Nanotechnology News and Research

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Carbon nanotube amplification strategies for highly sensitive immunodetection of cancer biomarkers

In an attempt to increase the sensitivity of cancer biomarker detection and to decrease the need for large samples from which to detect those molecules, a multi-institutional research team has shown that a "forest" of single-walled carbon nanotubes can be used to detect lower levels of the prostate specific antigen (PSA) than is possible using the current commercial assay.

25 Sep 2006

Nanocantilever biosensors detect multiple genes

Using nanoscale cantilevers in a microfluidics device, a team of European researchers has developed a portable biosensor capable of detecting specific genetic sequences.

19 Sep 2006

Detecting cancer with silica nanoparticles

Tumor necrosis factor-alpha is a widely accepted biomarker for cancer, but the minute amounts of this protein circulating in blood makes detecting the molecule and measuring its concentration accurately a technological challenge.

19 Sep 2006

Cell detachment model for an antibody-based microfluidic cancer screening system

In the quest to detect more types of cancers at ever earlier stages, researchers have been stymied by a lack of cell surface markers that distinguish in a clear-cut manner between healthy and malignant cells.

19 Sep 2006

Cisplatin nanoliposomes for cancer therapy

Cisplatin is one of the most powerful and effective drugs for treating a wide variety of cancers, but many tumors develop resistance to this drug, ultimately limiting its benefits for cancer patients.

19 Sep 2006

Could quantum dots hold the cure to cancer?

Review of quantum dot technologies for cancer detection and treatment.

13 Sep 2006

Nanocantilevers as future disease detectors

Researchers at Purdue University have made a discovery about the behavior of tiny structures called nanocantilevers that could be crucial in designing a new class of ultra-small sensors for detecting viruses, bacteria, and other pathogens.

12 Sep 2006

Synthetic low-density lipoprotein-like nanoparticles target brain tumors

Low-density lipoprotein, better known as LDL, is one of the chief villains involved in the development of coronary artery disease.

12 Sep 2006

New screening method shows how nanoparticles interact with human cells

Scientists at the Brookhaven National Laboratory have developed a screening method to examine how newly made nanoparticles interact with human cells following exposure for various times and doses. Using this new method, the investigators have been able to visualize how human cells interact with some specific types of carbon nanoparticles.

12 Sep 2006

New information on how to design nanoparticles that avoid macrophage uptake

Few researchers doubt the potential for nanoparticles to revolutionize the way anticancer drugs and imaging agents are delivered to tumors.

12 Sep 2006

Quantum dot nanodevice that can detect and image apoptosis

Aiming to help researchers get a better handle on how - and if - anticancer agents are triggering cell death, investigators at the University of Twente in The Netherlands have developed a quantum dot nanodevice that can detect and image apoptosis, also known as programmed cell death.

5 Sep 2006

Scientists develop magnetic nanoparticles for medicine

Magnetic iron oxide nanoparticles have already proven their utility for imaging metastatic breast cancer lesions in sentinel lymph nodes, and numerous groups are attempting to use iron nanoparticles in other imaging applications.

5 Sep 2006

New method for attaching tumor-targeting antibodies to the surface of buckyballs

Hollow buckyballs, spherical molecules made of sixty carbon atoms linked to one another like the panels of a soccer ball, have the potential to ferry large doses of anticancer drugs or imaging agents to tumors.

5 Sep 2006

Targeted nanoparticles to improve Boron-Neutron capture therapy

Boron-neutron capture therapy (BNCT) is an experimental treatment for virulent brain cancer that aims to kill malignant cells by generating high-energy alpha particles inside tumors.

5 Sep 2006

New methods for screening nanoparticles and interaction with human cells

Scientists have developed a screening method to examine how newly made nanoparticles - particles with dimensions on the order of billionths of a meter - interact with human cells following exposure for various times and doses.

21 Aug 2006

Investigation of the proinflammatory potential of biodegradable nanoparticle drug delivery systems in the lung

Drug developers consider the lungs to be an excellent route through which to administer drugs.

21 Aug 2006

Dual-mode nanoscale imaging yields new details of cellular events

To create drugs capable of targeting malignancies, scientists must first decode exactly how a cell or a group of cells communicates with other cells and reacts to a broad spectrum of complex biomolecules surrounding it.

21 Aug 2006

Targeted magnetic nanoparticles may be useful in both detecting and treating metastatic breast cancer

An in-depth study of nanoparticle distribution in tumor-bearing mice has shown that targeted magnetic nanoparticles accumulate and cluster in both primary breast tumors and metastatic lesions that have developed in the lung.

21 Aug 2006

St. John's wort and polymeric nanoparticles to treat ovarian tumors using light

By combining a compound produced by the plant St. John's wort with polymeric nanoparticles, researchers at the University of Geneva in Switzerland have developed a promising method for treating ovarian tumors using light.

21 Aug 2006