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Your search keyword '"Olvera de la Cruz, Monica"' showing total 17 results
Start Over Author "Olvera de la Cruz, Monica" Journal journal of the american chemical society
17 results on '"Olvera de la Cruz, Monica"'

4. Insights into the Enhanced Catalytic Activity of Cytochrome c When Encapsulated in a Metal–Organic Framework

Author

Chen, Yijing, primary, Jiménez-Ángeles, Felipe, additional, Qiao, Baofu, additional, Krzyaniak, Matthew D., additional, Sha, Fanrui, additional, Kato, Satoshi, additional, Gong, Xinyi, additional, Buru, Cassandra T., additional, Chen, Zhijie, additional, Zhang, Xuan, additional, Gianneschi, Nathan C., additional, Wasielewski, Michael R., additional, Olvera de la Cruz, Monica, additional, and Farha, Omar K., additional

Published
2020
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10. All-Polymer Solar Cell Performance Optimized via Systematic Molecular Weight Tuning of Both Donor and Acceptor Polymers

Author

Zhou, Nanjia, primary, Dudnik, Alexander S., additional, Li, Ting I. N. G., additional, Manley, Eric F., additional, Aldrich, Thomas J., additional, Guo, Peijun, additional, Liao, Hsueh-Chung, additional, Chen, Zhihua, additional, Chen, Lin X., additional, Chang, Robert P. H., additional, Facchetti, Antonio, additional, Olvera de la Cruz, Monica, additional, and Marks, Tobin J., additional

Published
2016
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16. Co-assembly of Peptide Amphiphiles and Lipids into Supramolecular Nanostructures Driven by Anion-π Interactions.

Author

Yu Z, Erbas A, Tantakitti F, Palmer LC, Jackman JA, Olvera de la Cruz M, Cho NJ, and Stupp SI

Subjects
Anions chemistry, Hydrophobic and Hydrophilic Interactions, Macromolecular Substances chemistry, Molecular Conformation, Molecular Dynamics Simulation, Lauric Acids chemistry, Lipids chemistry, Nanostructures chemistry, Peptides chemistry, Surface-Active Agents chemistry
Abstract

Co-assembly of binary systems driven by specific non-covalent interactions can greatly expand the structural and functional space of supramolecular nanostructures. We report here on the self-assembly of peptide amphiphiles and fatty acids driven primarily by anion-π interactions. The peptide sequences investigated were functionalized with a perfluorinated phenylalanine residue to promote anion-π interactions with carboxylate headgroups in fatty acids. These interactions were verified here by NMR and circular dichroism experiments as well as investigated using atomistic simulations. Positioning the aromatic units close to the N-terminus of the peptide backbone near the hydrophobic core of cylindrical nanofibers leads to strong anion-π interactions between both components. With a low content of dodecanoic acid in this position, the cylindrical morphology is preserved. However, as the aromatic units are moved along the peptide backbone away from the hydrophobic core, the interactions with dodecanoic acid transform the cylindrical supramolecular morphology into ribbon-like structures. Increasing the ratio of dodecanoic acid to PA leads to either the formation of large vesicles in the binary systems where the anion-π interactions are strong, or a heterogeneous mixture of assemblies when the peptide amphiphiles associate weakly with dodecanoic acid. Our findings reveal how co-assembly involving designed specific interactions can drastically change supramolecular morphology and even cross from nano to micro scales.

Published
2017
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17. Programming Colloidal Crystal Habit with Anisotropic Nanoparticle Building Blocks and DNA Bonds.

Author

O'Brien MN, Lin HX, Girard M, Olvera de la Cruz M, and Mirkin CA

Subjects
Crystallization, Colloids chemistry, DNA chemistry, Nanoparticles chemistry
Abstract

Colloidal crystallization can be programmed using building blocks consisting of a nanoparticle core and DNA bonds to form materials with controlled crystal symmetry, lattice parameters, stoichiometry, and dimensionality. Despite this diversity of colloidal crystal structures, only spherical nanoparticles crystallized with BCC symmetry experimentally yield single crystals with well-defined crystal habits. Here, we use low-symmetry, anisotropic nanoparticles to overcome this limitation and to access single crystals with different equilibrium Wulff shapes: a cubic habit from cube-shaped nanoparticles, a rhombic dodecahedron habit from octahedron-shaped nanoparticles, and an octahedron habit from rhombic dodecahedron-shaped nanoparticles. The observation that one can control the microscopic shape of single crystals based upon control of particle building block and crystal symmetry has important fundamental and technological implications for this novel class of colloidal matter.

Published
2016
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