3D printers in laboratories: new opportunities for medicine, biotechnology and scientific research

3D printing has long ceased to be a technology for enthusiasts. Laboratories of various fields — from medical and biotechnology to pharmaceutical and engineering — are actively introducing modern 3D printers into their daily work. Thanks to them, it has become possible to create personalized tools, organ models, adapters for equipment, complex prototypes and even experimental samples of tissues and implants.

The technology allows you to speed up experiments, increase accuracy, reduce costs, and expand the range of laboratory solutions that were previously available only to large research centers.

Why laboratories have begun to massively switch to 3D printing

Demand for 3D printers has grown dramatically after they proved their effectiveness in critical conditions — for example, during the COVID-19 pandemic, when laboratories printed adapters, holders, protective screens, and other elements for the continuous work of medical personnel.

There are several key reasons why the technology has become the standard today. modern laboratories:

• the ability to quickly create parts specifically for a specific experiment
• time saving — replacement of parts that previously took weeks to arrive from the manufacturer
• reduction of costs for laboratory instruments
• high degree of customization
• the possibility of developing unique devices "in a single copy"«
• integration of 3D printing with microfluidic systems, biochips and sensors

In many cases, 3D printing gives laboratories complete autonomy and independence from third-party suppliers.

What 3D printers are used in laboratories?

Different types of printers are used for scientific tasks, depending on the accuracy, material, and purpose:

• FDM printers — for prototypes, housings, holders, mounts
• SLA / DLP printers — for high-precision parts, microfluidic channels and biomedical elements
• SLS printers — for durable parts with complex geometry
• bioprinters — for printing cellular structures, matrices and tissue models

Scientific laboratories are increasingly combining different types of printers to achieve maximum functionality.

How 3D printing is used in medical laboratories

Medical and diagnostic laboratories use 3D printing in the following areas:

• printing of tube holders and non-standard adapters
• creation of anatomical models of organs for preparation for operations
• manufacturing of housings for laboratory instruments
• production of prototypes for medical equipment
• printing of training models for doctors and students
• printing microfluidic chips and components

The most important advantage is the ability to quickly produce something that is not available in mass production.

Biotechnology and 3D printing: a new level of research

In bio- and molecular laboratories, 3D printers are used for:

• creation of reactors and biochips
• adapted holders for PCR tubes and microtiter plates
• prototypes for cell culture systems
• parts for microscopes and analyzers
• microfluidic systems (channels, chambers, reservoirs)

SLA printers are particularly valuable because they allow the creation of ultra-thin structures with high transparency, which is ideal for optical experiments.

3D printing in pharmaceutical laboratories

Pharmaceutical companies are implementing 3D printers into their processes:

• printed matrices for tablets
• modeling of drug delivery systems
• personalized dosage forms
• creation of containers for storing reagents
• development of experimental equipment

FDA research has shown that 3D technologies can change the approach to the production of medicines, making them personalized.

Advantages of 3D printers in laboratory conditions

Key advantages that scientific centers offer:

• the ability to create complex shapes without additional tools
• rapid prototyping
• low cost
• flexibility in production
• minimizing the human factor
• accessibility for small laboratories

This makes the technology accessible to both public and private laboratories.

What can labs print on 3D printers?

Limitations and challenges of technology

Despite the advantages, there are also problems that laboratories take into account:

• not all materials are biocompatible
• SLA resins may require post-curing
• FDM parts are less precise
• complex designs sometimes require professional modeling
• sterility control is required

The constant development of technology is gradually overcoming these limitations, making 3D printing even more accessible and versatile.

FAQ: Frequently Asked Questions About Using 3D Printers in Labs

How to understand which 3D printer is right for my lab

It all depends on the tasks. If you need technical parts, holders, housings or adapters, an FDM printer is suitable. For precise microfluidic channels or optical parts, it is better to use SLA printers. For very strong functional parts, SLS. If the laboratory works with cell cultures and biomaterials, a bioprinter is needed.

Can I print parts for devices that come into contact with reagents?

Yes, but you need to consider the chemical resistance of the material. For example, PLA is good for general tasks, but does not withstand the effects of solvents. PETG, ABS and nylon have better chemical stability. In laboratories, special biocompatible resins are often used for SLA printing.

Can 3D printers replace the purchase of laboratory equipment?

Not entirely, but in a large number of cases they allow replacing expensive or scarce components: adapters, non-standard holders, housings, mounts, modifications for devices. This saves the budget and speeds up the work of the laboratory. Complex devices and certified equipment are still purchased separately.

How accurate are the printed details?

Accuracy depends on the type of printer.
• FDM provides a resolution of approximately 0.1–0.2 mm.
• SLA provides accuracy of up to 0.025 mm and a smooth surface suitable for microfluidic systems.
• SLS provides high strength and detail for functional parts.
For most laboratory tasks, SLA printing is the most accurate.

Can 3D printed parts be sterilized?

Yes, but the method depends on the material:
• PLA and PETG cannot withstand autoclaving.
• ABS is partially stable, but can deform.
• nylon (SLS) often withstands sterilization.
• special medical resins (SLA) allow autoclaving.
In laboratories, UV chambers and chemical methods are often used to sterilize parts.

How long does it take to manufacture a part?

On average, it takes from 20 minutes to several hours, depending on the size and printing technology. This is much faster than ordering serial parts from a manufacturer, which can take 1–3 weeks.

Can objects be printed for high temperature applications?

Yes, but you need to use polycarbonate, nylon, or high-temperature resins for SLA printing. Regular PLA is not suitable for this.

Is specially trained personnel needed?

Most modern 3D printers do not require special training: basic models are set up intuitively. However, for SLA, SLS or bioprinting, it is desirable to have special skills in working with materials and post-processing.

Can 3D printers be a source of errors in experiments?

Yes, if the material is chosen incorrectly, there are modeling inaccuracies, or there is no dimensional control. For critical experiments, it is necessary to check the accuracy of the printed part with a caliper or micrometer.

Does 3D printing really save lab money?

In most cases, yes. Manufacturing a holder or adapter costing 500–2000 UAH may cost a laboratory only 20–60 UAH in materials. For R&D centers, the savings are especially noticeable, since prototypes can be printed in-house, rather than ordered from third-party companies.

3D printing in laboratories continues to grow rapidly and is becoming an integral part of modern research. It opens up access to engineering solutions even for small laboratories and allows the creation of customized tools that meet specific scientific needs as precisely as possible.