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A new method using hexamethyldisilazane for preparation of soft insect tissues for scanning electron microscopy

, : A new method using hexamethyldisilazane for preparation of soft insect tissues for scanning electron microscopy. Stain Technology 58(6): 347-351

A new rapid procedure for preparing soft internal tissues from insects that allows air drying was found to compare favorably with tissues prepared by critical point drying. In the new procedure, tissues were fixed in 1% glutaraldehyde, dehydrated through a graded ethanol series, immersed in hexamethyldisilazane (HMDS) for 5 minutes, and air dried. Tissues prepared by both the HMDS treatment and by critical point drying were coated with gold for scanning electron microscopy. Tissues prepared by the HMDS treatment did not shrink or distort upon air drying and excellent surface detail was preserved. The HMDS treatment required about 5 minutes, whereas the critical point drying procedure required about 1.5 hours.


PMID: 6679126

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