DNA Chips and Nucleic Acid Sensors


Aptamers are oligonucleotides or peptide molecules interacting with a specific molecule. Aptamers are usually created by selecting them from a large pool of random sequences, but natural aptamers are also available in in riboswitches. Immunosensors composed of a suitable combination of biomolecule and transducer used together, can be used in certain analytical conditions. Immunosensors tend to rely on the reuse of the same reception area in multiple doses. Biochip is a combination of minute DNA dots connected to a complex area. Scientists are using DNA Biochips to measure the level of gene expression at a time. Each DNA site contains Pico moles of a specific DNA sequence known as a probe. These can be part of a gene or a particle of DNA that is used to reproduce cDNA or cRNA. Probe-target cross breeding combinations are often calculated and detected by fluorophore detection. Targets with a silver or chemiluminescence label to identify the corresponding quantity of nucleic acid sequences in a target. Sensors are devices that respond to physical or chemical events and produce available signals. They add to the human mind's focus on many aspects of modern society. This is because we are less sensitive to chemical or biological processes than to the physical environment (e.g., light, pressure, temperature, or humidity). However, the appropriate chemical or biological layers are strongly linked to quality of life.


  • Immunosensors
  • Biochip

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