The sorption of Cd and Zn on hydroxyapatite [HAPCa10(PO4)6(OH)2] and fluorapatite [FAPCa10(PO4)6(F)2] with different specific surface area and stoichiometry was investigated in batch experiments in the pH range 4 to 11 (25 C; 0.1 M KNO3). The impact of different conditions was concerned: solution pH, the presence of complexing ligands (EDTA and humic substance) and competing metal ions, as well...

Bone-like apatite coating of polymeric substrates by means of biomimetic process is a possible way to enhance the bone bonding ability of the materials. The created apatite layer is believed to have an ability to provide a favorable environment for osteoblasts or osteoprogenitor cells. The purpose of this study is to obtain bone-like apatite layer onto chitosan fiber mesh tissue engineering sca...

PURPOSE This study developed light cured dental composites with added monocalcium phosphate monohydrate (MCPM), tristrontium phosphate (TSrP) and antimicrobial polylysine (PLS). The aim was to produce composites that have enhanced water sorption induced expansion, can promote apatite precipitation and release polylysine. MATERIALS AND METHODS Experimental composite formulations consisted of l...

Medial calcification in the human aorta accumulates during aging and is known to be aggravated in several diseases. Atherosclerosis, another major cause of cardiovascular calcification, shares some common aggravators. However, the mechanisms of cardiovascular calcification remain poorly understood. To elucidate the relationship between medial aortic calcification and atherosclerosis, we charact...

The aim of this work was to study the influence of uncoated and apatite-coated Al2O3 implants on bone regeneration after 30 days of surgery in New Zealand white rabbits. Twelve samples of Al2O3 implants were prepared and half of them (n = 6) were apatite-coated by the modified biomimetic method. Three experimental groups were tested as Group C – control, surgery procedure without ceramic implan...

Corresponding author: Yuehuei H. An, MD, Department of Orthopaedic Surgery, Medical University of South Carolina, 96 Jonathan Lucas St, Suite 708, Charleston, SC 29425. Tel: (843) 792-8169; Fax: (843) 792-3674; [email protected] Figure 1. Scanning electron micrographs (SEM) of PLLA and nano apatite-PLLA scaffold surfaces prepared using sugar sphere leaching method. (A) PLLA scaffold; (B) Nano apatit...