3Dresyn Biotough D90 MF peer reviewed research
Tough, monomer-free biocompatible photopolymer — used and characterised in peer-reviewed biomedical research.
What the studies report, the official datasheet values, and the post-processing that governs biocompatibility.
3Dresyn Biotough D90 MF is a tough, high-rigidity, monomer-free biocompatible photopolymer for SLA, DLP and LCD printing (385–405 nm).
Beyond its datasheet specifications, research groups have used and characterised it in peer-reviewed journals — across radiopaque load-bearing implant research, stem-cell organ-on-a-chip post-processing and electrospun-membrane biofabrication.
This page summarises what those studies reported, links to the original publications, and lists the official datasheet values. Study results are attributed to their authors and are not first-party performance claims by 3Dresyns; where a study used a reinforced or modified formulation, that is stated explicitly.
Biotough D90 MF has been used or characterised in peer-reviewed studies across three biomedical research areas. The datasheet values further down describe the neat resin; study results describe the specific formulations and protocols used by each research group.
What peer-reviewed research reported
Imaging-trackable, load-bearing structures for bio-implant research
A 2026 study from the Engineered Biomedical Materials Research and Innovation Centre at Manipal University Jaipur — co-authored with the Resyner Technologies S.L. / 3Dresyns team — used Biotough D90 MF as the biocompatible matrix to fabricate radiopaque bone plates on a masked stereolithography printer. In that work the resin was formulated into a composite with the 3D-ADD ROC1 radiopaque concentrate (up to 25 wt%), a 0.5 wt% silk-powder reinforcement and a 0.2 wt% silane coupling agent. The authors reported that this radiopaque silk-reinforced composite reached a tensile strength of about 48.9 MPa, a flexural strength of about 86.2 MPa and a compressive strength of about 292.4 MPa, with radiographic visibility comparable to a steel reference and negligible mass change over 28 days in simulated body fluid. The authors note that biological evaluation of the specific composite remains future work. 3Dresyns is acknowledged for supplying the resin and additives.
The strength figures above are the study's composite results (resin + radiopaque concentrate + silk), not the values of the neat resin. The neat-resin reference values appear in the specifications table below.
Reducing extractables for stem-cell culture via post-processing
A 2025 study in Materials Advances (Royal Society of Chemistry) tested four resins advertised as biocompatible — including Biotough D90 MF — to evaluate post-processing methods. The authors reported that a 60-minute wet-autoclave step reduced leachables to near the detection limit and that adipose-derived stem cells grown in contact with the wet-autoclaved parts showed metabolic activity comparable to the control, in contrast to dry-autoclaved parts. The study's contribution is a fast, standardised post-processing step rather than a claim about the resin in isolation.
Structural frames for electrospun nanofiber membranes
A 2025 study in Micromachines (MDPI), from the University of Dayton, used Biotough D90 MF to print rigid circular frames directly onto fragile chitosan–PEO electrospun nanofiber membranes, enabling routine handling without membrane damage. With an optimised post-processing protocol (extended UV post-curing), the framed membranes passed the ISO 10993-5 cell-viability threshold in standardised extract assays and reached acceptable viability in the optimal direct-contact configuration, supporting their use as components for cell-culture and barrier-tissue models.
Evidence at a glance
What each study used and reported
| Research area | Study formulation | Key reported result | Journal | Year |
|---|---|---|---|---|
| Radiopaque load-bearing bone plates | Biotough D90 MF + 25 wt% ROC1 + 0.5 wt% silk + 0.2 wt% SCA (composite) | Tensile ~48.9 MPa, flexural ~86.2 MPa, compressive ~292.4 MPa; radiopaque vs steel reference; chemically stable in simulated body fluid over 28 days | J. Reinf. Plast. Compos. (SAGE) | 2026 |
| Stem-cell organ-on-a-chip | Neat printed parts; four biocompatible resins compared | A 60-minute wet-autoclave step reduced leachables to near the detection limit; stem-cell growth comparable to control, unlike dry-autoclaved parts | Materials Advances (RSC) | 2025 |
| Electrospun nanofiber frames | Neat printed frames; optimised UV post-curing | Passed the ISO 10993-5 viability threshold in extract assays; acceptable viability in the optimal direct-contact configuration | Micromachines (MDPI) | 2025 |
Mobile: scroll horizontally to view all columns; the first column stays visible. The radiopaque-composite figures are the study's reinforced formulation, not the neat-resin datasheet values below.
Engineering insight
Biocompatibility is a material–process system
Two of these peer-reviewed studies converge on the same point: the cell-culture compatibility of printed parts depends on the post-processing. The resin supplies the technical-file inputs; washing, post-curing and sterilisation determine the behaviour of the finished part.
Biocompatibility is the result of a complete material–process workflow — not a property of the liquid resin alone.
Official technical specifications (TDS-verified)
Manufacturer specifications (TDS v2.0)
Values are indicative, measured on printed and post-processed specimens, and vary with printer, parameters, build orientation and post-curing.
| Property | Typical reference value | Method |
|---|---|---|
| Shore hardness | D90 | ISO 868 |
| Tensile strength | 40–60 MPa | ISO 527-1 / 527-2 |
| Tensile (Young's) modulus | 2200–2800 MPa | ISO 527-1 / 527-2 |
| Elongation at break | 5–10 % | ISO 527-1 / 527-2 |
| Flexural strength | 60–90 MPa | ISO 178 |
| Heat deflection temperature | > 120 °C @ 0.45 MPa | ISO 75 |
| Density | 1.0–1.2 g/cm³ | ISO 1183 |
| Water absorption | < 0.1 % (24 h @ 23 °C) | ISO 62 |
Biocompatibility is evaluated according to ISO 10993 on post-cured and properly cleansed specimens, with manufacturing aligned to ISO 13485 quality management systems. The system is monomer-free, designed to minimise residual extractables after proper post-processing. Printing range: 385–405 nm (SLA, DLP, LCD).
Frequently cited applications of Biotough D90 MF
Where it is used
- Biocompatible SLA / DLP / LCD resin
- Organ-on-chip fabrication
- Sterilisable 3D-printed labware
- Radiopaque biomedical research composites
- Electrospun membrane supports
- Biomedical prototyping
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Frequently asked questions
Is Biotough D90 MF a finished medical device?
No. It is supplied as a professional manufacturing material and is not marketed as a finished medical device. The regulatory classification, conformity assessment and validation of any final device made with it remain the sole responsibility of the legal manufacturer, in accordance with Regulation (EU) 2017/745.
Has it been used in peer-reviewed research?
Yes — including the three studies summarised above (SAGE 2026, RSC Materials Advances 2025 and MDPI Micromachines 2025), among others listed in the Press & Publications hub.
What hardness and toughness can I expect?
Per the datasheet, Shore D90 hardness with typical tensile strength of 40–60 MPa and flexural strength of 60–90 MPa. Final part performance depends on your printer, parameters, washing and post-curing.
Does post-processing affect biocompatibility?
Yes. Peer-reviewed studies report that washing, extended UV post-curing and, in one case, a wet-autoclave step substantially reduce extractables and improve cell-culture compatibility. Biocompatibility is a property of the complete material–process workflow, not of the liquid resin alone.
Get Biotough D90 MF
Tough, high-rigidity, monomer-free biocompatible photopolymer for SLA, DLP and LCD printing (385–405 nm), available in 500 g and 1000 g units.
This material is supplied as a professional manufacturing material and is not marketed as a finished medical device. The regulatory classification, conformity assessment and validation of any final device manufactured using this material remain the sole responsibility of the legal manufacturer.
More 3Dresyns evidence
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