quantum dots – Page 4 – TechConnect Briefs

Quantum Dots as a Unique Nanoscaffold to Mimic Membrane Receptor Clustering

Anikeeva N., Gakamsky D., Sykulev Yu., Thomas Jefferson University, US

We utilized quantum dots (QD) as a unique nanoscaffold with uniform size and well-defined structure to assemble membrane immune receptors on the surface of the dots at desired density. Such QD/receptor biosensors appear to be [...]

Small Photostable Photoswitchable Quantum Dots as Nanotools for Live Cell Imaging

Díaz S.A., Jovin T.M., Jares-Erijman E.A., University of Buenos Aires, CIHIDECAR, CONICET, AR

We have developed a novel surface architecture for the generation of biocompatible and stable photoswitchable quantum dots (psQDs). The system is based on Förster Resonance Energy Transfer (FRET) from a QD donor to diheteroarylethenes photochromic [...]

A DNA sensor using gold-coated barcode silica nanotubes

Kim S.Y., Jun S.J., Min J., Kyungwon University, KR

A DNA senor using silica nanotubes (SNTs) was developed to detect some bacteria by barcoded SNTs. The SNTs were fabricated using anodic aluminum oxide (AAO) templates by the surface sol-gel method. To recognize each DNA [...]

Electron Transition Between Weakly Coupled Concentric Quantum Rings

Filikhin I., Matinyan S.G., Nimmo J., Vlahovic B., North Carolina Central University, US

We investigate the electron wavefunction localization in double concnetric quantum rings when a magentic field is applied.

New Fluorescent Hybrid Materials Comprising Quantum Dots, Organic Fluorophores and Natural Fibre Substrates

Zeller A.J., Johnston J.H., Victoria University of Wellington, NZ

The nanotechnology research presented here deals with the development and characterisation of new fluorescent hybrid materials comprising quantum dots and organic fluorophores respectively with wool and paper fibres that exhibit tuneable optical fluorescence and electronic [...]

Sustainable and cost effective solar technology made from Tetrapod Quantum Dot Solar Cells

Glass R.A., Squires S., Solterra Renewable Technologies, Inc, US

Solterra Renewable Technologies Inc is designing and manufacturing solar cells using a proprietary thin film semiconductor technology that will allow a reduction in the average solar cell manufacturing costs and be extremely competitive. Solterra will [...]

Sustainable and cost effective solar technology made from Tetrapod Quantum Dot Solar Cells

Glass R.A., Squires S., Solterra Renewable Technologies, Inc, US

Solterra Renewable Technologies Inc is designing and manufacturing solar cells using a proprietary thin film semiconductor technology that will allow a reduction in the average solar cell manufacturing costs and be extremely competitive. Solterra will [...]

Bioluminescent quantum dots induced photodynamic therapy in vitro

Hsu C.Y., Lai P.S., Rao J.H., National Chung Hsing University, TW

Photodynamic therapy (PDT) is an innovative method for cancer treatment which involves the administration of a photosensitizing agent followed by exposure to the visible light. Appreciate light source to induce photosensitizing agent is the key [...]

Semiconductor nanoparticles in Photocatalysis: The Emerging Art and Perspectives

Sharma A., Sharma R., Sharma A., Sharma R., Sharma A., Sharma R., AKG College of Engineering, UPTU, IN

A principle of semiconductor nanophotocatalysis – a new trend in photochemistry deals with the photocatalytic redox-reactions with the participation of semiconductor nanoparticles. The origin of various size-dependent explanations in the semiconductor photocatalysis are spot light [...]

Atomistic Simulations of Electronic Structure in Realistically-Sized Wurtzite InN/GaN Quantum Dots

Yalavarthi K., Gaddipati V., Ahmed S., Southern Illinois University at Carbondale, US

In this work, within a fully atomistic framework, we investigate the electronic structure of wurtzite InN quantum dots self-assembled on GaN substrates. The main objectives are two-fold: (1) to explore the origin, nature and the [...]