Research - Khalid Tantawi

Undergraduate Researcher position available at Dr. Tantawi’s lab for Fall 2024.

Tasks: use molecular dynamic simulation software to simulate lipid bilayer membranes of different combinations. Conduct experimental works such as Raman spectroscopy, contact angle measurement, and electrochemical impedance spectroscopy. Please contact Dr. Tantawi for more details at khalid-tantawi@utc.edu

Khalid Tantawi Research on characterizing electrophysiology of chemostressed malignant cell membranes

Electrical Properties of chemo-stressed Lipid Bilayer Membranes.

Images above: A porous silicon sample with straight uniform pores as deep as 15 micrometers and opening diameters of 1.5 micrometers.

Other Research Areas (Click on research area to go to page):

Advanced Manufacturing: Smart Manufacturing; Industrial Internet of Things (IIoT); Intelligent Industrial Robotics ( NSF Grant numbers 1801120 and 2000685), and Mechatronics
Micro-Electro-Mechanical Systems (MEMS):
- Characterization of Transmembrane Proteins: Keywords: Epithelial Sodium Channel (ENaC) protein; Lipid Bilayer Membranes; Atomic Force Microscopy
- Microfluidics: Photodefinable Glass is used to fabricate microstructues
- Ultra sensitive Sensors and Microstructures made in Porous Silicon

Grants:

NSF Award 1801120 of $525,000 (Principal Investigator)
NSF Award 2000685 of $198,065 (Principal Investigator)
NSF Award 2130658 of $450,000 (Co-Principal Investigator)

Research in the News:

“New Transmembrane Protein Support Structure Created” appeared in Newswise, Nanowerk, and Science Daily websites on February 4, 2013 highlighting the research results of Khalid Tantawi,

Link to the news article on Science Daily: http://www.sciencedaily.com/releases/2013/02/130204094516.htm

Videos:

1. Processing Photo definable Glasses: Exposure to mid UV light, followed by a two step baking stage, then etching in HF acid. and finally an annealing stage. Nano and Micro Devices Center, University of Alabama in Huntsville. Produced by Khalid H. Tantawi and John D. Williams.

2. Basic MEMS Fabrication: Video Taken and produced by undergraduate students Benjamin Burns, Josh Killingsworth, Roslyn Brown, and Jonathan Bradford, starring Khalid Tantawi. Video produced in 2010.

3. Porous Silicon Processing: Producing porous silicon with hole diameters 1000 times less than the width of a human hair. Produced in Nano & Micro Devices Center. University of Alabama in Huntsville. Porous Si is biocompatible, and is used in optoelectronics due to its florescence, it is also very active chemically. Khalid Tantawi in the news article of Oakwood University: http://www.oakwood.edu/zPublic/public-relations/oakwood-magazine/OU-Magazine-Winter-14.pdf

Major Research Equipment available at Dr. Tantawi’s Lab:

- Atomic Force Microscope: Quesant
Potentiostat/Galvanostat: Versastat 3-460 by Princeton Applied Research with capability to perform electrochemical impedance spectroscopy, electroplating, and electrochemical etching with a maximum current of +/- 2 A, and a current resolution of 200 nA and a voltage resolution of 300 nV and a frequency range of 10 µHz to 1 MHz.
Raman Spectrometer system: PeakSeeker^TM system with a signal-to-noise ratio of 250:1 and detection capability of wavenumbers 3000 to 200 cm^-1 at a resolution of 9 cm^-1 powered by a 785 nm laser
Optical Microscope with digital image capturing capability: RS Microscope system with a 10x eye lens and up to 40x objective, equipped with a 1.3 MP camera.
Three-dimensional printing machines: Monoprice IIIP printers that use Fused Filament technology capable of resolutions down to 100 um and a positioning accuracy of 4 to 12 um, as well as other 3D printers.

Equipment available at the Mechatronics Department:

Milling and Machining: The department has its own Denford MicroMill Three-axes milling machine with a resolution of 10 micrometers.
Intelligent high-Precision robot: ABB Yumi collaborative robot for pharmaceutical and electronic applications with a payload capability of 500 grams and positioning repeatability of 20 micrometers.
Drone with thermal imaging capability: DJI Inspire 1 drone equipped with a ZENMUSE XT thermal camera with a thermal sensitivity of less than 50 mK at f/1.0, and a ZENMUSE X3 4K 12 MP camera.

	Denso VS087A4	ABB Yumi
Weight:	51 kg	38 kg
Payload:	7 kg	0.5 kg
Repeatability:	30 micrometers	20 micrometers
Maximum reach:	905 mm	559 mm
Number of axes:	6	14 (7 per arm)
Maximum wrist torque:	16.2 N.m around J5 6.86 N.m around J6	0.64 N.m around J5 0.23 N.m around J6
Maximum moment of inertia	0.450 kg.m² around J5 0.100 kg.m² around J6	0.012 kg.m²around J5 0.009 kg.m² around J6
Maximum TCP speed:	11,000 mm/s	1,500 mm/s
Cycle Time:	0.34 Sec (1 kg for 300 mm at 25 mm height)	0.86 sec (0.5 kg for 300 mm at 25 mm height)