Aptamers News and Research

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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

Aptamers may refine cancer treatment

University of Florida researchers have successfully used molecular probes to detect subtle differences in leukemia cells from patient samples, an achievement that could lead to more effective ways to diagnose and treat cancer.

20 Jul 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

Archemix granted two European patents

Archemix has announced today the issuance of two key, broad patents by the European Patent Office ("EPO"). The patents, EP 0 786 469 and EP 0 668 931, broadly cover methods for the identification and use of aptamers for therapeutic applications.

8 Mar 2007

Aptamer-capped nanocrystal quantum dots

Quantum dots, used increasingly as bright fluorescent markers in basic research and diagnostic assays, must be coated, or capped, with one of a wide variety of organic molecules in order to stabilize these nanocrystals and prevent them from aggregating when added to water.

18 Dec 2006

High throughput quantification of protein expression of cancer antigens in tissue microarray using quantum dot nanocrystals

In attempt to identify biological markers, or biomarkers, that can signal the presence of cancer and help oncologists determine the best course of therapy when cancer is present, teams of investigators are scouring stored tissue samples obtained from thousands of cancer patients.

4 Dec 2006

Test strips for the rapid detection of cocaine

Saving the life of a poisoning victim is often a matter of minutes. It is best when the emergency doctor can perform a reliable diagnosis on the spot to determine which poison or what type of drug overdose a patient is suffering from. Complicated laboratory analyses and a complex apparatus are out of place in the emergency room.

21 Nov 2006

Low-field magnetic separation of monodisperse Fe3O4 nanocrystals

Whether the goal is to separate different types of cells or molecules, methods that rely on the age-old principle of magnetism are a staple among researchers.

20 Nov 2006

Modified silicon-based surfaces provide good home to proteins

Silicon, whether in its elemental form as silicon wafers or in its oxidized form, known as silicon dioxide or silica, is proving to be a valuable material for biomedical nanotechnology, in large part because of the biocompatibility and chemical inertness of these substances.

13 Nov 2006

Built-in blocker - drug and antidote in the same molecule

In cases of serious side effects or overdoses of medications, it can be vital to have a fast-acting antidote on hand.

2 Oct 2006

Sirna Therapeutics awarded patent covering large-scale synthesis of RNAi-based therapeutics

Sirna Therapeutics has announced that the United States Patent and Trademark Office (USPTO) has granted Sirna U.S. Patent No. 6,989,442 for the chemical synthesis and manufacturing of ribonucleic acids (RNA).

25 Jan 2006

New cancer detection method

University of Florida researchers say they are a step closer to a technique to easily detect a wide variety of cancers before symptoms become apparent.

7 Dec 2005

Targeted drug delivery now possible using nanoparticle-apatamer conjugates

Ground-breaking results from researchers at Harvard Medical School and Massachusetts Institute of Technology (MIT), USA, disclosed at the 13th European Cancer Conference (ECCO) have shown for the first time that targeted drug delivery is possible using nanoparticle-apatamer conjugates.

3 Nov 2005

Targeted drug delivery achieved with nanoparticle-aptamer bioconjugates

Ground-breaking results from researchers at Harvard Medical School and Massachusetts Institute of Technology (MIT), USA, disclosed at the 13th European Cancer Conference (ECCO) in Paris have shown for the first time that targeted drug delivery is possible using nanoparticle-apatamer conjugates.

1 Nov 2005

Unique arrays of proteins tethered onto self-assembled DNA nanostructures

In the fifty-year history since the structure of DNA was first revealed, what was once a Nobel prize- winning research discovery has become an omnipresent cultural icon co-opted for promoting everything from fragrances to musical acts.

20 Jun 2005

Pegaptanib (Macugen) is an effective treatment for neovascular age-related macular degeneration

Results from two concurrent, prospective, double-blind, multi-center clinical trials show that pegaptanib (Macugen), an anti-vascular endothelial growth factor therapy, is an effective treatment for neovascular age-related macular degeneration (AMD), according to a paper in the Dec. 30 issue of the New England Journal of Medicine. Macugen was approved by the Food and Drug Administration on Dec. 17.

30 Dec 2004

Macugen approved for the treatment of neovascular (wet) age-related macular degeneration (AMD)

Eyetech Pharmaceuticals and Pfizer have announced that the U.S. Food and Drug Administration (FDA) approved Macugen (pegaptanib sodium injection) for the treatment of neovascular (wet) age-related macular degeneration (AMD), an eye disease associated with aging that destroys central vision.

20 Dec 2004

Researchers have developed a novel drug-antidote pair

In a discovery that could give physicians more control over the actions of medications, researchers at Duke University Medical Center have developed a novel drug pair – a potent anti-coagulant with a matched "antidote."

18 Oct 2004

Discovery could lead to the creation of naturally decaffeinated coffee plants

Chemists at Emory University have made an important advance in harnessing the ability of bacteria to make new molecules, and their discovery could eventually lead to the creation of naturally decaffeinated coffee plants.

10 Oct 2004

New technology to diagnose, treat deadly diseases

By developing a new technology to analyze proteins in single human cells, York University professor Sergey Krylov hopes to create a diagnostic ‘Swiss Army Knife’ that can eventually help to diagnose and treat a variety of currently incurable diseases like cancer, diabetes, Parkinson’s and Alzheimer’s.

29 Sep 2004