The biocompatibility of carbon hydroxyapatite/β-glucan composite for bone tissue engineering studied with Raman and FTIR spectroscopic imaging

Abstrakt

The spectroscopic approaches of FTIR imaging and Raman mapping were applied to the characterisation of a new carbon hydroxyapatite/β-glucan composite developed for bone tissue engineering. The composite is an artificial bone material with an apatite-forming ability for the bone repair process. Rabbit bone samples were tested with an implanted bioactive material for a period of several months. Using spectroscopic and chemometric methods, we were able to determine the presence of amides and phosphates and the distribution of lipid-rich domains in the bone tissue, providing an assessment of the composite’s bioactivity. Samples were also imaged in transmission using an infrared microscope combined with a focal plane array detector. CaF2 lenses were also used on the infrared microscope to improve spectral quality by reducing scattering artefacts, improving chemometric analysis. The presence of collagen and lipids at the bone/composite interface confirmed biocompatibility and demonstrate the suitability of FTIR microscopic imaging with lenses in studying these samples. It confirmed that the composite is a very good background for collagen growth and increases collagen maturity with the time of the bone growth process. The results indicate the bioactive and biocompatible properties of this composite and demonstrate how Raman and FTIR spectroscopic imaging have been used as an effective tool for tissue characterisation.

Autorzy

Anna Sroka-Bartnicka
Anna Sroka-Bartnicka
James A. Kimber
James A. Kimber
Leszek Borkowski
Leszek Borkowski
Anna Belcarz
Anna Belcarz
Krzysztof Jóźwiak
Krzysztof Jóźwiak
Grażyna Ginalska
Grażyna Ginalska
Sergei G. Kazarian
Sergei G. Kazarian
artykuł
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
Angielski
2015
407
25
7775-7785
35
3,125
39
33