Small molecules detection with aptamer based BLI and ELISA-like assays

2nd July 2019
Detecting and quantifying small molecule analytes can be difficult. Our specially designed displacement approach allows us to select aptamers which can directly be used in various biosensor platforms for the detection of small molecules. Binding of the aptamer to the analyte gives a ‘signal amplification’ effect which can be used as a basis for small […]

  • An Aptamer Group robot performing aptamer selection.

Our Small Moleule Approach

25th June 2019
Small molecule targets (such as antibiotics, many drugs, toxins, food additives etc) are often perceived as difficult targets to obtain a suitable affinity ligand. They represent a challenge for traditional aptamer selection approaches which rely on immobilisation of the target molecule for efficient partitioning. Modification of the small molecule to facilitate immobilisation often […]

Literature review: Rapid detection of Kanamycin antibiotic in complex food matrix

18th June 2019
Kanamycin is an aminoglycoside antibiotic isolated from Streptomyces kanamyceticus and is widely used to treat various infectious diseases in humans and animals. However, like other aminoglycoside antibiotics, kanamycin exhibits comparatively narrow safety margin as high doses can cause ototoxicity, nephrotoxicity and allergic reactions.

The current methods used for analysis for detecting kanamycin levels in […]

Using aptamers in different matrices

11th June 2019
There is a misconception that aptamer can only be used across a limited range of conditions or matrices. At Aptamer Group we start our aptamer selections with the end application in mind and generate our aptamers using conditions which closely resemble the end application. However, this shouldn’t restrict the possibilities of where an […]

The Stability of Aptamers

5th June 2019
One of the key benefits to using aptamers instead of antibodies is how you store and use the reagent. Over this past 60 years the stability of oligonucleotides has been rigorously studied and well defined.

Most provides of synthetic oligonucleotides recommend storing the suspended DNA at in a neutral buffer, free from divalent metal […]

Aptamers in food diagnostics

21st May 2019
Food and environmental monitoring is one of the most important aspects of dealing with recent threats to human well-being and ecosystems. Ensuring food safety is a top priority of authorities and professional players in the food supply chain.

One of the key challenges to determine the safety of food and guarantee a high level […]

Aptamers for siRNA delivery

15th May 2019
siRNA’s are functional double stranded RNA molecules which can be used to control gene expression by targeting a messenger RNA and promoting its degradation.  One of the challenges in the therapeutic application of siRNA’s is targeting and delivery of the siRNA, to the cell / tissue of interest. Various adjuvants have been tested […]

Literature Review: Distinguishing glycosylation patterns in proteins for the early detection of cancer.

7th May 2019
Glycosylation is a post-translational modification where a carbohydrate is added to a protein. Glycosylation of proteins serves a number of functions in a cell, including: improve protein folding, forming lipid anchors and cell-to-cell adhesion. While glycosylation of a protein can be vital for its function, any changes in the position or number of […]

Aptamer Therapeutics and Cancer Research UK announce partnership for drug development programme

30th April 2019
Following the successful awarding of a CRUK Biotherapeutic Drug Discovery Project Award, Aptamer Therapeutics Limited, part of Aptamer Group, is pleased to announce a new collaboration with Dan Wiseman and the Oglesby Leukaemia Research Programme at the University of Manchester and Cancer Research UK. The project will explore the potential of aptamers as […]

The Reusability of Aptamers for Affinity Chromatography

23rd April 2019
We have often shown that aptamers make ideal ‘capture reagents’ for use in target specific affinity chromatography. Their flexible structure makes aptamers ideally suited for the specific binding and controlled release of their target, even in the presence of complex matrixes such as cell lysates or plasma.

During the aptamer selection process, we can […]