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OfflineBaby_Hitler
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Electrostatic & live collection of spores
    #7961189 - 01/31/08 05:30 PM (16 years, 1 day ago)

Just wondering what you folks thought about the idea of using an electrostatic field to collect spores.

I know some species do not print very well. I myself have seen $40 prints with almost no visible trace of spores. I think a device in the form of a small card attached to thin wires could be clipped onto the stems of mushrooms that would collect possibly many many times more spores than old fashioned printing of caps from decapitated mushrooms.

For the more frail species, something else would have to be used to hold the card.


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OfflineCiv
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Re: Electrostatic & live collection of spores [Re: Baby_Hitler]
    #7968069 - 02/02/08 10:09 AM (15 years, 11 months ago)

Sounds like the start of a cool idea, how would you insure it was only cubensis spores that we're harvested?


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So, wash it well afterwards & DON'T tell them..."  -Agar


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OfflineBaby_Hitler
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Re: Electrostatic & live collection of spores [Re: Civ]
    #7968626 - 02/02/08 01:01 PM (15 years, 11 months ago)

Regular spore prints aren't 100% pure. Keeping the collector close to the cap, and controlling the strength of the electric field. I'm thinking a relatively weak field close to the cap should collect a reasonably pure harvest.

On the other hand, if you had a reasonably clean atmosphere in the growing environment, a stronger field could possibly harvest all the spores in the terrarium.


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Re: Electrostatic & live collection of spores [Re: Baby_Hitler]
    #7987103 - 02/06/08 02:53 PM (15 years, 11 months ago)

So do you have any ideas on what you would use? Could you maybe just pass a weak current through it. Maybe a 9v hooked up to a piece of foil? I just inoculated some plates with Ps. antioquensis. It would be nice to have a darker print to work with!


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Our quest for discovery fuels our creativity in all fields, not just science. If we reached the end of the line, the human spirit would shrivel and die. But I don't think we will ever stand still: we shall increase in complexity, if not in depth, and shall always be the center on an expanding horizon of possibilities.
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OfflineAlan RockefellerM
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Re: Electrostatic & live collection of spores [Re: mr_minds_eye]
    #7989215 - 02/06/08 09:19 PM (15 years, 11 months ago)

> Maybe a 9v hooked up to a piece of foil?

I don't think 9 volts would create much electrostatic potential.

A high voltage low current DC source would be best, but those are not all that common. A flash unit might give 340 VDC, but that doesn't sound like much either. Perhaps a neon transformer and a high voltage diode from a microwave oven would give the desired effect, but that sounds really dangerous!


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OfflineD4NK
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Re: Electrostatic & live collection of spores [Re: Alan Rockefeller]
    #7995852 - 02/08/08 11:19 AM (15 years, 11 months ago)
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I believe this might be a good low cost solution.


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OfflineBaby_Hitler
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Re: Electrostatic & live collection of spores [Re: Alan Rockefeller]
    #8000361 - 02/09/08 02:20 PM (15 years, 11 months ago)

I was thinking of using one of those ionic breeze plug-ins.

http://www.sharperimage.com/us/en/catalog/product/sku__SI717GRY


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Re: Electrostatic & live collection of spores [Re: Baby_Hitler]
    #8004024 - 02/10/08 09:51 AM (15 years, 11 months ago)

wild idea! very creative!


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Offlinecosmoline
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Re: Electrostatic & live collection of spores [Re: LoWgRoW]
    #8005151 - 02/10/08 03:50 PM (15 years, 11 months ago)

The fact that everything is going to be moist will fuck up your electrostatic field. Its real interesting though, maybe you could run air from your terrarium through 2 certain sized filters to collect pretty much only spores and then and into an ionic breeze, then just scrape the spores off the collector. Make sure to get one without UV.


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Re: Electrostatic & live collection of spores [Re: Alan Rockefeller]
    #8015762 - 02/12/08 11:45 PM (15 years, 11 months ago)

Quote:

Alan Rockefeller said:
> Maybe a 9v hooked up to a piece of foil?

I don't think 9 volts would create much electrostatic potential.

A high voltage low current DC source would be best, but those are not all that common. A flash unit might give 340 VDC, but that doesn't sound like much either. Perhaps a neon transformer and a high voltage diode from a microwave oven would give the desired effect, but that sounds really dangerous!




I wasn't suggesting that it would create static. I just thought that maybe the current would give the spores enough of a charge to achieve the same result. Obviously you guys don't seem to think so. I was just curious about the actual application.


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Our quest for discovery fuels our creativity in all fields, not just science. If we reached the end of the line, the human spirit would shrivel and die. But I don't think we will ever stand still: we shall increase in complexity, if not in depth, and shall always be the center on an expanding horizon of possibilities.
-Stephen Hawking


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Invisiblefastfred
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Re: Electrostatic & live collection of spores [Re: Baby_Hitler]
    #8016233 - 02/13/08 01:54 AM (15 years, 11 months ago)

Quote:

Baby_Hitler said:
I was thinking of using one of those ionic breeze plug-ins.




Those pump out negative ions. You'd need a positively charged collector plate to do what you're talking about as I believe that spores have a negative charge on the outside.


-FF


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OfflineBaby_Hitler
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Re: Electrostatic & live collection of spores [Re: fastfred]
    #8032996 - 02/16/08 10:23 PM (15 years, 11 months ago)

Well, apparently, similar items exist.

http://apsjournals.apsnet.org/doi/abs/10.1094/PHYTO-96-0967?cookieSet=1&journalCode=phyto

A New Spore Precipitator with Polarized Dielectric Insulators for Physical Control of Tomato Powdery Mildew

In an attempt to physically protect greenhouse tomato plants from the powdery mildew fungus Oidium neolycopersici, we developed a new electrostatic spore precipitator in which a copper wire conductor is linked to an electrostatic generator and covered with a transparent acrylic cylinder (insulator). The conductor was negatively charged by the generator, and the electrostatic field created by the conductor was used to dielectrically polarize the insulator cylinder. The dielectrically polarized cylinder also produced an electrostatic force without a spark discharge. This force was directly proportional to the potential applied to the conductor and was used to attract conidia of the pathogen. The efficacy of this spore precipitator in protecting hydroponically cultured tomato plants from powdery mildew was evaluated in the greenhouse. The hydroponic culture troughs were covered with a cubic frame installed with the spore precipitator, and the disease progress on precipitator-guarded and unguarded seedlings was traced after the conidia were disseminated mechanically from inoculum on tomato plants. Seedlings in the guarded troughs remained uninfected during the entire experiment, in spite of rapid spread of the disease to all leaves of the unguarded seedlings.


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OfflineD4NK
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Re: Electrostatic & live collection of spores [Re: Baby_Hitler]
    #8034250 - 02/17/08 10:54 AM (15 years, 11 months ago)

What exactly is an electrostatic generator? What makes it different than a high voltage/low current source? What kind of voltages would we need to generate for something like this?

Interesting find baby_hitler.


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