Environmentally benign fabrication of calcium hydroxyapatite using seashells collected in Baltic Sea countries: A comparative study

Trinkunaite-Felsen, J.; Birkedal, Henrik; Žarkov, Aleksej; Tautkus, Stasys; Stankevičiūtė, Živilė; Kareiva, Aivaras

doi:10.1080/10426507.2015.1114947

Cited by 16 publications

(12 citation statements)

References 17 publications

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“…Furthermore, the peak at 1083 cm −1 was observed only in the spectrum of aragonite phase . The non‐intensive absorption band at ∼ 1785 cm −1 may be the only evidence of the organic phase, signifying that organic functional groups are poorly represented at the surface, as active centers. This is in accordance with previous findings that characteristic vibration bands of polysaccharides and proteins become visible in the FTIR spectra only after partial dissolution of carbonate fraction by acid treatment …”

Section: Resultsmentioning

confidence: 99%

“…Seashell waste is already in use as a precursor of the products which, depending on the shape and size of the grains, can be successfully utilized in neutralization processes, soil treatment, animal feed production and for decorative use . Moreover, nano‐sized calcium‐carbonate powders obtained from shell waste have use in the paper industry, production of rubber, paints and pharmaceuticals, as well as for the fabrication of calcium‐hydroxyapatite …”

Section: Introductionmentioning

confidence: 99%

“…13 Moreover, nano-sized calcium-carbonate powders obtained from shell waste have use in the paper industry, production of rubber, paints and pharmaceuticals, 14 as well as for the fabrication of calcium-hydroxyapatite. 15 Previous research in relation to applications of seashells have also been directed towards immobilization of heavy metals, such as Pb, Cd, Cu, Zn, Ni, Co, from aqueous phase. [16][17][18][19][20][21][22][23] Shell species commonly explored in sorption studies were oyster and mussel shells, due to their vast amounts from the fishery industry.…”

Section: Introductionmentioning

confidence: 99%

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Experimental and theoretical consideration of the factors influencing cationic pollutants retention by seashell waste

Egerić

Smičiklas

Mraković

et al. 2018

J of Chemical Tech & Biotech

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BACKGROUND Seashell waste (SW) is rich in biogenic calcium carbonate and potentially can substitute geological sources in various applications, such as the separation of heavy metals and radionuclides from contaminated solutions. This study aims to compare SW sorption efficiency towards different chemical species (Cu2+, Zn2+, Pb2+ and Sr2+) and to evaluate the effects of various factors based on the experimental data and modeling approach. RESULTS The reaction of SW with aqueous metal solutions is a combination of several processes that result in metal retention, Ca2+ release, and changes in pH. SW demonstrates variable selectivity for investigated cations, depending on their concentrations and reaction times. Maximum sorption capacities declined in the order Zn2+ > Pb2+ ≈ Sr2+ > Cu2+. The model based on general regression neural network (GRNN) architecture was developed, which enabled prediction of removal efficiency taking into account the process specific, metal specific parameters and their non‐linear interactions. Initial concentration and covalent radius of a cation exhibit the highest, while the initial pH the lowest significance. CONCLUSION Ecological problems caused by SW accumulation in coastal areas could be mitigated by mastering technologies for their practical utilization. The results obtained facilitate the understanding of cationic pollutants removal by SW in the range of experimental conditions, while the GRNN approach demonstrates advantages in modeling complex sorption processes. © 2017 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Experimental and theoretical consideration of the factors influencing cationic pollutants retention by seashell waste

Egerić

Smičiklas

Mraković

et al. 2018

J of Chemical Tech & Biotech

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“…(ii) As a consequence, researchers found a simple, reliable and highly productive alternative to classical chemical routes, i.e., to extract it from sustainable CaP resources. One should note that the most important primary natural reservoirs of CaP are either bones (of mammalian or fish origin [13][14][15]) or biogenic sources (egg-shells [16], whelks, or sea-shells [17]), often treated as food industry wastes only [18]. Fish bones are rich in calcium, carbonate, and phosphate and could be reliable sources for the production of natural HA (BioHA).…”

Section: Introductionmentioning

confidence: 99%

A Review on Biphasic Calcium Phosphate Materials Derived from Fish Discards

2021

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This review summarizes the results reported on the production of biphasic calcium phosphate (BCP) materials derived from fish wastes (i.e., heads, bones, skins, and viscera), known as fish discards, and offers an in-depth discussion on their promising potential for various applications in many fields, especially the biomedical one. Thus, considerable scientific and technological efforts were recently focused on the capability of these sustainable materials to be transformed into economically attractive and highly valuable by-products. As a consequence of using these wastes, plenty of beneficial social effects, with both economic and environmental impact, will arise. In the biomedical field, there is a strong and continuous interest for the development of innovative solutions for healthcare improvement using alternative materials of biogenic origin. Thus, the orthopedic field has witnessed a significant development due to an increased demand for a large variety of implants, grafts, and/or scaffolds. This is mainly due to the increase of life expectancy and higher frequency of bone-associated injuries and diseases. As a consequence, the domain of bone-tissue engineering has expanded to be able to address a plethora of bone-related traumas and to deliver a viable and efficient substitute to allografts or autografts by combining bioactive materials and cells for bone-tissue ingrowth. Among biomaterials, calcium phosphate (CaP)-based bio-ceramics are widely used in medicine, in particular in orthopedics and dentistry, due to their excellent bioactive, osteoconductive, and osteointegrative characteristics. Recently, BCP materials (synthetic or natural), a class of CaP, which consist of a mixture of two phases, hydroxyapatite (HA) and beta tricalcium phosphate (β-TCP), in different concentrations, gained increased attention due to their superior overall performances as compared to single-phase formulations. Moreover, the exploitation of BCP materials from by-products of fish industry was reported to be a safe, cheap, and simple procedure. In the dedicated literature, there are many reviews on synthetic HA, β-TCP, or BCP materials, but to the best of our knowledge, this is the first collection of results on the effects of processing conditions on the morphological, compositional, structural, mechanical, and biological properties of the fish discard-derived BCPs along with the tailoring of their features for various applications.

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“…So called environmentally friendly sol-gel synthesis routes for the preparation of CHAp were also suggested [196][197][198][199][200][201][202]203]. It was concluded that CHAp could be synthesized from limestone by using sol-gel method adjusting the solution pH 9 [196,197].…”

Section: Introductionmentioning

confidence: 99%

Sol–gel synthesis of calcium phosphate-based biomaterials—A review of environmentally benign, simple, and effective synthesis routes

Ishikawa

Kareiva

2020

J Sol-Gel Sci Technol

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In this review article the available results about application of sol-gel synthesis method for the preparation of different calcium phosphates and composite materials are summarized. The attention is paid to calcium phosphate-containing compounds which show the biological properties and could be used as potential phosphate bioceramics in medicine. It was demonstrated that the sol-gel synthesis method is a powerful tool for the synthesis of calcium hydroxyapatite and other phosphates, and different calcium phosphate-based composites at mild synthetic conditions resulted in high reproducibility, high phase purity, and desired morphology. Thus, the sol-gel synthesis method enables the researchers to develop biomaterials with superior features in terms of biomedical applications.

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Environmentally benign fabrication of calcium hydroxyapatite using seashells collected in Baltic Sea countries: A comparative study

Cited by 16 publications

References 17 publications

Experimental and theoretical consideration of the factors influencing cationic pollutants retention by seashell waste

Experimental and theoretical consideration of the factors influencing cationic pollutants retention by seashell waste

A Review on Biphasic Calcium Phosphate Materials Derived from Fish Discards

Sol–gel synthesis of calcium phosphate-based biomaterials—A review of environmentally benign, simple, and effective synthesis routes

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