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- Title
Polycomplexes of Hyaluronic Acid and Borates in a Solid State and Solution: Synthesis, Characterization and Perspectives of Application in Boron Neutron Capture Therapy.
- Authors
Zelenetskii, Alexander N.; Uspenskii, Sergey; Zaboronok, Alexander; Cherkaev, Georgij; Shchegolihin, Alexander; Mathis, Bryan J.; Selyanin, Mikhail; Yamamoto, Tetsuya; Matsumura, Akira
- Abstract
In this report, we propose a new polyborate fragment synthesis strategy along the whole chain of the polysaccharide hyaluronic acid (HA) to produce boron neutron capture therapy (BNCT) compounds. Under high pressure and deformatory solid-state conditions, polymolecular system formation takes place due to association of phase-specific transition components into a more or less distinct microscopic organization. Fourier transform infrared (FTIR) spectroscopy shows that HA and polyborates form a network of cyclic polychelate complexes. HA acts as a multidentate ligand using carboxylic and hydroxyl proton donor groups to link oxygen atoms in B-O-B bonds and borate-anions B-O(-): O-H...O, O-H...(-)O.With free electron pairs in heteroatoms -O(:)...B, -N(:)...B, HA can act simultaneously as an electron donor. Nuclear magnetic resonance (NMR) with 13C and 1H reveals a preserved complex interaction after both solubilizing and attenuating the HA-polyborate system. Stability of the product in water, low cost, ease of synthesis and scalability of manufacturing indicate that HA-polyborate complexes might have advantages over current chemotherapeutic approaches in creating therapeutic agents for BNCT.
- Subjects
HYALURONIC acid; BORATES; SOLID state chemistry; BORON-neutron capture therapy; POLYSACCHARIDES; CYCLIC compounds
- Publication
Polymers (20734360), 2018, Vol 10, Issue 2, p181
- ISSN
2073-4360
- Publication type
Academic Journal
- DOI
10.3390/polym10020181