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

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...

Research

JoVE Journal - Bioengineering
Free Sample

Fabrication of Pulsatile Polymeric Microparticles Encapsulating Rabies Antigen

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Cited by 1 •

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.

Concentration and Purification of Viral Particles

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2026

Source: Fricano-Kugler, C. J., et al. Designing, Packaging, and Delivery of High Titer CRISPR Retro and Lentiviruses via Stereotaxic Injection. J. Vis. Exp. (2016).This video demonstrates the step-by-step process for concentrating and purifying lentiviral particles from a mixed suspension containing host cell debris. The procedure utilizes centrifugation, filtration, and PEG-salt precipitation to isolate viral particles while removing soluble impurities. The final product is resuspended in a...

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

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Cited by 2 •

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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