Intrinsic Buffer Hydroxyl Radical Dosimetry Using Tris(hydroxymethyl)aminomethane
نویسندگان
چکیده
منابع مشابه
Free hydroxyl radical dosimetry by using 1 MHz low level ultrasound waves
ABSTRACTBackground : In order to quantify effects of ultrasound irradiation parameters under therapeutic condition, especially sonodynamic therapy, it is initially necessary to evaluate inertial cavitation activity in vitro conditions therefore, in this study, the effect of 1 MHz low level ultrasound based on °OH radicals generated by acoustic inertial cavitation in aqueous solution was monit...
متن کاملfree hydroxyl radical dosimetry by using 1 mhz low level ultrasound waves
abstractbackground : in order to quantify effects of ultrasound irradiation parameters under therapeutic condition, especially sonodynamic therapy, it is initially necessary to evaluate inertial cavitation activity in vitro conditions therefore, in this study, the effect of 1 mhz low level ultrasound based on °oh radicals generated by acoustic inertial cavitation in aqueous solution was monitor...
متن کاملApplication of chemical dosimetry to hydroxyl radical measurement during underwater discharge
The pulsed streamer discharge was generated in the liquid by using point-to-sphere electrode geometry. In this study, the OH radicals were measured indirectly by a chemical dosimetry. Terephthalic acid (TA) was used as an OH radical scavenger and fluorescence of the resulted 2-hydroxyterephthalic acid (HTA) was measured. Instead of the use of conventional fluorescence spectrophotometer, a novel...
متن کاملCreatinine and HMH (5-hydroxy-1-methylhydantoin, NZ-419) as intrinsic hydroxyl radical scavengers.
Creatinine (Crn) is one of the main intrinsic hydroxyl radical (•OH) scavengers and an ideal one for healthy or normal mammals, although this fact has not yet become widely accepted. Our results from urinary data estimated that ca. 0.4-0.6% of Crn is used daily to scavenge •OH in normal mammals [ca. 50 μmole and ca. 400 pmole of •OH in healthy subjects and normal rats, respectively]. In human s...
متن کاملSerum Hydroxyl Radical Scavenging Capacity as Quantified with Iron-Free Hydroxyl Radical Source
We have developed a simple ESR spin trapping based method for hydroxyl (OH) radical scavenging-capacity determination, using iron-free OH radical source. Instead of the widely used Fenton reaction, a short (typically 5 seconds) in situ UV-photolysis of a dilute hydrogen peroxide aqueous solution was employed to generate reproducible amounts of OH radicals. ESR spin trapping was applied to quant...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the American Society for Mass Spectrometry
سال: 2019
ISSN: 1044-0305,1879-1123
DOI: 10.1021/jasms.9b00088