The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adom.202201375.

An examination is made of the mechanism of charge mozaic formation on the surface of a polycrystalline metal particle. It is shown that two particles in contact with each other, owing to the presence of a potential barrier between them, acquire electric charges of different sign. This effect must be taken into account when assessing the adhesion, adsorption, tribotechnical, and other service characteristics of metal-polymer systems.

Application of different light-sensitive drug delivery carriers is limited due to a risk of overheating of living cells. Therefore, a real-time temperature monitoring within biological objects that controls the photothermal release of different cargos from light-sensitive carriers is highly demanded. In this work, we develop a multifunctional platform comprised of polymer microcapsules modified with nitrogen vacancies (NV) centers as nanothermometers and gold (Au) nanoparticles (NPs) as heating elements for the realization of laser-induced cargo release with a simultaneous temperature measurement inside cells. Such platform allows to prevent unwanted side effects related with the overheating of living cells and tissues.