Centrifugal microfluidic platform

Platform concept — in development

InvertaDx

An origami-inspired lab-on-disc concept exploring how staged fluid handling, centrifugal actuation, and compact readout could support diagnostic-assay research in resource-constrained settings.

Early-stage research concept only. InvertaDx is not a finished or commercially available product and has no established analytical, clinical, regulatory, or manufacturing performance.

InvertaDx concept showing a phone-supported enclosure beside a centrifugal microfluidic disc architecture
Original MicroCD Labs concept artwork. Component layout and enclosure form are exploratory and not to scale.

Development question

Can a compact disc organize multiple assay steps with fewer manual transfers?

The concept brings sample entry, staged reagent handling, separation, washing, mixing, waste capture, and measurement regions into one centrifugal architecture.

The “origami” direction refers to folding or layered construction approaches that may help organize channels and chambers while keeping early prototypes accessible. Final materials, fabrication method, assay chemistry, and readout remain to be defined and tested.

Proposed assay path

A staged centrifugal workflow

The source concept drawing suggests the following functional sequence. It is a development hypothesis, not a verified operating protocol.

  1. 01

    Load

    Introduce sample and dilution inputs into defined disc regions.

  2. 02

    Separate

    Use centrifugal forces and chamber geometry to support plasma or sample-fraction preparation.

  3. 03

    Process

    Sequence mixing, magnetic-particle handling, washing, and reagent-contact steps.

  4. 04

    Read

    Route final assay material toward measurement cuvettes or another application-specific detection region.

System definition

What the platform would need to resolve

Disc architecture

Channel geometry, chamber volumes, capillary valves, siphons, waste handling, balance, and spin protocol.

Assay integration

Sample type, separation performance, reagent storage, particle handling, incubation timing, and detection chemistry.

Instrument interface

Motor control, disc registration, enclosure, power, sensing, optical readout, and software-guided operation.

Evidence plan

Fluidic visualization, recovery measurements, contamination checks, repeatability, analytical comparison, and failure-mode testing.

Concept architecture

Disc, actuation, readout, and documented evidence

A useful platform must connect physical fluid handling to a repeatable operating method and inspectable data.

SampleDefined input and preparation requirements
DiscLayered channels, chambers, valves, and waste
Spin controlProgrammed acceleration, hold, and deceleration steps
ReadoutApplication-specific optical or sensor measurement

Development status

What is documented, and what is still open

Documented concept: an origami-based lab-on-disc direction, a proposed multi-chamber disc layout, a compact enclosure idea, and a visual demonstration of delayed lateral flow.

Open engineering work: requirements, materials, detailed CAD, spin profile, valve characterization, cartridge-to-instrument interface, and repeatable prototype fabrication.

Open assay work: target assay, reagents, sample preparation, analytical controls, readout method, calibration, interference testing, and comparison studies.

Source: technical wording and concept artwork were adapted from the earlier MicroCD Labs Google Site. Personal details were intentionally excluded.

Potential development fit

A platform program, not a single component

Fluidic developmentTranslate the proposed sequence into channels, chambers, valves, spin steps, and test articles.

Instrument integrationCoordinate motor control, mechanical registration, enclosure, sensing, readout, and operator workflow.

Verification planningDefine measurable fluidic, assay, usability, and repeatability questions before expanding claims.

Research and development

Discuss a lab-on-disc development question.

MicroCD Labs welcomes non-confidential conversations about centrifugal fluidics, assay integration, disc prototyping, spin-control workflows, and research readout strategies.

Please do not submit patient information, protected health information, trade secrets, unpublished results, or controlled technical data in an initial message.

Start with the intended sample, assay steps, desired output, current evidence, and the technical decision that needs to be made next.