Related Experiment Video
Updated: Feb 11, 2026

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks MOFs
Published on: January 17, 2020
Lab-on-MOFs: Color-Coded Multitarget Fluorescence Detection with White-Light Emitting Metal-Organic Frameworks under
Yong-Mei Wang1, Zhong-Rui Yang1, Lehui Xiao1
1State Key Laboratory of Medicinal Chemical Biology and Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry , Nankai University , Tianjin , 300071 , China.
Abstract:
Multitarget assay with single detection modality from individual stimulation mode has aroused great attention. Here, we realize multitarget detection with the color change as signal source from single white light-emitting metal-organic frameworks (MOFs) under single wavelength excitation for the first time. The white light-emitting MOFs are prepared by carefully tuning the ratio of Eu3+, Tb3+, and Dy3+ ions to obtain trimetal MOFs; 5-boronoisophthalic acid (5-bop) provides additional selectivity as ligand. Based on antenna effect, 5-bop is excited to produce its triplet-state, which sensitizes the Ln3+ ions for the white emission. Thus, all of the fluorescence emission is achieved under single wavelength excitation at 275 nm, while any factors affecting the procedure result in the modulation of emission for diverse wavelengths. The trimetal MOFs display distinctive emission colors after interacting with different targets, including metal ions, anions, small molecule, and even biomolecule as a Lab-on-MOFs system. This system shows higher integration degree and simpler preparation and sensing procedures than other multitarget detection strategies.
Related Concept Videos
Colors and Magnetism
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
Alkali Metals
Table 1: Properties of the alkali metals
The de Broglie Wavelength
The Wave Nature of Light
Light as Energy
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit...
lncRNA - Long Non-coding RNAs

