Beta Particles
Beta Particles - Related Videos
01:25
Beta
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2024
Beta is a crucial metric in finance used to assess an investment's risk and expected return relative to the overall market. It is calculated as the slope of the line in a scatterplot that compares the returns of an individual stock to the returns of the market benchmark, typically represented by a broad market index. Beta quantifies how much a stock's price moves in response to market movements, providing insight into its volatility and systematic risk. A beta of one indicates that the stock's...
09:50
In situ Quantification of Pancreatic Beta-cell Mass in Mice
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Cited by 6 •
2010
The following protocol outlines the process of pancreatic dissection for virtual slice imaging, and the subsequent quantification of all GFP-tagged beta-cells in the entire pancreas.
03:51
Fluorescent Functionalization of Virus-Like Particles via Disulfide Re-bridging
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2026
Source: Chen, Z., et al. Making Conjugation-induced Fluorescent PEGylated Virus-like Particles by Dibromomaleimide-disulfide Chemistry. J. Vis. Exp. (2018)This video demonstrates the fluorescent functionalization of virus-like particles by re-bridging reduced disulfides with a polyethylene glycol (PEG) linker, producing stable, trackable conjugates suitable for cellular imaging and targeted delivery in biomedical applications.
03:37
Subatomic Particles
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2020
Dalton was only partially correct about the particles that make up matter. All matter is composed of atoms, and atoms are composed of three smaller subatomic particles: protons, neutrons, and electrons. These three particles account for the mass and the charge of an atom. The Discovery of the Electron The first clue about the subatomic structure came at the end of the 19th century when J.J. Thomson discovered the electron using a cathode ray tube. This apparatus consisted of a sealed glass...
06:34
A Tailored HPLC Purification Protocol That Yields High-purity Amyloid Beta 42 and Amyloid Beta 40 Peptides, Capable of Oligomer Formation
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Cited by 6 •
2017
Herein we report a tailored HPLC purification protocol that yields high-purity amyloid beta 42 (Aβ42) and amyloid beta 40 (Aβ40) peptides, capable of oligomer formation. Amyloid beta is a highly aggregation prone, hydrophobic peptide implicated in Alzheimer's disease. The amyloidogenic nature of the peptide makes its purification a challenge.
FAQs
In beta-minus decay, a neutron changes into a proton while an electron and an antineutrino are released. Because the number of protons determines an element’s chemical identity, this nuclear change produces a different element. The process therefore connects radioactive decay with changes that can be analyzed using both nuclear and chemical perspectives.
Beta-plus decay converts a proton into a neutron and emits a positron together with a neutrino. Beta-minus decay instead converts a neutron into a proton and releases an electron with an antineutrino. These opposite nuclear changes provide distinct pathways for analyzing how radioactive decay modifies nuclear composition and chemical identity.
Beta emissions are produced across a continuous range of particle energies rather than at one single energy. Their interactions with matter can therefore be measured to detect the radiation and study the decay process. This energy behavior is relevant when interpreting measurements used for isotope identification and nuclear reaction analysis.
Beta decay provides information about changes in nuclear composition, and the emitted particles can be detected through their interactions with matter. By examining these detectable emissions in the context of radioactive decay, chemists can support isotope identification. The approach links measurable radiation behavior with the identity and transformation of radioactive nuclei.
Beta emissions support radiotracer studies by providing a detectable signal associated with radioactive material during investigations of molecular processes. This makes it possible to connect nuclear decay with chemical research questions involving molecular behavior. The same principle helps researchers use radioactive isotopes as analytical tools rather than studying molecular processes only through direct chemical observation.
In nuclear reaction analysis, beta particles provide evidence of radioactive transformations involving changes between neutrons and protons. Detecting their interactions with matter helps researchers examine the products or behavior associated with decay. This information complements chemical analysis by revealing changes in the nucleus that may alter the chemical identity of the atom.
Work with beta-emitting materials requires attention to radiation shielding and exposure. The emitted particles interact with matter, so handling and measurement conditions must account for both the presence of radiation and the possibility of exposure. These considerations are essential when applying beta decay to isotope identification, radiotracer studies, or other chemical investigations.