The Stream In-Situ TEM liquid/biasing solution provides precise control of liquid flow and pressure measurements to extend chemistry experiments under controlled experimental conditions.
1. Ensure sample-liquid interaction: The well-defined microfl uidic channel ensures that the sample of interest and liquid always interact.
2. Dissolve unwanted bubbles: Bubbles can be fl ushed away from the imaging area or dissolved, enabling a greater control over experimental conditions.
3. Introduce fresh solution: The controlled fl ow in the imaging area allows to maintain a constant and directional fl ow, enabling a continuous fresh solution.
4. Ease of use: The integrated Liquid Supply System greatly simplifi es the operation of the system and improves user friendliness.
1. Liquid purging and thickness control: Perform high resolution imaging, meaningful elemental analysis and electron diffraction by minimizing the liquid thickness or by purging the Nano-Cell
2. Liquid fl ow measurement: Gain full control over the dynamics of your liquid experiment via flow control.
3. Mass transport control: Explore the effect of fl ow kinetics on the morphological and electrochemical changes of your sample.
The modular design of the sample bars avoids cross-contamination and clogging, and the components are easy to clean and upgrade.
The integrated liquid supply system simplifies viewing the system and allows for inert gas purging for ease of use and reproducibility.
Minimized liquid control allows precise control of layer thickness and pressure-driven flow direction.
The core of the Stream system is our patented Nano Cell, which relies on a dual-chip technology. We revolutionize the approach to liquid phase experiments by introducing the liquid inlet and the outlet directly on the bottom chip. A combination of the spacers surrounding the inlet, outlet and the top chip define a microfl uidic channel, ensuring a sample-liquid interaction.
As a result, the system gives you the unique ability to independently control flow rate and liquid thickness while heating or biasing your sample.
StreamModular. Stable. Reliable.
 Exchangable Tubing & Tip
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 Mechanical Stability
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 Ultra Vacuum Performance
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The in situ TEM Sample Holder provides the platform for connecting the pressure-based liquid pump to the Nano-Cell. The modular design allows for each vacuum component to be either cleaned or replaced which ensures each new experiment is free from cross-contamination. The highest precision fabrication techniques were used to machine the in situ TEM Sample Holder to perfectly fit the microscopes goniometer.
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integrated system，easy of use -
High resolution imaging -
Reliable and reproducible results
| Liquid Heating | Liquid Biasing | |
| Resolution | ≤ 3 Å | ≤ 3 Å |
| Liquid thickness control | Yes, via inlet and outlet liquid pressure control | Yes, via inlet and outlet liquid pressure control |
| Liquid modes | Static, fl ow (infusion, withdrawal) | Static, fl ow (infusion, withdrawal) |
| Liquid fl ow measurement | Yes, via inlet liquid fl ow meter | Yes, via inlet liquid fl ow meter |
| Liquid pressure safety limit | Yes | Yes |
| Temperature range | RT to ≤ 100 °C | NA |
| Electrodes | 4-point probe based microheater | 3 |
| Voltage range | N/A | - 10 V to +10 V |
| Current range | N/A | From pA to mA |
| AC impedance frequency range | N/A | 10 uHz - 1 MHz |
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Batteries -
Electrocatalysts -
Corrosion -
Materials synthesisand growth -
Cell biology -
Life science
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"We are very impressed with the Stream Liquid Supply System (LSS), which is very easy to set up and use. In addition, the integrated system features make transportation between labs simple and safe. This is very useful for core facilities like ours."
XueHai Tan University of Alberta Nano Labs -
The DENSsolutions Stream System not only provides a useful means to study a wide range of dynamics in solution, but also enables systematic studies of the effect of the chemical environment on the corresponding reactions through precise control of the flow rate, liquid composition and other significant parameters.”
Prof. Dr. Ningyan Cheng Associate Professor | Anhui University
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"We are very impressed with the Stream Liquid Supply System (LSS), which is very easy to set up and use. In addition, the integrated system features make transportation between labs simple and safe. This is very useful for core facilities like ours."
XueHai Tan University of Alberta Nano Labs -
The DENSsolutions Stream System not only provides a useful means to study a wide range of dynamics in solution, but also enables systematic studies of the effect of the chemical environment on the corresponding reactions through precise control of the flow rate, liquid composition and other significant parameters.”
Prof. Dr. Ningyan Cheng Associate Professor | Anhui University
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