Pyridine-based lanthanide complexes: towards bimodal agents operating as near infrared luminescent and MRI reporters.
نویسندگان
چکیده
We report two prototype Ln(3+) complexes that address requirements for both MRI and luminescence imaging and we demonstrate that the presence of two H(2)O molecules bound to the Ln(3+), beneficial for MRI applications of the Gd(3+) analogue, is not a major limitation for the development of NIR luminescent agents.
منابع مشابه
A practical strategy to create near-infrared luminescent probes: conversion from fluorescein-based sensors.
Luminescent lanthanide complexes incorporating Yb(3+) and Nd(3+) are attracting much attention as imaging agents, but there have been few practical methods to make responsive sensors with these complexes. Here, we introduce a general strategy to synthesize near-infrared luminescent probes by conjugating a Yb(3+) chelate to established fluorescein-based probes. As the first demonstration, we pre...
متن کاملOptical Response Measurement of Upconverting Luminescent Reporters
We have prepared and characterized several lanthanide ion complexes of multidentate ligands or chelates in an effort to develop new luminescent reporters that will be immune to autofluorescence and photobleaching. Our study has involved the characterization of various chelates of Eu, Er, and Tm with respect to relative luminescent efficiency and excited state lifetimes. Included in the list of ...
متن کاملSelf-assembly of highly luminescent lanthanide complexes promoted by pyridine-tetrazolate ligands.
Two tridentate pyridine-tetrazolate ligands (H(2)pytz and H(2)pytzc), analogues of the well-known dipicolinate (H(2)dpa) ligand, have been synthesized in a straightforward manner and used for lanthanide(III) coordination. The structures of the resulting tris-ligand complexes were determined in solution ((1)H-NMR), where they remain undissociated, as well as in the solid state (X-ray diffraction...
متن کاملApplication of metal coordination chemistry to explore and manipulate cell biology.
9. Metal-Responsive MRI Agents 4946 9.1. MRI Agents for Calcium 4946 9.2. MRI Agents for Zinc and Copper 4947 10. Luminescent Metal Complexes for Cellular Imaging 4948 10.1. Luminescent Transition Metal Complexes 4949 10.2. Luminescent Lanthanide Complexes 4950 11. Using Coordination Chemistry To Label Proteins 4951 11.1. Polycysteine Tags 4951 11.2. Polyhistidine Tags 4953 11.3. Polyaspartate ...
متن کاملTransposing molecular fluorescent switches into the near-IR: development of luminogenic reporter substrates for redox metabolism.
Optical reporters enable the direct and minimally invasive probing of molecular events in complex environments such as living cells and tissues. While significant achievements have been made in the area of fluorescent sensors for metal ions and small organic compounds,1 probes that report directly on enzyme activity are less developed by comparison, with the exception of reporters for hydrolase...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Chemical communications
دوره 48 شماره
صفحات -
تاریخ انتشار 2008