![]() ![]() This study introduces an ultrasensitive and convenient imaging technique for recognizing residual tumor tissue, paving the way for complete surgical removal. In addition, multiple-microtumor, 4T1 liver-implanted tumor and lung metastasis models were built to prove that this ultrasensitive nanoprobe can recognize tumor residues. The T/NT ratio of residual tumor (< 2 mm) remained 12.4, considerably high to distinguish tumor tissue from normal tissue. In an orthotopic breast cancer model, the intraoperative tumor-to-normal tissue (T/NT) signal ratio of the nanoprobe was 58.8, about nine times that of down-conversion nanoparticles. ![]() The researchers quenched persistent luminescence (PersL) in normal tissue by the outer layer of MnO 2, and recovered it due to the degradation of MnO 2 in tumor microenvironments, improving the sensitivity of tumor imaging. Persistent luminescent nano core (mZGS) has a high sensitivity because it does not need continuous excitation, and there is no background fluorescence interference generated by biological tissues during imaging. Zhang Yun from Fujian Institute of Research on the Structure of Matter of the Chinese Academy of Sciences has developed a novel ultrasensitive nanoprobe with ultrahigh tumor/normal tissue (T/NT) signal ratio to distinguish residual tumor tissues from normal tissues. In a study published in Advanced Science, the research group led by Prof. However, for tiny tumor residues, it requires a relatively high sensitivity. (Sept.Compared with traditional medical imaging, near-infrared (NIR) fluorescence imaging has the advantages of real-time use, high sensitivity, high resolution and no radiation. "Technology at the Extremes." HubbleSite. "Why are Space Telescopes Better than Earth-Based Telescopes?". "Why Infrared? (Earliest Galaxies Edition)" NASA. "How Does the Webb Contrast with Hubble?" NASA. "Near, Mid and Far Infrared." California Institute of Technology. Infrared Processing and Analysis Center.Should you choose to buy one, we'll receive a portion of the sale. HowStuffWorks picks related titles based on books we think you'll like. Learn more about telescopes and the universe in " Guidebook to the Constellations: Telescopic Sights, Tales, and Myths (The Patrick Moore Practical Astronomy Series) " by Phil Simpson. For the complete picture, we need to see it all. We're looking at light emitted in different wavelengths, depending on the object. The thing is, it isn't necessarily "clearer" to see in infrared it just lets us see different things. On the other hand, in visible light, you can only see the bag. Now, it's not that you can see the picture more clearly with infrared, because you can't see the bag. But if you're able to look at it in infrared light, you would no longer see the paper bag, but rather a cat who is pretty ticked at being chosen to illustrate my clever analogy. ![]() That means that Hubble, looking in the ultraviolet, visible or even near-infrared range, can actually see some things that Webb won't be able to distinguish, like cold dust or gases. Remember that seeing in infrared is essentially looking at heat. Planets! Obviously, seeing more stuff is better than seeing less. All of a sudden, we're able to see all sorts of things we couldn't spot before. Webb will also have near-infrared capabilities, but it will one-up Hubble with its ability to look in the mid-infrared region. You're seeing cooler red stars and red giants, and you're certainly able to see things that you couldn't see on a visible spectrum. Īs opposed to those land-based scopes, Hubble is able to capture images in the near-infrared spectrum, which is really cool. Spitzer’s mission was to become NASA’s premier infrared light observatory, offering astronomers the chance to study the universe in this critical part of the electromagnetic spectrum of light with unprecedented clarity and sensitivity. Terrestrial telescopes have trouble seeing through atmospheric turbulence, and - most importantly to our subject today - they also have the crummy luck of having to look through the Earth's atmosphere, which absorbs a lot of the UV and infrared light that space is giving off. Launched in 2003, NASA’s Spitzer Space Telescope was the fourth and final addition to NASA’s Great Observatory program. This infographic illustrates the spectrum of electromagnetic energy, specifically highlighting the portions detected by NASA’s Hubble, Spitzer, and Webb space telescopes. While the differences between orbiting telescopes are a bit complicated, we should be clear that space telescopes in general are going to provide us with a sharper picture than terrestrial ones. The James Webb Space Telescope detects near-infrared and mid-infrared wavelengths, the light beyond the red end of the visible spectrum. ![]()
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