Analytical Chemistry News and Research

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Gold nanoparticle-based colorimetric assay for the direct detection of cancerous cells

Early detection of tumors is one of the Holy Grails of cancer research, an achievement that would greatly improve cancer therapy and prognosis. Two new reports describe different but promising approaches to solving this problem.

3 Mar 2008

New technique to identify, treat bacterial infections

A new technique developed by a University of Central Florida chemist will help physicians more quickly identify the bacterial infections patients have so they can be treated in hours instead of days.

20 Feb 2008

Cancer cell targeting using multiple aptamers conjugated on nanorods

Aptamers, short stretches of DNA or RNA that can act much like antibodies, have shown promise as targeting agents for selective nanoparticle trafficking to tumors.

16 Jan 2008

Scientists levitate cells with light to sort

Separating out particular kinds of cells from a sample could become faster, cheaper and easier thanks to a new system developed by MIT researchers that involves levitating the cells with light.

10 Dec 2007

Significant improvement over current test for human papillomavirus

Iowa State University researchers have developed a technology that detects a single molecule of the virus associated with cervical cancer in women.

31 Oct 2007

New test detects the presence of biogenic amines

Researchers in California are reporting development of a fast, inexpensive test suitable for home use that could help millions of people avoid those 'out of the blue' headaches that may follow consumption of certain red wines, cheese, chocolate, and other aged or fermented foods.

2 Oct 2007

Rapid testing for pre-natal detection of Down syndrome

Scientists in California are reporting an advance toward rapid testing for pre-natal detection of Down syndrome and other birth defects that involve an abnormal number of chromosomes.

18 Sep 2007

Alternative methods proposed to detect pesticides and antibiotics in water and natural food

Water or food of natural origins (from plants or animals) that we consume on a daily basis can contain unwanted ‘supplies' for our organism, such as pesticides or antibiotics.

18 Sep 2007

Nanotechnology helps identify molecular signature common to Lou Gehrig's disease

A nanotechnology developed by a University at Buffalo professor has enabled researchers to identify a molecular signature common to both familial and sporadic cases of amyotrophic lateral sclerosis (ALS), or Lou Gehrig's disease.

5 Sep 2007

Gold nanoparticles for cancer diagnosis

When it comes to searching out cancer cells, gold may turn out to be a precious metal.

1 Aug 2007

Aptamer-targeted nanoparticles collect and detect cancer cells

Using magnetic and fluorescent nanoparticles capable of binding tightly to molecules found only on the surface of cancer cells, a team of investigators at the University of Florida has developed a method for collecting and detecting multiple cancer cells from biological samples.

14 Jun 2007

Researchers develop cantilever biosensor with potential for medical diagnostic testing

A Drexel University engineering professor has developed a millimeter-size cantilever biosensor that can detect cells and proteins in trace samples and in only minutes.

26 Apr 2007

Potential new cancer diagnosis and treatment options

By recognizing sugars, a technique developed by University of Michigan analytical chemist Kristina Hakansson sets the stage for new cancer diagnosis and treatment options.

2 Apr 2007

MChip to detect H5N1

Scientists from the University of Colorado at Boulder and the Centers for Disease Control and Prevention (CDC) have developed an inexpensive "gene chip" test based on a single influenza virus gene that could allow scientists to quickly identify flu viruses, including avian influenza H5N1.

14 Nov 2006