The successful fabrication of TiO₂-faced asymmetric patchy particles consisting of polystyrene and a Fe₃O₄/SiO₂/TiO₂ part is described. Such particles can be of large interest for photochemistry. The used site-selective coating approach demonstrates a modification strategy for a special patchy particle family which may have a general character. The stability of the coating has been tested under several conditions with no sign of disruption. The influence of the prepared asymmetric particles on oil/water phase mixing behavior was tested and turned out to be very diverse. Oils with low polarity (e.g., hexadecane, cyclohexane, octadecane) can form Pickering emulsions by the help of these particles; oils with high polarity (e.g., 1-octanol) form monodisperse macrodroplet systems with unusual stability.

中文翻译：

---

不对称修补颗粒上的定点TiO ₂涂层

成功制备了由聚苯乙烯和Fe ₃ O ₄ / SiO ₂ / TiO ₂组成的TiO _2面不对称补丁颗粒描述部分。这样的颗粒对于光化学可能是非常重要的。所使用的位点选择性包衣方法展示了针对特殊的斑驳颗粒家族的修饰策略，该家族可能具有一般特征。涂层的稳定性已在多种条件下进行了测试，没有破坏的迹象。测试了所制备的不对称颗粒对油/水相混合行为的影响，结果证明该变化非常多样。极性低的油（例如十六烷，环己烷，十八烷）可借助这些颗粒形成Pickering乳液。高极性油（例如1-辛醇）形成具有异常稳定性的单分散大液滴系统。