Currently, the development of TiO₂ memristors is associated with their use in modern highly technological applications, such as resistive random-access memory (RRAM), biohybrid systems, and sensors, as schematically shown in Figure 1A. In this mini-review, we briefly outline and summarize the key milestone achievements, as well as recent advances in the synthesis, fabrication, and application of TiO₂-based memristors. A special focus is placed on the relationships between the synthesis and deposition methods, the effects of post-synthesis treatment, and the resistive switching properties.

Following the filtration, the precipitate is washed thoroughly to remove any impurities and excess reagents. This is a crucial step, as thorough washing ensures that no contaminants interfere with the final mass measurement. Once washed, the precipitate is dried in an oven at a controlled temperature to remove moisture, ensuring that the mass recorded reflects only the titanium content.