Quantum Dot Nanocrystals and Supramolecular Lanthanide Complexes -Energy Transfer Systems for Sensitive In Vitro Diagnostics and High Throughput Screening in Chemical Biology
Abstract
Resonance Energy Transfer (RET) plays an important role, both scientifically and commercially, in diagnostics and high throughput screening. For qualitative and quantitative analysis, RET systems are usually assembled through molecular recognition of biomolecules labeled with donor and acceptor luminophores. Lanthanide complexes, as well as quantum dot nanocrystals (QD), possess unique photophysical properties that make them especially suitable for applied RET systems in chemical biology. This review deals with the RET theory, and advantages are compared to conventional systems (using optical and other detection techniques). Different molecular recognition processes, as well as labeling techniques yielding biocompatibility are described. The photophysics of Ln complexes (e.g. millisecond luminescence decay times, line-shaped emission spectra, antenna effect of the ligand) and of QD (e.g. high extinction coefficients, size-tunable emission spectra, chemical stability) as well as their RET properties are described in detail. We give an overview of biochemical applications using lanthanide complexes and QD, e.g. immunoassays, DNA analysis and nanometer distance measurements (spectroscopic ruler) and some selected results are outlined. In particular, the recent scientific progress in biocompatible QD RET systems with the use of QD as energy donors as well as acceptors together with Ln complexes as donors is highlighted. The worldwide economic and scientific interests, as well as…
Read the paper
Related studies
- Chaos and quantum thermalization
- The Dalton quantum chemistry program system
- Cord Blood Leptin and Adiponectin as Predictors of Adiposity in Children at 3 Years of Age: A Prospective Cohort Study
- Quantitative metabolomics by H-NMR and LC-MS/MS confirms altered metabolic pathways in diabetes
- Stable adiabatic quantum batteries
- A novel self-lipid antigen targets human T cells against CD1c(+) leukemias
Go deeper in Evidence Hub
Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.