Results 11 to 20 of about 35,022 (246)

Espial: Electrochemical Soil pH Sensor for In Situ Real-Time Monitoring

open access: yesMicromachines, 2023
We present a first-of-its-kind electrochemical sensor that demonstrates direct real-time continuous soil pH measurement without any soil pre-treatment. The sensor functionality, performance, and in-soil dynamics have been reported.
Mohammed A. Eldeeb   +4 more
doaj   +1 more source

Kinetic Study of Subcritical Water Extraction of Scopoletin, Alizarin, and Rutin from Morinda citrifolia

open access: yesFoods, 2021
Noni fruits (Morinda citrifolia) are a source of phenolic bioactive compounds (scopoletin, alizarin, and rutin), which have antioxidant, antimicrobial, anticancer, and anti-inflammatory activities.
Roslina Jamaludin   +3 more
doaj   +1 more source

ON THE HISTORY AND MECHANISM OF ALIZARIN AND ALIZARIN RED S STAINS FOR CALCIUM [PDF]

open access: yesJournal of Histochemistry & Cytochemistry, 1969
Alizarin (madder) has been used in textile dyeing since early antiquity. In histology calcium-alizarin or calcium-alizarin red S compounds are often referred to as "lake" or "complex." Chemical and infrared spectroscopic data showed that these compounds are salts, not chelates.
H, Puchtler, S N, Meloan, M S, Terry
openaire   +2 more sources

Removal Efficiency of Textile Dyes from Aqueous Solutions Using Calcined Waste of Eggshells as Eco-friendly Adsorbent: Kinetic and Thermodynamic Studies [PDF]

open access: yesChemical and Biochemical Engineering Quarterly, 2021
This research investigates the removal of textile dyes (Rhodamine B and Alizarin Red S) from aqueous solution by a low-cost adsorbent prepared from eggshell waste.
R. Slimani   +8 more
doaj   +1 more source

Construction of Alizarin Conjugated Graphene Oxide Composites for Inhibition of Candida albicans Biofilms

open access: yesBiomolecules, 2020
Biofilm inhibition using nanoparticle-based drug carriers has emerged as a noninvasive strategy to eradicate microbial contaminants such as fungus Candida albicans.
Mohankandhasamy Ramasamy   +3 more
doaj   +1 more source

Pierre-Jean Robiquet

open access: yesEducación Química, 2018
Pierre-Jean Robiquet (1780-1840), a French pharmacist, made important contributions in the areas of mineral chemistry, mineral and vegetable pigments, and extractive and analytical chemistry.
Jaime Wisniak
doaj   +1 more source

Phytopigment Alizarin Inhibits Multispecies Biofilm Development by Cutibacterium acnes, Staphylococcus aureus, and Candida albicans

open access: yesPharmaceutics, 2022
Acne vulgaris is a common chronic inflammatory skin disease involving Cutibacterium acnes with other skin commensals such as Staphylococcus aureus and Candida albicans in the anaerobic and lipid-rich conditions of pilosebaceous units.
Jin-Hyung Lee   +4 more
doaj   +1 more source

Effects of Salt Stress and Inoculation Ratios in Cell Cultures of Rubia tinctorum L.

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2017
In this study, salt stress was implemented to callus and cell suspension cultures of Rubia tinctorum L. at 100 mM and 200 mM concentrations and the effects on fresh and dry weights (g), relative dry weight ratios, and alizarin and purpurin contents (mg/g
Pınar Nartop, Şeref Akay, Aynur Gürel
doaj   +1 more source

High performance liquid chromatography as a micro-destructive technique for the identification of anthraquinone red dyestuffs in cultural heritage objects

open access: yesChemistry Teacher International, 2023
This article describes two of the most common natural sources of red anthraquinones that have been used since antiquity for textile dyeing and as lake pigments, namely cochineal insect and the roots of Rubia and Relbunium plants.
Careaga Valeria P.   +3 more
doaj   +1 more source

Alizarin, an Agonist of AHR Receptor, Enhances CYP1A1 Enzyme Activity and Induces Transcriptional Changes in Hepatoma Cells

open access: yesMolecules, 2023
The phytopigment alizarin was previously characterized as an anti-tumor drug owing to its antioxidant or antigenotoxic activities. However, the safety of alizarin is currently still under dispute.
Shengxian Liang   +4 more
doaj   +1 more source

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