8 documents found, page 1 of 1

Hydrogel as an alternative structure for food packaging systems

Hydrogels are three-dimensional, hydrophilic networks, comprising polymeric chains linked through physical or chemical bonds. In the area of food, hydrogels have great potential to be used in food packaging systems or as carriers of bioactive components. This paper reviews the nature of hydrogels, their 3D network conformation, their functional properties, and their potential applications in food packaging syst...

Development, cytotoxicity and eye irritation profile of a new sunscreen formula...

The objective of this work was to characterize the toxicological profile of a newly developed sunscreen formulation based on polymeric nanocapsules (NCs) loading benzophenone-3 (BZP3). NCs composed of poly(ε-caprolactone) carrot oil and Pluronic® F68 were produced by emulsification-diffusion method. Their mean particle size (Z-Ave) ranged from 280 to 420 nm, polydispersity index (PDI) was below 0.37, while zeta...

Collagen modification by Maillard reaction

Effect of green propolis on oral epithelial dysplasia in rats

Studies have demonstrated that flavonoid compounds of green propolis have antitumoral activity. Study Design: Experimental study. Aims: To evaluate the effect of a hydroalcoholic extract of green propolis (EPV) on chemically induced epithelial dysplasias in rat tongues. Methods and Materials: DMBA was brushed on the lingual dorsum of rats 3x/week on alternate days - 100 (PROP1), 200 (PROP2) and 300 mg/kg (PROP3...

Efeito da própolis verde sobre displasias epiteliais orais em ratos

Estudos têm demonstrado que componentes hidrossolúveis da própolis verde, flavonóides, apresentam atividade antitumoral. Forma de Estudo: Estudo experimental. Objetivo: Avaliar o efeito do extrato hidroalcoólico de própolis verde (EPV) sobre displasias epiteliais linguais quimicamente induzidas em ratos. Materiais e Métodos: Neste estudo, foi pincelado DMBA (9,10-dimetil-1,2-benzatraceno) no dorso lingual de ra...

Endodontia: teor de Cloro Livre e PH em soluções comerciais de Hipoclorito de S...

O hipoclorito de sódio é considerado irrigante de primeira escolha entre os cirurgiões dentistas do mundo inteiro, devido as suas excelentes propriedades. No entanto, para que o mesmo possa exercer tais propriedades, é necessário que o produto apresente uma boa qualidade. O propósito deste estudo foi verificar a qualidade de diferentes marcas de hipoclorito de sódio por meio da avaliação do teor de cloro livre ...

Quantitative analysis of mast cells in the healing of wounds treated with colla...

Mast cells are connective tissue cells responsible for initiating the inflammatory reaction and chronicity of the process, and play an important role in the dynamics of the repair scar. The use of natural or synthetic biological membranes in the repair of extensive dermal wounds, in turn, has been widely discussed in the literature, particularly those based on collagen, due to biocompatibility and interactivity...

Improvement of dermal burn healing by combining sodium alginate/chitosan-based ...

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