Affinité Instruments
Guides, app notes, protocols and insights — everything you need to get the most out of SPR.
Browse the full list of peer-reviewed publications, book chapters, and preprints from labs worldwide — filterable by topic and searchable by keyword.
Browse publications →How a patented optical foundation enables miniaturization, workflow integration, a path to automation, and signal quality you can trust — and why those are all consequences of the same design decision.
Read the technical note →We've traveled to labs on four continents. The most common thing we hear: "I'm not sure my data is good enough." Here's how to read what your sensorgram is actually saying.
Read the guide →A visual reference for the most common sensorgram shapes — ideal binding, bulk RI shifts, baseline drift, non-specific binding, slow dissociation and more.
Open cheat sheet →Understand the two immobilization strategies — direct covalent coupling vs. capture-based — and which one fits your experiment.
Quick visual reference for diagnosing common SPR data issues at a glance.
When to use each mode, what data you get, and a side-by-side comparison table.
Characterising the LacI–LacO interaction using the P4SPR in a label-free format.
Real-world detection of explosive residues in water using portable SPR biosensing.
Pheromone–CD36 transmembrane protein binding characterised by SPR with sub-μM KD values.
Oriented His-tag immobilization yields 5–10× greater surface density and superior reproducibility for anti-EcAII detection in patient serum.
Rapid label-free quality control of antibody preparations — activity and purity in one run.
Rapid, label-free mapping of EntA–F biosynthetic pathway interactions using the P4SPR quad-channel platform.
How Affinité's benchtop P4PRO delivers high-quality kon, koff, and KD data with a portable, user-friendly design.
Real-time SPR monitoring of AAV capsid binding during gene therapy vector production.
DNA probe screening with eSPR, split-aptamer hydrogels for vancomycin monitoring, PNA aptamer design for cardiac troponin I, and wearable translation.
Complete first experiment with the P4SPR 2.0 Starter Kit — EDC/NHS immobilization, 5-concentration IgG binding, KD fitting.
General-purpose EDC/NHS coupling on carboxyl sensors. Updated for AffiLabs.core v2.0.
Oriented His-tag capture via Ni-NTA for recombinant proteins. No activation or blocking required.
High-affinity streptavidin–biotin capture for biotinylated molecules on SPR surfaces.
Verify sensor sensitivity (≥ 1700 RIU/nm) using 5 NaCl concentrations. 30-minute procedure.
Comparing static incubation and flow-controlled injection modes — when to use each and why.
SPR principle, instrument configuration, sensor classes (thin-film vs LSPR), and surface functionalization — the essentials for every user.
Steady-state vs. kinetic experimental setup — when to use each and what data you get.
Sensor chip design, surface chemistry options (SAM, NTA, AffiCoat, streptavidin), and coupling method selection guide.
Five sensorgram phases, shape interpretation, quality features, and how the P4SPR generates binding data.
Field notes from four continents, sensorgram diagnostics, and what we're building next.
AffiLabs.core is now available for the P4SPR — from run to results in one session, with SPARQ™ embedded.
US patent granted, precision P4PRO kinetics case study, and the carry-on test.
Global lab visits, the three SPR questions we heard everywhere, and what we're building for 2026.
On-site SPR testing, 20+ conditions in 2 hours, and a kinetic vs. static explainer.
In-facility antibody characterization, product growth, and a look at mobile SPR.
The founding story, 500+ researchers worldwide, and what a decade of lensless SPR looks like.
PEGS 2025 · Zhao S., Ricard P., Meredith R., Campbell C., Live L. — mAb characterization during biomanufacturing and IgG1–Protein A kinetics with the P4SPR.