Plasma treatments resonance

Utegulov ZN, Mast DB, He P, Shi D, Gilland RF. Functionalization of single-walled carbon nanotubes using isotropic plasma treatment resonant Raman spectroscopy study. J Appl Phys 2005 97 104324-1. ... 

The role of the second plasma treatment by HFE or Ar seems to be the removal of type B plasma polymer of TMS from the top surface region or possibly converting the type B plasma polymer to type A plasma polymer. Electron spin resonance (ESR) data (described in Chapter 6) indicate that the number of Si-based dangling bonds decreases by these second plasma treatments. The weight loss observed with some plasma polymers and the ESR data for TMS film suggest that type B plasma polymer in the top surface region of an LCVD film could be up to nearly 30% of the... 

In this contribution, we report on the surface modifications of polymers by a dual frequency electron cyclotron resonance (ECR) plasma and their influence on the formation of the metal-polymer interfaces. The surface modifications are studied with respect to different parameters of the plasma treatment including the influence of an atmospheric contact. The interface of an evaporated metal film with a polymer surface is characterized in terms of the observed growth mode of the film as a function of the polymer surface properties. 

Table2.6 Relative free radical intensities detected by electron spin resonance (ESR) after the plasma treatments...

The agreement between the experimental and calculated spectra is rather good. The calculations give a good explanation of the blue shift of the plasma resonance absorption of the silver nanoparticles due to their nanostructural changes during the thermal treatment. In the computations with the... 

Luminescence molecular detectors have also been used for online monitoring of dissolution tests and the characterization of toxic residues using bioluminescence assays. Atomic (atomic absorption spectroscopy, inductively coupled plasma-atomic emission spectroscopy (ICP-AES)) detectors have been coupled to robotic stations either through a continuous system acting as interface or by direct aspiration into an instrument from a sample vial following treatment by the robot. Mass spectrometric and nuclear magnetic resonance (NMR) detectors... 

Grootveld M, Bell JD, Halliwell B, Aruoma OI, Bomford A, Sadler PJ (1989) Nontransferrin-bound iron in plasma or serum from patients with idiopathic hemochromatosis. Characterization by high performance liquid chromatography and nuclear magnetic resonance spectroscopy. J Biol Chem 264 4417-4422 Gyparaki M, Porter JB, Huehns ER, Hider RC (1986) Evaluation in vivo of hydro-xypyrid-4-one iron chelators intended for the treatment of iron overload by the oral route. Biochem Soc Trans 14 1181-1181 Hallaway PE, Eaton JW, Panter SS, Hedlund BE (1989) Modulation of deferoxamine toxicity and clearance by covalent attachment to biocompatible polymers. Proc Natl Acad Sci USA 86 10108-10112... 

Kahlke and Richterich 1965) and plasma lipids of Refsum s (1946) case T. E. (Kahlke 1964 a). Methods and results were identical in both instances although a nuclear resonance spectrum was obtained only in the first case and a complete mass spectrometric analysis only in the second case. Phytanic acid was isolated by preparative gas-liquid chromatography from a mixture of fatty acid methyl esters. Traces of stearic acid were removed as the urea inclusion compound by treatment with a saturated methanolic solution of urea (Cason et al. 1953). After repeated crystallization from acetone at minus 70—80 C and drying under vacuum at minus 10 C, phytanic acid was obtained as a white crystalline powder with a melting point of minus 7—6 C. At room temperature phytanic acid is a colorless, odorless oil. The lack of hydrogen uptake with exhaustive... 

Fluoxetine (Prozac ) is a widely used antidepressant drug. In patients receiving daily doses of 20 or 40 mg, brain concentration continued to increase well after the clinical effects were evident (2 weeks), seemed to level off after about 6 to 10 months of treatment and was about 20 times the concentration in plasma. It thus appears that there is no correlation between brain concentration and clinical response. A combined in vivo and in vitro study on several patients showed that the single F resonance observed in vivo contains, in roughly equal proportion, both the drug and its active metabolite... 

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