Results 41 to 50 of about 68,115 (310)

Open windrow composting of polymers: An investigation into the rate of degradation of polyethylene [PDF]

open access: yes, 2004
The compostability of degradable polymers under open windrow composting conditions is explored within this paper. Areas for consideration were the use of, and impacts of, degradable polyethylene (PE) sacks on the composting process and the quality of the
Billett, EH   +4 more
core   +1 more source

Structural Modification and Biological Activity of Polysaccharides

open access: yesMolecules, 2023
Natural polysaccharides are macromolecular substances with a wide range of biological activities. The structural modification of polysaccharides by chemical means can enhance their biological activity.
Ting Zhao   +9 more
doaj   +1 more source

Brief overview on bio-based adhesives and sealants [PDF]

open access: yes, 2019
Adhesives and sealants (AS) are materials with excellent properties, versatility, and simple curing mechanisms, being widely used in different areas ranging from the construction to the medical sectors.
Ana C. Fonseca   +15 more
core   +1 more source

Gender differences in microcirculation: Observation using the hamster cheek pouch

open access: yesClinics, 2013
OBJECTIVES: Estrogen has been shown to play an important protective role in non-reproductive systems, such as the cardiovascular system. Our aim was to observe gender differences in vivo with regard to the increase in macromolecular permeability and ...
Diogo Guarnieri Panazzolo   +5 more
doaj   +1 more source

Fermentation process of tobacco leaves drives the specific changes of microbial community. [PDF]

open access: yesBMC Microbiol
Background The changes of microbial community on tobacco leaves are affected by several factors during fermentation. However, the relative contribution of different factors in determining microbial community is not clear.
Tao J   +11 more
europepmc   +2 more sources

Structural changes in lipid-free humic acids during composting of sewage sludge [PDF]

open access: yes, 2005
Structural changes in humic acids (HAs), extracted after lipid removal from sewage sludge during composting, were investigated using various chemical methods (elemental analysis, Fourier transform infrared spectroscopy and 13C-nuclear magnetic resonance
Amir, Soumia   +3 more
core   +3 more sources

Biomass-Derived Plant Extracts in Macromolecular Chitosan Matrices as a Green Coating for PLA Films

open access: yesJournal of Functional Biomaterials, 2022
Due to the growing problem of food and packaging waste, environmental awareness, and customer requirements for food safety, there is a great need for the development of innovative and functional packaging.
Lidija Fras Zemljič   +9 more
doaj   +1 more source

Release of macromolecules from albumin-heparin microspheres [PDF]

open access: yes, 1992
Hydrophilic microspheres based on albumin-heparin conjugates have been prepared as a macromolecular delivery system. The soluble albumin-heparin conjugate was synthesized and crosslinked in a water-in-oil emulsion with glutaraldehyde to form microspheres
Bae, You Han   +5 more
core   +2 more sources

Pleiotropic Role of Tenascin-C in Central Nervous System Diseases: From Basic to Clinical Applications

open access: yesFrontiers in Neurology, 2020
The extracellular matrix is composed of a variety of macromolecular substances secreted by cells, which form a complex network that supports and connects tissue structures, regulates the morphogenesis of tissues, and maintains the physiological ...
Chen Hanmin   +5 more
doaj   +1 more source

Osmotic pressure: resisting or promoting DNA ejection from phage [PDF]

open access: yes, 2008
Recent in vitro experiments have shown that DNA ejection from bacteriophage can be partially stopped by surrounding osmotic pressure when ejected DNA is digested by DNase I on the course of ejection.
Castelnovo, Martin   +3 more
core   +3 more sources

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