Flexible PDMS Microneedles | Custom Soft Microneedle Fabrication

We provides custom fabrication of flexible PDMS microneedle structures for biomedical research, wearable devices, soft biointerfaces, microfluidics, and prototype development.

Unlike traditional rigid silicon or metal microneedles, PDMS-based microneedles offer enhanced flexibility, conformability, and mechanical compliance, making them attractive for applications involving soft tissue interaction and flexible device integration.

What Are Flexible PDMS Microneedles?

Flexible PDMS microneedles are microstructured arrays fabricated from polydimethylsiloxane (PDMS), a biocompatible elastomer widely used in biomedical engineering and microfabrication.

The flexible nature of PDMS allows microneedle arrays to conform to curved surfaces and accommodate mechanical deformation while maintaining micro-scale structural features.

Key Features

• Flexible and deformable structures
• Biocompatible elastomer material
• High-fidelity replication from master molds
• Suitable for curved and irregular surfaces
• Optical transparency
• Customizable geometry and dimensions
• Rapid prototyping capability

Fabrication Process

Our fabrication workflow includes:

1. Microneedle design review
2. Silicon or metal master mold fabrication
3. PDMS casting and vacuum degassing
4. Controlled curing process
5. Demolding and inspection
6. Prototype evaluation

We support both customer-designed and custom-developed microneedle structures.

Available Structures

Conical Microneedles

Suitable for soft biointerface and sensing applications.

Pyramid Microneedles

Commonly used for research and prototype studies.

Micro-Pillar Arrays

Flexible microstructures for contact interfaces and wearable devices.

Custom Geometries

Custom needle height, pitch, tip radius, and array layout are available upon request.

Applications

Wearable Devices

Flexible microneedle structures can be integrated into wearable sensing and monitoring systems.

Biomedical Research

Suitable for laboratory studies involving soft tissue interfaces and microstructured surfaces.

Microfluidic Systems

PDMS microneedles can be incorporated into microfluidic and lab-on-chip platforms.

Academic Research

Widely used in universities and research laboratories for proof-of-concept development and experimental studies.

Design Parameters

Typical design parameters include:

• Needle height: 50–2000 μm
• Base diameter: custom
• Array density: custom
• Tip geometry: custom
• Substrate thickness: custom

Why Work With Us?

• Custom design support
• Silicon and metal master fabrication
• PDMS replication expertise
• Prototype and small-batch production
• Fast turnaround
• Research-focused engineering support

How to Request a Quote

Please provide:

• CAD file or drawing
• Needle dimensions
• Array layout
• Quantity
• Intended research application

Our engineering team will review your project and recommend an appropriate fabrication strategy.