101 research outputs found
A general strategy for the obtainment of biodegradable polymer shelled microbubbles as theranostic device
Michael-Type Addition Reactions for the In Situ Formation of Poly(vinyl alcohol)-Based Hydrogels
Assembling patchy plasmonic nanoparticles with aggregation-dependent antibacterial activity
We realise an antibacterial nanomaterial based on the self-limited assembly
of patchy plasmonic colloids, obtained by adsorption of lysozyme to gold
nanoparticles. The possibility of selecting the size of the assemblies within
several hundred nanometres allows for tuning their optical response in a wide
range of frequencies from visible to near infrared. We also demonstrate an
aggregation-dependent modulation of the catalytic activity, which results in an
enhancement of the antibacterial performances for assemblies of the proper
size. The gained overall control on structure, optical properties and
biological activity of such nanomaterial paves the way for the development of
novel antibacterial nanozymes with promising applications in treating multi
drug resistant bacteria
Tailoring of Physical and Chemical Properties of Macro- and Microhydrogels Based on Telechelic PVA
Structural Investigation on Thermoresponsive PVA/Poly(methacrylate-co-N-isopropylacrylamide) Microgels across the Volume Phase Transition
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Seeding chiral ensembles of prolinated porphyrin derivatives on glass surface: simple and rapid access to chiral porphyrin films
An easy and fast method to achieve chiral porphyrin films on glass is herein reported. The on-surface formation of organized supramolecular architectures with distinctive and remarkable chiroptical features strictly depends on the macrocycles used, the solvent chosen for the casting deposition, and most importantly, on the roughness of the glass slide. Dynamic light scattering studies performed on 10−4–10−6 M porphyrin solutions revealed the presence of small porphyrin aggregates, whose size and number increase depending on the initial concentration. Once transferred on surface, these protoaggregates act as nucleation seeds for the following, self-assembling into larger structures upon solvent evaporation, with a process driven by a fine balance between intermolecular and molecule–substrate interactions. The described method represents a straightforward way to fabricate porphyrin-based chiral surfaces onto a transparent and economic substrate in few minutes. The results obtained can be particularly promising for the development of sensors based on stereoselective optical active films, targeting the detection of chiral analytes of practical relevance, such as the so-called emerging pollutants released in the environment from agrochemical, food, and pharmaceutical manufacturing
Endocardial border delineation capability of a novel multimodal polymer-shelled contrast agent
Addressing tumor cells with temperature tunable nanogel surfaces: when SANS helps in understanding the mechanism
Novel Polymer shelled microballoons fro diagnostic and therapeutic purposes: new outcomes from the European project SIGHT
Polymeric microbubbles as multifunctional Ultrasound Contrast Agents: Design, Properties, and Ultrasound Behaviour.
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