X-ray induced damage in DNA monitored by X-ray photoelectron spectroscopy

Ptasińska, Sylwia; Stypczyńska, Agnieszka; Nixon, Tony; Mason, Nigel J.; Klyachko, Dimitri; Sanche, Léon

doi:10.1063/1.2961027

Cited by 87 publications

(101 citation statements)

References 22 publications

(25 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…31,32 It is well-known that such reactions are dominated by low-energy secondary electrons excited by X-ray exposure. Hence, X-ray excited secondary electrons probably induce the variation of chemical composition of GO.…”

Section: Introductionmentioning

confidence: 99%

Synchrotron Radiation Soft X-ray Induced Reduction in Graphene Oxide Characterized by Time-Resolved Photoelectron Spectroscopy

et al. 2015

View full text Add to dashboard Cite

Synchrotron radiation soft X-ray was employed to reduce graphene oxide (GO) films in ultrahigh vacuum. The dissociation of oxygen-containing functional groups, and the formation of sp 2 C−C bonds were revealed by time-resolved in situ X-ray photoelectron spectroscopy, demonstrating the X-ray reduction of GO. The number of C−O bonds of GO exhibited an exponential decay with exposure time. The X-ray reduction rate of GO was positively correlated with the intensity of low-energy secondary electrons excited from substrates by soft X-ray, indicating the C−O bonds were dissociated by secondary electrons.

show abstract

Section: Introductionmentioning

confidence: 99%

Synchrotron Radiation Soft X-ray Induced Reduction in Graphene Oxide Characterized by Time-Resolved Photoelectron Spectroscopy

et al. 2015

View full text Add to dashboard Cite

show abstract

“…al. 31 The crystal structure for both materials was very similar, suggesting that vapor deposition is a viable deposition process for nucleobases. See Fig.…”

Section: Dna Nucleobasesmentioning

confidence: 95%

Latest advances in biomaterials: from deoxyribonucleic acid to nucleobases

et al. 2014

View full text Add to dashboard Cite

This paper is a review of the recent research in bio-based materials for photonics and electronics applications. Materials that we have been working with include: deoxyribonucleic acid (DNA)-based biopolymers and nucleobases. We will highlight work on increasing the ionic conductivity of DNA-based membranes, enhancing the direct (DC) current and photoconductivity of DNA-based biopolymers, crosslinking of DNA-based biopolymers and promising applications for DNA nucleobases.

show abstract

“…The signal that appeared at 712.2 eV corresponds to the ferric compounds, such as FeOOH and Fe 2 O 3 (i.e., Fe 3+ oxide), and the signal at 707.1 eV was attributed to the presence of Fe 0 (2p) (Figure 11d) [58]. It is worth mentioning that the sulfide peak usually appears at 162.3 eV [40], and the signal at 133.7 eV corresponds to the P-O group present in the inhibitor molecule [57].…”

Section: Mechanism Of Inhibitionmentioning

confidence: 97%

“…The deconvoluted C 1s spectra (Figure 11b) showed two-peak profile at 285.3 eV and 286.5 eV, respectively. The peak at 285.3 eV was assigned to the C-C aliphatic bonds, while the presence of C=C, C=O, and C-N bonds were reflected by the peak at 286.5 eV [57]. The presence of O 1s peak at 530.3 eV, shown in Figure 12, is attributed to C-O and O 2− , and the peak appearing at 532.7 eV could be associated with the oxygen of adsorbed water [49].…”

Section: Mechanism Of Inhibitionmentioning

confidence: 99%

New, Amino Acid Based Zwitterionic Polymers as Promising Corrosion Inhibitors of Mild Steel in 1 M HCl

Mazumder

2019

Coatings

View full text Add to dashboard Cite

The zwitterionic monomers, N,N'-diallylamino propanephosphonate and amino acid residual N,N'-diallyl-l-methionine hydrochloride were synthesized, with excellent yields. These monomers were utilized in the preparation of zwitterionic homo and co-cyclopolymers 5-7 in aqueous solution using 2,2 -azobis (2-methylpropionamidine) dihydrochloride as an initiator. The polymers were characterized by FT-IR, NMR, and TGA. The performance of these synthesized polymers on mild steel in acidic solution was investigated by gravimetric method, Tafel extrapolation, linear polarization resistance, and electrochemical impedance spectroscopy. At 313 K, the maximum inhibition efficiencies of corrosion inhibitors 5-7 at 4.50 × 10 −4 mol L −1 were found to be 85.2%, 83.3%, and 99.5%, respectively. The inhibition efficiencies obtained from gravimetric weight loss, potentiodynamic polarization, and electrochemical impedance spectroscopy measurements were in good agreement. Different adsorption isotherms were also explored to find the best fit, and found to obey Langmuir adsorption isotherm. The thermodynamic parameters, such as activation energy (E a ), standard enthalpy of activation (∆H*), standard entropy of activation (∆S*), adsorption-desorption equilibrium constant (K ads ), and standard free energy of adsorption (∆G o ads ), were determined. Electrochemical data indicated that the zwitterionic copolymer 7 acts as a mixed type inhibitor under the influence of anodic control. The surface morphology of mild steel corrosion was evaluated without and with corrosion inhibitors by AFM, SEM-EDX, and XPS, which confirmed the adsorption of inhibitor molecules on the metal surface.

show abstract

X-ray induced damage in DNA monitored by X-ray photoelectron spectroscopy

Cited by 87 publications

References 22 publications

Synchrotron Radiation Soft X-ray Induced Reduction in Graphene Oxide Characterized by Time-Resolved Photoelectron Spectroscopy

Synchrotron Radiation Soft X-ray Induced Reduction in Graphene Oxide Characterized by Time-Resolved Photoelectron Spectroscopy

Latest advances in biomaterials: from deoxyribonucleic acid to nucleobases

New, Amino Acid Based Zwitterionic Polymers as Promising Corrosion Inhibitors of Mild Steel in 1 M HCl

Contact Info

Product

Resources

About