Journals / Erciyes Tıp Dergisi / 2003 / Cilt: 25 - Sayı: 2

A novel technique to cut skin precisely for mechanical skin tests and the influence of freezing procedura on test results

Mekanik deri testleri için düzgün deri kesilmesini sağlayan yeni bir yöntem ve dondurma işleminin deri mekanik test sonuçlarına etkisi

Pages
78–85
Publication Date
2022-10-17
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Results: Variation in width measurements of skin bands which were prepared by the new technique was smaller than that prepared by scissors; when frozen and freshly prepared samples were compared, there was a statistically significant difference between the elongation ratio and tensile forces of two samples prepared according to two different methods (p

📌 3 Key Takeaways

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Objective & Hypothesis:Purpose: To be able to cut skin precisely while performing mechanical tests in experiments, skin is frequently frozen beforehand.
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Key Findings & Data:In the second part of the study, the mechanical test results of stored skin samples frozen at -25 °C temperature overnight were compared with fresh skin samples.
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Conclusion & Impact:Results: Variation in width measurements of skin bands which were prepared by the new technique was smaller than that prepared by scissors; when frozen and freshly prepared samples were compared, there was a statistically significant difference between the elongation ratio and tensile forces of two samples prepared according to two different methods (p
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Purpose: To be able to cut skin precisely while performing mechanical tests in experiments, skin is frequently frozen beforehand. However, changes in native properties of skin after freezing have rarely been reported in the literature. We aimed to develop a new regular (smooth) fresh skin cutting method which does not necessitate any preceding freezing procedure. Material and methods: The main feature of this method is to prevent slipping of fresh skin by stabilizing the skin between two sandpaper covered surfaces. In the first part of this study, to determine the accuracy of this method, widths of skin bands were prepared using the defined device and scissors compared to evaluate the regularity of the skin bands. In the second part of the study, the mechanical test results of stored skin samples frozen at -25 °C temperature overnight were compared with fresh skin samples. Results: Variation in width measurements of skin bands which were prepared by the new technique was smaller than that prepared by scissors; when frozen and freshly prepared samples were compared, there was a statistically significant difference between the elongation ratio and tensile forces of two samples prepared according to two different methods (p

Özet

Amaç:Derinin mekanik özelliklerinin değerlendirildiği deneysel çalışmalarda, deri düzgün ve istenen şekilde kesilebilmesi için çoğu kez önceden bir dondurma işleminden geçirilir. Fakat çok az sayıda da olsa, dondurma işleminin derinin doğal mekanik özelliklerini değiştirdiği gösterilen çalışmalar bulunmaktadır. Biz dondurma işlemine gerek kalmadan düzgün bir deri kesme yöntemi geliştirmek ve dondurma işleminden geçen derilerin fiziksel özelliklerinde değişimler olduğunu göstererek bu yöntemin gerekliliği fikrini desteklemeyi amaçladık. Gereç ve Yöntem: Geliştirdiğimiz bu yöntemin esası, taze deri parçalarının iki zımpara yüzeyi arasında tutularak kaymalarının önlenmesidir. Çalışmanın ilk kısmında beş ratın sırt derisi alınarak, geliştirdiğimiz alet ile üçer deri şeridi hazırlandı ve şeritlerin beş ayrı noktasından genişlik ölçümleri yapıldı. Bu ölçümlerin varyansları, yine beş rattan makasla hazırlanan deri şeritlerininki ile karşılaştırılıp, şeritlerin düzgünlükleri ile ilgili veriler elde edildi. Çalışmanın ikinci kısmında ise -25 °C'de bir gece bekletilen deri şeritlerinin mekanik test sonuçları ile taze derinin test sonuçları değerlendirildi. Bulgular: Geliştirilen alet yardımıyla hazırlanan deri şeritlerinin en ölçümlerinin varyansları, makasla hazırlananlara kıyasla daha küçük olarak belirlendi ve dondurduktan sonra test edilen deriler ile taze deriler arasında, uzama oranları ve gerilme gücü açısından fark gözlendi (p

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Cite This Article

ÖZYAZGAN, İ., TERCAN, M. (2022). A novel technique to cut skin precisely for mechanical skin tests and the influence of freezing procedura on test results. Erciyes Tıp Dergisi, Cilt: 25 - Sayı: 2, 78–85. https://ajindex.com/articles/502869

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