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[en] Data on the heat-accumulating properties of melts are generalised. The principles and methods of thermal energy accumulation with the use of melts are considered. The problem of search for heat-accumulating materials with the required properties based on multi-component systems of anhydrous inorganic compounds is discussed. The bibliography includes 57 references.
[en] Various inorganic nanoparticles have been used for drug delivery, magnetic resonance and fluorescence imaging, and cell targeting owing to their unique properties, such as large surface area and efficient contrasting effect. In this review, we focus on the surface functionalization of inorganic nanoparticles via immobilization of biomolecules and the corresponding surface interactions with biocomponents. Applications of surface-modified inorganic nanoparticles in biomedical fields are also outlined. (topical review)
[en] Highlights: • The ΔEST of compounds 2–5 is reduced largely, but the increase of kr is small. • The compound 6 not only reduces the ΔEST but also enhances kr. • The kr of compound 7 is comparable with that of compound 6, but the ΔEST is large. Based on a thermally activated delayed fluorescence (TADF) triptycene compound 1, compounds 2–7 were designed by varying electron-donating units (2–5) and increasing π-conjugation length (6 and 7). The results indicate that singlet-triplet energy splitting (ΔEST) of compounds 2–5 is reduced largely, but their improvement of radiative decay rate (kr) is slightly small. However, the compound 6 not only reduces the ΔEST but also enhances kr. For compound 7, the kr value is comparable with compound 6, but ΔEST value is quite large. Therefore, possessing an appropriate π-conjugation length might be helpful to improve TADF performances for the materials investigated here.
[en] A review of the applications of nuclear quadrupole resonance (NQR) to the study of various classes of inorganic compounds is presented. Complex ions, donor-acceptor complexes, bridging dimers, chain and layer polymers are considered separately. Structure, electronic and other important properties of the compounds are discussed in terms of the NQR results. 556 refs.; 51 figs.; 58 tabs