news

  • news: MRS fall meeting / november 29 - december 3, 2021 - boston, ma

    Ben Grant and Sarah Mell recently gave live talks and Haley Jones presented a poster at the hybrid Fall Meeting of the Materials Research Society in Boston, MA. The title of the talks were.....

    • Ben's talk: B. Grant, Y. Bandera, S. H. Foulger. “Data storage and information processing from roll-to-roll printed conjugated polymeric electrochemical memristors". Fall Meeting of the Materials Research Society, Boston, MA (November 29 - December 3, 2021).
    • Sarah's talk: S. Mell, H. W. Jones, Y. Bandera, S. H. Foulger. “Hydrogel-encapsulated crystalline colloidal arrays: Coupling the radioluminescent of an organic scintillator with a rejection wavelength”. Fall Meeting of the Materials Research Society, Boston, MA (November 29 - December 3, 2021).
    • Haley's poster: H. W. Jones, Y. Bandera, E. Zhang, S. H. Foulger. “X-Ray radioluminescent crystalline colloidal arrays: Fine-tuning color characteristics via x-ray induced sequential Förster resonance energy transfer (FRET) and a photonic bandgap”. Fall Meeting of the Materials Research Society, Boston, MA (November 29 - December 3, 2021).
  • news: ACS fall national meeting / august 22 - 26, 2021 - atlanta, ga

    Ben Grant, Haley Jones, and Eric Zhang recently gave live talks and Sarah Mell presented a poster at the hybrid Fall National Meeting of the American Chemical Society held virtually and in Atlanta, GA. The title of the talks were.....

    • Ben's talk: B. Grant, Y. Bandera, S. H. Foulger. “Data storage and processing from roll to roll printed electrochemical memristors". Fall National Meeting of the American Chemical Society, Atlanta, GA (August 22-26, 2021).
    • Haley's talk: H. W. Jones, Y. Bandera, E. Zhang, S. H. Foulger. “Fully organic, x-ray radioluminescent crystalline colloidal arrays: Spanning the full visible spectrum via x-ray induced sequential Förster resonance energy transfer (FRET)”. Fall National Meeting of the American Chemical Society, Atlanta, GA (August 22-26, 2021).
    • Eric's talk: E. Zhang, A. Dickey, H. W. Jones, Y. Bandera, I. Foulger, J. Kolis, J. Ballato, S. H. Foulger. "Synthesis of novel hybrid inorganic/organic nanoscintillators for biomedical applications". Fall National Meeting of the American Chemical Society, Atlanta, GA (August 22-26, 2021).
    • Sarah's poster: S. Mell, H. W. Jones, Y. Bandera, S. H. Foulger. “Hydrogel encapsulated radioluminescent crystalline colloidal arrays with tunable emissions”. Fall National Meeting of the American Chemical Society, Atlanta, GA (August 22-26, 2021).
  • news: OSA advanced photonics congress: novel optical materials and applications (NOMA) / july 26 - 30, 2021 - virtual

    Ben Grant, Haley Jones, Sarah Mell, and Eric Zhang recently gave live talks at the Optical Society of America (OSA) Advanced Photonics Congress (APS): Novel Optical Materials and Applications (NOMA). The title of the talks were.....

    • Ben's talk: B. Grant, Y. Bandera, S. H. Foulger. “A Fully Self-Doped Electrochromic Conjugated Polymer Device Towards Neuromorphic Applications,” Optical Society of America (OSA) Advanced Photonics Congress (APS): Novel Optical Materials and Applications (NOMA), Virtual.
    • Haley's talk: H. W. Jones, Y. Bandera, S. H. Foulger. “X-ray Radioluminescent Crystalline Colloidal Arrays Composed of Terpolymer Nanoparticles,” Optical Society of America (OSA) Advanced Photonics Congress (APS): Novel Optical Materials and Applications (NOMA), Virtual.
    • Sarah's talk: S. Mell, H. W. Jones, Y. Bandera, S. H. Foulger. “Hydrogel Films Encapsulating Fully Organic Scintillating Crystalline Colloidal Arrays with Tunable Emission,” Optical Society of America (OSA) Advanced Photonics Congress (APS): Novel Optical Materials and Applications (NOMA), Virtual.
    • Eric's talk: E. Zhang, A. Dickey, Y. Bandera, H. W. Jones, I. Foulger, J. Kolis, S. H. Foulger. "A High Temperature Approach to Synthesize New Optical and X-ray Luminescent Nanomaterials for Biomedical Applications," Optical Society of America (OSA) Advanced Photonics Congress (APS): Novel Optical Materials and Applications (NOMA), Virtual.
  • news: sequential intraparticle Förster resonance energy transfer for multi-wavelength bioimaging

    The Foulger group published an article in Optical Materials Express that presented a general strategy for creating core/shell nanoparticles composed of a silica core over which a propargyl methacrylate (PMA) shell was polymerized around. To employ the shell coating, the surface of the silica nanoparticles (SiNPs) was modified with an alkene-terminated organometallic silane linker that allowed for the covalent attachment of a poly(propargyl methacrylate) (pPMA) shell. The alkyne groups resulting from the pPMA shell were utilized in copper(I)-catalyzed azide/alkyne cycloaddition (CuAAC) reactions to attach azide-modified Förster resonance energy transfer (FRET) pairs of naphthalimide (azNap), rhodamine B (azRhod), and silicon phthalocya- nine (azSiPc) derivatives to the shell surface. The luminescence of the system was manipulated by the covalent attachment of one, two, or three of the fluorophores resulting in no energy transfer, one energy transfer, or two energy transfers, respectively. When all three fluorophores were attached to the core/shell particles, an excitation of azNap with a wavelength of 400 nm resulted in the sequential energy transfer between two FRET pairs and the sole emission of azSiPc at 670 nm. These particles may have applications as bioimaging probes as their luminescence is easily detected using fluorescence microscopy.

  • news: ACS spring national meeting / april 5 - 16, 2021 - virtual

    Ben Grant, Haley Jones, Sarah Mell, and Eric Zhang recently gave live talks via Zoom at the Spring National Meeting of the American Chemical Society (ACS). The title of the talks were.....

    • Ben's talk: B. Grant, Y. Bandera, S. H. Foulger. “Organic electrochemical transistor based on a self-doped PEDOT polymer with multiple functions: Arithmetic, Boolean logic, electrochromism, and neuromorphic computing,” ACS Spring 2021 [PMSE].
    • Haley's talk: H. W. Jones, Y. Bandera, S. H. Foulger. “Radioluminescent crystalline colloidal arrays: Fine-tuning color characteristics via X-ray induced, sequential Förster Resonance Energy Transfer (FRET),” ACS Spring 2021 [POLY].
    • Sarah's talk: S. Mell, H. W. Jones, Y. Bandera, S. H. Foulger. “Organic X-ray radioluminescent crystalline colloidal arrays encapsulated in poly(ethylene glycol) methacrylate-based hydrogel films with a tunable emission,” ACS Spring 2021 [POLY].
    • Eric's talk: E. Zhang, A. Dickey, Y. Bandera, H. W. Jones, I. Foulger, J. Kolis, S. H. Foulger. "Expanding the colloidal toolkit for optogenetics and x-ray active nanoparticles," ACS Spring 2021 [COLL].
  • news: OSA biophotonics congress / april 12 - 16, 2021 - virtual

    Haley Jones and Sarah Mell recently presented posters at the Optical Society of America (OSA) 2021 Biophotonics Congress. The title of the posters were.....

    • Haley's poster: H. W. Jones, Y. Bandera, S. H. Foulger. "Fully organic, x-ray radioluminescent crystalline colloidal arrays for next-generation bioimaging," OSA Biophotonics Congress 2021.
    • Sarah's poster: S. Mell, H. W. Jones, Y. Bandera, S. H. Foulger. "Organic x-ray radioluminescent crystalline colloidal arrays encapsulated in poly(ethylene glycol) methacrylate-based hydrogel films," OSA Biophotonics Congress 2021.
  • news: Advanced Materials Summer Research Program (REU) / 2021

    We are happy to announce that the materials science research experience for undergraduates (REU) summer program in the Center for Optical Materials Science and Engineering Technologies (COMSET) at Clemson University is accepting applications for summer 2021.

    This competitive REU program is sponsored by the National Science Foundation. Students will participate in a 10-week internship under the guidance of faculty mentors. REU students will also attend weekly seminars focused on professional development. At the end of the internship, students will be expected to prepare and present a research poster and prepare their application for the NSF Graduate Research Fellowship Program.

    What to expect during the program:

    • Stay on Clemson’s campus with housing, parking and bus service throughout the area
    • $6,000 stipend
    • Opportunity to meet other students at Clemson doing summer programs from around the world; while working with Clemson students
    • Vast Alumni network
    • Group lunches and activities with the program
    • Help with presentations and write-ups to create a poster to present at conferences
    • Potential for publishing papers
    • Hands-on equipment use
    • Electron Microscopes

    Move in date: May 16, 2021 Program Start Date: May 17, 2021
    Move out date: July 24, 2021 Program End Date: July 23, 2021

    Want to join?
    To apply, please get an application from here: https://drive.google.com/file/d/1qXAFSiB-V7S6MQGbmNEBFdeZsSIsD2ax/view and submit by March 31, 2021. If you have any questions, please contact Dr. Mariela Fernandez at marielf@clemson.edu or 864-656-2389.

  • news: random pic of the group at ACS 257th national meeting in orlando, florida

    acs_orlando 02

    Here are some random pictures of the The Foulger Group at the 257th American Chemical Society National Meeting in Orlando, Florida.

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  • news: using polymers to mimic biological synapses

    The Foulger group has been active in developing non-conjugated polymers for use as synaptic mimics and recently published an article in Advanced Electronic Materials on a carbazole derivatized n‐alkyl methacrylate polymeric memristor which acts as a flexible synaptic substitute. A biological synapse is a junction between two nerve cells and consists of a tiny gap across which electrical impulses pass by diffusion of a neurotransmitter and are the basis for cognitive responses in living creatures. The group's aim is to develop polymeric equivalents that can be printed in "physical" neural networks.

  • news: prof. foulger highlighted in clemson world

    Clemson World recently presented an article on Prof. Foulger's research effort in non-invasive optogenetics. Foulger (the primary investigator) and two collaborators, neuroscientists Lori McMahon at the University of Alabama at Birmingham and Jason Weick at the University of New Mexico, recently won $6 million grant from the National Science Foundation to develop X-ray-triggered radioluminescent particles to control brain functions. Foulger, as the materials scientist and director of Clemson’s Center for Optical Materials Science and Engineering, is responsible for creating the scintillating nanoparticles.

  • news: ways to enhance cancer cell death through apoptosis

    The Foulger group published an article in Biomaterials Science that presented a general strategy for enhancing apoptosis in cancer cells by reducing "survivin", a member of the family of inhibitor of apoptosis proteins (IAP). To do this, sub-100 nm poly(propargyl acrylate) (PA) particles were surface modified through the copper-catalyzed azide/alkyne cycloaddition of an azide-terminated survivin ligand derivative (azTM) originally proposed by Abbott Laboratories and speculated to bind directly to survivin (protein) at its dimer interface. Using affinity pull-down studies, it was determined that the PA/azTM nanoparticles selectively bind survivin and the particles can enhance apoptotic cell death in glioblastoma cell lines and other survivin over-expressing cell lines, such as A549 and MCF7, relative to cells incubated with the original Abbott-derived small molecule inhibitor.

  • news: optogenetic technologies and applications meeting (AlChE) / december 8 - 10, 2019 - boston, ma

    Eric Zhang recently went to the AlChE Optogenetic Technologies and Applications Meeting in Boston, MA. The title of his talk was.....

    • Eric's talk: E. Zhang, A. Dickey, Y. Bandera, H. W. Jones, I. Foulger, J. Ballato, J. Kolis, S. H. Foulger. "A material's approach to noninvasive optogenetics by coupling x-rays and sub-100 nm silicate scintillators," Optogenetics Technologies and Applications, Boston, MA.
  • news: materials research society national meeting (MRS) / december 1-6, 2019 - boston, ma

    Ben Grant and Eric Zhang recently went to the Fall 2019 Materials Research Society (MRS) National Meeting in Boston, MA. The title of the talks were.....

    • Ben's talk: B. Grant, T. McFarlane, Y. Bandera, S. H. Foulger. “Polymeric memristors from n-alkyl methacrylate as an artificial synapse,” Materials Research Society Fall 2019 Meeting, Boston, MA.
    • Eric's talk: E. Zhang, A. Dickey, Y. Bandera, H. W. Jones, I. Foulger, J. Ballato, J. Kolis, S. H. Foulger. "High temperature crystallization of monodisperse and optically active lanthanide nanoparticulates for noninvasive optogenetics," Materials Research Society Fall 2019 Meeting, Boston, MA.
  • news: 26th EPSCoR national conference (NSF) / october 27 - 30, 2019 - columbia, sc

    Ben Grant recently went to the NSF 26th EPSCoR National Conference in Columbia, SC. The title of his talk was....

    • Ben's talk: B. Grant, Y. Bandera, S. H. Foulger. “Memory resistive devices from n-alkyl methacrylate polymers implemented as an artificial synapse," NSF 26th EPSCoR National Conference, Columbia, SC.
  • news: 71st SERMACS meeting / october 20 - 23, 2019 - savannah, ga

    Haley Jones, Ben Grant, Eric Zhang, and Prof. Foulger recently went to the 71st Southeastern Regional Meeting of the American Chemical Society in Savannah, GA. The title of the talks were.....

    • Haley's talk: H. W. Jones, Y. Bandera, S. H. Foulger. “Hydrogel stabilized, fully organic, x-ray radioluminescent crystalline colloidal arrays,” 71st Southeastern Regional Meeting of the American Chemical Society, Savannah, GA.
    • Eric's talk: E. Zhang, A. Dickey, Y. Bandera, I. Foulger, J. Anker, J. Ballato, J. Kolis, S. H. Foulger. "Development of a high temperature multi-composite reactor: Monodisperse nanoscintillators for noninvasive optogenetics," 71st Southeastern Regional Meeting of the American Chemical Society, Savannah, GA.
    • Ben's talk: B. T. Grant, Y. Bandera, S. H. Foulger. “Polymeric memory resistive devices from poly(n-alkyl methacrylate)s as an artificial synapse,” 71st Southeastern Regional Meeting of the American Chemical Society, Savannah, GA.
  • news: using scintillating colloids in optogenetics

    The Foulger group recently published an article in Frontiers in Synaptic Neuroscience that presented a general strategy for the use of radioluminescent particles (RPLs) in optogenetics. Optogenetics is widely used in neuroscience to control neural circuits. However, non-invasive methods for light delivery in brain are needed to avoid physical damage caused by current methods. One potential strategy could employ x-ray activation of radioluminescent particles (RPLs), enabling localized light generation within the brain. RPLs composed of inorganic scintillators can emit light at various wavelengths depending upon composition. Cerium doped lutetium oxyorthosilicate (LSO:Ce), an inorganic scintillator that emits blue light in response to x-ray or ultraviolet (UV) stimulation, could potentially be used to control neural circuits through activation of channelrhodopsin-2 (ChR2), a light-gated cation channel. Whether inorganic scintillators themselves negatively impact neuronal processes and synaptic function is unknown, and was investigated here using cellular, molecular, and electrophysiological approaches. As proof of principle, we applied UV stimulation to 4 μm LSO:Ce particles during whole-cell recording of CA1 pyramidal cells in acute hippocampal slices from mice that expressed ChR2 in glutamatergic neurons. We observed an increase in frequency and amplitude of spontaneous excitatory postsynaptic currents (sEPSCs), indicating activation of ChR2 and excitation of neurons. Importantly, LSO:Ce particles did not affect survival of primary mouse cortical neurons, even after 24 h of exposure, and therefore, LSO:Ce inorganic scintillators are potentially viable for use as a new light delivery system for optogenetics. The article is located here .

  • news: crystal growth and assembly (gordon research conference) / june 23 - 28, 2019 - manchester, NH

    Eric Zhang recently went to the Crystal Growth and Assembly Gordon Research Conference in Manchester, NH. Eric Presented at both the conference and seminar associated with this event. The title of his talks were.....

    • Gordon Research Conference: E. Zhang, A. Dickey, Y. Bandera, J. Ballato, J. Kolis, S. H. Foulger. "Control in high temperature crysatllization of monodisperse and optically active nanomaterials for noninvasive optogenetics," Crystal Growth and Assembly GRC, Manchester, NH.
    • Gordon Research Seminar: E. Zhang, A. Dickey, Y. Bandera, J. Ballato, J. Kolis, S. H. Foulger. "Control in high temperature crysatllization of monodisperse and optically active nanomaterials for noninvasive optogenetics," Crystal Growth and Assembly GRS, Manchester, NH.
  • news: original paper on hydrogel encapsulation crystalline colloidal arrays (CCA) sees increase in citations

    The original Langmuir publication (Langmuir 2001, 17, 19, 6023-6026) on the technique developed in the Foulger Group back in 2001 for the hydrogel encapsulation of crystalline colloidal arrays (CCA) has received a number of recent citations. These photonic crystals have seen a surge in interest from the scientific community, such as this recent publication in ACS Nano that is based on our prior work. "Mechanochromic response of poly(ethylene glycol) methacrylate hydrogel encapsulated crystalline colloidal arrays" describes how electrostatic stabilized polystyrene arrays of approximately 100 nm particles can be encapsulated in a polyethylene-oxide hydrogel to stabilize the arrays from mechanical and ionic disturbances that would destroy the crystal. This technique has been adopted by a number of groups to produce robust films from the delicate arrays.

  • news: MADE in sc | sc EPSCoR state conference / april 12, 2019 - greenville, sc

    Ben Grant recently went to the MADE in SC | SC EPSCoR 2019 State Conference in Greenville, SC. The title his talk was.....

    • Ben's talk: B. Grant, Y. Bandera, S. H. Foulger. “Synaptic mimicry utilizing n-alkyl methacrylate polymers,” MADE in SC/EPSCoR, Greenville, SC.
  • news: excellence in graduate polymer research symposium at the 275th ACS national meeting / march 31 - april 4, 2019 - orlando, fl

    Eric Zhang was nominated to present in the Excellence in Graduate Polymer Research Symposium hosted by the POLY division at the Spring 2019 American Chemical Society National Meeting in Orlando, FL. In this symposium he was awarded Best Poster Presentation from the Journal of Applied Polymer Science. The title of his talk was...

    • Eric's talk: E. Zhang, A. Dickey, M. K. Burdette, M. Rich, K. Cannon, I. Bandera, M. Bolding, J. Ballato, J. W.Kolis, S. H. Foulger. "pDVB old polymer newtricks: Coupling of organic and inorganic chemistry for nanoparticle synthesis and noninvasive optogenetics applications," 257th ACS National Meeting, Orlando, FL. POLY 339

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