Results 31 to 40 of about 91,150 (261)

Rheological, mechanical, and cytotoxic properties of sustainable NR/glass fiber composites: prospects for advanced applications

open access: yesBMC Chemistry
Glass fiber is an inorganic reinforcement material widely used in rubber-based technological products. This study investigates the properties of natural rubber/glass fiber composites, focusing on their potential to enhance mechanical performance while ...
Doaa S. Mahmoud   +3 more
doaj   +1 more source

Particle size and kind of mica in synthesis of nontoxic bronze and gold pearlescent pigments based on nanoencapsulated hematite [PDF]

open access: yesJournal of Ultrafine Grained and Nanostructured Materials, 2015
Nano-encapsulated iron oxide in Zirconium oxide-coated mica pigments are thermally stable,innocuous to human health, non-combustible, and they do not conduct electricity.
Maryam Hosseini-Zori
doaj   +1 more source

Pigment Cells and Pigment Cell Tumors in Fish

open access: yesJournal of Investigative Dermatology, 1989
The three basic pigment cell types found in poikilothermic vertebrates, melanocytes (melanin-producing cells), erythrophores (red or yellow pigment cells), and iridophores (iridescence-producing cells), are derived from neural crest. Neoplasms of pigment cells in fish are also of three phenotypes, melanomas (melanophoromas), erythrophoromas, and ...
Masahito, Prince   +2 more
openaire   +2 more sources

Lanthanum cobaltite black pigments with perovskite structure

open access: yes, 2013
In this work La1-xCaxCoO3 (x = 0-0.4) pigments were synthesized by the polymeric precursor method with heat treatments at 700, 800 and 900 C for 4 h. The powders were characterized by colorimetry, UV-vis spectroscopy and powder X-ray diffraction (XRD ...
Soledade, L. E B   +10 more
core   +1 more source

Identification and characterization of a gene conferring stress resistance in Escherichia coli and cyanobacteria

open access: yesFEBS Open Bio, EarlyView.
Functional screening identified PcSyn14890, a cyanobacteria‐specific protein that enhances growth and stress resistance in E. coli and Synechocystis PCC6803. Although we expected it to function as a molecular chaperone, it was unable to protect against thermal aggregation of GAPDH.
Akiyo Yamada   +7 more
wiley   +1 more source

Evaluation of Some Conducting Polymers as Novel Antioxidants for Rubber Vulcanizates

open access: yesInternational Journal of Polymer Science, 2014
Natural rubber (NR) and styrene-butadiene rubber (SBR) formulations containing polyaromatic and polyheterocyclic amine homopolymers and copolymers were prepared.
M. A. Abd El-Ghaffar   +2 more
doaj   +1 more source

Preparation and evaluation of some nanocarbon (NC) based composites for optoelectronic applications

open access: yesScientific Reports, 2023
Polyaniline/nanocarbon (PANI/NC) nanocomposites have been prepared by in situ polymerization of aniline monomer in the presence of a stable colloidal solution of nanocarbon NC using ammonium persulfate as an initiator and silver ions (Ag+) as oxidizing ...
Noha Elhalawany   +2 more
doaj   +1 more source

Development of a Disease Activity Index for the Assessment of VEXAS Syndrome (VEXAS‐DAI)

open access: yesArthritis Care &Research, EarlyView.
Objective Vacuoles, E1 enzyme, X‐linked, autoinflammatory, somatic syndrome (VEXAS) syndrome is characterized by a complex spectrum of inflammatory and hematologic manifestations. Clinical research to identify effective therapies is urgently needed but is hindered by the lack of validated outcome measures.
Kevin Byram   +25 more
wiley   +1 more source

Using of Hyperbranched Poly(amidoamine) as Pretanning Agent for Leather

open access: yesInternational Journal of Polymer Science, 2013
Although chrome is considered as the major tanning agent in the production of all types of hides and leather worldwide, it represents a serious source of environmental pollution.
Amal Amin Ibrahim   +3 more
doaj   +1 more source

Influence of Alkaline Treatment on Structural Modifications of Chlorophyll Pigments in NaOH—Treated Table Olives Preserved without Fermentation

open access: yesFoods, 2020
Alkaline treatment is a key stage in the production of green table olives and its main aim is rapid debittering of the fruit. Its action is complex, with structural changes in both the skin and the pulp, and loss of bioactive components in addition to ...
Marta Berlanga-Del Pozo   +2 more
doaj   +1 more source

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