Results 51 to 60 of about 59,311 (300)

Supramolecular control over self-assembly and double thermoresponsive behavior of an amphiphilic block copolymer [PDF]

open access: yes, 2020
A poly(ethylene glycol)-b-poly[N, N-dimethylacrylamide-ran-2-acrylamidoethyl nonanoate] (PEG-b-P(DMA-AAEN)) block copolymer has been demonstrated to show double thermoresponsive behavior in aqueous solution in the presence of hydroxypropylated ...
Hoogenboom, Richard   +5 more
core   +1 more source

Neutral Polymeric Micelles for RNA Delivery [PDF]

open access: yesBioconjugate Chemistry, 2013
RNA interference (RNAi) drugs have significant therapeutic potential, but delivery systems with appropriate efficacy and toxicity profiles are still needed. Here, we describe a neutral, ampholytic polymeric delivery system based on conjugatable diblock polymer micelles. The diblock copolymer contains a hydrophilic poly[N-(2-hydroxypropyl)methacrylamide-
Brittany B, Lundy   +3 more
openaire   +2 more sources

Block Copolymers: Emerging Building Blocks for Additive Manufacturing

open access: yesAdvanced Functional Materials, EarlyView.
This review addresses how block copolymer (BCP) physics and rheology have led to the widespread use of BCPs in advanced additive manufacturing techniques, with particular emphasis on the untapped potential of these nanostructured materials toward achieving multi‐scale architected materials with unique, programmable material properties.
Alice S. Fergerson   +3 more
wiley   +1 more source

Optimizing end-labeled free-solution electrophoresis by increasing the hydrodynamic friction of the drag-tag

open access: yes, 2009
We study the electrophoretic separation of polyelectrolytes of varying lengths by means of end-labeled free-solution electrophoresis (ELFSE). A coarse-grained molecular dynamics simulation model, using full electrostatic interactions and a mesoscopic ...
Ahlrichs P.   +43 more
core   +1 more source

Fluid-Induced Propulsion of Rigid Particles in Wormlike Micellar Solutions [PDF]

open access: yes, 2014
In the absence of inertia, a reciprocal swimmer achieves no net motion in a viscous Newtonian fluid. Here, we investigate the ability of a reciprocally actuated particle to translate through a complex fluid that possesses a network using tracking methods
Alexander M.   +10 more
core   +3 more sources

Bio‐Inspired Molecular Events in Poly(Ionic Liquids)

open access: yesAdvanced Functional Materials, EarlyView.
Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley   +1 more source

Mixed Polymeric Micelles for Rapamycin Skin Delivery

open access: yesPharmaceutics, 2022
Facial angiofibromas (FA) are one of the most obvious cutaneous manifestations of tuberous sclerosis complex. Topical rapamycin for angiofibromas has been reported as a promising treatment. Several types of vehicles have been used hitherto, but polymeric
Guillaume Le Guyader   +8 more
doaj   +1 more source

Structure factor of polymers interacting via a short range repulsive potential: application to hairy wormlike micelles

open access: yes, 2003
We use the Random Phase Approximation (RPA) to compute the structure factor, S(q), of a solution of chains interacting through a soft and short range repulsive potential V.
A. Milchev   +32 more
core   +2 more sources

Self-assembling linear and star shaped poly (ε-caprolactone)/poly[(meth)acrylic acid] block copolymers as carriers of indomethacin and quercetin [PDF]

open access: yes, 2013
A amphiphilic linear AB, BAB, and star shaped (AB)(3) block copolymers of poly(E-caprolactone) (PCL)/poly(meth)acrylic acid (P(M)AA) are used for the preparation of nanoparticles and drug entrapment, where indomethacin and quercetin are employed as model
Bury, Katarzyna   +2 more
core   +2 more sources

Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges

open access: yesAdvanced Functional Materials, EarlyView.
Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley   +1 more source

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