Optimization and validation of cryostat temperature conditions for trans-reflectance mode FTIR microspectroscopic imaging of biological tissues
In Fourier transform infrared (FTIR) microspectrocopy, the tissue preparation method is crucial, especially how the tissue is cryo-sectioned prior to the imaging requires special consideration. Having a temperature difference between the cutting blade and the specimen holder of the cryostat greatly...
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Elsevier
2017-01-01
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| Series: | MethodsX |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2215016117300067 |
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| author | Sumedha Liyanage Rohan S. Dassanayake Amal Bouyanfif Erandathi Rajakaruna Latha Ramalingam Naima Moustaid-Moussa Noureddine Abidi |
| author_facet | Sumedha Liyanage Rohan S. Dassanayake Amal Bouyanfif Erandathi Rajakaruna Latha Ramalingam Naima Moustaid-Moussa Noureddine Abidi |
| author_sort | Sumedha Liyanage |
| collection | DOAJ |
| description | In Fourier transform infrared (FTIR) microspectrocopy, the tissue preparation method is crucial, especially how the tissue is cryo-sectioned prior to the imaging requires special consideration. Having a temperature difference between the cutting blade and the specimen holder of the cryostat greatly affects the quality of the sections. Therefore, we have developed an optimal protocol for cryo-sectioning of biological tissues by varying the temperature of both the cutting blade and the specimen holder. Using this protocol, we successfully cryo-sectioned four different difficult-to-section tissues including white adipose tissue (WAT), brown adipose tissue (BAT), lung, and liver. The optimal temperatures that required to be maintained at the cutting blade and the specimen holder for the cryo-sectioning of WAT, BAT, lung, and liver are (−25, −20 °C), (−25, −20 °C), (−17, −13 °C) and (−15, −5 °C), respectively. The optimized protocol developed in this study produced high quality cryo-sections with sample thickness of 8–10 μm, as well as high quality trans-reflectance mode FTIR microspectroscopic images for the tissue sections.
• Use of cryostat technique to make thin sections of biological samples for FTIR microspectroscopy imaging.
• Optimized cryostat temperature conditions by varying the temperatures at the cutting blade and specimen holder to obtain high quality sections of difficult-to-handle tissues.
• FTIR imaging is used to obtain chemical information from cryo-sectioned samples with no interference of the conventional paraffin-embedding agent and chemicals. |
| first_indexed | 2024-12-14T21:22:06Z |
| format | Article |
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| issn | 2215-0161 |
| language | English |
| last_indexed | 2024-12-14T21:22:06Z |
| publishDate | 2017-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | MethodsX |
| spelling | doaj.art-9999359e2ee1437aa3ea7ef153de19e92022-12-21T22:46:54ZengElsevierMethodsX2215-01612017-01-014C11812710.1016/j.mex.2017.01.006Optimization and validation of cryostat temperature conditions for trans-reflectance mode FTIR microspectroscopic imaging of biological tissuesSumedha Liyanage0Rohan S. Dassanayake1Amal Bouyanfif2Erandathi Rajakaruna3Latha Ramalingam4Naima Moustaid-Moussa5Noureddine Abidi6Fiber and Biopolymer Research Institute, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX 79403, USAFiber and Biopolymer Research Institute, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX 79403, USAFiber and Biopolymer Research Institute, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX 79403, USAFiber and Biopolymer Research Institute, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX 79403, USADepartment of Nutritional Sciences, Texas Tech University, Lubbock, TX 79409, USADepartment of Nutritional Sciences, Texas Tech University, Lubbock, TX 79409, USAFiber and Biopolymer Research Institute, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX 79403, USAIn Fourier transform infrared (FTIR) microspectrocopy, the tissue preparation method is crucial, especially how the tissue is cryo-sectioned prior to the imaging requires special consideration. Having a temperature difference between the cutting blade and the specimen holder of the cryostat greatly affects the quality of the sections. Therefore, we have developed an optimal protocol for cryo-sectioning of biological tissues by varying the temperature of both the cutting blade and the specimen holder. Using this protocol, we successfully cryo-sectioned four different difficult-to-section tissues including white adipose tissue (WAT), brown adipose tissue (BAT), lung, and liver. The optimal temperatures that required to be maintained at the cutting blade and the specimen holder for the cryo-sectioning of WAT, BAT, lung, and liver are (−25, −20 °C), (−25, −20 °C), (−17, −13 °C) and (−15, −5 °C), respectively. The optimized protocol developed in this study produced high quality cryo-sections with sample thickness of 8–10 μm, as well as high quality trans-reflectance mode FTIR microspectroscopic images for the tissue sections. • Use of cryostat technique to make thin sections of biological samples for FTIR microspectroscopy imaging. • Optimized cryostat temperature conditions by varying the temperatures at the cutting blade and specimen holder to obtain high quality sections of difficult-to-handle tissues. • FTIR imaging is used to obtain chemical information from cryo-sectioned samples with no interference of the conventional paraffin-embedding agent and chemicals.http://www.sciencedirect.com/science/article/pii/S2215016117300067Cryo-sectioning and FTIR microspectroscopic imaging of biological tissues |
| spellingShingle | Sumedha Liyanage Rohan S. Dassanayake Amal Bouyanfif Erandathi Rajakaruna Latha Ramalingam Naima Moustaid-Moussa Noureddine Abidi Optimization and validation of cryostat temperature conditions for trans-reflectance mode FTIR microspectroscopic imaging of biological tissues MethodsX Cryo-sectioning and FTIR microspectroscopic imaging of biological tissues |
| title | Optimization and validation of cryostat temperature conditions for trans-reflectance mode FTIR microspectroscopic imaging of biological tissues |
| title_full | Optimization and validation of cryostat temperature conditions for trans-reflectance mode FTIR microspectroscopic imaging of biological tissues |
| title_fullStr | Optimization and validation of cryostat temperature conditions for trans-reflectance mode FTIR microspectroscopic imaging of biological tissues |
| title_full_unstemmed | Optimization and validation of cryostat temperature conditions for trans-reflectance mode FTIR microspectroscopic imaging of biological tissues |
| title_short | Optimization and validation of cryostat temperature conditions for trans-reflectance mode FTIR microspectroscopic imaging of biological tissues |
| title_sort | optimization and validation of cryostat temperature conditions for trans reflectance mode ftir microspectroscopic imaging of biological tissues |
| topic | Cryo-sectioning and FTIR microspectroscopic imaging of biological tissues |
| url | http://www.sciencedirect.com/science/article/pii/S2215016117300067 |
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