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  • Graphene-Based Microbots for Toxic Heavy Metal Removal and Recovery from Water

    Heavy metal contamination in water is a serious risk to the public health and other life forms on earth. Current research in nanotechnology is developing new nanosystems and nanomaterials for the fast and efficient removal of pollutants and heavy metals from water. Here, we report graphene oxide-based microbots (GOx-microbots) as active self-propelled systems for the capture, transfer, and removal of a heavy metal (i.e., lead) and its subsequent recovery for recycling purposes.
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  • Real Time Observation of Neutrophil White Blood Cell Recruitment to Bacterial Infection In Vivo

    The zebrafish (Danio rerio) is an emerging vertebrate model organism to study infection. The transparent larva comprises a fully functional innate immune system and enables live imaging of fluorescent immune cells in transgenic animals. Zebrafish infection models have been developed for both the human bacterial pathogen Shigella flexneri and the natural fish bacterial pathogen Mycobacterium marinum. Importantly, whilst S. flexneri causes acute infection and is typically used as an inflammatory paradigm, M. marinum causes a chronic disease similar to tuberculosis in humans. Here, we use real time fluorescence microscopy to image transgenic zebrafish larvae with neutrophils (granulocyte white blood cells) expressing the green fluorescent protein eGFP.
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  • Free Webinar On-Demand: Analyze grain size on microstructures the way you need

    Grain size plays an essential role in the mechanical properties of materials. Learn how to overcome problems in sample preparation and how to analyze different materials like, steel, aluminium, titanium, copper and ceramics.
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  • Introduction to Digital Camera Technology

    A significant majority of modern optical microscopy techniques require the use of a digital camera. By working with digital devices researchers can observe specimens on a screen in real time or acquire and store images and quantifiable data. Here we introduce the basic principles behind digital camera technologies commonly encountered in scientific imaging.
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  • Metallography – an Introduction

    Metallography is the study of the microstructure of all types of metallic alloys. It can be more precisely defined as the scientific discipline of observing and determining the chemical and atomic structure and spatial distribution of the constituents, inclusions or phases in metallic alloys. By extension, these same principles can be applied to the characterization of any material.
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  • Metallography with Color and Contrast

    The examination of microstructure morphology plays a decisive role in materials science and failure analysis. There are many possibilities of visualizing the real structures of materials in the light microscope. The image samples shown in this article demonstrate the information potential of some of the techniques used.
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  • Exclusive Aesthetics of Nature

    Gemstones have fascinated people for thousands of years. Rulers and kings used to demonstrate their power and wealth with jewel-studded insignia. Although fine jewellery is still a status symbol of the rich, we now tend to treasure these wonders of nature more for our own pleasure in beauty and harmony.
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