Results 51 to 60 of about 197,794 (316)

Existence of nanoparticles in azurite and malachite pigments - Raman spectroscopy and X-ray diffraction studies

open access: yes, 2017
The lightness of the color of mineral pigments changes with its particle size. We investigated the Raman spectra of azurite pigments of several particle-size groups, ranging from similar to 5 to similar to 110 mu m.
양인상
core   +1 more source

Pigments

open access: yes, 2023
Synthetic pigments utilized in food and other allied industries are basically petrochemical-originated chemical dyes. Due to their chemical or petro-originated nature, they impose adverse impacts on human and environment health that drive to accumulate ...
Sridhar, Kandi   +17 more
core   +1 more source

Bio‐Inspired Synthesis of Macroporous Single Crystal Particles as Scattering Agents

open access: yesAdvanced Functional Materials, EarlyView.
A general strategy is presented that delivers unique, single‐crystal microparticles that combine submicron macroporosity and uniform particle shapes. A bioinspired approach is used to occlude three distinct types of additives – polystyrene microspheres, polymer vesicles and amino acids – within calcite single crystals, and subsequent thermal annealing ...
Stephanie E. Foster   +11 more
wiley   +1 more source

Oriented immobilization of polyclonal IgG onto natural biopolymer-alginate blend beads for enhanced HCV capture

open access: yesScientific Reports
In the present investigation, specific polyclonal antibody responses against hepatitis C virus (HCV) E2 proteins (HCV Ab) were developed in goats and immobilized onto four natural polymeric scaffold beads: alginate (A), alginate-carrageenan (AC ...
M. A. Abd El-Ghaffar   +2 more
doaj   +1 more source

Structures of Astaxanthin and Their Consequences for Therapeutic Application

open access: yesInternational Journal of Food Science, 2020
Reactive oxygen species (ROS) are continuously generated as a by-product of normal aerobic metabolism. Elevated ROS formation leads to potential damage of biological structures and is implicated in various diseases. Astaxanthin, a xanthophyll carotenoid,
Tatas Hardo Panintingjati Brotosudarmo   +3 more
doaj   +1 more source

Polyvinyl Alcohol Food Packaging System Comprising Green Synthesized Silver Nanoparticles

open access: yesIndonesian Journal of Chemistry, 2020
Green synthesis of silver nanoparticles (AgNPs) using aqueous Moringa extract and their incorporation in polyvinyl alcohol (PVA) as food packaging materials have been performed.
Ahmed Elsayed Abdelhamid   +3 more
doaj   +1 more source

Characterisation of silicon, zirconium and aluminium coated titanium dioxide pigments recovered from paint waste

open access: yes, 2019
Titanium dioxide (TiO2) is the major white pigment used by the paint industry. However, the production of TiO2is associated with a high carbon footprint.
Karlsson, Mikael C. F.,   +23 more
core   +1 more source

Melanin's Role in Balancing Mechanical Strength and Reproductive Output in Environmentally Stressed Fungal Spores

open access: yesAdvanced Functional Materials, EarlyView.
Melanin content directly controls fungal spore mechanical properties, with pigmented spores achieving rupture forces two orders of magnitude higher than hyaline spores. Environmental stress drives this quantity‐quality tradeoff; stressed species invest energy in melanin‐reinforced, mechanically superior thick‐walled, super‐hydrophobic spores, while ...
Atul Agrawal, Steven E. Naleway
wiley   +1 more source

Ultrasonic Treatment Enhanced Surface Modification of Titanium Oxide by Tailor-Made Surface-Active Polymers

open access: yesEurasian Chemico-Technological Journal, 2009
The surface modification of titanium dioxide in aqueous dispersions of specially tailor-made periodic acrylic acid/isobutylene copolymers, poly(acrylic acid)/polystyrene graft copolymers, and hydrophobically modified polyethyleneoxide urethane (HEUR) by
N. Bulychev   +4 more
doaj   +1 more source

Egyptian propolis extract for functionalization of cellulose nanofiber/poly(vinyl alcohol) porous hydrogel along with characterization and biological applications

open access: yesScientific Reports, 2023
Bee propolis is one of the most common natural extracts and has gained significant interest in biomedicine due to its high content of phenolic acids and flavonoids, which are responsible for the antioxidant activity of natural products. The present study
Safaa Saleh   +5 more
doaj   +1 more source

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