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PubMed Journals Articles About "Cosmetic Pigments Market Composition Organic Inorganic Type Special" RSS

08:39 EST 12th December 2019 | BioPortfolio

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Showing "Cosmetic Pigments Market Composition Organic Inorganic Type Special" PubMed Articles 1–25 of 20,000+

Surface enhanced Raman scattering of inorganic microcrystalline art pigments for systematic cultural heritage studies.

The present work summarizes our experimental data on Surface-enhanced Raman scattering (SERS) of inorganic pigments. The effect of pigment type on Raman scattering enhancement was studied. The paper also describes the features of the SERS-active substrates used as well as the methods of sample preparation for SERS analysis of the pigments. The results of successful application of SERS and micro-SERS for art pigments identification in the canvas paintings and icons have been demonstrated. The techniques allo...


Increase in subjective well-being and psychological health after application of C8-silk lipoamino acid functionalised pigments included in a foundation.

The aim of this study was to evaluate the effects of two foundations before (D0) and after 5 days of application (D6) on psycho-physiological parameters in order to compare C8-silk lipoamino acid functionalised pigments (FA) versus pure pigments (FP).

Human Ocular Surface Particulate Composition in the Clinical Versus Home Environment.

Our eyes are chronically exposed to airborne particulate matter shown to adversely affect the ocular surface. This research examines size, type (organic vs. inorganic), and elemental composition of particles recovered from the ocular surface in 2 environments and their associations with dry eye (DE) metrics.


Design of Multifunctional Fluorescent Hybrid Materials Based on SiO Materials and Core-Shell Fe O @SiO Nanoparticles for Metal Ion Sensing.

Hybrid fluorescent materials constructed from organic chelating fluorescent probes and inorganic solid supports by covalent interactions are a special type of hybrid sensing platform that has gained much interest in the context of metal ion sensing applications owing to their excellent advantages, recyclability, and solubility/dispersibility in particular, as compared with single organic fluorescent molecules. In recent decades, SiO materials and core-shell Fe O @SiO nanoparticles have become important inor...

Hybrid metal-organic nanoflowers and their application in biotechnology and medicine.

Nanoflowers - new nanostructures - have aroused the interest of scientists due to the topographic features of nanolayers, the special location of which allows a higher surface-to-volume ratio compared to classic spherical nanoparticles, which significantly increases the efficiency of surface reactions for nanoflowers. The main purpose of these types of nanomaterials is their use as enzyme stabilizers. To facilitate the functioning of enzymes under different conditions, organic-inorganic hybrid nanomaterials...

Organic or Inorganic Nitrogen and Rhizobia Inoculation Provide Synergistic Growth Response of a Leguminous Forb and Tree.

Our objective was to better understand how organic and inorganic nitrogen (N) forms supplied to a tree, , and a perennial forb, , affected plant growth and performance of their symbiotic, N-fixing rhizobia. In one experiment, we tested five sources of N [none; three inorganic forms (ammonium, nitrate, ammonium-nitrate); and an organic form (arginine)] in combination with or without rhizobia inoculation. We measured seedling morphology, allometry, nodule biomass, and N status. A second experiment explored co...

A Three-dimensional M3AB-type Hybrid Organic-inorganic Antiperovskite Ferroelectric: C3H7FN3SnCl6Cl.

Since the first perovskite CaTiO3 was discovered in 1839s, the development of perovskite has a history of 180 years. The emergence of solar cells-(CH3NH3)PbI3 has set off the trend of hybrid organic-inorganic perovskite (HOIP) materials. Since then, various HOIPs have sprung up and been widely used in various material devices. Among them, HOIP ferroelectrics have gained widespread attention. However, antiperovskite, as a twin brother of perovskite, has been neglected although it has similar structure with p...

Hole Boosted Cu(Cr,M)O2 Nanocrystals for All-Inorganic CsPbBr3 Perovskite Solar Cells.

All-inorganic CsPbBr3 perovskite solar cell (PSC) is a promising solution to balance the high efficiency and poor stability of state-of-the-art organic-inorganic PSCs. Through setting inorganic hole-transporting layers at perovskite/electrode interface undoubtedly reduces charge carrier recombination without sacrificing superiority in ambient air atmosphere. Herein, M-substituted, p-type inorganic Cu(Cr,M)O2 (M = Ba2+, Ca2+ or Ni2+) nanocrystals with enhanced hole-transporting characteristics by increasing ...

Quantifying the dynamic evolution of organic, inorganic and biological synergistic fouling during nanofiltration using statistical approaches.

The dynamic process of membrane fouling was characterized during relatively long-term (30 d) continuous nanofiltration (NF) of a real wastewater secondary effluent, with the roles of organic, inorganic and biological foulants quantified via statistical analyses. The analyses were based on time-series data of physical properties (morphology, roughness, hydrophilicity and charge), chemical compositions (X-ray and infrared responses) and biomass (adenosine triphosphate, ATP) on the membrane surface during foul...

The grouping and assessment strategy for organic pigments (GRAPE): Scientific evidence to facilitate regulatory decision-making.

This article presents the Grouping and Assessment Strategy for Organic Pigments (GRAPE). GRAPE is driven by the hypotheses that low (bio)dissolution and low permeability indicate absence of systemic bioavailability and hence no systemic toxicity potential upon oral exposure, and, for inhalation exposure, that low (bio)dissolution (and absence of surface reactivity, dispersibility and in vitro effects) indicate that the organic pigment is a 'poorly soluble particle without intrinsic toxicity potential'. In G...

Source apportionment of urban PM in Barcelona during SAPUSS using organic and inorganic components.

Source apportionment of atmospheric PM1 is important for air quality control, especially in urban areas where high mass concentrations are often observed. Chemical analysis of molecular inorganic and organic tracer compounds and subsequently data analysis with receptor models give insight on the origin of the PM sources. In the present study, four source apportionment approaches were compared with an extended database containing inorganic and organic compounds that were measured during an intensive sampling...

Facile Synthesis of Titanium Phosphates from Ilmenite Mineral Sand: Potential White Pigments for Cosmetic Applications.

Ilmenite mineral sand was used to synthesize titanium bismonohydrogen orthophosphate monohydrate, Ti(HPO)·HO, and titanium phosphate, TiPO, two white pigments suitable in cosmetic applications. Ti(HPO)·HO was obtained after digesting ilmenite in 85% phosphoric acid at 150 °C for 5 hours. On standing, unreacted ilmenite and white Ti(HPO)·HO solid separated into two layers and Ti(HPO)·HO was calcined at 900 °C to obtain the crystalline TiPO. Chemical and morphological characteristics were investigated u...

Organic-inorganic nanoflowers: from design strategy to biomedical applications.

Organic-inorganic hybrid nanoflowers (NF) with sizes or features on a nanoscale are a class of flower-shaped nanomaterials self-assembled from metal ions and organic components. Here, to be more specific, the organic components mainly refer to biomolecules ranging from proteins, peptides, and amino acids to DNA/RNA. Beyond their pleasing aesthetics, their unique properties and integrated functions have attracted widespread interest and made them promising candidates in the application of biomedical areas. G...

Selenium and cadmium in bioaccessible fraction of organic weaning food: Risk assessment and influence of dietary components.

The tendency of some sectors of the population to consume organic food has also come to include baby food. Nevertheless, it is necessary to develop studies to support the true nutritional and toxicological value of these products, making special emphasis in several trace elements. To our knowledge, no studies have been conducted on this type of organic food.

Exploration of chiral organic-inorganic hybrid semiconducting lead halides.

Organic-inorganic lead halides have recently emerged as promising alternatives to the conventional optoelectronic materials considering their intriguing physical properties. However, organic-inorganic lead halides featuring chirality are seldom explored. Here, a pair of enantiomorphic organic-inorganic hybrid semiconducting lead halides, (R-C5H14N2)PbBr4 (1R) and (S-C5H14N2)PbBr4 (2S), were successfully acquired with the templating of chiral amines. These compounds adopt distinct one-dimensional infinite qu...

The diagnosis of cosmetic contact dermatitis: a study using standard, cosmetic, and hair cosmetic batteries.

Inorganic ions on hemozoin surface provide a glimpse into Plasmodium biology.

In malaria, Plasmodium parasites produce hemozoin (Hz) as a route to detoxify free heme released from the catabolism of hemoglobin. Hz isolated from the parasites is encapsulated in an organic layer constituted by parasite and host components. This organic coating may play a role in Hz formation and in the immunomodulatory properties attributed to Hz, and they may influence the mode of action of antimalarials that block Hz formation. In this work, we analyze the organic layer adhered to Hz, and find Na, Cl,...

1-D Chain Tungstotellurate Hybrids Constructed from Organic-Ligand-Connecting Iron-Lanthanide Heterometal Encapsulated Tetrameric Polyoxotungstate Units.

A family of inorganic-organic hybrid one-dimensional (1-D) chain iron-lanthanide (Ln) heterometal encapsulated tungstotellurates [HN(CH)]KNa[Ln(Ac)(HO)Fe(Hpdca)(B-β-TeWO)][Ln(HO)Fe(Hpdca)(B-β-TeWO)]·50HO [Ln = Eu (), Tb (), Dy (), Er (), HAc = acetate acid, Hpdca = 2,5-pyridinedicarboxylic acid] were prepared using a facile "one-pot" reaction. The molecular structures of - consist of an intriguing organic-ligand-connecting Fe-Ln heterometal inserted tetrameric unit [Ln(Ac)(HO)Fe(Hpdca)(B-β-TeWO)][Ln(HO)...

Adsorption and fractionation of Pt, Pd and Rh onto inorganic microparticles and the effects of macromolecular organic compounds in seawater.

Adsorption and fractionation of Pt, Pd and Rh (defined here as platinum group elements, PGEs) onto the representative inorganic microparticles, including FeO, MnO, CaCO, SiO, AlO and kaolinite in seawater were investigated. The effects of macromolecular organic compounds (MOCs) as the representatives of organic matter, including humic acids (HA), bovine serum albumin (BSA) and carrageenan, on the adsorption were also studied considering that organic matter is ubiquitous in seawater and indispensable to mari...

Finding possible pharmacological effects of identified organic compounds in medicinal waters (BTEX and phenolic compounds).

Medicinal thermal waters consist of a mixture of different organic and inorganic compounds. Traditionally, these waters are only characterized and classified by their inorganic composition; however, the bioavailability of the majority of these inorganic compounds is limited. Many authors investigate the organic fractions of thermal waters. These authors propose that these compounds have a potential effect on health. To elucidate the underlying mechanisms, it is crucial to know the composition of the organic...

Stepwise approach of development of dermo-cosmetic products in healthy and atopic dermatitis (AD) paediatric population: safety evaluation, clinical development and post-market surveillance.

Paediatric skin, considered sensitive, and infant skin, more susceptible to percutaneous toxicity, require specially formulated cosmetic products. As recently shown, early use of emollients in infants "at risk" of developing atopic dermatitis can reduce the incidence of this condition, establishing the importance of preventative use of dermo-cosmetics in this population. Development of dermo-cosmetic products for this specific population should especially ensure tolerance and safety. In absence of good clin...

Multivariate Metal-Organic Frameworks for the Simultaneous Capture of Organic and Inorganic Contaminants from Water.

We report a new water-stable multivariate (MTV) Metal-Organic Framework (MOF) prepared by combining two different oxamide-based metalloligands derived from the natural amino acids L-serine and L-methionine. This unique material features hexagonal channels decorated with two types of flexible and functional "arms" (-CH2OH and -CH2CH2SCH3) capa-ble to act, synergistically, for the simultaneous and efficient removal of both inorganic (heavy metals like Hg2+, Pb2+ and Tl+) and organic (dyes such as Pyronin Y, A...

Tailored Phase Transformation of CsPbI2Br Films by Copper (II) Bromide for High-Performance All-Inorganic Perovskite Solar Cells.

All-inorganic based perovskites by replacing the organic component with cesium (Cs) have drawn more attentions owing to their intrinsic inorganic stability. However, the cell efficiency in all-inorganic perovskite solar cells is still far below that in organic-inorganic hybrid perovskite based devices. Here, we develop a new strategy to mediate the CsPbI2Br crystallization by directly doping the copper (II) bromide (CuBr2) into a perovskite precursor. The incorporation of CuBr2 plays a role in retarding the...

In-situ technical study of modern paintings - Part 2: Imaging and spectroscopic analysis of zinc white in paintings from 1889 to 1940 by Alessandro Milesi (1856-1945).

We present a multi-analytical in situ non-invasive study of a series of emblematic paintings by Alessandro Milesi (1856-1945) from the collection of the International Gallery of Modern Art Ca' Pesaro in Venice. Eight paintings dated from 1897 to 1910 were studied with imaging and spectroscopic techniques. White pigments were characterized by a combination of X-ray fluorescence spectroscopy which traced the presence of zinc-based pigments in Milesi's paintings, Raman Spectroscopy, Laser Induced Fluorescence ...

Separation of oil sands process water organics and inorganics and examination of their acute toxicity using standard in-vitro bioassays.

Oil sands process water (OSPW) contains complex components of inorganics and organics. This is the first study that separated OSPW inorganic and organic fractions and examined their relative acute toxicity when compared with the original whole OSPW using an in-vitro cell-based bio-indicator system. The separation of OSPW inorganic and organic fractions would be conducive to the understanding of the toxic contribution of organic and inorganic fractions as well as the identification and treatment of organic f...


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