Cadmium Telluride Quantum Dots

Cadmium Telluride Quantum Dots

Of the II-VI materials, cadmium telluride (CdTe) has received a large amount of
attention, particularly in materials that are fabricated with colloidal synthetic
methods. Quantum dots or nanocrystals are nanoscale semiconductor materials
in ...

Author: John Donegan

Publisher: CRC Press

ISBN: 9789814316095

Category: Science

Page: 248

View: 929

In the last two decades, semiconductor quantum dots—small colloidal nanoparticles—have garnered a great deal of scientific interest because of their unique properties. Among nanomaterials, CdTe holds special technological importance as the only known II–VI material that can form conventional p–n junctions. This makes CdTe very important for the development of novel optoelectronic devices such as light-emitting diodes, solar cells, and lasers. Moreover, the demand for water-compatible light emitters and the most common biological buffers give CdTe quantum dots fields a veritable edge in biolabeling and bioimaging. Cadmium Telluride Quantum Dots: Advances and Applications focuses on CdTe quantum dots and addresses their synthesis, assembly, optical properties, and applications in biology and medicine. It makes for a very informative reading for anyone involved in nanotechnology and will also benefit those scientists who are looking for a comprehensive account on the current state of quantum dot–related research.
Categories: Science

The Anticoagulant Properties of Cadmium Telluride Quantum Dots

The Anticoagulant Properties of Cadmium Telluride Quantum Dots

Abstract: The size‐dependent optical properties of quantum dots (QDs) are frequently exploited for use in medical imaging and labelling applications.

Author:

Publisher:

ISBN: OCLC:1052076459

Category:

Page:

View: 430

Abstract: The size‐dependent optical properties of quantum dots (QDs) are frequently exploited for use in medical imaging and labelling applications. Similarly, presented here, they also elicit profound size‐dependent anticoagulant properties. Cadmium telluride quantum dot (QDs) (3.2nm) were shown to have a dramatic anticoagulant effect centred on around the intrinsic coagulation pathway, compared to their 3.6 nm counterparts. Several clinically relevant diagnostic tests were carried out over a concentration range of the QDs and demonstrated that the 3.2 nm QDs elicited their response on the intrinsic pathway as a whole, yet the activity of the individual intrinsic coagulation factors was not affected. The mechanism appears also to be strongly influenced by the concentration of calcium ions and not cadmium ions leached from the QDs. Static and shear‐based primary haemostasis assays were also carried out, demonstrating a profound anticoagulant effect which was independent of platelets and phospholipids. The data presented here suggest that the physical–chemical properties of the QDs may have a role in the modulation of haemostasis and the coagulation cascade, in a yet not fully understood mechanism. This study has implications for the use of similar QDs as diagnostic or therapeutic tools in vivo, and for the occupational health and safety of those working with such materials. Abstract : Cadmium telluride quantum dots (3.2nm) exhibit a profound anticoagulant response centred on the intrinsic pathway. The mechanism appears also to be strongly influenced by the concentration of calcium ions and not the presence of cadmium ions.
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Ecotoxicological Effect of CdTe Quantum Dots on Eisenia Andrei

Ecotoxicological Effect of CdTe Quantum Dots on Eisenia Andrei

Cadmium tellurium quantum dots -- Eisenia andrei -- Biomarkers -- Bioaccumulation.

Author:

Publisher:

ISBN: OCLC:1222893517

Category: Electronic dissertations

Page: 162

View: 719

Cadmium tellurium quantum dots -- Eisenia andrei -- Biomarkers -- Bioaccumulation.
Categories: Electronic dissertations

Environmental Health Perspectives

Environmental Health Perspectives

Differences in subcellular distribution and toxicity of green and red emitting CdTe
quantum dots . J Mol Med 83 : 377-385 . Lovric J , Cho SJ , Winnik FM ,
Maysinger D. 2005b . Unmodified cadmium telluride quantum dots induce
reactive ...

Author:

Publisher:

ISBN: NYPL:33433116726864

Category: Electronic journals

Page:

View: 617

Categories: Electronic journals

Nanobiophotonics and Biomedical Applications

Nanobiophotonics and Biomedical Applications

Cadmium telluride ( CdTe ) quantum dots , with a diameter of approximately 3nm
, were synthesized then rendered water ... CdTe quantum dots may be imaged
and excited at nearinfrared wavelengths , depending on the size of the dot . CdTe
 ...

Author:

Publisher:

ISBN: UOM:39015058300859

Category: Biophotometry

Page:

View: 261

Categories: Biophotometry

Opto Ireland 2002

Opto Ireland 2002

Size selective photoluminescence excitation spectroscopy in CdTe quantum dots
Yury Rakovich - , Laura Walsho , Louise Bradley , John F . Donegano , Dmitri
Talapin " , Andrey Rogacho , Alexander Eychmüller " Semiconductor Photonics ...

Author: Werner J. Blau

Publisher:

ISBN: UOM:39015052553057

Category: Optics

Page: 1398

View: 806

Categories: Optics

Journal of the Physical Society of Japan

Journal of the Physical Society of Japan

Optical Study of Phonon - Mediated Carrier Relaxation in CdTe / ZnTe Self -
Assembled Quantum Dots Tsuyoshi OKUNO * , Mitsuhiro NOMURA ' , Yasuaki
MASUMOTO , Yoshikazu TERAI ! " , Shinji KURODA ' , and Kôki TAKITA ' Institute
of ...

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Publisher:

ISBN: OSU:32435069071652

Category: Physics

Page:

View: 452

Categories: Physics

Semiconductor Nanocrystal Quantum Dots

Semiconductor Nanocrystal Quantum Dots

Ann Rev Biomed Eng 7: 55–76 [39] Byrne SJ, Corr SA, Rakovich TY, Gunko YK,
Rakovich YP, Donegan JF, Mitchell S, Volkov Y (2006) Optimisation of the
synthesis and modification of CdTe quantum dots for enhanced live cell imaging.

Author: Andrey Rogach

Publisher: Springer Science & Business Media

ISBN: 9783211752371

Category: Technology & Engineering

Page: 372

View: 440

This is the first book to specifically focus on semiconductor nanocrystals, and address their synthesis and assembly, optical properties and spectroscopy, and potential areas of nanocrystal-based devices. The enormous potential of nanoscience to impact on industrial output is now clear. Over the next two decades, much of the science will transfer into new products and processes. One emerging area where this challenge will be very successfully met is the field of semiconductor nanocrystals. Also known as colloidal quantum dots, their unique properties have attracted much attention in the last twenty years.
Categories: Technology & Engineering

Peptide coated Semiconductor Quantum Dots and Their Applications in Biological Imaging of Single Molecules in Live Cells and Organisms

Peptide coated Semiconductor Quantum Dots and Their Applications in Biological Imaging of Single Molecules in Live Cells and Organisms

Peptide Coating of Near Infrared CdTe / CdSe / Zns Quantum Dots Various types
of qdots emitting in the NIR region have ... Among them , Cadmium telluride (
CdTe ) qdots are sen semiconductor nanocrystals that have size dependant ...

Author: Fabien Floren Pinaud

Publisher:

ISBN: UCLA:L0096939079

Category:

Page: 470

View: 481

Categories:

Science Abstracts

Science Abstracts

Author:

Publisher:

ISBN: OSU:32435054907035

Category: Electrical engineering

Page:

View: 693

Categories: Electrical engineering

Physics Briefs

Physics Briefs

We investigated iodine doping in mercury cadmium telluride (Hgi_ , Cd.Te)
grown by direct alloy growth using metalorganic ... We introduce a new concept
to directly synthesize IH-V semiconductor quantum-wire and quantum-dot
structures.

Author:

Publisher:

ISBN: UOM:39015027851834

Category: Physics

Page:

View: 537

Categories: Physics

Imaging Manipulation and Analysis of Biomolecules Cells and Tissues

Imaging  Manipulation  and Analysis of Biomolecules  Cells  and Tissues

300 m Figure 3 - Transmission electronic microscopy image of as - prepared
CdTe quantum dots . Scale bar : 100 nm . 2 . 3 . FUNCTIONALIZATION WITH
GLUCOSE A 0 , 01M glucose ( Sigma ) solution was prepared in aqueous
medium and ...

Author:

Publisher:

ISBN: UOM:39015058746499

Category: Biomolecules

Page:

View: 114

Categories: Biomolecules

Referate

Referate

HREM CHARAKTERISIERUNG VON KLEINEN CdTe TEILCHEN H . Hofmeister ,
R . Hillebrand und W . Neumann Max ... High - resolution electron microscopy
and microanalysis of CdS and CdTe quantum dots in glass matrices , Phil . Mag .

Author: Deutsche Gesellschaft für Kristallographie. Jahrestagung

Publisher:

ISBN: UOM:39015053993476

Category: Crystallography

Page: 402

View: 442

Categories: Crystallography

Chemosensors

Chemosensors

A new nanobiosensor for glucose based on the FRET between concanavalin A (
ConA)modified CdTe quantum dots and B-CD-modified gold nanoparticles has
been recently reported [64]. Quantum dots such as CdS, CdTe, and ZnS ...

Author: Binghe Wang

Publisher: John Wiley & Sons

ISBN: 1118019571

Category: Science

Page: 524

View: 891

A thorough, accessible, and general overview of chemosensors Providing a comprehensive overview of chemosensors—organic molecules designed to bind and sense small molecules or metal ions—and their applications, Chemosensors: Principles, Strategies, and Applications is an accessible one-stop resource for analysts, clinicians, and graduate students studying advanced chemistry and chemosensing. Chemosensors function on a molecular level, generating a signal upon binding. The book reviews their synthesis, design, and applications for detecting biological and organic molecules as well as metal ions. The text highlights applications in drug discovery and catalyses that have not been well covered elsewhere. Covering such topics as molecular recognition, detection methods, design strategies, and important biological issues, the book is broken into four sections that examine intermolecular interactions, strategies in sensor design, detection methods, and case studies in metal, saccharide, and amino acid sensing. An indispensable source of information for chemical and biomedical experts using sensors, Chemosensors includes case studies to make the material both accessible and understandable to chemists of all backgrounds.
Categories: Science

Molecular Nano Dynamics Spectroscopic methods and nanostructures

Molecular Nano Dynamics  Spectroscopic methods and nanostructures

47 Hohng , S . and Ha , T . ( 2004 ) Near - complete suppression of quantum dot
blinking in ambient conditions . ... Biju , V . and Isikawa , M . ( 2007 ) Optical and
dynamic properties of water - soluble highly luminescent CdTe quantum dots .

Author: Hiroshi Fukumura

Publisher:

ISBN: UCSD:31822037484854

Category: Molecular dynamics

Page:

View: 105

Categories: Molecular dynamics

Journal

Journal

X - ray power diffraction data obtained from pure CdSe , pure CdTe , and alloyed
CdSej - Tex quantum dots . The size of all dots was approximately 5 nm in
diameter , and the asterisk ( * ) indicates a spurious signal . 0.60 0 15 60 75 ( c )
30 45 ...

Author: American Chemical Society

Publisher:

ISBN: NYPL:33433068513294

Category: Chemistry

Page:

View: 751

Categories: Chemistry

Nanotechnology Food Security and Water Treatment

Nanotechnology  Food Security and Water Treatment

2009); quantum dot-fluorescence resonance energy transfer based nanosensor
for witches' broom disease of lime caused by ... 1.15a cadmium telluride quantum
dots were multicolorcoded microspheres that have quantum dots of different ...

Author: K M Gothandam

Publisher: Springer

ISBN: 9783319701660

Category: Technology & Engineering

Page: 334

View: 441

This book reviews advanced nanotechnology in food, health, water and agriculture. In food, nanobiosensors display an unprecedented efficiency for the detection of allergens, genetically modified organisms and pathogens. In agriculture, nanofertilisers improve plant nutrition by releasing nutrients slowly and steadily. Nanomaterials synthesised using biomass such as fungi are further found remarkable to clean waters polluted by heavy metals. However, as newly introduced materials in the environment, nanoparticles may exhibit toxic effects, which are reviewed in this book. In the context of climate change, methods for water desalinisation are also presented.
Categories: Technology & Engineering

Japanese Journal of Applied Physics

Japanese Journal of Applied Physics

Introduction electro - optic ( EO ) sampling configuration , unless otherwise
Cadmium telluride ( CdTe ) is a compound semiconductor ... 4 and 88 for
quantum dots with a long spin relaxation time , a uJ / cm2 ) , while probe power is
kept at 2 .

Author:

Publisher:

ISBN: UOM:39015039857100

Category: Physics

Page:

View: 531

Categories: Physics