The year is off to a strong start. From new peer-reviewed evidence and public attention around blood-based Alzheimer’s biomarkers, to practical insights on microsampling workflows: here are some January highlights from Capitainer.

🎯 20% off SEP10 – to celebrate recent attention
Capitainer®SEP10 enables self-collection of plasma-like samples from capillary blood – separated, volume-defined, and dried at the point of collection.
✔️ Enables sampling anywhere
✔️ No centrifugation & ambient shipping
✔️ Suitable for decentralized and large-scale studies
To support ongoing and upcoming biomarker studies and projects, we’re offering 20% off SEP10 for a limited time. Offer cannot be combined with other discounts or promotions
➡️ Valid until 4 February 2026
➡️ No discount code needed
📊 New Nature Medicine study: scalability in practice
Capillary blood for Alzheimer’s biomarker analysis
Blood biomarkers for Alzheimer’s disease are advancing rapidly — and questions around scale are becoming increasingly important.
Venipuncture, processing, and cold-chain logistics don’t scale easily when the goal is population-level studies or broad clinical trial enrollment.
A new Nature Medicine study (DROP-AD) points to a different path: capillary blood collected as dried plasma and blood spots to measure key Alzheimer’s biomarkers, including p-tau217, GFAP, and NfL.
The study included 337 participants across 7 European centers and demonstrated:
🩸 A good correlation between capillary DPS p-tau217 and venous plasma p-tau217
🧠 Good accuracy for identifying CSF-confirmed Alzheimer’s pathology (research context)
🏠 Clear feasibility signals for self-collection and for populations where venipuncture can be challenging
Beyond the data, the bigger signal is direction: simpler collection, fewer logistical constraints, and the potential to reach larger and more diverse cohorts at scale.
We previously highlighted this work on our website (here), including interviews with Professor Henrik Zetterberg discussing the importance of home-based, quantitative microsampling for Alzheimer’s biomarkers.
🧠 From peer-reviewed evidence to public attention
Finger-prick testing for Alzheimer’s biomarkers
ollowing the Nature Medicine publication on scalable blood-based Alzheimer’s biomarkers, it’s encouraging to now see finger-prick testing featured by the BBC in the context of large international trials.
The Bio-Hermes-002 study is evaluating whether minimally invasive, finger-prick blood sampling can help detect Alzheimer’s-associated biomarkers, with the long-term goal of enabling earlier, more accessible diagnosis at scale.
We’re proud that Capitainer’s volumetric microsampling technology is being used in this study, led by LifeArc together with the Global Alzheimer’s Platform Foundation, with support from the UK Dementia Research Institute.
Together, these efforts point in the same direction:
🩸 Less invasive sampling
📦 No cold-chain logistics
🌍 Broader inclusion and reach
📊 Real-world scalability beyond specialist clinics
Blood-based biomarkers are moving fast. Scalable sampling will determine how far they can go.
🔬 Webinar highlight: Microsampling device selection in practice
In a recent PCSIG webinar, Jeff Plomley presented a bioanalytical approach to microsampling device selection; highlighting a capability that has not previously been demonstrated (to our knowledge) in microsampling devices.
A key focus of the presentation was the successful identification and use of stabilizers for labile drug compounds that are otherwise prone to degradation. Importantly, the work showed that Capitainer®B is the first microsampling device where stabilizers have been integrated directly into the device during manufacturing.
The session also covered how bioanalytical drivers such as hematocrit effects, substrate selection, analyte stability, and extractability over time should guide device choice.
Key topics included:
- Strategies to eliminate HCT-induced recovery bias
- Stabilization of labile analytes via substrate pre-treatment
- Workflows for small molecules and antisense oligonucleotides
- Validation considerations for regulated bioanalytical assays
Of interest to:
- Scientists developing microsampling-based bioanalytical methods
- Clinical researchers and decision makers selecting sampling devices
- Biotech and Pharma teams using microsampling in drug development
👉 Watch it here
