Results 31 to 40 of about 49,127 (287)

Synthesis and characterization of new polyamides derived from alanine and valine derivatives

open access: yesChemistry Central Journal, 2012
Background Many efforts have been recently devoted to design, investigate and synthesize biocompatible, biodegradable polymers for applications in medicine for either the fabrication of biodegradable devices or as drug delivery systems.
El-Faham Ayman   +2 more
doaj   +1 more source

Pharmacological activity of new imidazole-4,5-dicarboxylic acid derivatives in dopaminergic transmission suppression ttests in mice and rats [PDF]

open access: yesResearch Results in Pharmacology, 2020
Objective: To study the antiparkinsonian activity of new 1,2-substituted imidazole-4,5-dicarboxylic acids in dopaminergic transmission suppression tests in mice and rats.
Ekaterina E. Yakovleva   +4 more
doaj   +3 more sources

Modeling the gas-particle partitioning of secondary organic aerosol: the importance of liquid-liquid phase separation [PDF]

open access: yes, 2012
The partitioning of semivolatile organic compounds between the gas phase and aerosol particles is an important source of secondary organic aerosol (SOA).
Seinfeld, J. H., Zuend, A.
core   +3 more sources

Liquid-liquid phase separation and morphology of internally mixed dicarboxylic acids/ammonium sulfate/water particles [PDF]

open access: yes, 2012
Knowledge of the physical state and morphology of internally mixed organic/inorganic aerosol particles is still largely uncertain. To obtain more detailed information on liquid-liquid phase separation (LLPS) and morphology of the particles, we ...
Krieger, U. K.   +4 more
core   +1 more source

Extraction of Organic Acids with Hydrophobic Eutectic Mixtures Containing Terpenoids and Decanoic Acid

open access: yesJournal of Chemical Engineering of Japan, 2023
In this study, we prepared eutectic mixtures containing decanoic acid as the hydrophobic hydrogen bonding donor, a lidocaine analog, and quaternary ammonium salt or terpenoid as the hydrophobic hydrogen bonding acceptor.
Michiaki Matsumoto   +2 more
doaj   +1 more source

Chemical Characterization of Water-Soluble Organic Acids in Size-Segregated Particles at a Suburban Site in Saitama, Japan

open access: yesAsian Journal of Atmospheric Environment, 2009
Saturated n-dicarboxylic acids (C2-C7, C9), unsaturated dicarboxylic acids (maleic, fumaric, phthalic acid), ketocarboxylic acids (pyruvic, glyoxylic acid), and dicarbonyls (glyoxal, methylglyoxal) were determined in size-segregated samples with a high ...
Linfa Bao , Kazuhiko Sakamoto
doaj   +1 more source

Recent advances in the formation of phase inversion membranes made from amorphous or semi-crystalline polymers [PDF]

open access: yes, 1996
Structural characteristics in membranes formed by diffusion induced phase separation processes are discussed. Established theories on membrane formation from ternary systems can be extended to describe the effects of high or low molecular weight ...
Beerlage, M.A.M.   +5 more
core   +2 more sources

RB-TnSeq elucidates dicarboxylic-acid-specific catabolism in β-proteobacteria for improved plastic monomer upcycling

open access: yesApplied and Environmental Microbiology
Dicarboxylic acids are key components of many polymers and plastics, making them a target for both engineered microbial degradation and sustainable bioproduction. In this study, we generated a comprehensive data set of functional evidence for the genetic
Allison N. Pearson   +13 more
doaj   +1 more source

The thermodynamic landscape of carbon redox biochemistry [PDF]

open access: yes, 2018
Redox biochemistry plays a key role in the transduction of chemical energy in all living systems. Observed redox reactions in metabolic networks represent only a minuscule fraction of the space of all possible redox reactions.
Aspuru-Guzik, Alán   +7 more
core   +1 more source

Summer and winter variations of dicarboxylic acids, fatty acids and benzoic acid in PM2.5 in Pearl Delta River Region, China [PDF]

open access: yesAtmospheric Chemistry and Physics, 2011
Ground-based PM2.5 samples collected at four different sites in Pearl River Delta region (PRD) during winter and summer (from 14 December 2006 to 28 January 2007 in winter and from 4 July to 9 August 2007 in summer) were analyzed for 30 water-soluble ...
K. F. Ho   +6 more
doaj   +1 more source

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