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Faculty of Engineering Science

Biofabrication – Prof. Dr. Leonid Ionov

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Equipment

Our lab counts with all the necessary equipment for polymer processing and analysis, as well as for cell culture studies with several different type of mammalian cells. 

Thermogravimetric Analysis (TGA) 

The TG 209 F3 Tarsus from Netzch is used to obtain knowledge about the thermal stability of polymers and their composition. 

Responsible persons: Pavel Milkin - Muzaffar Maksumov

Differential Scanning Calorimeter (DSC) 

The Mettler Toledo DSC device is used to determine the thermal properties of the processed and synthesized polymers. It measures the enthalpy changes of the samples based on their physical and chemical properties as function of temperature.

Responsible persons: Pavel Milkin - Gissela Constante

Gel Permeation Chromatographer (GPC)

Our GPC from PSS is used to determine the molecular weight of the synthesized polymers.

Responsible persons: Neha Tiwari - Sarah Lentz

Zeta sizer

The Zeta sizer Ultra from Malvern Panalytical with the titrator unit is used for the measurement of particles and molecular size, particle charge, and concentration.

Responsible persons: Sarah Lentz - Neha Tiwari

Spectroscopic investigations

TriStar² LB 942 Modular Monochromator Multimode Reader with absorbance, fluorescence and luminiscence modes.

Responsible persons: Ali Yousefinejad - Indra Apsite

Surface modification

Programmable MiniFlecto®  plasma clear with two gas connections.

Responsible persons: Indra Apsite - Gissela Constante

Mechanical/rheological testing

Combined Rheometer | DMA: MCR 702 MultiDrive with controlled temperature, linear drive for DMA measurements in strain, torsion, three-point bending and cantiliver modes.

Responsible persons: Pavel Milkin - Andres Posada

Freeze-dryer Labconco

Our lab counts with a lyophilizer, which dries the materials by freezing, allowing the sublimation of water.

Responsible persons: Neha Tiwari - Hossein Goodarzi

3D printers

3D Discovery Regen-Hu

3D Discovery printer inside of the biosafety cabinet (RegenHU, Switzerland). It can be used for printing hydrogels, thermopolymers, and melt-electrowrite polymers. It counts with multiple printheads.

Responsible persons: Gissela Constante - Zhander Soreño

Melt-electrowriting - 3D Printer of Thermoplastic polymers

Dispensing 3D printer for printing of thermoplastics with four heated pneumatic dispensers. Maximum temperature is 350 ° C that allows printing of most commercial and synthetic polymers. Commonly polymers are printed on heated stage (max T = 80°C). Pressure is electronically controlled in the range between 0  and 10 Bar. Printer is equipped with high-voltage power supply (30kV), which allows melt electrospinning writing. 

Responsible persons: Gissela Constante - Waseem Kitana

Melt-electrowriting - 3D Printer of Thermoplastic polymers

Dispensing 3D printer for printing of thermoplastics/hydrogels with one heated pneumatic dispenser. Maximum temperature is 100 ° C. Pressure is electronically controlled in the range between 0 Bar and 10 Bar. Printer is equipped with high-voltage power supply (30kV), which allows melt electrospinning writing. 

Responsible persons: Gissela Constante - Waseem Kitana

DLP Stereolithography 

DLP(LCD) stereolithography 3D printer Wanhao Duplicator D7 Plus

Responsible person: Hossein Goodarzi

Fiber spinning 

Electro-spinning  

Electrospinning device for simultaneous spinning of two different materials with multiple syringes for mass production. Our e-spinning is equipped with high-voltage power supply (+/-30kV).

Responsible persons: Indra Apsite - Gissela Constante

Extruder  

Noztec Touch Extruder device to fabricate filament from polymer pellets for 3D printing purposes.

Responsible persons: Gissela Constante - Andrés Posada

Touch-spinning

Touch-spinning device used for producing uniaxially oriented fibers from different polymer materials.

Responsible persons: Waseem Kitana - Gissela Constante

Cell culture laboratory

We own a well-equiped cell culture lab. We make studies of cell compatibility, differentiation and functionality of the biofabricated scaffolds.

Responsible persons: Katharina Bauer

Fluorescence Microscope 

Fluorescence Microscope Nikon Eclipse Ti2 is provided with incubation system to analize in vivo the cell behavior.

The microscope also counts with a perfect focusing system (PFS).

Responsible persons: Indra Apsite - Waseem Kitana

Surface characterization

Contact angle 

The contact angle device "Krüss Drop Shape Analyzer - DSA25" is used for wetting investigations and measurement of surface free energy.

Responsible persons: Gissela Constante - Ali Yousefinejad

Potentiostat

The Interface 1010E and 5000E are general purpose potentiostats that runs basic physical and electroanalytical techniques such as cyclic voltammetry, chronoamperometry, chronopotentiometry, pulse voltammetry and square wave voltammetry.  

Responsible persons: Pavel Milkin 


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