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Fig. 3 | Biomaterials Research

Fig. 3

From: Modulation of bioactive calcium phosphate micro/nanoparticle size and shape during in situ synthesis of photo-crosslinkable gelatin methacryloyl based nanocomposite hydrogels for 3D bioprinting and tissue engineering

Fig. 3

Analysis of CNP-gelatin-methacryloyl polymer samples, where (A) TNBS assay to estimate amount of free amino groups in the synthesized polymers (free amine groups present in pure gelatin was considered as 100%), (B) FTIR showing the changes in functional groups; (C) XRD of synthesized nanoparticle (CNP) and CNP GelMA, (D) TGA for the synthesized gels, (E-1,2) NMR spectra showing methacrylation of gelatin

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