In DepthCell Biology

Infrared method could safely identify cells

See allHide authors and affiliations

Science  10 Aug 2018:
Vol. 361, Issue 6402, pp. 541
DOI: 10.1126/science.361.6402.541

eLetters is an online forum for ongoing peer review. Submission of eLetters are open to all. eLetters are not edited, proofread, or indexed.  Please read our Terms of Service before submitting your own eLetter.

Compose eLetter

Plain text

  • Plain text
    No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.
Author Information
First or given name, e.g. 'Peter'.
Your last, or family, name, e.g. 'MacMoody'.
Your email address, e.g. higgs-boson@gmail.com
Your role and/or occupation, e.g. 'Orthopedic Surgeon'.
Your organization or institution (if applicable), e.g. 'Royal Free Hospital'.
Statement of Competing Interests
CAPTCHA

This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.

Image CAPTCHA
Enter the characters shown in the image.

Vertical Tabs

  • Weak infrared beam of light is enough for identifying cells

    Mitch Leslie wrote an article of infrared method for identifying cells (1). In GPS communications, weak repetitive signals are sent from satellites in order to increase the signal strength at the GPS receivers. The repetitive signals are simply added and accumulated with noises. However, the noises are eliminated by themselves because of the randomness of noises. This method is called a stochastic method (2,3). Therefore, instead of strong infrared beam of light, weak infrared beam of light can be used for identifying cells. The weaker intensity of infrared beam of light, the better and the more gentle for our health. In GPS communications, typical received signal power from a GPS satellite is -127.5 dBm (0.178 fW), while thermal noise floor is −111 dBm.

    References:
    1. Mitch Leslie, Science 10 Aug 2018: Vol. 361, Issue 6402, pp. 541
    2. Y. Takefuji, http://science.sciencemag.org/content/357/6354/849/tab-e-letters
    3. http://science.sciencemag.org/content/360/6386/243/tab-e-letters

    Competing Interests: None declared.