Re: [Aroid-l] lotus effect with Colocasia fallax

From: =?iso-8859-1?Q?Genevi=E8ve_Ferry?= <jpcferry2 at wanadoo.fr> on 2011.01.18 at 05:35:59 Dear David , Many thanks for your help . Genevi=E8ve   From: david br=F6derbauer Sent: Thursday, January 13, 2011 1:53 PM To: aroid-l@www.gizmoworks.com Subject: Re: [Aroid-l] lotus effect with Colocasia fallax   Hi Ted, Pistia is in fact a very beautiful example for a water-repellent surface. It has to be kept in mind - as you mention - that it generates this superhydrophobic effect with hairs (not with papillate cells like in Nelumbo or Colocasia) that are covered with wax. So, the term 'lotus-effect' describes the syndrom of superhydrophobicity (which means that the contact angle of a water droplet is at least 150=B0), but there are different structures within the Araceae and other plant families, that produce this effect. David Broederbauer > Date: Wed, 12 Jan 2011 13:04:17 -0500 > From: oppenhauser2001@gmail.com > To: aroid-l@www.gizmoworks.com > Subject: Re: [Aroid-l] lotus effect with Colocasia fallax > > Genevi=E8ve, > > The lotus effect is quite common in my experience. It has been getting > a lot of attention in the popular press lately and there are a number > of academic studies of the phenomenon using nano materials. A Google > search will turn up many hits. > > One of the best displays can be seen on the humble aroid Pistia. > Leaves of Pistia will support quite a large water droplet with no > wetting of the leaf surface that supports the hairs. > > Ted Held. > Detroit > > 2011/1/11 Genevi=E8ve Ferry <jpcferry2@wanadoo.fr>: > > Dear aroiders , > > > > Today, three students came looking leaves Colocasia fallax to understand the > > phenomenon of superhydrobicity (lotus effect). > > Do you have information on this phenomenon? > > (Experience, etc. .....) > > > > Thank you for your help. > > > > Best wishes , > > > > Genevi=E8ve Ferry > > _______________________________________________ > > Aroid-L mailing list > > Aroid-L@www.gizmoworks.com > > http://www.gizmoworks.com/mailman/listinfo/aroid-l > > > > > _______________________________________________ > Aroid-L mailing list > Aroid-L@www.gizmoworks.com > http://www.gizmoworks.com/mailman/listinfo/aroid-l _______________________________________________ Aroid-L mailing list Aroid-L@www.gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l ------=_NextPart_000_003B_01CBB6D9.F7E43E00-- --===============8935918103884658447==

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