.Research Areas:

1. 3D Bioprinting for Tissue Engineering and Regenarative Medicine: my most recent research is to apply inkjet and microextrusion bioprinting technology to tissue engineering and regenerative medicine to address the need for tissues and organs suitable for transplantation.

2. Laser Additive Manufacturing: my current research is dedicated to manufacture and remanufacture parts through direct energy deposition, laser powder bed fusion technology. Direct energy deposition (laser cladding) is an additive manufacturing process that uses 3D CAD data as a digital information source and energy in the form of a high powered laser beam (usually an ytterbium fiber laser) to create three-dimensional metal parts by fusing fine metallic powders together. In my research laser powder bed fusion technology is applied to remanufacture the die cutter and blade in the rotary cutting die equipment, piston head, exhaust valves and valve seat in the marine engine.

3. Sustainable Manufacturing: my main research is dedicated to improve the economic and environmental performance of industrial productions from both material and energy perspectives. Current research focuses on Life Cycle Assessment (LCA), cost benefit optimization, environmental emission control (including greenhouse gas emission mitigation, toxic chemical emission management, and solid waste recycling), clean energy supply (Solar, Wind, Fuel Cells), and manufacturing energy efficiency improvement.

4. Environmental Sustainability: eveloping systematic methods and novel techniques to understand and mitigate the environmental impact of nanotechnologies, particularly from the nano-particle emissions and the associated impacts on the environment and human health.

5. Nano-materials/Structure for Energy Conversion and Storage: Novel nano-materials and nano-structure are developed for improving Lithium-ion battery performance by using silicon nanowire based anode.

6. Advanced Manufacturing: CAD/CAM, CNC, 3D Printing for plastics, Rapid Prototype.

 

Research Facilities:

1. MicroFab PH-46 Four fluid Microdispensing Subsystem

PH-46-LG2-SM2-AT-ST1-H:
Four Fluid Printhead assembly. Populated with four (4) fluid
channels:
• two (2) with 20 mL reservoirs, two (2) with 2mL reservoirs;
• one (1) with stirring option 130 -1,000 rpm;
• and heated device holder block option (to 50C).

MJ-AT-01:
Threaded fitting microdispensing device, diameter orifice in microns, 30-80 μm.

CT-M3-02:
JetDrive™ III controller, including command set and Windows based stand-alone control program, JetServer™.

CT-PT4:
Four channel Pressure / Thermal Controller

CP-01:

Pneumatics control channels

CM-VSU-03:
Basic Optics Subsystem: USB CCD camera, power supply, lens, fine focus, mounting block. 640x480 resolution. Specify 50, 90, or 150 mm working distance.

 

2. VWR® symphony™ Air-Jacketed CO2 Incubators Model 5.3A

 

CO2 Range:
0-20%.

Exterior dimensions:
63.7W x 86.7H x 76.6D cm (25 x 34 x 307/32").

Interior dimensions WxDxH (mm):
47W x 60.7H x 53D cm (181/2x 2329/32 x 2029/32").

Temperature control:
±0.1°C

Temperature uniformity:

±0.3°C at 37°C (99°F)

CM-VSU-03:
Basic Optics Subsystem: USB CCD camera, power supply, lens, fine focus, mounting block. 640x480 resolution. Specify 50, 90, or 150 mm working distance.

 

 

 

 

 

3. Eppendorf® Multipurpose Centrifuges 5804R with 4x100mL Cell Pack

 

Exterior dimensions:
64W x 55D x 34H cm

Maximum capacity:
4x100mL.

Maximum RCF:
20,817 x g.

Operating Range:
-9 to 40°C

Weight:

80 kg (176 lb)

 

 

 

 

 

 

 

 

4. VWR® Ultra-Low Temperature Upright Freezers

 

Volume:
490 L (17.3 cu. ft.)

Exterior dimensions:
85W x 198H x 94D cm (331/4 x 78 x 37")

Temperature range:
–86 to –50°C (–123 to –58°F)

Amps/Breaker:
16/20

Weight:

358 kg (790 lbs.)

 

 

 

 

 

 

 

 

 

5. VWR® Freestanding Countertop Freezers

 

Volume:
37 L (1.3 cu. ft.)

Exterior dimensions:
23.75W x 24H x 20.375D inches

Temperature:
–20°C

Defrost:
Auto

Weight:

106 lbs

 

 

 

 

 

 

 

 

 

6. Labconco® REDISHIP Purifier® Logic®+ Class II A2 Biosafety Cabinets with Base Stand

 

Sash opening :
10"

Width:
6'

Exterior dimensions:
78.3W x 31.2D x 65.4"D

Nominal Avg. Downflow (FPM):
55+/-5

Nominal Avg. Inflow (FPM):
55+/-5

Motor HP:
3/4

 

 

 

 

 

 

 

 

 

7. AmScope IN200B-9M Inverted Tissue Culture Microscope

 

Focusing Range:

1-9/16" (40mm)

Objectives:

4X (0.1 NA), 10X (0.25 NA), 25X (0.4 NA), 40X (0.60 NA)

Sensor Size:

5.825x4.369mm

Pixel Size:

1.67

Resolution:

9.0MP

Eight magnification settings:

40X, 80X, 100X, 200X, 250X, 400X, 500X & 800X
25 lbs

Head: trinocular anti-mould viewing head inclined at 30 degree

 

 

 

 

 

 

8. Thermo Scientific Cimarec Ceramic Digital Hotplate Stirrer

 

Stir/Heating volume:
4L

Stirring speed:
50 to 1500 rpm

Max surface temperature:
540 °C

Max load:
25 lbs

Surface:
7.25"W x 7.25"D

Dimensions:
3.8"H x 8.2"W x 13"D

 

 

 

 

 

 

9. Renishaw AM400 laser powder bed fusion system

 

Build volume:
248 x 248 x 285 mm (9.7 x 9.7 x 11.2 in)

Build rate:
up to 20cm³/hr (1.22 in³/hr)

Powder layer thickness:
20 μm to 100μm (1 μin to 4 μin)

Laser power:
400 W

Speed scanning:

Up to 2 m/s (6.6 ft/s)

Speed positioning:

7 m/s (23 ft/s)

Laser focus diameter:

70 μm (3 μin)

Materials:
AlSi10Mg, CoCr, In625, In718, stainless steel 316L, Ti6Al4V, Maraging

 

10. Stratasys Dimension SST 1200 3D Printer

 

Model material:
ABSplus in 9 colors

Support material:
Soluble (SST 1200es)

Build size:
254 x 254 x 305 mm (10 x 10 x 12 in)

Layer thickness:
0.33 mm (0.013 in.) or .254 mm (.010 in)

Supported file types:

STL

Network connectivity:
Ethernet TCP/IP 10/100 base T

Size and weight:
838 x 737 x 1143 mm (33 x 29 x 45 in.); 148 kg (326 lbs.)

 

 

 

11. Thermo Haake W45 Stainless Steel Water Bath with DL30 Open-Bath Circulator/Heater

 

Heater capacity:
2.0 kw

Working temperature range:
22°C to 200°C

Bath volume:
30 to 42L

Bath size:
30W x 35L x 30H cm

Overall dimensions:
36W x 54L x 51H cm

 

 

 

 

 

 

 

 

 

 

12. Stratasys uPrint SE 3D Printer

 

Model material:
ABSplus in ivory

Support material:
SR-30 soluble

Build size:
203 x 152 x 152 mm (8 x 6 x 6 in)

Layer thickness:
.254 mm (.010 in.)

Supported file types:

STL

Network connectivity:
Ethernet TCP/IP 10/100 base T

Size and weight:
635 w x 660 d x 787 h mm (25 x 26 x 31 in.), 76 kg (168 lbs.)

 

 

 

 

 

 

 

13. Support Cleaning Apparatus SCA-1200HT

 

Key features:
Remove soluble support from ABS, PC and nylon 3D printed parts

User-selectable temperature presets at 50, 60, 70, and 85°C

User-controlled timer

Uses cleaning solutions from Stratasys

Stainless steel tub and basket

Over temperature and water level alarms

Automatic halt of operation with alarms

Removable parts basket size:
10” x 10” x 12” / 25 x 25 x 30cm 

Dimensions:
26” x 17.5 x 20.5”/ 66 x 44.5 x 52cm

 

 

14. Formlabs Form 2 Stereolithography (SLA) 3D Printer

 

Model Material:

Resin

Build Volume:

145L x 145W x 175H mm (5.7 x 5.7 x 6.9 in)

Layer Thickness (Axis Resolution:

25, 50, 100 microns (0.001, 0.002, 0.004in)

Laser Spot Size (FWHM):

140 microns (0.0055in)

Laser Specifications:

EN 60825-1:2007 certified
Class 1 Laser Product
405nm violet laser
250mW laser

Supported file types:

STL, OBJ

Network connectivity:

USB, Ethernet, Wi-Fi

Size and Weight:

350L x 330W x 520H mm (13.5 x 13 x 20.5 in); 13kg (28.5 lbs)

 

 

15. MakerBot Replicator Desktop 3D Printer (5th Generation)

 

Model Material:

MakerBot PLA

Build Volume:

252L x 199W x 150H mm (9.9 x 7.8 x 5.9 in)

Layer Resolution:

100 microns (0.0039in)

Filament Diameter:

1.75 mm (0.069in)

Supported file types:

STL, OBJ, THING, MAKERBOT

Network connectivity:

USB, Ethernet, Wi-Fi

Size and Weight:

528L x 441W x 410H mm (20.8 x 17.4 x 16.2 in); 20.8kg (45.9 lbs)

 

16. 3D Systems CubeX DUO

 

Model Material:

PLA / ABS/Dissovable Natural PLA in 18 colors

Build Volume:

265L x 275W x 240H mm (10.75 x 10.75 x 9.5 in)

Layer Resolution:

100 microns (0.004in)

Supported file types:

STL

Size and Weight:

515L x 515W x 598H mm (20.25 x 20.25 x 23.5 in); 36kg (79 lbs)

 

 

17. 3D Systems ThermoJet Solid Object Printer

Model Material:

ThermoJet 2000 and ThermoJet 88 thermoplastic build material in 3 colors

Build Volume:

250L x 190W x 200H mm (10 x 7.5 x 8 in)

Technology:

Multi-Jet Modeling (MJM)

Supported file types:

STL

Size and Weight:

1370W x 760W x 1120H mm (54 x 30 x 44 in); 375kg (826 lbs)

 

18. NextEngine 3D Laser Scanner

Measurement System:

NextEngine proprietary MultiStripe Laser Triangulation (MLT) technology

Format Options:

STL, OBJ, VRML, XYZ, and PLY files

Dimentionsal Accuracy:

±0.005" in Macro Mode and ±0.015" in Wide Mode.

Acquisition Speed:

50,000 processed points/sec throughput. Typically 2 minutes per scan of each facet.

Capture Density:

On target surface capture up to 268K points/in²(Marco), 29K points/in² (Wide).

Texture Density:

500 DPI on target surfaces is 500 DPI in Macro Mode and 200 DPI in Wide Mode.

Software:

GEO Measure 4000 System Software

Field Size:

5.1" x 3.8" (Macro) and 13.5" x 10.1" (Wide). ProScan Extended Mode 22.5” x 16.75”.

 

CSUN Environmental Health and Safety (JD-1115)

Follow safety procedures and dress appropriately for lab (long sleeves, long pants and covered shoes)

CSUN EHS website

https://www.csun.edu/ehs

Chemical Hygiene Program

https://www.csun.edu/ehs/chp

Material Safety Data Sheets (MSDS)

https://www.sigmaaldrich.com/safety-center.html

https://www.msdsonline.com/sds-search/

Chemical Inventory List

Sterile Water

Sodium Chloride

Acetone

70% Isopropyl Alcohol

Ethanol 70%

Xylenes

2,2,2-Trifluoroethanol, 99.8%

Polycaprolactone

Polystyrene Standard

Trypan Blue Bioreagent

Sodium Alginate

Ethylenediaminetetraacetic Acid

Calcium Chloride Dihydrate

Alginic Acid Sodium Salt from Brown Algae

Chitosan, Low Molecular Weight

Alginate Lyase Powder

Poly (Vinyl Acetate)

Gelatin from Porcine Skin

Gelatin from Porcine Skin

Graphene Dispersion w/ Ethyl Cellulose

Poly (D,L-Lactide-Co-Glycolide)

Elastin from Bovine Neck Ligament

Fibrin Washed from Human Plasma

Triton X-100

Poly-l-lysine

Polylactic Acid

DMEM

Trypsin EDTA

Ethyl Alcohol

Fibrinogen (from bovine plasma)

Thrombin (from bovine plasma)

Penicillin-Streptomycin

Water (Deionized)

Hyaluronic Acid Sodium Salt from Streptococcus Equi

Pluronic F-127

Glycerol

Acetic Acid

HyClone Trypan Blue Solution

Gentamycin Solution

RPMI 1640 w/ L-glutamine

Hyclone Fetal Bovine Serum

TEMPO, Free Radical

Poly(ethylene glycol) diacrylate

2-Hydroxy-4'-(2-Hydroxyethoxy)-2-Methyl-Propiophenone

2-(2H-Benzotriazol-2-YL)-4,6-BIS(1-Methyl-1-Phenylethyl)Phenol