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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Multi-element analysis of soft tissues in paraffin by laser induced breakdown spectroscopy
 Kopřivová, Hana ; Samek, Ota (referee) ; Pořízka, Pavel (advisor)
This thesis deals with the analysis of paraffin-embedded soft tissues using laser-induced breakdown spectroscopy (LIBS) and the complementary technique of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Specifically, the work focuses on optimizing soft tissue LIBS measurement parameters for femtosecond and nanosecond pulsed laser ablation at different wavelengths on mouse kidneys as a soft tissue model matrix. In addition, elemental analyses were performed on several samples of the most commonly occurring human skin cancers (malignant melanoma, basal cell carcinoma, and squamous cell carcinoma) using the above-mentioned analytical methods. Maps of the spatial distributions of biogenic elements were obtained. Aim of this work is to show a potential of new analytical methods that are not intended to replace the classical histological examination completely. However, these techniques could be used for preliminary screening of tumor tissue or purely as a complementary technique for histologists to diagnose cancers. Both methods could offer a completely new perspective on soft tissue cancer diagnosis in the future.
Detailed record
Multi-element analysis of soft tissues in paraffin by laser induced breakdown spectroscopy
 Kopřivová, Hana ; Samek, Ota (referee) ; Pořízka, Pavel (advisor)
This thesis deals with the analysis of paraffin-embedded soft tissues using laser-induced breakdown spectroscopy (LIBS) and the complementary technique of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Specifically, the work focuses on optimizing soft tissue LIBS measurement parameters for femtosecond and nanosecond pulsed laser ablation at different wavelengths on mouse kidneys as a soft tissue model matrix. In addition, elemental analyses were performed on several samples of the most commonly occurring human skin cancers (malignant melanoma, basal cell carcinoma, and squamous cell carcinoma) using the above-mentioned analytical methods. Maps of the spatial distributions of biogenic elements were obtained. Aim of this work is to show a potential of new analytical methods that are not intended to replace the classical histological examination completely. However, these techniques could be used for preliminary screening of tumor tissue or purely as a complementary technique for histologists to diagnose cancers. Both methods could offer a completely new perspective on soft tissue cancer diagnosis in the future.
Detailed record

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