Research Output 2004 2018

2018

Effect of plastic anisotropy on the deformation behavior of bicrystalline aluminum films – Experiments and modeling

Izadi, E., Opie, S., Lim, H., Peralta, P. & Rajagopalan, J. Jan 1 2018 In : Acta Materialia. 142, p. 58-70 13 p.

Research output: Research - peer-reviewArticle

Aluminum
Anisotropy
Plastics
Experiments
Direction compound
2017
1 Citations

Grain rotations in ultrafine-grained aluminum films studied using in situ TEM straining with automated crystal orientation mapping

Izadi, E., Darbal, A., Sarkar, R. & Rajagopalan, J. Jan 5 2017 In : Materials and Design. 113, p. 186-194 9 p.

Research output: Research - peer-reviewArticle

Aluminum
Crystal orientation
Transmission electron microscopy
Ultrafine
Unloading

In situ tensile testing of tin (Sn) whiskers in a focused ion beam (FIB)/scanning electron microscope (SEM)

Vallabhaneni, R., Izadi, E., Mayer, C. R., Kaira, C. S., Singh, S. S., Rajagopalan, J. & Chawla, N. 2017 (Accepted/In press) In : Microelectronics Reliability.

Research output: Research - peer-reviewArticle

Tin
Focused ion beams
Tensile testing
Electron microscopes
Scanning
2016

Capillary driven flow of polydimethylsiloxane in open rectangular microchannels

Sowers, T. W., Sarkar, R., Eswarappa Prameela, S., Izadi, E. & Rajagopalan, J. 2016 In : Soft Matter. 12, 26, p. 5818-5823 6 p.

Research output: Research - peer-reviewArticle

Capillary flow
Microchannels
Flow rate
baysilon
microchannels
2 Citations

Local, atomic-level elastic strain measurements of metallic glass thin films by electron diffraction

Ebner, C., Sarkar, R., Rajagopalan, J. & Rentenberger, C. Jun 1 2016 In : Ultramicroscopy. 165, p. 51-58 8 p.

Research output: Research - peer-reviewArticle

strain measurement
metallic glasses
electron diffraction
thin films
Strain measurement
1 Citations

Revealing anelasticity and structural rearrangements in nanoscale metallic glass films using in situ TEM diffraction

Sarkar, R., Ebner, C., Izadi, E., Rentenberger, C. & Rajagopalan, J. Sep 22 2016 (Accepted/In press) In : Materials Research Letters. p. 1-9 9 p.

Research output: Research - peer-reviewArticle

Metallic glass
Diffraction
Transmission electron microscopy
Strain measurement
Amorphous films
6 Citations

Texture dependent strain rate sensitivity of ultrafine-grained aluminum films

Izadi, E. & Rajagopalan, J. Mar 15 2016 In : Scripta Materialia. 114, p. 65-69 5 p.

Research output: Research - peer-reviewArticle

Aluminum
Strain rate
Textures
Ultrafine
strain rate
2015
10 Citations

Electron beam induced artifacts during in situ TEM deformation of nanostructured metals

Sarkar, R., Rentenberger, C. & Rajagopalan, J. Nov 10 2015 In : Scientific Reports. 5, 16345

Research output: Research - peer-reviewArticle

artifacts
electron beams
transmission electron microscopy
metals
stress relaxation
2014
2 Citations

A microfabricated, biohybrid, soft robotics flagellum

Williams, B. J., Anand, S. V., Rajagopalan, J. & Saif, M. T. A. 2014 Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS). Institute of Electrical and Electronics Engineers Inc., p. 192-195 4 p. 6765607

Research output: ResearchConference contribution

propulsion
robotics
filaments
Propulsion
Robotics
79 Citations

A self-propelled biohybrid swimmer at low Reynolds number

Williams, B. J., Anand, S. V., Rajagopalan, J. & Saif, M. T. A. Jan 17 2014 In : Nature Communications. 5, 3081

Research output: Research - peer-reviewArticle

low Reynolds number
filaments
Flagella
Cardiac Myocytes
Reynolds number
79 Citations

A self-propelled biohybrid swimmer at low Reynolds number

Williams, B. J., Anand, S. A., Rajagopalan, J. & Saif, M. T. A. 2014 In : Nature Communications. 5, p. 3081

Research output: Research - peer-reviewArticle

nucleation
engineering
microstructure
crystals
electrodeposition
2 Citations

Tensile behavior of single crystal tin whiskers

Singh, S., Sarkar, R., Xie, H. X., Mayer, C., Rajagopalan, J. & Chawla, N. 2014 In : Journal of Electronic Materials.

Research output: Research - peer-reviewArticle

2 Citations

Tensile behavior of single-crystal tin whiskers

Singh, S. S., Sarkar, R., Xie, H. X., Mayer, C., Rajagopalan, J. & Chawla, N. 2014 In : Journal of Electronic Materials. 43, 4, p. 978-982 5 p.

Research output: Research - peer-reviewArticle

Crystal whiskers
Tin
Focused ion beams
Electron microscopes
Single crystals
2013

Artificial swimmer powered by cardiomyocytes

Williams, B., Anand, S., Rajagopalan, J. & Saif, T. 2013 ASME 2013 Summer Bioengineering Conference, SBC 2013. Vol. 1 A

Research output: ResearchConference contribution

Cardiac Myocytes
10 Citations

Fabrication of freestanding 1-D PDMS microstructures using capillary micromolding

Rajagopalan, J. & Saif, M. T. A. 2013 In : Journal of Microelectromechanical Systems. 22, 5, p. 992-994 3 p., 6541951

Research output: Research - peer-reviewArticle

Polydimethylsiloxane
Fabrication
Microstructure
Silicon
Substrates
10 Citations

Fabrication of freestanding 1-D PDMS microstructures using capillary micromolding

Rajagopalan, J. & Saif, M. T. A. 2013 In : Journal of Microelectromechanical Systems. 22, p. 992-994

Research output: Research - peer-reviewArticle

In vivo mechanical behavior of Drosophila Neurons

Rajagopalan, J., Tofangchi, A. & Saif, M. T. A. 2013

Research output: Research - peer-reviewPaper

Neuromechanics: The role of tension in neuronal growth and memory

Ahmed, W. W., Rajagopalan, J., Tofangchi, A. & Saif, M. T. A. 2013 Nano and Cell Mechanics. Espinosa, H. & Bao, G. (eds.). John Wiley and Sons

Research output: ResearchChapter

2012
4 Citations

Neuromechanics: The Role of Tension in Neuronal Growth and Memory

Ahmed, W. W., Rajagopalan, J., Tofangchi, A. & Saif, T. A. Dec 11 2012 Nano and Cell Mechanics: Fundamentals and Frontiers. John Wiley and Sons, p. 35-61 27 p.

Research output: ResearchChapter

Neurons
Data storage equipment
Mechanics
2011
12 Citations

Eect of microstructural heterogeneity on the mechanical behavior of nanocrystalline metal lms

Rajagopalan, J. & Saif, M. T. A. 2011 In : Journal of Materials Research. 26, p. 2826-2832

Research output: Research - peer-reviewArticle

12 Citations

Effect of microstructural heterogeneity on the mechanical behavior of nanocrystalline metal films

Rajagopalan, J. & Saif, M. T. A. Nov 28 2011 In : Journal of Materials Research. 26, 22, p. 2826-2832 7 p.

Research output: Research - peer-reviewArticle

metal films
Metals
microstructure
Microstructure
Bauschinger effect

In-situ and post mortem TEM studies of nanostructured materials

Rentenberger, C., Gammer, C., Geist, D., Rajagopalan, J., Karnthaler, H. P., Dehm, G. & Saif, T. A. 2011

Research output: Research - peer-reviewPaper

31 Citations

MEMS sensors and microsystems for cell mechanobiology

Rajagopalan, J. & Saif, M. T. A. May 2011 In : Journal of Micromechanics and Microengineering. 21, 5, 054002

Research output: Research - peer-reviewArticle

Microsystems
MEMS
Mechanics
Sensors
Cells

MEMS sensors and microsystems for cell mechano- biology

Rajagopalan, J. & Saif, M. T. A. 2011 In : Journal of Micromechanics and Microengineering. 21

Research output: Research - peer-reviewArticle

2010

Coupled effect of size and heterogeneity on metal plasticity

Rajagopalan, J. & Saif, M. T. A. 2010

Research output: Research - peer-reviewPaper

35 Citations

Drosophila neurons actively regulate axonal tension in vivo

Rajagopalan, J., Tofangchi, A. & Saif, M. T. A. 2010 In : Biophysical Journal. 99, p. 3208-3215

Research output: Research - peer-reviewArticle

35 Citations

Drosophila neurons actively regulate axonal tension in vivo

Jagannathan Rajagopalan, R., Alireza Tofangchi, T. & Saif, M. T. A. Nov 17 2010 In : Biophysical Journal. 99, 10, p. 3208-3215 8 p.

Research output: Research - peer-reviewArticle

Drosophila
Neurons
Neuromuscular Junction
Motor Neurons
Neurites
2 Citations

Highly linear, ultra sensitive bio-mems force sensors with large force measurement range

Rajagopalan, J., Tofangchi, A. & Saif, M. T. A. 2010 Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS). p. 88-91 4 p. 5442558

Research output: ResearchConference contribution

rangefinding
sensors
Force measurement
Sensors
Fruits
2 Citations

Highly linear, ultra sensitive bio-MEMS force sensors with large force measurement range

Rajagopalan, J., Tofangchi, A. & Saif, M. T. A. 2010 Highly linear, ultra sensitive bio-MEMS force sensors with large force measurement range.

Research output: ResearchConference contribution

51 Citations

In situ TEM study of microplasticity and Bauschinger eect in nanocrystalline metals

Rajagopalan, J., Rentenberger, C., Karnthaler, P. H., Dehm, G. & Saif, M. T. A. 2010 In : Acta Materialia. 58, p. 4772-4782

Research output: Research - peer-reviewArticle

51 Citations

In situ TEM study of microplasticity and Bauschinger effect in nanocrystalline metals

Rajagopalan, J., Rentenberger, C., Peter Karnthaler, H., Dehm, G. & Saif, M. T. A. Aug 2010 In : Acta Materialia. 58, 14, p. 4772-4782 11 p.

Research output: Research - peer-reviewArticle

Metals
Transmission electron microscopy
Aluminum
Strain measurement
Stress measurement
9 Citations

In situ uniaxial mechanical testing of small scale materials - a review

Kang, W., Rajagopalan, J. & Saif, M. T. A. 2010 In : Nanoscience and Nanotechnology Letters. 2, p. 282-287

Research output: Research - peer-reviewArticle

9 Citations

In situ uniaxial mechanical testing of small scale materials - A review

Kang, W., Rajagopalan, J. & Saif, M. T. A. Dec 2010 In : Nanoscience and Nanotechnology Letters. 2, 4, p. 282-287 6 p.

Research output: Research - peer-reviewArticle

Mechanical testing
Mechanical properties
Testing
19 Citations

Linear, high-resolution bioMEMS force sensors with large measurement range

Rajagopalan, J., Tofangchi, A. & Saif, M. T. A. 2010 In : Journal of Microelectromechanical Systems. 19, p. 1380-1389

Research output: Research - peer-reviewArticle

19 Citations

Linear high-resolution BioMEMS force sensors with large measurement range

Rajagopalan, J., Tofangchi, A. & Saif, M. T. A. Dec 2010 In : Journal of Microelectromechanical Systems. 19, 6, p. 1380-1389 10 p., 5599273

Research output: Research - peer-reviewArticle

BioMEMS
Sensors
Force measurement
Fruits
Masks

Mechanical behavior of neurons in live Drosophila embryos

Rajagopalan, J., Tofangchi, A. & Saif, M. T. A. 2010

Research output: Research - peer-reviewPaper

2 Citations

The role of mechanical tension in neurons

Rajagopalan, J., Tofangchi, A. & Saif, M. T. A. 2010 Materials Research Society Symposium Proceedings. Vol. 1274, p. 3-7 5 p.

Research output: ResearchConference contribution

neurons
Neurons
Axons
axons
Drosophila
2 Citations

The role of mechanical tension in neurons

Rajagopalan, J., Tofangchi, A. & Saif, M. T. A. 2010 The role of mechanical tension in neurons.

Research output: ResearchConference contribution

2 Citations

Ultra sensitive Bio-MEMS force sensors with large force measurement range

Rajagopalan, J., Tofangchi, A. & Saif, M. T. A. 2010

Research output: Research - peer-reviewPaper

2009

Effffect of size and heterogeneity of microstructure on nanocrystalline plasticity

Rajagopalan, J. & Saif, M. T. A. 2009

Research output: Research - peer-reviewPaper

Extended microplasticity and Bauschinger effect of nanocrystalline Au and Al studied by in-situ TEM

Rentenberger, C., Rajagopalan, J., Dehm, G., Karnthaler, H. P. & Saif, T. A. 2009

Research output: Research - peer-reviewPaper

In situ TEM study of Bauschinger effect in unpassivated freestanding metal films

Rajagopalan, J., Rentenberger, C., Dehm, G., Karnthaler, H. P. & Saif, M. T. A. 2009

Research output: Research - peer-reviewPaper

Microstructural heterogeneity and the mechanical behav- ior of nanoscale aluminum films

Rajagopalan, J. & Saif, M. T. A. 2009

Research output: Research - peer-reviewPaper

Nanostruc- tures in metals and intermetallics studied by TEM

Rentenberger, C., Mangler, C., Gammer, C., Rajagopalan, J. & Karnthaler, H. P. 2009

Research output: Research - peer-reviewPaper

Quantitative in situ TEM study of deformation and fracture of nanoscale Aluminum Films

Rajagopalan, J., Rentenberger, C., Dehm, G., Karnthaler, H. P. & Saif, T. A. 2009

Research output: Research - peer-reviewPaper

2008
26 Citations

Bauschinger eect in unpassivated freestanding nanoscale metal lms

Rajagopalan, J., Han, J. H. & Saif, M. T. A. 2008 In : Scipta Materialia. 59, p. 734-737

Research output: Research - peer-reviewArticle

Bauschinger effect in unpassivated freestanding metal fifilms

Rajagopalan, J., Han, J. H. & Saif, M. T. A. 2008

Research output: Research - peer-reviewPaper

Bauschinger effect in unpassivated freestanding metal thin fifilms

Rajagopalan, J., Han, J. H. & Saif, M. T. A. 2008

Research output: Research - peer-reviewPaper

26 Citations

Bauschinger effect in unpassivated freestanding nanoscale metal films

Rajagopalan, J., Han, J. H. & Saif, M. T. A. Oct 2008 In : Scripta Materialia. 59, 7, p. 734-737 4 p.

Research output: Research - peer-reviewArticle

Unloading
Metals
Bauschinger effect
metal films
Aluminum