Web: https://docoslislab.ca/home
Dr. Aris Docoslis is a Professor in the Department of Chemical Engineering at Queen’s University and former NSERC Tier II Canada Research Chair in Colloids & Nanoscale Engineering (2003-2013). His research interests lie in the fields of Applied Colloid Science and Interfacial Engineering. His research is primarily experimental in nature and finds applications in Health (portable diagnostics), Environment (membrane separations, chemical detection of pollutants) and novel materials and manufacturing (graphene-based films and sensors).
Prof. Docoslis is also one of the inventors of a patented technology that has been commercialized by Spectra Plasmonics Inc., a Kingston-based start-up company. He is the author of over 80 peer-reviewed articles, 4 book chapters, co-inventor of 2 US patents, and the co-author of an international, 1 US, and 2 Canadian recent patent applications.
Research Interests
Training of Researchers
Professor Docoslis strives to ensure that students, postdoctoral associates, and research assistants in his group receive high quality training through mentoring, collaborations with industry, and participation in professional development activities (Conferences, Seminars, workshops, research networking). His hiring practices emphasize equity, diversity, and inclusion and encourage applications by historically underrepresented and equity-seeking groups.
Professor Docoslis has trained more than 25 Master’s students (MASc/Meng), 13 PhD students, 10 postdoctoral associates, and 5 research assistants/associates. He has also supervised the 4th year thesis or summer research work of over 35 undergraduate students. Most of his trainees work in cross-disciplinary research projects that involve joint collaborations with industry/government, or other academic partners.
Researchers in the Docoslis lab acquire technical expertise and skills desirable by the industrial, academic, and government sectors. These skills can be applied to the fields of, e.g., diagnostic devices, chemical sensors, electrochemistry, microfluidics, chemometrics, environmental remediation, graphene-based products and technologies, and polymer composites manufacturing. Such skills will make them employable in the medical diagnostics sector, by small/medium size companies seeking to enter new and emerging markets through the commercialization of smart sensors, lab-on-a-chip devices, spectroscopy instrumentation, or flexible electronics, or in environmental engineering and science. Past experience shows that HQP working directly with our industrial collaborators often end up as their employees.
S Azimi, A Docoslis “Surface-enhanced Raman scattering methods for illicit drug detection” Sensors 2022 (accepted)
H Awada, M Kontopoulou, A Docoslis “A note on using expanded graphite for achieving energy and time-efficient production of graphene nanoplatelets via liquid phase exfoliation” The Canadian Journal of Chemical Engineering 2022 (in press)
J Raveendran, A. Docoslis “Detection and quantification of toxicants in food and water using Ag–Au core-shell fractal SERS nanostructures and multivariate analysis” Talanta 2021 231, 122383.
S Mypati, A Sellathurai, M Kontopoulou, A Docoslis, DPJ Barz “High concentration graphene nanoplatelet dispersions in water stabilized by graphene oxide” Carbon 2021 174, 581-593.
NG Wilson, J Raveendran, A Docoslis “Portable identification of fentanyl analogues in drugs using surface-enhanced Raman scattering” Sensors and Actuators B: Chemical 2021 330, 129303.
S Azimi, A Farahani, A Docoslis, S Vahdatifar “Developing an integrated microfluidic and miniaturized electrochemical biosensor for point of care determination of glucose in human plasma samples” Analytical and Bioanalytical Chemistry 2021 413 (5), 1441-1452.
A Farahani, S Azimi, A Tajaddodi, A Docoslis, C Tashakori “Screen-printed anion-exchange solid-phase extraction: A new strategy for point-of-care determination of angiotensin receptor blockers” Talanta 2021 222, 121518.
S Nair, J Gomez-Cruz, G Ascanio, A Docoslis, RG Sabat, C Escobedo “Cicada Wing Inspired Template-Stripped SERS Active 3D Metallic Nanostructures for the Detection of Toxic Substances” Sensors 2021 21 (5), 1699.
NG Wilson, M. Khademi, A. Docoslis “Electrochemically deposited silver nanostructures for use as surface‐enhanced Raman scattering (SERS) substrates in point‐of‐need diagnostic devices” The Canadian Journal of Chemical Engineering 2021 99, 2428-2440.
A Mohammadi, MR Daymond, A Docoslis “Graphene oxide membranes for isotopic water mixture filtration: preparation, physicochemical characterization, and performance assessment” ACS Applied Materials & Interfaces 2020 12 (31), 34736-34745.
S Mypati, A Sellathurai, M Kontopoulou, A Docoslis, DPJ Barz “Synthesis and performance evaluation of exfoliated graphene nanoplatelet hydrogels as electrodes for supercapacitors” ECS Transactions 2020 97 (7), 359.
H Dies, A Bottomley, DL Nicholls, K Stamplecoskie, C Escobedo, A Docoslis “Electrokinetically-Driven Assembly of Gold Colloids into Nanostructures for Surface-Enhanced Raman Scattering” Nanomaterials 2020 10 (4), 661.
J Raveendran, KG Stamplecoskie, A Docoslis “Tunable Fractal Nanostructures for Surface-Enhanced Raman Scattering via Templated Electrodeposition of Silver on Low-Energy Surfaces” ACS Applied Nano Materials 2020 3 (3), 2665-2679.
S Mypati, A Docoslis, DPJ Barz “Direct writing of liquids by micro dispensing: Stability and shape of laminar jets with high Froude numbers” Chemical Engineering Journal 381, 122645.
J Raveendran, A Docoslis “Portable surface-enhanced Raman scattering analysis performed with microelectrode-templated silver nanodendrites” Analyst 2020 145 (13), 4467-4476.
Giglio, C.S.; Osazuwa, O.; Kontopoulou, M.; Docoslis, A. “Achieving high yield of graphene nanoplatelets in surfactant-assisted ultrasonication of graphite in water” Journal of Colloid and Interface Science 2019 107-117.
Mohammadi, A.; Nicholls, L.; Docoslis, A. “Improved surface-enhanced Raman scattering performance of silver nanoparticle dendrites with sprayed graphene-based coatings” Sensors 2018, 18, 3404.
Dies, H.; Siampani, M.; Escobedo, C.; Docoslis, A. “Direct detection of toxic contaminants in minimally processed food products using dendritic surface-enhanced Raman scattering substrates” Sensors 2018, 18, 2726.
Dies, H.; Nosrati, R.; Raveendran, J.; Escobedo, C.; Docoslis. A. “SERS-from-scratch: An electric field-guided nanoparticle assembly method for cleanroom-free and low-cost preparation of surface-enhanced Raman scattering substrates” Colloids and Surfaces A: Physicochemical and Engineering Aspects 2018, 553, 695-702.
Dies, H.; Raveendran, J.; Escobedo, C.; Docoslis. A. “Rapid identification and quantification of illicit drugs on nanodendritic surface-enhanced Raman scattering substrates” Sensors & Actuators B: Chemical 2018, 257, 382-388.
Gallerneault, M.; Truica-Marasescu, F.; Docoslis, A. “Influence of dispersing medium on the morphological and physico-chemical characteristics of sprayed graphene oxide-based coatings” Surface & Coatings Technology 2018, 334, 196-203.
Mypati, S.; Dhanushkodi, S.R.; McLaren, M.; Docoslis, A.; Peppley, B.A.; Barz, D.P.J. “Optimized ink-jet printed silver nanoparticle inks: Theoretical and experimental investigations.”, RSC Advances 2018, 8, 19679 – 19689.
Laux, E.M.; Docoslis, A.; Wenger, C.; Bier, F.F.; Hoelzel, R. “Combination of dielectrophoresis and SERS for bacteria detection and characterization” European Biophysics Journal with Biophysics Letters 2017, 46, S331-333.
Osazuwa, O.; Vasileiou, A.A.; Kontopoulou, M.; Docoslis, A. “Electric‐field induced filler association dynamics and resulting improvements in the electrical conductivity of polyester/multiwall carbon nanotube composites” Polymer Composites 2017, 38, 1571-1578.
Dies, H.; Raveendran, J.; Escobedo, C.; Docoslis, A. “In situ assembly of active surface-enhanced Raman scattering substrates via electric field-guided growth of dendritic nanoparticle structures” Nanoscale, 9, 7847-7857, 2017.
Petrie, K.G.; Osazuwa, O.; Docoslis, A.; Kontopoulou, M. “Controlling MWCNT partitioning and electrical conductivity in melt compounded polypropylene/poly(ethylene-co-octene) blends” Polymer 114, 231-241, 2017.
Raveendran, J.; Wood, J.A.; Docoslis, A. “Contact-free templating of 3-D colloidal structures using spatially non-uniform AC electric fields” Langmuir 32, 9619-9632, 2016.
Petrie, K.; Kontopoulou, M.; Docoslis, A. “Noncovalent compatibilization of polypropylene/ MWCNT composites using an amino‐pyridine grafted polypropylene matrix” Polymer Composites 37, 2794-2802, 2016.
Liao, D. S.; Raveendran, J.; Golchi, S.; Docoslis, A. “Fast and sensitive detection of bacteria from a water droplet by means of electric field effects and micro-Raman spectroscopy” Sensing and Biosensing Research 6, 59-66, 2015.
Osazuwa, O.; Vasileiou, A. A.; Kontopoulou, M.; Docoslis, A. “Electric‐field induced filler association dynamics and resulting improvements in the electrical conductivity of polyester/multiwall carbon nanotube composites” Polymer Composites 2015 [DOI: 10.1002/pc.23724]
Vasileiou, A. A.; Kontopoulou, M.; Gui, H.; Docoslis, A. “Correlation between the length reduction of carbon nanotubes and the electrical percolation threshold of melt compounded polyolefin composites” ACS Applied Materials & Interfaces 7, 1624-1631, 2015.
Tomkins, M. R.; Liao, D. S.; Docoslis, A. “Accelerated detection of viral particles by combining AC electric field effects and micro-Raman spectroscopy” Sensors 15, 1047-1059, 2015.
Osazuwa, O.; Kontopoulou, M.; Sabat, R. G.; Docoslis, A. “Electrified polyolefin/multiwall carbon nanotube composites exhibit dramatic changes in electrical conductivity, permittivity, and filler Structure” Macromolecular Materials & Engineering 300, 448, 2015.
Vasileiou, A. A.; Kontopoulou, M.; Docoslis, A. “A Noncovalent compatibilization approach to improve the filler dispersion and properties of polyethylene/graphene composites” ACS Applied Materials & Interfaces 6, 1916-1925, 2014.
Osazuwa, O.; Kontopoulou, M.; Xiang, P.; Ye, Z.; Docoslis, A. “Electrically conducting polyolefin composites containing electric field-aligned multiwall carbon nanotube structures: The effects of process parameters and filler loading” Carbon 72, 89-99, 2014.
Tomkins, M. R.; Chow, J.; Lai, Y.-J.; Docoslis, A. “A coupled cantilever-microelectrode biosensor for enhanced pathogen detection” Sensors & Actuators B: Chemical 176, 248-252, 2013.
Paul, D.K.; Karan, K.; Docoslis, A.; Giorgi, J.B.; Pearce, J. “Characteristics of Self-Assembled Ultrathin Nafion Films” Macromolecules 46(9), 3461-3475, 2013.
Vasileiou, A.A.; Papageorgiou, G.Z.; Kontopoulou, M.; Docoslis, A.; Bikiaris, D. “Covalently bonded poly(ethylene succinate)/SiO2 nanocomposites prepared by in situ polymerisation” Polymer 54, 1018-1032, 2013.
Vasileiou, A. A.; Docoslis, A.; Kontopoulou, M.; Xiang, P.; Ye, Z. “The role of non-covalent interactions and matrix viscosity on the dispersion and properties of LLDPE/MWCNT nanocomposites” Polymer 54, 5230-5240, 2013.
Osazuwa, O.; Petrie, K.; Kontopoulou, M.; Xiang, P.; Ye, Z.; Docoslis, A. “Characterization of non-covalently, non-specifically functionalized multi-wall carbon nanotubes and their melt compounded composites with an ethylene-octene copolymer” Composites Science & Technology 73, 27-33, 2012.
Wood, J. A.; Docoslis, A. “Electric-field induced phase transitions of dielectric colloids: Impact of multiparticle effects” Journal of Applied Physics 111, 094106, 2012.
Wood, J. A.; Docoslis, A. “AC electrokinetic templating of colloidal particle assemblies: Effect of Electrohydrodynamic flows” Langmuir 28, 4586-4597, 2012.
Bikiaris, D. N.; Nianias, N. P.; Karagiannidou, E. G.; Docoslis, A. “Effect of different nanoparticles on properties and enzymatic hydrolysis mechanism of an aliphatic polyester” Polymer Degradation and Stability 97(10), 2077-2089, 2012.
Tang, L.; Yan, X.; Kontopoulou, M.; Docoslis, A. “The effect of electric field parameters on the resistivity and induced percolation time of carbon black-filled polystyrene composites” Polymer Composites 32, 1106-1114, 2011.
Petrie K.; Docoslis, A.; Vasic, S.; Kontopoulou, M.; Morgan, S.; Ye, Z. “Non-covalent/Non-specific Functionalization of Multi-Walled Carbon Nanotubes with a Hyperbranched Polyethylene and Characterization of their Dispersion in a Polyolefin Matrix” Carbon 49, 3378-3382, 2011.
Papageorgiou, G. Z.; Bikiaris, D. N.; Achilias, D. S.; Papastergiadis, E.; Docoslis, A. “Crystallization and biodegradation of poly(butylene azelate): Comparison with poly(ethylene azelate) and poly(propylene azelate)” Thermochimica Acta 515, 13-23, 2010.
Bikiaris, D.; Vassiliou, A.; Chrissafis, K.; Paraskevopoulos, K.M.; Stavrev, S.Y., Docoslis, A. “Nanocomposites of isotactic polypropylene with carbon nanoparticles exhibiting enhanced stiffness, thermal stability and gas barrier properties” Composites Science and Technology 68, 933-943, 2009.
Papageorgiou, G. Z.; Docoslis, A.; Georgarakis, M.; Bikiaris D. “The Effect of Physical State on the Drug Dissolution Rate: Miscibility studies of Nimodipine with PVP” Journal of Thermal Analysis and Calorimetry 95, 903-915, 2009.
Kaufman, M.; Kontopoulou, M.; Kaufman, M.; Docoslis, A. “Electrorheological properties of PDMS/carbon black suspensions under shear flow” Rheologica Acta 48, 409-421, 2009.
Papageorgiou, G. Z.; Bikiaris, D.; Pavlidou, E.; Stergiou, A.; Park, Y.; Docoslis, A.; Karavas, E.; Georgarakis, E. "Dissolution rate enhancement of Nimodipine via nano-dispersion in PVP. Physical characterization of the mixtures by TEM and micro-Raman spectroscopy" European Journal of Pharmaceutical Sciences (Accepted, May 2009)
Papageorgiou, G. Z.; Karavas, E.; Koutris, M.; Georgarakis, E.; Docoslis, A.; Bikiaris, D. “Improvement in Chemical and Physical Stability of Fluvastatin Drug Through Hydrogen Bonding Interactions with Different Polymer Matrices” Current Drug Delivery 6, 101-112, 2009.
Vassiliou A, Biklaris D, Chrissafis K, Paraskevopoulos KM, Stavrev SY, Docoslis A, "Nanocomposites of isotactic polypropylene with carbon nanoparticles exhibiting enhanced stiffness, thermal stability and gas barrier properties ," Composites Science and Technology 68, 3-4, 933-943 , 2008.
Bikiaris, D.; Vassiliou, A.; Chrissafis, K.; Paraskevopoulos, K. M.; Jannakoudakis, A.; Docoslis, A. , "Effect of acid treated multiwall carbon nanotubes on the mechanical, permeability, thermal properties and thermo-oxidative stability of isotactic polypropylene,"Polymer Degradation and Stability 93, 5, 952-967 , 2008.
Chrissafis, K.; Paraskevopoulos, K. M.; Stavrev, S. Y.; Docoslis, A.; Vassiliou, A.; Bikiaris, D. , "Characterization and thermal degradation mechanism of isotactic polypropylene/carbon black nanocomposites," Thermochimica Acta 465, 6-17, 2007.
Van Oss, C. J.; Giese, R. F.; Docoslis, A., "Hyperhydrophobicity of the Water-Air Interface," Journal of Dispersion Science and Technology 26, 585, 2005.
Docoslis, A.; Tercero-Espinoza, L. A.; Israel, B., A.; Abbott, N. L.; Alexandridis, P., "Dielectrophoretic Capture of Viral Particles from Media of Physiological Ionic Strength," AIChE Conference Proceedings 79, 2004.
Van Oss, C. J.; Giese, R. F.; Docoslis, A., "Impact of Experimental and Instrumental Conditions on the Measured Results of Kinetic and Equilibrium Constant Determinations Involving Biopolymers," Journal of Biological Physics and Chemistry 4, 145, 2004.
Van Oss, C. J.; Giese, R. F.; Bronson, P. M.; Docoslis, A.; Edwards, P.; Ruyechan, W. T., "Microscopic-scale surface properties of streptavidin and their influence on aspecific interactions between streptavidin and dissolved biopolymers," Colloids and Surfaces B: Biointerfaces 30, 25-36, 2003.
Docoslis, A.; Alexandridis, P., "Electric Field Simulations for the Prediction of Dielectrophoretic Forces in the Nanoscale," 2nd Topical Conference on Nanometer Scale Science and Engineering AIChE Pub. No. P-168, 163-173, 2002.
Docoslis, A.; Alexandridis, P., "One-, two-, and three-dimensional organization of colloidal particles using non-uniform AC electric fields," Electrophoresis 23, 2174-2183, 2002.
Docoslis, A.; Alexandridis, P., "Manipulation of Nanoparticles via the Utilization of Non-Uniform AC Electric Fileds," Annual Meeting of the American Electrophoresis Society AIChE Pub. No. 148, 91-102, 2001.
van Oss, C. J.; Giese, R. F.; Docoslis, A., "Water, treated as the continuous liquid in and around cells," Cellular and Molecular Biology 47, 721-733, 2001.
Docoslis, A.; Wu, W.; Giese, R. F.; van Oss, C. J., "Influence of macroscopic and microscopic interactions on kinetic rate constants. III. Determination of von Smoluchowski's f-factor for HSA adsorption onto various metal oxide microparticles, using the extended DLVO approach," Colloids and Surfaces B: Biointerfaces 22, 205-217, 2001.
Docoslis, A; Rusinski, L. A.; Giese, R. F.; van Oss, C. J., "Kinetics and interaction constants of protein adsorption onto mineral microparticles. -Measurements of the constants at the onset of hysteresis," Colloids and Surfaces B: Biointerfaces 22, 267-283, 2001.
van Oss, C. J.; Docoslis, A.; Giese, R. F., "Free energies of protein adsorption onto mineral particles. -From the initial encounter to the onset of hysteresis," Colloids and Surfaces B: Biointerfaces 22, 285-300, 2001.
van Oss, C. J.; Wu, W.; Docoslis, A.; Giese, R. F., "The interfacial tensions with water and the Lewis acid-base surface tension parameters of polar organic liquids derived from their aqueous solubilities," Colloids and Surfaces B: Biointerfaces 20, 87-91, 2001.
Docoslis, A.; Giese, R. F.; van Oss, C. J., "Influence of the water-air interface on the apparent surface tension of aqueous solutions of hydrophilic solutes," Colloids and Surfaces B: Biointerfaces 19, 147-162, 2000.
van Oss, C. J.; Docoslis, A.; Wu, W.; Giese, R. F., "Influence of macroscopic and microscopic interactions on the kinetic rate constants. I. Role of the extended DLVO theory in determining the kinetic adsorption constant of proteins in aqueous media, using von Smoluchowski's approach," Colloids and Surfaces B: Biointerfaces 14, 99-104, 1999.
Docoslis, A.; Wu, W.; Giese, R. F.; van Oss, C. J., "Measurements of the kinetics of protein adsorption onto silica particles," Colloids and Surfaces B: Biointerfaces 13, 83-104, 1999.
Docoslis, A.; Kalogerakis, N.; Behie, L. A., "Dielectrophoretic forces can be safely used to retain viable cells in perfusion cultures of animal cells," Cytotechnology 30, 133-142, 1999.
Docoslis, A.; Kalogerakis, N.; Behie, L. A.; Kaler, K. V. I. S., "A novel dielectrophoresis-based device for the selective retention of viable cells in high conductivity cell culture media," Biotechnology and Bioengineering 54, 239-250, 1997.
Mitrakas, M.; Papageorgiou, G.; Docoslis, A.; Sakellaropoulos, G, "Evaluation of various pretreatment methods for olive oil mill wastewaters," European Water Pollution Control 6, 10-14, 1996.
Docoslis, A.; Kalogerakis, N.; Behie, L.A.; Kaler, K. V. I. S, "Filter for Perfusion Cultures of Animal Cells and the Like," US 5626734, May, 1997.
Funding
Financial support received from the following sources is greatly acknowledged: