Corporate Banner
Satellite Banner
Technology
Networks
Scientific Communities
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Gold-Plated Nano-Bits Find, Destroy Cancer Cells

Published: Monday, October 21, 2013
Last Updated: Monday, October 21, 2013
Bookmark and Share
Scientists have merged tiny gold and iron oxide particles, then added antibody guides to steer them through the bloodstream toward colorectal cancer cells.

And in a nanosecond, the alloyed allies then kill the bad guys – cancer cells – with absorbed infrared heat.

This scenario is not science fiction – welcome to a medical reality.

“It’s a simple concept. It’s colloidal chemistry. By themselves, gold and iron-oxide alloys are benign and inert, and the infrared light is low-power heating,” said Carl Batt, Cornell’s Liberty Hyde Bailey Professor of Food Science and the senior author on the paper. “But put these inert alloys together, attach an antibody to guide it to the right target, zap it with infrared light and the cancer cells die. The cells only need to be heated up a few degrees to die.”

Batt and his colleagues – Dickson K. Kirui, Ph.D. ’11, a postdoctoral fellow at Houston Methodist Research Institute and the paper’s first author; Ildar Khalidov, radiology, Weill Cornell Medical College; and Yi Wang, biomedical engineering, Cornell – published their study in Nanomedicine (print edition, July 2013).

For cancer therapy, current hyperthermic techniques – applying heat to the whole body – heat up cancer cells and healthy tissue, alike. Thus, healthy tissue tends to get damaged. This study shows that by using gold nanoparticles, which amplify the low energy heat source efficiently, cancer cells can be targeted better and heat damage to healthy tissues can be mitigated. By adding the magnetic iron oxide particles to the gold, doctors watching MRI and CT scanners can follow along the trail of this nano-sized crew to its target.

When a near-infrared laser is used, the light penetrates deep into the tissue, heating the nanoparticle to about 120 degrees Fahrenheit – an ample temperature to kill many targeted cancer cells. This results in a threefold increase in killing cancer cells and a substantial tumor reduction within 30 days, according to Kirui. “It’s not a complete reduction in the tumor, but doctors can employ other aggressive strategies with success. It also reduces the dosage of highly toxic chemicals and radiation – leading to a better quality of life,” he explained.

The study was funded in part by the Ludwig Institute for Cancer Research, and Kirui was supported by a Sloan Foundation Graduate Fellowship.


Further Information
Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 2,500+ scientific posters on ePosters
  • More Than 3,700+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.

Related Content

Tumor-suppressing Gene Lends Insight to Cancer Treatment
Researchers have found that delicate replication process derails if a gene named PTEN has mutated or is absent.
Tuesday, July 14, 2015
Synthetic Immune Organ Produces Antibodies
Cornell engineers have created a functional, synthetic immune organ that produces antibodies and can be controlled in the lab, completely separate from a living organism.
Friday, June 12, 2015
On Planes, Savory Tomato Becomes Favored Flavor
Study shows the effect that airplane noise has on passengers' taste preferences.
Friday, May 15, 2015
$5.5M NSF Grant Aims to Improve Rice Crops with Genome Editing
Researchers to precisely target, cut, remove and replace DNA in a living cell to improve rice.
Friday, May 08, 2015
'Shield' Gives Tricky Proteins a New Identity
Solubilization of Integral Membrane Proteins with high Levels of Expression.
Saturday, April 11, 2015
DNA Safeguard May Be Key In Cancer Treatment
Cornell researchers have developed a new technique to understand the actions of key proteins required for cancer cells to proliferate.
Monday, March 09, 2015
A ‘STAR’ is Born: Engineers Devise Genetic 'On' Switch
A new “on” switch to control gene expression has been developed by Cornell scientists.
Tuesday, February 03, 2015
Bacteria Be Gone!
New technology keeps bacteria from sticking to surfaces.
Monday, January 19, 2015
On the Environmental Trail of Food Pathogens
Learning where Listeria dwells can aid the search for other food pathogens.
Tuesday, December 23, 2014
Chemists Show That ALS is a Protein Aggregation Disease
Using a technique that illuminates subtle changes in individual proteins, chemistry researchers at Cornell have uncovered new insight into the underlying causes of Amyotrophic Lateral Sclerosis (ALS).
Thursday, October 23, 2014
Genetics Used to Improve Plants for Bioenergy
An upcoming genetics investigation into the symbiotic association between soil fungi and feedstock plants for bioenergy production could lead to more efficient uptake of nutrients, which would help limit the need for expensive and polluting fertilizers.
Thursday, August 28, 2014
Computer Model Reveals Cancer's Energy Source
Findings focused on the energy-making process in cancer cells known as the Warburg Effect.
Tuesday, August 19, 2014
A New Player in Lipid Metabolism Discovered
Specially engineered mice gained no weight, and normal counterparts became obese on the same high-fat, obesity-inducing Western diet.
Monday, August 18, 2014
Ingested Nanoparticles May Damage Liver
Although nanoparticles in food, sunscreen and other everyday products have many benefits, researchers from Cornell are finding that at certain doses, the particles might cause human organ damage.
Tuesday, August 12, 2014
Foodborne Pathogen Detection Speeds Up Dramatically
Next-generation sequencing techniques allow rapidly identification of strains of salmonella, quickening responses to potential outbreaks.
Monday, July 21, 2014
Scientific News
NIH Study Finds Calorie Restriction Lowers Some Risk Factors for Age-Related Diseases
Two-year trial did not produce expected metabolic changes, but influenced other life span markers.
Immunotherapy Agent Benefits Patients with Drug-Resistant Multiple Myeloma in First Human Trial
Daratumumab proved generally safe in patients, even at the highest doses.
Low-level Arsenic Exposure Before Birth Associated with Early Puberty in Female Mice
Study examine whether low-dose arsenic exposure could have similar health outcomes in humans.
Inciting an Immune Attack On Cancer Cells
A new minimally invasive vaccine that combines cancer cells and immune-enhancing factors could be used clinically to launch a destructive attack on tumors.
‘Mutation-Tracking’ Blood Test for Breast Cancer
Scientists have developed a blood test for breast cancer able to identify which patients will suffer a relapse after treatment, months before tumours are visible on hospital scans.
Cellular Contamination Pathway for Heavy Elements Identified
Berkeley Lab scientists find that an iron-binding protein can transport actinides into cells.
Intensity of Desert Storms May Affect Ocean Phytoplankton
MIT study finds phytoplankton are extremely sensitive to changing levels of desert dust.
Common ‘Heart Attack’ Blood Test May Predict Future Hypertension
Small rises in troponin levels may have value as markers for subclinical heart damage and high blood pressure.
LaVision BioTec Reports on the Neuro Research on the Human Brain After Trauma
Company reports on the work of Dr Ali Ertürk from the Institute for Stroke and Dementia Research at LMU Munich.
NIH Study Shows No Benefit of Omega-3 Supplements for Cognitive Decline
Research was published in the Journal of the American Medical Association.
Scroll Up
Scroll Down
Skyscraper Banner

Skyscraper Banner
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
2,500+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
3,700+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FREE!