Homo Lumo
Homo Lumo - Related Videos
09:02
Using Polystyrene-block-poly(acrylic acid)-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization
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Cited by 1 •
2015
We report protocols for “polymerizing” various types of polymer-encapsulated metal nanoparticles into long chains of “homo-“ and “co-polymers”.
04:48
Fluorescence Fluctuation Spectroscopy to Study Protein Homo-Oligomerization
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2025
This video demonstrates the technique of fluorescence fluctuation spectroscopy (FFS) to study protein homo-oligomerization. Fluorescently-labeled proteins in a sample are dimerized using an agent when studying protein oligomerization using FFS. Using a confocal microscope, as the proteins move in and out of the small observation volume, the analysis of the fluctuations in the brightness of the fluorescent molecules is performed to determine the oligomeric state of the proteins.
04:55
UV-Vis Spectroscopy of Dyes - Concepts
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2020
Absorbance When light interacts with a substance, a portion of the light is absorbed while the rest is either reflected or transmitted through it. Substances that we perceive as having a color reflect light in the visible range. The color of the substance that we are able to see depends on which wavelength of light is reflected. A substance that we perceive as blue reflects light in the blue range (430 – 480 nm) of the visible spectrum. According to the color wheel, the same substance absorbs...
10:44
Chemical Inactivation of the E3 Ubiquitin Ligase Cereblon by Pomalidomide-based Homo-PROTACs
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Cited by 14 •
2019
This work describes the synthesis and characterization of a pomalidomide-based, bifunctional homo-PROTAC as a novel approach to induce ubiquitination and degradation of the E3 ubiquitin ligase cereblon (CRBN), the target of thalidomide analogs.
07:22
Generating Homo- and Heterografts Between Watermelon and Bottle Gourd for the Study of Cold-responsive MicroRNAs
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Cited by 6 •
2018
Here we present a detailed protocol for efficiently making homo- and heterografts between watermelon and bottle gourd, in addition to methods of tissue sampling, data generation, and data analysis, for the investigation of cold-responsive microRNAs.
FAQs
The gap links a molecule’s orbital arrangement with electronic excitation. When the molecule absorbs light, an electron can move from the occupied frontier orbital to the unoccupied one. Examining the gap therefore helps relate electronic structure to the wavelength of absorbed light and to the ease with which excitation occurs.
The two orbitals provide complementary information about electron movement. The HOMO represents a region associated with electron donation, while the LUMO represents a region associated with electron acceptance. Comparing these regions helps chemists discuss possible charge transfer and evaluate how electron redistribution may affect bonding or a proposed reaction pathway.
Frontier molecular orbital analysis connects orbital characteristics with changes in electron distribution. By considering the HOMO as a donor region and the LUMO as an acceptor region, chemists can interpret how electron transfer may participate in bonding and use that relationship to discuss possible reaction pathways rather than viewing reactivity only through molecular composition.
Photochemical interpretation depends on how a molecule responds to absorbed energy. The HOMO-to-LUMO transition provides an electronic framework for discussing that response, while the energy gap helps connect excitation with the wavelength of absorbed light. This makes the relationship useful for examining how molecular electronic structure contributes to photochemical behavior.
A typical assessment considers both the energy relationship between the frontier orbitals and their donor or acceptor roles. These features help organize an interpretation of electron movement within a molecule or between chemically relevant regions. The resulting picture can connect charge transfer with electronic structure, bonding, reaction pathways, and light-driven excitation.
Molecular materials can be discussed through the same electronic features used for individual molecules. Examining frontier orbitals and their energy relationship helps relate electronic structure to light absorption, charge transfer, and photochemical behavior. These connections provide a framework for interpreting how molecular-level orbital properties contribute to the broader properties of molecular materials.