Custom cell mimics, built to your spec.
Precision-engineered cell mimics designed to your exact specifications — for rare indications, novel targets, and complex multi-biomarker panels.
- A free, no-obligation consultation
- Direct access to a Field Application Scientist
Request a consultation
A Field Application Scientist replies within 2 business days — no sales pressure.
- 100+ custom mimics completed
- Proven success
- <10% CV
- Lot-to-lot consistency
- Non-biohazardous
- Safe synthetic materials
Trusted by the world's leading pharma, biotech, and CROs
Designing and building your Custom TruCytes®
Our commercial and R&D teams work alongside your scientists under a structured project-management framework — delivering your Custom TruCyte on time, on budget, and to a defined quality standard.
With more than 100 custom mimic designs completed, our process is proven. Expect maximum efficiency through design and build, and optimal quality at delivery.
- 01
Evaluation
Begin with a no-cost consultation with our Business Development Executive and Field Application Scientists to define the specifications, functionality, and performance targets for your ideal TruCyte.
- 02
Feasibility & customization
Our R&D team assesses feasibility and maps decision-gating milestones, with a complete risk assessment, cost estimate, and development timeline.
- 03
Scale-up & validation
Rigorous verification and validation establish the foundation for adoption. Dedicated Field Application support ensures a smooth, confident transition to large-scale production.
- 04
Production
Production scales as your needs grow. Lot sizes adjust to demand, replenishment is scheduled in advance, and ongoing training and on-site support remain available.
Configure a control that matches your assay exactly
Custom TruCytes® deliver consistency, accuracy, and scalability tailored to your specific research workflow. Each control can be configured across a range of parameters.
Surface biomarkers
Configure single or multiple surface biomarkers for precise antigen detection and quantification.
Tailored antigen levels
Highly stable, reproducible signal detection at intensities previously out of reach with biological samples.
Viability compatibility
Integrate seamlessly with DNA- and amine-based viability reagents used in standard laboratory protocols.
Unparalleled customization across therapeutic areas
Our patented technology mimics specific cellular expression levels for advanced research, diagnostic, and therapeutic applications — down to the individual biomarker.
Single or multiple proteins
Incorporate one or more rare or targeted biomarkers on a single TruCyte to replicate complex cellular populations.
Distinct populations
Model heterogeneous cell environments by defining distinct populations within a sample.
Variable expression levels
Fine-tune biomarker expression to reflect high, low, or intermediate intensities for more accurate assay development.
Surface & intracellular biomarkers
Create controls for both surface and intracellular biomarkers to solve challenges for your whole panels.
Rare or novel proteins
Access non-commercial proteins through our expertise in isolation and incorporation — even the most niche targets.
Size & morphology control
Select TruCyte dimensions and morphology to match specific cell types by flow cytometry — lymphocytes, monocytes, granulocytes, and more.
Cell mimics prove superior to biologic controls
In a global, multi-site instrument standardization study across 30+ flow cytometers, synthetic mimics eliminated the variability that donor-derived controls introduce.
Biological controls
Donor PBMCs create inherent data-quality challenges that compromise assay reliability.
Synthetic cell mimics
Synthetic reproducibility enables confident data interpretation and rapid issue detection.
Up to 60% variability
in population counts across sites, instruments, and operators.
Consistent detection
of all cell types across sites, machines, and operators.
Missed low-frequency cells
due to noise floor masking rare populations.
Tech errors immediately visible
as peaks stand out against a stable baseline.
Tech errors hidden in noise
making troubleshooting and QC nearly impossible.
Operator error detection
enables targeted training and site-integration QC.
“In our search for reliable controls for cell therapy assays, partnering with Slingshot has been a game-changer. Together, we addressed significant challenges by engineering custom CD3 T-cell mimics.”

Amina Kariminia
Ph.D. · Immunologist, Analytical Development Scientist
“…these off-the-shelf controls seamlessly slot into our processes. This enhances our workflow efficiency without having to compromise on data quality and reliability.”

Dr. Veronica Nash
Cerba Research
See what Custom TruCytes® deliver in the literature
Peer-reviewed studies and case studies from teams building assays with Slingshot cell mimics.
Published research
Build your own customized TruCytes®
A Field Application Scientist will reply within 2 business days to discuss a Custom TruCytes® solution matched to your application. No sales pressure — just science.
- A free, no-obligation consultation
- Direct access to a Field Application Scientist


