University of Southern California Mork Family Department of Chemical Engineering and Materials Science The USC Andrew and Erna Viterbi School of Engineering USC
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Andrea M Armani


Assistant Professor




Research Topics

  • Biological and chemical sensors
  • Integration of microfluidics 
  • Optical device design and characterization

Research Overview

Biological and Chemical Sensors
 
The ability to perform label-free experiments is an enabling technology for many biological systems studies.  However, currently the majority of label-free detection technologies require very high concentrations of molecules, ie they are not able to perform these potentially revolutionary experiments. One active area of research is developing the techniques and methods which will allow many of the pivotal systems biology questions to be addressed. This research is highly collaborative. 

Studying the dynamic and often non-linear properties of polymeric materials requires the development of realtime detection and monitoring techniques.  One of the research topics is the development of such an instrument and its implementation in studying non-linear surface phenomena, such as catalysis and phase transformation. This work is performed in collaboration with Prof. Barry Thompson in the Chemistry Dept at USC.

Microfluidics

Although microfluidics is a fairly developed field, its integration with optics (a recently coined term of optofluidics), is extremely young.  It is the merging of these two fields that can finally fully realize the lab-on-chip vision, with devices like an integrated sensing platform with PCR. However, there is still a significant amount of engineering to be finished in order to make the microfludic components compatible with the optics and optical devices, as well the development of a sufficiently sensitive transduction mechanism.

Optical Devices

Optical microcavities have been crucial in studying many non-linear effects because of the resonant re-circulation of of light within the microcavity.  They also can prove to be an integral component in many telecommunications devices because of their very narrow linewidths. One active area of study is improving their ability to perform these experiments by improving this platform as well as investigating the development of novel platforms with similar performance characteristics. 

 


 
Contact Information


Web Site: 
http://chems.usc.edu/armani/

E-mail:                       
armani@usc.edu
Mailing Address:      
Mork Family Department of Chemical Engineering and Materials Science
University of Southern California
VHE 712, 3651 Watt Way
Los Angeles, CA 90089-1211
Office Location:
       
VHE 712

Office Phone:          
213-740-4428

Fax:                         

Education


AB Physics, University of Chicago, 2001 PhD Applied Physics, California Institute of Technology, 2007
Clare Boothe Luce Postdoctoral Fellow, Biology and Chemical Engineering, California Institute of Technology, 2006-8
 
Research Images


 
 Selected Publications


1. "Characterization of High-Q Optical Microcavities using Confocal Microscopy", R.P. Kulkarni, S.E.Fraser, A.M. Armani, Optics Letter, Volume 33, No. 24, December 2008.

2. "Label-free, single-molecule detection with optical microcavities", Armani AM, Kulkarni RP, Fraser SE, et al., SCIENCE, 317 5839:783-787 (2007).

3. "Soft lithographic fabrication of high Q polymer microcavity arrays", Armani AM, Srinivasan A, Vahala KJ, NANO LETTERS, 7 6:1823-1826 (2007).

4. "Heavy water detection using ultra-high-Q microcavities", Armani AM, Vahala KJ, OPTICS LETTERS, 31 12:1896-1898, (2006).

5. "Ultra-high-Q microcavity operation in H2O and D2O", Armani AM, Armani DK, Min B, et al., APPLIED PHYSICS LETTERS, 87 15: 151118, (2005).