Synthesis of magnetic hollow silica using polystyrene bead as a template

Synthesis of hollow ferrite nanospheres for biomedical applications

“…We found that SH groups on the silica spherical template facilitated synthesis of ferrite layers with neighboring grains fused to each other, which enabled the formation of self-standing hollow ferrite spheres in good yield. Our hollow ferrite nanospheres were prepared without using high temperature (to fuse grains and/or burn out the template [3,4]) and binders [5], which has, to our knowledge, not been done before and is advantageous. With their porous shells, the hollow ferrite nanospheres synthesized in this study are potentially applicable as multi-functionalized carriers both for drug delivery systems (DDS) and magnetic hyperthermia, and maybe even in combination of both.…”

“…Hollow ferrite spheres are proposed to be used as heating agent for anti-cancer magnetic hyperthermia treatment [2], and thus they are potential candidate for multi-functionalized magnetic carriers which can work both as anti-cancer hyperthermia and drug delivery system. Caruso [5].…”

“…The purpose of this study is to synthesize self-standing hollow ferrite spheres from an aqueous solution at low temperature without the use of binders [5] or high temperatures to burn out the templates [3]. We attempted to fabricate a continuous ferrite layer onto commercially available silica (SiO 2 ) spheres having different functional groups on their surfaces.…”

A molecularly imprinted polymer based on TiO2 as a sacrificial support for selective recognition of dibenzothiophene

“…Hollow micro-and nanoscale structures have aroused intense interest due to their specific structures and properties that differ from their solid counterparts, and wide applications in chemistry, biotechnology, and materials science [19,20]. Recently, the design concept for preparing hollow functional materials with surface molecular imprinting technique and sacrificial support matrix has increasingly attracted more interest due to its novelty and excellent applications in advanced separation technologies.…”

A Simple and “Green” Method for Synthesis of Magnetic Hollow Silica Spheres and Its <sup>99</sup>Tc<sup>m</sup> Labeled Targeting Studies

“…To date, a variety of methods (such as layer-by-layer coating technology [1] [10], spray pyrolysis [11], precipitation [12]) have been invented and employed to fabricate hollow spheres. Zhu et al prepared the rattle-like Fe 3 O 4 @SiO 2 hollow mesoporous spheres using the carbon spheres absorbed with iron precursor as the templates [13].…”