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Laser ablation or photoablation (also called laser blasting [1] [2] [3]) is the process of removing material from a solid (or occasionally liquid) surface by irradiating it with a laser beam. At low laser flux, the material is heated by the absorbed laser energy and evaporates or sublimates .
Laser ablation synthesis in solution (LASiS) is a commonly used method for obtaining colloidal solution of nanoparticles in a variety of solvents. [ 1 ] [ 2 ] Nanoparticles (NPs,), are useful in chemistry, engineering and biochemistry due to their large surface-to-volume ratio that causes them to have unique physical properties. [ 3 ]
Lasers are used to treat cancer in several different ways. Their high-intensity light can be used to shrink or destroy tumors or precancerous growths. Lasers are most commonly used to treat superficial cancers (cancers on the surface of the body or the lining of internal organs) such as basal-cell skin cancer and the very early stages of some cancers, such as cervical, penile, vaginal, vulvar ...
Magnetic nanoparticles can be concentrated to the tumor site via externally applied magnetic field, which is also advantageous in minimizing dose-related side effects. Localized heat can also trigger release of certain anti-cancer immuno-therapeutics loading from the nano-scale cargos if the nanomaterials are heat-responsive.
Cell ablation can also be used as a tool to produce transgenic organisms lacking a cell type, and as a cure for certain diseases such as cancer. [2] The term is not to be confused with genetic ablation: a method of modifying DNA in order to disrupt the production of a specific gene. [3]
This process is observed when a laser has a continuous wave onto the AuNP. Pulsed laser light beams generally results in the AuNP melting or ablation of the particle. [3] Continuous wave lasers take minutes rather than a single pulse time for a pulsed laser, continues wave lasers are able to heat larger areas at once. [3]
We also discovered that the data about the effects of laser acupuncture against reflexology in terms of functional ability, quality of life, and inflammation is quite hazy, and about the effects of red laser versus sham in terms of pain, morning stiffness, and side events. [56]
Hadiyah-Nicole Green (1981-) is an American medical physicist, known for the development of a method using laser-activated nanoparticles as a potential cancer treatment. [1] [2] [3] She is one of 66 black women to earn a Ph.D. in physics in the United States between 1973 and 2012, [4] and is the second black woman and the fourth black person ever to earn a doctoral degree in physics from The ...