scholarly journals Quantum Dots in Biomedical Research

Author(s):  
Adriana Fontes ◽  
Rafael Bezerra de Lira ◽  
Maria Aparecida Barreto Lopes Seabra ◽  
Thiago Gomes da Silva ◽  
Antnio Gomes de Castro Neto ◽  
...  
2006 ◽  
Vol 18 (15) ◽  
pp. 1953-1964 ◽  
Author(s):  
J. M. Klostranec ◽  
W. C. W. Chan

Author(s):  
Nikodem Tomczak ◽  
Dominik Jańczewski ◽  
Denis Dorokhin ◽  
Ming-Yong Han ◽  
G. Julius Vancso

2018 ◽  
Vol 42 (23) ◽  
pp. 18533-18540 ◽  
Author(s):  
Hongru Zu ◽  
Yanxian Guo ◽  
Haiyao Yang ◽  
Di Huang ◽  
Zhiming Liu ◽  
...  

Oxygen deficient molybdenum oxide (MoO3−x) spurred intense scientific interest in biomedical research owing to the strong localized surface plasmon resonance (LSPR) effect in NIR region.


Author(s):  
ShuQi Wang ◽  
Matin Esfahani ◽  
Dusan Sarenac ◽  
Bettina Cheung ◽  
Aishwarya Vasudevan ◽  
...  

Author(s):  
T. L. Hayes

Biomedical applications of the scanning electron microscope (SEM) have increased in number quite rapidly over the last several years. Studies have been made of cells, whole mount tissue, sectioned tissue, particles, human chromosomes, microorganisms, dental enamel and skeletal material. Many of the advantages of using this instrument for such investigations come from its ability to produce images that are high in information content. Information about the chemical make-up of the specimen, its electrical properties and its three dimensional architecture all may be represented in such images. Since the biological system is distinctive in its chemistry and often spatially scaled to the resolving power of the SEM, these images are particularly useful in biomedical research.In any form of microscopy there are two parameters that together determine the usefulness of the image. One parameter is the size of the volume being studied or resolving power of the instrument and the other is the amount of information about this volume that is displayed in the image. Both parameters are important in describing the performance of a microscope. The light microscope image, for example, is rich in information content (chemical, spatial, living specimen, etc.) but is very limited in resolving power.


Author(s):  
R. W. Cole ◽  
J. C. Kim

In recent years, non-human primates have become indispensable as experimental animals in many fields of biomedical research. Pharmaceutical and related industries alone use about 2000,000 primates a year. Respiratory mite infestations in lungs of old world monkeys are of particular concern because the resulting tissue damage can directly effect experimental results, especially in those studies involving the cardiopulmonary system. There has been increasing documentation of primate parasitology in the past twenty years.


Author(s):  
M.J. Kim ◽  
L.C. Liu ◽  
S.H. Risbud ◽  
R.W. Carpenter

When the size of a semiconductor is reduced by an appropriate materials processing technique to a dimension less than about twice the radius of an exciton in the bulk crystal, the band like structure of the semiconductor gives way to discrete molecular orbital electronic states. Clusters of semiconductors in a size regime lower than 2R {where R is the exciton Bohr radius; e.g. 3 nm for CdS and 7.3 nm for CdTe) are called Quantum Dots (QD) because they confine optically excited electron- hole pairs (excitons) in all three spatial dimensions. Structures based on QD are of great interest because of fast response times and non-linearity in optical switching applications.In this paper we report the first HREM analysis of the size and structure of CdTe and CdS QD formed by precipitation from a modified borosilicate glass matrix. The glass melts were quenched by pouring on brass plates, and then annealed to relieve internal stresses. QD precipitate particles were formed during subsequent "striking" heat treatments above the glass crystallization temperature, which was determined by differential thermal analysis.


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