Biodegradable antioxidant chitosan films useful as an anti-aging skin mask

Afonso, C.R.; Hirano, Ryogo; Gaspar, Ana L.; Chagas, Eduardo Galvão Leite das; Carvalho, Rosemary Aparecida de; Silva, Flávio Vasconcelos da; Leonardi, Gislaine Ricci; Lopes, Patrícia Santos; Silva, C.F.; Yoshida, Cristiana Maria Pedroso

doi:10.1016/j.ijbiomac.2019.04.052

Cited by 74 publications

(31 citation statements)

References 74 publications

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“…Based on these Pearson's correlation coefficients, the relationship of total carotenoid content with parameters from the CIELab color space will allow estimate rapidly this pigment concentration of extracts by MHG and SLE technologies with a non-destructive method. Similar associations were established for several vegetable raw materials [58,59].…”

Section: Color Characteristics Of the Extractssupporting

confidence: 69%

Microwave Hydrodiffusion and Gravity (MHG) Extraction from Different Raw Materials with Cosmetic Applications

et al. 2019

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Microwave hydrodiffusion and gravity (MHG) and ethanolic solid-liquid extraction were compared using selected plant sources. Their bioactive profile, color features, and proximate chemical characterization were determined. MHG extracts, commercial antioxidants, and three distinct types of thermal spring water were used in a sunscreen cream formulation. Their bioactive capacity, chemical and rheological properties were evaluated. MHG Cytisus scoparius flower extract provided the highest bioactive properties. Pleurotus ostreatus MHG liquor exhibited the highest total solid extraction yield. The Brassica rapa MHG sample stood out for its total protein content and its monosaccharide and oligosaccharide concentration. Quercus robur acorns divided into quarters supplied MHG extract with the lowest energy requirements, highest DPPH inhibition percentage, total lipid content and the highest enzyme inhibition. The chemical and bioactive capacities stability of the sunscreen creams elaborated with the selected MHG extracts and the thermal spring waters showed a similar behavior than the samples containing commercial antioxidants.

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Section: Color Characteristics Of the Extractssupporting

confidence: 69%

Microwave Hydrodiffusion and Gravity (MHG) Extraction from Different Raw Materials with Cosmetic Applications

et al. 2019

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“…Annatto ( Bixa orellana ) seeds powder is a nontoxic natural dye with a yellow–orange–red color because of the high value of carotenoids, which are mostly bixin and norbixin, with interesting biological properties, such as antioxidant and free radical scavenging activities as well as antibacterial, anti-inflammatory, and neuropharmacological abilities [51]. The incorporation of annatto powder and vitamin C into reacetylated chitosan (degree of acetylation 33.6%) films improved significantly the ROS scavenging ability, by releasing the antioxidant compounds, and could find potential application as an anti-aging skin mask [52].…”

Section: Polymeric Formulationsmentioning

confidence: 99%

Recent Developments in the Reduction of Oxidative Stress through Antioxidant Polymeric Formulations

et al. 2019

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Reactive oxygen and nitrogen species (RONS) are produced endogenously in our body, or introduced through external factors, such as pollution, cigarette smoke, and excessive sunlight exposure. In normal conditions, there is a physiological balance between pro-oxidant species and antioxidant molecules that are able to counteract the detrimental effect of the former. Nevertheless, when this homeostasis is disrupted, the resulting oxidative stress can lead to several pathological conditions, from inflammation to cancer and neurodegenerative diseases. In this review, we report on the recent developments of different polymeric formulations that are able to reduce the oxidative stress, from natural extracts, to films and hydrogels, and finally to nanoparticles (NPs).

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“…Chitosan was selected as an amino source for MCRs due to its natural abundance, non‐toxicity, and biodegradability. [ 175 ] Moreover, the widespread presence of hydroxyl and amino groups in the molecular chain of chitosan facilitated the removal of heavy metal ions from the contaminated water. [ 176 ] Therefore, chitosan, which is rich in functional groups and environmentally friendly, was selected as one of the raw materials for the three‐component reaction.…”

Section: Fabrication Of Polymeric Composites Based On Mcrs For Removamentioning

confidence: 99%

Recent Advances on Fabrication of Polymeric Composites Based on Multicomponent Reactions for Bioimaging and Environmental Pollutant Removal

Yang

Liang

et al. 2021

Macromol. Rapid Commun.

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As the core of polymer chemistry, manufacture of functional polymers is one of research hotspots over the past several decades. Various polymers are developed for diverse applications due to their tunable structures and unique properties. However, traditional step‐by‐step preparation strategies inevitably involve some problems, such as separation, purification, and time‐consuming. The multicomponent reactions (MCRs) are emerging as environmentally benign synthetic strategies to construct multifunctional polymers or composites with pendant groups and designed structures because of their features, such as efficient, fast, green, and atom economy. This mini review summarizes the latest advances about fabrication of multifunctional fluorescent polymers or adsorptive polymeric composites through different MCRs, including Kabachnik–Fields reaction, Biginelli reaction, mercaptoacetic acid locking imine reaction, Debus–Radziszewski reaction, and Mannich reaction. The potential applications of these polymeric composites in biomedical and environmental remediation are also highlighted. It is expected that this mini‐review will promote the development preparation and applications of functional polymers through MCRs.

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Biodegradable antioxidant chitosan films useful as an anti-aging skin mask

Cited by 74 publications

References 74 publications

Microwave Hydrodiffusion and Gravity (MHG) Extraction from Different Raw Materials with Cosmetic Applications

Microwave Hydrodiffusion and Gravity (MHG) Extraction from Different Raw Materials with Cosmetic Applications

Recent Developments in the Reduction of Oxidative Stress through Antioxidant Polymeric Formulations

Recent Advances on Fabrication of Polymeric Composites Based on Multicomponent Reactions for Bioimaging and Environmental Pollutant Removal

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