Dual-emissive nanoarchitecture of lanthanide-complex-modified silica particles for in vivo ratiometric time-gated luminescence imaging of hypochlorous acid† †Electronic supplementary information (ESI) available: Characterization of the new compounds, Fig. S1–S12 and a video showing the real-time uptake and accumulation of HClO in living Daphnia magna using the RTLNP as a probe. See DOI: 10.1039/c6sc02243j Click here for additional data file. Click here for additional data file.
نویسندگان
چکیده
We have developed a ratiometric time-gated luminescence sensory system for in vivo imaging of hypochlorous acid (HClO) by preparing a dual-emissive nanoarchitecture of europiumand terbiumcomplex-modified silica nanoparticles. The design of this nanoarchitecture is based on our new finding that the strong, long-lived luminescence of the b-diketonate–Eu complex can be rapidly and selectively quenched by HClO. Therefore, the b-diketonate–Eu complex was decorated on the surface of the silica nanoparticles for responding to HClO, while a HClO-insensitive luminescent terbium complex was immobilized in the inner solid core of the nanoparticles to serve as an internal standard. This nanosensing probe combines the advantages of both ratiometric and time-gated detection modes to afford high accuracy and sensitivity. Upon exposure to HClO, the nanoprobe displayed a remarkable luminescence color change from red to green, and the intensity ratio of the green over the red luminescence (I539/I607) showed a rapid, sensitive and selective response to HClO. Additionally, the feasibility of using the nanoprobe for intracellular detection of exogenous and endogenous HClO and for real-time mapping of HClO in small laboratory animals has been demonstrated via ratiometric timegated luminescence imaging microscopy. The results reveal that the constructed nanoarchitecture cloud is a favorable and useful sensing probe for the real-time imaging of HClO in vivo with high specificity and contrast.
منابع مشابه
Dual-emissive nanoarchitecture of lanthanide-complex-modified silica particles for in vivo ratiometric time-gated luminescence imaging of hypochlorous acid.
We have developed a ratiometric time-gated luminescence sensory system for in vivo imaging of hypochlorous acid (HClO) by preparing a dual-emissive nanoarchitecture of europium- and terbium-complex-modified silica nanoparticles. The design of this nanoarchitecture is based on our new finding that the strong, long-lived luminescence of the β-diketonate-Eu3+ complex can be rapidly and selectively...
متن کاملArtificial micro-cinderella based on self-propelled micromagnets for the active separation of paramagnetic particles† †Electronic supplementary information (ESI) available: Experimental section; Fig. S1. Video S1–S5. See DOI: 10.1039/c3cc41962b Click here for additional data file. Click here for additional data file. Click here for additional data file. Click here for additional data file. Click here for additional data file.
In this work, we will show that ferromagnetic microjets can pick-up paramagnetic beads while not showing any interaction with diamagnetic silica microparticles for the active separation of microparticles in solution.
متن کاملBimetallic lanthanide complexes that display a ratiometric response to oxygen concentrations† †Electronic supplementary information (ESI) available: Synthetic procedures, luminescence and NMR spectra, photophysical considerations, time-resolved emission profiles and luminescence lifetimes. See DOI: 10.1039/c4sc03827d Click here for additional data file.
متن کامل
Homochiral self-assembly of biocoordination polymers: anion-triggered helicity and absolute configuration inversion† †Electronic supplementary information (ESI) available: Preparation and physical characterization data of 1P and 2M, additional structural description, UV-Vis and CD spectra (Fig. S1–S7), crystallographic refinement details for 1P and 2M (Table S1), selected bond distances and angles for 1P and 2M (Tables S2–S5), ESI(+)-MS and ESI(+)-MSMS spectra (Fig. S8–S11 and Schemes S1 and S2) and PXRD (Fig. S12). CCDC 1046609 and 1046610. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c5sc01089f Click here for additional data file. Click here for additional data file.
متن کامل
The protecting-group free selective 3′-functionalization of nucleosides† †Electronic supplementary information (ESI) available. CCDC 1525736–1525737. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c6sc05081f Click here for additional data file. Click here for additional data file.
General ............................................................................................................................................S1 General Procedure A: Preparation of 3’-Phosphorylated Nucleosides .................................S1 Preparation of 3’-acetylated Nucleosides...................................................................................S8 NMR Studies .........
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره 8 شماره
صفحات -
تاریخ انتشار 2017