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Programmed Self-Assembly of Hierarchical Nanostructures through Protein–Nanoparticle Coengineering

Mout, Rubul; Yesilbag Tonga, Gulen; Wang, Li-Sheng; Ray, Moumita; Roy, Trinava; Rotello, Vincent M.

 Customer publications

Programmed Self-Assembly of Hierarchical Nanostructures through Protein–Nanoparticle Coengineering

Mout, Rubul; Yesilbag Tonga, Gulen; Wang, Li-Sheng; Ray, Moumita; Roy, Trinava; Rotello, Vincent M.

Hierarchical organization of macromolecules through self-assembly is a prominent feature in biological systems. Synthetic fabrication of such structures provides materials with emergent functions. Here, we report the fabrication of self-assembled superstructures through coengineering of recombinant proteins and nanoparticles. These structures feature a highly sophisticated level of multilayered…
An addressable packing parameter approach for reversibly tuning the assembly of oligo(aniline)-based supra-amphiphiles

Lyu, Wei; Alotaibi, Maha; Alexander Bell, O.; Watanabe, Kazuyoshi; Harniman, Robert; M. Mills, Benjamin; M. Seddon, Annela; E. Rogers, Sarah; M. King, Stephen; Yan, Wei; J. Faul, Charl F.

 Customer publications

An addressable packing parameter approach for reversibly tuning the assembly of oligo(aniline)-based supra-amphiphiles

Lyu, Wei; Alotaibi, Maha; Alexander Bell, O.; Watanabe, Kazuyoshi; Harniman, Robert; M. Mills, Benjamin; M. Seddon, Annela; E. Rogers, Sarah; M. King, Stephen; Yan, Wei; J. Faul, Charl F.

Chemical Science, 2018, vol 9, 19, pp. 4392-4401DOI:10.1039/C8SC00068AVisit the full articleBack to the overview
Inverting substitution patterns on amphiphilic cyclodextrins induces unprecedented formation of hexagonal columnar superstructures

Champagne, Pier-Luc; Ester, David; Zeeman, Michael; Zellman, Carson; Williams, Vance E.; Ling, Chang-Chun

 Customer publications

Inverting substitution patterns on amphiphilic cyclodextrins induces unprecedented formation of hexagonal columnar superstructures

Champagne, Pier-Luc; Ester, David; Zeeman, Michael; Zellman, Carson; Williams, Vance E.; Ling, Chang-Chun

Cyclodextrins (CDs) constitute a unique class of macrocycles that possess a truncated cone-shaped cavity. Chemical modifications with simple hydrophobic groups can generate amphiphilic derivatives capable of self-assembling into thermotropic liquid crystals. Without the help of introduced mesogenic functionalities, almost all known amphiphilic CDs form smectic mesophases. Here we report that…
Electron Paramagnetic Resonance Spectroscopic Study of Ascorbate Oxidase Immobilized on Mesoporous Silica Materials

Umamaheswari, V.; Zhou, Zhou; Pöppl, Andreas; Schindler, Torben; Unruh, Tobias; Hartmann, Martin

 Customer publications

Electron Paramagnetic Resonance Spectroscopic Study of Ascorbate Oxidase Immobilized on Mesoporous Silica Materials

Umamaheswari, V.; Zhou, Zhou; Pöppl, Andreas; Schindler, Torben; Unruh, Tobias; Hartmann, Martin

0, 2017, DOI:Visit the full articleBack to the overview
Identifying anisotropy in seemingly random CNT networks using terahertz techniques

Bârsan, Oana A.; He, Guoqiang; Alkorre, Hameda; Stiens, Johan; de With, Gijsbertus

 Customer publications

Identifying anisotropy in seemingly random CNT networks using terahertz techniques

Bârsan, Oana A.; He, Guoqiang; Alkorre, Hameda; Stiens, Johan; de With, Gijsbertus

Characterizing and understanding carbon nanotube (CNT)-based polymer composites plays a crucial role for the ability to customize their properties. The (an)isotropy of CNT networks inside a composite can have significant effects on the final material's properties. However, characterizing the (an)isotropy of seemingly random CNT networks can be difficult using standard…
Two-Step Delamination of Highly Charged, Vermiculite-like Layered Silicates via Ordered Heterostructures

Daab, Matthias; Rosenfeldt, Sabine; Kalo, Hussein; Stöter, Matthias; Bojer, Beate; Siegel, Renée; Förster, Stephan; Senker, Jürgen; Breu, Josef

 Customer publications

Two-Step Delamination of Highly Charged, Vermiculite-like Layered Silicates via Ordered Heterostructures

Daab, Matthias; Rosenfeldt, Sabine; Kalo, Hussein; Stöter, Matthias; Bojer, Beate; Siegel, Renée; Förster, Stephan; Senker, Jürgen; Breu, Josef

Because of strong Coulomb interactions, the delamination of charged layered materials becomes progressively more difficult with increasing charge density. For instance, highly charged sodium fluorohectorite (Na0.6Mg2.4Li0.6Si4O10F2, Na-Hec) cannot be delaminated directly by osmotic swelling in water because its layer charge exceeds the established limit for osmotic swelling of 0.55 per…
High Energy Density in Azobenzene-based Materials for Photo-Thermal Batteries via Controlled Polymer Architecture and Polymer-Solvent Interactions

Jeong, Seung Pyo; Renna, Lawrence A.; Boyle, Connor J.; Kwak, Hyunwook S.; Harder, Edward; Damm, Wolfgang; Venkataraman, Dhandapani

 Customer publications

High Energy Density in Azobenzene-based Materials for Photo-Thermal Batteries via Controlled Polymer Architecture and Polymer-Solvent Interactions

Jeong, Seung Pyo; Renna, Lawrence A.; Boyle, Connor J.; Kwak, Hyunwook S.; Harder, Edward; Damm, Wolfgang; Venkataraman, Dhandapani

Energy densities of ~510 J/g (max: 698 J/g) have been achieved in azobenzene-based syndiotactic-rich poly(methacrylate) polymers. The processing solvent and polymer-solvent interactions are important to achieve morphologically optimal structures for high-energy density materials. This work shows that morphological changes of solid-state syndiotactic polymers, driven by different solvent…
Structure formation in nanophase-separated systems with lamellar morphology: Comb-like vs. linear precision polymers

Danke, Varun; Gupta, Gaurav; Reimann, Sophie; Binder, Wolfgang H.; Beiner, Mario

 Customer publications

Structure formation in nanophase-separated systems with lamellar morphology: Comb-like vs. linear precision polymers

Danke, Varun; Gupta, Gaurav; Reimann, Sophie; Binder, Wolfgang H.; Beiner, Mario

We report findings of a comparative study of a comb-like polymer, poly(1,4-phenylene-2,5-n-didecyloxy terephthalate) and a linear chain precision polymer consisting of a methyl protected 2,6-diaminopyridine group after every 20th methylene unit of a linear saturated polyethylene chain . Both polymers exhibit lamellar morphologies related to a nanophase separation of the…
Effect of Nanodiamond (ND) Surface Functionalization on the Properties of ND/PEEK Composites

Wahab, Z.; Marsh, Z. M.; Tessema, A.; Kidane, A.; Stefik, M.; Anneaux, B. L.; Ploehn, H. J.

 Customer publications

Effect of Nanodiamond (ND) Surface Functionalization on the Properties of ND/PEEK Composites

Wahab, Z.; Marsh, Z. M.; Tessema, A.; Kidane, A.; Stefik, M.; Anneaux, B. L.; Ploehn, H. J.

This paper explores the effect of nanodiamond (ND) surface chemistry on the structure and properties of composites of ND melt-blended with poly(ether-ether-ketone) (PEEK). ND functionalized with phenylphosphonate (PPA) resulted in ND/PEEK composites with improved filler dispersion based on visual observations and surface topography measurements. As-received oxidized ND (OND) reduces PEEK's…
3D printing of CNT- and graphene-based conductive polymer nanocomposites by fused deposition modeling

Gnanasekaran, K.; Heijmans, T.; van Bennekom, S.; Woldhuis, H.; Wijnia, S.; de With, G.; Friedrich, H.

 Customer publications

3D printing of CNT- and graphene-based conductive polymer nanocomposites by fused deposition modeling

Gnanasekaran, K.; Heijmans, T.; van Bennekom, S.; Woldhuis, H.; Wijnia, S.; de With, G.; Friedrich, H.

Fused deposition modeling (FDM) is limited by the availability of application specific functional materials. Here we illustrate printing of non-conventional polymer nanocomposites (CNT- and graphene-based polybutylene terephthalate (PBT)) on a commercially available desktop 3D printer leading toward printing of electrically conductive structures. The printability, electrical conductivity and…
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