Every year, millions of tons fish waste are generated from fishing activities, and a similar amount is discarded returned to the sea as unwanted catches. This material can be used biological source for many potential new added-value products, such asobtaining hyaluronic acid eyeballs or extracting collagen skin, but there not utilities bones yet. work tackles transformation discards into calciu...

A new manure treatment technology developed as an alternative to anaerobic lagoons on swine (Sus scrofa domesticus) farms includes solid-liquid separation and subsequent recovery of soluble P as calcium phosphate from the wastewater. The objective was to determine the agronomic effectiveness of this calcium phosphate material. A greenhouse study was conducted with annual ryegrass (Lolium multif...

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...

This review paper on amorphous calcium phosphates (ACPs) provides an update on several aspects of these compounds which have led to many studies and some controversy since the 1970s, particularly because of the lack of irrefutable proof of the occurrence of an ACP phase in mineralised tissues of vertebrates. The various synthesis routes of ACPs with different compositions are reported and the t...

Bone substitutes are nowadays largely used in orthopedic surgery but they lack osteoinductive properties. Poly (2-hydroxyethyl methacrylate) (pHEMA) has numerous biomedical applications. Alkaline phosphatase (AlkP), an ectoenzyme elaborated by osteoblasts, initiates bone mineralization by hydrolyzing organic phosphates before calcium-phosphorus deposition. We have immobilized AlkP in pHEMA in a...

Abstract. Phosphorus in the environment is mostly bound with iron, magnesium, calcium, and aluminum (Fe, Mg, Ca, and Al, respectively). This study aimed to determine both spectral signatures of Fe, Mg, Ca, and Al associated phosphates and analyze their spectra with soil samples. Obtaining most common spectra of the phosphates and their spectral signatures within a soil sample can be used for de...

Phosphorus (P) is essential for life and has a fundamental role in industry the world food production system. The present work describes different technologies adopted what called second-generation P recovery framework, that encompass obtained from residues wastes. high potential to substitute first-generation comprising originally mined rock phosphates agricultural production. Several physical...

Synthetic calcium phosphates, e.g., hydroxyapatite (HAP) and tricalcium phosphate (TCP), are the most commonly used bone-graft materials due to their high chemical similarity natural hydroxyapatite—the inorganic component of bones. Calcium in form a free ion or bound complexes plays key role many biological functions, including bone regeneration. This paper explores possibility increasing Ca2+-...

Several techniques have been utilized for the preparation of hydroxyapatite (HA) and other calcium phosphates for the development of biomaterials. It is vital to know the reaction kinetics to be able to control the material obtained by the aqueous solution route. In the present work, HA has been produced by different wet precipitation processes and different experimental conditions. Calcium hyd...

The widespread use of clhronic dialysis and renal homotransplantation, while prolonging the lives of patients with chronic renal failure, have concomitantly resulted in the appearance of severe disorders of calcium and phosphorus metabolism and disabling renal osteodystrophy (retardation of growth and dwarfism, osteitis fibrosa, rickets or osteomalacia and, at times, osteosclerosis). Furthermor...