Synthesis and Biological Properties of Alanine-Grafted Hydroxyapatite Nanoparticles

Hydroxyapatite attracts great attention as hard tissues implant material for bones and teeth. Its application in reconstructive medicine depends on its biocompatibility, which is in a function of composition and surface properties. The insertion of a protein element in the composition of implants ca...

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Main Authors: Bruna Carolina Dorm, Mônica Rosas Costa Iemma, Benedito Domingos Neto, Rauany Cristina Lopes Francisco, Ivana Dinić, Nenad Ignjatović, Smilja Marković, Marina Vuković, Srečo Škapin, Eliane Trovatti, Lidija Mančić
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Life
Subjects:
Online Access:https://www.mdpi.com/2075-1729/13/1/116
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author Bruna Carolina Dorm
Mônica Rosas Costa Iemma
Benedito Domingos Neto
Rauany Cristina Lopes Francisco
Ivana Dinić
Nenad Ignjatović
Smilja Marković
Marina Vuković
Srečo Škapin
Eliane Trovatti
Lidija Mančić
author_facet Bruna Carolina Dorm
Mônica Rosas Costa Iemma
Benedito Domingos Neto
Rauany Cristina Lopes Francisco
Ivana Dinić
Nenad Ignjatović
Smilja Marković
Marina Vuković
Srečo Škapin
Eliane Trovatti
Lidija Mančić
author_sort Bruna Carolina Dorm
collection DOAJ
description Hydroxyapatite attracts great attention as hard tissues implant material for bones and teeth. Its application in reconstructive medicine depends on its biocompatibility, which is in a function of composition and surface properties. The insertion of a protein element in the composition of implants can improve the cell adhesion and the osseointegration. Having this in mind, the proposal of this work was to develop L-alanine-grafted hydroxyapatite nanoparticles and to study their biocompatibility. Two L-alanine sources and three grafting methods were used for hydroxyapatite surface functionalization. The efficiency of grafting was determined based on X-ray powder diffraction, Fourier-transform infrared spectroscopy, thermal analyses, and field-emission scanning electron microscopy. The results indicated the formation of hydroxyapatite with 8–25 wt% of organic content, depending on the grafting method. Protein adsorption, cell adhesion, and viability studies were carried out to evaluate biological properties of grafted materials. The viability of MG-63 human osteoblastic cells following 24 h incubation with the alanine-grafted hydroxyapatite samples is well preserved, being in all cases above the viability of cells incubated with hydroxyapatite. The alanine-grafted hydroxyapatite prepared in situ and by simple mixture showed higher protein adsorption and cell adhesion, respectively, indicating their potential toward use in regenerative medicine.
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spelling doaj.art-80247f1dff144a49a9b53ff575ff98222023-11-30T23:08:15ZengMDPI AGLife2075-17292022-12-0113111610.3390/life13010116Synthesis and Biological Properties of Alanine-Grafted Hydroxyapatite NanoparticlesBruna Carolina Dorm0Mônica Rosas Costa Iemma1Benedito Domingos Neto2Rauany Cristina Lopes Francisco3Ivana Dinić4Nenad Ignjatović5Smilja Marković6Marina Vuković7Srečo Škapin8Eliane Trovatti9Lidija Mančić10Department of Health and Biological Sciences,Universidade de Araraquara-UNIARA, CEP, Araraquara 14801-340, BrazilDepartment of Health and Biological Sciences,Universidade de Araraquara-UNIARA, CEP, Araraquara 14801-340, BrazilDepartment of Health and Biological Sciences,Universidade de Araraquara-UNIARA, CEP, Araraquara 14801-340, BrazilDepartment of Health and Biological Sciences,Universidade de Araraquara-UNIARA, CEP, Araraquara 14801-340, BrazilInstitute of Technical Sciences of SASA, P.O. Box 377, 11000 Belgrade, SerbiaInstitute of Technical Sciences of SASA, P.O. Box 377, 11000 Belgrade, SerbiaInstitute of Technical Sciences of SASA, P.O. Box 377, 11000 Belgrade, SerbiaInnovative Centre, Faculty of Chemistry, University of Belgrade, P.O. Box 51 Belgrade, SerbiaJožef Stefan Institute, P.O. Box 3000 Ljubljana, SloveniaDepartment of Health and Biological Sciences,Universidade de Araraquara-UNIARA, CEP, Araraquara 14801-340, BrazilInstitute of Technical Sciences of SASA, P.O. Box 377, 11000 Belgrade, SerbiaHydroxyapatite attracts great attention as hard tissues implant material for bones and teeth. Its application in reconstructive medicine depends on its biocompatibility, which is in a function of composition and surface properties. The insertion of a protein element in the composition of implants can improve the cell adhesion and the osseointegration. Having this in mind, the proposal of this work was to develop L-alanine-grafted hydroxyapatite nanoparticles and to study their biocompatibility. Two L-alanine sources and three grafting methods were used for hydroxyapatite surface functionalization. The efficiency of grafting was determined based on X-ray powder diffraction, Fourier-transform infrared spectroscopy, thermal analyses, and field-emission scanning electron microscopy. The results indicated the formation of hydroxyapatite with 8–25 wt% of organic content, depending on the grafting method. Protein adsorption, cell adhesion, and viability studies were carried out to evaluate biological properties of grafted materials. The viability of MG-63 human osteoblastic cells following 24 h incubation with the alanine-grafted hydroxyapatite samples is well preserved, being in all cases above the viability of cells incubated with hydroxyapatite. The alanine-grafted hydroxyapatite prepared in situ and by simple mixture showed higher protein adsorption and cell adhesion, respectively, indicating their potential toward use in regenerative medicine.https://www.mdpi.com/2075-1729/13/1/116hydroxyapatitealanineamino acidsurface modificationcell adhesioncell viability
spellingShingle Bruna Carolina Dorm
Mônica Rosas Costa Iemma
Benedito Domingos Neto
Rauany Cristina Lopes Francisco
Ivana Dinić
Nenad Ignjatović
Smilja Marković
Marina Vuković
Srečo Škapin
Eliane Trovatti
Lidija Mančić
Synthesis and Biological Properties of Alanine-Grafted Hydroxyapatite Nanoparticles
Life
hydroxyapatite
alanine
amino acid
surface modification
cell adhesion
cell viability
title Synthesis and Biological Properties of Alanine-Grafted Hydroxyapatite Nanoparticles
title_full Synthesis and Biological Properties of Alanine-Grafted Hydroxyapatite Nanoparticles
title_fullStr Synthesis and Biological Properties of Alanine-Grafted Hydroxyapatite Nanoparticles
title_full_unstemmed Synthesis and Biological Properties of Alanine-Grafted Hydroxyapatite Nanoparticles
title_short Synthesis and Biological Properties of Alanine-Grafted Hydroxyapatite Nanoparticles
title_sort synthesis and biological properties of alanine grafted hydroxyapatite nanoparticles
topic hydroxyapatite
alanine
amino acid
surface modification
cell adhesion
cell viability
url https://www.mdpi.com/2075-1729/13/1/116
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