Results 21 to 30 of about 92,048 (122)

Injectable Poly(oligoethylene glycol methacrylate)-Based Hydrogels Fabricated from Highly Branched Precursor Polymers: Controlling Gel Properties by Precursor Polymer Morphology

open access: yesACS Applied Polymer Materials, 2019
The physicochemical properties of injectable hydrogels are typically modified by altering the chemistry of the precursor polymer and/or the amount or type of cross-linker, both of which can lead to hydrogels with altered mechanics, swelling, degradation,
I. Urosev   +7 more
semanticscholar   +1 more source

One‐pot inimer promoted ROCP synthesis of branched copolyesters using α‐hydroxy‐γ‐butyrolactone as the branching reagent

open access: yesJournal of Polymer Science Part A: Polymer Chemistry, 2016
An array of branched poly(ɛ‐caprolactone)s was successfully synthesized using an one‐pot inimer promoted ring‐opening multibranching copolymerization (ROCP) reaction.
Geng Hua, J. Franzén, Karin Odelius
semanticscholar   +1 more source

Role of Branching of Hydrophilic Domain on Physicochemical Properties of Amphiphilic Macromolecules.

open access: yesPolymer Chemistry, 2014
A novel series of amphiphilic macromolecules (AMs) composed of a sugar backbone, aliphatic chains, and branched, hydrophilic poly(oligoethylene glycol) methyl ether methacrylate (POEGMA)were developed for drug delivery applications.
Dalia Abdelhamid   +3 more
semanticscholar   +1 more source

The Co‐Incorporation of Zn/Cu or Zn/Co Ions Improves the Bone Regeneration Potential of PEOT/PBT–βTCP Composite 3D‐Printed Scaffolds

open access: yesAdvanced NanoBiomed Research
Treatment of critical‐sized bone defects remains challenging despite bone's regenerative capacity. Herein, a combination of a biodegradable polymer possessing bone‐bonding properties with bioactive β‐tricalcium phosphate (βTCP) particles coated with ...
Martyna Nikody   +5 more
doaj   +1 more source

Efficient delivery of NF-κB siRNA to human retinal pigment epithelial cells with hyperbranched cationic polysaccharide derivative-based nanoparticles

open access: yesInternational Journal of Nanomedicine, 2015
Zhenzhen Liu,1,* Haijun Gong,2,* Rui Zeng,2 Xuan Liang,1 Li-Ming Zhang,1 Liqun Yang,1,* Yuqing Lan2,* 1Institute of Polymer Science, School of Chemistry and Chemical Engineering, Key Laboratory of Designed Synthesis and Application of Polymer Material ...
Liu Z   +6 more
doaj  

Poly(ADP-ribose) Binds to Specific Domains in DNA Damage Checkpoint Proteins*

open access: yesJournal of Biological Chemistry, 2000
Poly(ADP-ribose) is formed in possibly all multicellular organisms by a familiy of poly(ADP-ribose) polymerases (PARPs). PARP-1, the best understood and until recently the only known member of this family, is a DNA damage signal protein catalyzing its ...
J. Pleschke   +3 more
semanticscholar   +1 more source

Comparison of Filamin A-induced Cross-linking and Arp2/3 Complex-mediated Branching on the Mechanics of Actin Filaments* 210

open access: yesJournal of Biological Chemistry, 2002
We compared the effects of human filamin A (FLNa) and the activated human Arp2/3 complex on mechanical properties of actin filaments. As little as 1 FLNa to 800 polymerizing actin monomers induces a sharp concentration-dependent increase in the apparent ...
F. Nakamura   +3 more
semanticscholar   +1 more source

From Corrosion Casting to Virtual Dissection: Contrast‐Enhanced Vascular Imaging using Hafnium Oxide Nanocrystals

open access: yesSmall Methods
Vascular corrosion casting is a method used to visualize the three dimensional (3D) anatomy and branching pattern of blood vessels. A polymer resin is injected in the vascular system and, after curing, the surrounding tissue is removed.
Eline Goossens   +16 more
semanticscholar   +1 more source

Recent Advances in Controlled Production of Long-Chain Branched Polyolefins.

open access: yesMacromolecular rapid communications
Polyolefins, composed of carbon and hydrogen atoms, dominate global polymer production. This stems from the wide range of physical and mechanical properties that various polyolefins can cover.
A. Dashti, Mostafa Ahmadi
semanticscholar   +1 more source

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