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About Mantispectra

Mantispectra is a Photonics startup that is developing handheld near-infrared spectrometers based on integrated-photonics technology.

Headquarters Location

Groene Loper 3



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Latest Mantispectra News

Tiny New Sensor – That Could Fit in a Smartphone – Makes the Invisible Visible

Jan 17, 2022

MantiSpectra. Credit: Eindhoven University of Technology Miniaturized near-infrared sensor that could fit in a smartphone can analyze the chemical content of milk and plastics. A TU/e research group has developed a new near-infrared sensor that is easy to make, comparable in size to sensors in smartphones, and ready for immediate use in industrial process monitoring and agriculture. This breakthrough has just been published in Nature Communications. The human eye is a marvelous sensor. Using three different types of photoreceptor cone cells that convert visible light into signals for different colors, the eye gives essential information about the world around us. “When our brain puts the signals together, it makes a prediction of what the signals mean based on our experiences. For example, a red strawberry is sweet, but a green one is not”, explains Kaylee Hakkel, PhD researcher in the Photonics and Semiconductor Nanophysics group at the Department of Applied Physics and co-first author of the study. Mantis shrimp. Size does matter While the human eye is impressive, it’s far from being the most advanced natural light sensor out there. “The eyes of the Mantis shrimp have 16 different types of cells, which are sensitive to ultraviolet light, visible, and near-infrared (NIR) light,” says Hakkel. “And measuring the spectrum in the infrared is most interesting for applications in industry and agriculture, but there’s one major issue – current near-infrared spectrometers are just too big and expensive.” Hakkel and her collaborators have solved this issue by developing a near-infrared sensor that fits onto a small chip. And just like the eye of the Mantis shrimp, it’s got 16 different sensors – but they are all sensitive in the near-infrared. “Miniaturization of the sensors while keeping costs low was a major challenge. So, we designed a new wafer-scale fabrication process to achieve this.” “It’s low-cost because we can produce multiple sensors at the same time, and it’s ready, right now, for use in practical applications in the real world,” Hakkel adds. “The sensor chip is small and could even be embedded in future smartphones.” Cross section of the sensor. Credit: Kaylee Hakkel, Eindhoven University of Technology Solving spectral sensing Andrea Fiore, research lead from the Department of Applied Physics and the Eindhoven Hendrik Casimir Institute, is delighted with their research team’s work. “We’ve been investigating this technology for a number of years . And now we’ve successfully integrated the spectral sensors on a chip, while also dealing with another key issue – efficient use of the data” Normally, when a sensor measures light, the generated signal is used to reconstruct the optical spectrum – or optical fingerprint – for the material. Sensing algorithms are then used to analyze the data. In this new approach, the researchers show that the step of spectral reconstruction isn’t needed. In other words, the signals generated by the sensors can be sent straight to the analysis algorithms. “This significantly simplifies the design requirements for the device,” notes Fiore. Analyzing milk and plastics With the sensor in hand, the researchers then tested the sensor in a number of experiments, as explained by co-first author Maurangelo Petruzzella, who is also working at the startup company MantiSpectra. “We used the sensor to measure the nutritional properties of many materials including milk. Our sensor provided comparable accuracy in the prediction of fat content in milk as conventional spectrometers. And then we used the sensor to classify different types of plastic.” The nutritional properties of milk determine its economic value, and the sensor has been proven to accurately measure these properties. In addition, these measurements could be used to monitor the cow’s overall health. Classification of plastic types using the sensor can help to optimize waste sorting processes. “Besides these applications, we anticipate that the sensor could be used for personalized health care, precision agriculture (monitoring the ripeness of fruit and vegetable for instance), process control, and lab-on-chip testing. We now have a full development kit available based on this technology, the SpectraPod™, that companies and research institutes are using to build their applications. And the great thing is that this sensor could even be commonplace in the smartphones of the future meaning that people could use it at home to check the quality of their food or check aspects of their health,” adds Petruzzella. MantiSpectra future And things are just starting to get exciting for Hakkel, who defends her thesis on January 14th at TU/e. Afterward, she’ll be joining Petruzzella at the startup company MantiSpectra where they will strive to advance the sensor for more practical applications. “I’m really excited to start working on the next phase of the sensor development with MantiSpectra. This sensor could contribute to a cleaner environment and address food waste, applications that are important for everyone.” Reference: “Integrated near-infrared spectral sensing” by Kaylee D. Hakkel, Maurangelo Petruzzella, Fang Ou, Anne van Klinken, Francesco Pagliano, Tianran Liu, Rene P. J. van Veldhoven and Andrea Fiore, 10 January 2022, Nature Communications.

Mantispectra Frequently Asked Questions (FAQ)

  • Where is Mantispectra's headquarters?

    Mantispectra's headquarters is located at Groene Loper 3, Eindhoven.

  • What is Mantispectra's latest funding round?

    Mantispectra's latest funding round is Corporate Minority.

  • Who are the investors of Mantispectra?

    Investors of Mantispectra include PhotonDelta and Eindhoven University of Technology.

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