more traction. Three-dimensional culture platforms are capable of mimicking in vivo microenvironments, which provide greater physiological relevance in comparison to conventional two-dimensional cultures. The majority of three-dimensional culture platforms are challenged by the lack of cell attachment, long polymerization times, and inclusion of undefined xenobiotics, and cytotoxic cross-linkers. In this study, we review the use of a highly defined material composed of naturally occurring compounds, hyaluronic acid and chitosan, known as Cell-Mate3DTM...
2016: PloS One
Seyed Elias Mirabolhassani, Ali Rafe, Seyed M A Razavi
Hydrocolloid interactions with solvent/cosolutes play a vital role in the resolution of their functional properties. Basil seed gum (BSG) is a plant-derived hydrocolloid which has been found many applications in food formulations as stabilizer, emulsifier, thickener and gelling agents. Sucrose and lactose are the most effective sugars in textural and sensorial properties of bakery and dairy products which adding them to solutions containing hydrocolloids can be helpful to approach a proper formula. In this paper, the effect of temperature (25-65°C), sucrose (10, 20, 30 and 40%) and lactose (5, 10 and 15%) were investigated through some molecular parameters of BSG...
September 13, 2016: International Journal of Biological Macromolecules
Michael Saco, Nicole Howe, Rajiv Nathoo, Basil Cherpelis
Diabetic foot ulcers and venous leg ulcers are chronic wounds frequently encountered by dermatologists. Choosing appropriate wound dressings can effectively promote wound healing and potentially reduce morbidity and financial burden experienced by patients. The objective of our systematic review and meta-analysis was to evaluate wound healing efficacies of synthetic active dressings in diabetic foot ulcer and venous leg ulcer management. For data collection, PubMed, Embase, Cochrane Library, CINAHL, and clinicaltrials...
August 15, 2016: Dermatology Online Journal
M Iqbal H Khan, Jahid M M Islam, Wasifa Kabir, Ataur Rahman, Maria Mizan, M Fizur Rahman, Jakia Amin, Mubarak A Khan
Bio-active bi-layer thin film having both bio-adhesive and non-adhesive end composed of polyvinyl alcohol (PVA) and gelatin/chitosan/polyethylene glycol (PEG) blend was developed for biomedical applications especially as an alternative of advanced tissue scaffold. The developed composite film was subjected to mechanical, thermal and physico-chemical characterization such as tensile strength (TS) and elongation at break (Eb), differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR), fluid drainage capacity and biocompatibility...
December 1, 2016: Materials Science & Engineering. C, Materials for Biological Applications
A Massimiliano D'Erme, M Iannone, V Dini, M Romanelli
OBJECTIVE: Contact allergies can occur frequently in patients with chronic leg ulcers (CLUs), even in those with a short duration of ulcerative disease. The wide spectrum of therapeutic products promotes development of the delayed type of hypersensitivity and continuous changes in the allergens pattern, which make the diagnosis and treatment extremely difficult in many cases. A prompt diagnosis and treatment of allergic contact dermatitis (ACD) in patients suffering from CLUs is very important for a best clinical outcome of these two common diseases...
September 2016: Journal of Wound Care
Natalia Rosa-Sibakov, Terhi K Hakala, Nesli Sözer, Emilia Nordlund, Kaisa Poutanen, Anna-Marja Aura
The objective was to evaluate the potential of birch xylan as a food hydrocolloid and dietary fibre. High-molecular weight xylan was isolated from birch kraft pulp by alkaline extraction, and enzymatically hydrolysed. Fermentability of xylans was evaluated using an in vitro colon model and performance as a hydrocolloid was studied in low-fat acid milk gels (1.5% and 3% w/w). Texture of the gels and water holding capacity of xylans were compared with inulin, fructooligosaccharide and xylooligosaccharide. Xylans showed slower fermentation rate by faecal microbiota than the references...
December 10, 2016: Carbohydrate Polymers
Rana Imani, Wei Shao, Samira Taherkhani, Shahriar Hojjati Emami, Satya Prakash, Shahab Faghihi
The aim of this study is to improve hydrocolloid stability and siRNA transfection ability of a reduced graphene oxide (rGO) based nano-carrier using a phospholipid-based amphiphilic polymer (PL-PEG) and cell penetrating peptide (CPPs). The dual functionalized nano-carrier is comprehensively characterized for its chemical structure, size, surface charge and morphology as well as thermal stability. The nano-carrier cytocompatibility, siRNA condensation ability both in the presence and absence of enzyme, endosomal buffering capacity, cellular uptake and intracellular localization are also assessed...
November 1, 2016: Colloids and Surfaces. B, Biointerfaces
M Sopata, M Kucharzewski, E Tomaszewska
OBJECTIVE: To assess the impact of a two-period treatment on the clinical condition, bacteriological changes and results of treatment of venous leg ulcers (VLU) using octenidine dihydrochloride. METHOD: Patients with a VLU were recruited and treated with octenidine dihydrochloride for one month, after which they were randomised and treated with hydrocolloids or foam dressings. The wounds were clinically assessed for the amount of necrotic tissue, granulation tissue, epithelialisation, amount of exudate and pain level...
August 2016: Journal of Wound Care
Parichehr Sabaghzade Irani, Shokoh Varaie
BACKGROUND: Therapeutic effects of various treatment options in burn wound healing have been one of the most controversial issues in wound care. Aloe Vera is an herbal medicine, which has wound healing effects on chronic wound. The present study was carried out to examine and compare the effect of Aloe Vera gel and nitrofurazone 2% on epithelialization and granulation tissue formation with respect to superficial second-degree burns. METHODS: This is a randomized clinical trial and the sampling method was used based on pre-defined inclusion criteria...
May 2016: Iranian Journal of Medical Sciences
Kelly Cristina Inoue, Laura Misue Matsuda
OBJECTIVE: to identify costs of dressings to prevent sacral pressure ulcers in an adult intensive care unit in Paraná, Brazil. METHODS: secondary analysis study with 25 patients admitted between October 2013 and March 2014, using transparent polyurethane film (n=15) or hydrocolloid dressing (n=10) on the sacral region. The cost of each intervention was based on the unit amount used in each type of dressing, and its purchase price (transparent film = R$15.80, hydrocolloid dressing = R$68...
July 2016: Revista Brasileira de Enfermagem
Neeraj Mittal, Pooja Mattu, Gurpreet Kaur
Water soluble gums also known as hydrocolloids are increasingly finding applications in the pharmaceutical and food industry due to their versatile functional properties. They possess considerable use in food and pharmaceutical industries as emulsifying, thickening and gelling agents. In the present investigation a heteropolysaccharide galactomannan was extracted from Leucaena leucocephala (Lam.) seeds by an aqueous method, characterized for its compositional analysis (mannose: galactose ratio), physicochemical and functional properties (solubility), and mechanical properties...
November 2016: International Journal of Biological Macromolecules
Pimchada Itthivadhanapong, Srinual Jantathai, Gerhard Schleining
This study aimed to compare the effects of 1 % addition of four selected hydrocolloids (xanthan, guar, hypdroxypropylmethylcellulose and carrageenan) on quality characteristics of batter and of black waxy rice steamed cake compared to a control without hydrocolloids. Dynamic frequency sweeps of the batters at 25 °C indicated that all formulations exhibited gel-like behaviour with storage moduli (G') higher than loss moduli (G″). Hydrocolloids increased the apparent viscosity and the thixotropic behaviour, depending on the type of hydrocolloids...
June 2016: Journal of Food Science and Technology
Sneha Sehwag, Madhusweta Das
Whole jamun based functional confection (WJFC) was developed from an optimized blend (through response surface methodology) containing 26.585 % paste of jamun pulp with adhering skin, 2 % jamun seed powder, hydrocolloid mixture (2.289 % agar, 1.890 % pectin and 27.236 % polydextrose), antimicrobials (0.022 % benzoic acid and 0.085 % sorbic acid), and 40 % added water. The confection also contained 0.08 % sucralose, 0.06 % citric acid and 100 mg CaCl2.2H2O/g pectin. The confection was found to be rich in minerals like Ca, Mg, K, Na and P, with prebiotic activity and low glycemic index (48...
June 2016: Journal of Food Science and Technology
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