Electrical Transport Measurement
This department has a DC transport rig. The resistance of a material can be measured using a four-probe technique as a function of temperature (300-77K) both in zero field and in presence of a 0.8 T magnetic field. A homemade liquid nitrogen cryostat is used for Colossal Magnetoresistance (CMR) and superconductivity studies. Also, high resistivity (e.g. polymer, ceramic, etc.) measurement facilities are available. Besides these, two Impedance Analyzers of model Wayne-Kerr 6500B (20 Hz to 120 MHz) are available for AC electrical and magnetic measurements.
This department has a computer interfaced ferroelectric loop tracer system. The polarization vs electric field hysteresis loops at different temperatures can be measured directly using this loop tracer. Beside this, the leakage current density can also be measured as a function of the applied electric field.
UV visible spectrometer
An UV-2600 plus spectrophotometer is available in this department. By using the optional integrating sphere, the measurement wavelength range of the UV-2600 can be extended to the near-infrared region of 1400 nm. A dual-beam UV-VIS spectrophotometer is also available in the department. This instrument is capable of analyzing the optical absorbance and transmittance of thin film and nanoparticles.
High power Xenon Lamp for Photocatalytic experiment
Photocatalytic experiments are available for a wide range of synthesized materials both at bulk and nanoscale. A 500 W Xenon lamp is installed and incorporated with required measurement facilities.
A gas chromatograph (Shimadzu, Japan) is available to measure the various components of gas particularly the amount of Hydrogen produced by water splitting.
Closed Cycle Cryocooler
Two sets of Close Cycle Cryocoolers are available at the department. This apparatus is used for low temperature (300 K-10K) transport and magnetic measurements. One cryocooler is attached to a Vibrating Sample Magnetometer (VSM) and the other is used in the transport measurements.
This magnetometer is used for the measurement of magnetic anisotropy (high temperature) and has a sensitivity of 10-9 N-m.
Vibrating Sample Magnetometer
A sensitive (10-5 emu) vibrating sample magnetometer (VSM) is available in this department.
A capacitively coupled plasma polymerization system has been fabricated locally in this department. It works at line frequency and RF frequency at a chamber pressure of about 10-1 Torr. It is used to deposit thin organic films onto different substrates.
Extrusion and Injection Molding
Polymer blends and composites, which are emerging as advanced polymeric materials for their superior properties and have potential applications, are prepared with these machines.
Plasma Surface Modification Unit
Plasma surface modification technique has been established to functionalize nanomaterials especially carbon nanotubes.
Chemical Bath Deposition Setup
To deposit inorganic thin films, a chemical bath deposition (CBD) unit is established. Using this setup semiconducting thin films can be deposited onto different substrates controlling different deposition parameters.
Nanoparticle/Nanorods Synthesis Setup
Microwave-assisted hydrothermal unit has been fabricated locally to synthesis nanoparticles for the advanced technology, especially ZnO nanorods.
Ultrasonic Bath and Probe Sonicator
Both ultrasonic bath and probe sonicator (Model: 150 V/T, 150 W, 20 Hz, Biologics Inc., USA) are available in the department, which can be used to clean different substrates and to disperse nanoparticles.
Hot Air Oven
A hot air oven is available to dry and heat samples up to 300 °C.
High Temperature Furnace
This department has a couple of tubes and muffles furnaces. The maximum temperature that can be achieved in these furnaces is1400° C. A high temperature furnace controlled with a modified atmosphere (inert gases) is also available.
Thickness measurement of transparent thin films is possible by interferometric technique.
Hydraulic pressing machine
Several hydraulic press machines are available in this department for making pellets, toroid shaped, polymer blend and composite samples.
DC Electrical Measurement Unit
DC electrical measurement setup is available where a regulated DC power supply (Model: 6545A, Agilent, Japan)and Electrometer (Keithley 197A, Keithley Instruments, USA) is used to measure current, resistance and voltage across polymeric materials.
Vacuum Evaporation Technique
Vacuum Evaporation Technique is available for the deposition of metallic thin films using an Edward coating unit (Model 306) and a High Vac evaporation unit.
Dip Coating technique for thin film deposition
A Micro-controller Controlled, Multi-vessel Dip Coating System for the deposition of thin film is available in the department. This is a state-of-the-art instrument that is very sophisticated, versatile, fully Micro-Controller controlled and user-friendly. This unit is also capable of synthesis of thin film by Successive Ion Layer Adsorption and Reaction (SILAR) Coating.
Nanoparticle and nanostructured materials synthesis technique
This department has facilities for the synthesis of zero-dimensional nanostructured materials and two-dimensional graphene.
High-speed centrifuge machine
The table top high speed (a maximum speed of 16,500 rpm) centrifuge machine is capable of separating the nanostructured materials from the fluid.
Contact Angle meter
A contact angle measurement system is also available in the department for measuring the Dynamic Contact Angle as well as Surface Parameter.
An Attenuated Total Reflection-Fourier Transform Infrared (ATR-FTIR) (Shimadzu IRSpirit) spectrophotometer is available. This instrument includes 23 application-specific workflows that can be utilized without involving any complicated parameter setup process.
Photocatalytic properties measurement chamber
A Photocatalytic properties measurement chamber is available for studying the photodegradation performance of thin films and nanoparticles.
Electrochemical Workstation/Potentiostat/Galvanostat with EIS
A CS310 electrochemical workstation (corrtest, china) is available in the department. It is a comprehensive research platform for corrosion, batteries, electrochemical analysis, sensor, life science and environmental chemistry, etc.
Optical Polarizing Microscope
This department has two polarizing microscopes.
Crystal growth set-up by solution growth technique is available in the department.
Spray Pyrolysis Deposition Unit
Spray Pyrolysis set-up is available for the deposition of high-quality thin films.
Inverted Phase Contrast Fluorescence Microscope
Inverted phase contrast fluorescence microscope (IX 73, Olympus, Japan) attached with charged coupled camera-CCD (DP22, Olympus, Japan) is available to investigate the static and dynamic nature of giant unilamellar vesicles (GUVs) and cells.
Irreversible Electroporation (IRE) instrument
The microcontroller-based IRE device with the high voltage (100 – 800 V/cm) power supply is used for the ablation of tumor/cancer cells along with the rupture of giant unilamellar vesicles.
Fluorescence Spectrometer (F-7000, Hitachi, Japan) is used to investigate the leakage of internal fluorescent content from the inside of vesicles to the outside environment.
Refrigerated centrifuge (NF 1200R, NUVE, Turkey) controls a wide range of temperatures from -9 °C to +40 °C. It is used for biological samples. The maximum speed for Angle Rotor is14000 rpm.
Diaphragm Vacuum Pump
Diaphragm pump (MVP 015-2, PFEIFFER, Germany) connected with a desiccator (DURAN, Germany) is used for fine drying the lipid samples.
The Avanti Mini-Extruder is used for preparing large unilamellar vesicles (LUVs).
Dual channels compact peristaltic pump (SP-Minipump, Good pump, China) is used to flow the solution with a flow rate of 0.0024-190 mL/min. It is generally used for the purification of lipid vesicles.
Tall Freezer (SS), SIEMENS No Frost (GS36NVI30G) is used to preserve the lipids at -26 °C. In addition, a refrigerator is used to preserve the chemicals and reagents in the laboratory.
The drying oven Ecocell (MMM Group, Germany) is used for drying various types of goods. The chamber volume is 111 L and the temperature range is 5 °C - 300 °C.
The incubator controls the temperature at 37 °C precisely. It is used to grow the lipid vesicles and cells in the laboratory.
Vortex Mixers both Test Tube and Flat Head (250VM and 260VM, Hwashin Technology Co., South Korea) are used to vortex the biological samples.
Magnetic Stirrer with Hot Plate
A motor drive magnetic stirrer (MSH 420, Boeco, Germany) with an all-in-one glass-ceramic hot plate is used for analyzing the biological samples fromambient temperature to 450 °C.
A pH bench top meter (BT-675, Boeco, Germany) is used to control the pH of buffer preciously.
A bath sonicator (POWERSONIC 520, Hwashin Technology Co., South Korea) is used to clean the glass vial precisely. It is also used to mix the samples.
Nitrogen Gas Cylinder with Multistage Regulator
A nitrogen gas cylinder with multistage regulator (Linde, Bangladesh) is used to dry the dissolved chloroform from the lipid solution.
A fume hood (FH 1200 E, Biobase, China) is used to protect the lab environment and operator during general chemical applications.
An analytical balance (4 digits) with a readability ranging between 0.0001g - 220 g is used to measure the sample correctly.
Modeling and Simulation facilities
The Weather Research and Forecasting (WRF) Model is a next-generation mesoscale numerical weather prediction system designed for both atmospheric research and operational forecasting applications. It allows researchers to generate atmospheric simulations based on real data (observations, analyses) or idealized conditions. WRF model is set up in the Atmospheric lab, which serves a wide range of meteorological applications across scales from tens of meters to thousands of kilometers. It is used to simulate and forecast different weather and climate phenomena like severe Nor’wester (thunderstorms), tornadoes, lightning, cyclone, mesoscale convection and monsoon rain in Bangladesh and its surroundings.
High-End Servers and Online Storage
This department has two Dell PowerEdge servers: 4U rack-mounted server (Processor: 80, RAM: 192GB, HDD: 3.3 TB) and 2U rack-mounted server (Processor: 32, RAM: 128GB, HDD: 7.2 TB), and data storage facilities (48 TB SATA HDD). Different types of weather simulations such as tropical cyclones, severe thunderstorms, mesoscale convective systems, etc. can be performed and analyzed with these facilities.
Blitzortung Lightning Detector
This department has a Blitzortung Lightning Detector. Blitzortung is a project run by Germany that connects a network of hundreds of lightning sensors around the world to track lightning strikes within seconds of their striking the surface of the earth.