In News
- Scientists have developed a method using holographic imaging to detect both viruses and antibodies.
About holographic imaging
- Hologram
- A hologram is a physical structure that diffracts light into an image. The term ‘hologram’ can refer to both the encoded material and the resulting image.
- It is a process that creates three-dimensional images called holograms.
- This is done using laser beams, the properties of interference and diffraction, light intensity recording, and illumination of the recording.
- A holographic image can be seen by looking into an illuminated holographic print or by shining a laser through a hologram and projecting the image onto a screen.
- The Hungarian-British physicist Dennis Gabor was awarded the Nobel Prize in Physics in 1971 “for his invention and development of the holographic method”.
- Uniqueness of holographic images:
- The images created so change according to the relative position of the individual viewer as if the objects displayed are actually present.
Potential applications holographic imaging
- Military mapping.
- Information storage.
- Medical.
- Fraud and security: Eg- small silver rectangle of a dove on your credit card.
- Art.
In News
- Scientists have developed a method using holographic imaging to detect both viruses and antibodies.
About holographic imaging
- Hologram
- A hologram is a physical structure that diffracts light into an image. The term ‘hologram’ can refer to both the encoded material and the resulting image.
- It is a process that creates three-dimensional images called holograms.
- This is done using laser beams, the properties of interference and diffraction, light intensity recording, and illumination of the recording.
- A holographic image can be seen by looking into an illuminated holographic print or by shining a laser through a hologram and projecting the image onto a screen.
- The Hungarian-British physicist Dennis Gabor was awarded the Nobel Prize in Physics in 1971 “for his invention and development of the holographic method”.
- Uniqueness of holographic images:
- The images created so change according to the relative position of the individual viewer as if the objects displayed are actually present.
Potential applications holographic imaging
- Military mapping.
- Information storage.
- Medical.
- Fraud and security: Eg- small silver rectangle of a dove on your credit card.
- Art.
Antibodies
- They are also called immunoglobulin. It is a Y-shaped protective protein produced by the immune system in response to the presence of a foreign substance, called an antigen.
- There are five immunoglobulin classes (isotypes) of antibody molecules found in serum: IgG, IgM, IgA, IgE and IgD and are distinguished by the type of heavy chain they contain.
- When antibodies find their target, they bind to it, which then triggers a cascade of actions that vanquish the invader. Antibodies are part of the so-called “adaptive” immune system, the arm of the immune system that learns to recognize and eliminate specific pathogens.
Source: Indian Express
