Results 111 to 120 of about 95,722 (324)

Electrophoresis experiment for space [PDF]

open access: yes
The Apollo 16 electrophoresis experiment was analyzed, demonstrating that the separation of the two different-size monodisperse latexes did indeed take place, but that the separation was obscured by the pronounced electroosmotic flow of the liquid medium.
Micale, F. J., Vanderhoff, J. W.
core   +1 more source

Secondary cytotoxicity of (crosslinked) dermal sheep collagen during repeated exposure to human fibroblasts [PDF]

open access: yes, 1992
We investigated commercially available dermal sheep collagen either cross-linked with hexamethylenediisocyanate, or cross-linked with glutaraldehyde. In previous in vitro studies we could discriminate primary, i.e. extractable, and secondary cytotoxicity,
Dijkstra, P.J.   +5 more
core   +4 more sources

Unravelling the initiator‐only stage in alginate grafting: Radical‐induced depolymerization and its impact on acrylamide grafting efficiency

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Free‐radical grafting of natural polymers often assumes that initiators only create active sites before monomer addition. We tested this by exposing sodium alginate to potassium persulphate (KPS) under typical grafting conditions without monomer (acrylamide).
Gustavo P. Zago, João B. P. Soares
wiley   +1 more source

Stabilizing effect of methylcellulose on the dispersion of multi-walled carbon nanotubes in cementitious composites

open access: yesNanotechnology Reviews, 2020
Multi-walled carbon nanotubes (MWCNTs) have been added in the plain cementitious materials to manufacture composites with the higher mechanical properties and smart behavior. The uniform distributions of MWCNTs is critical to obtain the desired enhancing
Du Mingrui   +4 more
doaj   +1 more source

Expression, Purification, and Microscopy‐Based Assays for Engineered Recombinant Tyrosinated, Detyrosinated, and Δ2 Human Tubulin

open access: yesCytoskeleton, EarlyView.
ABSTRACT Microtubules are noncovalent polymers assembled from α/β tubulin dimers. Their structure, dynamics and interaction with effectors are regulated through the expression of diverse tubulin isotypes and chemically diverse posttranslational modifications, also known as the “tubulin code.” Understanding the biophysical correlates between tubulin ...
Jiayi Chen   +2 more
wiley   +1 more source

Comparative study between the effects of different concentrations of methylcellulose on the corneal endothelium during phacoemulsification

open access: yesJournal of the Egyptian Ophthalmological Society, 2019
Purpose To study the effect of different concentrations of methylcellulose on the corneal endothelium during phacoemulsification using specular microscopy.
Sherif M Akef Saleh   +3 more
doaj   +1 more source

Foreign body responses in central nervous system mimic natural wound responses and alter biomaterial functions [PDF]

open access: yes, 2019
Biomaterials hold promise for diverse therapeutic applications in the central nervous system (CNS). Little is known about molecular factors that determine CNS foreign body responses (FBRs) in vivo , or about how such responses influence biomaterial ...
Ao, Yan   +5 more
core   +1 more source

Hemogenic Endothelial Cells Can Transition to Hematopoietic Stem Cells through a B-1 Lymphocyte-Biased State during Maturation in the Mouse Embryo [PDF]

open access: yes, 2019
Precursors of hematopoietic stem cells (pre-HSCs) have been identified as intermediate precursors during the maturation process from hemogenic endothelial cells to HSCs in the aorta-gonad-mesonephros (AGM) region of the mouse embryo at embryonic day 10.5.
Azevedo Portilho, Nathalia   +9 more
core   +1 more source

Engineering and Characterization of a Fluorescent Fission Yeast Arp2/3 Complex for Single Molecule Mechanistic Investigations

open access: yesCytoskeleton, EarlyView.
ABSTRACT Arp2/3 complex is a seven‐component protein complex that facilitates the assembly of branched actin filament networks by binding to pre‐existing “mother” actin filaments and initiating the nucleation of new branched “daughter” filaments. Arp2/3 complex must be activated by a nucleation promoting factor such as the WASP/Scar protein family. The
Caitlin A. Anderson   +8 more
wiley   +1 more source

Design, formulation, and evaluation of in situ gelling ophthalmic drug delivery system comprising anionic and nonionic polymers

open access: yesIndian Journal of Health Sciences and Biomedical Research KLEU, 2017
Background: The significant problem in the ocular drug delivery is the attainment of optimal drug concentration at the site of action. Development of therapeutic agents that require repeated long-term administration is a driver for the sustained release ...
Fatima Sanjeri Dasankoppa   +5 more
doaj   +1 more source

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