75 research outputs found
Nanopod Formation through Gold Nanoparticle Templated and Catalyzed Cross-linking of Polymers Bearing Pendant Propargyl Ethers
Full text linkPhase Behavior of Complementary Multiply Hydrogen Bonded End-Functional Polymer Blends
Full text linkHow Long Cylindrical Micelles Formed after Extruding Block Copolymer in a Selective Solvent through a Small Pore Fragment back into Spherical Ones
No full textA Linear-Hyperbranched Supramolecular Amphiphile and Its Self-Assembly into Vesicles with Great Ductility
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ESTUDO RETROSPECTIVO DO LEVANTAMENTO DE PROBLEMAS DE ENFERMAGEM E SUA CORRELAÇÃO COM A PRESCRIÇÃO DE ENFERMAGEM
No full textFunctionalized stimuli-responsive nanocages from photocleavable block copolymers
No full textThe light-induced formation of pH and temperature-responsive poly[2-(dimethylamino)ethyl methacrylate](PDMAEMA) nanocages is demonstrated here. The strategy is based on the self-assembly in aqueous solutions of a photocleavable poly(tert-butyl acrylate)-hv-poly[2-(dimethylamino)ethyl methacrylate] block copolymer (PtBAhv-PDMAEMA, where -hv- is the photocleavable junction) into spherical micelles, followed by first PDMAEMA crosslinking by a bis-iodo compound and then by UV light irradiation. The exposure to light induces the cleavage of the junction between the PtBA core and the cross-linked PDMAEMA shell of the micelles. The PtBA block is then extracted to obtain the desired nanocages. The size change of the nanocages in response to pH and temperature is investigated by dynamic light scattering. Finally, the ability to functionalize the internal cavity of the nanocages is demonstrated
Human-environment Interaction: A Modification of the Neuman Systems Model for Aggregates, Families, and the Community
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