2003年4月4日 · We describe the complementary use of X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared (FTIR) spectroscopy to quantitatively characterize the immobilization of thiolated (dT) 25 single-stranded DNA (ssDNA) on gold.

2017年3月2日 · The high-resolution photoelectron spectra reveal that in vacuo silver atoms interact mainly with oxygen atoms of the phosphodiester bond and deoxyribose in DNA, in contrast to the behavior of silver ions, which interact preferentially with the …

2021年4月9日 · Here we present near-ambient-pressure XPS experiments to directly measure DNA damage under water atmosphere. They permit in-situ monitoring of the effects of radicals on fully hydrated double...

The present work demonstrates the enormous potential of DNA biosensor as a rapid and specific diagnostic tool to be used for the detection of prostate cancer DNA.

2017年4月19日 · The present paper describes the implementation of XPS analysis, using traditional, commercially available XPS equipment, to shed light on the surface composition and binding interactions of spontaneously coassembled nanocomplexes composed of …

2009年7月1日 · We demonstrated the use of X-ray photoelectron spectroscopy (XPS) to study DNA hybridization. Target DNA labeled with hexachloro-fluorescein (HEX) was hybridized to DNA arrays with four different probes. Each probe dot of the hybridized arrays was detected with XPS.

2009年2月1日 · XPS yields information about the atomic composition of the surface, whereas from ToF-SIMS, information on the molecular species on the surface can be concluded. Applied on printed DNA microarrays, both techniques provide impressive chemical images down to the micrometer scale and can be utilized for label-free spot detection and characterization.

2023年5月16日 · X-ray photoelectron spectroscopy was used to analyze commercially available powders of thymine, uracil, cytosine, guanine, adenine, as well as DNA isolated from salmon testes and RNA from torula yeast.

2017年3月13日 · 高分辨率光电子能谱显示，在真空中，银原子主要与DNA中的磷酸二酯键和脱氧核糖的氧原子相互作用，而银离子的行为则优先与碱基的氮原子相互作用。

2004年1月1日 · DNA adsorption onto polypyrrole (PPy) powder particles has been monitored, ex situ, by X-ray photoelectron spectroscopy (XPS) technique. DNA adsorption isotherms were determined by the quantitative analysis of the XPS spectra, and by plotting the X/N atomic ratios (X = C, O, Cl, P and Na) versus DNA equilibrium concentration.