Particle Impact

Particle impact is the collision of a particle with another particle, surface, or material, a process that changes motion and can transfer energy and momentum. During impact, the particles interact through forces over a short time; the outcome depends on variables such as mass, velocity, collision angle, and the material’s properties, and may include deflection, deformation, heating, or fragmentation. In physics, studying particle impact supports analysis of collision dynamics, scattering experiments, radiation detection, and interactions between matter and high-speed particles. These principles also inform research in materials science, nuclear physics, space science, and engineering.

Particle Impact - Related Videos

Research

JoVE Journal - Bioengineering
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Fabrication of Pulsatile Polymeric Microparticles Encapsulating Rabies Antigen

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2023

This method describes the encapsulation of the rabies antigen into biodegradable polymeric microparticles with structural and material properties that enable pulsatile release after a predetermined delay. Enzyme-linked immunosorbent assay (ELISA) assessment of the antigen retrieved from the particle core confirms the presence of intact trimeric rabies virus glycoprotein through particle fabrication.

Education

JoVE Core - Chemistry

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...

Impact of Groups on Groups

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2025

Social psychologists analyze how groups influence one another, shaping social structures and interactions through both cooperation and competition. These dynamics manifest in various ways, ranging from economic partnerships to intergroup conflicts that shape societal structures and perceptions.Cooperation and Competition in Intergroup RelationsIntergroup relationships vary across contexts, sometimes fostering cooperation and mutual benefit while at other times leading to conflict and...

The Nucleosome Core Particle

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2020

Nucleosomes are the DNA-histone complex, where the DNA strand is wound around the histone core. The histone core is an octamer containing two copies of H2A, H2B, H3, and H4 histone proteins. The paradox Nucleosomes, paradoxically, perform two opposite functions simultaneously. On the one hand, their main responsibility is to protect the delicate DNA strands from physical damage and help achieve a higher compaction ratio. While on the other hand, they must allow polymerase enzymes to access DNA...

Fast Imaging Technique to Study Drop Impact Dynamics of Non-Newtonian Fluids

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2014

Drop impact of non-Newtonian fluids is a complex process since different physical parameters influence the dynamics over a very short time (less than one tenth of a millisecond). A fast imaging technique is introduced in order to characterize the impact behaviors of different non-Newtonian fluids.

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