Leilei Shi
Facilities
Nikon Ti2-A Intelligent Inverted Microscope
The ECLIPSE Ti2-A Intelligent inverted microscope delivers an unparalleled 25mm field of view (FOV). With this incredible FOV, the Ti2-A maximizes the sensor area of large-format CMOS cameras without making compromises, and significantly improves data throughput. The Ti2's exceptionally stable, drift-free platform is designed to meet the demands of super-resolution imaging while its unique hardware-triggering capabilities enhance even the most challenging, high-speed imaging applications. Furthermore, the Ti2's unique, intelligent functions guide users through imaging workflows by gathering data from internal sensors, eliminating the possibility of user errors. In addition, the status of each sensor is automatically recorded during acquisition, providing quality control for imaging experiments and enhancing data reproducibility.
Furthermore, the microscope is equipped with the Photometrics Prime BSI sCMOS camera, which delivers the perfect balance between high resolution imaging and sensitivity with an optimized pixel design and near perfect 95% Quantum.
In combination with vibration isolation table, Faraday cage, epi-Fluorescence components, and Nikon's powerful acquisition and analysis software, NIS-Elements, the Ti2-A microscope platform is a total innovation in imaging.
The Superior Precision Electrical Impedance Measurement System
The Zurich Instruments HF2LI (high-frequency, 2 inputs) is a digital lock-in amplifier covering the frequency range between DC and 50 MHz. It features 2 physical input channels so that it can replace 2 devices in many measurement setups. The 128-bit digital signal processing delivers superior precision thus boosting both the noise performance and the dynamic reserve. With these unprecedented capabilities, the HF2LI brings lock-in amplification to a new level and enables new applications in a frequency range that was previously tied to analog instrumentation. The computer is connected by a high-speed USB interface, which allows data acquisition at high rates. The HF2LI is delivered with a fully-featured graphical user interface and a choice of programming interfaces that greatly add to the usability of the instrument.
In addition, the HF2LI in the lab is equipped with the HF2TA current amplifier, HF2LI-MF multi-frequency module, and FH2LI-PID quad PID module. This setup enables fully integrated current measurements within the control software, offers the capability to demodulate up to six frequencies simultaneously, and includes two programmable digital PLLs within the lock-in amplifier.
Fluigent Flow Controller and Sensor
The Flow EZ™ is the most advanced system available for pressure-based flow control. The compact flow controller stands near the microfluidic device, allowing the user to minimize bench space use without the need of a PC.
The FLOW UNITs are bidirectional flow sensors compatible in stand-alone configuration and using software with the LineUp™ controllers, or with any other microfluidic control system such as the MFCS™ series using the Flowboard hub. The FLOW UNIT allows for pressure regulation through the DFC (Direct Flow Control) algorithm in order to monitor and control the system in flow rate instead of pressure values. The S and M+ flow units in the lab allows effective flow rate accurately control in the range of 400 nL/min - 2 mL/min.
Keithley 2220-30-1 Dual Channel DC Power Supply
Keithley 2220-30-1 dual-channel programmable DC Power Supplies combine 2 channels of output power to cost-effectively characterize and test a wide range of devices, circuit boards, modules, and products that require more than one power source. The power supply provides 2 channels, with each channel capable of outputting up to 30V and up to 1.5A. It offers an excellent combination of performance, versatility, and ease of use to maximise the information from characterization or test as quickly and as easily as possible. They perform as effectively in automated test systems as they do in bench applications.
SDG6022X Pulse/Arbitary Waveform Generator
SIGLENT’s SDG6000X is a series of dual-channel Pulse/ Arbitrary Waveform Generators that feature up to 500 MHz bandwidth, a maximum sample rate of 2.4 GSa/s and 16-bit vertical resolution. They also include proprietary TrueArb & EasyPulse technology that help to solve the weaknesses inherent in traditional DDS generators when generating arbitrary, square and pulse waveforms. In addition, the SDG6000X is a multi-function device which can generate Noise, IQ signals and PRBS patterns. These features enable the SDG6000X to provide a variety of high fidelity and low jitter signals, meeting the growing requirements of complex and intensive applications.
Keysight 43361A Digital Multimeter
Keysight’s Truevolt Digital Multimeters (DMMs) offer a full range of measurement capabilities and price points with higher levels of accuracy, speed, and resolution. Get more insight quickly Truevolt DMM's graphical capabilities such as trend and histogram charts offer more insights quickly. Both models also provide a data logging mode for easier trend analysis and a digitizing mode for capturing transients. Measure low-power devices The ability to measure very low current, 1 μA range with pA resolution, allows you to make measurements on very low power devices. Maintain calibrated measurements Auto calibration allows you to compensate for temperature drift so you can maintain measurement accuracy throughout your workday.
SDS2204X Plus Super Phosphor Oscilloscopes
SIGLENT’s SDS2004X Plus Super Phosphor Oscilloscope has the bandwidths of 200 MHz, maximum sample rate of 2 GSa/s, maximum record length of 200 Mpts/ch, and up to 4 analog channels + 16 digital channels mixed-signal analysis ability. The SDS2000X Plus series employs SIGLENT’s SPO technology with a maximum waveform capture rate of up to 120,000 wfm/s (normal mode, up to 500,000 wfm/s in Sequence mode), 256-level intensity grading display function plus a color temperature display mode. An impressive array of measurement and math capabilities and options for a 50 MHz waveform generator. The large 10.1’’ capacitive touch screen supports multi-touch gestures, while the remote web control, mouse and external keyboard support greatly improve the operating efficiency of the SDS2000X Plus.
Benchtop pH/Conductivity-Meter Kit
The APERA Instruments PC910 performs accurate pH measurements and is a reliable laboratory meter. User-friendly operation thanks to graphical instructions and description. Multilingual operating system (English, German, Chinese, Italian and Spanish). Large, illuminated LCD displays both pH and temperature, plus additional measurement and calibration information. Quick and easy 1 to 3 point calibration with automatic buffer detection. With built-in microprocessor chip that provides the meter with intelligent features such as automatic calibration, automatic temperature compensation, function setting, self-diagnostics and data logger.
Thermo Scientific Heraeus Megafuge 8 Benchtop Centrifuge
The Thermo Scientific Megafuge 8 Centrifuge is extremely versatile and user-friendly with innovative auto-lock rotor exchange technology, imbalance detection, and biocontainment sealing options. With one-touch operation, low noise levels, a highly visible backlit display, and conformance to the latest clinical and safety standards, the Megafuge 8 is an easy-to-use unit, applicable to any lab. Reach maximum speeds up to 16,000 RPM with a maximum RCF of 24,328 x g. The Megafuge 8 is ideal for clinical and research applications. This rotor reaches a maximum speed up to 4,500 RPM with maximum RCF of 3,260 x g.