Photo of Joseph Najem

Joseph Najem

Assistant Professor

Affiliation(s):

  • Mechanical Engineering

327 Reber Building

jsn5211@psu.edu

Research Areas:

Biomedical/Bioengineering; Design & Manufacturing; Energy Systems; Mechanical Sciences; Sensors & Controls

Interest Areas:

Development of smart materials that have the characteristics of biological systems: sensing, actuation, signal processing, computing and learning. Keywords: Bioinspiration, Biomolecular Assemblies, Biophysics, Multifunctional Materials, Soft Materials, Emergent Behavior

 
 

 

Education

  • BE, Mechanical Engineering, Lebanese American University, 2009
  • MS, Mechanical Engineering, Virginia Tech, 2012
  • Ph D, Mechanical Engineering, Virginia Tech, 2015

Publications

Journal Articles

  • Woochul Song, Himanshu Joshi, Ratul Chowdhury, Joseph Najem, Yue-xiao Shen, Chao Lang, Codey B Henderson, Yu-Ming Tu, Megan Farell, Megan E Pitz and others, 2020, "Artificial water channels enable fast and selective water permeation through water-wire networks", Nature Nanotechnology, 15, (1), pp. 73--79
  • Joseph Najem, Graham J Taylor, Nick Armendarez, Ryan J Weiss, Md Sakib Hasan, Garrett S Rose, Catherine D Schuman, Alex Belianinov, Stephen A Sarles and C Patrick Collier, 2019, "Assembly and characterization of biomolecular memristors consisting of ion channel-doped lipid membranes", JoVE (Journal of Visualized Experiments), (145), pp. e58998
  • Joseph Najem, Md Sakib Hasan, Ronald Williams, Ryan J Weiss, Garrett S Rose, Graham J Taylor, Stephen A Sarles and C Patrick Collier, 2019, "Dynamical nonlinear memory capacitance in biomimetic membranes", Nature communications, 10, (1), pp. 1--11
  • Subhadeep Koner, Joseph Najem, Md Sakib Hasan and Stephen A Sarles, 2019, "Memristive plasticity in artificial electrical synapses via geometrically reconfigurable, gramicidin-doped biomembranes", Nanoscale, 11, (40), pp. 18640--18652
  • Elio J Challita, Joseph Najem, Rachel Monroe, Donald J Leo and Eric C Freeman, 2018, "Encapsulating networks of droplet interface bilayers in a thermoreversible organogel", Scientific reports, 8, (1), pp. 1--11
  • Joseph Najem, Graham J Taylor, Ryan J Weiss, Md Sakib Hasan, Garrett Rose, Catherine D Schuman, Alex Belianinov, C Patrick Collier and Stephen A Sarles, 2018, "Memristive ion channel-doped biomembranes as synaptic mimics", ACS nano, 12, (5), pp. 4702--4711
  • Joseph Najem, Ian Rowe, Andriy Anishkin, Donald J Leo and Sergei Sukharev, 2018, "The voltage-dependence of MscL has dipolar and dielectric contributions and is governed by local intramembrane electric field", Scientific reports, 8, (1), pp. 1--12
  • Michelle Makhoul-Mansour, Wujun Zhao, Nicole Gay, Colleen O’Connor, Joseph Najem, Leidong Mao and Eric C Freeman, 2017, "Ferrofluid-based droplet interface bilayer networks", Langmuir, 33, (45), pp. 13000--13007
  • Joseph Najem, Eric C Freeman, Anthony Yasmann, Sergei Sukharev and Donald J Leo, 2017, "Mechanics of Droplet Interface Bilayer “Unzipping” Defines the Bandwidth for the Mechanotransduction Response of Reconstituted MscL", Advanced Materials Interfaces, 4, (3), pp. 1600805
  • Rodrigo Sarlo, Joseph Najem and Donald J Leo, 2016, "Flow field sensing with bio-inspired artificial hair cell arrays", Sensors and Actuators B: Chemical, 236, pp. 805--814
  • EC Freeman, JS Najem, S Sukharev, MK Philen and DJ Leo, 2016, "The mechanoelectrical response of droplet interface bilayer membranes", Soft Matter, 12, (12), pp. 3021--3031
  • JS Najem, MD Dunlap, ID Rowe, EC Freeman, JW Grant, S Sukharev and DJ Leo, 2015, "Activation of bacterial channel MscL in mechanically stimulated droplet interface bilayers.", Scientific reports, 5, pp. 13726--13726
  • Joseph Najem, Myles D Dunlap, Anthony Yasmann, Eric C Freeman, John W Grant, Sergei Sukharev and Donald J Leo, 2015, "Multifunctional, micropipette-based method for incorporation and stimulation of bacterial mechanosensitive ion channels in droplet interface bilayers", JoVE (Journal of Visualized Experiments), (105), pp. e53362
  • Joseph Najem, Eric Freeman, Sergei Sukharev and Donald J Leo, 2015, "The Gating Mechanism of Mechanosensitive Channels in Droplet Interface Bilayers", MRS Online Proceedings Library Archive, 1722
  • Joseph Najem, Myles Dunlap, Sergei Sukharev and Donald J Leo, 2014, "Mechanosensitive channels activity in a droplet interface bilayer system", MRS Online Proceedings Library Archive, 1621, pp. 171--176
  • Joseph Najem, Stephen A Sarles, Barbar Akle and Donald J Leo, 2012, "Biomimetic jellyfish-inspired underwater vehicle actuated by ionic polymer metal composite actuators", Smart Materials and Structures, 21, (9), pp. 094026

Conference Proceedings

  • Catherine D Schuman, Joseph Najem, Ryan Weiss, Nicholas Skuda, Alex Belianinov, Pat Collier, Stephen Sarles, Garrett Rose and others, 2019, "Biomimetic, Soft-Material Synapse for Neuromorphic Computing: from Device to Network", Oak Ridge National Lab.(ORNL), Oak Ridge, TN (United States)
  • Ryan Weiss, Joseph Najem, Md Sakib Hasan, Catherine D Schuman, Alex Belianinov, C Patrick Collier, Stephen A Sarles and Garrett S Rose, 2018, "A soft-matter biomolecular memristor synapse for neuromorphic systems", pp. 1--4
  • Md Sakib Hasan, Catherine D Schuman, Joseph Najem, Ryan Weiss, Nicholas D Skuda, Alex Belianinov, C Patrick Collier, Stephen A Sarles and Garrett S Rose, 2018, "Biomimetic, soft-material synapse for neuromorphic computing: from device to network", pp. 1--6
  • Md Sakib Hasan, Joseph Najem, Ryan Weiss, Catherine D Schuman, Alex Belianinov, C Patrick Collier, Stephen A Sarles and Garrett S Rose, 2018, "Response of a memristive biomembrane and demonstration of potential use in online learning", pp. 1--4
  • Elio J Challita, Joseph Najem, Eric C Freeman and Donald J Leo, 2017, "A 3D printing method for droplet-based biomolecular materials", 10167, pp. 1016712
  • Joseph Najem, Graham J Taylor, Charles P Collier and Stephen A Sarles, 2017, "Synapse-Inspired Variable Conductance in Biomembranes: A Preliminary Study"
  • Joseph Najem, Sergei Sukharev and Donald Leo, 2016, "The activity of MscL in asymmetric droplet interface bilayers"
  • Joseph Najem, Sergei Sukharev and Donald J Leo, 2016, "The Effect of Transmembrane Potential on the Gating of MscL Channels in Droplet Interface Bilayers"
  • Joseph Najem, Eric Freeman, Sergei Sukharev and Donald Leo, 2015, "Modulation of MscL activity in droplet interface bilayers through tailored interfacial mechanical properties"
  • Alex Edgerton, Joseph Najem and Donald Leo, 2014, "A Hydrogel-Based Droplet Interface Lipid Bilayer Network"
  • Joseph Najem, Alex Edgerton and Donald J Leo, 2013, "Biomolecular hydrogel-based lipid bilayer array system", 8686, pp. 86860C
  • Joseph Najem and Donald J Leo, 2012, "A bio-inspired bell kinematics design of a jellyfish robot using ionic polymer metal composites actuators", 8340, pp. 83401Q
  • Joseph Najem, Barbar Akle, Stephen A Sarles and Donald J Leo, 2011, "Design and development of a biomimetic jellyfish robot that features ionic polymer metal composites actuators", pp. 691--698
  • Barbar Akle, Joseph Najem, Donald Leo and John Blottman, 2011, "Design and development of bio-inspired underwater jellyfish like robot using ionic polymer metal composite (IPMC) actuators", 7976, pp. 797624
  • M Elkhoury, Joseph Najem and Z Nakad, 2008, "URANS modeling of three airfoils with different stall mechanisms", pp. 795--800

Abstracts

  • Charles Collier, Joseph Najem, Stan Williams, Graham Taylor, Catherine Schuman, Alex Belianinov, Benjamin Doughty, Ryan Weiss, Md Sakib Hasan, Garrett Rose and others, 2020, "Memory and learning in biomolecular soft materials", Bulletin of the American Physical Society
  • Joseph Najem, Ian Rowe, Andriy Anishkin, Joseph Maramba, Donald J Leo and Sergei Sukharev, 2019, "Voltage Dependence and Modulation of Bacterial Channel MscL", Biophysical Journal, 116, (3), pp. 377a

Other

  • Joseph Najem, 2015, "Droplet Interface Bilayers for Mechano-Electrical Transduction Featuring Bacterial MscL Channels"
  • Joseph Najem, 2012, "Design and Development of a Bio-inspired Robotic Jellysh that Features Ionic Polymer Metal Composites Actuators"

Research Projects

Honors and Awards

  • Outstanding Researcher Award, University of Tennessee, 2019
  • Iota Delta Rho Interdisciplinary Research Honor Society, Virginia Tech, 2015
  • Pratt Fellowship, Virginia Tech, 2012
  • Tau Beta Pi Engineering Honor Society, Tau Beta Pi, 2011

Service

Service to Penn State:

Service to External Organizations:

 


 

About

With more than 60 faculty members, 330 graduate students, and 800 undergraduate students, the Penn State Department of Mechanical Engineering embraces a culture that welcomes individuals with a diversity of backgrounds and expertise. Our faculty and students are innovating today what will impact tomorrow’s solutions to meeting our energy needs, homeland security, biomedical devices, and transportation systems. We offer B.S. degrees in mechanical engineering as well as resident (M.S., Ph.D.) and online (M.S.) graduate degrees in mechanical engineering. See how we’re inspiring change and impacting tomorrow at me.psu.edu.

Department of Mechanical Engineering

137 Reber Building

The Pennsylvania State University

University Park, PA 16802-4400

Phone: 814-865-2519