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Universal Journal of Lasers, Optics, Photonics & Sensors

  • I would like to thank you first for this nice invitation at the conference LOPS 2021. The conference was very interesting, well organized and very inspiring for interaction and collaborations. I was impressed by the organization I found very efficient and flexible. The conference gave me the opportunity to present my research to a global audience creating an excellent synergy. Experience we have to do it again every year for sure! Looking forward to see you next year! 

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    • Nicolas Javahiraly, Project manager, Expert, The Sagem Defense group,  University of Strasbourg, France
  • The Universal Journal of Lasers, Optics, Photonics & Sensors is a new and exciting online journal which brings to the reader the latest advances in cutting-edge research in a timely fashion.  Its published articles have been subject to rigorous peer review, which helps maintain top quality of each issue. 

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    • Prof. Thomas F. George, Chancellor Emeritus / Professor Emeritus of Chemistry and Physics, University of Missouri-St. Louis

Editor Biography

Hai-Feng (Frank)

Drexel University, USA


Dr. Hai-Feng (Frank) Ji is current a professor of Department of Chemistry, Drexel university. His research interests focus on MEMS devices, nanopillars and phosphene for energy applications, nanomaterials for energy and environmental applications, polymers, drug discovery, and surface chemistry. He is currently a co-author of 180 peer-viewed journal articles and book chapters. He has an H-index of more than 34.

Research Interest

  • Drug discovery on cancer
  •  bacterial biofilm
  • Micro- and Nanosensors
  • Optoelectronics
  • Nanomaterials
  • Conductive polymers
  • Hydrogels for biomedical applications
  • Surface chemistry
  • Plasma Chemistry


Selected Publications

  • X. Yang, H.-F. Ji, “Flexible Nanoribbons Made of A Biamphiphilic Perylene Bisimide Derivative”.

  • Santosh, H.-F. Ji, J. Fang, K. Varahramyan. “Simulation and Model of Novel Inductive Microcantilevers”.

Peer Reviewed Journals:


  • H. F. Ji, X. Xu, “Hexagonal Organic Nanopillar Array from Melamine-Cyanuric Acid Complex”, Langmuir, 201026, 4620-4622. (PDF file)
  • L. Zhao, A. Bulhassan, G. Yang, H.-F. Ji, J. Xi, “Real-Time Detection of the Morphological Change in Cellulose by A Nanomechanical Sensor”, Biotech. Bioeng2010,  (PDF file)
  • H. F. Ji, B. Armon, “Approaches to Increasing Surface Stress for Improving Signal -to-Noise Ratio of Microcantilever Sensors”. Anal. Chem. 2010, 82, 1634-1642. (PDF file)
  • H. Zhang, X. Xu, H.-F. Ji, “Excitation-Wavelength-Dependent-Photoluminescence of Pyromellitic Diimide Nanowire Network”. Chem. Comm201046, 1917-1919 (PDF file)


  • M. S. K. Mutyala, D. Bandhanadham, L. Pan, V. R. Pendyala, H.-F. Ji, “Mechanical and Electronic Approaches to Improve the Sensitivity of Microcantilever Sensors”, Acta Mechanica Sinica, 2009, 25, 1-12.  (PDF file)
  • H. Gao, B. Chen, L. Z. Wu, C. H. Tung, H. –F. Ji, “ Ultrahydrophobicity of Polydimethylsiloxanes Based Multilayered Thin Films”, J. Nanotech.2009. doi:10.1155/2009/709748  (PDF file)


  • H. F. Ji, R. Majithia, X. Yang, X. Xu, K. More, “Self-Assembly of Perylenediimide and Naphthalenediimide Nanostructures on Glass Substrates through Deposition from the Gas Phase.”, J. Am. Chem. Soc. 2008130, 10056-10057. (PDF file)
  • P. Kapa, P. Liu, Q. Chen, D. Morishetti, M. S. Mutyala, J. Fang, K. Varahramyan, H.-F. Ji “Moisture Measurement Using Porous Aluminum Oxide Coated Microcantilevers”. SenActuat. B, Chem. 2008134, 390-395. (PDF file)
  • X. Yang, X. Xu, H.-F. Ji, “Solvent Effect on the Self-Assembled Structure of an Amphiphilic Perylene Diimide Derivative”. J. Phys. Chem. B, 2008. 112, 7196-7202. (PDF file)
  • Hongwei Du, Swapna Kondu, Hai-Feng Ji, Formation of Ultrathin Hydrogel Films on Microcantilever Devices Using Electrophoretic Deposition. Micro & Nano Lett. 2008, 3, 12-17. (PDF file)
  • Y. Lu, H.-F. Ji, “Electric Field –Directed Assembly of Gold and Platinum Nanowires From an Electrolysis Process” Electrochemistry Communications2008, 10, 222-224. (PDF file)
  • Hongyan Gao, Koutilya R. Buchapudi, Abraham Harms-Smyth, Marvin K. Schulte, Xiaohe Xu, and Hai-Feng Ji “Improved Surface Modification Approach for Micromechanical Sensors” Langmuir200824, 345-349. (PDF file)
  • Qi Chen, Ji Fang, Hai-Feng Ji, Micromachined SiO2 Microcantilever for High Sensitive Moisture Sensor" Microsystem Technologies2008, 14, 739-746. (PDF file)
  • H.-F. Ji, Hongyan Gao, Koutilya, R. Buchapudi, Xin Yang, Xiaohe, Xu, Marvin K. Schulte “Microcantilever Biosensors Based on Conformational Change of Proteins”. The analyst2008, 132, 434-443. (PDF file)
  • Q. Chen, J. Fang, H.-F. Ji, K. Varahramyan, “Isotropic etch for SiO2 microcantilever release with ICP system”, Microelectronics Engineering, 2008, 85, 500-507. (PDF file)
  • Xiaolei Shi, Qi Chen, Ji Fang, Koday Varahramyan, and Hai-Feng Ji, “Al2O3-Coated Microcantilevers for Detection of Moisture at ppm Level”, Sen. Actua. B. 2008, 129, 241-245. (PDF file)


  • Q. Chen, J. Fang, H.-F. Ji, K. Varahramyan, “Fabrication of SiO2 Microcantilever Using Isotropic Etching with ICP”, IEEE Sensor Journal2007, 7, 1632-1638.
  • Sreepriya Velanki, H. –F. Ji, T. Thundat, D. A. Blake, “Detection of Cd2+ Using Antibody Based Microcantilevers”. Ultramicroscopy2007107, 1123-1128. 
  • Y. Lu, H.-F. Ji, “Fabrication of Microcoil/Microsprings for Novel Chemical and Biological Sensing”, Sen. Actua. B: Chem2007123, 937-941.
  • Chandana Karnati, Hongwei Du, Hai-Feng Ji, X. Xu, Yuri Lvov, Wilfred Chen, Ashok Mulchandani “Organophosphrus Hydrolyase Multilayer Modified Microcantilevers for Organophosphorus Detection”, Biosensor Bioelectronics200722, 2636-2642.
  • H.-F. Ji “Chemical Specificity in Nanomechanical Sensors”, J. Solid State Phenomena2007, 121-123, 499-502.


  • X. Yan, K. Hill, H. Gao, H.-F. Ji “Surface Stress Changes Induced by Conformational Changes of Proteins”, Langmuir200622, 11241-11244.
  • Sreepriya Velanki, and Hai-feng Ji “Detection of Feline Coronavirus Using Microcantilever Sensors”, Meas. Sci. Technol. 2006, 17, 2964-2968.
  • H.-F Ji, Y. Lu, H. Du, X. K. Xu, T. Thundat, “Spiral springs and microspiral springs for chemical and biological sensing” Appl. Phys. Lett. 2006, 88, 063504/1-063504/3.
  • V. Chivukula, M. Wang, X. Shi, H.-F. Ji, “Simulation and Fabrication of Piezoresistive Microbridge for Chem/Biosensors”, J. Micromech. Microeng. 200616, 692-698.
  • X. Yan, H.-F. Ji, T. Thundat, “Microcantilever Biosensing”, Current Analytical Chemistry,  20062, 297-307
  • Y. Tang, X. Xu, J. Fang, Y. Liang, H.-F. Ji “Perfluorocarbon Nanofilament Array Formation on SiO2 and the Hyperhydrophobicity of the Surface” IEEE Transaction on Nanotechnology2006, 5(4), 415-419.
  • H.-F. Ji, Y. Yang, X. Xu, G. M. Brown, “A Calixarene Based Fluorescent Sr2+ and Ca2+ probe”, Org. Biomol. Chem20064, 770-772.
  • X. Yan, X. Shi, K. Hill, H.-F. Ji “Microcantilevers Modified by Horseradish Intercalated Nano-Assembly for Hydrogen Peroxide Detection”, Anal. Sci200622, 205-208
  • J. S. Mao, S. Kondu, H. F. Ji, M. J. McShane, “Study of the pH-sensitivity of chitosan/gelatin hydrogel in neutral pH range by microcantilever method” Biotechnology and Bioengineering2006, 95(3), 333-341
  • X.-H. Xu, X.-G. Fu, L.-Z. Wu, L.-P. Zhang, C.-H. Tung  H.-F. Ji, K. S. Schanze, R.-Q. Zhang, “Intramolecular Triplet Energy Transfer in Donor-Acceptor Molecules Linked by Flexible-Rigid Block Bridge”, Chem. Eur. J., 2006, 12, 5238-5245.
  • V. Chivukula, M. Wang, H.-F. Ji, A. Khaliq, J. Fang, K. Varahramyan. “Simulation of SiO2 –Based Piezoresistive Microcantilevers”, Sensor & Actuators, A2006, 125(2), 526-533.


  • H.-F. Ji, Y. Zhang, V. V. Purushotham, S. Kondu, B. Ramuchandran, T. Thundat, D. T. Haynie, “1,6-hexanedithiol monolayers as a receptor for specific recognition of alkylmercury”, Analyst2005, 130, 1577 – 1579
  • H. –F. Ji, X. Yan, M. McShane “Experimental and Theoretical Aspects of Glucose Measurement Using a Microcantilever Modified by Enzyme-Containing Polyacrylamide” Diabetes Technology & Therapeutics2005, 7(6), 986-995
  • X. Yan, X. K. Xu, and H.-F. Ji “Glucose Oxidase Multilayer Modified Microcantilever for Glucose Measurement”, Anal. Chem2005, 77(19), 6197-6204
  • Z. H. Shaik, H.-F. Ji, “Protecting Conductive Polymer Wire From Oxidation Using an air-impermeable Polyisobutylene Coating” Thin Solid Films2005, 488/1-2, 149-152.
  • L. A. Pinnaduwage, H.-F. Ji, and T. Thundat, “Moore’s Law in Homeland Defense: A integrated sensors platform based on silicon microcantilevers”. Invited review paperIEEE sensors20055, 774-785
  • Y. Tang, H.-F. Ji, “Cysteine monolayer modified microcantilevers for impulse monitoring”. Instrumentation Science & Technology2005, 33, 131-136
  • W. Zhou, A. Khaliq, Y. Tang, H.-F. Ji, R. R. Selmic “Simulation and Design of Piezoelectric Microcantilever Chemical Sensors” Sensors and Actuators, A2005, 125,(1), 69-75
  • D. Kommireddy, J. Shi, X. Yan, H. Ji, Y. Lvov, “Electrostatic Layer-by-Layer Nano-Assembly: Films, Cantilevers, Micropatterns and Nanocapsules” Invited paperProc. Of SPIE2005, vol. 5592, 120-131.


  • X. Yan, Y. Tang, H.-F. Ji, Y. Lvov, T. Thundat “Detection of Organophosphates Using an Acetyl cholinesterase (AChE) Coated Microcantilever” Instrument Science & Technology200432, 175-183
  • X. Yan, H.-F. Ji, Y. Lvov, “Modification of microcantilevers using Layer-by-Layer nanoassembly film for glucose  measurement”. Chemical Physical Letters2004396, 34-37
  • H. –F. Ji, Y. Feng, X. Xu, V. Purushotham, T. Thundat, G. M. Brown, “Photon-Driven Nanomechanical Cyclic Motion”, Chem. Commun2004, 22, 2532-2533
  • Xiaodong Yan, Jing Zhang, Hai-Feng Ji and T. Thundat “Molecular Recognition of Biowarfare Agents Using Micromechanical Sensors”, invited review paperExpert Review of Molecular Diagnostics20044(6), 859-866,.
  • Yanjun Tang, X. Xu, Haifeng Ji, G. M. Brown, T. Thundat, “Detection of Femtomolar Concentration of HF Using an SiO2 Microcantilever” Anal. Chem2004, 76(9), 2478-2481
  • J. Zhang, H.-F. Ji, “An Anti E. Coli O157:H7 Antibody-Immobilized Microcantilever for the Detection of Escherichia Coli (E. Coli)”, Anal. Sci., 2004, 20, 585-587
  • Yifei Zhang, Srinivasan P Venkatachalan, Hao Xu, Xiaohe Xu, Prasad Joshi, Hai-Feng Ji, Marvin Schulte “Micromechanical Measurement of Membrane Receptor Binding for Label-free Drug Discovery”  Biosensors & Bioelectronics2004, 19, 1473-1478
  • K. Liu, H. –F. Ji, “Detection of Pb2+ Using a hydrogel swelling Microcantilever sensor”, Anal. Sci200420, 9-11
  • Y. Zhang, H. –F. Ji, D. Snow, G. M. Brown, R. Sterling, “A pH Sensor Based on a Microcantilever Coated with Intelligent Hydrogel”, Instrument Science & Technology200432(4), 361-369
  • Yanjun Tang, Ji Fang, Xiaodong Yan, Hai-Feng Ji, “Fabrication and Characterization of SiO2 Microcantilever for Microsensor Application”, Sensor and Actuators, B  200497, 109-113


  • Y. Zhang, H. –F. Ji, G. Brown, T. Thundat, “Detection of CrO42- Using a Hydrogel Swelling Microcantilever Sensor”  Anal. Chem2003, 75, 4773-4777
  • X. Yan, Y. Lvov, H. –F. Ji, A. Singh, T. Thundat,  “A General Microcantilever Surface Modification method using a Multilayer for Biospecific Recognition”, Organic and Biomolecular Chemsitry2003, 1(3),  460-462.
  • Y. Yang, H. –F. Ji, T. Thundat, “Nerve Agents Detection Using a Cu2+/L-Cysteine Bilayer-Coated Microcantilever”, J. Amer. Chem. Soc2003, 125, 1124-1125.


  • A. C. Stephan, E. L. Finot, H. –F. Ji, L. A. Pinnaduwage, T. G. Thundat, “Micromechanical Measurement of Active Sites on Silicon Nitride Using Free Surface Energy”,  Ultramicroscopy2002, 91(1-4), 1-8.
  • X. Xu, T. G. Thundat and G. M. Brown, H.-F. Ji, “Detection of Hg2+ using Microcantilever sensors”, Anal. Chem., 200274(15), 3611-3615
  • H. Xu, X. Xu, R. Dabestani, and G. M. Brown, “Supramolecular Fluorescent Probes for the Detection of Mixed Alkali Ions that Mimic the Function of Integrated Logic Gate”,  J. Chem. Soc. Perkin Trans. 2, 2002, (3), 636-643
  • H.-F. Ji and T. G. Thundat, “In situ detection of calcium ions with chemically modified microcantilevers”, Biosensors & Bioelectronics2002  17(4), 337-343


  • X. Xu, H. Xu and H.-F. Ji, “New Fluorescent Probes for the Detection of Mixed Sodium and Potassium Metal Ions”, Chem. Commun., 2001, (20), 2092-2093
  • H.-F. Ji, H. Xu and X. Xu, “High Concentration Leveling Effect on 1:2 Stoichiometry Complexation between 1,3-Alternate Calix[4]-bis-benzocrown-6 and Cs”, Chem. Phys. Lett.2001343, 325-331
  • H.-F. Ji, X. Xu, C.-H. Tung, “Chromophore End-Labelled Long Chain Perfluoropolyether as Probes to Study the Formation of Aggregates in Aqueous Organic Solvent and Their Asymmetrical coaggregation with Hydrocarbons”, J. Photochem. Photobio. A, Chemistry2001, 144, 179-184
  • G. Wu, H. –F. Ji, K. Hansen, T. Thundat, R. Datar, R. Cote, M. F. Hagan, A. K. Chakraborty, and A. Majumdar “Origin of Nanomechanical Cantilever Motion Generated from Biolecular Interactions. “ Proc. Natl. Acad. Sci200198, 1560-1564
  • K. M. Hansen, H.-F. Ji, G. Wu, R. Datar, R. Cote, A. Majumdar, T. Thundat, “Cantilever-based optical deflection assay for discrimination of DNA single-nucleotide mismatches” Anal. Chem., 2001, 73(7), 1567-1571
  • H. F. Ji, T. Thundat, R. Dabestani, G. M. Brown, P. F. Britt, and P. Bonnesson “Ultrasensitive Detection of CrO42- Using a Microcantilever sensor”, Anal. Chem. 2001, 73(7), 1572-1576
  • H.-F Ji, R. Dabestani, and G. M. Brown, R. L. Hettich, “Synthesis and Sensing Behavior of Cyanoanthracene Modified 1,3-Alternate Calix[4]-benzocrown-6: A New Class of Cs+ Selective Optical Sensors”, J. Chem. Soc., Perkin Trans. II, 2001, 585-591.
  • H.-F. Ji, K. M. Hansen, Z. Hu, Thundat, T, “Detection pH variation using modified microcantilever sensors”, Sensor and Actuators. B. Chem., 2001, B72(3), 233-238.
  • Hubner, J.P., Carroll, B.F., Schanze, K.S., Ji, H.F., and Holden, M., "Temperature- and Pressure-Sensitive Paint Measurements in Short-Duration Hypersonic Flow," AIAA Journal2001, 39, 654-659


  • H. -F. Ji, R. Dabestani, G. M. Brown, and R. A. Sachleben, “A new highly selective calix[4]-crown-6 fluorescent cesium probe”, Chem. Commun2000, 833-834
  • H. –F. Ji; Shen, Y.; Hubner, J. P.; Carroll, B. F., Schmehl, R. H.; Simon, J. H. and Schanze, K. S. "A Temperature-Independent Pressure-Sensitive Paint Based on a Bichromophoric Luminophore" Applied Spectroscopy 2000, 54, 856-863
  • H. F. Ji, R. Dabestani, E. Finot, T. Thundat, G. M. Brown and P. F. Britt, “A Noval Self-Assembled Monolayer Coated Microcantilever for Low Level Cesium Detection”, Chem. Commun., 2000, 457-458
  • Hubner, J. P., Carroll, B. F., Schanze K. S., and Ji, H. F., “Pressure-Sensitive Paint Measurements in a Shock Tube,” Experiments in Fluids, 2000, pp. 21-28.
  • H. -F. Ji, R. Dabestani, G. M. Brown, “A Supramolecular Fluorescent Probe Activated by Protons to Detect Cesium and Potassium Ions, Mimics the Function of a Logic Gate”,  J. Am. Chem. Soc. 2000, 122, 9306-9307
  • K. M. Hansen, G. Wu, H.-F. Ji, T. Thundat, R. Datar, R. Cote, A. Majumdar,  “Nanomechanical detection of biomolecular interactions.    Proceedings - Electrochemical Society2000,  2000-19 (Microfabricated Systems and MEMS V),  200-207.


  • H.-F. Ji, R. Dabestani, R. L. Hettich, and G. M. Brown, “Optical Sensing of Cesium Using 1,3-alternate calix[4]-mono- and Di(anthrylmethyl)aza-crown-6”.    Photochem. Photobio., 199970(6), 882-886.
  • H.-F Ji, G. M. Brown, and R. Dabestani, “Calix[4]arene-based Cs+ Selective Optical Sensors”,  Chem. Commun.,1999,  7, 609-610
  • T. Thundat, E. Finot, H.-F. Ji, R. Dabestani, P.F. Britt, P. V. Bonnesen, G. M. Brown, R. J. Warmack, “Highly Selective Microcantilever Sensor for Cesium Ion Detection.”, Proc. –Electrochem. Soc., 199999-23, 314-319.
  • H. –F. Ji, R. Dabestani, G.M. Brown, R. L. Hettich, “Spacer Length Effect on the Photoinduced Electron Transfer Fluorescent Probe for the Alkali Metal Ions.”, Photochem. Photobio,.1999, 69, 513-516.


  • K. S. Schanze, Lucian A. Lucia, M. Cooper, K. A. Walters, H.-F. Ji and O. Sabina, “ Intramolecular Energy Transfer to trans-Stilbene”,   J . Phys. Chem.,1998, 102, 5577-5584


  • Hubner, J. P., Carroll, B. F., Schanze, K. S., and Ji, H. F., "Pressure-Sensitive Paint Measurements in a Shock Tube," 17th ICIASF Record, 1997, pp. 30-39.
  • C.-H. Tung, H. -F. Ji, "A Novel Host-Guest Molecules p-[1-(4-hydroxyphenyl)-1-methylethyl]calix[8]. Synthesis and Complexation Properties in Non-aqueous Polar Solution",   J. Chem. Soc. Perkin Trans.II. 1997185-188


  • Y.-Z. Wang, H.-F. Ji, C.-H. Tung, G. C. Yue, "Interaction of Polyelectrolyte with Fluorocarbon Surfactant in Aqueous Solution", Chin. Chem. Lett1996, 7, 951-953
  • H.-F. Ji, Chen-Ho Tung, "Fluorescence and Photodimerization of a Calix[4]arene-Based 2-Naphthoate”, Photograph. Sci. Photochem1996, 14, 289-292


  • C.-H. Tung, H.-F. Ji, "Hydrophobic Effects on Photochemical and Photo-physical Processes. Evidence for Aggregation of Perfluorocarbon in Aqueous Organic Solvents",  J. Chem. Soc., Faraday Trans.1995, 91(17), 2761-2765.
  • C.-H. Tung, H.-F. Ji,"Aggragation Behavior of Mixed Fluorocarbon and Hydrocarbon Molecules in Aqueous Organic Solvents. Nonideality and Ideality of Mixing", J. Phys. Chem.,199599, 8311-8316.
  • C.-H. Tung, H.-F. Ji, "Evidence for Aggragate Formation of long Chain Per-fluorocarbon in Aqueous Organic Solvents: Excimer Emission and Enengy Transfer", Chin. Chem. Lett.1995, 6(1), 31-34.

Book Chapters

  • “Photophysical and Photochemical Applications of Calixarene”, in Recent Research Developments in Photochemistry and Photobiology, ISBN: 81-7895-053-7. Transworld Research Network, 2002, 6, 121-139
  • H. –F. Ji, S. Sreepriya, X. Yan, V. Purushotham, Z. Haque, Y. Tang, “Microcantilever Chemical/bio Sensors” in “Recent Research Development in Chemistry”, 2004, 2, 1-27. Publisher: Research Signpost.
  • “Environmental Monitoring Using Microcantilever Sensors” in “Subsurface Contamination Remediation”, Chapter 12. Editors: Edgar Berkey and Tiffany Zachry. 2004
  • “Molecular Logic Gates”, in Micromanufacturing and Nanotechnology, ISBN: 3-540-25377-7. Spinger, 2005. 275-298