Dear All, I have ultra-thin silicon membranes of thickness < 25 nm, which I want to send through courier to another city for TEM imaging. In the first attempt I had wrapped the membranes using tissue papers and neatly packed in plastic boxes with soft cushion, but the membranes broke during transit. Is there any better way to transport such thin membranes without breakage? How about membrane boxes that are available commercially? Thank you -- H V Balachandra Achar