B.S., University of Central Florida, Chemistry, 1987
B.S., University of Central Florida, Forensic Science, 1987
Ph.D., North Carolina State University, Analytical Chemistry, 1992
Postdoctoral, University of North Carolina, Chapel Hill, Analytical Chemistry, 1992-1994
NSF CAREER Award recipient, 1996
College of Humanities and Sciences (VCU) Distinguished Scholar Award, 2010
Research in the Collinson group spans the traditional disciplines of analytical, inorganic, and materials chemistry and incorporates various aspects of nanoscience and nanotechnology. During the past few years, our research has been directed toward the design, fabrication, and characterization of two classes of materials: (1) High surface area nanostructured materials for chemical analysis and biomedical applications; (2) Strategically functionalized surfaces (chemical gradients) for chemical analysis, chromatography, and directed transport.
We fabricate these materials using a wide variety of techniques that include sol-gel chemistry, templating (imprinting), electrodeposition, hierarchical nanostructuring, and silane chemistry. Common instrumental methods we use to characterize these materials include: atomic force microscopy (AFM), scanning electron microscopy (SEM), FTIR microspectroscopy, X-ray photoelectron microscopy (XPS), fluorescence spectroscopy, electrochemistry (potentiometry, cyclic voltammetry), and profilometry.
(1) High surface area nanostructured materials for chemical analysis and biomedical applications
Porous materials have many uses in analytical chemistry and material science that include catalytic surfaces and supports, chromatographic stationary phases, gas permeation membranes, adsorbents, chemical sensors, photonic devices, energy storage platforms, super-hydrophobic surfaces, and nanosized reactors and vessels. As a result, there has been a large demand to design and create materials with specific pore sizes, pore volumes, surface area, surface chemistry, and stability for these applications. In our work we create high surface area materials (mostly films) by strategically combining sol-gel chemistry, templating (imprinting), and/or electrodeposition together. In such a process, for example, a suitable template is assembled on a surface and the appropriate framework (silica, gold) is formed around the template either electrochemically or via spin coating. Upon subsequent removal of the template, voids remain in the conducting (gold) or nonconducting (silica, titania) network to form the high surface area material. Examples of various types of templates that we have used include molecules, surfactants, latex spheres, and hierarchical latex spheres. Applications in the area of biomedical science and chemical sensing are currently being pursued.
(2) Strategically functionalized surfaces for chemical analysis, separations, and directed transport
Strategically functionalized surfaces have received considerable interest in recent years due to the desire to spatially and temporally control the morphology, chemical composition, and properties of composite materials on multiple length scales. As a result, there has been a large demand to spatially organize functional groups on surfaces in a controlled fashion and utilize them to direct and control transport and influence the growth and adhesion of proteins and cells on surfaces. In this collaborative project, we make what are termed “functionally graded surfaces” or “surface chemical gradients” using silane chemistry. The primary objective of our work is to develop strategies for the fabrication and characterization of new classes of functionally graded thin films and use them in analytical applications. In conjunction with the Higgins group at Kansas State University, we have developed two methods to make materials whose surface exhibits a continuous, gradually varying chemical (polarity) or physical property (porosity) along a 10-20 mm length scale: Controlled Rate Infusion and Infusion-Withdrawal Dip Coating. Applications in the area of chemical analysis, separations, and directed transport are currently being pursued.
Selected Publications (since 2009)
Potentiometric Measurements in Biofouling Solutions: Comparison of Nanoporous Gold to Planar Gold; AA Farghaly, M Lam, CJ Freeman, B Uppalapati, MM Collinson; Journal of the Electrochemical Society2016 163 (4), H3083-H3087; doi: 10.1149/2.0101604jes
Photolithographic Micropatterning of Conducting Polymers on Flexible Silk Matrices; RK Pal, AA Farghaly, MM Collinson, SC Kundu, VK Yadavalli; Advanced Materials, 2015, ASAP, DOI: 10.1002/adma.201504736
Single-Molecule Perspective on Mass Transport in Condensed Water Layers over Gradient Self-Assembled Monolayers; D Giri, KM Ashraf, MM Collinson, DA Higgins; The Journal of Physical Chemistry C 2015 119 (17), 9418-9428
Self-supporting hybrid silica membranes with 3D large-scale ordered interconnected pore architectures; C Han, MY Li, YN Li, HL Liu, P Wang, MM Collinson, ZX Lu; RSC Advances 2015 5 (25), 19182-19189
Amine-Phenyl Multi-Component Gradient Stationary Phases. Veeren C. Dewoolkar, Balamurali Kannan, Kayesh M Ashraf, Daniel A. Higgins, and Maryanne M. Collinson. J. Chromatography A, 2015, 1410, 190-199.
Chelation Gradients for Investigation of Metal Ion binding at Silica Surfaces. Kannan, Balamurali; Higgins, Daniel A.; Collinson, Maryanne M. Langmuir 2014, 30 (33) pp 10019-10027; DOI: 10.1021/la502088k
Electroassisted Codeposition of Sol-Gel Derived Silica Nanocomposite Directs the Fabrication of Coral-like Nanostructured Porous Gold. Ahmed A. Farghaly and Maryanne M. Collinson. Langmuir, 2014, 30 (18), pp 5276–5286; DOI: 10.1021/la500614g
Single Molecule Spectroscopic Imaging Studies of Polarity Gradients Prepared by Infusion-Withdrawal Dip-Coating. Dipak Giri, Chelsea N. Hanks, Maryanne M. Collinson and Daniel A. Higgins, Journal of Physical Chemistry, 2014, 118, 6423-6432. DOI: 10.1021/jp412508c
Electrochemical Properties of Nanostructured Porous Gold Electrodes in Biofouling Solutions. Jay Patel, Logudurai Radhakrishnan, Bo Zhao, Badharinadh Uppalapati, Rodney C. Daniels, Kevin R.Ward, and Maryanne M. Collinson. Analytical Chemistry, 2013, 85 (23), pp 11610–11618
Fabrication of surface charge gradients in open-tubular capillaries and their characterization by spatially resolved pulsed streaming potential measurements. Balamurali Kannan, Kenji Nokura,Julio C. Alvarez, Daniel A. Higgins, and Maryanne M. Collinson. Langmuir, 2013, 29 (49), pp 15260–15265
Nanoporous Gold Electrodes and their Applications in Analytical Chemistry. Maryanne Collinson, ISRN Analytical Chemistry, 2013, 692484, 21 pages, Invited Review; doi: 10.1155/2013/692484 (open access)
Aminoalkoxysilane Reactivity in Surface Amine Gradients Prepared by Controlled-Rate Infusion. Balamurali Kannan, Daniel A. Higgins, and Maryanne M. Collinson. Langmuir, 2012, 28 (46), pp 16091–16098; doi: 10.1021/la303580c
Hierarchical porous gold electrodes: preparation, characterization, and electrochemical behavior. Bo Zhao and Maryanne M. Collinson. Journal of Electroanalytical Chemistry, 2012, 684, 53-59. doi: 10.1016/j.jelechem.2012.08.025
Electroassisted fabrication of free-standing silica structures of micrometer size. Fernando Luna-Vera, Dong Dong, Rasha Hamze, Shantang Liu, and Maryanne M. Collinson, Chemistry of Materials, 2012, 24, 2265–2273. doi: 10.1021/cm203714n
Hollow silica capsules with well-defined asymmetric windows in the shell. Bo Zhao and Maryanne M. Collinson, Langmuir, 2012, 28, 7492-7497. doi: 10.1021/la301560r
Size and Shape Control of Gold Nanodeposits in an Array of Silica Nanowells on a Gold Electrode. Amy E Rue and Maryanne M. Collinson, International Journal of Electrochemistry, special issue on “Surface Electrochemistry: Structured Electrode, Synthesis, and Characterization”, Invited, 2012, Article ID 971736, 9 pages, doi:10.1155/2012/971736. (open access)
Continuous Stationary Phase Gradients for Planar Chromatographic Media. Balamurali Kannan, Michael A. Marin,Kushal Shrestha, Daniel A Higgins, and Maryanne M. Collinson, Journal of Chromatography A, 2011, 1218 (52), 9406-9413.
Profile Control in Surface Amine Gradients Prepared by Controlled-Rate Infusion. Balamurali Kannan, Dong Dong, Daniel A Higgins, Maryanne M. Collinson. Langmuir, 2011, 27 (5), pp 1867–1873.
Spatiotemporal Evolution of Fixed and Mobile Dopant Populations in Silica Thin-Film Gradients as Revealed by Single Molecule Tracking. Chenchen Cui, Alec Kirkeminde, Chenchen Cui, Alec Kirkeminde, Balamurali Kannan, Maryanne M. Collinson, and Daniel A. Higgins J. Phys. Chem. C, 2011, 115 (3), pp 728–735
The Stability of Nonporous and Macroporous Titania Thin Films in Aqueous Electrolyte Solutions. Hema Aluri and M.M. Collinson. Journal of Electroanalytical Chemistry, 2011, 651, 2, 143-149.
Photothermal Deoxygenation of Graphite Oxide with Laser Excitation in Solution and Graphene-Aided Increase in Water Temperature. Victor Abdelsayed, Sherif Moussa, Hassan M. Hassan, Hema S. Aluri, Maryanne M. Collinson, and M. Samy El-Shall*. J. Phys. Chem. Letters, 2010, 1 (19), pp 2804–2809.
Well-Defined Hierarchical Templates for Multimodal Porous Material Fabrication. Bo Zhao and Maryanne Collinson, Chemistry of Materials, 2010, 22 (14), 4312-4319.
Fluorescence Spectroscopy Studies of Silica Film Polarity Gradients Prepared by Infusion-Withdrawal Dip-Coating. Fangmao Ye, Chenchen Cui, Alec Kirkeminde, Dong Dong, Maryanne M. Collinson, and Daniel A. Higgins, Chemistry of Materials, 2010, 22 (9), 2970-2977.
Single Molecule Studies of Oligomer Extraction and Uptake of Dyes in Poly(dimethylsiloxane) Films” Lange, Jeffrey; Collinson, Maryanne; Culbertson, Christopher; Higgins, Daniel, Analytical Chemistry, 2009, 81 (24), 10089-10096.
Bio-inspired chemical reactors for growing aligned gold nanoparticle-like wires. Zhe-Xue Lu, Lynn Wood, Dennis Ohman, and Maryanne Collinson. Chem. Commun., 2009, 4200 – 4202.
Selected Review Chapters on Sol-Gel Chemistry:
- Imprinted Functionalized Silica. Maryanne M. Collinson, for “The Supramolecular Chemistry of Organic-Inorganic Hybrid Materials”, Knut Rurack and Ramón Martínez-Máñez, Editors, Wiley: New York 2010. ISBN: 978-0-470-37621-854.
- Analytical Chemistry with Silica Sol Gels: Traditional Routes to New Materials for Chemical Analysis. Alain Walcarius and Maryanne M. Collinson. Annual Review of Analytical Chemistry, Volume 2, 2009, 121-143.
- What Can Be Learned from Single Molecule Spectroscopy? Applications to Sol-Gel-Derived Silica Materials. Fangmao Ye, Maryanne M. Collinson and Daniel A. Higgins. Physical Chemistry Chemical Physics, 2009, 11, 66–82.
- Electrochemistry: An Important Tool to Study and Create New Sol-Gel Derived Materials. Collinson, M.M. Accounts of Chemical Research, 2007, 40, 777-783.
- Recent Trends in Analytical Applications of Organically Modified Silicate Materials. Collinson, M.M. Trends in Analytical Chemistry, 2002, 21, 30-38.
- Exciting New Directions in the Intersection of Functionalized Sol-Gel Materials with Electrochemistry. Walcarius, A., Mandler, D., Cox, J., Collinson, M.M., Lev, O. J. Materials Chemistry, 2005, 15, 3663-3689.
- Gaining Insight into the Nanoscale Properties of Sol-Gel Derived Silicate Thin Films by Single Molecule Spectroscopy. Higgins, D.A., Collinson, M.M. Langmuir, 2005, 21, 9023-31.
- Recent Trends in Analytical Applications of Organically Modified Silicate Materials. Collinson, M.M. Trends in Analytical Chemistry, 2002, 21, 30-38
- Sol-Gel Strategies for the Preparation of Selective Materials for Chemical Analysis. Collinson, M.M. Critical Reviews in Analytical Chemistry, 1999, 29, 289-311.
- Review: “Sol-Gel Derived Chemical Sensors,” Maryanne M. Collinson, McGraw-Hill 2002 Yearbook of Science & Technology, 2002.
- “Structure, Chemistry, and Applications of Sol-Gel Derived Materials”. Collinson, M.M. Book Chapter in “Handbook of Advanced Electronic and Photonic Materials”, Vol. 5, 2001.