Lanthanide Crystals
Lanthanide Crystals - Related Videos
07:24
Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
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Cited by 4 •
2020
Here, we present a protocol to obtain luminescent hyperspectral imaging data and to analyze optical anisotropy features of lanthanide-based single crystals using a Hyperspectral Imaging System.
13:21
Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging
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Cited by 9 •
2011
We demonstrate the metalation, purification, and characterization of lanthanide complexes. The complexes described here can be conjugated to macromolecules to enable tracking of these molecules using magnetic resonance imaging.
07:39
Protein Crystallization
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2023
Protein crystallization, obtaining a solid lattice of biomolecules, elucidates protein structure and enables the study of protein function. Crystallization involves drying purified protein under a combination of many factors, including pH, temperature, ionic strength, and protein concentration. Once crystals are obtained, the protein structure can be elucidated by x-ray diffraction and computation of an electron density model. This video introduces protein crystallization and shows a general...
13:38
Synthesis of Biocompatible Liquid Crystal Elastomer Foams as Cell Scaffolds for 3D Spatial Cell Cultures
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Cited by 9 •
2017
This study presents a methodology to prepare 3D, biodegradable, foam-like cell scaffolds based on biocompatible side-chain liquid crystal elastomers (LCEs). Confocal microscopy experiments show that foam-like LCEs allow for cell attachment, proliferation, and the spontaneous alignment of C2C12s myoblasts.
02:42
Ionic Crystal Structures
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2020
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size. Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
FAQs
The crystal field created by surrounding ions splits the lanthanide energy levels into distinct arrangements. Because partially shielded 4f orbitals interact relatively weakly with the lattice, these levels can support sharp, long-lived luminescence. The local ionic environment therefore links lattice structure to the wavelengths, persistence, and intensity of observed optical responses.
Partially shielded 4f orbitals are central to the characteristic optical behavior of these materials. Their relatively weak interaction with the surrounding lattice helps preserve defined electronic energy levels, allowing absorption and emission features to remain sharp. This behavior makes the crystals useful when controlled luminescence is needed in applications such as lasers, phosphors, and sensors.
Composition, oxidation state, and dopant concentration provide chemical controls over the crystal’s electronic and magnetic behavior. Adjusting these variables changes how lanthanide ions occupy and interact within the lattice, which in turn governs absorption, emission, and magnetic responses. Chemists use this compositional control to investigate and tune structure–property relationships in functional materials.
Different crystal compositions and structures can emphasize different functional responses. The crystal field and lanthanide electronic configuration support optical absorption and emission, while selected structures can support magnetic ordering or nonlinear optical behavior. Consequently, researchers select and modify crystal systems according to whether the desired outcome is luminescence, magnetism, or an optical response beyond ordinary linear behavior.
A practical design approach begins by controlling the material’s composition, the lanthanide oxidation state, and the concentration of dopants. These variables govern the resulting absorption, emission, and magnetic behavior, so they should be selected in relation to the intended function. Examining how those chemical choices alter the crystal response helps establish structure–property relationships.
Lanthanide crystals support several technology areas because their responses can be tailored through composition and lattice structure. Their luminescence is relevant to lasers, phosphors, scintillators, and sensors, while other structures provide magnetic or electronic functionality. They also contribute to data technologies, where controlled optical, magnetic, or electronic behavior can be valuable.
These materials provide a platform for connecting atomic-scale electronic configurations with measurable solid-state properties. Chemists can relate crystal-field splitting, lattice surroundings, composition, oxidation state, and dopant concentration to optical and magnetic outcomes. That connection makes lanthanide crystals useful for studying structure–property relationships while developing functional materials for photonic, sensing, magnetic, and electronic applications.