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Palhares TN, de Menezes LR, Kronemberger GS, Borchio PGDM, Baptista LS, Pereira LDCB, da Silva EO. Production and Characterization of Poly (Lactic Acid)/Nanostructured Carboapatite for 3D Printing of Bioactive Scaffolds for Bone Tissue Engineering. 3D PRINTING AND ADDITIVE MANUFACTURING 2021; 8:227-237. [PMID: 36654836 PMCID: PMC9828613 DOI: 10.1089/3dp.2020.0211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Biocompatible scaffolds are porous matrices that are bone substitutes with great potential in tissue regeneration. For this, these scaffolds need to have bioactivity and biodegradability. From this perspective, 3D printing presents itself as one of the techniques with the greatest potential for scaffold manufacturing with porosity and established structure, based on 3D digital modeling. Thus, the objective of the present work was to produce 3D scaffolds from the poly (lactic acid) (PLA) and the nanostructured hydroxyapatite doped with carbonate ions (CHA). For this purpose, filaments were produced via fusion for the fused-filament 3D printing and used to produce scaffolds with 50% porosity in the cubic shape and 0/90°configuration. The dispersive energy spectroscopy and Fourier transform infrared spectroscopy (FTIR) analysis demonstrated the presence of CHA in the polymeric matrix, confirming the presence and incorporation into the composite. The thermogravimetric analysis made it possible to determine that the filler concentration incorporated in the matrix was very similar to the proposed percentage, indicating that there were no major losses in the process of obtaining the filaments. It can be assumed that the influence of CHA as a filler presents better mechanical properties up to a certain amount. The biological results point to a great potential for the application of PLA/CHA scaffolds in bone tissue engineering with effective cell adhesion, proliferation, biocompatibility, and no cytotoxicity effects.
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Affiliation(s)
- Thiago Nunes Palhares
- Instituto de Macromoléculas Professora Eloisa Mano (IMA), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
- Coordenação de Matéria Condensada, Física Aplicada e Nanociência (COMAN), Centro Brasileiro de Pesquisas Físicas, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Lívia Rodrigues de Menezes
- Instituto de Macromoléculas Professora Eloisa Mano (IMA), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gabriela Soares Kronemberger
- Núcleo Multidisciplinar de Pesquisa (Numpex-Bio), Universidade Federal do Rio de Janeiro, Duque de Caxias, Rio de Janeiro, Brazil
- Laboratório de Bioengenharia Tecidual (Labio), Instituto Nacional de Metrologia Qualidade e Tecnologia, Duque de Caxias, Rio de Janeiro, Brazil
- Programa de Pós-graduação em Biomedicina Translacional (Biotrans), Unigranrio, Inmetro, UEZO, Duque de Caxias, Rio de Janeiro, Brazil
| | | | - Leandra Santos Baptista
- Núcleo Multidisciplinar de Pesquisa (Numpex-Bio), Universidade Federal do Rio de Janeiro, Duque de Caxias, Rio de Janeiro, Brazil
- Laboratório de Bioengenharia Tecidual (Labio), Instituto Nacional de Metrologia Qualidade e Tecnologia, Duque de Caxias, Rio de Janeiro, Brazil
- Programa de Pós-graduação em Biomedicina Translacional (Biotrans), Unigranrio, Inmetro, UEZO, Duque de Caxias, Rio de Janeiro, Brazil
| | - Leonardo da Cunha Boldrini Pereira
- Núcleo Multidisciplinar de Pesquisa (Numpex-Bio), Universidade Federal do Rio de Janeiro, Duque de Caxias, Rio de Janeiro, Brazil
- Programa de Pós-graduação em Biomedicina Translacional (Biotrans), Unigranrio, Inmetro, UEZO, Duque de Caxias, Rio de Janeiro, Brazil
| | - Emerson Oliveira da Silva
- Instituto de Macromoléculas Professora Eloisa Mano (IMA), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
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Green synthesis of bioactive oligopeptides promoted by recyclable nanocrystalline hydroxyapatite. Future Med Chem 2020; 12:479-491. [DOI: 10.4155/fmc-2019-0320] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Aim: The pharmaceutical industry is showing renewed interest in therapeutic peptides. Unfortunately, the chemical synthesis of peptides remains very expensive and problematic in terms of environmental sustainability. Hence, making peptides ‘greener’ has become a new front line for the expansion of peptide market. Results: We developed a mechanochemical solvent-free peptide bond-forming protocol using standard reagents and nanocrystalline hydroxyapatite as a bio-compatible, reusable inorganic base. The reaction was also conducted under ultra-mild, minimal solvent-grinding conditions, using common laboratory equipment. Conclusion: The efficacy of the described protocol was validated with the convenient preparation of endomorphin-1, H-Tyr-Pro-Trp-Phe-NH2, the endogenous ligand of the μ-opioid receptor, currently regarded as a lead for the discovery of painkillers devoid of harmful side effects.
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Zhou R, Li Y, Xiao D, Li T, Zhang T, Fu W, Lin Y. Hyaluronan-directed fabrication of co-doped hydroxyapatite as a dual-modal probe for tumor-specific bioimaging. J Mater Chem B 2020; 8:2107-2114. [PMID: 32068216 DOI: 10.1039/c9tb02787d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Hyaluronan-directed fabrication of Eu/Ba co-doped hydroxyapatite nanocrystals with recognition capability for dual-modal bioimaging.
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Affiliation(s)
- Ronghui Zhou
- State Key Laboratory of Oral Diseases
- National Clinical Research Center for Oral Diseases
- West China Hospital of Stomatology
- Sichuan University
- Chengdu 610041
| | - Yanjing Li
- State Key Laboratory of Oral Diseases
- National Clinical Research Center for Oral Diseases
- West China Hospital of Stomatology
- Sichuan University
- Chengdu 610041
| | - Dexuan Xiao
- State Key Laboratory of Oral Diseases
- National Clinical Research Center for Oral Diseases
- West China Hospital of Stomatology
- Sichuan University
- Chengdu 610041
| | - Ting Li
- State Key Laboratory of Oral Diseases
- National Clinical Research Center for Oral Diseases
- West China Hospital of Stomatology
- Sichuan University
- Chengdu 610041
| | - Tao Zhang
- State Key Laboratory of Oral Diseases
- National Clinical Research Center for Oral Diseases
- West China Hospital of Stomatology
- Sichuan University
- Chengdu 610041
| | - Wei Fu
- Department of Neurosurgery
- West China Hospital of Sichuan University
- Chengdu 610000
- P. R. China
| | - Yunfeng Lin
- State Key Laboratory of Oral Diseases
- National Clinical Research Center for Oral Diseases
- West China Hospital of Stomatology
- Sichuan University
- Chengdu 610041
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