Growth of Hydroxyapatite Nanocrystals in Aqueous Microgels

2009 ◽  
pp. 141-148
Author(s):  
Susann Schachschal ◽  
Andrij Pich ◽  
Hans-Juergen Adler
Keyword(s):  
Hydroxyapatite Nanocrystals

Rapid Collagen-Directed Mineralization of Calcium Fluoride Nanocrystals with Periodically Patterned Nanostructure

Nanoscale ◽  
2021 ◽  
Author(s):  
Weijian Fang ◽  
Hang Ping ◽  
Wolfgang Wagermaier ◽  
Shenbao Jin ◽  
Shahrouz Amini ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Calcium Fluoride ◽  
Periodic Structures ◽  
Collagen Fibrils ◽  
Hydroxyapatite Nanocrystals

Collagen fibrils present periodic structures, which provide space for intrafibrillar growth of oriented hydroxyapatite nanocrystals in bone and contribute to the good mechanical properties of bone. However, there are not...

scholarly journals Mechanical Enhancement of Cytocompatible 3D Scaffolds, Consisting of Hydroxyapatite Nanocrystals and Natural Biomolecules, Through Physical Cross-Linking

2020 ◽  
Vol 7 (3) ◽  
pp. 96
Author(s):  
Despoina Brasinika ◽  
Elias P. Koumoulos ◽  
Kyriaki Kyriakidou ◽  
Eleni Gkartzou ◽  
Maria Kritikou ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Cell Attachment ◽  
Great Promise ◽  
Porous Network ◽  
Mechanical Reinforcement ◽  
Experimental Conditions ◽  
Tissue Properties ◽  
Human Osteosarcoma Cells ◽  
Hydroxyapatite Nanocrystals ◽  
Physical Crosslinking

Bioinspired scaffolds mimicking natural bone-tissue properties holds great promise in tissue engineering applications towards bone regeneration. Within this work, a way to reinforce mechanical behavior of bioinspired bone scaffolds was examined by applying a physical crosslinking method. Scaffolds consisted of hydroxyapatite nanocrystals, biomimetically synthesized in the presence of collagen and l-arginine. Scaffolds were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy (SEM), microcomputed tomography, and nanoindentation. Results revealed scaffolds with bone-like nanostructure and composition, thus an inherent enhanced cytocompatibility. Evaluation of porosity proved the development of interconnected porous network with bimodal pore size distribution. Mechanical reinforcement was achieved through physical crosslinking with riboflavin irradiation, and nanoindentation tests indicated that within the experimental conditions of 45% humidity and 37 °C, photo-crosslinking led to an increase in the scaffold’s mechanical properties. Elastic modulus and hardness were augmented, and specifically elastic modulus values were doubled, approaching equivalent values of trabecular bone. Cytocompatibility of the scaffolds was assessed using MG63 human osteosarcoma cells. Cell viability was evaluated by double staining and MTT assay, while attachment and morphology were investigated by SEM. The results suggested that scaffolds provided a cell friendly environment with high levels of viability, thus supporting cell attachment, spreading and proliferation.

scholarly journals Facile solution-based synthesis of impurity-free hydroxyapatite nanocrystals at ambient conditions

2021 ◽  
Author(s):  
Hossein Karampour ◽  
Mohammad Ahmadi Parsa ◽  
Ali Heidary Moghadam ◽  
Bahram Pourhasan ◽  
Rouholah Ashiri
Keyword(s):  
Ambient Conditions ◽  
Hydroxyapatite Nanocrystals

The Remineralizing Effect of Carbonate-Hydroxyapatite Nanocrystals on Dentine

2007 ◽  
pp. 602-605
Author(s):  
Lia Rimondini ◽  
Barbara Palazzo ◽  
Michele Iafisco ◽  
Lorenza Canegallo ◽  
Federica Demarosi ◽  
...  
Keyword(s):  
Carbonate Hydroxyapatite ◽  
Hydroxyapatite Nanocrystals

scholarly journals Heavy metal removal from aqueous systems using hydroxyapatite nanocrystals derived from clam shells

RSC Advances ◽  
2019 ◽  
Vol 9 (40) ◽  
pp. 22883-22890 ◽  
Author(s):  
Dariela Núñez ◽  
Jon Ander Serrano ◽  
Aritz Mancisidor ◽  
Elizabeth Elgueta ◽  
Kokkarachedu Varaprasad ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Column Experiments ◽  
Aqueous Systems ◽  
Hydroxyapatite Nanocrystals ◽  
P Removal

Removal of Pb(ii), Cu(ii) and Cd(ii) was attained using hydroxyapatite nanocrystals derived from clam shells, in batch and column experiments.

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