DNA deoxyribonucleic acid modified platinum nanoparticles ptnps DNA | scientific research reagent

DNA DNA modified platinum nanoparticles PtNPS-DNA| Research reagents

Deoxyribonucleic acid （DNA） Physical and chemical properties of

DNA It's high polymer , Its solution is polymer solution , It has high viscosity , It can be dyed green by methyl green .DNA To ultraviolet rays （260nm） It has absorption effect , Take advantage of this feature , It can be done to DNA Conduct content determination . When nucleic acid denaturates , The absorbance increases , Called the hyperchromic effect ; When denatured nucleic acids are renatured , The absorbance will return to the original level . Higher temperature 、 Organic solvents 、 Acid base reagent 、 urea 、 Amides can cause DNA Molecular denaturation , namely DNA The hydrogen bond between double chain bases breaks , The double helix structure is untied — Also known as DNA De helix of .

 

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Small make up axc,2022.07.26