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.

Ohio engineers invent new fluorescent nano-particle to tag molecules in biomedical tests

Engineers at Ohio State University have invented a new kind of nano-particle that shines in different colors to tag molecules in biomedical tests.

29 Mar 2011

Quantum dots allow stem cell therapy monitoring for brain injury

A new technique using "quantum dots" produced through nanotechnology is a promising approach to monitoring the effects of stem cell therapies for stroke and other types of brain damage, reports the April issue of Neurosurgery, official journal of the Congress of Neurological Surgeons.

25 Mar 2011

Contrast agent for tumor diagnostics

X-rays are not the only way: visible and especially infrared light can also be used to image human tissue. The effectiveness of optical imaging processes can be significantly improved with suitable dyes used as contrast agents. In the journal Angewandte Chemie, a team led by Wenbin Lin at the University of North Carolina (Chapel Hill, USA) has now introduced a novel contrast agent that marks tumor cells in vitro. The dye is a phosphorescent ruthenium complex incorporated into nanoparticles of a metal–organic coordination polymer, which allows an extraordinarily high level of dye loading.

23 Mar 2011

Biomagnification of nanomaterials in simple food chain demonstrated

An interdisciplinary team of researchers at UC Santa Barbara has produced a groundbreaking study of how nanoparticles are able to biomagnify in a simple microbial food chain.

21 Dec 2010

Novel technology using quantum dots increases drug uptake in lung injury

Researchers at the University at Buffalo have developed a novel technology using quantum dots that is expected to have major implications for research and treatment of tuberculosis, as well as other inflammatory lung diseases.

2 Nov 2010

NIH awards contract to develop nanotechnology tools for atherosclerosis treatment

Georgia Tech and Emory University have received a five-year $14.6 million contract from the National Institutes of Health (NIH) to continue the development of nanotechnology and biomolecular engineering tools and methodologies for detecting and treating atherosclerosis.

5 Oct 2010

Researchers develop microneedles to deliver quantum dots for skin cancer treatment

Researchers from North Carolina State University have developed extremely small microneedles that can be used to deliver medically-relevant nanoscale dyes called quantum dots into skin - an advance that opens the door to new techniques for diagnosing and treating a variety of medical conditions, including skin cancer.

26 Aug 2010

Multicolor quantum dots can distinguish Reed-Sternberg cells, article shows

The tunable fluorescent nanoparticles known as quantum dots make ideal tools for distinguishing and identifying rare cancer cells in tissue biopsies, Emory and Georgia Tech scientists have demonstrated.

7 Jul 2010

Hospital TV remotes are potential reservoir of bacteria

According to RID (Committee to Reduce Infection Deaths) over thirty billion dollars is spent each year in the US on hospital-acquired infections. (Infections caught while hospitalized). These very preventable infections cost an additional $15,000.00 on average per patient infected and kill more people in this country than AIDS, breast cancer and car accidents combined.

8 Apr 2010

Research reveals molecular mechanism of DNA repair

New research led by scientists at the University of Essex has given an insight into how the body finds damage in the DNA code to repair it.

16 Mar 2010

SNM's Nanomedicine and Molecular Imaging Summit examines the use of nanoparticles

SNM's Nanomedicine and Molecular Imaging Summit wrapped up today in Albuquerque, N.M., with in-depth discussion-and a high sense of energy looking ahead.

3 Feb 2010

Stem cell therapy holds promise as potential alternative to bone grafting operations

A study published this week reinforces the potential value of stem cells in repairing major injuries involving the loss of bone structure.

12 Jan 2010

New therapeutic treatment may provide a potential alternative to bone grafting operation

A study published this week reinforces the potential value of stem cells in repairing major injuries involving the loss of bone structure.

12 Jan 2010

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