Dogfish egg case structural studies by ATR FT-IR and FT-Raman spectroscopy

Iconomidou, Vassiliki A.; Georgaka, Martha E.; Chryssikos, Georgios D.; Gionis, Vassilis; Megalofonou, Persefoni; Hamodrakas, Stavros J.

doi:10.1016/j.ijbiomac.2007.01.002

Cited by 13 publications

(8 citation statements)

References 40 publications

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“…2e). The lines are, respectively: 855 cm À1 and 921 cm À1 , n(C-C) of proline ring; 876 cm À1 , n(C-C) of hydroxyproline ring; 1004 cm À1 and 1032 cm À1 , n(C-C) of aromatic ring breathing of phenylalanine (Kubisz and Po1omska, 2007;Ikoma et al, 2003;Iconomidou et al, 2007). This spectrum is for brighter location, for darker one the respective lines are detected with much more difficulty.…”

Section: Resultsmentioning

confidence: 92%

Investigation of chemical changes in bone material from South African fossil hominid deposits

Kuczumow

Cukrowska

Stachniuk

et al. 2010

Journal of Archaeological Science

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Section: Resultsmentioning

confidence: 92%

Investigation of chemical changes in bone material from South African fossil hominid deposits

Kuczumow

Cukrowska

Stachniuk

et al. 2010

Journal of Archaeological Science

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“…The effective penetration depth is on the order of a fraction of wavelength into the parchment and is typically less than 1 lm. 14 It is known that the surface of historical parchments are often extensively degraded; 15 therefore, analysis at the surface level would not provide an accurate assessment of the parchment. To analyze the degraded state of the parchment we scraped the grain surface (approximately 50 lm was removed) before analysis and compared these absorption values against the results from a transmission technique, typically XRD.…”

Section: Methodsmentioning

confidence: 99%

Use of Attenuated Total Reflection—Fourier Transform Infrared Spectroscopy to Measure Collagen Degradation in Historical Parchments

Gonzalez

Wess

2008

Appl Spectrosc

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Developing a noninvasive method to assess the degraded state of historical parchments is essential to providing the best possible care for these documents. The conformational changes observed when collagen molecules, the primary constituent of parchment, unfold have been analyzed using attenuated total reflection-Fourier transform infrared (ATR-FT-IR) spectroscopy and the nanoscopic structural changes have been analyzed using X-ray diffraction (XRD). The relationship between the results obtained from these techniques was studied using principal component analysis, where correlation was found. The extent of gelatinization of historical parchments has been assessed using ATR-FT-IR and XRD and the frequency shifts observed as collagen degrades into gelatin have been reported. These results indicate that collagen degradation can be measured noninvasively in parchment and demonstrate the utility of ATR-FT-IR spectroscopy as a method to investigate historical documents.

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“…Collagen is not present in plants, bacteria, and viruses. To meet the needs of biomedical, pharmaceutical, and cosmetic industries, it is obtained mainly from fungi, fish skin, and scales, as well as from rat tails, pig and beef tissues, and also from sea sponges, jellyfish, and egg capsules of the dogfish [21][22][23][24][25][26][27].…”

Section: Collagenmentioning

confidence: 99%

Collagen-Based Materials Modified by Phenolic Acids—A Review

Kaczmarek

Mazur

2020

Materials

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Collagen-based biomaterials constitute one of the most widely studied types of materials for biomedical applications. Low thermal and mechanical parameters are the main disadvantages of such structures. Moreover, they present low stability in the case of degradation by collagenase. To improve the properties of collagen-based materials, different types of cross-linkers have been researched. In recent years, phenolic acids have been studied as collagen modifiers. Mainly, tannic acid has been tested for collagen modification as it interacts with a polymeric chain by strong hydrogen bonds. When compared to pure collagen, such complexes show both antimicrobial activity and improved physicochemical properties. Less research reporting on other phenolic acids has been published. This review is a summary of the present knowledge about phenolic acids (e.g., tannic, ferulic, gallic, and caffeic acid) application as collagen cross-linkers. The studies concerning collagen-based materials with phenolic acids are summarized and discussed.

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Dogfish egg case structural studies by ATR FT-IR and FT-Raman spectroscopy

Cited by 13 publications

References 40 publications

Investigation of chemical changes in bone material from South African fossil hominid deposits

Investigation of chemical changes in bone material from South African fossil hominid deposits

Use of Attenuated Total Reflection—Fourier Transform Infrared Spectroscopy to Measure Collagen Degradation in Historical Parchments

Collagen-Based Materials Modified by Phenolic Acids—A Review

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