Comments on: Magnetic nanoparticles to cook brain cancer go into trial in patient http://www.foresight.org/nanodot/?p=4809 examining transformative technology Wed, 03 Apr 2013 18:23:47 +0000 hourly 1 http://wordpress.org/?v=3.0.4 By: Magnetic nanoparticles to cook brain cancer go … – Foresight Institute | Brain cancer Stories http://www.foresight.org/nanodot/?p=4809#comment-1093407 Magnetic nanoparticles to cook brain cancer go … – Foresight Institute | Brain cancer Stories Sat, 05 Nov 2011 13:23:21 +0000 http://www.foresight.org/nanodot/?p=4809#comment-1093407 [...] the rest here: Magnetic nanoparticles to cook brain cancer go … – Foresight Institute This entry was posted in brain cancer and tagged called-glioblastoma, giessen, heating-magnetic, [...] [...] the rest here: Magnetic nanoparticles to cook brain cancer go … – Foresight Institute This entry was posted in brain cancer and tagged called-glioblastoma, giessen, heating-magnetic, [...]

]]> By: NanoMan http://www.foresight.org/nanodot/?p=4809#comment-1089677 NanoMan Mon, 17 Oct 2011 22:41:00 +0000 http://www.foresight.org/nanodot/?p=4809#comment-1089677 I was doing some investigation into diamond synthesis and I found this. I was totally amazed. I know we can make diamonds using high pressures, and high temperatures, and now we can do it using high temperatures in chemical vapor deposition, but, this is even greater. Scientists have used ultra sound cavitation processes to produce micro sized diamonds in a liquid medium. This shows that we can definitely synthesize diamond using mechanical force, even though this was already known. Here are the relevant links and information: http://www.sciencedirect.com/science...25963508001374 From the paper: " Graphite-to-diamond transformation induced by ultrasound cavitation A.Kh. Khachatryana, c, S.G. Aloyana, Corresponding Author Contact Information, E-mail The Corresponding Author, P.W. Mayb, R. Sargsyana, V.A. Khachatryana, V.S. Baghdasaryand Purchase a Institute of General and Inorganic Chemistry of Armenian National Academy of Sciences, 10 Argutyan 2 District, 0051, Yerevan, Armenia b School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 ITS, U.K. c Institute of Chemical Physics of Armenian National Academy of Sciences 5/2 Paruir Sevak St., 0044 Yerevan, Armenia d Yerevan Physics Institute 2 Alikhanian Br. St., 0036 Yerevan, Armenia Received 5 September 2007; revised 14 January 2008; Accepted 24 January 2008. Available online 13 February 2008. Abstract Diamond microcrystals have been synthesized using ultrasonic cavitation of a suspension of hexagonal graphite in various organic liquid media, at an average bulk temperature of the liquid up to 120°C and at atmospheric pressure. The yield of diamond is up to 10% by mass. The diamonds were characterized by scanning electron microscopy, X-ray diffraction and laser Raman spectroscopy. Analysis of the crystallite size distribution showed that the diamonds were nearly mono-dispersed, having a size 6 or 9μm ± 0.5μm, with cubic, crystalline morphology." Here is a quote from Wikipedia: Micron-sized diamond crystals can be synthesized from a suspension of graphite in organic liquid at atmospheric pressure and room temperature using ultrasonic cavitation. The diamond yield is about 10% of the initial graphite weight. The estimated cost of diamond produced by this method is comparable to that of the HPHT method; the crystalline perfection of the product is significantly worse for the ultrasonic synthesis. This technique requires relatively simple equipment and procedures, but it has only been reported by two research groups, and has no industrial use as of 2009[update]. Numerous process parameters, such as preparation of the initial graphite powder, the choice of ultrasonic power, synthesis time and the solvent, are not yet optimized, leaving a window for potential improvement of the efficiency and reduction of the cost of the ultrasonic synthesis. And here is another link: http://resources.metapress.com/pdf-p...7&size=largest http://www.springerlink.com/content/fg40t5787h828337/ This is very good news for those who want diamonds to be synthesized. I was doing some investigation into diamond synthesis and I found this. I was totally amazed. I know we can make diamonds using high pressures, and high temperatures, and now we can do it using high temperatures in chemical vapor deposition, but, this is even greater. Scientists have used ultra sound cavitation processes to produce micro sized diamonds in a liquid medium. This shows that we can definitely synthesize diamond using mechanical force, even though this was already known. Here are the relevant links and information:

http://www.sciencedirect.com/science…25963508001374

From the paper:

” Graphite-to-diamond transformation induced by ultrasound cavitation

A.Kh. Khachatryana, c, S.G. Aloyana, Corresponding Author Contact Information, E-mail The Corresponding Author, P.W. Mayb, R. Sargsyana, V.A. Khachatryana, V.S. Baghdasaryand
Purchase
a Institute of General and Inorganic Chemistry of Armenian National Academy of Sciences, 10 Argutyan 2 District, 0051, Yerevan, Armenia
b School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 ITS, U.K.
c Institute of Chemical Physics of Armenian National Academy of Sciences 5/2 Paruir Sevak St., 0044 Yerevan, Armenia
d Yerevan Physics Institute 2 Alikhanian Br. St., 0036 Yerevan, Armenia

Received 5 September 2007; revised 14 January 2008; Accepted 24 January 2008. Available online 13 February 2008.
Abstract

Diamond microcrystals have been synthesized using ultrasonic cavitation of a suspension of hexagonal graphite in various organic liquid media, at an average bulk temperature of the liquid up to 120°C and at atmospheric pressure. The yield of diamond is up to 10% by mass. The diamonds were characterized by scanning electron microscopy, X-ray diffraction and laser Raman spectroscopy. Analysis of the crystallite size distribution showed that the diamonds were nearly mono-dispersed, having a size 6 or 9μm ± 0.5μm, with cubic, crystalline morphology.”

Here is a quote from Wikipedia:

Micron-sized diamond crystals can be synthesized from a suspension of graphite in organic liquid at atmospheric pressure and room temperature using ultrasonic cavitation. The diamond yield is about 10% of the initial graphite weight. The estimated cost of diamond produced by this method is comparable to that of the HPHT method; the crystalline perfection of the product is significantly worse for the ultrasonic synthesis. This technique requires relatively simple equipment and procedures, but it has only been reported by two research groups, and has no industrial use as of 2009[update]. Numerous process parameters, such as preparation of the initial graphite powder, the choice of ultrasonic power, synthesis time and the solvent, are not yet optimized, leaving a window for potential improvement of the efficiency and reduction of the cost of the ultrasonic synthesis.

And here is another link:

http://resources.metapress.com/pdf-p…7&size=largest

http://www.springerlink.com/content/fg40t5787h828337/

This is very good news for those who want diamonds to be synthesized.

]]> By: Frank Randall http://www.foresight.org/nanodot/?p=4809#comment-1089096 Frank Randall Fri, 14 Oct 2011 17:47:23 +0000 http://www.foresight.org/nanodot/?p=4809#comment-1089096 A related procedure injects nanoparticles into the patient. The nanoparticles go to the cancer site and a radio-frequency machine, invented by John Kanzius, zaps them. It has eradicated tumors in small animals, such as rabbits and mice, and is currently being researched at MD Anderson by a team headed by Dr. Steve Curley. The huge advantage to this procedure, if proven ultimately successful with humans, is that the nanoparticles do not have to be injected directly into the tumor; thus, more tumors can be reached. Also, no cancer drugs are used and tumors that have mastesized can, potentially, be reached. This procedure is about 2 yrs. away from being approved. A related procedure injects nanoparticles into the patient. The nanoparticles go to the cancer site and a radio-frequency machine, invented by John Kanzius, zaps them. It has eradicated tumors in small animals, such as rabbits and mice, and is currently being researched at MD Anderson by a team headed by Dr. Steve Curley. The huge advantage to this procedure, if proven ultimately successful with humans, is that the nanoparticles do not have to be injected directly into the tumor; thus, more tumors can be reached. Also, no cancer drugs are used and tumors that have mastesized can, potentially, be reached. This procedure is about 2 yrs. away from being approved.

]]> By: nbic and emerging technology 10/13/2011 « no brave new world http://www.foresight.org/nanodot/?p=4809#comment-1088895 nbic and emerging technology 10/13/2011 « no brave new world Thu, 13 Oct 2011 15:32:57 +0000 http://www.foresight.org/nanodot/?p=4809#comment-1088895 [...] Magnetic nanoparticles to cook brain cancer go into trial in patient [...] [...] Magnetic nanoparticles to cook brain cancer go into trial in patient [...]

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