A1258568668QNYKE

1
AULA 7 PONTOS QUANTICOS(Quantum Dots) SINTESE E
APLICAÇÃO
Prof. Dr. Nelson Durán IQ-UNICAMP CURSO
QF-435- SEGUNDO SEMENTRE 2008 NANOMATERIAIS
2
(No Transcript)
3
(No Transcript)
4
(No Transcript)
5
UM EXEMPLO DA DEPENDENCIA DO TAMANHO
6
NANOPARTICULAS METALICAS -------------------------
--------------------------------------------------
-----------------------
7
(No Transcript)
8
(No Transcript)
9
(No Transcript)
10
Chiral highly luminescent CdS quantum dots. M.P.
Moloney, Y.K. Gunko and John M. Kell. Chem.
Commun., 2007, 39003902
11
CD monitoring (A) L-Penicillamine pH 11 (B)
after addition Cd salt (C) Afrer thioacetamide
and (D) after microwave treatment
12
In conclusion, it was prepared strongly emitting
chiral D-Pen and L-Pen capped CdS QDs. Using CD
spectroscopy and have shown that they are
optically active and possess almost identical
mirror images of one another in the range of
200390 nm. Its believe that these QDs could find
important applications, including their use as
fluorescent chemical and biochemical chirality
sensors and molecular recognition nanodevices. In
addition they might have potential for some
biomedical uses. For example, it is known that
certain proteins and drugs only show activity to
one enantiomer,(e.g. the transactivator protein
of type-1 human immunodeficiency virus shows a
preference for D- over L-penicillamine).
13
a,b, Quantum dots having different molecules for
target-specific interaction, and, attached to the
surface, paramagnetic lipids the molecules are
shown attached to part of the dot for clarity,
but extend over the whole surface) and chelators
for nuclear-spin labelling. c, Based on the
description the silica sphere has QDs and
paramagnetic nanoparticles inside and
target-specific groups attached to the outside.
d, The structure of a multimodal QD probe, based
on silica-shelled single-QD micelles.
Rumiana Bakalova, Zhivko Zhelev, Ichio Aoki
Iwao Kanno Nature Photonics 1, 487 - 489 (2007)
14
In Vivo Imaging of Quantum Dots Encapsulated in
Phospholipid Micelles B. Dubertret, P. Skourides,
D.J. Norris, V. Noireaux, A.H. Brivanlou, A.
Libchaber. SCIENCE 298, 1759 (2002)
15
(No Transcript)
16
(No Transcript)
17
(No Transcript)
18
These results indicate that micelle-encapsulated
QDs fulfill the promise of fluorescent
semiconductor nanocrystals for both in vitro and
in vivo studies. Compared to other systems,they
simultaneously provide efficient fluorescence, a
great reduction in photobleaching, colloidal
stability in a variety of bioenvironments, and
low nonspecific adsorption.
19
(No Transcript)
20
(No Transcript)
21
(No Transcript)
22
(No Transcript)
23
(No Transcript)
24
(No Transcript)
25
(No Transcript)
26
(No Transcript)
27
(No Transcript)
28
(No Transcript)
29
(No Transcript)
30
(No Transcript)
31
(No Transcript)
32
(No Transcript)
33
(No Transcript)
34
(No Transcript)
35
(No Transcript)
36
(No Transcript)
37
(No Transcript)
38
(No Transcript)
39
(No Transcript)
40
(No Transcript)
41
(No Transcript)
42
(No Transcript)
43
(No Transcript)
44
(No Transcript)
45
(No Transcript)
46
(No Transcript)
47
(No Transcript)
48
(No Transcript)
49
(No Transcript)
50
(No Transcript)
51
(No Transcript)
52
(No Transcript)
53
(No Transcript)
54
(No Transcript)
55
(No Transcript)
56
(No Transcript)
57
(No Transcript)
58
(No Transcript)
59
(No Transcript)
60
FLUORESCENCE RESONANCE ENERGY TRANSFER (FRET)
(recompensa)
Nanoscale Biosensors Based on Luminescent Quantum
Dots.H. Mattoussi and E.R. Goldman http//www.nrl.
navy.mil/nanoscience/files/nanooptics_poster2.pdf
61
(No Transcript)
62
(No Transcript)
63
(No Transcript)
64
DESIGN OF QD NANOSCALE TNT SENSOR BASED ON
FLUORESCENCE RESONANCE ENERGY TRANSFER (FRET)
65
(No Transcript)
66
(No Transcript)
67
(No Transcript)
68
(No Transcript)
69
(No Transcript)
70
http//e-fisica.fc.up.pt/2006/Actividades/Palestra
s/nanomateriais.pdf
Porto , FCUP-INESC- 2006-Portugal
71
(No Transcript)
72
(No Transcript)
73
(No Transcript)
74
(No Transcript)
75
(No Transcript)
76
(No Transcript)
77
(No Transcript)
78
(No Transcript)
79
(No Transcript)
80
(No Transcript)
81
(No Transcript)
82
(No Transcript)
83
(No Transcript)
84
(No Transcript)
85
(No Transcript)
86
(No Transcript)
87
(No Transcript)
88
(No Transcript)
89
(No Transcript)
90
(No Transcript)
91
(No Transcript)
92
(No Transcript)
93
(No Transcript)
94
(No Transcript)
95
(No Transcript)
96
(No Transcript)
97
(No Transcript)
98
(No Transcript)
99
(No Transcript)
100
(No Transcript)
101
(No Transcript)
102
(No Transcript)
103
(No Transcript)
104
(No Transcript)
105
(No Transcript)
106
(No Transcript)
107
(No Transcript)
108
(No Transcript)
109
(No Transcript)
110
(No Transcript)
111
(No Transcript)
112
(No Transcript)
113
(No Transcript)
114
(No Transcript)
115
(No Transcript)
116
(No Transcript)
117
(No Transcript)
118
(No Transcript)