A europium–lipoprotein nanocomposite for highly-sensitive MR-fluorescence multimodal imaging
نویسندگان
چکیده
A novel reconstituted high-density lipoprotein (rHDL) nanocomposite has been prepared for highly-sensitive magnetic resonance (MR)fluorescence multimodal imaging. Such a nanocomposite is able to enhance the MR sensitivity up to 129 fold in comparison to the traditional small molecule MRI agent based on paramagnetic chemical exchange saturation transfer (PARACEST). It has also demonstrated specific targeting to macrophage cells, which shows great potential for the detection of atherosclerosis.
منابع مشابه
In vivo nanoparticle-mediated radiopharmaceutical-excited fluorescence molecular imaging
Cerenkov luminescence imaging utilizes visible photons emitted from radiopharmaceuticals to achieve in vivo optical molecular-derived signals. Since Cerenkov radiation is weak, non-optimum for tissue penetration and continuous regardless of biological interactions, it is challenging to detect this signal with a diagnostic dose. Therefore, it is challenging to achieve useful activated optical im...
متن کاملControlled intracellular self-assembly of gadolinium nanoparticles as smart molecular MR contrast agents
Herein we developed a new "smart" Gd-based MR contrast agent (i.e., 1) which is susceptive to furin, a protease overexpressed in tumor. Under the action of furin, 1 condenses to form dimers (1-Ds) and the latter self-assemble into gadolinium nanparticles (Gd-NPs). Relaxivity of 1-D is more than 2 folds of those of 1 and magnevist at 1.5 T, and 1.4 folds of that of 1 at 3 T. Intracellular conden...
متن کاملHTRF: A Technology Tailored for Drug Discovery –A Review of Theoretical Aspects and Recent Applications
HTRF (Homogeneous Time Resolved Fluorescence) is the most frequently used generic assay technology to measure analytes in a homogenous format, which is the ideal platform used for drug target studies in high-throughput screening (HTS). This technology combines fluorescence resonance energy transfer technology (FRET) with time-resolved measurement (TR). In TR-FRET assays, a signal is generated t...
متن کاملLanthanide-Functionalized Hydrophilic Magnetic Hybrid Nanoparticles: Assembly, Magnetic Behaviour, and Photophysical Properties
The lanthanide-functionalized multifunctional hybrid nanoparticles combining the superparamagnetic core and the luminescent europium complex were successfully designed and assembled via layer-by-layer strategy in this work. It is noted that the hybrid nanoparticles were modified by a hydrophilic polymer polyethyleneimine (PEI) through hydrogen bonding which bestowed excellent hydrophilicity and...
متن کاملIndocyanine Green Loaded Reduced Graphene Oxide for In Vivo Photoacoustic/Fluorescence Dual-Modality Tumor Imaging
Multimodality imaging based on multifunctional nanocomposites holds great promise to fundamentally augment the capability of biomedical imaging. Specifically, photoacoustic and fluorescence dual-modality imaging is gaining much interest because of their non-invasiveness and the complementary nature of the two modalities in terms of imaging resolution, depth, sensitivity, and speed. Herein, usin...
متن کامل