Results 111 to 120 of about 154,283,390 (201)

The Impact of Iron‐Containing Particulate Matter on the Chemical Degradation of Cellulose Acetate in Collections

open access: yesChemPlusChem, Volume 91, Issue 11, November 2026.
Artificial particulate matter with high iron content and varied iron speciation accelerates cellulose acetate degradation, increasing chemical instability during aging. These findings identify a previously underexplored deterioration pathway and demonstrate that airborne pollutant composition can critically influence the preservation of historical ...
Francesca Azolini   +3 more
wiley   +1 more source

Spectrophotometry and Chromatography for Identification of Antioxidants and Accelerators in Rubber Mixtures

open access: yes, 1963
The difficulties encountered in the identification of antioxidants and accelerators in rubber mixtures are reviewed. A method of column chromatographic separation of components contained in the mixture extracts is discussed.
G. Bonomi, A. Fiorenza, R. Piacentini
core   +1 more source

Influence of Drying Methods on Phytochemical Retention of Moringa oleifera Leaves and Green Synthesis of Zinc Oxide Nanoparticles Using the Optimal Moringa oleifera Leaf Extract

open access: yesFood Science &Nutrition, Volume 14, Issue 11, November 2026.
Fresh Moringa oleifera leaves were evaluated under different drying conditions to identify the treatment with superior retention of bioactive compounds. The selected freeze‐dried extract was used for green synthesis of ZnO nanoparticles, which exhibited characteristic physicochemical properties, concentration‐dependent antioxidant and antibacterial ...
Tamanna Rahman   +4 more
wiley   +1 more source

OPTICAL CRYSTALS IN INFRARED INSTRUMENTATION

open access: yes, 1951
Author Institution: Department of Physics, Tufts CollegeThe use of optical crystals is becoming much more widespread, due principally to two factors: the ready availability of artificially grown crystals, and the increase of practical interest in the ...
Ballard, Stanley S.
core   +1 more source

The effect of calcium and magnesium on the aggregation of a purple phototrophic bacteria mixed consortium

open access: yesJournal of Chemical Technology &Biotechnology, Volume 101, Issue 11, Page 2301-2309, November 2026.
Abstract BACKGROUND An essential aspect of applying Purple Phototrophic Bacteria (PPB) technology for wastewater treatment is the biomass separation from the aqueous phase. Ca2+ and Mg2+ have been used to enhance the aggregation of different biological matrices. In this paper, the effect of Ca2+ and Mg2+ on the aggregation of a mixed culture of PPB was
Jairo M Carrillo‐Osorio   +1 more
wiley   +1 more source

Near-Infrared-Responsive Choline-Calix[4]arene-Gold Nanostructures for Potential Photothermal Cancer Treatment

open access: yes
The development of novel chemical approaches for the fabrication of gold nanostructures with localized surface plasmon resonance (LSPR) falling in the near-infrared (NIR) region is one challenging topic in nanomaterials science.
Massimo Camarda (13118716)   +11 more
core   +1 more source

Early Detection of Brown Rot Decay in Douglas-Fir and Southern Yellow Pine by Infrared Spectrophotometry [PDF]

open access: yes, 2007
Samples of Douglas-fir heartwood and southern yellow pine sapwood were incubated with several brown rot rungi and examined for decomposition as shown by weight losses (to 10%).
Gibson, David G.   +2 more
core  

Development of efficient visible-light active nanocrystalline carbon-TiO2 for environmental remediation

open access: yesDiscover Sustainability
This article presents the development of an efficient visible-light active Carbon-modified nanosized TiO2 (C-TiO2) photocatalyst for environmental remediation.
Manaswita Nag, Manorama V. Sunkara
doaj   +1 more source

A Multi‐Crosslinkable Methacrylated Alginate‐GelMa Bioink for Drop‐on‐Demand Bioprinting

open access: yesMacromolecular Bioscience, Volume 26, Issue 11, November 2026.
A multi‐crosslinkable methacrylated oxidized alginate–GelMA system enables precise drop‐on‐demand bioprinting by integrating tailored polymer functionality with tunable hydrogel properties. The designed macromolecular network combines photochemical, dynamic covalent, and ionic interactions to achieve printable, cytocompatible bioinks for advanced three‐
Tommi Bui   +9 more
wiley   +1 more source

Soil carbon storage and stability controlled by site properties more than forest management in a humid boreal forest

open access: yesSoil Science Society of America Journal, Volume 90, Issue 6, November/December 2026.
Abstract Soils of managed boreal forests are a significant carbon (C) reservoir, and maintaining or increasing their ability to store C could play an important role for climate change mitigation. We investigated the effects of forest logging through clearcut and partial cut compared to forest conservation on total soil C stocks, particulate organic ...
Véronique Rouleau   +4 more
wiley   +1 more source

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