Contactless Vibrational Analysis of Transparent Hydrogel Structures Using Laser-Doppler Vibrometry
Background Investigating the mechanical properties of biological and biocompatible hydrogels is important in tissue engineering and biofabrication. Atomic force microscopy (AFM) and compression testing are routinely used to determine mechanical properties of tissue and tissue constructs. However, th...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Schwarz, S. [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2020 |
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| Schlagwörter: |
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| Anmerkung: |
© The Author(s) 2020 |
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| Übergeordnetes Werk: |
Enthalten in: Experimental mechanics - Springer US, 1961, 60(2020), 8 vom: 13. Juli, Seite 1067-1078 |
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| Übergeordnetes Werk: |
volume:60 ; year:2020 ; number:8 ; day:13 ; month:07 ; pages:1067-1078 |
| Links: |
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| DOI / URN: |
10.1007/s11340-020-00626-0 |
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| Katalog-ID: |
OLC2119563934 |
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| 245 | 1 | 0 | |a Contactless Vibrational Analysis of Transparent Hydrogel Structures Using Laser-Doppler Vibrometry |
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| 520 | |a Background Investigating the mechanical properties of biological and biocompatible hydrogels is important in tissue engineering and biofabrication. Atomic force microscopy (AFM) and compression testing are routinely used to determine mechanical properties of tissue and tissue constructs. However, these techniques are slow and require mechanical contact with the sample, rendering in situ measurements difficult. Objective We therefore aim at a fast and contactless method for determining the mechanical properties of biological hydrogels and investigate if an optical method, like Laser-Doppler vibrometry (LDV), can accomplish this task. Methods LDV is a fast contactless method for mechanical analysis. Nonetheless, LDV setups operating in the visible range of the optical spectrum are difficult to use for transparent materials, such as biological hydrogels, because LDV relies on reflected or back-scattered light from the sample. We therefore use a near-infrared (NIR) scanning LDV to determine the vibration spectra of cylindrical gelatin discs of different gelatin concentration and compare the results to AFM data and unconfined compression testing. Results We show that the gelatin test structures can be analyzed, using a NIR LDV, and the Young’s moduli can be deduced from the resonance frequencies of the first normal (0,1) mode of these structures. As expected, the frequency of this mode increases with the square root of the Young’s modulus and the damping constant increases exponentially with gelatin concentration, which underpins the validity of our approach. Conclusions Our results demonstrate that NIR wavelengths are suitable for a fast, contactless vibrational analysis of transparent hydrogel structures. | ||
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| 650 | 4 | |a Mechanical properties | |
| 650 | 4 | |a Biomaterials | |
| 650 | 4 | |a Atomic force microscopy (AFM) | |
| 650 | 4 | |a Compression testing | |
| 700 | 1 | |a Hartmann, B. |0 (orcid)0000-0002-9928-0860 |4 aut | |
| 700 | 1 | |a Sauer, J. |4 aut | |
| 700 | 1 | |a Burgkart, R. |4 aut | |
| 700 | 1 | |a Sudhop, S. |0 (orcid)0000-0002-0838-9503 |4 aut | |
| 700 | 1 | |a Rixen, D. J. |0 (orcid)0000-0002-2303-4292 |4 aut | |
| 700 | 1 | |a Clausen-Schaumann, H. |0 (orcid)0000-0002-9413-0310 |4 aut | |
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10.1007/s11340-020-00626-0 doi (DE-627)OLC2119563934 (DE-He213)s11340-020-00626-0-p DE-627 ger DE-627 rakwb eng 690 VZ Schwarz, S. verfasserin (orcid)0000-0002-9810-8794 aut Contactless Vibrational Analysis of Transparent Hydrogel Structures Using Laser-Doppler Vibrometry 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s) 2020 Background Investigating the mechanical properties of biological and biocompatible hydrogels is important in tissue engineering and biofabrication. Atomic force microscopy (AFM) and compression testing are routinely used to determine mechanical properties of tissue and tissue constructs. However, these techniques are slow and require mechanical contact with the sample, rendering in situ measurements difficult. Objective We therefore aim at a fast and contactless method for determining the mechanical properties of biological hydrogels and investigate if an optical method, like Laser-Doppler vibrometry (LDV), can accomplish this task. Methods LDV is a fast contactless method for mechanical analysis. Nonetheless, LDV setups operating in the visible range of the optical spectrum are difficult to use for transparent materials, such as biological hydrogels, because LDV relies on reflected or back-scattered light from the sample. We therefore use a near-infrared (NIR) scanning LDV to determine the vibration spectra of cylindrical gelatin discs of different gelatin concentration and compare the results to AFM data and unconfined compression testing. Results We show that the gelatin test structures can be analyzed, using a NIR LDV, and the Young’s moduli can be deduced from the resonance frequencies of the first normal (0,1) mode of these structures. As expected, the frequency of this mode increases with the square root of the Young’s modulus and the damping constant increases exponentially with gelatin concentration, which underpins the validity of our approach. Conclusions Our results demonstrate that NIR wavelengths are suitable for a fast, contactless vibrational analysis of transparent hydrogel structures. LDV Mechanical properties Biomaterials Atomic force microscopy (AFM) Compression testing Hartmann, B. (orcid)0000-0002-9928-0860 aut Sauer, J. aut Burgkart, R. aut Sudhop, S. (orcid)0000-0002-0838-9503 aut Rixen, D. J. (orcid)0000-0002-2303-4292 aut Clausen-Schaumann, H. (orcid)0000-0002-9413-0310 aut Enthalten in Experimental mechanics Springer US, 1961 60(2020), 8 vom: 13. Juli, Seite 1067-1078 (DE-627)129593990 (DE-600)240480-1 (DE-576)015086852 0014-4851 nnns volume:60 year:2020 number:8 day:13 month:07 pages:1067-1078 https://doi.org/10.1007/s11340-020-00626-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-PHY AR 60 2020 8 13 07 1067-1078 |
| spelling |
10.1007/s11340-020-00626-0 doi (DE-627)OLC2119563934 (DE-He213)s11340-020-00626-0-p DE-627 ger DE-627 rakwb eng 690 VZ Schwarz, S. verfasserin (orcid)0000-0002-9810-8794 aut Contactless Vibrational Analysis of Transparent Hydrogel Structures Using Laser-Doppler Vibrometry 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s) 2020 Background Investigating the mechanical properties of biological and biocompatible hydrogels is important in tissue engineering and biofabrication. Atomic force microscopy (AFM) and compression testing are routinely used to determine mechanical properties of tissue and tissue constructs. However, these techniques are slow and require mechanical contact with the sample, rendering in situ measurements difficult. Objective We therefore aim at a fast and contactless method for determining the mechanical properties of biological hydrogels and investigate if an optical method, like Laser-Doppler vibrometry (LDV), can accomplish this task. Methods LDV is a fast contactless method for mechanical analysis. Nonetheless, LDV setups operating in the visible range of the optical spectrum are difficult to use for transparent materials, such as biological hydrogels, because LDV relies on reflected or back-scattered light from the sample. We therefore use a near-infrared (NIR) scanning LDV to determine the vibration spectra of cylindrical gelatin discs of different gelatin concentration and compare the results to AFM data and unconfined compression testing. Results We show that the gelatin test structures can be analyzed, using a NIR LDV, and the Young’s moduli can be deduced from the resonance frequencies of the first normal (0,1) mode of these structures. As expected, the frequency of this mode increases with the square root of the Young’s modulus and the damping constant increases exponentially with gelatin concentration, which underpins the validity of our approach. Conclusions Our results demonstrate that NIR wavelengths are suitable for a fast, contactless vibrational analysis of transparent hydrogel structures. LDV Mechanical properties Biomaterials Atomic force microscopy (AFM) Compression testing Hartmann, B. (orcid)0000-0002-9928-0860 aut Sauer, J. aut Burgkart, R. aut Sudhop, S. (orcid)0000-0002-0838-9503 aut Rixen, D. J. (orcid)0000-0002-2303-4292 aut Clausen-Schaumann, H. (orcid)0000-0002-9413-0310 aut Enthalten in Experimental mechanics Springer US, 1961 60(2020), 8 vom: 13. Juli, Seite 1067-1078 (DE-627)129593990 (DE-600)240480-1 (DE-576)015086852 0014-4851 nnns volume:60 year:2020 number:8 day:13 month:07 pages:1067-1078 https://doi.org/10.1007/s11340-020-00626-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-PHY AR 60 2020 8 13 07 1067-1078 |
| allfields_unstemmed |
10.1007/s11340-020-00626-0 doi (DE-627)OLC2119563934 (DE-He213)s11340-020-00626-0-p DE-627 ger DE-627 rakwb eng 690 VZ Schwarz, S. verfasserin (orcid)0000-0002-9810-8794 aut Contactless Vibrational Analysis of Transparent Hydrogel Structures Using Laser-Doppler Vibrometry 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s) 2020 Background Investigating the mechanical properties of biological and biocompatible hydrogels is important in tissue engineering and biofabrication. Atomic force microscopy (AFM) and compression testing are routinely used to determine mechanical properties of tissue and tissue constructs. However, these techniques are slow and require mechanical contact with the sample, rendering in situ measurements difficult. Objective We therefore aim at a fast and contactless method for determining the mechanical properties of biological hydrogels and investigate if an optical method, like Laser-Doppler vibrometry (LDV), can accomplish this task. Methods LDV is a fast contactless method for mechanical analysis. Nonetheless, LDV setups operating in the visible range of the optical spectrum are difficult to use for transparent materials, such as biological hydrogels, because LDV relies on reflected or back-scattered light from the sample. We therefore use a near-infrared (NIR) scanning LDV to determine the vibration spectra of cylindrical gelatin discs of different gelatin concentration and compare the results to AFM data and unconfined compression testing. Results We show that the gelatin test structures can be analyzed, using a NIR LDV, and the Young’s moduli can be deduced from the resonance frequencies of the first normal (0,1) mode of these structures. As expected, the frequency of this mode increases with the square root of the Young’s modulus and the damping constant increases exponentially with gelatin concentration, which underpins the validity of our approach. Conclusions Our results demonstrate that NIR wavelengths are suitable for a fast, contactless vibrational analysis of transparent hydrogel structures. LDV Mechanical properties Biomaterials Atomic force microscopy (AFM) Compression testing Hartmann, B. (orcid)0000-0002-9928-0860 aut Sauer, J. aut Burgkart, R. aut Sudhop, S. (orcid)0000-0002-0838-9503 aut Rixen, D. J. (orcid)0000-0002-2303-4292 aut Clausen-Schaumann, H. (orcid)0000-0002-9413-0310 aut Enthalten in Experimental mechanics Springer US, 1961 60(2020), 8 vom: 13. Juli, Seite 1067-1078 (DE-627)129593990 (DE-600)240480-1 (DE-576)015086852 0014-4851 nnns volume:60 year:2020 number:8 day:13 month:07 pages:1067-1078 https://doi.org/10.1007/s11340-020-00626-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-PHY AR 60 2020 8 13 07 1067-1078 |
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10.1007/s11340-020-00626-0 doi (DE-627)OLC2119563934 (DE-He213)s11340-020-00626-0-p DE-627 ger DE-627 rakwb eng 690 VZ Schwarz, S. verfasserin (orcid)0000-0002-9810-8794 aut Contactless Vibrational Analysis of Transparent Hydrogel Structures Using Laser-Doppler Vibrometry 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s) 2020 Background Investigating the mechanical properties of biological and biocompatible hydrogels is important in tissue engineering and biofabrication. Atomic force microscopy (AFM) and compression testing are routinely used to determine mechanical properties of tissue and tissue constructs. However, these techniques are slow and require mechanical contact with the sample, rendering in situ measurements difficult. Objective We therefore aim at a fast and contactless method for determining the mechanical properties of biological hydrogels and investigate if an optical method, like Laser-Doppler vibrometry (LDV), can accomplish this task. Methods LDV is a fast contactless method for mechanical analysis. Nonetheless, LDV setups operating in the visible range of the optical spectrum are difficult to use for transparent materials, such as biological hydrogels, because LDV relies on reflected or back-scattered light from the sample. We therefore use a near-infrared (NIR) scanning LDV to determine the vibration spectra of cylindrical gelatin discs of different gelatin concentration and compare the results to AFM data and unconfined compression testing. Results We show that the gelatin test structures can be analyzed, using a NIR LDV, and the Young’s moduli can be deduced from the resonance frequencies of the first normal (0,1) mode of these structures. As expected, the frequency of this mode increases with the square root of the Young’s modulus and the damping constant increases exponentially with gelatin concentration, which underpins the validity of our approach. Conclusions Our results demonstrate that NIR wavelengths are suitable for a fast, contactless vibrational analysis of transparent hydrogel structures. LDV Mechanical properties Biomaterials Atomic force microscopy (AFM) Compression testing Hartmann, B. (orcid)0000-0002-9928-0860 aut Sauer, J. aut Burgkart, R. aut Sudhop, S. (orcid)0000-0002-0838-9503 aut Rixen, D. J. (orcid)0000-0002-2303-4292 aut Clausen-Schaumann, H. (orcid)0000-0002-9413-0310 aut Enthalten in Experimental mechanics Springer US, 1961 60(2020), 8 vom: 13. Juli, Seite 1067-1078 (DE-627)129593990 (DE-600)240480-1 (DE-576)015086852 0014-4851 nnns volume:60 year:2020 number:8 day:13 month:07 pages:1067-1078 https://doi.org/10.1007/s11340-020-00626-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-PHY AR 60 2020 8 13 07 1067-1078 |
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10.1007/s11340-020-00626-0 doi (DE-627)OLC2119563934 (DE-He213)s11340-020-00626-0-p DE-627 ger DE-627 rakwb eng 690 VZ Schwarz, S. verfasserin (orcid)0000-0002-9810-8794 aut Contactless Vibrational Analysis of Transparent Hydrogel Structures Using Laser-Doppler Vibrometry 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s) 2020 Background Investigating the mechanical properties of biological and biocompatible hydrogels is important in tissue engineering and biofabrication. Atomic force microscopy (AFM) and compression testing are routinely used to determine mechanical properties of tissue and tissue constructs. However, these techniques are slow and require mechanical contact with the sample, rendering in situ measurements difficult. Objective We therefore aim at a fast and contactless method for determining the mechanical properties of biological hydrogels and investigate if an optical method, like Laser-Doppler vibrometry (LDV), can accomplish this task. Methods LDV is a fast contactless method for mechanical analysis. Nonetheless, LDV setups operating in the visible range of the optical spectrum are difficult to use for transparent materials, such as biological hydrogels, because LDV relies on reflected or back-scattered light from the sample. We therefore use a near-infrared (NIR) scanning LDV to determine the vibration spectra of cylindrical gelatin discs of different gelatin concentration and compare the results to AFM data and unconfined compression testing. Results We show that the gelatin test structures can be analyzed, using a NIR LDV, and the Young’s moduli can be deduced from the resonance frequencies of the first normal (0,1) mode of these structures. As expected, the frequency of this mode increases with the square root of the Young’s modulus and the damping constant increases exponentially with gelatin concentration, which underpins the validity of our approach. Conclusions Our results demonstrate that NIR wavelengths are suitable for a fast, contactless vibrational analysis of transparent hydrogel structures. LDV Mechanical properties Biomaterials Atomic force microscopy (AFM) Compression testing Hartmann, B. (orcid)0000-0002-9928-0860 aut Sauer, J. aut Burgkart, R. aut Sudhop, S. (orcid)0000-0002-0838-9503 aut Rixen, D. J. (orcid)0000-0002-2303-4292 aut Clausen-Schaumann, H. (orcid)0000-0002-9413-0310 aut Enthalten in Experimental mechanics Springer US, 1961 60(2020), 8 vom: 13. Juli, Seite 1067-1078 (DE-627)129593990 (DE-600)240480-1 (DE-576)015086852 0014-4851 nnns volume:60 year:2020 number:8 day:13 month:07 pages:1067-1078 https://doi.org/10.1007/s11340-020-00626-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-PHY AR 60 2020 8 13 07 1067-1078 |
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We therefore use a near-infrared (NIR) scanning LDV to determine the vibration spectra of cylindrical gelatin discs of different gelatin concentration and compare the results to AFM data and unconfined compression testing. Results We show that the gelatin test structures can be analyzed, using a NIR LDV, and the Young’s moduli can be deduced from the resonance frequencies of the first normal (0,1) mode of these structures. As expected, the frequency of this mode increases with the square root of the Young’s modulus and the damping constant increases exponentially with gelatin concentration, which underpins the validity of our approach. 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Schwarz, S. |
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contactless vibrational analysis of transparent hydrogel structures using laser-doppler vibrometry |
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Contactless Vibrational Analysis of Transparent Hydrogel Structures Using Laser-Doppler Vibrometry |
| abstract |
Background Investigating the mechanical properties of biological and biocompatible hydrogels is important in tissue engineering and biofabrication. Atomic force microscopy (AFM) and compression testing are routinely used to determine mechanical properties of tissue and tissue constructs. However, these techniques are slow and require mechanical contact with the sample, rendering in situ measurements difficult. Objective We therefore aim at a fast and contactless method for determining the mechanical properties of biological hydrogels and investigate if an optical method, like Laser-Doppler vibrometry (LDV), can accomplish this task. Methods LDV is a fast contactless method for mechanical analysis. Nonetheless, LDV setups operating in the visible range of the optical spectrum are difficult to use for transparent materials, such as biological hydrogels, because LDV relies on reflected or back-scattered light from the sample. We therefore use a near-infrared (NIR) scanning LDV to determine the vibration spectra of cylindrical gelatin discs of different gelatin concentration and compare the results to AFM data and unconfined compression testing. Results We show that the gelatin test structures can be analyzed, using a NIR LDV, and the Young’s moduli can be deduced from the resonance frequencies of the first normal (0,1) mode of these structures. As expected, the frequency of this mode increases with the square root of the Young’s modulus and the damping constant increases exponentially with gelatin concentration, which underpins the validity of our approach. Conclusions Our results demonstrate that NIR wavelengths are suitable for a fast, contactless vibrational analysis of transparent hydrogel structures. © The Author(s) 2020 |
| abstractGer |
Background Investigating the mechanical properties of biological and biocompatible hydrogels is important in tissue engineering and biofabrication. Atomic force microscopy (AFM) and compression testing are routinely used to determine mechanical properties of tissue and tissue constructs. However, these techniques are slow and require mechanical contact with the sample, rendering in situ measurements difficult. Objective We therefore aim at a fast and contactless method for determining the mechanical properties of biological hydrogels and investigate if an optical method, like Laser-Doppler vibrometry (LDV), can accomplish this task. Methods LDV is a fast contactless method for mechanical analysis. Nonetheless, LDV setups operating in the visible range of the optical spectrum are difficult to use for transparent materials, such as biological hydrogels, because LDV relies on reflected or back-scattered light from the sample. We therefore use a near-infrared (NIR) scanning LDV to determine the vibration spectra of cylindrical gelatin discs of different gelatin concentration and compare the results to AFM data and unconfined compression testing. Results We show that the gelatin test structures can be analyzed, using a NIR LDV, and the Young’s moduli can be deduced from the resonance frequencies of the first normal (0,1) mode of these structures. As expected, the frequency of this mode increases with the square root of the Young’s modulus and the damping constant increases exponentially with gelatin concentration, which underpins the validity of our approach. Conclusions Our results demonstrate that NIR wavelengths are suitable for a fast, contactless vibrational analysis of transparent hydrogel structures. © The Author(s) 2020 |
| abstract_unstemmed |
Background Investigating the mechanical properties of biological and biocompatible hydrogels is important in tissue engineering and biofabrication. Atomic force microscopy (AFM) and compression testing are routinely used to determine mechanical properties of tissue and tissue constructs. However, these techniques are slow and require mechanical contact with the sample, rendering in situ measurements difficult. Objective We therefore aim at a fast and contactless method for determining the mechanical properties of biological hydrogels and investigate if an optical method, like Laser-Doppler vibrometry (LDV), can accomplish this task. Methods LDV is a fast contactless method for mechanical analysis. Nonetheless, LDV setups operating in the visible range of the optical spectrum are difficult to use for transparent materials, such as biological hydrogels, because LDV relies on reflected or back-scattered light from the sample. We therefore use a near-infrared (NIR) scanning LDV to determine the vibration spectra of cylindrical gelatin discs of different gelatin concentration and compare the results to AFM data and unconfined compression testing. Results We show that the gelatin test structures can be analyzed, using a NIR LDV, and the Young’s moduli can be deduced from the resonance frequencies of the first normal (0,1) mode of these structures. As expected, the frequency of this mode increases with the square root of the Young’s modulus and the damping constant increases exponentially with gelatin concentration, which underpins the validity of our approach. Conclusions Our results demonstrate that NIR wavelengths are suitable for a fast, contactless vibrational analysis of transparent hydrogel structures. © The Author(s) 2020 |
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We therefore use a near-infrared (NIR) scanning LDV to determine the vibration spectra of cylindrical gelatin discs of different gelatin concentration and compare the results to AFM data and unconfined compression testing. Results We show that the gelatin test structures can be analyzed, using a NIR LDV, and the Young’s moduli can be deduced from the resonance frequencies of the first normal (0,1) mode of these structures. As expected, the frequency of this mode increases with the square root of the Young’s modulus and the damping constant increases exponentially with gelatin concentration, which underpins the validity of our approach. 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