Conducted by: David Ademe, Avantes Inc. Theme: Fluorescence Background/Applications: Fluorescence spectroscopy can be used in a wide range of applications, including medical research and analysis. There are a number of researchers that use a fiber-optic probe for in vivo fluorescence spectroscopy to study and test for cancerous cells. Fiber optic needle biopsy plays an important…
Read MoreAbsorption measurements can be used to determine the properties of various samples, such as concentrations of chemicals and the quality of plastics. Not only can absorption spectra be used to identify the characteristics of many types of samples, but it can also be used to characterize the unique spectra of each sample to generate a…
Read MoreMost people in the scientific community understand that size and shape dictate the absorption and emission properties of quantum dots. This is why optical properties of quantum dots can be easily tuned, leading to their utilization in countless applications ranging from optoelectronics to molecular biology. Not as widely known is that the size-dependent absorption properties…
Read MoreA benchtop fluorimeter system provides for the ability to scan across wavelengths of excitation in order to find optimal excitation and emission combinations for fluorescent samples. A common limitation of fiber optic spectroscopy systems is that they typically only allow for isolating excitation wavelengths one at a time using bandpass or other optical filters. Fluorescence…
Read MoreAbsorption and reflection spectra can reveal the unique properties of many different types of materials and samples. This includes biological samples and plant life. This can range from leaf’s, flower petals, grass and lichen. The optical properties of lichens have been traditionally explored in the context of geological mapping where the encrustation of lichens on…
Read MoreThis month’s spectra celebrates the Halloween season as we measure spectra results obtained from BLOOD! Background/Applications: Absorption spectroscopy is used across a wide range of industries and is an effective form of scientific analysis in many fields of research. This includes the medical field for studying blood. For example, absorbance spectroscopy has been used to…
Read MoreIn the realm of life science research and clinical instrumentation, optical spectroscopy, and sensing play critical roles in a variety of areas. Optical spectroscopy provides an ideal means for non-destructive sampling and real-time analysis in vivo or in the lab. The instrumentation needs of these applications have evolved rapidly in recent years with the…
Read MoreThe U.S. Food and Drug Administration (FDA) regulates a variety of industries. Title 21 CFR Part 11, the Electronic Records and Electronic Signatures ruling, is one of the more important FDA regulations pertaining to spectroscopy in industries subject to USDA oversight. This important FDA regulation provides for guidance on the types of software allowed for…
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