Laboratory Sonicators for Reliable Sample Preparation

Hielscher laboratory sonicators deliver powerful, precisely controlled ultrasound for sample preparation, cell lysis, tissue homogenization, particle dispersion, emulsification, DNA/RNA shearing, protein extraction, and sonochemical reactions. From microliter samples and closed vials to beakers, flow cells, and 96-well plates, Hielscher offers the right ultrasonic homogenizer for your lab workflow.

Choose from compact handheld sonicators, digital probe-type ultrasonic homogenizers, cup horn systems, vial sonicators, and high-throughput plate sonicators. Adjustable amplitude, reproducible process control, temperature monitoring, data logging, and a wide range of probes and accessories help you achieve consistent results across research, analytical, and process-development applications.

How to Choose a Quality Laboratory Sonicator

When choosing a laboratory sonicator or ultrasonic homogenizer, the most important criteria are ultrasonic power, precise amplitude control, reproducibility, sample compatibility, ease of use, and reliable documentation. Hielscher probe-type sonicators are designed for demanding sample preparation tasks such as cell lysis, tissue homogenization, protein extraction, DNA shearing, nanoparticle dispersion, emulsification, degassing, and sonochemical reactions.
Hielscher lab sonicators combine powerful ultrasound with digital process control, robust accessories, and practical safety features. This makes them suitable for research laboratories, analytical labs, process development, and industrial quality control.

Performance and Process Control

• Ultrasonic Power and Intensity: Hielscher laboratory homogenizers are available with 50, 100, 200, and 400 watts of ultrasonic power. This allows you to select the right sonicator for small samples, routine lab work, larger beaker volumes, or flow-cell processing.
• Precise Amplitude Control: Adjustable amplitude lets you define the required sonication intensity for each application. This is essential for reproducible homogenization, cell disruption, particle dispersion, emulsification, and extraction. Automatic frequency tuning keeps the sonicator operating at the optimal frequency.
• Fast and Efficient Sample Preparation: Compared with methods such as bead milling, freeze-thaw cycles, high-pressure homogenization, or lyophilization, probe sonication often reduces processing time while improving reproducibility and process efficiency.
• Temperature Control: Digital Hielscher sonicators from 200 watts upward can be used with a pluggable temperature sensor. The sonicator monitors the sample temperature continuously and can pause automatically when a defined temperature limit is reached. Pulsed sonication further helps to reduce heat build-up during sensitive sample preparation.

Sample Compatibility and Accessories

• Wide Range of Sonotrodes and Probes: Different sonotrode diameters, shapes, and materials allow optimal adaptation to sample volume, vessel geometry, and process requirements. Hielscher probes are made from robust, corrosion-resistant materials such as titanium, ceramic, or glass.
• Flexible Vessel and Volume Options: Hielscher sonicators can be used with tubes, vials, beakers, flow cells, and multi-sample accessories. This makes them suitable for microliter samples, laboratory batches, and continuous inline processing.
• Versatile Applications: With the right probe or accessory, one ultrasonic homogenizer can be used for cell disruption, tissue homogenization, DNA and RNA shearing, protein extraction, nanoparticle dispersion, emulsification, mixing, degassing, extraction, and sonochemistry.
• Easy Cleaning and Maintenance: Sonotrodes, probes, and flow cells are easy to disassemble and clean. Autoclavable components, clean-in-place options, and sterilize-in-place options help prevent cross-contamination and support reliable daily laboratory use.

Digital Operation and Documentation

• Digital Control: Hielscher sonicators from 200 watts upward feature digital control with a color touch display, intuitive menu navigation, programmable settings, and browser-based remote control. Sample illumination on digital probe-type lab sonicators improves visibility during processing.
• Data Logging: Digital Hielscher sonicators include automatic data recording on an integrated SD card. Process parameters such as amplitude, energy input, temperature, pressure, date, and time are saved as CSV files, supporting traceability, documentation, and GMP-oriented workflows.
• User-Friendly Interface: The clear operating interface supports fast setup, simple parameter adjustment, and consistent operation. This is especially useful for routine sample preparation and repeated laboratory protocols.

Safety, Reliability, and Support

• Integrated Safety Features: Hielscher ultrasonic homogenizers include practical safety functions such as dry-run protection, programmable auto-stop settings, and intuitive operation. Optional sound protection boxes can further improve comfort and safety during sonication.
• Reliability and Durability: Hielscher sonicators are built for long-term operation and demanding laboratory use. Their robust design helps reduce downtime, supports consistent performance, and contributes to cost-effective operation over many years.
• Compliance and Quality Standards: Hielscher Ultrasonics is an ISO-certified manufacturer. Hielscher ultrasonicators are CE-compliant and designed to meet relevant industry and safety requirements, including UL, CSA, and RoHS requirements where applicable.
• Warranty and Expert Support: Hielscher provides application support, technical guidance, and assistance with sonicator selection, installation, commissioning, process optimization, and scale-up. This helps you choose the right ultrasonic homogenizer, probe, flow cell, or accessory for your application.

Ultrasonic Flow Cell Reactors for Larger Volume Processing

Hielscher ultrasonic laboratory devices can run continuously in 24/7 operation without overheating. Thereby, Hielscher sonicators can be reliably used for the continuous sonication using a flow cell in inline processing. By using the laboratory devices in combination with flow cell reactors, you can comfortably process larger sample volumes. In this case, the liquid is pumped into the reactor made of glass or stainless steel. For example, a UP400St can process approx. 10 to 50 litres per hour. In the flow cell, the sample is exposed to defined intense sonication before it reaches the exit of the reactor cell. In order to cool heat-sensitive material during sonication, the flow cells are equipped with a cooling jacket to increase heat dissipation.

 
The table below gives you an overview of Hielscher lab-size ultrasonicators and their processing capacities:

Frequently Asked Questions About Laboratory Sonicators

What is a laboratory sonicator?

A laboratory sonicator is an ultrasonic device used to apply high-intensity ultrasound to liquid samples. In the lab, sonicators are commonly used for sample preparation, cell lysis, tissue homogenization, particle size reduction, nanoparticle dispersion, emulsification, extraction, degassing, and sonochemical reactions.

What is the difference between a probe sonicator and an ultrasonic bath?

A probe sonicator transfers ultrasonic energy directly into the sample through a sonotrode, also called a probe or horn. This allows high intensity, precise amplitude control, and efficient processing. An ultrasonic bath applies ultrasound indirectly through the bath liquid and vessel wall, which usually results in lower and less reproducible energy transfer. For demanding sample preparation, cell disruption, dispersion, and homogenization tasks, a probe-type sonicator is typically the preferred choice. Get a deep-dive into the difference between probe-type sonicators and ultrasonic baths!

Which lab sonicator is suitable for cell lysis and tissue homogenization?

For cell lysis, tissue homogenization, protein extraction, and DNA or RNA fragmentation, the right sonicator depends on sample volume, sample number, vessel type, and required throughput. Small samples can be processed with compact probe sonicators, while larger sample volumes or routine lab workflows often benefit from digital ultrasonic homogenizers with amplitude control, temperature monitoring, and data logging. For sterile or closed-vial processing, indirect sonication systems such as the Multi-Tube Sonicator VialTweeter, the Microplate Sonicator UIP400MTP or the CupHorn can be used.

How much sample volume can Hielscher laboratory sonicators process?

Hielscher laboratory sonicators cover a wide range of sample volumes, from very small microliter samples to larger laboratory batches. Depending on the device and setup, samples can be processed in tubes, vials, beakers, multi-well plates, or flow cells. For larger volumes, a lab sonicator can be combined with a flow cell reactor for continuous inline processing.

Can I sonicate closed tubes or vials?

Yes. Closed tubes and vials can be sonicated indirectly using suitable accessories such as Multi-Tube Sonicator VialTweeter, the UIP400MTP using the vial rack or the CupHorn. This is useful when sterile processing, cross-contamination prevention, or simultaneous treatment of multiple small samples is required.

Can a laboratory sonicator process 96-well plates?

Yes. The UIP400MTP is a dedicated multi-well plate sonicator that can process any standard microtiter plates and 96-well plates. This is useful for high-throughput sample preparation, assays, screening workflows, cell lysis, DNA/RNA shearing, chromatin preparation, and protein extraction.

How can I prevent sample heating during sonication?

Ultrasonic processing can generate heat, especially during intense sonication. Sample heating can be controlled by using pulsed sonication, cooling the sample vessel, using a cooling jacket or flow cell, and monitoring the sample temperature. Digital sonicators with temperature control can pause sonication when a defined temperature limit is reached and continue once the sample has cooled.

Which sonication parameters are important for reproducible results?

The most important sonication parameters include amplitude, sonication time, pulse mode, energy input, sample volume, probe size, immersion depth, vessel geometry, and sample temperature. For reproducible results, these parameters should be controlled, documented, and repeated consistently.

Can laboratory sonication be scaled up to larger volumes?

Yes. Laboratory sonication can be scaled by selecting a higher-power ultrasonic processor, using larger probes, or moving from batch processing to continuous flow-cell processing. This allows process development in the lab and transfer to pilot or industrial ultrasonic systems.

How do I choose the right laboratory sonicator?

To choose the right lab sonicator, define your application, sample volume, vessel type, required throughput, temperature sensitivity, and documentation requirements. Hielscher can recommend a suitable ultrasonic homogenizer, probe, flow cell, sound protection box, or indirect sonication accessory based on your process.

Sonotrodes of various sizes and geometries allow for the ideal configuration

Literature / References

Find selected studies in which Hielscher sonicators are use for various sample preparation tasks such as cell disruption, DNA fragmentation, protein isolation and fractionation as well as dispersing and emulsification.

• Nico Böhmer, Andreas Dautel, Thomas Eisele, Lutz Fischer (2012): Recombinant expression, purification and characterisation of the native glutamate racemase from Lactobacillus plantarum NC8. Protein Expr Purif. 2013 Mar;88(1):54-60.
• Brandy Verhalen, Stefan Ernst, Michael Börsch, Stephan Wilkens (2012): Dynamic Ligand-induced Conformational Rearrangements in P-glycoprotein as Probed by Fluorescence Resonance Energy Transfer Spectroscopy. J Biol Chem. 2012 Jan 6;287(2): 1112-27.
• Claudia Lindemann, Nataliya Lupilova, Alexandra Müller, Bettina Warscheid, Helmut E. Meyer, Katja Kuhlmann, Martin Eisenacher, Lars I. Leichert (2013): Redox Proteomics Uncovers Peroxynitrite-Sensitive Proteins that Help Escherichia coli to Overcome Nitrosative Stress. J Biol Chem. 2013 Jul 5; 288(27): 19698–19714.
• Elahe Motevaseli, Mahdieh Shirzad, Seyed Mohammad Akrami, Azam-Sadat Mousavi, Akbar Mirsalehian, Mohammad Hossein Modarressi (2013): Normal and tumour cervical cells respond differently to vaginal lactobacilli, independent of pH and lactate. ed Microbiol. 2013 Jul; 62(Pt 7):1065-1072.
• Joanna Kopecka, Giuseppina Salzano, Ivana Campia, Sara Lusa, Dario Ghigo, Giuseppe De Rosa, Chiara Riganti (2013): Insights in the chemical components of liposomes responsible for P-glycoprotein inhibition. Nanomedicine: Nanotechnology, Biology, and Medicine 2013.
• Fernandes, Luz; Santos, Hugo; Nunes-Miranda, J.; Lodeiro, Carlos; Capelo, Jose (2011): Ultrasonic Enhanced Applications in Proteomics Workflows: single probe versus multiprobe. Journal of Integrated OMICS 1, 2011.
• Priego-Capote, Feliciano; Castro, María (2004): Analytical uses of ultrasound – I. Sample preparation. TrAC Trends in Analytical Chemistry 23, 2004. 644-653.
• Welna, Maja; Szymczycha-Madeja, Anna; Pohl, Pawel (2011): Quality of the Trace Element Analysis: Sample Preparation Steps. In: Wide Spectra of Quality Control; InTechOpen 2011.