Materials World Network: US-Russia Collaboration on Responsive Micelles at Surfaces – A combined Experimental and Theoretical Approach Svetlana Sukhishvili,

Slides:

Advertisements

Similar presentations

Development and Application of a New Method for Epitaxial Growth of Metals, Alloys and Multilayers by Surface Limited Redox Replacement Nikolay Dimitrov,

Advertisements

Molecularly, collagen exists as a triple helical structure that is stabilized by the presence of the amino acid hydroxyproline. These triple helices further.

The Micelle Shuttle: Automatic, Reversible Extraction Timothy P. Lodge, University of Minnesota –Twin Cities, DMR Ionic liquids have received much.

Dielectric and Piezoelectric Properties of Epitaxial Ferroelectric Bilayers Alexei Y. Grigoriev, University of Tulsa, DMR Thermodynamic theory.

Electronic structure and mechanism for martensitic transformation in in Co 2 NiGa Shape Memory Alloys. Computational and Experimental Design of Novel CoNiGa.

Electronic structure and mechanism for martensitic transformation in in Co 2 NiGa Shape Memory Alloys. Computational and Experimental Design of Novel CoNiGa.

REU Site: Characterization of Advanced Materials David F. Bahr, Washington State University, DMR Over the past 9 years, the School of Mechanical.

We have discovered that exposing the surface of PMMA with halogenated solvents can change the adhesion of Au or Pt thin films from nearly 0% to over 90%.

Stilbene based alternating copolymers exhibit semi-rigid backbones due to the steric crowding of the extra phenyl group (vis-à-vis styrene copolymers)

Materials World Network: Self-assembled Nanocomposite Magnetoelectric Thin Films Nian Sun, Northeastern University, DMR Intellectual Merit:Fig.

Immunomodulatory ultrathin coatings for pancreatic islet transplantation Eugenia Kharlampieva, University of Alabama at Birmingham, DMR Transplantation.

When and why are ultrathin films of metallic oxides not metallic? Jiandi Zhang, Louisiana State University & Agricultural and Mechanical College, DMR

Materials World Network: Design of responsive materials via mixed polymer brush approach Igor Luzinov, Clemson University, DMR The focus of this.

National Science Foundation Silicon Carbide Nanowires on Graphene – Synthesis, Characterization and Application Roya Maboudian, University of California-Berkeley,

National Science Foundation Materials World Network-- Ultrafast Switching of Phase Change Materials: Combined Nanosecond and Nanometer Exploration Bryan.

Optoelectronic Supramolecular Block-Copolymer Assemblies Aided by Donor-Acceptor Interactions Alexander Sidorenko, University of the Sciences in Philadelphia,

Design of Nanoporous Polymers with New Functional Capabilities Using Monomer Self-Assembly Douglas Gin, University of Colorado at Boulder, DMR

Hydrogen-Bonding Assisted Self-Assembly of Lamello- Columnar Phases from Discotic Supermolecules L ei Zhu (University of Connecticut) DMR Hydrogen-bonding.

NSF-Europe Materials Collaboration: Self-Organized Nanostructured Thin Films for Catalysis in Perovskite Related Membrane Reactors (DMR ) PI: Jag.

Equilibrium Pathway of Polymer Nanometer Films Equilibrium Pathway of Polymer Nanometer Films Ophelia K. C. Tsui, Trustees of Boston University, DMR

CAREER: Development of Novel Ternary Copolymer Assemblies Robert B. Grubbs, Dartmouth College, DMR Figure 1. (a) Synthesis, (b) transmission electron.

Polymeric Micelles PM are formed from the association of block copolymers. Block copolymers micelles have the capacity to increase the solubility of hydrophobic.

This EAGER project is aimed at investigating the edge- on chemical gating effect on electronic properties of semiconducting molecules and materials. Three.

This activity presents a comparison study between nanocubes (NC) and nano-octahedra (NO) as well as (100) and (111) thin films of Pt 4 Cu, all used as.

“Bottom-Up” Design of Nanostructured Conducting Polymer Thin Films Evgueni E. Nesterov, Louisiana State University & Agricultural and Mechanical College,

National Science Foundation Ultrafast Phase Transition and Critical Issues in Structure-Property Correlations of Vanadium Oxide Jagdish Narayan, North.

Figure 1. (a) SANS of responsive star PDMAEMA with increasing temperature, the solid lines represent model fitting. (b) Schematic representation of the.

Objectives Design, synthesis, and systematic study of “smart” water-soluble polymers that respond sharply and reversibly (first-order transitions) to temperature.

The ultimate goal of this work is to: 1) fabricate inexpensive MMSMAs in polycrystalline bulk form having large magnetic field ‐ induced actuation work.

Systematic increase of chain stiffness, via polymer backbone steric crowding from stilbene incorporation, resulted in unique solution and solid state properties.

National Science Foundation Materials for Optical Properties by Design at the UV Range Leah Bergman, University of Idaho, DMR Outcome: The researchers.

Chain Dynamics and Layering within Polyelectrolyte Multilayer Films Svelana A. Sukhishvili, Stevens Institute of Technology, DMR Understanding.

Hydrogen Bond Dynamics in Concentrated Salt Solutions Ultrafast Two Dimensional Infrared Vibrational Echo Experiments Michael D. Fayer, Stanford University,

What is Nanionics? Nanoionics centers on the manipulation of space charge at ionic interfaces or junctions to control ionic conduction. Our Vision: Explore/exploit.

Polymeric Micelles Dr. Aws Alshamsan Department of Pharmaceutics Office: AA87 Tel:

Thrust 1 One thrust of our research is focused on the use of free radical alternating copolymerization to prepare families of precisely charged copolymers.

Chain Dynamics and Layering within Polyelectrolyte Multilayer Films Svetlana A. Sukhishvili, Stevens Institute of Technology, DMR Understanding.

Fuel Cell Electrode Properties Relva C. Buchanan, University of Cincinnati Main Campus, DMR Thin film materials with properties suitable for fuel.

Direct Measurements of Fundamental Sintering Parameters in Nanoparticles Desiderio Kovar, University of Texas at Austin, DMR Metal nanoparticles.

100nm c d a b Figure 2. Island shapes (AFM phase images) for different metal-species/Si-orientation combinations: (a) Au/Si(001), (b) Au/Si(111), (c) Sn/Si(110),

The use of polymer layers in light emitting devices has many applications in flexible devices and electronics, and relies on the ability of these polymers.

Surface state Dirac point Fermi level Bi 2 Se 3 GaAs Bi 2 Se 3 Background: During the past two years, studies involving topology have led to predictions.

Self-Assembled Nanoparticle Array for Spintronics and High Frequency Materials DMR PI: Hao Zeng W.L. Shi, Y. Sahoo and Hao Zeng, et al., “Anisotropic.

The main goal of our project is to explore principles and develop strategies for transforming hydrogen-bonded multilayers into ultrathin highly functional.

Fiber-Optic Optofluidic Platform for in-situ Process Monitoring of Layer-by-Layer Assembled Functional Polyelectrolyte Thin Films Henry H. Du, Stevens.

Solution Aging Impact on the Voiding in Cu-Solder Joints A completely electrochemical scheme has been proposed for synthesis of nanoporous Au (NPG) based.

In situ X-ray Diffraction Study of High Performance Organic Semiconductor Polymorphism Zhenan Bao, Stanford University, DMR Flexible, transparent.

CAREER: Synthesis and Electronic/Electrical Properties of Carbon Nanotube Junctions Wenzhi LiFlorida International UniversityDMR One of the objectives.

Approaches to the fabrication of surfaces that combine methods for the topographic patterning of soft materials with opportunities for facile, post-fabrication.

Optoelectronic Supramolecular Block-Copolymer Assemblies Aided by Donor- Acceptor Interactions Alexander Sidorenko, University of the Sciences in Philadelphia,

CAREER: An Integrated Research and Education Program for Engineering Functional Block Copolymers Yueh-Lin (Lynn) Loo, University of Texas at Austin, DMR

The 2006 REU Summer Symposium marked the end of PSU's 8-week summer undergraduate research program where each participant gave a 15-minute power point.

National Science Foundation Outcome: Epitaxial integration of VO 2 based thin film heterostructures on sapphire and silicon substrates of various orientations.

From quasi-2D metal with ferromagnetic bilayers to Mott insulator with G-type antiferromagnetic order in Ca 3 (Ru 1−x Ti x ) 2 O 7 Zhiqiang Mao, Tulane.

Doped rare-earth manganese oxides (manganites) exhibit a wide variety of physical phenomena due to complex interplay of electronic, magnetic, orbital,

JMU Center for Materials Science Phase Kinetics and Surface Modification of Polymer Nanocomposite Thin Films Polymer crystallization observed in POSS-MA.

One-pot Synthesis of Dumbbell Polymers through Chain Walking Polymerization Zhibin Guan, University of California - Irvine DMR Figure 1. AFM images.

Studies on Polymer Glasses, Melts, and Solutions Jane E. G. Lipson, Dartmouth College, DMR A polymeric sample in the bulk is characterized, in.

Block Liposomes from Curvature Stabilizing Lipids: Connected Nanotubes, -rods, or -spheres Cyrus R. Safinya, University of California-Santa Barbara, DMR.

Creation and Characterization of Carbon Nanotube Foams and Related Materials Pulickel Ajayan & Ravi Kane, Rensselaer Polytechnic Institute, DMR

The main goal of our project is to explore principles and develop strategies for transforming hydrogen-bonded multilayers into ultrathin highly functional.

NSF-Europe Materials Collaboration: Self-Organized Nanostructured Thin Films for Catalysis in Perovskite Related Membrane Reactors Jagannathan Sankar,

CAREER: Shape Responses of Ultrathin Hydrogel Microcapsules Eugemoa Kharlampieva, University of Alabama at Birmingham, DMR Environmental control.

Spin at the Nanoscale: Material Synthesis and Fundamental Physics Min Ouyang, University of Maryland – College Park, DMR In the FY08, we continued.

Tuning magnetic anisotropy in (001) oriented L1 0 (Fe 1-x Cu x ) 55 Pt 45 films Kai Liu, University of California-Davis, DMR Meeting the demand.

National Science Foundation Epitaxial VO 2 /TiO 2 heterostructure Integrated with Sapphire and Si(100) Substrates for multifunctional applications Jagdish.

Materials World Network: US-Russia Collaboration on Responsive Micelles at Surfaces – A Combined Experimental and Theoretical Approach Svetlana A. Sukhishvili,

Polyatomic Adsorbates on Carbon Nanotube Bundles Aldo D. Migone, Southern Illinois University Carbondale, DMR Intellectual merit: Experimental.

Single-molecule transistors: many-body physics and possible applications Douglas Natelson, Rice University, DMR (a) Transistors are semiconductor.

NSF MRSEC DMR 2016 University of Pennsylvania - IRG-1:

Presentation transcript:

Materials World Network: US-Russia Collaboration on Responsive Micelles at Surfaces – A combined Experimental and Theoretical Approach Svetlana Sukhishvili, Stevens Institute of Technology, DMR The objective of this project is to explore layer-by-layer (LbL) self-assembly of temperature- and pH-responsive block copolymer micelles with polyelectrolytes (PEs) at surfaces. Using synthesized neutral and ionic diblock copolymers, we have constructed temperature- and pH- responsive micelles and deposited them within thin surface coatings using LbL technique. Our results are featured in six papers published or under revision and four conference proceedings. In solutions of micelles with weak PE coronae, we have observed novel pH-induced phase transitions between large, weakly charged and small, strongly charged micelles (Fig. 1) 1. Among micelles with PE cores, we found a new type of micelle with ionomer-like cores 2. Both phenomena were studied theoretically and experimentally. At surfaces, we have constructed novel biocompatible, pH- stable 3,4, as well as temperature-erasable LbL films 5. We showed that within multilayers, micelles with either pH- dissolvable or temperature-dissolvable cores were stabilized due to binding with a homopolymer, and provided control over reversible film swelling and delivery of incorporated functional molecules (Fig. 2) 6. Future applications of such functional polymer films include controlled delivery of chemicals from surfaces. Fig. 1. pH-induced changes of size of PDMA-b-PNIPAM 7 micelles. Insets: AFM images of smaller and larger micelles 8. Fig. 2. Temperature-induced swelling (A), micellar core expansion (B,C), and reversible release of pyrene from (PVPON-b-PNIPAM micelles/PMAA) 4 films 9 (D, E).

International collaboration with Russian counterparts has grown stronger, and included trips of graduate students and the PI to Russia, joint participation in an international conference, (Fig.1), writing papers and planning to enhance an international aspect of a student conference in St. Petersburg (Russia) in October Results of the project have been incorporated into two 2008/2009 graduate courses: CH671 “Polymers at Solid-Liquid Interfaces” and CH525 “Techniques of Surface and Nanostructure Characterization”, and presented in seven invited talks at universities and international conferences 1, as well as at the Research and Entrepreneurship Day at Stevens in May 2009 which gathers a broad audience of NY/NJ entrepreneurs, National Lab representatives, and high school teachers. Importantly, the project has further energized the involvement of undergraduate and high school students in our research (Fig.2). Technological output of our research includes development of environmentally triggered polymer matrices for controlled delivery of active components from surfaces, such as coatings on dental implant surfaces. Fig. 1. US-Russia collaboration developing. Left: PI Sukhishvili (US, left) and Kramarenko (Russia, right) discuss results of the project in December Right: Ph.D. students Elena Nyrkova (Russia, left) and Irem Erel (US, right) during discussion of their joint paper. Materials World Network: US-Russia Collaboration on Responsive Micelles at Surfaces – A combined Experimental and Theoretical Approach Svetlana Sukhishvili, Stevens Institute of Technology, DMR Fig. 2. Graduate, undergraduate and high-school students participate in the project in summer of 2009: senior students Lauren Spagnuolo (in grey, left; Stevens, NJ), and Diana Lee (in grey, right; The Cooper Union, NY), and high school students Diego Barriga (in white, left; ACS SEED program) and Dipixa Rathod (in white, right; Partners in Science Program, Liberty Science Center, NJ).