Physics

Infrared

Nanotechnology

Organic chemistry

Mineralized tissues

Characterization (materials science)

Attenuated total reflection

Analytical Chemistry (journal)

Optics

Engineering

Enamel paint

Infrared spectroscopy

Composite material

Fourier transform infrared spectroscopy

Mineralogy

Chemistry

Mineral

Materials science

Apatite

Dentin

Chemical engineering

Applied Spectroscopy Reviews

Fourier transform infrared spectroscopy (FTIR) has been used extensively for chemical characterization of mineralized tissues in the past few decades. FTIR is an ideal technique to analyze chemical structural properties of natural materials, since the frequencies of several vibrational modes of organic and inorganic molecules are active in the infrared. This review discusses the use of FTIR methodology, highlighting the attenuated total reflection (ATR) sampling mode, particularly for characterization of enamel, dentin and bone tissues. Enamel, dentin and bone, are composed of an organic and a mineral phase. The mineral phase is characterized essentially as nonstoichiometric substituted apatite, being the carbonate and phosphate spectral peaks the main representative of these phase. Organic matrix of the post-eruptive enamel is small (∼1% weight (wt)). The dentin and bone organic phases are mainly composed of type I collagen that appears as spectral bands of amide I, amide II, amide III bands. Furthermore, synthetic apatite materials are being designed for total or partial replacement, restoration or augmentation of these biological tissues with FTIR assistance.

Fourier transform infrared spectroscopy (FTIR) application chemical characterization of enamel, dentin and bone