Redox- and pH-responsive emulsions based on TiO₂ nanoparticles and ferrocene derivates

Abstract

We synthesized a novel surfactant ferrocene azine (FcA) and developed a redox and pH-responsive emulsion stabilized by TiO2 nanoparticles and oxidized ferrocene azine (Fc+A) with fluorescence through simple mixing instead...

Design of Proanthocyanidins and TiO2 Nanoparticles‐Based Novel Emulsions as a Platform for UV Protection

“…The well‐dispersed anatase TiO 2 nanoparticles with the diameter of about 5 nm could be observed by transmission electron microscope (TEM) images (Figure S1) and X‐Ray diffraction (XRD) patterns (Figure S2). The pure TiO 2 nanoparticles were highly hydrophilic with a contact angle of less than 10° [20] . Thus, the oil‐water mixture could not be emulsified by TiO 2 nanoparticles (0.01–0.1 wt %) alone, and a complete phase separation could be observed, as shown in Figure S3.…”

“…The pure TiO 2 nanoparticles were highly hydrophilic with a contact angle of less than 10°. [20] Thus, the oil-water mixture could not be emulsified by TiO 2 nanoparticles (0.01-0.1 wt %) alone, and a complete phase separation could be observed, as shown in Figure S3. However, when TiO 2 nanoparticles (0.025 wt %) combined with OPC (0.5 mmol/ L) were used as stabilizers, a stable emulsion was formed.…”