X-ray radiation of poly-L-arginine hydrochloride and multilayered DNA-coatings |
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Authors: | Agnieszka Stypczyńska Tony Nixon Nigel Mason |
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Institution: | 1. The Open University, Department of
Physical Sciences, Walton
Hall, Milton
Keynes, MK7 6AA, UK 2. The Open University, Engineering and Innovation, Walton
Hall, Milton
Keynes, MK7 6AA, UK
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Abstract: | The aim of this work was to determine the chemical changes induced in thin films of the dry polypeptide poly-L-arginine hydrochloride and its mixture with calf thymus deoxyribonucleic acid (DNA) during 5 h of soft X-ray exposure. The physical and chemical effects of the soft X-ray irradiation were studied using X-ray Photoelectron Spectroscopy (XPS). Analysis of O1s, N1s and C1s features in XPS spectra reveals the existence of several routes of radiation-induced decomposition and shows quantitative and qualitative changes. |
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Keywords: | |
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