Starch-based bio-adsorbents were successfully observed by SEM, previously prepared through coating a 12 nm gold thin film on the non-conductive bio-based beta-cyclodextrins and maltodextrins. The gold was coated by using the DSR1<\/a> SEM coater, a popular Vac Coat ion sputter coater suitable for\u00a0electron microscopy sample preparation<\/strong>.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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The researchers at the University of Turin in Italy worked on the removal of environmentally hazardous salicylic acid in wastewater and surface waters utilizing cross-linked adsorbents derived from starch, like beta-cyclodextrins and maltodextrins. These hydrophilic granular structures showed more than 90% salicylic acid removal with a maximum adsorption capacity of 17 mg.g^{-1<\/sup>\u00a0and recycling up to for cycles.<\/p>\n<\/div>\n<\/div>\n}
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The samples went through SEM for structural analysis to study the morphology of the biopolymers. The samples were coated with a 12 nm gold thin film by Vac Coat DSR1 low-vacuum sputter coater as an SEM preparation step to enhance the conductivity and reduce charge accumulation on the samples\u2019 surface.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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$\"Microscope$ <\/a>
Microscope images and SEM characterization of polymer granules.<\/figcaption><\/figure>\n<\/div>\n
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Preparation of the samples for electron microscopy is crucial to improve the imaging results. Vac Coat SEM coaters, such as sputter coaters,\u00a0carbon coaters<\/strong>, and thermal evaporators are ideal coating devices for coating different conductive layers on electron microscope samples\u2019 surfaces.<\/p>\n
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