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Resonance Raman confirms partial haemoglobin preservation in dinosaur remains.

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Title: Resonance Raman confirms partial haemoglobin preservation in dinosaur remains.
Authors: Long, B. J. N.1 (AUTHOR), Zheng, W.2 (AUTHOR), Schweitzer, M.2,3 (AUTHOR), Hallen, H. D.1 (AUTHOR) Hans_Hallen@ncsu.edu
Source: Proceedings of the Royal Society A: Mathematical, Physical & Engineering Sciences. 9/1/2025, Vol. 481 Issue 2321, p1-18. 18p.
Subjects: Hemoglobins, Goethite, Fossils, Fossilization, Resonance Raman effect, Dinosaurs, Diagenesis
Abstract: Still soft, hollow, flexible structures morphologically consistent with blood vessels, vascular contents, cells (osteocytes) and collagenous matrix were recovered from demineralized bone of a number of Mesozoic vertebrate remains, but the origin of these materials is hotly debated, in part because it refutes taphonomic models of degradation. Here, we apply the double selectivity of resonance Raman (RR) to show the presence of haeme that is still bound to a protein moiety in these tissues. Evidence of haeme degradation is found. Additional data support a diagenetic pathway, showing that haeme is also bound to the mineral goethite. This suggests the dual role that iron may play in facilitating the cross-linking of organic residues and stabilizing those residues by association with an iron mineral. [ABSTRACT FROM AUTHOR]
Copyright of Proceedings of the Royal Society A: Mathematical, Physical & Engineering Sciences is the property of Royal Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 188518267
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  Data: Resonance Raman confirms partial haemoglobin preservation in dinosaur remains.
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  Data: <searchLink fieldCode="AR" term="%22Long%2C+B%2E+J%2E+N%2E%22">Long, B. J. N.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zheng%2C+W%2E%22">Zheng, W.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Schweitzer%2C+M%2E%22">Schweitzer, M.</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hallen%2C+H%2E+D%2E%22">Hallen, H. D.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> Hans_Hallen@ncsu.edu</i>
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  Data: <searchLink fieldCode="DE" term="%22Hemoglobins%22">Hemoglobins</searchLink><br /><searchLink fieldCode="DE" term="%22Goethite%22">Goethite</searchLink><br /><searchLink fieldCode="DE" term="%22Fossils%22">Fossils</searchLink><br /><searchLink fieldCode="DE" term="%22Fossilization%22">Fossilization</searchLink><br /><searchLink fieldCode="DE" term="%22Resonance+Raman+effect%22">Resonance Raman effect</searchLink><br /><searchLink fieldCode="DE" term="%22Dinosaurs%22">Dinosaurs</searchLink><br /><searchLink fieldCode="DE" term="%22Diagenesis%22">Diagenesis</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Still soft, hollow, flexible structures morphologically consistent with blood vessels, vascular contents, cells (osteocytes) and collagenous matrix were recovered from demineralized bone of a number of Mesozoic vertebrate remains, but the origin of these materials is hotly debated, in part because it refutes taphonomic models of degradation. Here, we apply the double selectivity of resonance Raman (RR) to show the presence of haeme that is still bound to a protein moiety in these tissues. Evidence of haeme degradation is found. Additional data support a diagenetic pathway, showing that haeme is also bound to the mineral goethite. This suggests the dual role that iron may play in facilitating the cross-linking of organic residues and stabilizing those residues by association with an iron mineral. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Proceedings of the Royal Society A: Mathematical, Physical & Engineering Sciences is the property of Royal Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1098/rspa.2025.0175
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 18
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    Subjects:
      – SubjectFull: Hemoglobins
        Type: general
      – SubjectFull: Goethite
        Type: general
      – SubjectFull: Fossils
        Type: general
      – SubjectFull: Fossilization
        Type: general
      – SubjectFull: Resonance Raman effect
        Type: general
      – SubjectFull: Dinosaurs
        Type: general
      – SubjectFull: Diagenesis
        Type: general
    Titles:
      – TitleFull: Resonance Raman confirms partial haemoglobin preservation in dinosaur remains.
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            NameFull: Zheng, W.
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            NameFull: Schweitzer, M.
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            NameFull: Hallen, H. D.
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            – D: 01
              M: 09
              Text: 9/1/2025
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              Y: 2025
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