Results 11 to 20 of about 2,997,351 (334)

Advanced Fractionation of Kraft Lignin by Aqueous Hydrotropic Solutions

open access: yesMolecules, 2023
Lignin is an underutilized high-potential biopolymer that has been extensively studied over the past few decades. However, lignin still has drawbacks when compared with well-known petroleum-based equivalents, and the production of tailored lignin ...
Rita Gaspar   +2 more
doaj   +1 more source

Effect of Microwave Plasma Pre-Treatment on Cotton Cellulose Dissolution

open access: yesMolecules, 2022
The utilization of cellulose to its full potential is constrained by its recalcitrance to dissolution resulting from the rigidity of polymeric chains, high crystallinity, high molecular weight, and extensive intra- and intermolecular hydrogen bonding ...
Shaida S. Rumi   +3 more
doaj   +1 more source

THE MOLECULAR WEIGHT OF ANTIBODIES [PDF]

open access: yesJournal of Experimental Medicine, 1937
1. Highly purified rabbit Type III pneumococcus anticarbohydrate proved to be homogeneous in the ultracentrifuge and its sedimentation constant, 7.0·10–13, did not differ from that of the principal component of normal rabbit globulin or of immune rabbit globulin containing up to 50 per cent of anti-egg albumin.
Kai O. Pedersen, Michael Heidelberger
openaire   +3 more sources

Effect of Degumming Methods on Structure and Properties of Regenerated Antheraea Pernyi Silk Fibroin Films

open access: yesJournal of Natural Fibers, 2022
The extraction of fibroin (degumming) from the silk fibers impacts the properties of silk fibroin. However, the effect of the degumming method on structures and properties of regenerated Antheraea pernyi silk fibroin (ASF) biomaterials has not been ...
Hui Yang   +4 more
doaj   +1 more source

Conditions for Shake-Gel Formation: The Relationship between the Size of Poly(Ethylene Oxide) and the Distance between Silica Particles

open access: yesMolecules, 2022
Colloidal silica suspensions are widely used in many fields, including environmental restoration, oil drilling, and food and medical industries. To control the rheological property of suspensions, poly(ethylene oxide) (PEO) polymers are often used. Under
Yi Huang   +2 more
doaj   +1 more source

Molecular Weight of Urokinase [PDF]

open access: yesNature, 1965
UROKINASE is a proteolytic enzyme in human urine1. Its ability to activate plasminogen has stimulated interest in its potential clinical use as a thrombolytic agent.
J. D. Coombes   +2 more
openaire   +3 more sources

Effect of ultrasonic degradation on the physicochemical property and bioactivity of polysaccharide produced by Chaetomium globosum CGMCC 6882

open access: yesFrontiers in Nutrition, 2022
Similar to the enzymatic process, there might also be an active fragment in polysaccharides, how to obtain is important for investigating the bioactivity and pharmacological mechanism of polysaccharides.
Shiwei Li   +7 more
doaj   +1 more source

The ring-opening polymerization of D,L-lactide in the melt initiated with tetraphenyltin [PDF]

open access: yes, 1984
Melt polymerization conditions for D,L-lactide initiated with tetraphenyltin were studied with regard to polymer molecular weight and weight distributions.
Berg, J.W.A. van den   +3 more
core   +2 more sources

Physicochemical Properties and Functional Characteristics of Ecologically Extracted Shrimp Chitosans with Different Organic Acids during Demineralization Step

open access: yesMolecules, 2022
The current study aims to develop eco-friendly and economical chitosans with a wide range of applications using organic acids for shrimp shells demineralization.
Abir El-araby   +2 more
doaj   +1 more source

Why Chain Length of Hyaluronan in Eye Drops Matters

open access: yesDiagnostics, 2020
The chain length of hyaluronan (HA) determines its physical as well as its physiological properties. Results of clinical research on HA eye drops are not comparable without this parameter.
Wolfgang G.K. Müller-Lierheim
doaj   +1 more source

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