Farfield Group Ltd - Dual Polarisation Interferometry, Pharmaceutical Screening, Interfacial Studies

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Farfield is an innovator and global supplier of analytical instruments and contract research services, addressing the metrology needs of Biophysics and Surface Science research and development. These disciplines provide the most demanding measurement challenges facing nanotechnology research.

In Biophysics, Farfield's proprietary technology is capable of revealing the intimate and complex relationship between structural change and function in biological molecules in real time, at market-leading levels of sensitivity and resolution.

In Surface Science Farfield's measurement solutions offer the physical scientist, insights into the structural and functional behaviour of biomolecules, surfactants, polymers and fine chemicals on a range of surfaces relevant to FMCG sectors.

Dual Polarisation Interferometry: Protein Conformation Analysis

The AnaLight® Bio200 utilises Farfield's Dual Polarisation Interferometry (DPI) technology. Controlled sample transport introduces the sample to the AnaChip™ waveguide surface, enabling data acquisition and analysis. The technique produces high-resolution, quantitative structural measurements in real time, comparable with techniques such as NMR spectroscopy and circular dichroism (CD).

A range of prepared AnaChip™ surfaces and reagent kits is available to suit all applications which include: antibody/antigen interactions; isoform-specific protein-protein interactions; lipid/membrane protein interactions, protein conformation analysis and protein/metal ion studies, ie. conformational change in prion protein challenged with various metal ions.

Sample Delivery for Pharmaceutical Screening

The AnaLight® BioFlex offers automated sample delivery to 50-vial, 96-well and 384-well plate formats, allowing the operator to scale up their research and development. User-friendly method scripting allows unattended operation with the benefit of optional manual intervention during runs.

Applications include: lead discovery; lead optimisation; pharmaceutical screening; identification of drug targets and drug candidates; development of diagnostic assays; ligand binding studies and determination of specific and non-specific binding in drug candidate investigations. For example, DPI has been used to investigate conformational change in MAP kinase (implicated in cancer, inflammation and obesity) in response to agonists, antagonists and non-specific binders.

Molecular Microscope: Interfacial Studies

The AnaLight® Nano200 Molecular Microscope is a manual DPI system whose quantitative structural measurements agree well with methods such as ellipsometry and neutron reflection. Controlled micro-fluidic injection transports the sample over the AnaChip™ waveguide surface, enabling data acquisition and analysis. A range of prepared AnaChip™ surfaces and reagent kits is available to suit all applications which include: interfacial studies, membrane studies; polymers, surfactants and their interactions; biocompatibility, eg. deposition of proteins and peptides onto wound dressings, dental implants and contact lens material; the analysis of lipid bilayers and liposomes and their interactions with other biomolecules, eg. the disruption of immobilised liposomes by melittin.

Automated Sample Delivery

The AnaLight® NanoFlex is an automated sample delivery system compatible with 50-vial, 96-well and 384-well plate formats, allowing high productivity research and development. The device offers unattended operation and optional user intervention.

The AnaLight® NanoFlex has proved invaluable for customers in the FMCG sector, with quantitative, real-time data producing accurate results allowing rapid validation of product claims. It has been used to study surfactant formulation behaviour, oral hygiene, cosmetic products etc. and hence speed up the translation of research ideas into marketable products. Farfield's ability to analyse optical anisotropy (birefringence) allows DPI to provide accurate analysis of ordered systems such as lipids, membrane proteins and their interactions.

Contact:

Robert C Hutton PhD
Sales and Marketing Director
Farfield Group Ltd.
Farfield House
Southmere Court
Electra Way
Crewe Business Park
Crewe
Cheshire
CW1 6GU
United Kingdom

Mobile: +44 7738 171457
Tel: +44 870 950 9717
Fax: +44 870 950 9718

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