Further records of social parasitic ants in Europe and review of the Bulgarian species.

Background: Social parasitic ants exploit the colonies of other ant species, either permanently or temporarily. The permanent parasites are amongst the rarest species of ants, although their hosts may be very common. Due to their rarity and often restricted distribution range, most of them are listed as vulnerable.

alkaloids - acid, anion-driven fluorescent INHIBIT logic gates with a receptor-fluorophore-spacer-receptor format and PET and ICT mechanisms.

The fluorescent natural products, quinine, quinidine, cinchonine and cinchonidine are demonstrated as H-enabled, halide-disabled (Cl, Br or I) INHIBIT and INHIBIT-OR combinatorial logic gates in water. More fluorescent natural products with intrinsic logic properties await to be discovered.

Solvent-polarity reconfigurable fluorescent 4-piperazino--aryl-1,8-naphthalimide crown ether logic gates.

Four compounds 1-4 were designed and synthesised, comprising a 4-amino--aryl-1,8-naphthalimide fluorophore, a piperazine receptor, and an aryl group, as fluorescent logic gates. At the imide position, the substituent is phenyl (1), 1,2-dimethoxyphenyl (2), benzo-15-crown-5 (3), or benzo-18-crown-6 (4). Molecules 1 and 2 are constructed according to a fluorophore-spacer-receptor format, while 3 and 4 are engineered according to a receptor-spacer-fluorophore-spacer-receptor format based on photoinduced electron transfer and internal charge transfer mechanisms.

4-Amino-1,8-naphthalimide-ferrocene conjugates as potential multi-targeted anticancer and fluorescent cellular imaging agents.

Herein we present eight ferrocenyl 4-amino-1,8-naphthalimides. Designed as fluorescent logic gates for acidity and oxidisability, the molecules have been repurposed as anti-proliferation and cellular imaging agents. The compounds were studied against MCF-7 and K562 cancer cell lines by the MTT method.

Spatial focusing of magnetic particle hyperthermia.

Magnetic particle hyperthermia is a promising cancer therapy, but a typical constraint of its applicability is localizing heat solely to malignant regions sparing healthy surrounding tissues. By simultaneous application of a constant magnetic field together with the hyperthermia inducing alternating magnetic field, heating focus may be confined to smaller regions in a tunable manner. The main objective of this work is to evaluate the focusing parameters, by adequate selection of magnetic nanoparticles and field conditions, and explore spatially focused magnetic particle hyperthermia efficiency in tissue phantom systems comprising agarose gel and magnetic nanoparticles.