[Spm] Re: Message 10 on Fluid Cells
Bob Turner
bob.turner.uk at googlemail.com
Tue Nov 13 06:29:02 EST 2007
Dear Will Rouesnel,
I've used both types of cell and I suggest you get the direct drive,
i.e. the one with the separate drive piezo for maximum flexibility -
you can still drive it using the main piezo if need to by switching
Z-Mod on or off, I think. The direct drive cell I've used is made of
plastic with a quartz window as opposed to being made entirely out of
quartz. We haven't had the direct drive cell for very long so I can't
comment on longevity!
Regards,
Bob Turner
University of Leeds
On 13/11/2007, spm-request at spmlist.di.com <spm-request at spmlist.di.com> wrote:
> Send Spm mailing list submissions to
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>
> Today's Topics:
>
> 1. Re: Mica (Zoya Leonenko)
> 2. Post request for your SPM list (Gaston Nicolessi)
> 3. Mica sheets (Ilya Reviakine)
> 4. Mica sheets (Neander, Rosalyn (GE, Research))
> 5. RE: mica sheets (Ben Ohler)
> 6. Reply to G. Oncins (Alexander Bittner)
> 7. Preparing mica substrates (Don Chernoff at ASM)
> 8. Mica/punches (Ilya Reviakine)
> 9. (no subject) (Filby, Andre)
> 10. Indirect vs Direct Drive Fluid Cells (Will Rouesnel)
> 11. looking for CP scanner and head (Pawel Czuba)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 9 Nov 2007 10:20:06 -0500
> From: "Zoya Leonenko" <zleonenk at sciborg.uwaterloo.ca>
> Subject: [Spm] Re: Mica
> To: spm at spmlist.di.com
> Message-ID:
> <a05f45270711090720y7e57f2cscdd77abea5c30453 at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> We use ASTMV-2 quality, from Asheville-Schoonmaker Mica Co., Newport
> News, VA for lipids, it works nicely.
>
> Zoya Leonenko
>
> On Nov 9, 2007 4:36 AM, <spm-request at spmlist.di.com> wrote:
> > Send Spm mailing list submissions to
> > spm at spmlist.di.com
> >
> > To subscribe or unsubscribe via the World Wide Web, visit
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> >
> > or, via email, send a message with subject or body 'help' to
> > spm-request at spmlist.di.com
> >
> > You can reach the person managing the list at
> > spm-owner at spmlist.di.com
> >
> > When replying, please edit your Subject line so it is more specific
> > than "Re: Contents of Spm digest..."
> >
> >
> > Today's Topics:
> >
> > 1. mica sheets (Gerard Oncins Marco)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Thu, 08 Nov 2007 11:25:33 +0100
> > From: Gerard Oncins Marco <goncins at ub.edu>
> > Subject: [Spm] mica sheets
> > To: "digest <\"\" \">" <spm\"@spmlist.di.com>
> > Message-ID: <4732E41D.9000305 at ub.edu>
> > Content-Type: text/plain; charset="iso-8859-1"
> >
> > Hi everybody,
> > I am searching for highest quality mica to use it as a substrate for
> > depositing biological samples (phospholipid bilayers, fatty acids, etc).
> > We have been buying mica sheets for a while but I am not sure which is
> > the best way to cut it into small pieces that fit inside our mmode head
> > (when using a blade the sides of the mica piece flake and it's sort of a
> > mess). Any advice about how to circumvent this problem will be really
> > welcome.
> > -------------- next part --------------
> > A non-text attachment was scrubbed...
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> >
> > ------------------------------
> >
> > _______________________________________________
> > Spm mailing list
> > Spm at spmlist.di.com
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> >
> >
> > End of Spm Digest, Vol 40, Issue 2
> > **********************************
> >
>
>
>
> --
> Zoya Leonenko
> Associate Professor
> Department of Physics and Astronomy
> Department of Biology
> University of Waterloo
> 200 University Ave West
> Waterloo, Ontario, N2L 3G1
> Phone: 1-519-888-4567, ext 38273
> Fax: 1-519-746-8115
> Office: PHY 354, Lab: PHY 335
> e-mail: zleonenk at sciborg.uwaterloo.ca
> website: http://www.physics.uwaterloo.ca/people/leonenko/index.html
>
>
> ------------------------------
>
> Message: 2
> Date: Fri, 02 Nov 2007 16:35:59 +0100
> From: Gaston Nicolessi <gaston.nicolessi at nanotimes-corp.com>
> Subject: [Spm] Post request for your SPM list
> To: spm at spmlist.di.com
> Message-ID: <472B43DF.8080903 at nanotimes-corp.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Dear sir,
>
> Please find hereafter a post request regarding our project to develop an
> educational SPM (Scanning Probe Microscopy) simulation software tool.
> The development of such an educational tool is of great interest to the
> community of nanostudents, teachers and researchers.
>
> We need the word to be spread out as largely as possible so we can best
> integrate the community's opinion and feedback regarding the priority
> features and functionalities of the software.
>
> Thanking you in advance,
> Best regards,
>
> Gaston Nicolessi
> Tel : +33 9 52 45 51 77
> http://www.nanotimes.fr
>
> ----------------------------------------------------------------------------
> Title : Nanotimes develops new simulation software tool for
> nano-education : Nt_Scholar
>
> To meet the growing need for educational tools in the field of SPM
> teaching, Nanotimes (the French specialist in nanoscale interpretation
> of SPM data) develops Nt_Scholar, a unique software tool designed to
> simulate SPM experiments during class hours.
> Around the globe, teachers and students are in need of hands-on,
> easy-to-use software educational tools whether in the framework of
> physics, chemistry, or materials science. And this is even more crucial
> for nano-education.
> On the one hand, teachers say they would appreciate an easy and
> hassle-free classroom demonstration software to support their lectures
> on SPM (STM, AFM). On the other hand, students say such tools will
> facilitate their first step into practical nanoscience and SPM
> experiments. They are in need of an easily accessible software in and
> outside class, wether for a lab assignment or a research project.
> For the last months, Nanotimes has asked some of the most eminent
> teachers from various universities in Europe, the USA and Japan, to list
> the vital features for such a product re. performance, usability,
> accuracy and stability. Those requirements will be met and implemented
> in the first Nt_Scholar version.
>
> If you're interested in such a software (evaluation,
> co-development...), please send Nanotimes an email at info at nanotimes.fr
> or check our website http://www.nanotimes.fr
>
> Sincerely yours,
>
> Gaston Nicolessi
> Nanotimes.
> -----------------------------------------------------------------------------------------
>
>
> ------------------------------
>
> Message: 3
> Date: Fri, 09 Nov 2007 11:49:42 +0100
> From: Ilya Reviakine <IReviakine at cicbiomagune.es>
> Subject: [Spm] Mica sheets
> To: spm at spmlist.di.com
> Message-ID: <47343B46.3040101 at cicbiomagune.es>
> Content-Type: text/plain; format=flowed; charset="ISO-8859-1"
>
> We buy out mica from SPI supplies, http://www.2spi.com/, catalogue
> numbers 01877-MB and 01792-CA. Works fine.
> Also, for AFM purposes, I prefer to cleave them with scotch tape rather
> than a razor blade, although when using larger sheets for confocal
> microscopy (same supplier) we use syringe needles or razor blades.
>
> Best,
>
> Ilya.
>
>
>
> > Hi everybody,
> > I am searching for highest quality mica to use it as a substrate for
> > depositing biological samples (phospholipid bilayers, fatty acids,
> > etc). We have been buying mica sheets for a while but I am not sure
> > which is the best way to cut it into small pieces that fit inside our
> > mmode head (when using a blade the sides of the mica piece flake and
> > it's sort of a mess). Any advice about how to circumvent this problem
> > will be really welcome.
> > _______________________________________________
> > Spm mailing list
> > Spm at spmlist.di.com
> > http://www.veeco.com/library/community_type.php?type_id=2amp;sub_id=2amp;tech_sub_id=1
> >
>
> --
> Dr. Ilya Reviakine
> Group Leader
> CIC BiomaGUNE
> Paseo Miramón 182
> Ed. Empresarial C
> Parque Tecnológico de San Sebastián
> 20009 San Sebastián
> Gipuzkoa, SPAIN.
> E-mail: IReviakine at cicbiomagune.es
> Alternative E-mail: ireviakine at yahoo.com
> http://personal.cicbiomagune.com/ireviakine/
> Office Phone: + 34 (0) 94 300 53 12
> Mobile Phone: + 34 (0) 67 110 86 62
> Fax: + 34 (0) 94 300 53 15
>
>
>
> Este correo electrónico se ha enviado desde CIC biomaGUNE. Su contenido, y el de cualquier fichero que le acompañe, son confidenciales y de uso exclusivo de la persona física o jurídica a la que va destinado. Está estrictamente prohibida, y puede ser ilegal, la copia o difusión no autorizada de este correo, o de sus documentos adjuntos, o revelar cualquier información que pudieran contener. Si ha recibido este correo electrónico por error, por favor notifíquelo al remitente o contacte con el teléfono + 34 943 00 53 00 y bórrelo de su sistema informático.
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>
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> This e-mail is from CIC biomaGUNE. The e-mail and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. Any unauthorised dissemination or copying of this e-mail or its attachments, and any use or disclosure of any information contained in them, is strictly prohibited and may be illegal. If you have received this e-mail in error, please notify or telephone + 34 943 00 53 00 and delete it from your system.
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>
>
>
>
> ------------------------------
>
> Message: 4
> Date: Fri, 9 Nov 2007 07:46:49 -0500
> From: "Neander, Rosalyn (GE, Research)" <neander at ge.com>
> Subject: [Spm] Mica sheets
> To: <spm at spmlist.di.com>
> Message-ID:
> <B7CF78F602FEE04E8FDC10012A2F5D4A026D1FC3 at CINMLVEM12.e2k.ad.ge.com>
> Content-Type: text/plain; charset="us-ascii"
>
> You can find some nice 12mm sized disc mica from Ted Pella.
>
> -----Original Message-----
> From: spm-bounces at spmlist.di.com [mailto:spm-bounces at spmlist.di.com] On
> Behalf Of spm-request at spmlist.di.com
> Sent: Friday, November 09, 2007 4:39 AM
> To: spm at spmlist.di.com
> Subject: Spm Digest, Vol 40, Issue 2
>
> Send Spm mailing list submissions to
> spm at spmlist.di.com
>
> To subscribe or unsubscribe via the World Wide Web, visit
>
> http://www.veeco.com/library/community_type.php?type_id=2&sub_id=2&tech_
> sub_id=1
>
> or, via email, send a message with subject or body 'help' to
> spm-request at spmlist.di.com
>
> You can reach the person managing the list at
> spm-owner at spmlist.di.com
>
> When replying, please edit your Subject line so it is more specific than
> "Re: Contents of Spm digest..."
>
>
> Today's Topics:
>
> 1. mica sheets (Gerard Oncins Marco)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 08 Nov 2007 11:25:33 +0100
> From: Gerard Oncins Marco <goncins at ub.edu>
> Subject: [Spm] mica sheets
> To: "digest <\"\" \">" <spm\"@spmlist.di.com>
> Message-ID: <4732E41D.9000305 at ub.edu>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi everybody,
> I am searching for highest quality mica to use it as a substrate for
> depositing biological samples (phospholipid bilayers, fatty acids, etc).
>
> We have been buying mica sheets for a while but I am not sure which is
> the best way to cut it into small pieces that fit inside our mmode head
> (when using a blade the sides of the mica piece flake and it's sort of a
> mess). Any advice about how to circumvent this problem will be really
> welcome.
> -------------- next part --------------
> A non-text attachment was scrubbed...
> Name: goncins.vcf
> Type: text/x-vcard
> Size: 377 bytes
> Desc: not available
> Url :
> http://spmlist.di.com/pipermail/spm/attachments/20071108/41b2d06b/goncin
> s-0001.vcf
>
> ------------------------------
>
> _______________________________________________
> Spm mailing list
> Spm at spmlist.di.com
> http://www.veeco.com/library/community_type.php?type_id=2amp;sub_id=2amp
> ;tech_sub_id=1
>
>
> End of Spm Digest, Vol 40, Issue 2
> **********************************
>
>
>
> ------------------------------
>
> Message: 5
> Date: Fri, 9 Nov 2007 07:21:44 -0800
> From: "Ben Ohler" <bohler at veeco.com>
> Subject: RE: [Spm] mica sheets
> To: "Gerard Oncins Marco" <goncins at ub.edu>, "SPM Forum"
> <spm at spmlist.di.com>
> Message-ID:
> <9B547B0BF4B65E4ABC07A5A18FD7A742AD4668 at sboexch1.int.veeco.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
>
> Hi Gerard,
>
> Alexandre's advice is good.
>
> I'll add a couple other mica suppliers, though they are based here in the US:
>
> Spruce Pine Mica
> P.O. Box 219, Spruce Pine, NC 28777
> phone 828-765-4241
> fax 828-765-7192
> http://www.spruce-pine-mica.com/
> (Inexpensive bulk sheets of mica, I buy ASTM V-2 quality, grade #2 by the pound. The grade specifies the average size of sheet meeting the given quality specification.)
>
>
> A variety of mica in nicely cut shapes are available from Ted Pella:
> http://www.tedpella.com/vacuum_html/46-52.htm
>
>
>
> Also, to give you an idea of the punch we use here:
>
> McMaster-Carr (www.mcmaster.com)
> Part# 3861A56
> Metric Shim-Stock Punch Set With 9 Punches, 3.5mm To 19.5 mm
>
>
> Regards,
>
> -Ben
>
>
> Ben Ohler, Ph.D.
> Staff Scientist
> MultiMode Product Manager
> Veeco Instruments
> 112 Robin Hill Rd.
> Goleta, CA 93117
> 805-967-1400 x2426
> 805-967-7717 (fax)
> www.veeco.com
>
>
>
> > -----Original Message-----
> > From: spm-bounces at spmlist.di.com [mailto:spm-bounces at spmlist.di.com]On
> > Behalf Of Gerard Oncins Marco
> > Posted At: Thursday, November 08, 2007 2:26 AM
> > Posted To: SPM
> > Conversation: [Spm] mica sheets
> > Subject: [Spm] mica sheets
> >
> >
> > Hi everybody,
> > I am searching for highest quality mica to use it as a substrate for
> > depositing biological samples (phospholipid bilayers, fatty
> > acids, etc).
> > We have been buying mica sheets for a while but I am not sure
> > which is
> > the best way to cut it into small pieces that fit inside our
> > mmode head
> > (when using a blade the sides of the mica piece flake and
> > it's sort of a
> > mess). Any advice about how to circumvent this problem will be really
> > welcome.
> >
>
>
>
> ------------------------------
>
> Message: 6
> Date: Fri, 09 Nov 2007 16:51:57 +0100
> From: Alexander Bittner <a.bittner at fkf.mpg.de>
> Subject: [Spm] Reply to G. Oncins
> To: spm at spmlist.di.com
> Message-ID: <4734821D.8030802 at fkf.mpg.de>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Reply to:
>
> Subject:
> [Spm] mica sheets
> From:
> Gerard Oncins Marco <goncins at ub.edu>
> Date:
> Thu, 08 Nov 2007 11:25:33 +0100
>
>
> -------------------
>
> Hi,
>
> We had similar problems and now use laser cutting. We are lucky to have
> a crystal preparation/technology group here who have a laser cutter. I
> have no clue what type it is, but I could forward you to them!
>
> Alexander Bittner
>
>
> -------------------------
> Priv.Doz. Dr. Alexander Bittner
> Dept. of Nanoscale Science
> Max-Planck-Institut fuer Festkoerperforschung, Stuttgart (Germany)
> a.bittner at fkf.mpg.de
>
>
>
>
> ------------------------------
>
> Message: 7
> Date: Fri, 9 Nov 2007 17:17:57 -0500
> From: "Don Chernoff at ASM" <donc at asmicro.com>
> Subject: [Spm] Preparing mica substrates
> To: "SPM List" <spm at spmlist.di.com>, <goncins at ub.edu>
> Message-ID: <007601c8231e$63c40180$6601a8c0 at asm15>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Gerard Oncins Marco asked about cutting mica sheets to fit in a multimode afm.
> I use the procedure suggested to me by Helen or Paul Hansma in 1991:
> a) cut the mica sheets in disk form using a simple tool and die punch. We use a "Precision Brand" manual punch. It can make 9 different sizes from 1/8" to 3/4". I use the 1/2" diameter size
> b) glue the mica disk to a steel disk
> c) cleave the mica using scotch tape. If you don't see a fairly smooth circle on the scotch tape then try again.
>
> In my work, I found that the punched disks produced better results (fewer defects on the surface) than I got by cutting squares with a scissors. Even so, I find that there can be variations in surface characteristics from sample to sample. For example, some cleaved surfaces have hydrophobic regions that prevent water droplets from spreading smoothly.
>
> I hope this helps.
>
> regards,
> Don
> =============================================
> Don Chernoff, Ph.D., President
> Advanced Surface Microscopy, Inc. E-Mail: donc at asmicro.com
> 3250 N. Post Rd., Ste. 120 Voice: 317-895-5630
> INDIANAPOLIS IN 46226 USA Toll free: 800-374-8557 (in USA & Canada)
> web: http://www.asmicro.com Fax: 317-895-5652
> [business activities: analytical services in AFM, AFM probes, consulting, training,
> calibration and test specimens, calibration and measurement software,
> used NanoScope equipment.]
> =============================================
> original message.
> Date: Thu, 08 Nov 2007 11:25:33 +0100
> From: Gerard Oncins Marco <goncins at ub.edu>
> Subject: [Spm] mica sheets
>
> Hi everybody,
> I am searching for highest quality mica to use it as a substrate for
> depositing biological samples (phospholipid bilayers, fatty acids, etc).
> We have been buying mica sheets for a while but I am not sure which is
> the best way to cut it into small pieces that fit inside our mmode head
> (when using a blade the sides of the mica piece flake and it's sort of a
> mess). Any advice about how to circumvent this problem will be really
> welcome.
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: http://spmlist.di.com/pipermail/spm/attachments/20071109/84c6b127/attachment-0001.html
>
> ------------------------------
>
> Message: 8
> Date: Sat, 10 Nov 2007 15:39:47 +0100
> From: Ilya Reviakine <IReviakine at cicbiomagune.es>
> Subject: [Spm] Mica/punches
> To: spm at spmlist.di.com
> Message-ID: <4735C2B3.6040209 at cicbiomagune.es>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi -
>
> Punch and die sets: www.precisionbrand.com
>
>
> I. Reviakine.
>
>
> > Good afternoon,
> >
> > I think I can answer precisely your question since I've been working on lipid bilayers tethered on mica during 5 years.
> > 1) The 1st thing you have to know is that you must keep your mica sheets in a dry place (for instance a small cabinet with silica gel) otherwise the sheet can easily get polluted or hydrated.
> > 2) You have several muscovite mica providers. The 3 best are:
> > Metafix
> > EMS (designed at the origin for optical measurements) having various quality from V1 to V5. V1 is the best.
> > Good Fellow. I especially recommend this last one for lipid bilayers.
> > 3) There is only one way to obtain plane and homogeneous mica sheets: use a punch, and only push once and brutally (if you try to do it in several steps, you will damage your disk and the surface won't be homogeneous). Don't try to cut it with scissors or whatever... Those punches are not easy to find. There is a Canadian manufacturer called Newman tools.
> > 4) There is only one way to cleave the mica: use a double face tape and cleave it quickly. Then have a look at your tape under light and see if you have a bright homogeneous disk. This might take you one test as well as 50 times, depending on the mica quality. Then you should immediately put the mica disk in liquid since it can be very quickly contaminate.
> > 5) Beyond this, you have to master the parameters for fusion of vesicles or Langmuir-Blodgett transfer, but that's another story.
> > If this is not enough, feel free to contact me directly or by the forum.
> > Greetings,
> >
> > Alexandre
> >
> >
> > Alexandre Berquand, PhD
> >
> > Life Science Application Engineer
> >
> > Veeco Instruments - Europe
> >
> > Solutions for a nanoscale world(tm)
> >
> > Dynamostrasse 19
> >
> > D-68165 Mannheim
> >
> > (: +49 621 84210 69
> >
> > Fax: +49 621 84210 22
> >
> > email: aberquand at veeco.de
> >
> >
> >
> > Registergericht Mannheim HRB 10094 - Geschäftsführer Francis Steenbeke
> >
> > www.veeco-europe.com
> >
> > -----Original Message-----
> > From: spm-bounces at spmlist.di.com [mailto:spm-bounces at spmlist.di.com] On Behalf Of spm-request at spmlist.di.com
> > Sent: Friday, November 09, 2007 10:43 AM
> > To: SPM Forum
> > Subject: Spm Digest, Vol 40, Issue 2
> >
> > Send Spm mailing list submissions to
> > spm at spmlist.di.com
> >
> > To subscribe or unsubscribe via the World Wide Web, visit
> > http://www.veeco.com/library/community_type.php?type_id=2&sub_id=2&tech_sub_id=1
> >
> > or, via email, send a message with subject or body 'help' to
> > spm-request at spmlist.di.com
> >
> > You can reach the person managing the list at
> > spm-owner at spmlist.di.com
> >
> > When replying, please edit your Subject line so it is more specific
> > than "Re: Contents of Spm digest..."
> >
> >
> > Today's Topics:
> >
> > 1. mica sheets (Gerard Oncins Marco)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Thu, 08 Nov 2007 11:25:33 +0100
> > From: Gerard Oncins Marco <goncins at ub.edu>
> > Subject: [Spm] mica sheets
> > To: "digest <\"\" \">" <spm\"@spmlist.di.com>
> > Message-ID: <4732E41D.9000305 at ub.edu>
> > Content-Type: text/plain; charset="iso-8859-1"
> >
> > Hi everybody,
> > I am searching for highest quality mica to use it as a substrate for
> > depositing biological samples (phospholipid bilayers, fatty acids, etc).
> > We have been buying mica sheets for a while but I am not sure which is
> > the best way to cut it into small pieces that fit inside our mmode head
> > (when using a blade the sides of the mica piece flake and it's sort of a
> > mess). Any advice about how to circumvent this problem will be really
> > welcome.
> > -------------- next part --------------
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> ------------------------------
>
> Message: 9
> Date: Sun, 11 Nov 2007 18:02:50 +0100
> From: "Filby, Andre" <Andre.Filby at ine.fzk.de>
> Subject: [Spm] (no subject)
> To: <spm at spmlist.di.com>
> Message-ID: <AF6C252B3A7ACD478D6D6252304A980E11F680 at FZKMSX4.ka.fzk.de>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi all,
> I´m using the AFM in order to obtain force-distance curves in water. I´m using colloid probe technique (with a latex particle) and mica as substrate. In certain conditions I see repulsive forces (the curve "bends" until it gets into contact). What I´d like to know, how does one exactly quantify these repulsive forces? I know how the point of contact is extrapolated (through the 2 linear regimes) but I don´t know if there is any special procedure in order to quantify the repulsive force. Could it be that one has to drop a perpendicular of these 2 linear regimes?
>
> Thanks in advance for your help.
>
> André
>
>
> ________________________________
>
> Von: spm-bounces at spmlist.di.com im Auftrag von spm-request at spmlist.di.com
> Gesendet: Fr 09.11.2007 10:43
> An: spm at spmlist.di.com
> Betreff: Spm Digest, Vol 40, Issue 2
>
>
>
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> Today's Topics:
>
> 1. mica sheets (Gerard Oncins Marco)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 08 Nov 2007 11:25:33 +0100
> From: Gerard Oncins Marco <goncins at ub.edu>
> Subject: [Spm] mica sheets
> To: "digest <\"\" \">" <spm\"@spmlist.di.com>
> Message-ID: <4732E41D.9000305 at ub.edu>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi everybody,
> I am searching for highest quality mica to use it as a substrate for
> depositing biological samples (phospholipid bilayers, fatty acids, etc).
> We have been buying mica sheets for a while but I am not sure which is
> the best way to cut it into small pieces that fit inside our mmode head
> (when using a blade the sides of the mica piece flake and it's sort of a
> mess). Any advice about how to circumvent this problem will be really
> welcome.
> -------------- next part --------------
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>
> ------------------------------
>
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>
> End of Spm Digest, Vol 40, Issue 2
> **********************************
>
>
>
>
>
> ------------------------------
>
> Message: 10
> Date: Mon, 12 Nov 2007 19:22:37 +1100
> From: "Will Rouesnel" <supremeoverlordofcreation at gmail.com>
> Subject: [Spm] Indirect vs Direct Drive Fluid Cells
> To: <spm at spmlist.di.com>
> Message-ID: <001601c82505$32c49f70$0f01a8c0 at icarus>
> Content-Type: text/plain; charset="us-ascii"
>
> I was just recently okayed from my supervisor to go ahead and order a fluid
> cell for our group, but I'm unclear on the strengths and weaknesses of the
> indirect vs direct drive fluid cells. The instrument I've been using
> previously has been a DI3000 with a Bioscope indirect drive fluid cell (for
> contact mode experiments). As I understand it, the direct drive fluid cell
> simply adds the normal piezo-oscillator for the cantilever to the cell
> itself, thus not requiring the oscillatory signal to be applied to the
> Z-axis of the scanner head. From my supplier, both cells are the same price
> - is there any particular reason to choose one over the other? Are direct
> drive cells more fragile, or similar?
>
> Will Rouesnel
> University of New South Wales
> -------------- next part --------------
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> ------------------------------
>
> Message: 11
> Date: Mon, 12 Nov 2007 13:38:14 +0100
> From: "Pawel Czuba" <pawel at surf.if.uj.edu.pl>
> Subject: [Spm] looking for CP scanner and head
> To: spm at spmlist.di.com
> Message-ID: <47385746.21189.97F142 at pawel.surf.if.uj.edu.pl>
> Content-Type: text/plain; charset=US-ASCII
>
> Dear All,
> We are interested in buying second hand parts for an old CP (or CP-
> II) microscope (Veeco, former ThermoMicroscopes, former Park
> Scientific Instruments) i.e.:
> 1. 100 um scanner
> 2. STM or multitask head
>
> Please send offers by email directly to Piotr Piatkowski:
> piatkows at if.uj.edu.pl
> or to me: pawel at surf.if.uj.edu.pl
>
> Best regards,
> Pawel Czuba
>
> -------
> Dr. Pawel Czuba
> Institute of Physics, Jagiellonian University
> Reymonta 4, 30-059 Krakow, Poland
> phone: (+4812) 663 5625 fax: (+4812) 633 7086
>
>
>
>
>
> ------------------------------
>
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> End of Spm Digest, Vol 40, Issue 4
> **********************************
>
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