Our Instruments

Built for the bench.

Two SPR instruments. One mission — make label-free binding data accessible to every lab, without the specialist or the wait.

Benchtop SPR

P4SPR 2.0

Real-time SPR.
On your bench today.

The P4SPR 2.0 is a 4-channel label-free biosensor designed for researchers who need quick binding data without the complexity of flow-based systems. Ultra-compact, laptop-powered, and ready to run in under an hour — from academic screening to clinical and environmental applications.

Detection limit

≥ pM

KD range

25×25×6 cm

Footprint

150 µL

Sample volume

4 simultaneous channels — run sample + controls in one injection
Static SPR mode — no pump, no fluidics, no clogging risk
Laptop powered — no dedicated power supply, works anywhere
150 µL per injection — minimal sample consumption
≤ 10 min per cycle — fast assay development and condition screening

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How it works

P4SPR 2.0 — 3-step static SPR workflow: manual injection, ELISA-like incubation, manual wash

Peer-reviewed publications

Independent research citing our platform, 2015–2025

Countries

Canada, USA, France, China, UK, Germany, Spain and more

Disease areas

Drug discovery, oncology, infectious disease, TDM, biomanufacturing QC

Advanced SPR

P4PRO + Affipump

Static and flow.
One instrument.

The P4PRO paired with the Affipump is the only compact SPR system that runs both static and flow-based experiments — giving you full kinetic characterization (k_on, k_off, K_D) alongside the quick screening capabilities of static SPR. Built for labs that need both flexibility and precision.

Detection limit

Channels

0.3–10,000 µL/min

Flow rate range

25×25×13.5 cm

Footprint

Hybrid static + flow mode — switch without reconfiguring your setup
Full kinetics — k_on 10³–10⁷ M⁻¹s⁻¹, k_off 10⁻⁵–10⁻¹ s⁻¹
Semi-automated injection — minimal hands-on time per run
5–100 µL flow injection — low sample consumption in flow mode
Direct inline controls — real-time feedback during every run

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How it works

P4PRO — 3-step kinetic SPR workflow: load sample loop, flow-controlled injection (on rate), flow-controlled buffer (off rate)

Real acquisition data — Protein A · IgG interaction

P4PRO kinetic sensorgram — Protein A IgG interaction, full association and dissociation curves with global fit

Side by Side

Which instrument fits your lab?

Both instruments run the same sensors and software. The difference is throughput and configuration.

Feature	P4SPR 2.0	P4PRO
Real-time SPR	✓	✓
Disposable sensors	✓	✓
Clog-free fluidics	✓	✓
Channels (simultaneous)	4	4
Detection limit	fM (assay dependent)	fM (assay dependent)
KD range	≥ pM	≥ pM
Sample volume	150 µL	5–100 µL (flow) / 300 µL (static)
Run time per cycle	≤ 10 min	2–15 min
Flow mode (kinetics)	—	✓
kon / koff measurement	—	✓
Semi-automated injection	—	✓
Laptop powered	✓	—
Best for	Screening, yes/no binding, assay development	Full kinetic characterization, drug discovery, QC

Not sure which fits your lab? Talk to us →

Software

AffiLabs.core — built for your instrument

Instrument control, data acquisition, and analysis — all in one desktop application. Includes SPARQ, the smart built-in operation support assistant.

Learn about the software →

Sensors & Kits

The right surface for every experiment

P4SPR sensors are disposable, pre-characterized gold chips — available in covalent and capture-based chemistries. No cleaning, no carry-over, no compromise.

Direct immobilization

Carboxyl, CMD, and AffiCoat surfaces for EDC/NHS covalent coupling. Permanent surface — no tag required.

Capture-based surfaces

Pre-coated Anti-His, NTA, Protein A/G, Streptavidin, Strep-Tactin XT, and Anti-AAVX. Ready to use — no coupling step.

Reagent kits

Amine coupling kits, NTA and SA kits, IgG capture kits, and immobilization scouting kits — everything you need to set up and validate your assay.

Find the right sensor → Browse & order catalog