A Novel Microchip Technique for Quickly Identifying Nanogranules in an Aqueous Solution by Transmission Electron Microscopy: Imaging of Platelet Granules

Ultrastructural observation of biological specimens or nanogranules usually requires the use of electron microscopy. Electron microscopy takes a lot of time, requires many steps, and uses many chemicals, which may affect the native state of biological specimens. A novel microchip (K-kit) was used as...

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Main Authors: Nguyen Thi Thu Trang, Jungshan Chang, Wei-An Chen, Chih-Chun Chen, Hui-Min Chen, Chao-Chien Chang, Tsorng-Harn Fong
Format: Article
Language:English
Published: MDPI AG 2020-07-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/10/14/4946
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author Nguyen Thi Thu Trang
Jungshan Chang
Wei-An Chen
Chih-Chun Chen
Hui-Min Chen
Chao-Chien Chang
Tsorng-Harn Fong
author_facet Nguyen Thi Thu Trang
Jungshan Chang
Wei-An Chen
Chih-Chun Chen
Hui-Min Chen
Chao-Chien Chang
Tsorng-Harn Fong
author_sort Nguyen Thi Thu Trang
collection DOAJ
description Ultrastructural observation of biological specimens or nanogranules usually requires the use of electron microscopy. Electron microscopy takes a lot of time, requires many steps, and uses many chemicals, which may affect the native state of biological specimens. A novel microchip (K-kit) was used as a specimen kit for in situ imaging of human platelet granules in an aqueous solution using a transmission electron microscope. This microchip enabled us to observe the native human platelet granules very quickly and easily. The protocols included blood collection, platelet purification, platelet granule isolation, sample loading into this microchip, and then observation by a transmission electron microscope. In addition, these granules could still remain in aqueous solution, and only a very small amount of the sample was required for observation and analysis. We used this microchip to identify the native platelet granules by negative staining. Furthermore, we used this microchip to perform immunoelectron microscopy and successfully label α-granules of platelets with the anti-P-selectin antibody. These results demonstrate that the novel microchip can provide researchers with faster and better choices when using a transmission electron microscope to examine nanogranules of biological specimens in aqueous conditions.
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spelling doaj.art-51fe3e88946648229e51d6909f1ad9f72023-11-20T07:11:29ZengMDPI AGApplied Sciences2076-34172020-07-011014494610.3390/app10144946A Novel Microchip Technique for Quickly Identifying Nanogranules in an Aqueous Solution by Transmission Electron Microscopy: Imaging of Platelet GranulesNguyen Thi Thu Trang0Jungshan Chang1Wei-An Chen2Chih-Chun Chen3Hui-Min Chen4Chao-Chien Chang5Tsorng-Harn Fong6International Ph.D. Program for Cell Therapy and Regeneration Medicine, College of Medicine, Taipei Medical University, Taipei 11031, TaiwanInternational Ph.D. Program for Cell Therapy and Regeneration Medicine, College of Medicine, Taipei Medical University, Taipei 11031, TaiwanDepartment of Anatomy and Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, TaiwanDepartment of Anatomy and Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, TaiwanDepartment of Anatomy and Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, TaiwanDepartment of Cardiovascular Center, Cathay General Hospital, Taipei 10630, TaiwanDepartment of Anatomy and Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, TaiwanUltrastructural observation of biological specimens or nanogranules usually requires the use of electron microscopy. Electron microscopy takes a lot of time, requires many steps, and uses many chemicals, which may affect the native state of biological specimens. A novel microchip (K-kit) was used as a specimen kit for in situ imaging of human platelet granules in an aqueous solution using a transmission electron microscope. This microchip enabled us to observe the native human platelet granules very quickly and easily. The protocols included blood collection, platelet purification, platelet granule isolation, sample loading into this microchip, and then observation by a transmission electron microscope. In addition, these granules could still remain in aqueous solution, and only a very small amount of the sample was required for observation and analysis. We used this microchip to identify the native platelet granules by negative staining. Furthermore, we used this microchip to perform immunoelectron microscopy and successfully label α-granules of platelets with the anti-P-selectin antibody. These results demonstrate that the novel microchip can provide researchers with faster and better choices when using a transmission electron microscope to examine nanogranules of biological specimens in aqueous conditions.https://www.mdpi.com/2076-3417/10/14/4946transmission electron microscopyplateletalpha granulemicrochip
spellingShingle Nguyen Thi Thu Trang
Jungshan Chang
Wei-An Chen
Chih-Chun Chen
Hui-Min Chen
Chao-Chien Chang
Tsorng-Harn Fong
A Novel Microchip Technique for Quickly Identifying Nanogranules in an Aqueous Solution by Transmission Electron Microscopy: Imaging of Platelet Granules
Applied Sciences
transmission electron microscopy
platelet
alpha granule
microchip
title A Novel Microchip Technique for Quickly Identifying Nanogranules in an Aqueous Solution by Transmission Electron Microscopy: Imaging of Platelet Granules
title_full A Novel Microchip Technique for Quickly Identifying Nanogranules in an Aqueous Solution by Transmission Electron Microscopy: Imaging of Platelet Granules
title_fullStr A Novel Microchip Technique for Quickly Identifying Nanogranules in an Aqueous Solution by Transmission Electron Microscopy: Imaging of Platelet Granules
title_full_unstemmed A Novel Microchip Technique for Quickly Identifying Nanogranules in an Aqueous Solution by Transmission Electron Microscopy: Imaging of Platelet Granules
title_short A Novel Microchip Technique for Quickly Identifying Nanogranules in an Aqueous Solution by Transmission Electron Microscopy: Imaging of Platelet Granules
title_sort novel microchip technique for quickly identifying nanogranules in an aqueous solution by transmission electron microscopy imaging of platelet granules
topic transmission electron microscopy
platelet
alpha granule
microchip
url https://www.mdpi.com/2076-3417/10/14/4946
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