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Calcified Tissue International

, Volume 95, Issue 5, pp 413–418 | Cite as

Studying Variations in Bone Composition at Nano-Scale Resolution: A Preliminary Report

  • Samuel Gourion-Arsiquaud
  • Curtis Marcott
  • Qichi Hu
  • Adele L. Boskey
Original Research

Abstract

Bone has a hierarchical structure extending from the micrometer to the nanometer scale. We report here the first analysis of non-human primate osteonal bone obtained using a spectrometer coupled to an AFM microscope (AFM-IR), with a resolution of 50–100 nm. Average spectra correspond to those observed with conventional FTIR spectroscopy. The following validated FTIR parameters were calculated based on intensities observed in scans covering ~60 µm from the osteon center: mineral content (1030/1660 cm−1), crystallinity (1030/1020 cm−1), collagen maturity (1660/1690 cm−1), and acid phosphate content (1128/1096 cm−1). A repeating pattern was found in most of these calculated IR parameters corresponding to the reported inter- and intra-lamellar spacing in human bone, indicating that AFM-IR measurements will be able to provide novel compositional information on the variation in bone at the nanometer level.

Keywords

AFM-IR Nano-IR Bone composition Osteonal bone Bone nano-structure 

Notes

Acknowledgments

Data for this study were collected at Anasys Instruments, Santa Barbara, CA. The study was supported by NIH grant AR041325. The authors are grateful to Dr. Judah Gerstein for editing the manuscript.

Conflict of Interest

Curt Marcott is a scientific advisor for Anasys Instruments; Qichi Hu is an employee of Anasys Instruments; Samuel Gourion-Arsiquaud and Adele Boskey have no conflicts of interest.

Human and Animal Rights and Informed Consent

The animal was from the colony at the Southwest National Primate Research Center/Southwest Foundation for Biomedical Research (SNPRC/SFBR, San Antonio, TX), and all procedures during its life at SNPRC/SFBR were approved by the Institutional Animal Care and Use Committee (IACUC) in accordance with established guidelines. The IACUC of the Hospital for Special Surgery approved the use of these biopsies.

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Samuel Gourion-Arsiquaud
    • 1
  • Curtis Marcott
    • 2
  • Qichi Hu
    • 3
  • Adele L. Boskey
    • 4
  1. 1.TRI PrincetonPrincetonUSA
  2. 2.Light Light SolutionsAthensUSA
  3. 3.Anasys InstrumentsSanta BarbaraUSA
  4. 4.Mineralized Tissue LaboratoryHospital for Special SurgeryNew YorkUSA

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