Results 31 to 40 of about 109,053 (259)

Evaluation of Alpaca Yarns Dyed with Buddleja Coriaceous Dye and Metallic Mordants

Fibers
The objective of this research was to evaluate the effect of dye obtained from Buddleja coriacea and metallic mordants on the chromatic properties, textile characteristics, spectral profiles, and color stability in alpaca fibers.
Arturo Quispe-Quispe, Franklin Lozano, Luz María Pinche-Gonzales, Fulgencio Vilcanqui-Perez   +3 more
doaj   +1 more source

Adsorptive colorimetric determination of chromium(VI) ions at ultratrace levels using amine functionalized mesoporous silica

Scientific Reports, 2022
There is an urgent need for a rapid, affordable and sensitive analytical method for periodic monitoring of heavy metals in water bodies. Herein, we report for the first time a versatile method for ultratrace level metal detection based on colorimetric ...
Rajesh Ghosh, Saranya Gopalakrishnan, T. Renganathan, S. Pushpavanam   +3 more
doaj   +1 more source

UV Curing Effect(s) on Colorimetric Properties of Test Specimens Created via Stereolithography

Tehnički Glasnik, 2022
This paper presents the results of observing colorimetric change obtained by the impact of UV curing. The test specimens were made by stereolithographic process from photopolymer materials with the addition of cyan, magenta, and yellow dye.
Marko Maričević, Miroslav Mikota, Krunoslav Hajdek   +2 more
doaj   +1 more source

Goniochromism of Multicolor and Interference Pigments Under Varying Illumination Conditions

Applied Sciences
Color results from the interaction of objects with varying wavelengths of light and the human visual system’s perception under different illumination conditions.
Mirica Karlovits, Blaž Likozar, Uroš Novak   +2 more
doaj   +1 more source

Paper-Based In-Situ Gold Nanoparticle Synthesis for Colorimetric, Non-Enzymatic Glucose Level Determination

Nanomaterials, 2020
Due to its properties, paper represents an alternative to perform point-of-care tests for colorimetric determination of glucose levels, providing simple, rapid, and inexpensive means of diagnosis. In this work, we report the development of a novel, rapid,
Tomás Pinheiro, João Ferrão, Ana C. Marques, Maria J. Oliveira, Nitin M. Batra, Pedro M. F. J. Costa, M. Paula Macedo, Hugo Águas, Rodrigo Martins, Elvira Fortunato   +9 more
doaj   +1 more source

Pyrophosphate-Enhanced Oxidase Activity of Cerium Oxide Nanoparticles for Colorimetric Detection of Nucleic Acids

Sensors, 2021
In recent years, cerium oxide (CeO2) nanoparticles (NPs) have drawn significant attention owing to their intrinsic enzyme mimetic properties, which make them powerful tools for biomolecular detection.
Seokhwan Kim, Jinjoo Han, Heeseok Chung, Yong-Keun Choi, Ayemeh Bagheri Hashkavayi, Yu Zhou, Ki Soo Park   +6 more
doaj   +1 more source

Colorimetric Analysis of Hibiscus Beverages and their Potential Antioxidant Properties

Plant Foods for Human Nutrition, 2018
In food industry, roselle beverages and their subproducts could be functional ingredients since they are an excellent source of bioactive compounds with improved performance due to their important anthocyanins content. The aim of this study was to analyze anthocyanin content and antioxidant properties of aqueous infusions elaborated with color ...
Camelo Méndez, G. A., Vanegas Espinoza, P. E., Escudero Gilete, María Luisa, Heredia Mira, Francisco José, Paredes López, O., Del Villar Martínez, A. A.   +5 more
openaire   +4 more sources

CEACAM1 participation in breast cancer progression

Molecular Oncology, EarlyView.
In invasive breast cancer (BC), CEACAM1 shifts from an apical to a uniform membranous/cytoplasmic pattern, or is lost, as tumors dedifferentiate, inversely tracking the Ki‐67 proliferative index. In MCF‐7 cells, only CEACAM1‐4L suppresses proliferation, repressing cell cycle and growth factor genes.
Mykola Lyndin, Irina Kube‐Golovin, Anatolii Romaniuk, Gunther Wennemuth   +3 more
wiley   +1 more source

Acute caffeine treatment protects the developing retina from ischemia‐induced cell death

FEBS Open Bio, EarlyView.
Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento, Danniel Pereira‐Figueiredo, Gabriella Grossi de Lima Dias, Gabriel Ferreira dos Santos, Mariana Rodrigues Pereira, Rafael Brito, Karin C Calaza   +6 more
wiley   +1 more source

Legibility of Sans-Serif Typeface on Different Paper Grades Made from Invasive Alien Plant Species

Applied Sciences
Invasive alien plant species (IAPS) may cause threats to native biodiversity in ecosystems. Researchers have been investigating all the possible ways that they can be used effectively for other purposes.
Klementina Možina, Dorotea Kovačević, Klemen Možina   +2 more
doaj   +1 more source