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The identification of phytoplankton is currently an important issue to prevent the aquatic environment. The growth of one or several phytoplankton species can lead to hyper eutrophication and causes lethal consequences on other organisms. In this paper, the selective recognition of invading species is investigated by automatic recognition algorithms of optical and fluorescence imaging. Firstly, morphological...
This work presents the design, fabrication and characterization of a system based on thin film technology for the selective detection of the natural fluorescence of Ochratoxin A. To this aim, the system optically couples an amorphous silicon photosensor with a long pass multi-dielectric filter, deposited on glass substrates. In particular, the filter rejects the wavelengths coming from the excitation...
In this work we present a hyperspectral imaging device (HSI) developed at INRIM and integrated in an inverted microscope for application in multi labeled fluorescence microscopy. The HSI device is realized with a scanning Fabry-Perot interferometer and a fast CMOS camera integrated in an optical microscope. The HSI camera alone has been tested for some fluorescent molecules in multi-well samples to...
Here, we report on the design, fabrication, and verification of a novel CMOS-imager-based contact imaging system. We acquired fluorescent images from live neurons by monitoring calcium changes with Fura-2 dye. Our current device consists of a removable absorption filter interfaced with a CMOS imaging sensor and an external DG-4 lamp for excitation. Fura-2 loaded Lymnaea stagnalis neurons were stimulated...
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