منابع مشابه
A DNA-based security solution using aggregated chaos cross and cubic map
DNA, cryptography and chaos, can be combined as a whole aggregated DNA, chaos-based and cryptography Discrete Chaotic Cryptography (DCC) to encrypt and decrypt data simultaneously. A new image encryption scheme based on chaotic system and DNA encoding has been proposed in this paper. Firstly the image is permuted by mixing the horizontally and vertically adjoint pixels with the help of Cross Ch...
متن کاملDenaturation and aggregation of lysozyme in water-ethanol solution.
We have applied rheological methods for the analysis of ethanol-lysozyme interaction during the process of denaturation and aggregation of the protein. At low concentration of ethanol a destruction of the hydration shell of lysozyme is observed. With the increase in the ethanol concentration a structural transformation takes place. It leads to the formation of a protein aggregate with an elonga...
متن کاملEthanol induces condensation of single DNA molecules
As a widely used precipitation agent for DNA extraction, ethanol is used to induce single molecule DNA condensation. This process is studied with force-measuring magnetic tweezers and atomic force microscopy (AFM). Our experiments provide direct evidence of the metastable intermediate racquet states in DNA collapse induced by ethanol. The measured condensing force is less than 0.2 pN even at 50...
متن کاملDNA denatures upon drying after ethanol precipitation.
We have observed that ethanol precipitation and subsequent drying of small (less than 400 bp) radiolabelled DNA fragments is able to induce a transition to a form that migrates aberrantly on acrylamide gels. This unusual form has increased sensitivity to S1 nuclease, decreased sensitivity to restriction enzymes, and a concentration dependence for the reversion to the duplex form. Apparently, DN...
متن کاملEthanol modulates rat hepatic DNA repair functions.
To further explore how ethanol may act at the DNA level, studies have been made of DNA repair mechanisms in male Wistar rats given ethanol either as an acute intragastric dose (5 g/kg) or continuously in a liquid diet (5% w/v) to provide 36% of the caloric intake. These treatments generate significant levels of free radicals with evidence of damage to DNA. The acute ethanol dose significantly i...
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 1995
ISSN: 0014-5793
DOI: 10.1016/0014-5793(95)01206-t