Publications by authors named "Nikita Bel'ko"
Article Synopsis
- Developing efficient fluorescent sensors for metal corrosion is important, but sensitive sensors can lose effectiveness when exposed to different coatings.
- Silica nanocontainers are used to encapsulate rhodamine B acylhydrazone, which acts as a pH sensor, and these nanomaterials are applied in low concentrations in water-based epoxy and acrylic coatings to detect early corrosion in steel.
- The encapsulated dye shows 4 times greater fluorescence response to corrosion compared to non-encapsulated, while also enhancing dye dispersion and coating barrier properties without needing solvents.
One of the most significant limitations of photodynamic therapy is its reduced efficacy in hypoxic microenvironments, which are typical of the majority of tumors. This work demonstrates that indolenine heptamethine cyanines with different substituents in the polymethine chain and at the terminal heterocycles are effective superoxide generators that can be activated in the near-infrared range. The introduction of an indene moiety into the polymethine chain results in a significant enhancement in photostability compared to dyes with a cyclohexene moiety or an unsubstituted polymethine chain.
View Article and Find Full Text PDFThe spread of multidrug-resistant mycobacterium strains requires the development of new approaches to combat diseases caused by these pathogens. For that, photodynamic inactivation (PDI) is a promising approach. In this study, a tricarbocyanine (TCC) is used for the first time as a near-infrared (740 nm) activatable PDI photosensitizer to kill mycobacteria with deep light penetration.
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