A Versatile Approach for the Preparation of Thermosensitive PNIPAM Core–Shell Microgels with Nanoparticle Cores

Interaction of gold nanoparticles with thermoresponsive microgels: influence of the cross-linker density on optical properties

“…[11][12][13][14] Ideally these hybrid materials combine the responsiveness of the microgel with the optical, catalytic or magnetic properties of the embedded inorganic material. Many hybrid materials are based on the polymer coating of preformed nanoparticles [15][16][17] or the in situ synthesis of inorganic nanoparticles within a polymer matrix. [18][19][20] In both cases the nanoparticles are larger than the mesh size and are immobilized within the gel matrix.…”

Encapsulation and Growth of Gold Nanoparticles in Thermoresponsive Microgels

“…Recently, Karg et al [10] used a similar approach for the encapsulation of silica-coated gold nanoparticles within pNIPAM shells. Metal nanoparticles have also been used as templates by Singh et al [11] for the growth of pNIPAM nanogels, upon priming the nanoparticle surface with a layer of amino-terminated NIPAM to facilitate the precipitation and polymerization of pNIPAM.…”

Evaluating a simple blending approach to prepare magnetic and stimuli-responsive composite hydrogel particles for application in biomedical field

“…However for temperature-sensitive hydrogels, this process may affect the thermal response because high specific surface area of nanoparticles would favor interaction between nanoparticles and hydrogel matrix. Some authors cover the surface of the magnetic nanoparticles with SiO 2 prior to the polymerization because surface of Fe 3 O 4 nanoparticles inhibit polymerization [35,41,42]. Despite of this limitation, reports are available on direct precipitation polymerization of NIPAM and monomers in aqueous media using anionic initiator in the presence of stabilized iron oxide nanoparticles [43,44].…”