Shaun Phillips: Senior NPD Scien3stShaun Phillips: Senior NPD Scien3st 2 A GLOBAL FOOTPRINT A...
Transcript of Shaun Phillips: Senior NPD Scien3stShaun Phillips: Senior NPD Scien3st 2 A GLOBAL FOOTPRINT A...
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SHAPING THE FUTURE OF LATERAL FLOW ShaunPhillips:SeniorNPDScien3st
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2
A GLOBAL FOOTPRINT
A leading expert in immunoassay development and manufacturing services, providing an extensive portfolio of products and technologies to the global diagnostic market
Introduction to BBI
USA Madison
Sweden Gnesta
Wales Cardiff Blaenavon
Scotland Dundee
England Sittingbourne a
China Hong Kong a
South Africa Cape Town a
FDA & ANVISA
7 30 SUPPLY SITES GLOBALLY
QUALITY STANDARDS
YEARS EXPERTISE
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Reagents Lateral Flow Development
Lateral Flow Manufacture
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Current Status: • Cost effective • User friendly • Deliverable • Rapid time to result
Challenges for Lateral Flow Immunoassays
Performance Enhancement: • Higher sensitivity • Better specificity • Improved reproducibility
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• Development of increasingly complicated tests
• Focus on improving assay sensitivity and limit of detection
• Drive for increased accuracy
• Develop enhancement technologies – need to maintain the original simplicity of the rapid test
Market Response “We’re looking for innovation around
sensitivity”
Director of Operations
“I want to see next-generation
technology, so we can offer something new to our customers allowing them to compete in their
market place”
Deputy Director
Internal Voice of the Customer data
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Focus on Signal Enhancement • LF blocking technology – in the conjugation
process a blocking agent is used on the label after antibody/antigen binding to prevent NSB
• Industry standards – majority of conjugates are blocked with BSA
• BSA problems
• Cross reaction
• may hinder the availability of antibody on the label surface due to it size
• Batch inconsistency
• Alternative blockers – agents such as fish gelatin, PEG and casein all suffer from lot to lot variability
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• BBI has developed a signal enhancement technology – Morffi
• Morffi technology utilises a synthetic biological blocker
• Significantly smaller in size compared to BSA to allow increased opportunity for interactions between the antibody on the gold and the target analyte
Solution…
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Improved signal intensity
Morffi conjugate and BSA blocked conjugates were run using a half dipstick method n=5
Control Line
Test Line
3.2ng/ml
Control Line
Test Line
1.6ng/ml
StandardBSAblocker Morffi
StandardBSAblocker Morffi
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Improved Signal Intensity
RESULT: Significant increase in signal intensity at all concentrations
of antigen
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The Limit of detection produced using MorffiTM is 0.08ng/ml BNP-32 antigen, whilst the BSA-blocked control conjugate allowed a Limit of detection of 0.8ng/ml BNP-32
RESULT: 10x improvement
in LOD
Improved Limit of Detection
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Morffi Advantages:
Up to 10x increase in sensitivity
Improved signal intensity Stronger signals generated at the current limit of detection for your test
Faster time to result Stronger signals gives faster rate to result
Simple, fast and inexpensive development No requirement to change assay format, materials or complexity
BSA Free No cross reaction
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• Demonstrated on polyclonal and monoclonal antibodies
• Assessed in sandwich and competitive assay formats
• Robustness of different batches of conjugate
• Large scale conjugate manufacture demonstrated
• Excellent stability of conjugates comparable to BSA blocked
Morffi Application
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§ Need for lower LOD in existing test – simple swap out
§ Qualitative assay where no requirement for LOD but stronger test line signal beneficial
• Veterinary test where BSA will cross react
• Bio-warfare test where time to result is critical to limit potential exposure
Examples where Morffi can be utilised
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Enhancement
Morffi joins our Lateral Flow Portfolio alongside:
AtomoRapid™
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Conclusion • Lateral Flow market is evolving into:
• Quantitation of results
• Improved sensitivity and specificity
• Requiring increasing assay reproducibility
• Exciting opportunities for innovation in the market
• BBI Solutions are…
SHAPING THE FUTURE OF LATERAL FLOW