1
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Han Z, Hayes OG, Partridge BE, Huang C, Mirkin CA. Reversible strain-promoted DNA polymerization. Sci Adv 2024; 10:eado8020. [PMID: 38657068 PMCID: PMC11042731 DOI: 10.1126/sciadv.ado8020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 03/20/2024] [Indexed: 04/26/2024]
Abstract
Molecular strain can be introduced to influence the outcome of chemical reactions. Once a thermodynamic product is formed, however, reversing the course of a strain-promoted reaction is challenging. Here, a reversible, strain-promoted polymerization in cyclic DNA is reported. The use of nonhybridizing, single-stranded spacers as short as a single nucleotide in length can promote DNA cyclization. Molecular strain is generated by duplexing the spacers, leading to ring opening and subsequent polymerization. Then, removal of the strain-generating duplexers triggers depolymerization and cyclic dimer recovery via enthalpy-driven cyclization and entropy-mediated ring contraction. This reversibility is retained even when a protein is conjugated to the DNA strands, and the architecture of the protein assemblies can be modulated between bivalent and polyvalent states. This work underscores the utility of using DNA not only as a programmable ligand for assembly but also as a route to access restorable bonds, thus providing a molecular basis for DNA-based materials with shape-memory, self-healing, and stimuli-responsive properties.
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Affiliation(s)
- Zhenyu Han
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
| | - Oliver G. Hayes
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
| | - Benjamin E. Partridge
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
| | - Chi Huang
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
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2
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Piedmont ER, Christensen EE, Krauss TD, Partridge BE. Amphiphilic dendrons as supramolecular holdase chaperones. RSC Chem Biol 2023; 4:754-759. [PMID: 37799582 PMCID: PMC10549246 DOI: 10.1039/d3cb00086a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 09/05/2023] [Indexed: 10/07/2023] Open
Abstract
The aggregation of incompletely or incorrectly folded proteins is implicated in diseases including Alzheimer's, cataracts, and other maladies. Natural systems express protein chaperones to prevent or even reverse harmful protein aggregation. Synthetic chaperone-like systems have sought to mimic the action of their biological counterparts but typically require substantial optimization and high concentrations to be functional, or lack programmability that would enable the targeting of specific protein substrates. Here we report a series of amphiphilic dendrons that undergo assembly and inhibit the aggregation of fragment 16-22 amyloid β protein (Aβ16-22). We show that monodisperse dendrons with hydrophilic tetraethylene glycol chains and a hydrophobic core based on naphthyl and benzyl ethers undergo supramolecular assembly in aqueous solutions to form sphere-like particles. The solubility of these dendrons and their assemblies is tuned by varying the relative sizes of their hydrophilic and hydrophobic regions. Two water-soluble dendrons are discovered and shown, via fluorescence experiments with rhodamine 6G, to generate a hydrophobic environment. Furthermore, we demonstrate that sub-stoichiometric concentrations of these amphiphilic dendrons stabilize Aβ16-22 peptide with respect to aggregation, mimicking the activity of holdase chaperones. Our results highlight the potential of these amphiphilic molecules as the basis for a novel approach to artificial chaperones that may address many of the challenges associated with existing synthetic chaperone mimics.
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Affiliation(s)
| | - Erin E Christensen
- Department of Chemistry, University of Rochester Rochester NY 14627-0216 USA
| | - Todd D Krauss
- Department of Chemistry, University of Rochester Rochester NY 14627-0216 USA
- Institute of Optics, University of Rochester Rochester NY 14627-0186 USA
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3
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Wang S, Lee S, Du JS, Partridge BE, Cheng HF, Zhou W, Dravid VP, Lee B, Glotzer SC, Mirkin CA. The emergence of valency in colloidal crystals through electron equivalents. Nat Mater 2022; 21:580-587. [PMID: 35027717 DOI: 10.1038/s41563-021-01170-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 11/11/2021] [Indexed: 06/14/2023]
Abstract
Colloidal crystal engineering of complex, low-symmetry architectures is challenging when isotropic building blocks are assembled. Here we describe an approach to generating such structures based upon programmable atom equivalents (nanoparticles functionalized with many DNA strands) and mobile electron equivalents (small particles functionalized with a low number of DNA strands complementary to the programmable atom equivalents). Under appropriate conditions, the spatial distribution of the electron equivalents breaks the symmetry of isotropic programmable atom equivalents, akin to the anisotropic distribution of valence electrons or coordination sites around a metal atom, leading to a set of well-defined coordination geometries and access to three new low-symmetry crystalline phases. All three phases represent the first examples of colloidal crystals, with two of them having elemental analogues (body-centred tetragonal and high-pressure gallium), while the third (triple double-gyroid structure) has no known natural equivalent. This approach enables the creation of complex, low-symmetry colloidal crystals that might find use in various technologies.
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Affiliation(s)
- Shunzhi Wang
- Department of Chemistry, Northwestern University, Evanston, IL, USA
- International Institute for Nanotechnology, Northwestern University, Evanston, IL, USA
| | - Sangmin Lee
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - Jingshan S Du
- International Institute for Nanotechnology, Northwestern University, Evanston, IL, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, USA
| | - Benjamin E Partridge
- Department of Chemistry, Northwestern University, Evanston, IL, USA
- International Institute for Nanotechnology, Northwestern University, Evanston, IL, USA
| | - Ho Fung Cheng
- Department of Chemistry, Northwestern University, Evanston, IL, USA
- International Institute for Nanotechnology, Northwestern University, Evanston, IL, USA
| | - Wenjie Zhou
- Department of Chemistry, Northwestern University, Evanston, IL, USA
- International Institute for Nanotechnology, Northwestern University, Evanston, IL, USA
| | - Vinayak P Dravid
- International Institute for Nanotechnology, Northwestern University, Evanston, IL, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, USA
| | - Byeongdu Lee
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL, USA.
| | - Sharon C Glotzer
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, USA.
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI, USA.
| | - Chad A Mirkin
- Department of Chemistry, Northwestern University, Evanston, IL, USA.
- International Institute for Nanotechnology, Northwestern University, Evanston, IL, USA.
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, USA.
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4
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Percec V, Wang S, Huang N, Partridge BE, Wang X, Sahoo D, Hoffman DJ, Malineni J, Peterca M, Jezorek RL, Zhang N, Daud H, Sung PD, McClure ER, Song SL. An Accelerated Modular-Orthogonal Ni-Catalyzed Methodology to Symmetric and Nonsymmetric Constitutional Isomeric AB 2 to AB 9 Dendrons Exhibiting Unprecedented Self-Organizing Principles. J Am Chem Soc 2021; 143:17724-17743. [PMID: 34637302 DOI: 10.1021/jacs.1c08502] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Five libraries of natural and synthetic phenolic acids containing five AB3, ten constitutional isomeric AB2, one AB4, and one AB5 were previously synthesized and reported by our laboratory in 5 to 11 steps. They were employed to construct seven libraries of self-assembling dendrons, by divergent generational, deconstruction, and combined approaches, enabling the discovery of a diversity of supramolecular assemblies including Frank-Kasper phases, soft quasicrystals, and complex helical organizations, some undergoing deracemization in the crystal state. However, higher substitution patterns within a single dendron were not accessible. Here we report three libraries consisting of 30 symmetric and nonsymmetric constitutional isomeric phenolic acids with unprecedented sequenced patterns, including two AB2, three AB3, eight AB4, five AB5, six AB6, three AB7, two AB8, and one AB9 synthesized by accelerated modular-orthogonal Ni-catalyzed borylation and cross-coupling. A single etherification step with 4-(n-dodecyloxy)benzyl chloride transformed all these phenolic acids, of interest also for other applications, into self-assembling dendrons. Despite this synthetic simplicity, they led to a diversity of unprecedented self-organizing principles: lamellar structures of interest for biological membrane mimics, helical columnar assemblies from rigid-solid angle dendrons forming Tobacco Mosaic Virus-like assemblies, columnar organizations from adaptable-solid angle dendrons forming disordered micellar-like nonhelical columns, columns from supramolecular spheres, five body-centered cubic phases displaying supramolecular orientational memory, rarely encountered in previous libraries forming predominantly Frank-Kasper phases, and two Frank-Kasper phases. Lessons from these self-organizing principles, discovered within a single generation of self-assembling dendrons, may help elaborate design principles for complex helical and nonhelical organizations of synthetic and biological matter.
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Affiliation(s)
- Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Shitao Wang
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Ning Huang
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Benjamin E Partridge
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Xuefeng Wang
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Dipankar Sahoo
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - David J Hoffman
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Jagadeesh Malineni
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Mihai Peterca
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Ryan L Jezorek
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Na Zhang
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Hina Daud
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Paul D Sung
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Emily R McClure
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Se Lin Song
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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5
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Abstract
Proteins are exquisite nanoscale building blocks: molecularly pure, chemically addressable, and inherently selective for their evolved function. The organization of proteins into single crystals with high positional, orientational, and translational order results in materials where the location of every atom can be known. However, controlling the organization of proteins is challenging due to the myriad interactions that define protein interfaces within native single crystals. Recently, we discovered that introducing a single DNA-DNA interaction between protein surfaces leads to changes in the packing of proteins within single crystals and the protein-protein interactions (PPIs) that arise. However, modifying specific PPIs to effect deliberate changes to protein packing is an unmet challenge. In this work, we hypothesized that disrupting and replacing a highly conserved PPI with a DNA-DNA interaction would enable protein packing to be modulated by exploiting the programmability of the introduced oligonucleotides. Using concanavalin A (ConA) as a model protein, we circumvent potentially deleterious mutagenesis and exploit the selective binding of ConA toward mannose to noncovalently attach DNA to the protein surface. We show that DNA association eliminates the major PPI responsible for crystallization of native ConA, thereby allowing subtle changes to DNA design (length, complementarity, and attachment position) to program distinct changes to ConA packing, including the realization of three novel crystal structures and the deliberate expansion of ConA packing along a single crystallographic axis. These findings significantly enhance our understanding of how DNA can supersede native PPIs to program protein packing within ordered materials.
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Affiliation(s)
- Benjamin E Partridge
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Peter H Winegar
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Zhenyu Han
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Chad A Mirkin
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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6
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Ebrahimi SB, Samanta D, Partridge BE, Kusmierz CD, Cheng HF, Grigorescu AA, Chávez JL, Mirau PA, Mirkin CA. Programming Fluorogenic DNA Probes for Rapid Detection of Steroids. Angew Chem Int Ed Engl 2021; 60:15260-15265. [PMID: 33878237 DOI: 10.1002/anie.202103440] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/13/2021] [Indexed: 12/24/2022]
Abstract
The ability of aptamers to recognize a variety of different molecules has fueled their emergence as recognition agents to probe complex media and cells. Many detection strategies require aptamer binding to its target to result in a dramatic change in structure, typically from an unfolded to a folded state. Here, we report a strategy based on forced intercalation (FIT) that increases the scope of aptamer recognition by transducing subtle changes in aptamer structures into fluorescent readouts. By screening a library of green-fluorescent FIT-aptamers whose design is guided by computational modeling, we could identify hits that sense steroids like dehydroepiandrosterone sulfate (DHEAS) down to 1.3 μM with no loss in binding affinity compared to the unmodified aptamer. This enabled us to study DHEAS in clinical serum samples with several advantages over gold standard methods, including rapid readout (<30 min), simple instrumentation (plate-reader), and low sample volumes (10 μL).
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Affiliation(s)
- Sasha B Ebrahimi
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Devleena Samanta
- Department of Chemistry and International Institute for, Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Benjamin E Partridge
- Department of Chemistry and International Institute for, Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Caroline D Kusmierz
- Department of Chemistry and International Institute for, Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Ho Fung Cheng
- Department of Chemistry and International Institute for, Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Arabela A Grigorescu
- Keck Biophysics Facility, Northwestern University, 2220 Campus Drive, Evanston, IL, 60208, USA
| | - Jorge L Chávez
- Airman Systems Directorate and 711th Human Performance Wing, Air Force Research Laboratory, 2510 Fifth St, Area B Bldg 840, WPAFB, OH, 45433, USA
| | - Peter A Mirau
- Materials and Manufacturing Directorate, Air Force Research Laboratory, 2941 Hobson Way, WPAFB, OH, 45433, USA
| | - Chad A Mirkin
- Department of Chemistry and International Institute for, Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
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7
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Ebrahimi SB, Samanta D, Partridge BE, Kusmierz CD, Cheng HF, Grigorescu AA, Chávez JL, Mirau PA, Mirkin CA. Programming Fluorogenic DNA Probes for Rapid Detection of Steroids. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103440] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Sasha B. Ebrahimi
- Department of Chemical and Biological Engineering Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Devleena Samanta
- Department of Chemistry and International Institute for, Nanotechnology Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Benjamin E. Partridge
- Department of Chemistry and International Institute for, Nanotechnology Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Caroline D. Kusmierz
- Department of Chemistry and International Institute for, Nanotechnology Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Ho Fung Cheng
- Department of Chemistry and International Institute for, Nanotechnology Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Arabela A. Grigorescu
- Keck Biophysics Facility Northwestern University 2220 Campus Drive Evanston IL 60208 USA
| | - Jorge L. Chávez
- Airman Systems Directorate and 711th Human Performance Wing Air Force Research Laboratory 2510 Fifth St, Area B Bldg 840 WPAFB OH 45433 USA
| | - Peter A. Mirau
- Materials and Manufacturing Directorate Air Force Research Laboratory 2941 Hobson Way WPAFB OH 45433 USA
| | - Chad A. Mirkin
- Department of Chemistry and International Institute for, Nanotechnology Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
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8
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Yu. Kostina N, Söder D, Haraszti T, Xiao Q, Rahimi K, Partridge BE, Klein ML, Percec V, Rodriguez‐Emmenegger C. Enhanced Concanavalin A Binding to Preorganized Mannose Nanoarrays in Glycodendrimersomes Revealed Multivalent Interactions. Angew Chem Int Ed Engl 2021; 60:8352-8360. [PMID: 33493389 PMCID: PMC8048596 DOI: 10.1002/anie.202100400] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Indexed: 01/10/2023]
Abstract
The effect of the two-dimensional glycan display on glycan-lectin recognition remains poorly understood despite the importance of these interactions in a plethora of cellular processes, in (patho)physiology, as well as its potential for advanced therapeutics. Faced with this challenge we utilized glycodendrimersomes, a type of synthetic vesicles whose membrane mimics the surface of a cell and offers a means to probe the carbohydrate biological activity. These single-component vesicles were formed by the self-assembly of sequence-defined mannose-Janus dendrimers, which serve as surrogates for glycolipids. Using atomic force microscopy and molecular modeling we demonstrated that even mannose, a monosaccharide, was capable of organizing the sugar moieties into periodic nanoarrays without the need of the formation of liquid-ordered phases as assumed necessary for rafts. Kinetics studies of Concanavalin A binding revealed that those nanoarrays resulted in a new effective ligand yielding a ten-fold increase in the kinetic and thermodynamic constant of association.
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Affiliation(s)
- Nina Yu. Kostina
- DWI- Leibniz Institute for Interactive MaterialsInstitute of Technical and Macromolecular Chemistry RWTH Aachen UniversityForckenbeckstraße 5052074AachenGermany
| | - Dominik Söder
- DWI- Leibniz Institute for Interactive MaterialsInstitute of Technical and Macromolecular Chemistry RWTH Aachen UniversityForckenbeckstraße 5052074AachenGermany
| | - Tamás Haraszti
- DWI- Leibniz Institute for Interactive MaterialsInstitute of Technical and Macromolecular Chemistry RWTH Aachen UniversityForckenbeckstraße 5052074AachenGermany
| | - Qi Xiao
- Roy & Diana Vagelos LaboratoriesDepartment of ChemistryUniversity of PennsylvaniaPhiladelphiaPA19104-6323USA
- Institute of Computational Molecular ScienceTemple UniversityPhiladelphiaPA19122USA
| | - Khosrow Rahimi
- DWI- Leibniz Institute for Interactive MaterialsInstitute of Technical and Macromolecular Chemistry RWTH Aachen UniversityForckenbeckstraße 5052074AachenGermany
| | - Benjamin E. Partridge
- Roy & Diana Vagelos LaboratoriesDepartment of ChemistryUniversity of PennsylvaniaPhiladelphiaPA19104-6323USA
| | - Michael L. Klein
- Institute of Computational Molecular ScienceTemple UniversityPhiladelphiaPA19122USA
| | - Virgil Percec
- Roy & Diana Vagelos LaboratoriesDepartment of ChemistryUniversity of PennsylvaniaPhiladelphiaPA19104-6323USA
| | - Cesar Rodriguez‐Emmenegger
- DWI- Leibniz Institute for Interactive MaterialsInstitute of Technical and Macromolecular Chemistry RWTH Aachen UniversityForckenbeckstraße 5052074AachenGermany
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9
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Yu. Kostina N, Söder D, Haraszti T, Xiao Q, Rahimi K, Partridge BE, Klein ML, Percec V, Rodriguez‐Emmenegger C. Enhanced Concanavalin A Binding to Preorganized Mannose Nanoarrays in Glycodendrimersomes Revealed Multivalent Interactions. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Nina Yu. Kostina
- DWI- Leibniz Institute for Interactive Materials Institute of Technical and Macromolecular Chemistry RWTH Aachen University Forckenbeckstraße 50 52074 Aachen Germany
| | - Dominik Söder
- DWI- Leibniz Institute for Interactive Materials Institute of Technical and Macromolecular Chemistry RWTH Aachen University Forckenbeckstraße 50 52074 Aachen Germany
| | - Tamás Haraszti
- DWI- Leibniz Institute for Interactive Materials Institute of Technical and Macromolecular Chemistry RWTH Aachen University Forckenbeckstraße 50 52074 Aachen Germany
| | - Qi Xiao
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia PA 19104-6323 USA
- Institute of Computational Molecular Science Temple University Philadelphia PA 19122 USA
| | - Khosrow Rahimi
- DWI- Leibniz Institute for Interactive Materials Institute of Technical and Macromolecular Chemistry RWTH Aachen University Forckenbeckstraße 50 52074 Aachen Germany
| | - Benjamin E. Partridge
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia PA 19104-6323 USA
| | - Michael L. Klein
- Institute of Computational Molecular Science Temple University Philadelphia PA 19122 USA
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia PA 19104-6323 USA
| | - Cesar Rodriguez‐Emmenegger
- DWI- Leibniz Institute for Interactive Materials Institute of Technical and Macromolecular Chemistry RWTH Aachen University Forckenbeckstraße 50 52074 Aachen Germany
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10
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Holerca MN, Peterca M, Partridge BE, Xiao Q, Lligadas G, Monteiro MJ, Percec V. Monodisperse Macromolecules by Self-Interrupted Living Polymerization. J Am Chem Soc 2020; 142:15265-15270. [DOI: 10.1021/jacs.0c07912] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Marian N. Holerca
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Mihai Peterca
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Benjamin E. Partridge
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Qi Xiao
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Gerard Lligadas
- Laboratory of Sustainable Polymers, Department of Analytical and Organic Chemistry, University Rovira i Virgili, 43007 Tarragona, Spain
| | - Michael J. Monteiro
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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11
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Wang L, Partridge BE, Huang N, Olsen JT, Sahoo D, Zeng X, Ungar G, Graf R, Spiess HW, Percec V. Extraordinary Acceleration of Cogwheel Helical Self-Organization of Dendronized Perylene Bisimides by the Dendron Sequence Encoding Their Tertiary Structure. J Am Chem Soc 2020; 142:9525-9536. [DOI: 10.1021/jacs.0c03353] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Li Wang
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Benjamin E. Partridge
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Ning Huang
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - James T. Olsen
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Dipankar Sahoo
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Xiangbing Zeng
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, S1 3JD, United Kingdom
| | - Goran Ungar
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, S1 3JD, United Kingdom
- State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China
| | - Robert Graf
- Max-Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Hans W. Spiess
- Max-Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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12
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Park SS, Urbach ZJ, Brisbois CA, Parker KA, Partridge BE, Oh T, Dravid VP, Olvera de la Cruz M, Mirkin CA. DNA- and Field-Mediated Assembly of Magnetic Nanoparticles into High-Aspect Ratio Crystals. Adv Mater 2020; 32:e1906626. [PMID: 31814172 DOI: 10.1002/adma.201906626] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 11/20/2019] [Indexed: 05/22/2023]
Abstract
Under an applied magnetic field, superparamagnetic Fe3 O4 nanoparticles with complementary DNA strands assemble into crystalline, pseudo-1D elongated superlattice structures. The assembly process is driven through a combination of DNA hybridization and particle dipolar coupling, a property dependent on particle composition, size, and interparticle distance. The DNA controls interparticle distance and crystal symmetry, while the magnetic field leads to anisotropic crystal growth. Increasing the dipole interaction between particles by increasing particle size or external field strength leads to a preference for a particular crystal morphology (e.g., rhombic dodecahedra, stacked clusters, and smooth rods). Molecular dynamics simulations show that an understanding of both DNA hybridization energetic and magnetic interactions is required to predict the resulting crystal morphology. Taken together, the data show that applied magnetic fields with magnetic nanoparticles can be deliberately used to access nanostructures beyond what is possible with DNA hybridization alone.
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Affiliation(s)
- Sarah S Park
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Zachary J Urbach
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Chase A Brisbois
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL, 60208, USA
| | - Kelly A Parker
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL, 60208, USA
| | - Benjamin E Partridge
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Taegon Oh
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL, 60208, USA
| | - Vinayak P Dravid
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL, 60208, USA
| | - Monica Olvera de la Cruz
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL, 60208, USA
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
- Department of Physics and Astronomy, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Chad A Mirkin
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL, 60208, USA
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
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13
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Partridge BE, Wang L, Sahoo D, Olsen JT, Leowanawat P, Roche C, Ferreira H, Reilly KJ, Zeng X, Ungar G, Heiney PA, Graf R, Spiess HW, Percec V. Sequence-Defined Dendrons Dictate Supramolecular Cogwheel Assembly of Dendronized Perylene Bisimides. J Am Chem Soc 2019; 141:15761-15766. [PMID: 31529966 DOI: 10.1021/jacs.9b08714] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A dendronized perylene bisimide (PBI) that self-organizes into hexagonal arrays of supramolecular double helices with identical single-crystal-like order that disregards chirality was recently reported. A cogwheel model of self-assembly that explains this process was proposed. Accessing the highly ordered cogwheel phase required very slow heating and cooling or extended periods of annealing. Analogous PBIs with linear alkyl chains did not exhibit the cogwheel assembly. Here a library of sequence-defined dendrons containing all possible compositions of linear and racemic alkyl chains was employed to construct self-assembling PBIs. Thermal and structural analysis of their assemblies by differential scanning calorimetry (DSC) and fiber X-ray diffraction (XRD) revealed that the incorporation of n-alkyl chains accelerates the formation of the high order cogwheel phase, rendering the previously invisible phase accessible under standard heating and cooling rates. Small changes to the primary structure, as constitutional isomerism, result in significant changes to macroscopic properties such as melting of the periodic array. This study demonstrated how changes to the sequence-defined primary structure, including the relocation of methyl groups between two constitutional isomers, dictate tertiary and quaternary structure in hierarchical assemblies. This led to the discovery of a sequence that self-organizes the cogwheel assembly much faster than even the corresponding homochiral compounds and demonstrated that defined-sequence, which has long been recognized as a determinant for the complex structure of biomacromolecules including proteins and nucleic acids, plays the same role also in supramolecular synthetic systems.
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Affiliation(s)
- Benjamin E Partridge
- Roy & Diana Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , Philadelphia , Pennsylvania 19104-6323 , United States
| | - Li Wang
- Roy & Diana Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , Philadelphia , Pennsylvania 19104-6323 , United States.,College of Materials Science and Engineering , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Dipankar Sahoo
- Roy & Diana Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , Philadelphia , Pennsylvania 19104-6323 , United States
| | - James T Olsen
- Roy & Diana Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , Philadelphia , Pennsylvania 19104-6323 , United States
| | - Pawaret Leowanawat
- Roy & Diana Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , Philadelphia , Pennsylvania 19104-6323 , United States
| | - Cecilé Roche
- Roy & Diana Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , Philadelphia , Pennsylvania 19104-6323 , United States
| | - Henrique Ferreira
- Roy & Diana Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , Philadelphia , Pennsylvania 19104-6323 , United States
| | - Kevin J Reilly
- Roy & Diana Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , Philadelphia , Pennsylvania 19104-6323 , United States
| | - Xiangbing Zeng
- Department of Materials Science and Engineering , University of Sheffield , Sheffield S1 3JD , United Kingdom
| | - Goran Ungar
- Department of Materials Science and Engineering , University of Sheffield , Sheffield S1 3JD , United Kingdom.,State Key Laboratory for Mechanical Behavior of Materials , Xi'an Jiaotong University , Xi'an 710049 , China
| | - Paul A Heiney
- Department of Physics and Astronomy , University of Pennsylvania , Philadelphia , Pennsylvania 19104-6396 , United States
| | - Robert Graf
- Max-Planck Institute for Polymer Research , 55128 Mainz , Germany
| | - Hans W Spiess
- Max-Planck Institute for Polymer Research , 55128 Mainz , Germany
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , Philadelphia , Pennsylvania 19104-6323 , United States
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14
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Wilson DA, Andreopoulou KA, Peterca M, Leowanawat P, Sahoo D, Partridge BE, Xiao Q, Huang N, Heiney PA, Percec V. Supramolecular Spheres Self-Assembled from Conical Dendrons Are Chiral. J Am Chem Soc 2019; 141:6162-6166. [DOI: 10.1021/jacs.9b02206] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Daniela A. Wilson
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Katerina A. Andreopoulou
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Mihai Peterca
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, United States
| | - Pawaret Leowanawat
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Dipankar Sahoo
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Benjamin E. Partridge
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Qi Xiao
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Ning Huang
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Paul A. Heiney
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, United States
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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15
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Holerca MN, Sahoo D, Partridge BE, Peterca M, Zeng X, Ungar G, Percec V. Dendronized Poly(2-oxazoline) Displays within only Five Monomer Repeat Units Liquid Quasicrystal, A15 and σ Frank–Kasper Phases. J Am Chem Soc 2018; 140:16941-16947. [DOI: 10.1021/jacs.8b11103] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Marian N. Holerca
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Dipankar Sahoo
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Benjamin E. Partridge
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Mihai Peterca
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, United States
| | - Xiangbing Zeng
- Department of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, United Kingdom
| | - Goran Ungar
- Department of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, United Kingdom
- State Key
Laboratory
for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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16
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Sahoo D, Imam MR, Peterca M, Partridge BE, Wilson DA, Zeng X, Ungar G, Heiney PA, Percec V. Hierarchical Self-Organization of Chiral Columns from Chiral Supramolecular Spheres. J Am Chem Soc 2018; 140:13478-13487. [DOI: 10.1021/jacs.8b09174] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Dipankar Sahoo
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Mohammad R. Imam
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Mihai Peterca
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, United States
| | - Benjamin E. Partridge
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Daniela A. Wilson
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Xiangbing Zeng
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, S1 3JD, United Kingdom
| | - Goran Ungar
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, S1 3JD, United Kingdom
- Department of Physics, Zhejiang Sci-Tech University, 310018 Hangzhou, China
| | - Paul A. Heiney
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, United States
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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17
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Sahoo D, Peterca M, Aqad E, Partridge BE, Klein ML, Percec V. Losing supramolecular orientational memory via self-organization of a misfolded secondary structure. Polym Chem 2018. [DOI: 10.1039/c8py00187a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Comparing the self-organization of two dendronized perylene bisimides reveals how structurally defective primary structure eliminates memory function via hierarchical self-organization.
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Affiliation(s)
- Dipankar Sahoo
- Roy & Diana Vagelos Laboratories
- Department of Chemistry
- University of Pennsylvania
- Philadelphia
- USA
| | - Mihai Peterca
- Roy & Diana Vagelos Laboratories
- Department of Chemistry
- University of Pennsylvania
- Philadelphia
- USA
| | - Emad Aqad
- Roy & Diana Vagelos Laboratories
- Department of Chemistry
- University of Pennsylvania
- Philadelphia
- USA
| | - Benjamin E. Partridge
- Roy & Diana Vagelos Laboratories
- Department of Chemistry
- University of Pennsylvania
- Philadelphia
- USA
| | - Michael L. Klein
- Institute of Computational Molecular Science
- Temple University
- Philadelphia
- USA
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories
- Department of Chemistry
- University of Pennsylvania
- Philadelphia
- USA
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18
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Andreopoulou KA, Peterca M, Wilson DA, Partridge BE, Heiney PA, Percec V. Demonstrating the 81-Helicity and Nanomechanical Function of Self-Organizable Dendronized Polymethacrylates and Polyacrylates. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01216] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Katerina A. Andreopoulou
- Roy & Diana Vagelos Laboratories, Department of Chemistry and ‡Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Mihai Peterca
- Roy & Diana Vagelos Laboratories, Department of Chemistry and ‡Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Daniela A. Wilson
- Roy & Diana Vagelos Laboratories, Department of Chemistry and ‡Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Benjamin E. Partridge
- Roy & Diana Vagelos Laboratories, Department of Chemistry and ‡Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Paul A. Heiney
- Roy & Diana Vagelos Laboratories, Department of Chemistry and ‡Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry and ‡Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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19
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Sahoo D, Peterca M, Aqad E, Partridge BE, Heiney PA, Graf R, Spiess HW, Zeng X, Percec V. Tetrahedral Arrangements of Perylene Bisimide Columns via Supramolecular Orientational Memory. ACS Nano 2017; 11:983-991. [PMID: 28038310 DOI: 10.1021/acsnano.6b07599] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Chiral, shape, and liquid crystalline memory effects are well-known to produce commercial macroscopic materials with important applications as springs, sensors, displays, and memory devices. A supramolecular orientational memory effect that provides complex nanoscale arrangements was only recently reported. This supramolecular orientational memory was demonstrated to preserve the molecular orientation and packing within supramolecular units of a self-assembling cyclotriveratrylene crown at the nanoscale upon transition between its columnar hexagonal and Pm3̅n cubic periodic arrays. Here we report the discovery of supramolecular orientational memory in a dendronized perylene bisimide (G2-PBI) that self-assembles into tetrameric crowns and subsequently self-organizes into supramolecular columns and spheres. This supramolecular orientation memory upon transition between columnar hexagonal and body-centered cubic (BCC) mesophases preserves the 3-fold cubic [111] orientations rather than the 4-fold [100] axes, generating an unusual tetrahedral arrangement of supramolecular columns. These results indicate that the supramolecular orientational memory concept may be general for periodic arrays of self-assembling dendrons and dendrimers as well as for other periodic and quasiperiodic nanoscale organizations comprising supramolecular spheres, generated from other organized complex soft matter including block copolymers and surfactants.
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Affiliation(s)
- Dipankar Sahoo
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
| | - Mihai Peterca
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
- Department of Physics and Astronomy, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6396, United States
| | - Emad Aqad
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
| | - Benjamin E Partridge
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
| | - Paul A Heiney
- Department of Physics and Astronomy, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6396, United States
| | - Robert Graf
- Max-Planck Institute for Polymer Research , Mainz 55128, Germany
| | - Hans W Spiess
- Max-Planck Institute for Polymer Research , Mainz 55128, Germany
| | - Xiangbing Zeng
- Department of Materials Science and Engineering, University of Sheffield , Sheffield S1 3JD, United Kingdom
| | - Virgil Percec
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
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20
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Holerca MN, Sahoo D, Peterca M, Partridge BE, Heiney PA, Percec V. A Tetragonal Phase Self-Organized from Unimolecular Spheres Assembled from a Substituted Poly(2-oxazoline). Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b02298] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marian N. Holerca
- Roy & Diana Vagelos Laboratories, Department of Chemistry, and ‡Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Dipankar Sahoo
- Roy & Diana Vagelos Laboratories, Department of Chemistry, and ‡Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Mihai Peterca
- Roy & Diana Vagelos Laboratories, Department of Chemistry, and ‡Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Benjamin E. Partridge
- Roy & Diana Vagelos Laboratories, Department of Chemistry, and ‡Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Paul A. Heiney
- Roy & Diana Vagelos Laboratories, Department of Chemistry, and ‡Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, and ‡Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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21
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Ho MS, Partridge BE, Sun HJ, Sahoo D, Leowanawat P, Peterca M, Graf R, Spiess HW, Zeng X, Ungar G, Heiney PA, Hsu CS, Percec V. Screening Libraries of Semifluorinated Arylene Bisimides to Discover and Predict Thermodynamically Controlled Helical Crystallization. ACS Comb Sci 2016; 18:723-739. [PMID: 27797481 DOI: 10.1021/acscombsci.6b00143] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Synthesis, structural, and retrostructural analysis of a library containing 16 self-assembling perylene (PBI), 1,6,7,12-tetrachloroperylene (Cl4PBI), naphthalene (NBI), and pyromellitic (PMBI) bisimides functionalized with environmentally friendly AB3 chiral racemic semifluorinated minidendrons at their imide groups via m = 0, 1, 2, and 3 methylene units is reported. These semifluorinated compounds melt at lower temperatures than homologous hydrogenated compounds, permitting screening of all their thermotropic phases via structural analysis to discover thermodynamically controlled helical crystallization from propeller-like, cogwheel, and tilted molecules as well as lamellar-like structures. Thermodynamically controlled helical crystallization was discovered for propeller-like PBI, Cl4PBI and NBI with m = 0. Unexpectedly, assemblies of twisted Cl4PBIs exhibit higher order than those of planar PBIs. PBI with m = 1, 2, and 3 form a thermodynamically controlled columnar hexagonal 2D lattice of tilted helical columns with intracolumnar order. PBI and Cl4PBI with m = 1 crystallize via a recently discovered helical cogwheel mechanism, while NBI and PMBI with m = 1 form tilted helical columns. PBI, NBI and PMBI with m = 2 generate lamellar-like structures. 3D and 2D assemblies of PBI with m = 1, 2, and 3, NBI with m = 1 and PMBI with m = 2 exhibit 3.4 Å π-π stacking. The library approach applied here and in previous work enabled the discovery of six assemblies which self-organize via thermodynamic control into 3D and 2D periodic arrays, and provides molecular principles to predict the supramolecular structure of electronically active components.
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Affiliation(s)
- Ming-Shou Ho
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Benjamin E. Partridge
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Hao-Jan Sun
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Dipankar Sahoo
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Pawaret Leowanawat
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Mihai Peterca
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
- Department
of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, United States
| | - Robert Graf
- Max-Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Hans W. Spiess
- Max-Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Xiangbing Zeng
- Department
of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, United Kingdom
| | - Goran Ungar
- Department
of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, United Kingdom
- Department
of Physics, Zhejiang Sci-Tech University, Hangzhou 3110018, China
| | - Paul A. Heiney
- Department
of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, United States
| | - Chain-Shu Hsu
- Department
of Applied Chemistry, National Chiao Tung University, 1001 Ta Hsueh
Road, Hsin-Chu 30049, Taiwan
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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22
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Peterca M, Imam MR, Hudson SD, Partridge BE, Sahoo D, Heiney PA, Klein ML, Percec V. Complex Arrangement of Orthogonal Nanoscale Columns via a Supramolecular Orientational Memory Effect. ACS Nano 2016; 10:10480-10488. [PMID: 27934071 PMCID: PMC5292035 DOI: 10.1021/acsnano.6b06419] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Memory effects, including shape, chirality, and liquid-crystallinity, have enabled macroscopic materials with novel functions. However, the generation of complex supramolecular nanosystems via memory effects has not yet been investigated. Here, we report a cyclotriveratrylene-crown (CTV) compound that self-assembles into supramolecular columns and spheres forming, respectively, hexagonal and cubic mesophases. Upon transition from one phase to the other, an epitaxial relationship holds, via an unprecedented supramolecular orientational memory effect. Specifically, the molecular orientation and columnar character of supramolecular packing is preserved in the cubic phase, providing an otherwise inaccessible structure comprising orthogonally oriented domains of supramolecular columns. The continuous columnar character of tetrahedrally distorted supramolecular spheres self-organized from the CTV derivative in the faces of the Pm3̅n lattice is the basis of this supramolecular orientational memory, which holds throughout cycling in temperature between the two phases. This concept is expected to be general for other combinations of periodic and quasiperiodic arrays generated from supramolecular spheres upon transition to supramolecular columns.
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Affiliation(s)
- Mihai Peterca
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, United States
| | - Mohammad R. Imam
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Steven D. Hudson
- National Institute of Standards and Technology, Gaithersburg, MD 20899-8544, United States
| | - Benjamin E. Partridge
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Dipankar Sahoo
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, United States
| | - Paul A. Heiney
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, United States
| | - Michael L. Klein
- Institute of Computational Molecular Science, Temple University, Philadelphia, PA 19122
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
- Corresponding Author.
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23
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Sahoo D, Peterca M, Aqad E, Partridge BE, Heiney PA, Graf R, Spiess HW, Zeng X, Percec V. Hierarchical Self-Organization of Perylene Bisimides into Supramolecular Spheres and Periodic Arrays Thereof. J Am Chem Soc 2016; 138:14798-14807. [DOI: 10.1021/jacs.6b09986] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Dipankar Sahoo
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
- Department
of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, United States
| | - Mihai Peterca
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
- Department
of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, United States
| | - Emad Aqad
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Benjamin E. Partridge
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Paul A. Heiney
- Department
of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, United States
| | - Robert Graf
- Max-Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Hans W. Spiess
- Max-Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Xiangbing Zeng
- Department
of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, United Kingdom
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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Guerra S, Iehl J, Holler M, Peterca M, Wilson DA, Partridge BE, Zhang S, Deschenaux R, Nierengarten JF, Percec V. Self-organisation of dodeca-dendronized fullerene into supramolecular discs and helical columns containing a nanowire-like core. Chem Sci 2015; 6:3393-3401. [PMID: 29142695 PMCID: PMC5657094 DOI: 10.1039/c5sc00449g] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 04/04/2015] [Indexed: 01/21/2023] Open
Abstract
Twelve chiral and achiral self-assembling dendrons have been grafted onto a [60]fullerene hexa-adduct core by copper-catalyzed alkyne azide "click" cycloaddition. The structure adopted by these compounds was determined by the self-assembling peripheral dendrons. These twelve dendrons mediate the self-organisation of the dendronized [60]fullerene into a disc-shaped structure containing the [60]fullerene in the centre. The fullerene-containing discs self-organise into helical supramolecular columns with a fullerene nanowire-like core, forming a 2D columnar hexagonal periodic array. These unprecedented supramolecular structures and their assemblies are expected to provide new developments in chiral complex molecular systems and their application to organic electronics and solar cells.
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Affiliation(s)
- Sebastiano Guerra
- Institut de Chimie , Université de Neuchâtel , Avenue de Bellevaux 51 , 2000 Neuchâtel , Switzerland .
| | - Julien Iehl
- Laboratoire de Chimie des Matériaux Moléculaires , Université de Strasbourg et CNRS , Ecole Européenne de Chimie , Polymères et Matériaux , 25 rue Becquerel , 67087 Strasbourg Cedex 2 , France .
| | - Michel Holler
- Laboratoire de Chimie des Matériaux Moléculaires , Université de Strasbourg et CNRS , Ecole Européenne de Chimie , Polymères et Matériaux , 25 rue Becquerel , 67087 Strasbourg Cedex 2 , France .
| | - Mihai Peterca
- Roy & Diana Vagelos Laboratories , Department of Chemistry , University of Pennsylvania , Philadelphia , Pennsylvania 19104-6323 , USA .
| | - Daniela A Wilson
- Roy & Diana Vagelos Laboratories , Department of Chemistry , University of Pennsylvania , Philadelphia , Pennsylvania 19104-6323 , USA .
| | - Benjamin E Partridge
- Roy & Diana Vagelos Laboratories , Department of Chemistry , University of Pennsylvania , Philadelphia , Pennsylvania 19104-6323 , USA .
| | - Shaodong Zhang
- Roy & Diana Vagelos Laboratories , Department of Chemistry , University of Pennsylvania , Philadelphia , Pennsylvania 19104-6323 , USA .
| | - Robert Deschenaux
- Institut de Chimie , Université de Neuchâtel , Avenue de Bellevaux 51 , 2000 Neuchâtel , Switzerland .
| | - Jean-François Nierengarten
- Laboratoire de Chimie des Matériaux Moléculaires , Université de Strasbourg et CNRS , Ecole Européenne de Chimie , Polymères et Matériaux , 25 rue Becquerel , 67087 Strasbourg Cedex 2 , France .
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories , Department of Chemistry , University of Pennsylvania , Philadelphia , Pennsylvania 19104-6323 , USA .
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Partridge BE, Leowanawat P, Aqad E, Imam MR, Sun HJ, Peterca M, Heiney PA, Graf R, Spiess HW, Zeng X, Ungar G, Percec V. Increasing 3D Supramolecular Order by Decreasing Molecular Order. A Comparative Study of Helical Assemblies of Dendronized Nonchlorinated and Tetrachlorinated Perylene Bisimides. J Am Chem Soc 2015; 137:5210-24. [DOI: 10.1021/jacs.5b02147] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Benjamin E. Partridge
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Pawaret Leowanawat
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Emad Aqad
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Mohammad R. Imam
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Hao-Jan Sun
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
- Department
of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, United States
| | - Mihai Peterca
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Paul A. Heiney
- Department
of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, United States
| | - Robert Graf
- Max-Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Hans W. Spiess
- Max-Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Xiangbing Zeng
- Department
of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, United Kingdom
| | - Goran Ungar
- Department
of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, United Kingdom
- Department
of Physics, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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Wu YC, Leowanawat P, Sun HJ, Partridge BE, Peterca M, Graf R, Spiess HW, Zeng X, Ungar G, Hsu CS, Heiney PA, Percec V. Complex Columnar Hexagonal Polymorphism in Supramolecular Assemblies of a Semifluorinated Electron-Accepting Naphthalene Bisimide. J Am Chem Soc 2015; 137:807-19. [DOI: 10.1021/ja510643b] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Yu-Chun Wu
- Roy
and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Pawaret Leowanawat
- Roy
and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Hao-Jan Sun
- Roy
and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
- Department
of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, United States
| | - Benjamin E. Partridge
- Roy
and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Mihai Peterca
- Roy
and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Robert Graf
- Max-Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Hans W. Spiess
- Max-Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Xiangbing Zeng
- Department
of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, United Kingdom
| | - Goran Ungar
- Department
of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, United Kingdom
- Department
of Physics, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Chain-Shu Hsu
- Department
of Applied Chemistry, National Chiao Tung University, Hsin-Chu 30049, Taiwan
| | - Paul A. Heiney
- Department
of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, United States
| | - Virgil Percec
- Roy
and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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Mullaney BR, Partridge BE, Beer PD. A Halogen-Bonding Bis-triazolium Rotaxane for Halide-Selective Anion Recognition. Chemistry 2014; 21:1660-5. [DOI: 10.1002/chem.201405578] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Indexed: 01/30/2023]
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Roche C, Sun HJ, Prendergast ME, Leowanawat P, Partridge BE, Heiney PA, Araoka F, Graf R, Spiess HW, Zeng X, Ungar G, Percec V. Homochiral columns constructed by chiral self-sorting during supramolecular helical organization of hat-shaped molecules. J Am Chem Soc 2014; 136:7169-85. [PMID: 24758745 DOI: 10.1021/ja5035107] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A library of dendronized cyclotriveratrylene (CTV) crowns substituted with chiral, racemic, or achiral peripheral alkyl chains, including enantiopure R and S branched alkyls, "racemic by mixture", "racemic by synthesis", n-octyl, and n-dodecyl groups was synthesized. In solvophobic solvents and in bulk they self-assemble in helical columns. Their solution and bulk shape-persistent supramolecular structures were determined by a complementary combination of circular dichroism (CD) and UV in solution and thin film, microspot CD in thin film, differential scanning calorimetry combined with fiber X-ray diffraction, computer simulation, and molecular models. In solution, self-assembly via a cooperative mechanism generates single-handed columns from enantiopure CTVs and mixtures of right- and left-handed columns from racemic by mixture, racemic by synthesis, other combinations of R and S, and even from achiral compounds. In bulk state all supramolecular columns form a 3D hexagonal crystalline phase, Φ(h)(k) (P6₃ symmetry), that can be obtained only from single-handed columns and a columnar hexagonal 2D liquid crystal, Φ(h). The highest order Φ(h)(k) consists of enantiopure single-handed columns that are slightly distorted 12-fold triple helices. The "hat-shaped" dendronized CTV assembles in bent-branch pine-tree columns that allow interdigitation of alkyl groups in adjacent columns regardless of their direction. Enantiomerically rich, racemic, and achiral compositions undergo deracemization in the crystal state by transfer of the transient disc-like conformer of dendronized CTV from column to column during crown inversion. Solid state NMR experiments identified motional processes that allow such transfer. This unprecedented supramolecular chiral self-sorting will impact the creation of functions in complex systems.
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Affiliation(s)
- Cécile Roche
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
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Noonan GM, Hayter BR, Campbell AD, Gorman TW, Partridge BE, Lamont GM. Expanding the scope of silane-mediated hydrodehalogenation reactions. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.06.063] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
Peptide analogs which correspond to the conserved region of the natural ATPase inhibitor protein from beef heart, Candida utilis, and Saccharomyces cerevisiae mitochondria were synthesized by solid-phase methodologies and tested for ATPase inhibitory activity. These peptides were found to be potent inhibitors of F1-ATPase-catalyzed ATP hydrolysis in acidic reaction media, having I50 values of 1.1 +/- 0.4 microM, 10 +/- 5 microM, and 48 +/- 19 microM, respectively. These results closely match those obtained for the naturally occurring inhibitor proteins. Additional peptides that correspond to the beef heart beta-subunit near the binding site of the beef heart inhibitor protein and that possess a substantial homology with the conserved region of the inhibitor protein were synthesized. Several of these peptides were found to be inhibitors of the ATPase activity. The best inhibitor, with an I50 value of 20 +/- 3 microM, was the peptide resembling the beef heart beta-subunit comprising amino acids 394-413. This peptide most closely resembles the peptides derived from the conserved region of the inhibitor protein. The insertion of five glycine residues between the charge clusters in the beta-394-413 peptide resulted in a peptide which was able to stimulate the hydrolysis of ATP.
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Affiliation(s)
- J S Stout
- Department of Biochemistry and Molecular Biology, University of Florida, Gainesville 32610-0245
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Johal S, Partridge BE, Chollet R. Structural characterization and the determination of negative cooperativity in the tight binding of 2-carboxyarabinitol bisphosphate to higher plant ribulose bisphosphate carboxylase. J Biol Chem 1985; 260:9894-904. [PMID: 4019498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
When CO2/Mg2+-activated spinach leaf ribulose-1,5-bisphosphate carboxylase (EC 4.1.1.39) is incubated with the transition-state analog 2-carboxyarabinitol 1,5-bisphosphate, an essentially irreversible complex is formed. The extreme stability of this quaternary complex has allowed the use of native analytical isoelectric focusing, anion-exchange chromatography, and nondenaturing polyacrylamide gel electrophoresis to probe the mechanism of the binding process and the effects of ligand tight-binding on the structure of the protein molecule. Changes in the chromatographic and electrophoretic properties of the enzyme upon tight binding of the inhibitor reveal that the ligand induces a conformational reorganization which extends to the surface of the protein molecule and, at saturation, results in a 16% decrease in apparent molecular weight. Analysis of ligand binding by isoelectric focusing shows that (i) incubating the protein with a stoichiometric molar concentration of ligand (site basis) results in an apparently charge homogeneous enzyme population with an isoelectric point of 4.9, and (ii) substoichiometric levels of ligand produce differential effects on each of the charge microheterogeneous native enzyme forms. These stoichiometry-dependent changes in electrofocusing band patterns were employed as a probe of cooperativity in the ligand tight-binding process. The tight-binding reaction was shown to be negatively cooperative.
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