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Cai C, Tang H, Li F, Xu Z, Lin J, Li D, Tang Z, Yang C, Gao L. Archimedean Spirals with Controllable Chirality: Disk Substrate-Mediated Solution Assembly of Rod-Coil Block Copolymers. JACS AU 2024; 4:2363-2371. [PMID: 38938804 PMCID: PMC11200227 DOI: 10.1021/jacsau.4c00324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/24/2024] [Accepted: 06/03/2024] [Indexed: 06/29/2024]
Abstract
Spirals are common in nature; however, they are rarely observed in polymer self-assembly systems, and the formation mechanism is not well understood. Herein, we report the formation of two-dimensional (2D) spiral patterns via microdisk substrate-mediated solution self-assembly of polypeptide-based rod-coil block copolymers. The spiral pattern consists of multiple strands assembled from the block copolymers, and two central points are observed. The spirals fit well with the Archimedean spiral model, and their chirality is dependent on the chirality of the polypeptide blocks. As revealed by a combination of experiments and theoretical simulations, these spirals are induced by an interplay of the parallel ordering tendency of the strands and circular confinement of the microdisks. This work presents the first example regarding substrate-mediated self-assembly of block copolymers into spirals. The gained information could not only enhance our understanding of natural spirals but also assist in both the controllable preparations and applications of spiral nanostructures.
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Affiliation(s)
- Chunhua Cai
- Shanghai
Key Laboratory of Advanced Polymeric Materials, Key Laboratory for
Ultrafine Materials of Ministry of Education, Frontiers Science Center
for Materiobiology and Dynamic Chemistry, School of Materials Science
and Engineering, East China University of
Science and Technology, Shanghai 200237, China
| | - Hongfeng Tang
- Shanghai
Key Laboratory of Advanced Polymeric Materials, Key Laboratory for
Ultrafine Materials of Ministry of Education, Frontiers Science Center
for Materiobiology and Dynamic Chemistry, School of Materials Science
and Engineering, East China University of
Science and Technology, Shanghai 200237, China
| | - Feiyan Li
- Shanghai
Key Laboratory of Advanced Polymeric Materials, Key Laboratory for
Ultrafine Materials of Ministry of Education, Frontiers Science Center
for Materiobiology and Dynamic Chemistry, School of Materials Science
and Engineering, East China University of
Science and Technology, Shanghai 200237, China
| | - Zhanwen Xu
- State
Key Laboratory of Molecular Engineering of Polymers, Department of
Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Jiaping Lin
- Shanghai
Key Laboratory of Advanced Polymeric Materials, Key Laboratory for
Ultrafine Materials of Ministry of Education, Frontiers Science Center
for Materiobiology and Dynamic Chemistry, School of Materials Science
and Engineering, East China University of
Science and Technology, Shanghai 200237, China
| | - Da Li
- Shanghai
Key Laboratory of Advanced Polymeric Materials, Key Laboratory for
Ultrafine Materials of Ministry of Education, Frontiers Science Center
for Materiobiology and Dynamic Chemistry, School of Materials Science
and Engineering, East China University of
Science and Technology, Shanghai 200237, China
| | - Zhengmin Tang
- Department
of Laboratory Medicine, the First Affiliated Hospital, College of
Medicine, Zhejiang University, Hangzhou 311121, China
| | - Chunming Yang
- Shanghai
Synchrotron Radiation Facility, Shanghai
Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Liang Gao
- Shanghai
Key Laboratory of Advanced Polymeric Materials, Key Laboratory for
Ultrafine Materials of Ministry of Education, Frontiers Science Center
for Materiobiology and Dynamic Chemistry, School of Materials Science
and Engineering, East China University of
Science and Technology, Shanghai 200237, China
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Pinto MR, Costa GF, Machado EG, Nagao R. Self‐Organization in Electrochemical Synthesis as a Methodology towards New Materials. ChemElectroChem 2020. [DOI: 10.1002/celc.202000065] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Maria R. Pinto
- Institute of ChemistryUniversity of Campinas CEP 13083-970 Campinas, SP Brazil
| | - Gabriel F. Costa
- Institute of ChemistryUniversity of Campinas CEP 13083-970 Campinas, SP Brazil
| | - Eduardo G. Machado
- Institute of ChemistryUniversity of Campinas CEP 13083-970 Campinas, SP Brazil
- Center for Innovation on New EnergiesUniversity of Campinas CEP 13083-841 Campinas, SP Brazil
| | - Raphael Nagao
- Institute of ChemistryUniversity of Campinas CEP 13083-970 Campinas, SP Brazil
- Center for Innovation on New EnergiesUniversity of Campinas CEP 13083-841 Campinas, SP Brazil
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Menéndez E, Modarresi H, Petermann C, Nogués J, Domingo N, Liu H, Kirby BJ, Mohd AS, Salhi Z, Babcock E, Mattauch S, Van Haesendonck C, Vantomme A, Temst K. Lateral Magnetically Modulated Multilayers by Combining Ion Implantation and Lithography. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1603465. [PMID: 28067997 DOI: 10.1002/smll.201603465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 11/11/2016] [Indexed: 06/06/2023]
Abstract
The combination of lithography and ion implantation is demonstrated to be a suitable method to prepare lateral multilayers. A laterally, compositionally, and magnetically modulated microscale pattern consisting of alternating Co (1.6 µm wide) and Co-CoO (2.4 µm wide) lines has been obtained by oxygen ion implantation into a lithographically masked Au-sandwiched Co thin film. Magnetoresistance along the lines (i.e., current and applied magnetic field are parallel to the lines) reveals an effective positive giant magnetoresistance (GMR) behavior at room temperature. Conversely, anisotropic magnetoresistance and GMR contributions are distinguished at low temperature (i.e., 10 K) since the O-implanted areas become exchange coupled. This planar GMR is principally ascribed to the spatial modulation of coercivity in a spring-magnet-type configuration, which results in 180° Néel extrinsic domain walls at the Co/Co-CoO interfaces. The versatility, in terms of pattern size, morphology, and composition adjustment, of this method offers a unique route to fabricate planar systems for, among others, spintronic research and applications.
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Affiliation(s)
- Enric Menéndez
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200 D, 3001, Leuven, Belgium
| | - Hiwa Modarresi
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200 D, 3001, Leuven, Belgium
| | - Claire Petermann
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200 D, 3001, Leuven, Belgium
| | - Josep Nogués
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193, Barcelona, Spain
- ICREA, Pg. Lluís Companys 23, 08010, Barcelona, Spain
| | - Neus Domingo
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Haoliang Liu
- KU Leuven, Laboratorium voor Vaste-Stoffysica en Magnetisme, Celestijnenlaan 200 D, 3001, Leuven, Belgium
| | - Brian J Kirby
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - Amir Syed Mohd
- Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ), Forschungszentrum Jülich GmbH, 85747, Garching, Germany
| | - Zahir Salhi
- Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ), Forschungszentrum Jülich GmbH, 85747, Garching, Germany
| | - Earl Babcock
- Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ), Forschungszentrum Jülich GmbH, 85747, Garching, Germany
| | - Stefan Mattauch
- Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ), Forschungszentrum Jülich GmbH, 85747, Garching, Germany
| | - Chris Van Haesendonck
- KU Leuven, Laboratorium voor Vaste-Stoffysica en Magnetisme, Celestijnenlaan 200 D, 3001, Leuven, Belgium
| | - André Vantomme
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200 D, 3001, Leuven, Belgium
| | - Kristiaan Temst
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200 D, 3001, Leuven, Belgium
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