由买买提看人间百态

topics

全部话题 - 话题: nanoparticle
首页 上页 1 2 3 4 5 6 7 8 9 10 下页 末页 (共10页)
M*********v
发帖数: 2
1
来自主题: Chemistry版 - 新人求助,关于方向选择
新人求助~我是一个一年级化学研究生,在Bay Area一个还算可以的学校,现在有两个
方向不知如何选择,请各位大牛指教。
第一个方向是关于polymer-nanoparticle composite。主要做的是Polymer引导的
nanoparticle的组装,以及电学光学性质的研究,应该可以学到coating, annealing,
AFM, TEM, XRD等等,应该也会用到polymer的合成。我个人是对polymer非常感兴趣,
但是导师可能不是特别容易沟通,很坚持自己的意见,相处的话要很有技巧。发文章的
话一般是2-4篇nanoscale-AM不等的文章,如果发的文章不错,导师也很满意,应该可
以去做大公司例如Dow做R&D,继续做polymer(目前还是想要做R&D)。如果说文章不太
好,应该只能去做process engineer。
第二个方向是Conductive oxidants,例如SnO2,跟一个EE的教授,人不错。主要做的是
Oxidants Thin Film Transistors。从无机solgel的合成,到器件的全部加工(roll to
roll pr... 阅读全帖
M*********v
发帖数: 2
2
来自主题: Chemistry版 - 新人求助,关于方向选择
新人求助~我是一个一年级化学研究生,在Bay Area一个还算可以的学校,现在有两个
方向不知如何选择,请各位大牛指教。
第一个方向是关于polymer-nanoparticle composite。主要做的是Polymer引导的
nanoparticle的组装,以及电学光学性质的研究,应该可以学到coating, annealing,
AFM, TEM, XRD等等,应该也会用到polymer的合成。我个人是对polymer非常感兴趣,
但是导师可能不是特别容易沟通,很坚持自己的意见,相处的话要很有技巧。发文章的
话一般是2-4篇nanoscale-AM不等的文章,如果发的文章不错,导师也很满意,应该可
以去做大公司例如Dow做R&D,继续做polymer(目前还是想要做R&D)。如果说文章不太
好,应该只能去做process engineer。
第二个方向是Conductive oxidants,例如SnO2,跟一个EE的教授,人不错。主要做的是
Oxidants Thin Film Transistors。从无机solgel的合成,到器件的全部加工(roll to
roll pr... 阅读全帖
v****n
发帖数: 362
3
来自主题: Chemistry版 - Senior Scientist@National Cancer Institute
The Senior Scientist will provide domain knowledge in computational
biophysics and biochemistry and software development including: x-ray and
NMR based structure determination methods for protein, virus, and
nanoparticle structures, protein and nanoparticle model generation and
assessment, and computation of structure-based properties; Analyze and
understand the scientific requirements to support structural studies and
participate in technology development projects; Participate in NCI and ABCC
s... 阅读全帖
a*********0
发帖数: 268
4
来自主题: Chemistry版 - 有偿求审稿
今年开始就一直在努力的找审稿的机会,给很多杂志的主编副主编发过邮件要审稿。大
部分都有回复说把我放在reviewer list了。可是好几个月过去了,到现在为止一片审
稿都没有收到。老板也找过了要代为审稿,现在为止也没有信。 绿卡LD指望不上,就
压到我的肩上了。想年底试一试。关键就卡在审稿上了。现在为了审稿都有些
desperate了。真要成绝望的主妇了。所以,有偿求审稿。可以私信谈报酬。 我主要做
纳米邻域以及生物方面的应用还有蛋白质组学和代谢组学方面的。发过nanoletters和
analytical chemistry档次的文章。 具体研究领域如下:Nanoparticles synthesis,
characterization, modification, and applications in biosensor, food science,
and environmental safety. Plasmonic nanoparticle coupling and optical
properties study at single particle level. Pr... 阅读全帖
q****i
发帖数: 6923
5
来自主题: Chemistry版 - paper help bao zi thanks
http://pubs.acs.org/doi/abs/10.1021/jp909931z
Tunable Assembly of Organosilica Hollow Nanospheres
Jian Liu, Shiyang Bai, Hua Zhong, Can Li and Qihua Yang
J. Phys. Chem. C, 2010, 114 (2), pp 953–961
http://pubs.acs.org/doi/abs/10.1021/acs.langmuir.5b04284
Synthesis of Xylylene-Bridged Periodic Mesoporous Organosilicas and Related
Hollow Spherical Nanoparticles
Amanpreet S. Manchanda and Michal Kruk
Langmuir, 2016, 32 (3), pp 900–908
http://pubs.acs.org/doi/abs/10.1021/la063761%2B
Surfactant Templ... 阅读全帖
n*******u
发帖数: 343
6
【 以下文字转载自 Physics 讨论区 】
发信人: nanshanmu (爰有嘉鱼), 信区: Physics
标 题: Postdoc/PhD Positions in Biophysics and Biofunctional Photonics
发信站: BBS 未名空间站 (Tue Nov 9 22:03:52 2010, 美东)
朋友刚刚去德国Max-Plank研究所做PI, 正在招人,如果对生物物理,生物传感器,光
学器件等感兴趣可以与他联系,生物,物理和工程背景的应该都可以。具体信息见下(http://mpl.mpg.de/mpf/php/allgemein/positions_vollmer.pdf)。他原先的主页在: http://www.rowland.harvard.edu/rjf/vollmer/index.php
________________________________________
PhD & Postdoctoral Positions
MAX PLANCK INSTITUTE FOR THE SCIENCE OF LIGHT
Erlan... 阅读全帖

发帖数: 1
7
小弟是刚毕业的硕士学生。在实验室主要是做Graphene solar cell的,有两年的实验
室经验,已经thesis答辩完,马上准备发paper。最近找工作找的快崩溃了,求相关的
公司的前辈,帮忙内推。
贴上我的工作经历。
• At UIC, my thesis research focus is to develop transfer-free
graphene-on-silicon heterojunction solar cells and plasmonics enhancement of
photo-conversion efficiency and received 1.5% PCE
• Tested and optimized critical parameters to solve graphene
quality problem via Raman, XPS, FESEM
• Monitored the parameters (pressure, temperature, precursor gas
flow ... 阅读全帖
H***F
发帖数: 2501
8
刷题

小弟是刚毕业的硕士学生。在实验室主要是做Graphene solar cell的,有两年的实验
室经验,已经thesis答辩完,马上准备发paper。最近找工作找的快崩溃了,求相关的
公司的前辈,帮忙内推。
贴上我的工作经历。
• At UIC, my thesis research focus is to develop transfer-free
graphene-on-silicon heterojunction solar cells and plasmonics enhancement of
photo-conversion efficiency and received 1.5% PCE
• Tested and optimized critical parameters to solve graphene
quality problem via Raman, XPS, FESEM
• Monitored the parameters (pressure, temperature, precursor gas
f... 阅读全帖
c*s
发帖数: 2145
9
来自主题: Macromolecules版 - Re: 推荐一篇文章。
it is very hot and interseting, and there are differet bottom-up
types with dimensions from nano to mm ranges.
and bulding blocks can be molecules, nanoparticles, colloidals.
As I think, the core-shell particles can be regarded as the prime bottom-up
structure: the coated nanoparticles as bottom and larger core as up scales.
In addition, the idea of bottom-up is closely related to the topic of
self-assembly, that is: to form periodical or ordered structure based on the
physical (electrostatic
a***n
发帖数: 578
10
ft. is it not nanoparticle? nanoparticle <> ultrafine powder?
a***n
发帖数: 578
11
来自主题: Macromolecules版 - [转载] Possible to use polymer as stabilizer?
【 以下文字转载自 Chemistry 讨论区,原文如下 】
发信人: argon (argon), 信区: Chemistry
标 题: Possible to use polymer as stabilizer?
发信站: Unknown Space (Fri Aug 15 14:01:38 2003) WWW-POST
as stablilizer of nanoparticles? Thanks a lot.
If it is possible, can we make nanoparticle doped polymers?
CDS... :-)
c*w
发帖数: 50
12
来自主题: Macromolecules版 - Questions:negatively charged nano-colloi

polylactide nanoparticles (-300 nm), -40 mv
polymethyl acrylate nanoparticles
..........
c*w
发帖数: 50
13
来自主题: Macromolecules版 - Questions:negatively charged nano-colloi
【: hehe,the surface charge is determined by yhr initiator used, but not by
the
Different. you mentioned the zeta potential is determined by intiator,because
the initiator is not removed. for example, commercial PS nanoparticles (-90
nm) show zeta potential of about -54 mv because the particles are coated by
sulfate to stabilize. if the sulfate was removed by manufacturee's
instructions, nearly zero.
In addition, PMMA nanoparticles are normally prepared by polymerization.
others, polylacide etc
b**s
发帖数: 589
14
来自主题: Macromolecules版 - ###Re: Is there good method to let
"Nanoparticles with gold or silica cores are more likely to be used for
real in vivo applications"
Are you serious? The non-degradable nanoparticles are extremely dangerous,
it can pass through many type of tissue membranes and blood vessel. Also it
may be stealthy to the phagocytosis. Just imagine them circulate and enter
your brain...

able
want
may
d****i
发帖数: 360
15
来自主题: Macromolecules版 - News!
Abstract (Article Summary)
A 12-month study reveals that many products that incorporate nanoparticles,
including computer chips and self-cleaning windows, are more toxic and can
penetrate cells more readily. Researchers point out that these nanoparticles,
which have many potential uses such as in friction-reducing oil additives and
electronic displays, should be tested and regulated as new chemicals under
existing UK and EU legislation.
c*s
发帖数: 2145
16
来自主题: Macromolecules版 - nanopaticle有多少种制备方法?
this is a very broad area concerning the synthetic method,types of polymer,
application and so on.
for the purpose of synthesis of inorganic nanoparticles, diverse polymer
species have been employed as template. The template works as either structure
directing agents for the growth of nanostructure with special shape, or
protecting agents for nanoparticles with good size/size distribution.
Templates widely used so far include dendrimers, block copolymers and special
ones such as DNA.
for develop
d****i
发帖数: 360
17
来自主题: Macromolecules版 - nanopaticle有多少种制备方法?
Currently, the problem is where this kind of thing can be used. I am combining
some Fe or Fe/Ni nanoparticles with some polyner as catalyst and reductant for
some reaction. Some guys use this for nonlinear optical device. I think the
most promising maybe is the hybrid organic solar cell. They combine some
semi-conductor nanoparticles with some conducting polymer to convert solar
energy to electricity. the particle shape, size, and the properties of the
conducting polymer also can impact the perf
c*s
发帖数: 2145
18
来自主题: Macromolecules版 - nanopaticle有多少种制备方法?
sounds good
some questions for you
what media do these nanoparticles exist in, water or organic? how about the
nanoaprticles size? how to avoid the oxidation of these nanoparticles? and
what reaction it is used for catralytic purpose?
by the way, for nonlinear optical properties, metal is good? I suspect since
its large absorption crossection, thus lower its figure of merit.
as for quantum dot in conducting polymer, how is the stability and quantum
yield?

combining
for
到:
combine
high
w********h
发帖数: 12367
19
来自主题: Macromolecules版 - NanoTinkertoys may improve cancer therap
http://www.umich.edu/~urecord/0405/Jan24_05/05.shtml
Research
Nano 'Tinkertoys' may improve cancer therapy
By Karl Leif Bates
News Service
U-M researchers have developed a faster, more efficient way to produce a wide
variety of nanoparticle drug delivery systems, using DNA molecules to bind the
particles together.
A nanoparticle assembly with folate attached on one end and a fluorescent
protein on the other is held together by complementary strands of DNA. It
selectively targets cancer cells and
s****e
发帖数: 2934
20
来自主题: Macromolecules版 - 我想大家在particle这点上
多谢了,nanoletter的文章我读了,很喜欢,但还没有看所有cite的文章。 cite20做的
东西和我的idea很相似。你说的有人做硅球表面修饰后交连的工作,他们预测define的程
度和表面官能团的密度有关,这篇文章在nanoletter的cite的文献里?还没看见。
大概在95年左右就有人用block copolymer合成nanoparticle了,size control应该是不
成问题的。具体资料可见Judy Riffle 在NSF的funding和用block copolymer和
nanoparticle做关键词找的文章。



<1
r******0
发帖数: 2753
21
来自主题: Macromolecules版 - subnano SAM
Does anybody notice Francesco Stellacci's (MIT) work? SAM on nanoparticles and
atomic level pattern formed. Amazing!
Sigh, nano fever is still there and now even subnano is coming up.
Spontaneous assembly of sub-nanometre ordered domains in the ligand shell of monolayer protected nanoparticles," Jackson, A. M.; Myerson, J. W.; Stellacci, F., Nature Materials, 2004, 3, 330.
w********h
发帖数: 12367
22
来自主题: Macromolecules版 - 昨天参加了个workshop....
关于nanotechnology和biomedicine的。。。
大部分人在讲nanoparticle怎么怎么样,
大家都比较清楚了,我就不说了;
还有些人讲nano surface怎么怎么样,
这个大家也比较清楚,我也不说什么了;
还有人用self-assembled polymer-DNA nanoparticle做gene delivery,
这个还可以,
我是替老板出场的,讲得基本上和nano没关系,
即便有一部分用到,但也不是重点,
不过觉得如今生物就是重点阿////为啥生物版上这么多人哀号?
有时候觉得有些研究就是雕虫小技阿,
比如做bone regeneration,
其实有很多研究在bone morphogenetic protein(BMP)被发现之后就没有任何意义了,
因为一丁点BMP起到的作用比那些千挑万选得到的一点效果不知道大多少了,
而且非常reliable......
sigh....未来,是生物的,我们为了有口饭吃,要补生物的课,
别告诉我没提前说。
s****e
发帖数: 2934
23
来自主题: Macromolecules版 - [合集] 昨天参加了个workshop....
☆─────────────────────────────────────☆
wonderlich (左岸,遁去) 于 (Sat Nov 11 14:32:01 2006) 提到:
关于nanotechnology和biomedicine的。。。
大部分人在讲nanoparticle怎么怎么样,
大家都比较清楚了,我就不说了;
还有些人讲nano surface怎么怎么样,
这个大家也比较清楚,我也不说什么了;
还有人用self-assembled polymer-DNA nanoparticle做gene delivery,
这个还可以,
我是替老板出场的,讲得基本上和nano没关系,
即便有一部分用到,但也不是重点,
不过觉得如今生物就是重点阿////为啥生物版上这么多人哀号?
有时候觉得有些研究就是雕虫小技阿,
比如做bone regeneration,
其实有很多研究在bone morphogenetic protein(BMP)被发现之后就没有任何意义了,
因为一丁点BMP起到的作用比那些千挑万选得到的一点效果不知道大多少了,
而且非常reliable......
J***2
发帖数: 444
24
这个老板我认识,大家看看这些文章
1.A multistep oriented attachment kinetics: Coarsening of ZnS nanoparticle
in concentrated NaOH....JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 128 (39):
12981-12987 OCT 4 2006
2.A Thermodynamically Stable Nanophase Material...JOURNAL OF THE AMERICAN
CHEMICAL SOCIETY 128 (18): 6126-6131 MAY 10 2006
3.Surface chemistry controls crystallinity of ZnS nanoparticles ...NANO
LETTERS 6 (4): 605-610 APR 2006
m******i
发帖数: 834
25
Consumer Report's first nanotechnology test
【纳米科技世界快讯】Consumer Report, an independent nonprofit organization
that tests consumer products, has been testing sunscreens for its July issue
. Of the eight products tested for nanoparticles, all contained them, but
the tests found no correlation between their presence and sun protection.
This is the first time Consumer Report has been testing products containing
nanotechnology.
Nanoparticles of zinc oxide or titanium dioxide are used in sunscreens
bec
m******i
发帖数: 834
26
利用纳米管进行肿瘤放疗的新技术,Nanotubes Enable New Approach to Cancer
Radiotherapy
【纳米科技世界快讯】放射治疗是目前肿瘤治疗的只要手段之一。它的缺点是在杀死肿
瘤细胞的同时也将正常细胞也杀死了。给病人带来不少痛苦和副作用,同时也降低了治
疗的效果。利用碳纳米管携带放射核直接到达肿瘤细胞器,使之放射线直接杀死肿瘤细
胞,明显减少对正常细胞的危害。这种技术对癌症患者的治疗具有重大意义。
Radioactive elements, or radionuclides, are well-established anticancer
agents whose main limitation is that they kill healthy cells almost as
easily as they do tumors. But because nanoparticles can be targeted to
tumors, researchers have seized on the idea of using nanoparticle
S*****n
发帖数: 6055
27
直接用XRD的布拉格公式算,在这个size自然是没有用的
但是通常nanoparticle也不会给出很好的衍射峰,因为毕竟size distribution不小
所以用谢勒公式大概估算一下就好了
当然,只适用于单金属的情况,如果是bimetallic nanoparticle,就不能用了
chemisorption就是对一种特定的金属用一种特定的气体来做吸附。比如Pt-H2,Ni-CO
等,我们认为金属跟气体的结合是很牢固的,而且是stoichiometric的。在充分吸附之
后,用泵抽走物理吸附的气体,剩下的吸附在金属表面的气体,我们通常认为是通过化
学键跟金属结合的,所以可以根据吸附的气体的量,来计算表面上原子有多少。然后根
据表面原子数跟总原子数的比值,可以估算particle的大小。
EXAFS可以给出金属的平均配位数,跟bulk金属的配位数相比较,也可以估计particle
的大小。
c****n
发帖数: 271
28
来自主题: NanoST版 - 问个发paper作者的事情
我们lab和另一个lab合作
我合成了一种nanoparticle
别的lab测试
现在发现nanoparticle有一定的effect想搞点data写论文
想问问怎么排作者的顺序
哪边的学生排第一
哪边的老板排通讯作者
大家指点一下
感谢
g***y
发帖数: 4784
29
来自主题: NanoST版 - 问个发paper作者的事情
谁写谁第一

我们lab和另一个lab合作
我合成了一种nanoparticle
别的lab测试
现在发现nanoparticle有一定的effect想搞点data写论文
想问问怎么排作者的顺序
哪边的学生排第一
哪边的老板排通讯作者
大家指点一下
感谢
p********e
发帖数: 2
30
来自主题: NanoST版 - Post Doc Position Available at UCSB.
One post-doc position is available in the Center for Polymers and Organic
Solids at UCSB. The research will be focused on the synthesis of silver
nanoparticle dimer and its applications for bio-detections. This work will
be
closely collaborated with Professor Martin Moskovits's group.
The perspective candidate needs to be experienced with the preparation of
nanoparticles and the application of surface enhanced Raman spectroscopy for
DNA and protein detections.
If you are interested in this posit
p********o
发帖数: 312
31
good
You can see this paper from Yi Cui's group.
http://pubs.acs.org/doi/full/10.1021/nl802886y
Put a monolayer of silica nanoparticles on the surface of a Si wafer as mask
, wet
etch, you can get wire array or cone array.
The diameter is defined by the size of nanoparticles. 50nm is even too large
, hehe.
F**D
发帖数: 6472
32
来自主题: NanoST版 - 为什么会有颜色?
简单地说,颜色是由物体对光的散射产生的,而散射光的波长或频率决定了你看到的颜
色,频率不一样,颜色就不一致。
而nanoparticle的composite, size, geometry, concentration,number决定了散射光的
频率。
对于metal nanoparticles来说,free electrons引起的surface plasomon resonance决
定了散射光的频率,或者说光谱。
你可以看看你们学校这个group的网页:
http://www.ldl.gatech.edu/research.htm
c*******g
发帖数: 1048
33
最近有人跟我说想做一个东西
就是在substrate上弄上一点金或银的nanoparticles
然后在上面再长一层磁性薄膜覆盖住
通过外加的磁场控制磁性材料的某些性质(比如折射率),进而控制金属
nanoparticles surface plasmon resonance的波长
我咋一听这个idea好像比较简单,应该有人已经做过,但是网上google了半天也没找到
有人知道吗?
谢谢
x**a
发帖数: 10
34
【 以下文字转载自 Postdoc 讨论区 】
发信人: xcha (chacha), 信区: Postdoc
标 题: Research Position Available Immediately
关键字: 'postdoc position nanoparticle synthesis composite'
发信站: BBS 未名空间站 (Sat Sep 12 01:49:47 2009, 美东)
Synthesis of Oxide Nanoparticles and Polymer Composites
Department of Materials Science and Eng.
University of California, Los Angeles
A postdoctoral or research associate position is available in UCLA in Prof.
Qibing Pei's grouphttp://www.seas.ucla.edu/ms/faculty1/qibing_pei.html to synthesi
b**********e
发帖数: 531
35
if your backgroud fits well. thanks a lot
Characterization of plasmid DNA location within chitosan/PLGA/pDNA
nanoparticle complexes designed for gene delivery
Abstract
Poly(D,L-lactide-co-glycolide, PLGA)-chitosan nanoparticles are becoming an
increasingly common choice for the delivery of nucleic acids to cells for
various genetic manipulation techniques. These particles are biocompatible,
with tuneable size and surface properties, possessing an overall positive
charge that promotes complex for
C********g
发帖数: 211
36
来自主题: NanoST版 - Paper help!
This is an Italian journal. The authors are Lungu Antoaneta and Lungu Mihai.
Electrohydrodynamic filtration and separation of nanoparticles using
dielectrophoresis. Part I: theoretical considerations review
Analele Universitatii de Vest din Timisoara, Seria Fizice (2007), 51, 72-75
Electrohydrodynamic filtration and separation of nanoparticles using
dielectrophoresis Part II: experimental review
Analele Universitatii de Vest din Timisoara, Seria Fizice (2007), 51, 76-79
I have been waiting two w
h********y
发帖数: 24
37
来自主题: NanoST版 - 求paper,多谢:)
http://pubs.acs.org/doi/pdfplus/10.1021/bk-2008-0996.ch017
Synthesis, Passivation, and Stabilization of Nanoparticles, Nanorods,
and Nanowires by Microwave Irradiation
Chapter 6. Sonochemistry and Other Novel Methods Developed for the
Synthesis of Nanoparticles
http://onlinelibrary.wiley.com/doi/10.1002/352760247X.ch6/summa
Aqueous Microwave Assisted Chemistry: Synthesis and Catalysis
http://pubs.rsc.org/en/Content/Chapter/9781849730990-00176/978-
email:s******[email protected]
many 3x:)
t****1
发帖数: 232
38
来自主题: NanoST版 - Nano有对创业感兴趣的没
我是做nanoparticle表面用polymer修饰的,主要应用在油田,感觉现在是石油公司的
一个研发方向,尤其是在页岩气开采上,nanoparticle可以进入很小的岩石缝隙,利用
聚合物吸附原油,大大增加产量。现在成型的产品并不多,市场前景很大,有兴趣的可
以一起合作。我现在休斯顿。
v****n
发帖数: 362
39
The Senior Scientist will provide domain knowledge in computational
biophysics and biochemistry and software development including: x-ray and
NMR based structure determination methods for protein, virus, and
nanoparticle structures, protein and nanoparticle model generation and
assessment, and computation of structure-based properties; Analyze and
understand the scientific requirements to support structural studies and
participate in technology development projects; Participate in NCI and ABCC
s... 阅读全帖
c********9
发帖数: 65
40
来自主题: Pharmaceutical版 - 有人了解Mark Davis的siRNA么?
他这个first targeted delivery of siRNA based on nanoparticles怎么样了?进到
临床几期了?
另外,Langer大牛那边怎么没听说哪种nanoparticle进入临床了呢?还是我太不了解了
x********g
发帖数: 276
41
本人有机化学出身,懂一些生物,已经做了五年的nanoparticles drug delivery博后了
看到几个只要公司在找nanoparticle formulation scientist, 投了简历,收到过初选
要求补充信息的回复。
估计formulation 有个系统的知识体系吧,不知道我的背景有没有可能胜任
n*******u
发帖数: 343
42
朋友刚刚去德国Max-Plank研究所做PI, 正在招人,如果对生物物理,生物传感器,光
学器件等感兴趣可以与他联系,生物,物理和工程背景的应该都可以。具体信息见下(http://mpl.mpg.de/mpf/php/allgemein/positions_vollmer.pdf)。他原先的主页在: http://www.rowland.harvard.edu/rjf/vollmer/index.php
________________________________________
PhD & Postdoctoral Positions
MAX PLANCK INSTITUTE FOR THE SCIENCE OF LIGHT
Erlangen, Germany
PhD and Postdoctoral Fellow positions in BIOFUNCTIONAL PHOTONICS: inventing,
constructing and using light fields to study biological systems. We are
exploring the... 阅读全帖
s**********8
发帖数: 25265
43
来自主题: MedicalDevice版 - sterilization: 器械灭菌
Sterilization (microbiology)
http://en.wikipedia.org/wiki/Sterilization_(microbiology)
From Wikipedia, the free encyclopediaJump to: navigation, search This
article has multiple issues. Please help improve it or discuss these issues
on the talk page.
It may need reorganization to meet Wikipedia's quality standards. Tagged
since March 2008.
It is in need of attention from an expert on the subject. WikiProject
Microbiology may be able to help recruit one. Tagged since December 2010.
Contents [hide... 阅读全帖
r*******y
发帖数: 1729
44
发现了这么一段,
Chyao created semiconducting nanoparticles that, when exposed to certain
wavelengths of light, generate a highly reactive form of oxygen that proves
deadly to cancer cells. Once injected, the nanoparticles could travel
through the bloodstream or stay localized in tumor sites. Exposure to a
targeted beam of light, like a laser, could catalyze the reaction
specifically where the cancer cells are growing.
This photodynamic therapy, treating superficial skin cancers with light, is
an esta... 阅读全帖
r*******y
发帖数: 1729
45
I know nothing about cancer stuff.My understand is that this nanoparticle
under certain wavelength will release some reactive Oxygen to kill the tumor
... Her task is fabricating this kind of nanoparticle. Is that right?
c*********2
发帖数: 3402
46
http://edu.people.com.cn/GB/227070/17457891.html
人大坠楼教授曹廷炳:化学界天空中划过的一颗流星
2012年03月22日09:12 来源:人民网-教育频道
人民网北京3月22日电 (记者 史雅乔)16日,人大化学系主任曹廷炳从高楼坠下
身亡。据悉,曹廷炳北大博士毕业后,进入哈佛化学系进行博士后研究工作,之后被人
大聘请。同时,他还获得教育部新世纪优秀人才计划支持。在此将其曾经的成就列举一
二,希望以此来表达对逝者的悼念。
据了解,曹廷炳在其专业领域做出了很大的努力,并取得相当显赫的成绩。其研究
领域主要在高分子材料的制备、组装及其功能化; 非传统微纳米图案化技术的开发及
其在生物、化学传感及能源器件上的应用;基于驻极体(Electrets)材料的超分子组
装。他的科研项目主要有主持国家自然科学基金面上项目“在驻极体上构筑有序分子组
装体系”以及“非传统方法制备超精细纳米结构及其应用”,并参与国家自然科学基金
重点项目“基于超精细结构的集成微流芯片检测新方法”,主持教育部新世纪优秀人才
计划项目。在其众多科研成就中,最值一提的还是曹廷... 阅读全帖
c****s
发帖数: 5892
47
大温是需要兴建新的垃圾堆填区还是垃圾焚化炉?大温区域局周六呼吁市民就垃圾处理计划发表意见。
据星岛日报报道,上周五经5小时激辩后,区域局成员投票通过一项草拟计划,并随即展开60天咨询期。当局最后会把修订后的计划书,呈交省环境厅审批。
或让原垃圾场「延寿」25年
大温都会区正要推出新的垃圾处理计划,主因是卡切溪(Cache Creek)现行垃圾堆填区将于2011年爆满,无法再腾出空间堆填垃圾。省政府已经批准一项成本达1亿元的扩建计划,让这个垃圾场「寿命」可延长17至25年,但最终仍须兴建一个新堆填区。
另一问题是,继续使用这个垃圾堆填区,成本将不断飙升。根据区域局研究估计,未来35年的耗费将超过15亿元。
垃圾焚化炉恐污染环境
另外,有建议兴建全新的垃圾焚化炉,然后转化为一种能源。尽管成本要超过4亿元,但倡议者却指出,垃圾焚化炉可以在35年后收回约2,000万元的盈利。
菲沙河谷区域局反对兴建焚化炉,认为所产生灰烬严重影响环境。环保组织则指出,焚化炉的「纳米微粒」(nanoparticles)损害人体呼吸系统厉害。
绿色文化交流俱乐部也呼吁,民众写信阻止兴建更多的垃圾焚化炉。该组织认为,
w*********g
发帖数: 30882
48
笔者对此发表以下看法:
(1)卫生部2007年颁布实施《新资源食品管理办法》有意取消了2002年颁布实施
的《转基因食品卫生管理办法》“第五条 转基因食品的食用安全性和营养质量不得低
于对应的原有食品”这个条款,是退步,而不是进步!这种删除的实质是,进一步顺从
邪恶孟山都为首跨国转基因产业的私利与压力,置中国人民持续安全、健康、生存与繁
衍于不顾!
(2)卫生部2007年颁布实施《新资源食品管理办法》有意取消了2002年颁布实施
的《转基因食品卫生管理办法》“第五条”,但是卫生部《新资源食品管理办法》“第
三条”规定:
第三条 新资源食品应当符合《食品卫生法》及有关法规、规章、标准的规定,对
人体不得产生任何急性、亚急性、慢性或其他潜在性健康危害。
依据该第三条规定,在对于抗草甘膦转基因大豆加工的转基因大豆油,检测出超过
俄罗斯对大豆油草甘膦残留量允许标准与中国卫生部对棉籽油草甘膦残留最高限量2.9-
6倍的草甘膦残留量,已经证实对人类健康,特别对青少年、儿童、婴儿与孕妇及其胎
儿,造成极其严重危害情况下,(1)对人类健康不是形成 “潜在性健康危害”而是... 阅读全帖
l****u
发帖数: 3130
49
来自主题: Military版 - 武汉大学80后美女袁荃教授走红
姓 名: 袁 荃 Yuan _ Quan
出生年月:1982年2月
学历: 博士, 教授
专业方向:分析化学
电 话:
Email:y*********[email protected]
教育与研究经历
2000年9月– 2004年7月:武汉大学化学学士学位
2004年9月– 2009年7月:北京大学无机化学博士学位导师:严纯华院士
2009年9月-2011年12月:佛罗里达大学化学系博士后谭蔚泓教授课题组
2011年12月-现在:武汉大学化学学院教授
代表性成果
1.Quan Yuan, Yun-Fei Zhang, Ruo-Wen Wang, Chao-Lin Du, Emir Yasun, Yan Chen,
and Wei-Hong Tan* “Using Silver Nanowire Antennas to Enhance the
Conversion Efficiency of Photoresponsive DNA Nanomotors” Proc. Natl. Acad.
Sci. U. S. A. 2011, 108, 9331.
2.Quan Yuan, Hao-Hong ... 阅读全帖
l**k
发帖数: 45267
50
来自主题: Military版 - 肘子这次肯定拿了制药公司的钱
已经有nanoparticle药物在临床试验了
首页 上页 1 2 3 4 5 6 7 8 9 10 下页 末页 (共10页)