UpNano resins can only be purchased by UpNano’s customers or cooperation partners. 

The key differences lie in material properties such as mechanical strength and flexibility, thermomechanical behavior, optical transmission and fluorescence properties along with biocompatibility. More information can be found under our individual resin category pages linked above.

A literature overview of various applications utilizing UpNano material’s can be found on our Publications page.

Yes, the NanoOne 3D printing system is an open material platform. Various photopolymers optimized for 2PP can be used with the NanoOne.

A literature overview on custom materials used with the NanoOne can be found on our Publications page when filtering for “other” resins.

Yes, UpNano has an in-house team of material chemists dedicated to optimizing and developing new resins to expand the applications of 2PP 3D printing. We collaborate with customers on a case-by-case basis to develop custom materials tailored to their specific requirements.

UpNano recommends UpBrix 2 for high-resolution microprinting of parts with smallest feature size requirements.

The mechanical properties of each resin, including flexibility, hardness, and toughness, are detailed in their respective data sheets. These can be found on our downloads page. 

Detailed information on the mechanical properties of UpPhoto and UpDraft can also be found in the following publication:

T. Koch, W. Zhang, T. T. Tran, Y. Wang, A. Mikitisin, J. Puchhammer, J. R. Greer, A. Ovsianikov, F. Chalupa-Gantner, M. Lunzer, Approaching Standardization: Mechanical Material Testing of Macroscopic Two-Photon Polymerized Specimens. Adv. Mater. 2024, 36, 2308497. https://doi.org/10.1002/adma.202308497

What sets UpNano’s resins apart from third party materials is their specially developed photoinitiators and fine-tuned formulations, optimized for high-throughput, high-resolution 3D printing. Fast printing processes require highly reactive cross-linking chemistry. Additionally, UpNano’s standard production resins (UpPhoto, UpDraft) are fully cured immediately after printing, eliminating the need for post-curing.

Several UpNano’s materials including UpPhoto, UpBlack, UpFlow, UpOpto and UpThermo have been certified as non-cytotoxic according to the industry standard EN ISO 10993-5:2009.

Note: UpFlow, UpOpto and UpThermo require post-processing before becoming fully biocompatible.

UpNano has a portfolio of five (UpPhoto, UpOpto, UpFlow, UpBlack, UpThermo) biocompatible resins certified non-cytotoxic according to EN ISO 10993-5:2009.

Additionally, UpNano partners with BIO INX who develops gelatine-based and synthetic, technical hydrogels as well as biodegradable polyester-based materials. The BIO INX Hydrobio material is crystal clear for microscope use. 

Yes. UpOpto is an ultra low-fluorescent, optically transparent (> 400 nm) resin specifically designed for optical applications in the VIS-NIR range. Additionally, UpFlow is a low-fluorescent and widely transparent in the VIS spectral range. It has a lower viscosity than UpOpto, which allows for the printing of integrated microfluidic devices containing long, narrow channels that can be easily flushed clean after printing.

Yes, UpNano’s resins can be used for printing onto PCBs, MEMS or PICs. However, certain precautions are necessary to prevent damage to electrostatic-sensitive devices (ESD) when using these substrates. UpNano’s application team has experience in these cases and can provide guidance.

No pre-treatment is required for the resin itself. However, UpNano’s standard glass substrates must be pre-treated with a salinization process. This process can be done in bulk for multiple substrates in advance.

After printing, most UpNano materials only require a washing step to remove any residual liquid resin. This is typically done using two PGMEA baths, followed by a rinse in isopropanol. Some specific resins require special solvents for cleaning, and in certain cases, post-curing in a UV chamber may also be necessary (UpOpto, UpFlow).

For more detailed information, our online customer portal, HubNano, is available for NanoOne users with helpful tools and resources.

UpNano’s standard production resins are solvent-resistant to many organic solvents. However, harsh organic solvents such as acetone or methanol can swell printed parts after prolonged exposure. 

UpNano’s standard production resins should be stored in a controlled environment, such as a laboratory setting at 23°C (73.4°F) room temperature and below 60% humidity. Under these conditions, the resins have a guaranteed shelf life of six months.

Once a resin is placed in a vat, it is recommended to keep the lid on when not printing to minimize exposure to light, dust, and other environmental factors. Once added to a vat, it is recommended to use the resin within three days.

In special cases, certain resins need to be stored in a refrigerator at 4°C (39.2°F). Detailed storage requirements for each resin can be found on the resin lables as well as in the MSDS (Material Safety Data Sheet), which is provided upon purchase.

Yes, multi-material prints are possible in a step-by-step approach.