Lab-on-a-Nail — Supplementary Materials

This repository contains supplementary materials for the microfluidic nail biosensor research paper, including fabrication documentation, design files, and focus group study materials. These resources support system understanding, replication, and evaluation.

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Repository Contents

1. Participant Study Material

Nail It! Participants Guide and Deck.pdf
A flyer provided to focus group participants that explains:

• The purpose of the research project
• Overview of the microfluidic nail system
• Instructions for activities completed during the focus group study

This document reflects how the study and tasks were communicated to participants.

2. Fabrication Documentation

Paper Assay, Hydrogel, and Nail Fabrication Process.pdf
Step-by-step instructions for constructing the system, including:

• Paper assay fabrication
• Colorimetric biosensor hydrogel fabrication
• Microfluidic nail fabrication
• Required materials and workflow

This is the primary reference for reproducing the physical system.

3. Microfluidic Nail Design Files

• microfluidic nail.f3d — Editable Fusion 360 CAD model of the microfluidic nail.
• microfluidic nail.stl — 3D-printable mesh file for direct fabrication.
• nail 3d printing layout.form — Printing layout configuration for consistent manufacturing setup.

4. Paper Assay Design File

Paper Assay Final Shape.studio3
Vinyl cutting layout configuration for a consistent manufacturing setup of the paper-assay.

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Purpose

• Reproduction of the microfluidic nail biosensing system
• Inspection or modification of fabrication designs
• Transparency of study procedures and participant experience

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Basic Reproduction Workflow

1. Follow fabrication steps in the fabrication process PDF
2. 3D print the nail using the STL or FORM file (can also choose to modify the design using the F3D file)
3. Prepare the paper assay and hydrogel components
4. Assemble the full system
5. Use participant flyer if replicating the focus group study

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Recommended Software

• Autodesk Fusion 360 (for .f3d)
• Preform (FormLabs) (for .form) or another 3D slicing software (for .stl)
• Silhouette Studio (for paper assay production)
• PDF viewer

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Citation

Please cite the associated research paper when using these materials.

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Contact

For questions about fabrication or study replication, please contact the paper’s authors.