Journal
JOURNAL OF SOLID STATE CHEMISTRY
Volume 225, Issue -, Pages 59-64Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jssc.2014.11.028
Keywords
Zn-tartrate; Coordination polymers; Hydrothermal synthesis; Biomedical application; Food supplement
Funding
- Slovenian Research Agency [P1-0021]
- Ministry of Science, Education and Sport of Republic of Croatia [098-0982904-2953]
- Croatian-Slovenian bilateral project [BI-HR/12-13-035]
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New anhydrous Zn-L-tratrate was synthesized under hydrothermal conditions. Crystal structure which was solved by powder X-ray diffraction data from monoclinic unit cell (I-2, a=11.7557(1), 6=9.0319(1), c=5.0750(1), beta=91.920(1)) consists of the three-dimensional framework where each Zn atom coordinates four tartrate ligands in distorted octahedral geometry. Due to its biocompatible components, the degradation of material was studied in aqueous media under different pH values (pH=1-7) and in the simulated body fluid (pH=7.4) performed by the measurement of the released Zn2+ concentrations at thermostatic conditions (37 degrees C). The results showed that under acidic conditions approximately 60% of Zn2+ is released from the investigated material after 6 h of degradation process. With the increase of the solution's pH, the rate of degradation gradually decreases. XRD and SEM analyses indicate that in aqueous media the compound slowly disintegrates and does not undergo hydrolysis process regardless of pH. Biocompatibility of the compound and its controllable rate of degradation even in acid conditions open its potential use in the fields of bio-applications. (C) 2014 Elsevier Inc. All rights reserved.
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