Scope
Reference
202526 5355
Description
Purchase of an optical tweezer system with Total Internal Reflection Fluorescence (TIRF) microscopy and widefield microscopy plus microfluidics.
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Contract 1
Supplier
Contract value
- £877,740.50 including VAT
Above the relevant threshold
Earliest date the contract will be signed
18 November 2025
Contract dates (estimated)
- 19 December 2025 to 18 December 2030
- 5 years
Main procurement category
Goods
CPV classifications
- 38512200 - Molecular microscopes
Contract locations
- NL329 - Groot-Amsterdam
Other information
Conflicts assessment prepared/revised
Yes
Procedure
Procedure type
Direct award
Direct award justification
- Single supplier - technical reasons
- Extreme and unavoidable urgency
This procurement is being undertaken via a single-source route due to the unique
technical capabilities of the C-Trap® Dymo 400 and the exclusive rights held by its
manufacturer, LUMICKS B.V. the unique elements of this are:
• Multi-trap continuous-wave optical tweezers,
• Multi-colour confocal fluorescence microscopy, and
• Multi-channel laminar flow microfluidics.
These technologies are protected by several granted patents, including: US9952421,
EP3256254B1 (optical traps), US9766180, EP3004848B1 (fluorescence imaging),
S11156513B2 (optical force measurement) and EP3737756B1 (DNA supercoiling).
No other commercially available instrument can provide simultaneous, correlated forcedistance-fluorescence measurements with the required resolution and sensitivity.
Key performance features exclusive to the C-Trap include:
• Force resolution 0.1 pN and drift stability 0.3 pN over 2 minutes
• Confocal localisation precision 15 nm
• Real-time imaging of single molecules under physiological flow conditions
• Escape force 1000 pN, allowing for broad biological applicability
• Integrated hardware/software for fast setup and automated experimental workflows.
Additionally, the system includes a complete service and application support package,
exclusive training kits, and proprietary components that are not available from any other
provider
Supplier
Lumicks B.V.
- Companies House: 60187263
Paalbergweg 3
Amsterdam
1105AG
Netherlands
Telephone: +31 643216589
Email: j.osullivan@lumicks.com
Small or medium-sized enterprise (SME): Yes
Voluntary, community or social enterprise (VCSE): No
Contract 1
Contracting authority
University of Leeds
- Public Procurement Organisation Number: PDVB-8476-PXMZ
Purchasing Office, University of Leeds
Leeds
LS2 9JT
United Kingdom
Region: UKE42 - Leeds
Organisation type: Public authority - sub-central government