arget Audience: MR researchers on reconstruction and clinical scientists for fast imaging Purpose: Parallel Imaging (PI) 2 and Compressed Sensing (CS) enable scan acceleration by exploiting data correlation among channels and data sparsity in transform domains respectively. However, the acceleration capability is limited by the channel-encoding capability, noise increase and detail blurring. Di...

Erythrocytes have been described as advantageous drug delivery vehicles. In order to ensure an adequate circulation half-life, erythrocytes may benefit from protective enhancements that maintain membrane integrity and neutralize oxidative damage of membrane proteins that otherwise facilitate their premature clearance from circulation. Surface modification of erythrocytes using rationally design...

Introduction Highly branched polymers play an increasingly important role in interface and surface sciences, since their distinctive chemical and physical properties can be used advantageously as functional surfaces and as interfacial materials. Hyperbranched polymers grafted onto surfaces have also become a field of growing interest. Depending upon the substrates, it can be divided into 3D, 2D...

Protein patterning was carried out using a simple procedure based on photolithography wherein the protein was not subjected to UV irradiation and high temperatures, or contacted with denaturing solvents, and strongly acidic or basic solutions. Self-assembled monolayers of poly(ethylene glycol) (PEG) on silicon surfaces were exposed to oxygen plasma through a patterned photoresist. The etched re...

Single-walled carbon nanotubes (SWNT) were functionalized with polystyrene (PSt) by grafting to and grafting from methods. PSt-N3 with designed molecular weight and narrow molecular weight distribution was synthesized by atom transfer radical polymerization (ATRP) of styrene (St) followed by end group transformation and then added to SWNT. The grafting from functionalization was achieved by ATR...

A polymerizable ionic liquid, N,N-diethyl-N-(2-methacryloylethyl)-N-methylammonium bis(trifluoromethylsulfonyl)imide (DEMM-TFSI), was polymerized via copper-mediated atom transfer radical polymerization (ATRP). The polymerization proceeded in a living manner producing well-defined poly(DEMM-TFSI) of target molecular weight up to about 400 K (including a polycation and an counter anion). The acc...

El passat dia 15 de juliol del 2020 es va llegir la tesi doctoral La competència digital dels estudiants universitaris: conceptualització i avaluació. cas URV dirigida per Dr. Mercè Gisbert Cervera el Francesc Marc Esteve Mon. tribunal l’acte ser constituït pel Luis Marqués Molias, Dra. Virginia Larraz Rada y Juan González Martínez. L’acte finalitzar amb qualificació treball part un excel·lent ...

In photo-atom transfer radical polymerization (ATRP), dispersity can be efficiently controlled by varying the deactivator concentration. this work, we provide mechanistic insight into dispersity-controlled photo-ATRP conducting detailed kinetics under a range of conditions. For lower polymers, conventional first-order kinetic profile was observed accompanied linear evolution number average mole...

Primary amine containing copolymer, poly(N,N-dimethylacrylamide-co-N-(3-aminopropyl)methacrylamide hydrochloride) (poly(DMA-co-APMA)), brushes were synthesized on Ti surface by surface-initiated atom transfer radical polymerization (SI-ATRP) in aqueous conditions. A series of poly(DMA-co-APMA) copolymer brushes on titanium (Ti) surface with different molecular weights, thicknesses, compositions...

We present the synthesis of dual-responsive (pH and temperature) magnetic core-shell nanoparticles utilizing the grafting-from approach. First, oleic acid stabilized superparamagnetic maghemite (γ-Fe(2)O(3)) nanoparticles (NPs), prepared by thermal decomposition of iron pentacarbonyl, were surface-functionalized with ATRP initiating sites bearing a dopamine anchor group via ligand exchange. Sub...