chanelink logo
CHANELINK
繁体中文

Researchers Obtaining Scientific Returns from Raman Spectroscopy for External Bioexploration Using Lasers

868
2023-10-23 15:09:27
查看翻譯

We investigated the potential of laser selection in a wide optical range from ultraviolet to visible light, and then to infrared (excitation wavelengths of 325, 532, 785, and 1064 nm), in order to combine and analyze extreme microorganisms related to Earth (such as Cryptomeria elegans, cold floating nematodes, and circular green algae), carbon water compound molecules, as well as simulated mineral mixtures (P-MRS, S-MRS, LRS, and JSC-1) of weathering layers on the Martian and lunar surfaces.

We demonstrate that the optimization of laser photon energy provides (at least one selected excitation wavelength) high-end quality Raman spectroscopy for each inspection sample. In most cases, the infrared spectral range is advanced for biological samples, while excitation within the visible and ultraviolet spectral ranges is usually advantageous, or at least sufficient to accurately identify/analyze mineral phases under luminescent laser spots on simulated planetary surfaces.

UV excitation does not always provide a significant contrast in Raman Stokes response to induced photoluminescence in the studied biomolecules. The most prominent feature in the Raman spectrum of biological samples is assigned to their specific pigments, and is also considered a biomolecular feature of extreme microorganisms. The key issue of the specific advantages and limitations of each specific excitation source means that research can obtain scientific returns from Raman spectroscopy for external biological exploration, such as the optimal trading between single or double excitation wavelengths of biological and geological spectral data.

Source: Laser Network

相關推薦

  • 3D printed chocolate: a delicious fusion of innovation and sustainable development

    In the era of sustainable development and cutting-edge technology, the integration of 3D printing and culinary art is not only an innovation, but also a proof of human creativity. Imagine in such a world, your desserts are not just coming out of the kitchen, but carefully designed and printed layer by layer. This is not a glimpse of the distant future, but the reality of today, as developers have ...

    2024-02-19
    查看翻譯

  • Lameditech of South Korea was listed on the KOSDAQ exchange on the 17th

    On June 11, 2024, Korean laser medical equipment manufacturer Lameditech successfully completed its initial public offering and was listed on the KOSDAQ exchange on the 17th.Last month, its public offering price was fixed at 16000 Korean won. In this public offering, Lameditech issued a total of 1298000 shares, raising approximately 20.8 billion Korean won. Since Lameditech's debut on KOSDAQ, as o...

    2024-06-26
    查看翻譯

  • LAP launches CAD-PRO Xpert, an industrial laser projector using cutting-edge technology platforms

    LAP launched its latest version of the industrial laser projection system CAD-PRO Xpert at this year's JEC World. This innovation signifies the company's commitment to providing the most advanced laser engineering for various industries to achieve precise, efficient, and reliable laser guidance and positioning tasks, which is an important milestone.Redefining laser projection in the production pro...

    2024-03-07
    查看翻譯

  • Diamond Light Source and NPL reach a new five-year agreement

    Recently, two leading UK scientific institutions, Diamond Light Source and National Physical Laboratory (NPL), have reached a new five-year agreement to promote joint collaborative efforts.The agreement was approved by signing a Memorandum of Understanding (MoU), which will bring these two institutions together.Diamond Light Source is a national synchrotron facility in the UK known for generating ...

    2024-04-25
    查看翻譯

  • Underwater laser cutting has been achieved with several advantages over common technologies such as saws, automatic wire saws and plasma cutting machines

    Due to the growing demand for renewable energy, the need for modern technologies to dismantle existing underwater infrastructure is also growing.For example, in order to boost the power of an offshore wind farm to a higher level, the existing old steel frame, which may be below sea level, must first be removed so that engineers can rebuild the steel frame for higher power.In laboratory tests, rese...

    2023-09-13
    查看翻譯