This study aims to improve the biopharmaceutical, mechanical, and tableting properties of a poorly soluble drug, ibuprofen (IBP), by preparing amorphous solid dispersion (ASD) followed by a sustained‐release tablet formulation. A suitable polymer to develop an ASD system was chosen by utilizing the apparent solubility of IBP in various polymer ...
Ajam Uddin+8 more
wiley +1 more source
Acid zeta function and ajoint acid zeta function [PDF]
In this paper we set up the theory of acid zeta function and ajoint acid zeta function, based on the theory, we point out a reason to doubt the truth of the Riemann hypothesis and also as a consequence, we give out some new RH equivalences.
arxiv
Polymethacrylic acid functionalised with dihydroxy benzene as an adsorbent for the removal of Malachite Green dye [PDF]
J. Devakumar+3 more
openalex +1 more source
A pH Dual-Responsive Multifunctional Nanoparticle Based on Mesoporous Silica with Metal-Polymethacrylic Acid Gatekeeper for Improving Plant Protection and Nutrition [PDF]
Hua Pan+6 more
openalex +1 more source
Is Amino-Acid Homochirality Due To Asymmetric Photolysis In Space? [PDF]
Amino acids occurring in proteins are, with rare exceptions, exclusively of the L-configuration. Among the many scenarios put forward to explain the origin of this chiral homogeneity (i.e., homochirality), one involves the asymmetric photolysis of amino acids present in space, triggered by circularly polarized UV radiation.
arxiv
Comparative Characteristics of Polymethacrylic Acid Hydrogel Sorption Activity in Relation to Lanthanum Ions in Different Intergel Systems [PDF]
Т. K. Jumadilov+9 more
openalex +1 more source
Cytochrome b in Neurospora crassa Mitochondria
Cytochrome b was purified from Neurospora crassa mitochondria by means of chromatography on oleyl-polymethacrylic acid resin, chromatography on DEAE-cellulose and recycling gel filtration on Sephadex G-75, all steps being performed in a medium containing
H. Weiss, B. Ziganke
semanticscholar +1 more source
Are Strong Bronsted Acids Necessarily Strong Lewis Acids? [PDF]
The Broensted and Lowry acid base theory is based on the capacity of proton donation or acceptance (in the presence or absence of a solvent) whereas the Lewis acid base theory is based on the propensity of electron pair acceptance or donation. We explore through DFT calculation the obvious question whether these two theories are in conformity with each
arxiv
The Factors of the Classification of Protein Amino Acids [PDF]
In this work it is shown that three pairs of the factors appear to be the key, i.e. main factors of a natural classification of protein (canonical) amino acids within the amino acid (genetic) code. First pair: the factors of the habit of an amino acid molecule (size and polarity).
arxiv
Modeling of the formation of short-chain acids in propane flames [PDF]
In order to better understand their potential formation in combustion systems, a detailed kinetic mechanism for the formation of short-chain monocarboxylic acids, formic (HCOOH), acetic (CH3COOH), propionic (C2H5COOH) and propenic (C2H3COOH)) acids, has been developed. Simulations of lean (equivalence ratios from 0.9 to 0.48) laminar premixed flames of
arxiv