Dihydrorhodamine 123: a fluorescent probe for superoxide generation?
نویسندگان
چکیده
منابع مشابه
P-11: DHR123: A Suitable Fluorescent Mitochondrial Probe for Assessment of H2O2 in Human Spermatozoa
Background: The objective of present study was to assess potential of DHR123 (dihydrorhodamine 123) fluorescent probe for measurement of H2O2 produced by human spermatozoa and comparing the results with DCFH-DA (2', 7'-dichlorodihydrofluorescein diacetate). Materials and Methods: Fluorescent intensity and percentage R123 and DCF positive sperm measured by flow cytometry. The suitable ...
متن کاملUltraviolet irradiation increases green fluorescence of dihydrorhodamine (DHR) 123: false‐positive results for reactive oxygen species generation
Dihydrorhodamine (DHR) 123 is a fluorophore commonly used for measuring reactive oxygen species (ROS), often after exposing cells to ultraviolet (UV) irradiation or oxidative burst inducers such as Phorbol 12-myristate 13-acetate (PMA). However, the negative effects of UV irradiation on oxidation of DHR123 itself to green fluorescence rhodamine (R) 123 under different experimental conditions (e...
متن کاملA fluorescent probe for ecstasy.
A nanostructure formed by the insertion in silica nanoparticles of a pyrene-derivatized cavitand, which is able to specifically recognize ecstasy in water, is presented. The absence of effects from interferents and an efficient electron transfer process occurring after complexation of ecstasy, makes this system an efficient fluorescent probe for this popular drug.
متن کاملA mitochondrion targeting fluorescent probe for imaging of intracellular superoxide radicals.
An amine-reactive fluorogenic molecule specifically turned on by superoxide radicals (O2˙(-)) was synthesized and coupled to a mitochondrial (MT) targeting peptide. The obtained probe showed superior uptake and MT targeting capabilities; and successfully detected the change in O2˙(-) levels in cells treated with chemical stimuli or single-walled carbon nanotubes.
متن کاملDesign of a phosphinate-based fluorescent probe for superoxide detection in mouse peritoneal macrophages.
3',6'-Bis(diphenylphosphinyl)fluorescein (PF-1) was synthesized as a highly selective and sensitive fluorescent probe for imaging O(2) (.-) in living cells. The design strategy for the probe was based on the nucleophilic mechanism of O(2) (.-) to mediate deprotection of this probe to give fluorescein. Upon reaction with O(2) (.-), the probe exhibits a strong fluorescence response and high selec...
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: European Journal of Biochemistry
سال: 1993
ISSN: 0014-2956,1432-1033
DOI: 10.1111/j.1432-1033.1993.tb18328.x