Composite materials consisting of responsive microgels together with additional nanoparticles might provide new and “smart” functionality, e.g. uptake and release of nanoparticles, or special mechanical or rheological properties of a solution. Here, composites consisting of PNIPAM microgels and silica nanoparticles have been investigated by CryoTEM and neutron scattering techniques. The formation of “raspberry” like core–shell structures with a silica nanoparticle layer around the microgel core has been observed.

中文翻译：

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微凝胶-二氧化硅纳米粒子复合系统中的树莓结构

由响应性微凝胶和其他纳米颗粒组成的复合材料可能会提供新的“智能”功能，例如纳米颗粒的吸收和释放，或溶液的特殊机械或流变特性。在这里，已经通过CryoTEM和中子散射技术研究了由PNIPAM微凝胶和二氧化硅纳米颗粒组成的复合材料。已经观察到“树莓”状核-壳结构的形成，在微凝胶核心周围具有二氧化硅纳米颗粒层。