School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, 47907, USA.

Bindley Bioscience Center, Purdue University, West Lafayette, IN, 47907, USA.

School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, 47907, USA.

Bindley Bioscience Center, Purdue University, West Lafayette, IN, 47907, USA.

School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, 47907, USA.

Bindley Bioscience Center, Purdue University, West Lafayette, IN, 47907, USA.

School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, 47907, USA.

Bindley Bioscience Center, Purdue University, West Lafayette, IN, 47907, USA.

School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, 47907, USA.

Bindley Bioscience Center, Purdue University, West Lafayette, IN, 47907, USA.

School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, 47907, USA. mengcui@purdue.edu.

Bindley Bioscience Center, Purdue University, West Lafayette, IN, 47907, USA. mengcui@purdue.edu.

Department of Biology, Purdue University, West Lafayette, IN, 47907, USA. mengcui@purdue.edu.