s********6
发帖数: 21 | 1 No. 1
The electrodissolution of magnetite: Part II. The oxidation of bulk
magnetite
Peter D. Allen, Noel A. Hampson and Geoffrey J. Bignold
Journal of Electroanalytical Chemistry
Volume 111, Issues 2-3, 25 August 1980, Pages 223-233
No. 2
The electrodissolution of magnetite: Part I. The electrochemistry of Fe3O4/C
discs-potentiodynamic experiments
Peter D. Allen, Noel A. Hampson and Geoffrey J. Bignold
Journal of Electroanalytical Chemistry
Volume 99, Issue 3, 8 June 1979, Pages 299-309
Thx~~ |
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r********n
发帖数: 149 | 2 http://pubs.acs.org/doi/abs/10.1021/ja2005708
Three-dimensional colloidal crystals made of
ferromagnetic particles, such as magnetite (Fe3O4), cannot
be synthesized in principle because of the strong attractive
magnetic interaction. However, we discovered colloidal
crystals composed of polyhedral magnetite nanocrystallites
of uniform size in the range of a few hundred nanometers in
the Tagish Lake meteorite. Those colloidal crystals were
formed 4.6 billion years ago and thus are much older than
... 阅读全帖 |
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v********e
发帖数: 1597 | 3 http://www.nature.com/news/long-sought-biological-compass-disco
In the cells of fruit flies, Chinese scientists say that they have found a
biological compass needle: a rod-shaped complex of proteins that can align
with Earth’s weak magnetic field.
The biocompass — whose constituent proteins exist in related forms in other
species, including humans — could explain a long-standing puzzle: how
animals such as birds and insects sense magnetism. It might also become an
invaluable tool for using m... 阅读全帖 |
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v********e
发帖数: 1597 | 4 http://www.nature.com/news/long-sought-biological-compass-discovered-1.18803
In the cells of fruit flies, Chinese scientists say that they have found a
biological compass needle: a rod-shaped complex of proteins that can align
with Earth’s weak magnetic field.
The biocompass — whose constituent proteins exist in related forms in other
species, including humans — could explain a long-standing puzzle: how
animals such as birds and insects sense magnetism. It might also become an
invaluable too... 阅读全帖 |
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s********6
发帖数: 21 | 5 The electrodissolution of magnetite: Part III. Iron nucleation processes on
magnetite electrodes
Peter D. Allena, Geoffrey J. Bignolda and Noel A. Hampsonb
Journal of Electroanalytical Chemistry
Volume 112, Issue 2, 25 September 1980, Pages 239-246
Thanks!!! |
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z*********4
发帖数: 146 | 6 The electrodissolution of magnetite: Part II. The oxidation of bulk
magnetite
Peter D. Allen, Noel A. Hampson and Geoffrey J. Bignold
Journal of Electroanalytical Chemistry
Volume 111, Issues 2-3, 25 August 1980, Pages 223-233
http://www.sendspace.com/file/im0q6u |
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l*******G
发帖数: 1191 | 7 考，如果用钍同位素检验，应该很容易知道是否造假呀。因为60年代原子弹实验，之前
和之后的文物有大不相同的钍同位素比例。
这里有一个例子：http://www.bibleinterp.com/articles/alternative_interpretation.shtml
Uranium/Thorium dating: An additional method that could be potentially
used for age examination of the patina is the isotopic analysis of its
uranium and thorium content (Thompson 1973). The uranium-thorium to helium-
lead method has been previously used to date a small range of minerals,
particularly magnetite (hence relevant for the case in question). The m |
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w**********g
发帖数: 687 | 8 Look at the TEM description and the TEM images. You will see how they made
the data in the following paper.
Efficacy of lytic peptide bound magnetite nanoparticles in destroying breast
cancer cells,
Journal of Nanoscience and Nanotechnology, 4 (3), 245-249, 2004 |
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T*****0
发帖数: 1853 | 10 Key words
Magnetite nanoparticles
X-ray diffraction
Structural, Microscopic and Magnetic Property
背景合适的发站内邮件，附上个人背景和publication list
不合适的就别发了 |
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m*******n
发帖数: 261 | 11 是这个东吗？7系出的牛人太多了。
祝贺孙卫东博士在研究工作中取得重要进展！
岩浆聚敛边缘与铜金矿床存在关系已成为公认的事实，但是其具体的关联还存在
很大的争议。我校91级校友孙卫东博士和同事们在这一领域进行了深入的研究并取得了重
要的进展，相关的论文以孙卫东博士为第一作者发表在最新一期的国际权威学术期刊《
Nature》杂志上。（Release of gold-bearing fluids in convergent margin magmas
prompted by magnetite crystallization， NATURE VOL 431， 21 OCTOBER 2004）
孙卫东博士目前在化学地球动力学、同位素地球化学等领域取得了丰硕的成果
，多篇论文发表在《Nature》、《Earth and Planetary Science Letters》、《The
Journal of Geology》、《 J. metamorphic Geol 》等国际权威的学术期刊上。
孙卫东博士简介：
http://polar |
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g**********y
发帖数: 451 | 12
back
to
He has more than one in Nature. Now he is a rising star.
1. Sun WD, Arculus RJ, Kamenetsky VS, et al.
Release of gold-bearing fluids in convergent margin magmas prompted by
magnetite crystallization
NATURE 431 (7011): 975-978 OCT 21 2004
Times Cited: 1
2. Sun WD, Bennett VC, Kamenetsky VS
The mechanism of Re enrichment in arc magmas: evidence from Lau Basin basaltic
glasses and primitive melt inclusions
EARTH AND PLANETARY SCIENCE LETTERS 222 (1): 101-114 MAY 15 2004
Times Cited: |
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m******n
发帖数: 6673 | 13 因为选车的颜色，发现车的涂色可真不少，有的连听都没有听说过。
就把它们列出来，看看你的车是什么颜色，还有什么颜色你喜欢，下次买车时可以参考
一下。
从网上看来的，前面的数字好像是奔驰车的代码，但其他车的颜色也肯定差不多。
019 designo red* (crimson metallic*) 019合作设计的红色*（深红色金属*）
040 black (schwarz) 040黑色（施瓦茨）
050 white (weiss) 050白（魏斯）
122 pearl grey (perlmattgrau)* 122珍珠灰（perlmattgrau）*
124 arabian grey (arabergrau) 124阿拉伯灰色（arabergrau）
125 pearl grey (perlgrau) 125珍珠灰（perlgrau）
131 pastellweiss 131 pastellweiss
140 silver grey (silbergrau) 140银灰（silbergrau）
143 fern white 143蕨类白
147 arctic white (arctic... 阅读全帖 |
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a*****s
发帖数: 6260 | 14 August 02, 2002
Researchers Publish Latest Results in Continuing Search for Ancient
Martian Life
In the latest study of a 4.5 billion-year-old Martian meteorite,
researchers have presented new evidence confirming that 25 percent of
the magnetic material in the meteorite was produced by ancient
bacteria on Mars. These latest results were published in the journal
Applied and Environmental Microbiology.
The researchers used six physical properties they refer to as the
Magnetite Assay for Biogenicit |
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b**********e
发帖数: 531 | 15 Please let me know if your background fits and you are willing to review the
following paper. Thank you
Application of flow focusing to the break-up of a magnetite suspension
jet for the production of paramagnetic microparticles
Abstract
Paramagnetic particles offer an extensive improvement in the magnetic
separation or purification of a wide variety of protein molecules. Most of
commercial paramagnetic particles are synthesized by laborious and cost
procedures. A straightforward production of p |
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z*********4
发帖数: 146 | 17 http://www.sendspace.com/file/axu1l7
The electrodissolution of magnetite: Part I. The electrochemistry of Fe3O4/C
discs-potentiodynamic experiments
Peter D. Allen, Noel A. Hampson and Geoffrey J. Bignold
Journal of Electroanalytical Chemistry
Volume 99, Issue 3, 8 June 1979, Pages 299-309 |
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p********y
发帖数: 181 | 19 I am developing an alternating magnetic field (AMF) device to induce
hyperthermia in SPION of ~20nm size. The SPION is based on Fe3O4 (magnetite?)
Many papers demonstrated that AMF of 80--150KHz is effective for heating
SPIONs of smaller than 35nm, in tissue.
Many other works, particulaly theory-works, indicated that ~Mhz range should
be more effective for particles smaller than 20nm.
Is there any expert out there who could give me some suggestions for the AMF
frequency needed to maximize the he... 阅读全帖 |
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b**********e
发帖数: 531 | 20 Please let me know if your background fits and you are willing to review the
following paper. Thank you
Application of flow focusing to the break-up of a magnetite suspension
jet for the production of paramagnetic microparticles
Abstract
Paramagnetic particles offer an extensive improvement in the magnetic
separation or purification of a wide variety of protein molecules. Most of
commercial paramagnetic particles are synthesized by laborious and cost
procedures. A straightforward production of p |
|
p********y
发帖数: 181 | 21 I am developing an alternating magnetic field (AMF) device to induce
hyperthermia in SPION of ~20nm size. The SPION is based on Fe3O4 (magnetite?)
Many papers demonstrated that AMF of 80--150KHz is effective for heating
SPIONs of smaller than 35nm, in tissue.
Many other works, particulaly theory-works, indicated that ~Mhz range should
be more effective for particles smaller than 20nm.
Is there any expert out there who could give me some suggestions for the AMF
frequency needed to maximize the he... 阅读全帖 |
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w****a
发帖数: 127 | 22 coated with gold to kill cancer |
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p********y
发帖数: 181 | 23 I am developing an alternating magnetic field (AMF) device to induce
hyperthermia in SPION of ~20nm size. The SPION is based on Fe3O4 (magnetite?)
Many papers demonstrated that AMF of 80--150KHz is effective for heating
SPIONs of smaller than 35nm, in tissue.
Many other works, particulaly theory-works, indicated that ~Mhz range should
be more effective for particles smaller than 20nm.
Is there any expert out there who could give me some suggestions for the AMF
frequency needed to maximize the he... 阅读全帖 |
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w*****d
发帖数: 57 | 24 转华人科学网。http://www.sciencenets.com/thread-1618-1-1.html
谢灿的文章《A magnetic protein biocompass》终于在《Nature Material》上发表了
，首先恭喜一下作者的文章发表。这也意味着，我们首次有机会比对谢灿与张生家的文
章，对两人关于“抢发”文章的争议做出有一个客观评价。
首先，我来总结并点评一下谢灿的文章所描述的研究成果。
总结：
文章回顾了目前已经提出的动物利用磁场定位的机理。第一，光感蛋白Cryptochromes
（Cry）可以在光线刺激下对地磁场产生反应，而缺失这个蛋白的果蝇会失去磁感应的
能力，因此Cry被认为对动物磁感应起重要作用。但是Cry本身不具备磁极性，因此不具
备指南针的功能。第二，由动物体内具有磁性的矿物质所形成“magnetite”被认为是
另一个磁感应的机制，这些磁性矿物质已经在多种动物的器官中被发现，但是有研究指
出这些矿物质与磁感应无关。
基于以上两点，谢灿在文章中提出一个猜想——应该存在一个具有磁性的蛋白，能与
Cry结合，并且具有磁受体的功能；谢灿将这个假设中的... 阅读全帖 |
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a*****s
发帖数: 6260 | 25 August 02, 2002
Researchers Publish Latest Results in Continuing Search for Ancient
Martian Life
In the latest study of a 4.5 billion-year-old Martian meteorite,
researchers have presented new evidence confirming that 25 percent of
the magnetic material in the meteorite was produced by ancient
bacteria on Mars. These latest results were published in the journal
Applied and Environmental Microbiology.
The researchers used six physical properties they refer to as the
Magnetite Assay for Biogenicit |
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