Pulsed Laser Injury
Pulsed Laser Injury - Related Videos
11:20
Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses
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Cited by 2 •
2012
An experimental method to examine the early plasma evolution induced by ultrashort laser pulses is described. Using this method, high quality images of early plasma are obtained with high temporal and spatial resolutions. A novel integrated atomistic model is used to simulate and explain the mechanisms of early plasma.
02:30
Performing Laser-Induced Brain Injury in a Rat Model
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2025
This video demonstrates a procedure to generate precise, controlled brain injury in the rat motor cortex using a laser.
07:13
Laser-inflicted Injury of Zebrafish Embryonic Skeletal Muscle
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Cited by 14 •
2013
The method presented here comprises the precise injury of live zebrafish embryos with high-energy laser pulses and the subsequent analysis of these injuries and their recovery with time. We also show how genetically labeled single or groups of skeletal muscle cells can be tracked during and after laser light induced damage.
10:27
Fabrication of Nano-engineered Transparent Conducting Oxides by Pulsed Laser Deposition
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Cited by 15 •
2013
We describe the experimental method to deposit nanostructured oxide thin films by nanosecond Pulsed Laser Deposition (PLD) in the presence of a background gas. By using this method Al-doped ZnO (AZO) films, from compact to hierarchically structured as nano-tree forests, can be deposited.
02:56
Modeling Retinal Degeneration and Regeneration in Zebrafish Using a Focal Laser Injury
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2025
This video demonstrates a procedure to induce retinal degeneration in adult zebrafish using laser injury. The laser targets photoreceptor cells in the retina, triggering cell death and a degenerative process. This damage activates Müller glia (MG) cells, leading to their dedifferentiation into stem cell progenitors that aid in retinal regeneration.
FAQs
The deposited energy does not produce a single biological outcome. Depending on wavelength, pulse duration, energy, and exposure conditions, rapid absorption may cause localized heating, vaporization, mechanical shock, or photochemical changes. These mechanisms explain why two exposures can affect cells or tissues differently, even when both involve pulsed laser energy.
Pulse duration influences how quickly energy is delivered and which damage pathway becomes prominent. Brief, intense delivery can produce rapid absorption and localized effects, while the biological response may also extend beyond the directly affected region through inflammation and repair. Considering immediate and surrounding responses helps researchers interpret the full outcome of an exposure.
Directly exposed cells or tissues may undergo heating, vaporization, mechanical shock, or photochemical change as they absorb the pulse. Nearby material may instead show inflammation and repair responses. This distinction matters because the observed biological outcome can include both the initial energy-driven injury and subsequent reactions in surrounding tissue.
Studies should account for wavelength, pulse duration, energy, and the conditions under which exposure occurs. These variables determine how rapidly energy is absorbed and which biological effects may appear. Recording them enables researchers to compare responses across experiments, evaluate risks associated with laser-based instruments, and design safer laboratory procedures.
Characterizing how cells and tissues respond to precisely delivered energy helps researchers recognize which exposure conditions may produce unwanted injury. Those findings support risk assessment for laser-based instruments and inform safer clinical and laboratory procedures. Safety decisions can therefore reflect both the immediate tissue effects and the inflammation or repair responses that may follow.
This research is useful when scientists need to understand cellular or tissue responses to controlled laser energy. Its findings inform tissue surgery, imaging, and experimental cell manipulation, while also helping evaluate risks from laser-based instruments. The same biological knowledge can support more deliberate use of laser energy in clinical and laboratory settings.