Results 71 to 80 of about 155,615 (245)

Influence of OH- concentration on the illitization of kaolinite at high pressure [PDF]

, 2011
The products of hydrothermal reactions of kaolinite at 300°C and 1000 bars were studied in KOH solutions covering an OH- concentration, [OH-], of 1M to 3.5M. XRD patterns indicated a notable influence of the [OH-] on the reaction.
Becerro Nieto, Ana Isabel, Escudero, A., Mantovani, Marco   +2 more
core   +1 more source

From plant to fabric: Environmental opportunities associated with annatto dye for sustainable development in the textile industry

Coloration Technology, EarlyView.
Abstract Natural dyes are compounds that occur naturally in several organisms and are classified based on chemical structure and application method. The literature cites several natural dyes used in industrial transformation processes. Annatto dye is used in the food industry, and its biological pigment is extracted from the annatto seed. However, this
Marcel Jefferson Gonçalves, Tania Maria Costa, Karine Thaise Rainert, Vera Lúcia Vogel Faustino dos Santos, Ivonete Oliveira Barcellos, Lorena Benathar Ballod Tavares   +5 more
wiley   +1 more source

Linking forest cover, soil erosion and mire hydrology to late-Holocene human activity and climate in NW Spain [PDF]

, 2014
This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 3.0 License (http://www.creativecommons.org/licenses/by-nc/3.0/) which permits non-commercial use, reproduction and distribution of the work without further ...
Aira Rodríguez MJ, Benito E, Carrión Y, Cheburkin AK, Clymo RS, Costa Casais M, FAO, Fægri K, García Salinas F, Goeury C, Grimm EC, Grimm EC, Innes JB, Martínez Cortizas A, Rochette Cordeiro AM, Siiriäinen A, Smith AG, Starkel L, Taboada Castro MT, Taboada Castro MT, Van Andel TH, Van Geel B, Van Geel B, Vánky K   +23 more
core   +1 more source

Citrate and Polyvinylpyrrolidone Stabilized Silver Nanoparticles as Selective Colorimetric Sensor for Aluminum (III) Ions in Real Water Samples [PDF]

, 2020
The use of silver nanoparticles stabilized with citrate and polyvinylpyrrolidone as a sensor for aluminum ions determination is proposed in this paper. These non-functionalized and specific nanoparticles provide a highly selective and sensitive detection
López Pérez, Germán, Martín Valero, María Jesús, Prado Gotor, Rafael, Román Hidalgo, Cristina, Ruiz del Portal Vázquez, Paula   +4 more
core   +1 more source

Fatigue behaviour of root filled teeth: The role of endodontic sealers and restorative techniques

European Journal of Oral Sciences, EarlyView.
Abstract This in vitro study aimed to evaluate the fatigue behaviour of root canal treated teeth, filled with either AH Plus Jet (AHP) or AH Plus Bioceramic Sealer (AHPB) and rehabilitated with either mesio‐occlusal‐distal (MOD) restorations (direct resin composite) or endocrowns (indirect resin composite).
Andressa Weber Vargas, Rafaela Oliveira Pilecco, Pablo Machado Soares, Êmile de Moraes, Gabriel Kalil Rocha Pereira, Renata Dornelles Morgental   +5 more
wiley   +1 more source

Simultaneous Determination of Glucose and Cholesterol in Milk Samples by Means of a Screen-Printed Biosensor and Artificial Neural Networks

Bioengineering
In the present work, a bienzymatic voltammetric biosensor is reported for the simultaneous quantification of glucose and cholesterol in flavored milk samples with a single device.
Jessica Torres-Gámez, José A. Rodríguez, María Elena Páez-Hernández, Carlos A. Galán-Vidal   +3 more
doaj   +1 more source

Micrografía cuantitativa y perfiles de HPLC y FTIR de Melissa officinalis y Nepeta cataria (Lamiaceae) de Argentina [PDF]

, 2014
Melissa officinalis L., so called "Melissa" or "Toronjil", is a perennial aromatic herb, whose leaves are used in traditional medicine as a carminative, digestive and sedative, both in simple as in mixtures. Meanwhile, Nepeta cataria L., commonly called "
Camí, Gerardo Enrique, del Vitto, Luis Angel, Gette, Maria de Los Angeles, Marchevsky, Eduardo Jorge, Petenatti, Elisa Margarita, Petenatti, Marta E., Popovich, Mariana C.   +6 more
core  

Development of an analytical model for the extraction of manganese from marine nodules [PDF]

, 2019
Multivariable analytical models provide a descriptive (albeit approximate) mathematical relationship between a set of independent variables and one or more dependent variables.
Castillo Segura, Jonathan Alejandro, Hernández Avendaño, Pía Carolina Andrea, Navarra Lafontaine, Alessandro, Saldaña Pino, Manuel, Toro Villarroel, Norman Rodrigo, Trigueros Tornero, Emilio   +5 more
core   +2 more sources

Commercial clays in cosmetic formulations for hair care: Characterization and application to improve the mechanical properties of hair fibre

International Journal of Cosmetic Science, EarlyView.
The shampoo and conditioner bar formulations enhanced hair gloss, promoting softness, improved cuticle alignment, and effective protection of hair shafts against external aggressors. Findings from mechanical properties measurements indicate that the clay‐containing formulations enhance the mechanical strength of hair, contributing to stronger and more ...
João Pedro Gonçalves de Souza Soares, Melânia Lopes Cornélio, Fausthon Fred da Silva   +2 more
wiley   +1 more source

Surface modification after ethanol wet milling: A comparison between pristine glasses produced from natural minerals and analytical grade raw materials [PDF]

, 2017
Four glass compositions were produced taking into account different theoretical Leucite (KAlSi2O6)/Bioglass 45S5 (45% SiO2, 24.5% Na2O, 24.5% CaO, 6% P2O5) ratios using analytical grade reagents only; and replacing some of the reagents by natural ...
Rodríguez Aguado, Elena, Rodríguez Castellón, Enrique, Stábile, Franco Matías, Volzone, Cristina   +3 more
core   +1 more source