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Acid (Film) - Europe PMC

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Last Updated: 10 May 2022

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Glucose-sensitive delivery of tannic acid by a photo-crosslinked chitosan hydrogel film for antibacterial and anti-inflammatory therapy.

Specifically, the photo-crosslinked CS hydrogel was first isolated and then immersed in TA to produce composite hydrogel film with improved mechanical properties. Subsequently, N-hydroxysuccinimide/1-ethyl-3-carbodiimide chemistry based coupling chemistry was used to covalently crosslink glucose oxidase to CS in order to achieve glucose sensitivity. The GOx blox immobilized on the film surface by covalent bonding gave greater stability than those that were physically adsorbed. The composite hydrogel film demonstrated good biocompatibility and capability in stimulated macrophage growth, as well as Porphyromonas gingivalis growth, demonstrating potent antibacterial and anti-inflammatory properties.

Source link: https://europepmc.org/article/MED/35446748


Decreased surface defects and non-radiative recombination via the passivation of the halide perovskite film by 2-thiophenecarboxylic acid in triple-cation perovskite solar cells.

Organic-inorganic lead halide perovskite solar cells have piqued widespread study attention due to their high device stability and optoelectronic properties. We've used a simple molecule, 2-thiophenecarboxylic acid, to passivate the uncoordinated Pb 2+ on the perovskite film surface and improve the tensability at the perovskite/Spiro-OMeTAD interface herein. Also, TiCOOH solar cells with 2TiCOOH exhibit improved charge collection, increased J SC, FF, and excellent power conversion efficiency, as shown by their graphs. In addition, 2TiCOOH passivated solar cells have remarkably stable results, with less than 1% PCE decline after 100 days.

Source link: https://europepmc.org/article/MED/35438697


Fabrication of active whey Protein isolate/oleic acid emulsion based film as a promising bio-material for cheese packaging.

This research was designed to develop an active emulsion film based on whey protein isolate by adding oleic acid and green tea extract for cheese packaging. The result from the active film containing OA 0, 10, and 20% of incorporated GTE was 57. 39%, 48. 97, and 57. 24% of incorporated GTE after 5 h exposure in the acid food model system. The food model method affected the log reduction value of active emulsion film against bacteria. In addition, packed lactic coagulated cheese contained more phenolic component of GTE than processed spread cheese.

Source link: https://europepmc.org/article/MED/35502832


Fatty acid solvent extraction from palm oil using liquid–liquid film contactor: Mathematical model including mass transfer effects

The presence of free fatty acid in vegetable oils encourages undesirable organoleptic characteristics. FFA extraction by solvents is an alternative refining process at low temperatures that preserves natural phytonutrients that are thermically broken or distilled in deodorization. A model to forecast continuous co-current FFA extraction using ethanol as a solvent at low temperatures was designed and experimentally validated in this work. FFA's initial concentration, ethanol to oil mass flow rate, FFA initial measurement, and LLFC stages used on FFA removal were also investigated by experimental validation.

Source link: https://europepmc.org/article/MED/IND607679093


Comparison of acid volatile sulphide, metal speciation, and diffusive gradients in thin-film measurement for metal toxicity assessment of sediments in Lake Chaohu, China.

At three representative sampling sites, representative sampling samples were obtained in Lake Chaohu, revealing the horizontal and vertical distribution of AVS and SEM in Lake Chaohu, as well as three other typical groups of two-dimensional profiles of diffusive gradients in thin-film labile S. The key relationship of DGT-labile metals versus sediment toxicity analysis was investigated by the sandwich analysis of DGT-labile metals vs. metals speciation.

Source link: https://europepmc.org/article/MED/35489499


Formation of styrene maleic acid lipid nanoparticles (SMALPs) using SMA thin film on a substrate.

Despite the fact that membrane proteins play an important role in biological function and physiology, studying them is difficult due to a lack of biomimetic systems for the protein to remain in its native membrane environment. Dynamic light scattering, electron paramagnetic resonance, nuclear magnetic resonance, and transmission electron microscopy are among the traditional characterizations of these styrene maleic acid nanoparticles. SMALPs can be designed, characterized, and characterized by TEM without the need to make them in solution prior to imaging by simply adding POPC:POPG lipid vesicles to the SMA coated grid, as well as characterization by TEM.

Source link: https://europepmc.org/article/MED/35461801

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

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* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions