[EN] TWO-PHOTON PROBE FOR REAL-TIME MONITORING OF INTRACELLULAR CALCIUM IONS, METHOD FOR PREPARING THE PROBE AND METHOD FOR REAL-TIME MONITORING OF INTRACELLULAR CALCIUM IONS USING THE PROBE<br/>[FR] SONDE À DEUX PHOTONS POUR SURVEILLANCE EN TEMPS RÉEL D'IONS DE CALCIUM INTRA-CELLULAIRE, PROCÉDÉ DE PRÉPARATION DE LA SONDE ET PROCÉDÉ DE SURVEILLANCE EN TEMPS RÉEL DES IONS DE CALCIUM INTRA-CELLULAIRE UTILISANT LA SONDE
申请人:UNIV IND & ACAD COLLABORATION
公开号:WO2009031734A1
公开(公告)日:2009-03-12
A two-photon probe for real-time monitoring of intracellular calcium ions is provided. The two-photon probe is very suitable for real-time imaging of intracellular calcium ions, shows 20~5 O-fold TPEF enhancement in response to Ca2+, has a dissociation constant (Kdτp) of 0.14 ± 0.02 to 0.25 ± 0.03 μM, and emits 5-fold stronger TPEF than currently available one-photon fluorescent Ca2+ probes. Unlike the previously available probes, the two-photon probe can selectively detect dynamic levels of intracellular free Ca2+ in live cells and living tissues without interference from other metal ions and from the membrane-bound probes. Moreover, the two- photon probe is capable of monitoring the calcium waves at a depth of 100-300 μm in live tissues for 1,100-4,000 s using two-photon microscopy (TPM) with no artifacts of photo-bleaching. Further provided are a method for preparing the two-photon probe and a method for real-time monitoring of intracellular calcium ions using the two-photon probe.
Two-photon probe for real-time monitoring of intracellular free zinc ions, method for preparing the probe and method for real-time monitoring of intracellular free zinc ions using the probe
申请人:Cho Bong-Rae
公开号:US20090286275A1
公开(公告)日:2009-11-19
A two-photon probe for real-time monitoring of intracellular free zinc ions is provided. The two-photon probe is represented by Formula 1:
wherein R is H or OCH
3
. The two-photon probe has high selectivity for Zn
2+
and enables very effective and long-term monitoring of intracellular free Zn
2+
present in the deep tissue. Further provided are a method for preparing the two-photon probe and a method for real-time monitoring of intracellular free zinc ions using the two-photon probe.
Two-photon probe for real-time monitoring of intracellular calcium ions, method for preparing the probe and method for real-time monitoring of intracellular calcium ions using the probe
申请人:Korea University Industry and Academy
Cooperation Foundation