Self-crosslinking of Tannic acid (TA) was accomplished to obtain poly(tannic acid) (p(TA)) particles in single step, surfactant free media using sodium periodate (NaIO4) as an oxidizing agent. Almost monodisperse p(TA) with 981 ± 76 nm sizes and −22 4 mV zeta potential value ellipsoidal shape obtained. Only slight degradation 6.8 0.2% observed at pH 7.4 PBS up 15 days because the irreversible c...

Cupressus sempervirens L. which is largely used in traditional medicine was collected from the Florya Atatürk Forest (İstanbul, Türkiye) to investigate phytochemical profiling and antioxidant capacity of seeds cones. The activities hexane methanol extracts C. were assessed vitro using five complementary methods, including β-carotene-linoleic acid assay for lipid peroxidation activity, DPPH•, AB...

The successful design of orally active non-toxic selective metal chelators is a much sought-after goal. In order to identify an ideal chelator for clinical use, a range of specifications must be considered, such as metal selectivity and affinity, kinetic stability of the complex, bioavailability and toxicity. In this overview the comparative properties of ligands capable of endowing complexes w...

The metal-binding abilities of a wide variety of bioactive aminophosphonates, from the simple aminoethanephosphonic acids to the rather large macrocyclic polyaza derivatives, are discussed with special emphasis on a comparison of the analogous carboxylic acid and phosphonic acid systems. Examples are given of the biological importance of metal ion - aminophosphonate interactions in living syste...

Described are amphiphilic polymers that are provided with chelating moieties. The amphiphilic polymers are block copolymers comprising a hydrophilic block and a hydropho bic block, with the chelating moieties linked to the end-group of the hydrophilic block. The disclosed polymers are capable of self-assembly into structures Such as micelles and poly mersomes. With suitable metals present in th...

The rates of oxidation of four chelating agents with Ce(IV) in HC104 solutions, have been studied by the stopped-flow technique. The rates first increase with increasing acidity, reach maxima which are characteristic of the chelating agent and the medium, then progressively decrease with further increasing acid concentration. At their maximum reactivities, the tendencies for oxidation decrease ...

In the binuclear title complex, [Dy(2)(C(7)H(3)N(2)O(6))(6)(C(12)H(8)N(2))(2)], the Dy(III) ions exhibit a distorted monocapped square-anti-prismatic geometry and are coordinated by seven O atoms of four 3,5-dinitrobenzoate (DNBA) anions and two N atoms of a phenanthroline ligand. The carboxylate groups of the DNBA anions exhibit three coordination modes: bidentate chelating, bidentate chelatin...

Background and objectives: Asarum europaeum L. is an herbal medicine belonging to the family Aristolochiaceae. The rhizome of the plant has been used for the treatment of various diseases in complementary and alternative medicine of various countries. In Iranian traditional medicine (ITM), the aqueous extract of the rhizome has been used for the improvement and enhance...