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Facility

 

The laboratory houses the essential equipment/facility for studies on surface modification, polymer thin film processing, surface characterization, and cells/micro-organisms attachment and proliferation, biofilm development and associated bio-corrosion.

Surface modification:

UV/Ozone chamber

High vacuum (< 10 mTorr) dessicators

Micro-manipulator

Glove box/bags

Dry box/humidity chamber

Polymer thin films/coatings processing:

Spin coater

     Vacuum ovens

     Microscope heating stage/plate/temperature-controller

Cells/micro-organisms attachment, biofilm development and bio-corrosion:

Various flow chamber systems constructed out of square or rectangular glass tubes

     Peristaltic pumps with various flow rate controlling heads

     Various incubators (with and without CO2) and water bathes

Surface characterization:

Contact Angle Goniometer with Video System:  Rame –Hart, Inc, Model 100-00, including a CCD Camera and lens assembly to provide excellent contrast and sharpness.  The system is connected directly to a computer for a permanent recording and simultaneous viewing.

Contact mechanics apparatus: A home-built apparatus with a 3-directional micro-manipulator that allows precise positioning of contact area and the displacement in the z-direction. The force is measured with an analytical balance with an accuracy of 0.1 mg and directly input to an excel file. A CCD camera connected with an InfinitetubeTM in-line assembly unit to allow the contact area to be displayed on a computer monitor screen and the entire loading-unloading process easily recorded

Ellipsometer:  Rudolph Instrument, Model 439, capable of measuring film thickness down to 2 Angstroms when a Si-wafer is used as the support.

Optical Microscopes:  (a) An inverted microscope from Olympus, model (IX-70) with video attachment and computer connection.  This microscope is capable of imaging in the bright-field/dark-field, polarized light, reflected and transmitted light, phase contract, differential interference contrast (DIC) and fluorescent.  (b) A portable reflected light microscope video system, InfinitetubeTM in-line assembly unit from Edmond Scientific, capable of video imaging of real time processes at any desired position or angle. (c) A 2000X Metallurgical microscope with Trans/EPI light & 9.0 MP Camera.  This microscope is ideal for examining metallic surfaces as well as live imaging of biological behaviors and biofilm formation on metallic surfaces.

Scanning Probe Microscopes (SPM): Metrology 2000 AFM (Molecular Imaging) includes contact mode, tapping mode and pulse-force mode.   

Scanning Electron Microscope-Energy Dispersive Spectroscopy (SEM/EDS) can be accessed within the department.

Research Lab for Surface Modification and Materials