Quantum Dots News and Research

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A quantum dot is a semiconductor whose excitons are confined in all three spatial dimensions. As a result, they have properties that are between those of bulk semiconductors and those of discrete molecules.

Rice, TMC team wins stimulus funds for nanoparticle standardization

One of the promises of nanomedicine is the design of tiny particles that can home in on diseased cells and get inside them. Nanoparticles can carry drugs into cells and tag cells for MRI and other diagnostic tests; and they may eventually even enter a cell's nucleus to repair damaged genes. Unfortunately, designing them involves as much luck as engineering.

11 Dec 2009

Cromoz's new drug delivery system to reduce amount of drugs used in cancer treatment

Cromoz Inc., located in Research Triangle Park, will initiate water-soluble carbon nanotube-based cancer drug delivery system in Hyderabad, India. The water-soluble carbon nanotubes, which have functional groups on the walls that allows for conjugation with cancer drugs, was developed in partnership with the Indian Institute of Kanpur (ITT). The conjugated carbon nanotubes serves as a drug delivery vehicle with the ability to target the cancer site which has the potential to increase the drug efficacy.

28 Nov 2009

IBN iCare to develop cutting-edge nanomaterials for ocular therapy

Marking a significant bench to bedside research milestone in Singapore, the Institute of Bioengineering and Nanotechnology (IBN), the world's first bioengineering and nanotechnology research institute, and the National University Hospital (NUH) launched the IBN iCare and the NUH Eye Centre @ Biopolis at an official opening ceremony officiated by the Senior Minister of State for Trade and Industry and Education, S. Iswaran, at the Biopolis on Nov. 3, 2009.

4 Nov 2009

Latest optical and laser technology in medicine displayed at FiO meeting

From scopes that help premature babies breathe to techniques for imaging live neurons and beating hearts as they develop, the latest optical and laser technology being deployed in medicine and the biosciences will be on display at the Optical Society's (OSA) Annual Meeting, Frontiers in Optics (FiO), which takes place Oct. 11-15 at the Fairmont San Jose Hotel and the Sainte Claire Hotel in San Jose, Calif.

1 Oct 2009

Researchers to analyse nanoparticles

Researchers at Swansea University's Centre for NanoHealth have been awarded £1 million by the Research Councils' Nanoscience through Engineering to Application cross-council programme, led by the Engineering and Physical Science Research Council (EPSRC), to analyse the levels at which nanoparticles can be deemed safe within cells.

3 Sep 2009

Rapid, accurate and cost-efficient testing of DNA with the Nanogap Sensor Array

A novel electronic sensor array for more rapid, accurate and cost-efficient testing of DNA for disease diagnosis and biological research has been developed by scientists at Singapore's Institute of Bioengineering and Nanotechnology (IBN).

27 Aug 2009

Scientists combine two nanoparticles into one tiny package

Nanoparticles are being developed to perform a wide range of medical uses - imaging tumors, carrying drugs, delivering pulses of heat. Rather than settling for just one of these, researchers at the University of Washington have combined two nanoparticles in one tiny package.

28 Jul 2009

Nanosys reaches settlement of patent infringement lawsuit against Nanoco Technologies

Nanosys, Inc. today announced it has agreed to settlement terms of a patent infringement lawsuit against Nanoco Technologies Ltd.

23 Jul 2009

A quantum dot-based method for analysis of DNA methylation

One of the earliest events that changes a normal cell into a malignant one is known as deoxyribonucleic acid (DNA) hypermethylation, a biochemical alteration that inactivates critical tumor-suppressor genes.

21 Jul 2009

Expanding quantum dot utility in cancer diagnosis and treatment

Quantum dots (QDs), nanoparticles that shine with extraordinary brightness when excited by light energy, have shown promise as new tools for detecting cancer at its earliest appearance, but concerns about potential toxicities have limited their clinical development. Researchers at the University of Buffalo may have found an answer to this limitation with their development of a new way to create QDs.

28 Jun 2009

Discovery of key molecular target in age-related macular degeneration

A team of researchers led by Dr. Jayakrishna Ambati at the University of Kentucky has discovered a biological marker for neovascular age-related macular degeneration (AMD), the leading cause of blindness in older adults.

15 Jun 2009

Nanoneedle introduces minimal intrusiveness in penetrating cell membranes

Researchers at the University of Illinois have developed a membrane-penetrating nanoneedle for the targeted delivery of one or more molecules into the cytoplasm or the nucleus of living cells.

30 Apr 2009

Singapore scientists synthesize gold to shed light on cells' inner workings

Highly fluorescent gold nanoclusters for sub-cellular imaging have been synthesized by researchers at the Institute of Bioengineering and Nanotechnology (IBN), one of the research institutes of Singapore's A*STAR (Agency for Science, Technology and Research).

16 Apr 2009

Safer nanoparticles spotlight tumors, deliver drugs

Small is promising when it comes to illuminating tiny tumors or precisely delivering drugs, but many worry about the safety of nanoscale materials.

26 Mar 2009

Tiny flakes of silicon spotlight tumors, deliver drugs

Small is promising when it comes to illuminating tiny tumors or precisely delivering drugs, but many worry about the safety of nano-scale materials.

22 Feb 2009

New possibilities for the uses of nanoparticles

Chemistry researchers at the University of Warwick have found that tiny nanoparticles could be twice as likely to stick to the interface of two non mixing liquids than previously believed.

17 Feb 2009

Quantum dot hazards

Quantum dots have the potential to bring many good things into the world: efficient solar power, targeted gene and drug delivery, solid-state lighting and advances in biomedical imaging among them.

2 Feb 2009

Smallest quantum dots ever created

Single atom quantum dots created by researchers at Canada's National Institute for Nanotechnology and the University of Alberta make possible a new level of control over individual electrons, a development that suddenly brings quantum dot-based devices within reach.

29 Jan 2009

Artificial antibody delivers nanoparticles to tumors

Antibodies that target epidermal growth factor receptor (EGFR) have proven themselves as potent anticancer drugs. Now, a team of investigators led by Shuming Nie, Ph.D., and Lily Yang, Ph.D., both at the Emory University School of Medicine and members of the Emory-Georgia Tech Nanotechnology Center for Personalized and Predictive Oncology, is aiming to capitalize on this targeting ability, using a modified anti-EGFR antibody to delivery nanoparticles into tumor cells.

18 Jan 2009

Nontoxic nanoparticle delivers and tracks drugs

A nontoxic nanoparticle developed by Penn State researchers is proving to be an all-around effective delivery system for both therapeutic drugs and the fluorescent dyes that can track their delivery.

18 Nov 2008