1
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Waelès P, Coutrot F. A Foldaxane-based Supramolecular Muscle-Like Switch. ChemistryOpen 2024:e202400076. [PMID: 38963159 DOI: 10.1002/open.202400076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Indexed: 07/05/2024] Open
Abstract
[cn]daisy chain molecular muscle architectures are self-assemblies of hermaphrodite monomers, which usually contain a macrocycle unit linked to a molecular thread that contains sites of interactions - i. e. molecular stations - for the macrocycle. In these multiply threaded structures, altering with control the affinity between macrocycles and stations allows for contraction and extension of the molecule, which is reminiscent of the operation of a muscle. Besides, the field that consists of combining helix and template-containing rods to design foldaxane supramolecular assemblies is still underexplored. By using foldamer units as surrogates for macrocycles, Gan et al. reported the first supramolecular muscle-like foldamer-containing switch that can adopt, after chemical stimulus, either a contracted co-conformational state or a degenerate-like state for which a slow exchange occurred between the contracted and the stretched state.
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Affiliation(s)
- Philip Waelès
- Supramolecular Machines and Architectures Team, IBMM, Université de Montpellier, CNRS, ENSCM, Montpellier, France
| | - Frédéric Coutrot
- Supramolecular Machines and Architectures Team, IBMM, Université de Montpellier, CNRS, ENSCM, Montpellier, France
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2
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Chang KH, Yang YH, Su KH, Chen Y, Lin TC, Li JL, Liu ZY, Shi JH, Wang TF, Chang YT, Demchenko AP, Yang HC, Chou PT. Light Induced Proton Coupled Charge Transfer Triggers Counterion Directional Translocation. Angew Chem Int Ed Engl 2024; 63:e202403317. [PMID: 38578721 DOI: 10.1002/anie.202403317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 04/05/2024] [Accepted: 04/05/2024] [Indexed: 04/07/2024]
Abstract
We demonstrate directed translocation of ClO4 - anions from cationic to neutral binding site along the synthetized BPym-OH dye molecule that exhibits coupled excited-state intramolecular proton-transfer (ESIPT) and charge-transfer (CT) reaction (PCCT). The results of steady-state and time-resolved spectroscopy together with computer simulation and modeling show that in low polar toluene the excited-state redistribution of electronic charge enhanced by ESIPT generates the driving force, which is much stronger than by CT reaction itself and provides more informative gigantic shifts of fluorescence spectra signaling on ultrafast ion motion. The associated with ion translocation red-shifted fluorescence band (at 750 nm, extending to near-IR region) appears at the time ~83 ps as a result of electrochromic modulation of PCCT reaction. It occurs at substantial delay to PCCT that displayed fluorescence band at 640 nm and risetime of <200 fs. Thus, it becomes possible to visualize the manifestations of light-triggered ion translocation and of its driving force by fluorescence techniques and to separate them in time and energy domains.
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Affiliation(s)
- Kai-Hsin Chang
- Department of Chemistry, National Taiwan University, Taipei, 10617, Taiwan, R.O.C
| | - Yu-Hsuan Yang
- Department of Chemistry, National Taiwan University, Taipei, 10617, Taiwan, R.O.C
| | - Kuan-Hsuan Su
- Department of Chemistry, Fu Jen Catholic University, New Taipei City, 24205, Taiwan
| | - Yi Chen
- Department of Chemistry, National Taiwan University, Taipei, 10617, Taiwan, R.O.C
| | - Ta-Chun Lin
- Department of Chemistry, National Taiwan University, Taipei, 10617, Taiwan, R.O.C
| | - Jian-Liang Li
- Department of Chemistry, National Taiwan University, Taipei, 10617, Taiwan, R.O.C
| | - Zong-Ying Liu
- Department of Chemistry, National Taiwan University, Taipei, 10617, Taiwan, R.O.C
| | - Jing-Han Shi
- Department of Chemistry, National Taiwan University, Taipei, 10617, Taiwan, R.O.C
| | - Tzu-Fang Wang
- Department of Chemistry, National Taiwan University, Taipei, 10617, Taiwan, R.O.C
| | - Yi-Tyng Chang
- Department of Medical Applied Chemistry Chung Shan Medical University, Taichung, 40201, Taiwan
| | - Alexander P Demchenko
- A. V. Palladin Institute of Biochemistry, 01030, Kyiv, Ukraine
- Yuriy Fedkovych National University, Chernivtsi, 58012, Ukrainet
| | - Hsiao-Ching Yang
- Department of Chemistry, Fu Jen Catholic University, New Taipei City, 24205, Taiwan
| | - Pi-Tai Chou
- Department of Chemistry, National Taiwan University, Taipei, 10617, Taiwan, R.O.C
- Center for Emerging Materials and Advanced Devices, National Taiwan University, Taipei, 10617, Taiwan
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3
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Moulin E, Carmona-Vargas CC, Giuseppone N. Daisy chain architectures: from discrete molecular entities to polymer materials. Chem Soc Rev 2023; 52:7333-7358. [PMID: 37850236 DOI: 10.1039/d3cs00619k] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
Daisy chain architectures, made by the self-complementary threading of an axle covalently linked to a macrocycle, represent a particularly intriguing family of supramolecular and mechanically interlocked (macro)molecules. In this review, we discuss their recent history, their modular chemical structures, and the various synthetic strategies to access them. We also detail how their internal sliding motions can be controlled and how their integration within polymers can amplify that motions up to the macroscopic scale. This overview of the literature demonstrates that the peculiar structure and dynamics of daisy chains have already strongly influenced the research on artificial molecular machines, with the potential to be implemented from nanometric switchable devices to mechanically active soft-matter materials.
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Affiliation(s)
- Emilie Moulin
- SAMS Research Group, Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22, 67000 Strasbourg, France.
| | - Christian C Carmona-Vargas
- SAMS Research Group, Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22, 67000 Strasbourg, France.
| | - Nicolas Giuseppone
- SAMS Research Group, Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22, 67000 Strasbourg, France.
- Institut Universitaire de France (IUF), France
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4
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Shi JT, Chen XH, Peng YY, Wang GP, Du GY, Li Q. Tunable Fluorescence and Morphology of Aggregates Built from a Mechanically Bonded Amphiphilic Bistable [2]Rotaxane. Chemistry 2023; 29:e202302132. [PMID: 37526053 DOI: 10.1002/chem.202302132] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 07/30/2023] [Accepted: 08/01/2023] [Indexed: 08/02/2023]
Abstract
Advanced Organic Chemical Materials Co-constructed Mechanically bonded amphiphiles (MBAs), also known as mechanically interlocked molecules (MIMs), have emerged as an important kind of functional building block for the construction of artificial molecular machines and soft materials. Herein, a novel MBA, i. e., bistable [2]rotaxane H2 was designed and synthesized. In the solution state, H2 demonstrated pH and metal ion-responsive emissions due to the presence of a distance-dependent photoinduced electron transfer (PET) process and the fluorescence resonance energy transfer (FRET) process, respectively. Importantly, the amphiphilic feature of H2 has endowed it with unique self-assembly capability, and nanospheres were obtained in a mixed H2 O/CH3 CN solvent. Moreover, the morphology of H2 aggregates can be tuned from nanospheres to vesicles due to the pH-controlled shuttling motion-induced alternation of H2 amphiphilicity. Interestingly, larger spheres with novel pearl-chain-like structures from H2 were observed after adding stoichiometric Zn2+ . In particular, H2 shows pH-responsive emissions in its aggregation state, allowing the visualization of the shuttling movement by just naked eyes. It is assumed that the well-designed [2]rotaxane, and particularly the proposed concept of MBA shown here, will further enrich the families of MIMs, offering prospects for synthesizing more MIMs with novel assembly capabilities and bottom-up building dynamic smart materials with unprecedented functions.
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Affiliation(s)
- Jun-Tao Shi
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Xian-Hui Chen
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Yuan-Yuan Peng
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, P. R. China
| | - Gui-Ping Wang
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, P. R. China
| | - Guang-Yan Du
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Quan Li
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, P. R. China
- Collaborative Innovation Center for, Advanced Organic Chemical Materials Co-constructed, by the Province and Ministry, Ministry-of-Education Key Laboratory for, the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China
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5
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Khang TM, Nhien PQ, Cuc TTK, Weng CC, Wu CH, Wu JI, Hue BTB, Li YK, Lin HC. Dual and Sequential Locked/Unlocked Photochromic Effects on FRET Controlled Singlet Oxygen Processes by Contracted/Extended Forms of Diarylethene-Based [1]Rotaxane Nanoparticles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205597. [PMID: 36504441 DOI: 10.1002/smll.202205597] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 11/22/2022] [Indexed: 06/17/2023]
Abstract
Manipulations of singlet oxygen (1 O2 ) generations by the integration of both aggregation-induced emission luminogen (AIEgen) photosensitizer and photochromic moieties have diversified features in photodynamic therapy applications. Through Förster resonance energy transfer (FRET) pathway to induce red PL emissions (at 595 nm) for 1 O2 productions, [1]rotaxane containing photosensitive tetraphenylethylene (TPE) donor and photochromic diarylethene (DAE) acceptor is introduced to achieve dual and sequential locked/unlocked photoswitching effects by pH-controlled shuttling of its contracted/extended forms. Interestingly, the UV-enabled DAE ring closure speeds follow the reversed trend of DAE self-constraint degree as: contracted < extended < noninterlocked forms in [1]rotaxane analogues, thus FRET processes can be adjusted in contracted/extended forms of [1]rotaxane upon UV irradiations. Accordingly, the contracted form of [1]rotaxane is FRET-OFF locked and inert to UV exposure due to the larger bending conformation of DAE parallel (p-)conformer, compared with its extended and noninterlocked analogues possessing switchable FRET-OFF/ON behaviors activated by dual and sequential pH- and photoswitching. Owing to the advantages of 1 O2 productions tuned by multistimuli inputs (pH, UV, and blue light), an useful logic circuit for toxicity outputs of the surface modified [1]rotaxane nanoparticles (NPs) has been demonstrated to offer promising 1 O2 productions and managements based on mechanically interlocked molecules for future bioapplications.
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Affiliation(s)
- Trang Manh Khang
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu, 300093, Taiwan
| | - Pham Quoc Nhien
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu, 300093, Taiwan
- Department of Chemistry, College of Natural Sciences, Can Tho University, Can Tho City, 94000, Viet Nam
| | - Tu Thi Kim Cuc
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu, 300093, Taiwan
| | - Chang-Ching Weng
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, 300093, Taiwan
| | - Chia-Hua Wu
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu, 300093, Taiwan
| | - Judy I Wu
- Department of Chemistry, University of Houston, Houston, TX, 77204, USA
| | - Bui Thi Buu Hue
- Department of Chemistry, College of Natural Sciences, Can Tho University, Can Tho City, 94000, Viet Nam
| | - Yaw-Kuen Li
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, 300093, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu, 300093, Taiwan
| | - Hong-Cheu Lin
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu, 300093, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu, 300093, Taiwan
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6
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Khang TM, Nhien PQ, Cuc TTK, Wu CH, Hue BTB, Wu JI, Li YK, Lin HC. Dual and sequential locked/unlocked photo-switching effects on FRET processes by tightened/loosened nano-loops of diarylethene-based [1]rotaxanes. Chem Commun (Camb) 2023; 59:466-469. [PMID: 36519452 DOI: 10.1039/d2cc06285b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The self-trapping nano-loop structures of [1]rotaxanes exhibited multiple Förster resonance energy transfer (FRET) patterns via dual and sequential locking/unlocking of pH-gated and UV exposure processes. As a tightened and constrained nano-loop in the acidic condition, dithienylethene (DTE) unit was locked in the highly bending open form to forbid ring closure upon UV irradiation.
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Affiliation(s)
- Trang Manh Khang
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan.
| | - Pham Quoc Nhien
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan. .,Department of Chemistry, College of Natural Sciences, Can Tho University, Can Tho City, Vietnam
| | - Tu Thi Kim Cuc
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan.
| | - Chia-Hua Wu
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan.
| | - Bui Thi Buu Hue
- Department of Chemistry, College of Natural Sciences, Can Tho University, Can Tho City, Vietnam
| | - Judy I Wu
- Department of Chemistry, University of Houston, Houston, Texas 77204, USA
| | - Yaw-Kuen Li
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan.,Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
| | - Hong-Cheu Lin
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan. .,Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
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7
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Saura-Sanmartin A, Nicolas-Garcia T, Pastor A, Quiñonero D, Alajarin M, Martinez-Cuezva A, Berna J. Control of the assembly of a cyclic hetero[4]pseudorotaxane from a self-complementary [2]rotaxane. Chem Sci 2023; 14:4143-4151. [PMID: 37063802 PMCID: PMC10094293 DOI: 10.1039/d3sc00886j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 03/22/2023] [Indexed: 03/30/2023] Open
Abstract
The self-association of a ditopic [2]rotaxane with two macrocycles mainly leads to a [4]pseudorotaxane which can be reversibly disassembled by adding competitive binders, varying the solvent polarity and changing a binding site affinity.
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Affiliation(s)
- Adrian Saura-Sanmartin
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum" 30100 Murcia Spain
| | - Tomas Nicolas-Garcia
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum" 30100 Murcia Spain
| | - Aurelia Pastor
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum" 30100 Murcia Spain
| | - David Quiñonero
- Departamento de Química, Universidad de las Islas Baleares Crta de Valldemossa km 7.5 E-07122 Palma de Mallorca (Baleares) Spain
| | - Mateo Alajarin
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum" 30100 Murcia Spain
| | - Alberto Martinez-Cuezva
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum" 30100 Murcia Spain
| | - Jose Berna
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum" 30100 Murcia Spain
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Calatayud DG, Neophytou S, Nicodemou E, Giuffrida SG, Ge H, Pascu SI. Nano-Theranostics for the Sensing, Imaging and Therapy of Prostate Cancers. Front Chem 2022; 10:830133. [PMID: 35494646 PMCID: PMC9039169 DOI: 10.3389/fchem.2022.830133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 03/16/2022] [Indexed: 01/28/2023] Open
Abstract
We highlight hereby recent developments in the emerging field of theranostics, which encompasses the combination of therapeutics and diagnostics in a single entity aimed for an early-stage diagnosis, image-guided therapy as well as evaluation of therapeutic outcomes of relevance to prostate cancer (PCa). Prostate cancer is one of the most common malignancies in men and a frequent cause of male cancer death. As such, this overview is concerned with recent developments in imaging and sensing of relevance to prostate cancer diagnosis and therapeutic monitoring. A major advantage for the effective treatment of PCa is an early diagnosis that would provide information for an appropriate treatment. Several imaging techniques are being developed to diagnose and monitor different stages of cancer in general, and patient stratification is particularly relevant for PCa. Hybrid imaging techniques applicable for diagnosis combine complementary structural and morphological information to enhance resolution and sensitivity of imaging. The focus of this review is to sum up some of the most recent advances in the nanotechnological approaches to the sensing and treatment of prostate cancer (PCa). Targeted imaging using nanoparticles, radiotracers and biomarkers could result to a more specialised and personalised diagnosis and treatment of PCa. A myriad of reports has been published literature proposing methods to detect and treat PCa using nanoparticles but the number of techniques approved for clinical use is relatively small. Another facet of this report is on reviewing aspects of the role of functional nanoparticles in multimodality imaging therapy considering recent developments in simultaneous PET-MRI (Positron Emission Tomography-Magnetic Resonance Imaging) coupled with optical imaging in vitro and in vivo, whilst highlighting feasible case studies that hold promise for the next generation of dual modality medical imaging of PCa. It is envisaged that progress in the field of imaging and sensing domains, taken together, could benefit from the biomedical implementation of new synthetic platforms such as metal complexes and functional materials supported on organic molecular species, which can be conjugated to targeting biomolecules and encompass adaptable and versatile molecular architectures. Furthermore, we include hereby an overview of aspects of biosensing methods aimed to tackle PCa: prostate biomarkers such as Prostate Specific Antigen (PSA) have been incorporated into synthetic platforms and explored in the context of sensing and imaging applications in preclinical investigations for the early detection of PCa. Finally, some of the societal concerns around nanotechnology being used for the detection of PCa are considered and addressed together with the concerns about the toxicity of nanoparticles–these were aspects of recent lively debates that currently hamper the clinical advancements of nano-theranostics. The publications survey conducted for this review includes, to the best of our knowledge, some of the most recent relevant literature examples from the state-of-the-art. Highlighting these advances would be of interest to the biomedical research community aiming to advance the application of theranostics particularly in PCa diagnosis and treatment, but also to those interested in the development of new probes and methodologies for the simultaneous imaging and therapy monitoring employed for PCa targeting.
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Affiliation(s)
- David G. Calatayud
- Department of Chemistry, University of Bath, Bath, United Kingdom
- Department of Electroceramics, Instituto de Ceramica y Vidrio - CSIC, Madrid, Spain
- *Correspondence: Sofia I. Pascu, ; David G. Calatayud,
| | - Sotia Neophytou
- Department of Chemistry, University of Bath, Bath, United Kingdom
| | - Eleni Nicodemou
- Department of Chemistry, University of Bath, Bath, United Kingdom
| | | | - Haobo Ge
- Department of Chemistry, University of Bath, Bath, United Kingdom
| | - Sofia I. Pascu
- Department of Chemistry, University of Bath, Bath, United Kingdom
- Centre of Therapeutic Innovations, University of Bath, Bath, United Kingdom
- *Correspondence: Sofia I. Pascu, ; David G. Calatayud,
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Mashiyama Y, Maruyama H, Satou E, Fujimori A. Spherical Particle Formation that Deteriorates Thixotropic Property and its Suppression Strategy for Diamide-Based Additives having Two-Hydrocarbons. J Oleo Sci 2022; 71:505-514. [DOI: 10.5650/jos.ess21311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Affiliation(s)
- Yuki Mashiyama
- Graduate School of Science and Engineering, Saitama University
| | - Haruka Maruyama
- Graduate School of Science and Engineering, Saitama University
| | - Eiichi Satou
- R & D Dept. Laboratory Additive Unit, Kusumoto Chemicals Ltd
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10
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Pan T, Li J, Li B, Xu Q, Cui Z, Shang J, Ge Y, Qi Z. Guanidinium-Responsive Crown Ether-Based Macrocyclic Amphiphile in Aqueous Medium. J Phys Chem Lett 2021; 12:7418-7422. [PMID: 34330157 DOI: 10.1021/acs.jpclett.0c02994] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Supramolecular assemblies based on oligo(ethylene glycol) (OEG) building blocks are well-known for their neutral chemical property and thermal-responsive behavior. Here, the cyclic "CLOSED" and linear "OPEN" typologies of OEGs led to dramatic difference in the sensitivity to guanidinium-containing species. From thermodynamic studies, the association constant (Ka) between the "CLOSED" form amphiphile and guanidinium salt was determined to be 28.7 M-1, whereas there was no detectable binding affinity for the "OPEN" form. Therefore, considering ion specificity, the present results establish that crown ether derivatives with "CLOSED" and "OPEN" topologies provide an easy-to-access model pair with designed ion-recognition sites and special functional moieties and geometries (like the binding pockets of enzymes or ion channels in cellular members) that allow the manipulation of the intercrossed relationship between supramolecular solutes, waters, and guanidinium salts. These supramolecular forces in aqueous solution offered an alternative strategy to fabricate thermal-responsive systems in ionic medium.
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Affiliation(s)
- Tiezheng Pan
- School of Life Sciences, Sino-German Joint Research Lab for Space Biomaterials and Translational Technology, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
| | - Jiangbo Li
- School of Life Sciences, Sino-German Joint Research Lab for Space Biomaterials and Translational Technology, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
| | - Bo Li
- School of Life Sciences, Sino-German Joint Research Lab for Space Biomaterials and Translational Technology, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
| | - Qiangqiang Xu
- School of Life Sciences, Sino-German Joint Research Lab for Space Biomaterials and Translational Technology, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
| | - Zhiliyu Cui
- School of Life Sciences, Sino-German Joint Research Lab for Space Biomaterials and Translational Technology, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
| | - Jie Shang
- School of Life Sciences, Sino-German Joint Research Lab for Space Biomaterials and Translational Technology, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
| | - Yan Ge
- School of Life Sciences, Sino-German Joint Research Lab for Space Biomaterials and Translational Technology, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
| | - Zhenhui Qi
- School of Life Sciences, Sino-German Joint Research Lab for Space Biomaterials and Translational Technology, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
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11
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Lin TC, Liu ZY, Liu SH, Koshevoy IO, Chou PT. Counterion Migration Driven by Light-Induced Intramolecular Charge Transfer. JACS AU 2021; 1:282-293. [PMID: 34467293 PMCID: PMC8395631 DOI: 10.1021/jacsau.0c00107] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Indexed: 05/14/2023]
Abstract
A series of D-π-A + pyridinium compounds, in which D = -NPh2 and A+ = -PyMe+ are linked by various amounts of linear phenyl spacers, were strategically designed and synthesized. Their characterization revealed the presence of excited-state intramolecular charge transfer (ESICT) that triggers a corresponding response from the counterion. In medium and strong polar solvents, the fast solvent relaxation occurring after ESICT overwhelms the counterion effect, showing typical emission solvatochromism. In weakly polar solvents, ESICT induces counteranion migration for electrostatic stabilization, the time scale of which is dependent on the radius of the counteranion, the length of the π-linker, and the viscosity of the solvent. In low-viscosity organic solvents such as toluene, counteranion migration occurs within several tens to hundreds of picoseconds, resulting in a time-dependent continuous emission that can be resolved from the spectral temporal evolution. Concrete evidence for this is provided by the chemical synthesis of a D-π-A + pyridinium-sulfur trioxide- zwitterion, where anion migration is restricted due to its internally locked ion pair. As a result, only a single emission band can be observed. These comprehensive studies prove that the ion migration process may be significant for a wide range of ESICT-type ionic fluorophores. Such an ionic movement, triggered by optically pumped ESICT of the D-π-A + dyad, is similar to the molecular machine driven by the redox reaction, but with a facile access and fast response.
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Affiliation(s)
- Ta-Chun Lin
- Department
of Chemistry, National Taiwan University, Taipei, Taiwan 10617, ROC
| | - Zong-Ying Liu
- Department
of Chemistry, National Taiwan University, Taipei, Taiwan 10617, ROC
| | - Shih-Hung Liu
- Department
of Chemistry, National Taiwan University, Taipei, Taiwan 10617, ROC
| | - Igor O. Koshevoy
- Department
of Chemistry, University of Eastern Finland, Yliopistokatu 7, 80101 Joensuu, Finland
| | - Pi-Tai Chou
- Department
of Chemistry, National Taiwan University, Taipei, Taiwan 10617, ROC
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12
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Peng X, Wang L, Chen S. Donor–acceptor charge transfer assemblies based on naphthalene diimides(NDIs). J INCL PHENOM MACRO 2021. [DOI: 10.1007/s10847-021-01044-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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13
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Tsuda S, Komai Y, Fujiwara SI, Nishiyama Y. Cyclodextrin-Based [c2]Daisy Chain Rotaxane Insulating Two Diarylacetylene Cores. Chemistry 2021; 27:1966-1969. [PMID: 33089897 DOI: 10.1002/chem.202004505] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Indexed: 11/10/2022]
Abstract
A [c2]daisy chain rotaxane with two diarylacetylene cores was efficiently synthesized in 53 % yield by capping a C2 -symmetric pseudo[2]rotaxane composed of two diarylacetylene-substituted permethylated α-cyclodextrins (PM α-CDs) with aniline stoppers. The maximum absorption wavelength of the [c2]daisy chain rotaxane remained almost unchanged in various solvents, unlike that of the stoppered monomer, indicating that the two independent diarylacetylene cores were insulated from the external environment by the PM α-CDs. Furthermore, the [c2]daisy chain rotaxane exhibited fluorescence emission derived from both diarylacetylene monomers and the excimer, which implies that the [c2]daisy chain structure can undergo contraction and extension. This is the first demonstration of a system in which excimer formation between two π-conjugated molecules within an isolated space can be controlled by the unique motion of a [c2]daisy chain rotaxane.
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Affiliation(s)
- Susumu Tsuda
- Department of Chemistry, Osaka Dental University, Hirakata, Osaka, 5731121, Japan
| | - Yoshitsugu Komai
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka, 5648680, Japan
| | - Shin-Ichi Fujiwara
- Department of Chemistry, Osaka Dental University, Hirakata, Osaka, 5731121, Japan
| | - Yutaka Nishiyama
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka, 5648680, Japan
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Azobenzene Based Photo-responsive Mechanical Actuator Fabricated by Intermolecular H-bond Interaction. CHINESE JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1007/s10118-021-2504-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Guo QH, Qiu Y, Kuang X, Liang J, Feng Y, Zhang L, Jiao Y, Shen D, Astumian RD, Stoddart JF. Artificial Molecular Pump Operating in Response to Electricity and Light. J Am Chem Soc 2020; 142:14443-14449. [DOI: 10.1021/jacs.0c06663] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Qing-Hui Guo
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yunyan Qiu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Xinyi Kuang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Jiaqi Liang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yuanning Feng
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Long Zhang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yang Jiao
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Dengke Shen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - R. Dean Astumian
- Department of Physics, University of Maine, 5709 Bennet Hall, Orono, Maine 04469, United States
| | - J. Fraser Stoddart
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Institute for Molecular Design and Synthesis, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
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16
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Van Raden JM, Jarenwattananon NN, Zakharov LN, Jasti R. Active Metal Template Synthesis and Characterization of a Nanohoop [
c
2]Daisy Chain Rotaxane. Chemistry 2020; 26:10205-10209. [DOI: 10.1002/chem.202001389] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Indexed: 11/10/2022]
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17
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3D printed polylactic acid/carbon black electrodes with nearly ideal electrochemical behaviour. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2019.113745] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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18
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Mayank, Kumar D, Kaur N, Giri R, Singh N. A biscoumarin scaffold as an efficient anti-Zika virus lead with NS3-helicase inhibitory potential: in vitro and in silico investigations. NEW J CHEM 2020. [DOI: 10.1039/c9nj05225a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Competitive NTPase inhibition and the potential binding to the RNA binding pocket of Zika NS3-helicase were observed using biscoumarin derivatives. The SAR was established, and MN-9 and MN-10 were identified as potent anti-Zika leads.
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Affiliation(s)
- Mayank
- Department of Chemistry, Indian Institute of Technology Ropar
- India
| | - Deepak Kumar
- School of Basic Sciences, Indian Institute of Technology Mandi
- India
| | | | - Rajanish Giri
- School of Basic Sciences, Indian Institute of Technology Mandi
- India
| | - Narinder Singh
- Department of Chemistry, Indian Institute of Technology Ropar
- India
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19
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Mayank, Singh A, Kaur N, Garg N, Singh N. Anticancer SAR establishment and novel accruing signal transduction model of drug action using biscoumarin scaffold. Comput Biol Chem 2019; 83:107104. [PMID: 31546212 DOI: 10.1016/j.compbiolchem.2019.107104] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 08/07/2019] [Accepted: 08/12/2019] [Indexed: 01/20/2023]
Abstract
In this paper, we have established methylenebis (4-hydroxy-2H-chromen-2-one) as a promising anticancer scaffold with kinesin spindle protein (KSP) inhibitory activity under malignant condition. A series of biscoumarin derivatives (MN1 to MN30) with different substituent were synthesized, and their anticancer activity was explored. Six biscoumarin derivatives that were found active were further selected to formulate organic nanoparticles (ONPs). Anticancer activity of both the forms (viz conventional and ONPs) was compared. MN30 was found most potent whereby MN10 showed good anticancer activity in both, i.e., conventional and ONP form; the structural activity relationship (SAR) study has been established. Computational investigation revealed biscoumarin scaffold as a suitable pharmacophore to bind against KSP protein. Molecular dynamics simulation studies revealed protein-ligand stability and dynamic behavior of biscoumarin-KSP complex. Finally, accruing signal transduction model was formulated to explain the observed MTT trend of conventional and ONP form. The model seems useful towards solving population specific varied results of chemotherapeutic agents. According to the model, MN10 and MN30 derivatives have good pharmacodynamics inertia and therefore, both the molecules were able to provide dose-dependent cytotoxic results.
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Affiliation(s)
- Mayank
- Department of Chemistry, Indian Institute of Technology Ropar, Punjab, 140001, India
| | - Ashutosh Singh
- School of Basic Sciences, Indian Institute of Technology Mandi, Himachal Pradesh, 175005, India
| | - Navneet Kaur
- Department of Chemistry, Punjab University, Chandigarh, 160014, India.
| | - Neha Garg
- School of Basic Sciences, Indian Institute of Technology Mandi, Himachal Pradesh, 175005, India.
| | - Narinder Singh
- Department of Chemistry, Indian Institute of Technology Ropar, Punjab, 140001, India.
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20
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21
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22
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Mayank, Kaur N, Singh N. Structural insights and influence of V599 mutations on the overall dynamics of BRAF protein against its kinase domains. Integr Biol (Camb) 2019; 10:646-657. [PMID: 30229251 DOI: 10.1039/c8ib00095f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mutations in the BRAF gene are well known for their oncogenic effects. Point mutations in V599 are particularly oncogenic and are considered important for therapeutic purposes. Along with wild type, other V599 mutated BRAF variants viz. V599E, V599D and V599R are reported and crystals of the former two with inhibitor (BAY43-9006) are further detailed. Both wild-type and mutated BRAF forms show similar interaction patterns with BAY43-9006, but the 599th residue did not show any involvement in the interactions. Upon BAY43-9006 binding, kinase domains of both forms were found adopting essentially identical conformations. However, BAY43-9006 shows a varied activity profile in the case of the wild and V599E variant of the BRAF protein. Furthermore, MMGBSA binding energy results for all four BRAF variants, further revealed the importance of the 599th residue. In-depth analysis viz. molecular dynamics, residue correlation studies and residue interaction network (RIN) analyses were conducted, providing a deep insight into the 599th residue and its impact on the overall dynamics of BRAF protein. Our findings reveal that the mutated residue at the 599th position not only changed the BAY43-9006-BRAF binding behaviour but also produced a massive impact on the overall dynamic behaviour of the protein. The insights obtained herein could be of great relevance for designing new BRAF inhibitors aimed at getting ideal activity against all BRAF forms.
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Affiliation(s)
- Mayank
- Department of Chemistry, Indian Institute of Technology Ropar, Punjab 140001, India.
| | - Navneet Kaur
- Department of Chemistry, Punjab University Chandigarh, Punjab, India.
| | - Narinder Singh
- Department of Chemistry, Indian Institute of Technology Ropar, Punjab 140001, India.
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23
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Jung J, Liu W, Kim S, Lee D. Redox-Driven Folding, Unfolding, and Refolding of Bis(tetrathiafulvalene) Molecular Switch. J Org Chem 2019; 84:6258-6269. [DOI: 10.1021/acs.joc.9b00541] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jiyoung Jung
- Penn State Scranton, 120 Ridge View Drive, Dunmore, Pennsylvania 18512, United States
| | - Wenjun Liu
- Analytical Research & Development, Merck Research Laboratories, Merck & Company, Incorporation, Rahway, New Jersey 07065, United States
| | - Seyong Kim
- Department of Chemistry, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
| | - Dongwhan Lee
- Department of Chemistry, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
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24
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Abstract
Bistable [ c2]daisy chain rotaxanes represent a particularly intriguing class of interlocked molecules that can produce internal sliding movements with a net contraction or extension at the single-molecule level. These nanometric motions show some analogies with the sliding motions of actin and myosin filaments in sarcomeres, and this is why [ c2]daisy chain rotaxanes have been also named as “molecular muscles,” as their first synthesis in 2000. In this minireview, the authors discuss the recent history of these molecules, their modular chemical structures, and the various synthetic pathways described in the literature to access them. The authors also detail how their internal motions can be controlled and characterized by a number of chemical and physical tools. The authors finally show that their integration within polymers and materials can give access to synchronized motions and amplifications up to the macroscopic scale. Overall, the numerous examples that have been described in the literature to date demonstrate that this family of molecules has already strongly influenced the entire field of research on artificial molecular machines, and has the potential to be implemented as actuators working at all scales, from nanometric-switchable devices to mechanically active soft matter materials.
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Affiliation(s)
- Antoine Antoine
- SAMS Research Group, Institut Charles Sadron, CNRS, University of Strasbourg BP 84047
| | - Emilie Moulin
- SAMS Research Group, Institut Charles Sadron, CNRS, University of Strasbourg BP 84047
| | - Gad Fuks
- SAMS Research Group, Institut Charles Sadron, CNRS, University of Strasbourg BP 84047
| | - Nicolas Giuseppone
- SAMS Research Group, Institut Charles Sadron, CNRS, University of Strasbourg BP 84047
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25
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Ng AWH, Au‐Yeung HY. Molecular Links and Knots from Naphthalenediimide: A Balance of Weak Interactions. Chem Asian J 2019; 14:1602-1612. [DOI: 10.1002/asia.201801681] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Antony Wing Hung Ng
- Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong P. R. China
| | - Ho Yu Au‐Yeung
- Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong P. R. China
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26
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Wenholz DS, Bhadbhade M, Kandemir H, Ho J, Kumar N, Black DS. Substituent effects in solid-state assembly of activated benzotriazoles. CrystEngComm 2019. [DOI: 10.1039/c8ce01757c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Aromatic donor–acceptor stacking involving electron-rich π-donors and electron-deficient π-acceptors has been utilized in a broad spectrum of diverse applications to great effect.
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Affiliation(s)
| | | | - Hakan Kandemir
- School of Chemistry
- UNSW Sydney
- Australia
- Department of Chemistry
- Faculty of Art and Science
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27
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Ikejiri S, Takashima Y, Osaki M, Yamaguchi H, Harada A. Solvent-Free Photoresponsive Artificial Muscles Rapidly Driven by Molecular Machines. J Am Chem Soc 2018; 140:17308-17315. [DOI: 10.1021/jacs.8b11351] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Shinji Ikejiri
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Yoshinori Takashima
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
- Institute for Advanced Co-Creation Studies, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Motofumi Osaki
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Hiroyasu Yamaguchi
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Akira Harada
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
- JST-ImPACT, 5-7, Chiyoda-ku, Tokyo 100-8914, Japan
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28
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Aeschi Y, Drayss‐Orth S, Valášek M, Häussinger D, Mayor M. Aqueous Assembly of Zwitterionic Daisy Chains. Chemistry 2018; 25:285-295. [DOI: 10.1002/chem.201803944] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Indexed: 12/19/2022]
Affiliation(s)
- Yves Aeschi
- Department of ChemistryUniversity of Basel St. Johanns-Ring 19 4056 Basel Switzerland
- Swiss Nanoscience InstituteUniversity of Basel Klingelbergstrasse 82 4056 Basel Switzerland
| | - Sylvie Drayss‐Orth
- Department of ChemistryUniversity of Basel St. Johanns-Ring 19 4056 Basel Switzerland
| | - Michal Valášek
- Institute for Nanotechnology (INT)Karlsruhe Institute of Technology (KIT) P. O. Box 3640 76021 Karlsruhe Germany
| | - Daniel Häussinger
- Department of ChemistryUniversity of Basel St. Johanns-Ring 19 4056 Basel Switzerland
| | - Marcel Mayor
- Department of ChemistryUniversity of Basel St. Johanns-Ring 19 4056 Basel Switzerland
- Swiss Nanoscience InstituteUniversity of Basel Klingelbergstrasse 82 4056 Basel Switzerland
- Institute for Nanotechnology (INT)Karlsruhe Institute of Technology (KIT) P. O. Box 3640 76021 Karlsruhe Germany
- Lehn Institute of Functional Materials (LIFM)School of ChemistrySun Yat-Sen University (SYSU) Guangzhou 510275 P. R. China
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29
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Zhang Q, Rao SJ, Xie T, Li X, Xu TY, Li DW, Qu DH, Long YT, Tian H. Muscle-like Artificial Molecular Actuators for Nanoparticles. Chem 2018. [DOI: 10.1016/j.chempr.2018.08.030] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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30
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Lipke MC, Wu Y, Roy I, Wang Y, Wasielewski MR, Stoddart JF. Shuttling Rates, Electronic States, and Hysteresis in a Ring-in-Ring Rotaxane. ACS CENTRAL SCIENCE 2018; 4:362-371. [PMID: 29632882 PMCID: PMC5879476 DOI: 10.1021/acscentsci.7b00535] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Indexed: 06/08/2023]
Abstract
The trisradical recognition motif between a 4,4'-bipyridinium radical cation and a cyclo-bis-4,4'-bipyridinium diradical dication has been employed previously in rotaxanes to control their nanomechanical and electronic properties. Herein, we describe the synthesis and characterization of a redox-active ring-in-ring [2]rotaxane BBR·8PF6 that employs a tetraradical variant of this recognition motif. A square-shaped bis-4,4'-bipyridinium cyclophane is mechanically interlocked around the dumbbell component of this rotaxane, and the dumbbell itself incorporates a smaller bis-4,4'-bipyridinium cyclophane into its covalently bonded structure. This small cyclophane serves as a significant impediment to the shuttling of the larger ring across the dumbbell component of BBR8+ , whereas reduction to the tetraradical tetracationic state BBR4(+•) results in strong association of the two cyclophanes driven by two radical-pairing interactions. In these respects, BBR·8PF6 exhibits qualitatively similar behavior to its predecessors that interconvert between hexacationic and trisradical tricationic states. The rigid preorganization of two bipyridinium groups within the dumbbell of BBR·8PF6 confers, however, two distinct properties upon this rotaxane: (1) the rate of shuttling is reduced significantly relative to those of its predecessors, resulting in marked electrochemical hysteresis observed by cyclic voltammetry for switching between the BBR8+/BBR4(+•) states, and (2) the formally tetraradical form of the rotaxane, BBR4(+•) , exhibits a diamagnetic ground state, which, as a result of the slow shuttling motions within BBR4(+•) , has a long enough lifetime to be characterized by 1H NMR spectroscopy.
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Affiliation(s)
- Mark C. Lipke
- Department
of Chemistry and Chemical Biology, Rutgers,
The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, United States
| | - Yilei Wu
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Indranil Roy
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yuping Wang
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Michael R. Wasielewski
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - J. Fraser Stoddart
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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31
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Bazargan G, Sohlberg K. Advances in modelling switchable mechanically interlocked molecular architectures. INT REV PHYS CHEM 2018. [DOI: 10.1080/0144235x.2018.1419042] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Gloria Bazargan
- Department of Chemistry, Drexel University, Philadelphia, PA, USA
| | - Karl Sohlberg
- Department of Chemistry, Drexel University, Philadelphia, PA, USA
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Diac A, Matache M, Grosu I, Hădade ND. Naphthalenediimide - A Unique Motif in Macrocyclic and Interlocked Supramolecular Structures. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701362] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Andreea Diac
- Faculty of Chemistry and Chemical Engineering, Supramolecular Organic and Organometallic Chemistry Centre; “Babeş-Bolyai” University; 11 Arany Janos Str. RO-400028 Cluj-Napoca Romania
| | - Mihaela Matache
- University of Bucharest; Faculty of Chemistry, Department of Organic Chemistry, Biochemistry and Catalysis, Research Centre of Applied Organic Chemistry; 90-92 Panduri Street RO-050663 Bucharest Romania
| | - Ion Grosu
- Faculty of Chemistry and Chemical Engineering, Supramolecular Organic and Organometallic Chemistry Centre; “Babeş-Bolyai” University; 11 Arany Janos Str. RO-400028 Cluj-Napoca Romania
| | - Niculina D. Hădade
- Faculty of Chemistry and Chemical Engineering, Supramolecular Organic and Organometallic Chemistry Centre; “Babeş-Bolyai” University; 11 Arany Janos Str. RO-400028 Cluj-Napoca Romania
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Dong S, Wang L, Wu J, Jin L, Ge Y, Qi Z, Wu C. Thermosensitive Phase Behavior of Benzo-21-crown-7 and Its Derivatives. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:13861-13866. [PMID: 29096440 DOI: 10.1021/acs.langmuir.7b03431] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
For designing water-soluble responsive materials, utilizing crown ethers as main building blocks has been rarely explored in contrast to their linear poly(ethylene glycol) counterparts. In the current study, we report the robust thermoresponsive properties of the benzo-21-crown-7 (B21C7) family with lower critical solution temperature (LCST) and upper critical solution temperature (UCST) behavior. Different substituent groups on the benzene ring exhibit significant effects on water solubility and thermoresponsiveness. B21C7 and its cyano derivative display LCST phenomena, while B21C7-based carboxylic acid derivative presents UCST followed by LCST phase behavior. Supramolecular interactions with KCl provide an additional tuning approach for this crown ether system. These results demonstrate that B21C7s can serve as an easily accessible toolbox to develop new thermosensitive systems and prepare thermally responsive materials.
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Affiliation(s)
- Shengyi Dong
- College of Chemistry and Chemical Engineering, Hunan University , Changsha 410082, Hunan, P. R. China
| | - Li Wang
- College of Chemistry and Chemical Engineering, Hunan University , Changsha 410082, Hunan, P. R. China
| | - Jianfeng Wu
- Sino-German Joint Research Lab for Space Biomaterials and Translational Technology, School of Life Sciences, Northwestern Polytechnical University , Xi'an, Shaanxi 710072, P. R. China
| | - Lin Jin
- Sino-German Joint Research Lab for Space Biomaterials and Translational Technology, School of Life Sciences, Northwestern Polytechnical University , Xi'an, Shaanxi 710072, P. R. China
| | - Yan Ge
- Sino-German Joint Research Lab for Space Biomaterials and Translational Technology, School of Life Sciences, Northwestern Polytechnical University , Xi'an, Shaanxi 710072, P. R. China
| | - Zhenhui Qi
- Sino-German Joint Research Lab for Space Biomaterials and Translational Technology, School of Life Sciences, Northwestern Polytechnical University , Xi'an, Shaanxi 710072, P. R. China
| | - Changzhu Wu
- Institute of Microbiology, Technische Universität Dresden , Zellescher Weg 20b, 01217 Dresden, Germany
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Aeschi Y, Drayss-Orth S, Valášek M, Raps F, Häussinger D, Mayor M. Assembly of [2]Rotaxanes in Water. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700640] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Yves Aeschi
- Department of Chemistry; University of Basel; St. Johanns-Ring 19 4056 Basel Switzerland
- Swiss Nanoscience Institute; University of Basel; Klingelbergstrasse 82 4056 Basel Switzerland
| | - Sylvie Drayss-Orth
- Department of Chemistry; University of Basel; St. Johanns-Ring 19 4056 Basel Switzerland
| | - Michal Valášek
- Institute for Nanotechnology (INT); Karlsruhe Institute of Technology (KIT); P. O. Box 3640 76021 Karlsruhe Germany
| | - Felix Raps
- Department of Chemistry; University of Basel; St. Johanns-Ring 19 4056 Basel Switzerland
| | - Daniel Häussinger
- Department of Chemistry; University of Basel; St. Johanns-Ring 19 4056 Basel Switzerland
| | - Marcel Mayor
- Department of Chemistry; University of Basel; St. Johanns-Ring 19 4056 Basel Switzerland
- Swiss Nanoscience Institute; University of Basel; Klingelbergstrasse 82 4056 Basel Switzerland
- Institute for Nanotechnology (INT); Karlsruhe Institute of Technology (KIT); P. O. Box 3640 76021 Karlsruhe Germany
- Lehn Institute of Functional Materials (LIFM); Sun Yat-Sen University; Guangzhou China
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35
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Fukino T, Yamagishi H, Aida T. Redox-Responsive Molecular Systems and Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1603888. [PMID: 27990693 DOI: 10.1002/adma.201603888] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 09/15/2016] [Indexed: 06/06/2023]
Abstract
Redox reactions can alter the electronic, optical, and magnetic properties of molecules and their ensembles by adding or removing electrons. Here, the developments made over the past 10 years using molecular events are discussed, such as assembly/disassembly, transformation of ensembles, geometric changes, and molecular motions that are designed to be redox-responsive. Considerable progress has occurred in the application of these events to the realization of electronic memory, color displays, actuators, adhesives, and drug delivery. In these cases, systems behave in either a highly or a poorly correlated manner depending on the number of redox-active units involved, based on the method of integration. One of the great advantages of redox-responsive devices and materials is that they have the potential to be readily integrated into existing electronic technologies.
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Affiliation(s)
- Takahiro Fukino
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Hiroshi Yamagishi
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Takuzo Aida
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
- RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
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Li HG, Wang GW. Liquid-Assisted One-Pot Mechanosynthesis and Properties of Neutral Donor–Acceptor [2]Rotaxanes. J Org Chem 2017; 82:6341-6348. [DOI: 10.1021/acs.joc.7b00912] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hai-Gen Li
- CAS
Key Laboratory of Soft Matter Chemistry, Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM), Hefei National Laboratory
for Physical Sciences at Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Guan-Wu Wang
- CAS
Key Laboratory of Soft Matter Chemistry, Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM), Hefei National Laboratory
for Physical Sciences at Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, Gansu 730000, P. R. China
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Dana S, Keshri SK, Shukla J, Vikramdeo KS, Mondal N, Mukhopadhyay P, Dhar SK. Design, Synthesis and Evaluation of Bifunctional Acridinine-Naphthalenediimide Redox-Active Conjugates as Antimalarials. ACS OMEGA 2016; 1:318-333. [PMID: 30023479 PMCID: PMC6044610 DOI: 10.1021/acsomega.6b00060] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Accepted: 06/30/2016] [Indexed: 06/08/2023]
Abstract
A novel class of bifunctional molecules was synthesized integrating acridine (Ac) and redox-active naphthalenediimide (NDI) scaffolds directly and through a flexible linker (en). We evaluated in vitro antiplasmodial activity, physicochemical properties, and a possible mode of action. Theoretical studies suggested electronic segmentation between the electron-rich Ac and electron-deficient NDI scaffolds. Orthogonal Ac-NDI molecules showed activities in the micromolar to submicromolar range against a chloroquine (CQ)-sensitive strain of human malaria pathogen Plasmodium falciparum (maximum activity, IC50: 0.419 μM). The flexible Ac-en-NDI molecules were most potent and showed activity in the nanomolar range against both CQ-sensitive (with most effective compounds, IC50: 3.65 and 4.33 nM) as well as CQ-resistant (with most effective compounds, IC50: 52.20 and 28.53 nM) strains of P. falciparum. Significantly, with CQ-resistant strains, the activity of the most effective compounds was 1 order of magnitude better than that of standard drug CQ. Ac-en-NDI-conjugated molecules were significantly more potent than the individual NDI and Ac-based molecules. The structure-activity relationship (SAR) suggests that the flexible spacer (en) linking the Ac and NDI scaffolds plays a vital role in exhibiting improved potency. None of the molecules triggered hemolysis in culture, and the most potent compounds did not show cytotoxicity in vitro against mammalian fibroblast NIH3T3 cells at their respective IC50 values. The other significant outcome of this work is that some of the investigated molecules have the potential to affect multiple processes in the parasite including the hemozoin formation in digestive vacuoles (DVs), mitochondrial membrane potential, and the redox homeostasis of the parasite.
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Affiliation(s)
- Srikanta Dana
- Supramolecular
and Material Chemistry Lab, School of Physical Sciences, Jawaharlal Nehru University, New Mehrauli Road, 110067 New Delhi, India
- Special
Centre for Molecular Medicine, Jawaharlal
Nehru University, New
Mehrauli Road, 110067 New Delhi, India
| | - Sudhir Kumar Keshri
- Supramolecular
and Material Chemistry Lab, School of Physical Sciences, Jawaharlal Nehru University, New Mehrauli Road, 110067 New Delhi, India
| | - Jyoti Shukla
- Supramolecular
and Material Chemistry Lab, School of Physical Sciences, Jawaharlal Nehru University, New Mehrauli Road, 110067 New Delhi, India
| | - Kunwar Somesh Vikramdeo
- School
of Life Sciences, Jawaharlal Nehru University, New Mehrauli Road, 110067 New Delhi, India
| | - Neelima Mondal
- School
of Life Sciences, Jawaharlal Nehru University, New Mehrauli Road, 110067 New Delhi, India
| | - Pritam Mukhopadhyay
- Supramolecular
and Material Chemistry Lab, School of Physical Sciences, Jawaharlal Nehru University, New Mehrauli Road, 110067 New Delhi, India
| | - Suman Kumar Dhar
- Special
Centre for Molecular Medicine, Jawaharlal
Nehru University, New
Mehrauli Road, 110067 New Delhi, India
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39
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Mechanically interlocked daisy-chain-like structures as multidimensional molecular muscles. Nat Chem 2016. [DOI: 10.1038/nchem.2608] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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40
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Fast response dry-type artificial molecular muscles with [c2]daisy chains. Nat Chem 2016; 8:625-32. [PMID: 27219709 DOI: 10.1038/nchem.2513] [Citation(s) in RCA: 260] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 03/17/2015] [Indexed: 12/23/2022]
Abstract
Hierarchically organized myosin and actin filaments found in biological systems exhibit contraction and expansion behaviours that produce work and force by consuming chemical energy. Inspired by these naturally occurring examples, we have developed photoresponsive wet- and dry-type molecular actuators built from rotaxane-based compounds known as [c2]daisy chains (specifically, [c2]AzoCD2 hydrogel and [c2]AzoCD2 xerogel). These actuators were prepared via polycondensation between four-armed poly(ethylene glycol) and a [c2]daisy chain based on α-cyclodextrin as the host component and azobenzene as a photoresponsive guest component. The light-induced actuation arises from the sliding motion of the [c2]daisy chain unit. Ultraviolet irradiation caused the gels to bend towards the light source. The response of the [c2]AzoCD2 xerogel, even under dry conditions, is very fast (7° every second), which is 10,800 times faster than the [c2]AzoCD2 hydrogel (7° every 3 h). In addition, the [c2]AzoCD2 xerogel was used as a crane arm to lift an object using ultraviolet irradiation to produce mechanical work.
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41
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Waelès P, Riss-Yaw B, Coutrot F. Synthesis of a pH-Sensitive Hetero[4]Rotaxane Molecular Machine that Combines [c2]Daisy and [2]Rotaxane Arrangements. Chemistry 2016; 22:6837-45. [DOI: 10.1002/chem.201600453] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Philip Waelès
- Supramolecular Machines and ARchitectures Team; Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS; Université Montpellier, ENSCM; case courrier 1706, Bâtiment Chimie (17), 3ème étage, Faculté des Sciences, Place Eugène Bataillon 34095 Montpellier cedex 5 France
| | - Benjamin Riss-Yaw
- Supramolecular Machines and ARchitectures Team; Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS; Université Montpellier, ENSCM; case courrier 1706, Bâtiment Chimie (17), 3ème étage, Faculté des Sciences, Place Eugène Bataillon 34095 Montpellier cedex 5 France
| | - Frédéric Coutrot
- Supramolecular Machines and ARchitectures Team; Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS; Université Montpellier, ENSCM; case courrier 1706, Bâtiment Chimie (17), 3ème étage, Faculté des Sciences, Place Eugène Bataillon 34095 Montpellier cedex 5 France
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Abstract
The past quarter of a century has witnessed an increasing engagement on the part of physicists and chemists in the design and synthesis of molecular machines de novo. This minireview traces the development of artificial molecular machines from their prototypes in the form of shuttles and switches to their emergence as motors and pumps where supplies of energy in the form of chemical fuel, electrochemical potential and light activation become a minimum requirement for them to function away from equilibrium. The challenge facing this rapidly growing community of scientists and engineers today is one of putting wholly synthetic molecules to work, both individually and as collections. Here, we highlight some of the recent conceptual and practical advances relating to the operation of wholly synthetic rotary and linear motors.
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Affiliation(s)
- Chuyang Cheng
- Department of Chemistry, Northwestern University, 2145 Sheridan Rd., Evanston, IL, 60208, USA
| | - J Fraser Stoddart
- Department of Chemistry, Northwestern University, 2145 Sheridan Rd., Evanston, IL, 60208, USA.
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Cheng M, Liu L, Cao Y, Jiang J, Wang L. A Phosphine Oxide Functional Group Based [2]Rotaxane That Operates as a Multistable Molecular Shuttle. Chemphyschem 2016; 17:1835-9. [DOI: 10.1002/cphc.201501016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Ming Cheng
- Key Laboratory of Mesoscopic Chemistry of MOE; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 China
| | - Li Liu
- Key Laboratory of Mesoscopic Chemistry of MOE; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 China
| | - Yihan Cao
- Key Laboratory of Mesoscopic Chemistry of MOE; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 China
| | - Juli Jiang
- Key Laboratory of Mesoscopic Chemistry of MOE; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 China
| | - Leyong Wang
- Key Laboratory of Mesoscopic Chemistry of MOE; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 China
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Ronson TK, Roberts DA, Black SP, Nitschke JR. Stacking Interactions Drive Selective Self-Assembly and Self-Sorting of Pyrene-Based M(II)4L6 Architectures. J Am Chem Soc 2015; 137:14502-12. [PMID: 26509841 DOI: 10.1021/jacs.5b09920] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Subcomponent self-assembly of two isomeric bis(3-aminophenyl)pyrenes, 2-formylpyridine and the metal ions Fe(II), Co(II), and Zn(II) led to the formation of two previously unidentified structure types: a C2-symmetric M(II)4L6 assembly with meridionally coordinated metal centers, and a C3-symmetric self-included M(II)4L6 assembly with facially coordinated metal centers. In both structures the meta linkages within the ligands facilitate π-stacking between the pyrene panels of the ligands. A C2h-symmetric M(II)2L2 box was also obtained, which was observed to selectively bind electron-deficient aromatic guests between two parallel pyrene subunits. Similar donor-acceptor interactions drove the selective self-assembly of a singular M(II)4L4L'2 architecture incorporating both a pyrene-containing diamine and an electron-deficient NDI-based diamine. This heteroleptic architecture was shown to be thermodynamically favored over the corresponding homoleptic M(II)4L6 and M(II)4L'6 complexes, which were nonetheless stable in each others' absence. By contrast, an isomeric pyrene-based diamine was observed to undergo narcissistic self-sorting in the presence of the NDI-based diamine.
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Affiliation(s)
- Tanya K Ronson
- Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge, CB2 1EW, U.K
| | - Derrick A Roberts
- Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge, CB2 1EW, U.K
| | - Samuel P Black
- Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge, CB2 1EW, U.K
| | - Jonathan R Nitschke
- Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge, CB2 1EW, U.K
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Coutrot F. A Focus on Triazolium as a Multipurpose Molecular Station for pH-Sensitive Interlocked Crown-Ether-Based Molecular Machines. ChemistryOpen 2015; 4:556-76. [PMID: 26491633 PMCID: PMC4608521 DOI: 10.1002/open.201500088] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Indexed: 12/19/2022] Open
Abstract
The control of motion of one element with respect to others in an interlocked architecture allows for different co-conformational states of a molecule. This can result in variations of physical or chemical properties. The increase of knowledge in the field of molecular interactions led to the design, the synthesis, and the study of various systems of molecular machinery in a wide range of interlocked architectures. In this field, the discovery of new molecular stations for macrocycles is an attractive way to conceive original molecular machines. In the very recent past, the triazolium moiety proved to interact with crown ethers in interlocked molecules, so that it could be used as an ideal molecular station. It also served as a molecular barrier in order to lock interlaced structures or to compartmentalize interlocked molecular machines. This review describes the recently reported examples of pH-sensitive triazolium-containing molecular machines and their peculiar features.
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Affiliation(s)
- Frédéric Coutrot
- Supramolecular Machines and Architectures Team, Institut des Biomolécules Max Mousseron (IBMM), UMR 5247 Cnrs, Faculté des Sciences, Université Montpellier, ENSCMBâtiment Chimie (17), 3ème étage, Place Eugène Bataillon, case courrier 1706, 34095, Montpellier cedex 5, France
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46
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Niess F, Duplan V, Diercks CS, Sauvage JP. Contractile and extensible molecular figures-of-eight. Chemistry 2015; 21:14393-400. [PMID: 26332007 DOI: 10.1002/chem.201502216] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Indexed: 12/25/2022]
Abstract
Two large rings, 66- (m-66) and 78-membered (m-78) rings, each one incorporating two pairs of transition-metal-complexing units, have been prepared. The coordinating fragments are alternating bi- and tridentate chelating groups, namely, 2,9-diphenyl-1,10-phenanthroline (dpp) and 2,2',2',6''-terpyridine (terpy) respectively. Both macrocycles form molecular figures-of-eight in the presence of Fe(II) , affording a classical bis-terpy complex as the central core. The larger m-78 ring can accommodate a four-coordinate Cu(I) center with the formation of a {Cu(dpp)2 }(+) central complex and a highly twisted figure-of-eight backbone, whereas m-66 is too small to coordinate Cu(I) . Macrocycle m-78 thus affords stable complexes with both Fe(II) and Cu(I) ; the ligand around the metal changes from (terpy)2 to (dpp)2 . This bimodal coordination situation allows for a large amplitude rearrangement of the organic backbone. When coordinated to preferentially octahedrally coordinated Fe(II) or Cu(II) , the height of the molecule along the coordinating axis of the tridentate terpy ligands is only about 11 Å, whereas the height of the molecule along the same vertical axis is several times as large for the tetrahedral Cu(I) complex. Chemically or electrochemically driven contraction and extension motions along a defined axis make this figure-of-eight particularly promising as a new class of molecular machine prototype for use as a constitutive element in muscle-like dynamic systems.
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Affiliation(s)
- Frédéric Niess
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), Université de Strasbourg et CNRS, 8 allée Gaspard Monge, 67000 Strasbourg (France)
| | - Vincent Duplan
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), Université de Strasbourg et CNRS, 8 allée Gaspard Monge, 67000 Strasbourg (France)
| | - Christian S Diercks
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), Université de Strasbourg et CNRS, 8 allée Gaspard Monge, 67000 Strasbourg (France)
| | - Jean-Pierre Sauvage
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), Université de Strasbourg et CNRS, 8 allée Gaspard Monge, 67000 Strasbourg (France).
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47
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Abendroth JM, Bushuyev OS, Weiss PS, Barrett CJ. Controlling Motion at the Nanoscale: Rise of the Molecular Machines. ACS NANO 2015; 9:7746-68. [PMID: 26172380 DOI: 10.1021/acsnano.5b03367] [Citation(s) in RCA: 304] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
As our understanding and control of intra- and intermolecular interactions evolve, ever more complex molecular systems are synthesized and assembled that are capable of performing work or completing sophisticated tasks at the molecular scale. Commonly referred to as molecular machines, these dynamic systems comprise an astonishingly diverse class of motifs and are designed to respond to a plethora of actuation stimuli. In this Review, we outline the conditions that distinguish simple switches and rotors from machines and draw from a variety of fields to highlight some of the most exciting recent examples of opportunities for driven molecular mechanics. Emphasis is placed on the need for controllable and hierarchical assembly of these molecular components to display measurable effects at the micro-, meso-, and macroscales. As in Nature, this strategy will lead to dramatic amplification of the work performed via the collective action of many machines organized in linear chains, on functionalized surfaces, or in three-dimensional assemblies.
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Affiliation(s)
- John M Abendroth
- California NanoSystems Institute and Department of Chemistry & Biochemistry, University of California , Los Angeles, Los Angeles, California 90095, United States
| | | | - Paul S Weiss
- California NanoSystems Institute and Department of Chemistry & Biochemistry, University of California , Los Angeles, Los Angeles, California 90095, United States
- Department of Materials Science & Engineering, University of California , Los Angeles, Los Angeles, California 90095, United States
| | - Christopher J Barrett
- California NanoSystems Institute and Department of Chemistry & Biochemistry, University of California , Los Angeles, Los Angeles, California 90095, United States
- Department of Chemistry, McGill University , Montreal, QC, Canada
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48
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Vukotic VN, O’Keefe CA, Zhu K, Harris KJ, To C, Schurko RW, Loeb SJ. Mechanically Interlocked Linkers inside Metal–Organic Frameworks: Effect of Ring Size on Rotational Dynamics. J Am Chem Soc 2015; 137:9643-51. [DOI: 10.1021/jacs.5b04674] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- V. Nicholas Vukotic
- Department of Chemistry and
Biochemistry, University of Windsor, Windsor, Ontario, Canada N9B 3P4
| | - Christopher A. O’Keefe
- Department of Chemistry and
Biochemistry, University of Windsor, Windsor, Ontario, Canada N9B 3P4
| | - Kelong Zhu
- Department of Chemistry and
Biochemistry, University of Windsor, Windsor, Ontario, Canada N9B 3P4
| | - Kristopher J. Harris
- Department of Chemistry and
Biochemistry, University of Windsor, Windsor, Ontario, Canada N9B 3P4
| | - Christine To
- Department of Chemistry and
Biochemistry, University of Windsor, Windsor, Ontario, Canada N9B 3P4
| | - Robert W. Schurko
- Department of Chemistry and
Biochemistry, University of Windsor, Windsor, Ontario, Canada N9B 3P4
| | - Stephen J. Loeb
- Department of Chemistry and
Biochemistry, University of Windsor, Windsor, Ontario, Canada N9B 3P4
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49
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Li SH, Zhang HY, Xu X, Liu Y. Mechanically selflocked chiral gemini-catenanes. Nat Commun 2015; 6:7590. [PMID: 26126502 PMCID: PMC4506498 DOI: 10.1038/ncomms8590] [Citation(s) in RCA: 145] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Accepted: 05/22/2015] [Indexed: 12/22/2022] Open
Abstract
Mechanically interlocked and entangled molecular architectures represent one of the elaborate topological superstructures engineered at a molecular resolution. Here we report a methodology for fabricating mechanically selflocked molecules (MSMs) through highly efficient one-step amidation of a pseudorotaxane derived from dual functionalized pillar[5]arene (P[5]A) threaded by α,ω-diaminoalkane (DA-n; n=3-12). The monomeric and dimeric pseudo[1]catenanes thus obtained, which are inherently chiral due to the topology of P[5]A used, were isolated and fully characterized by NMR and circular dichroism spectroscopy, X-ray crystallography and DFT calculations. Of particular interest, the dimeric pseudo[1]catenane, named 'gemini-catenane', contained stereoisomeric meso-erythro and dl-threo isomers, in which two P[5]A moieties are threaded by two DA-n chains in topologically different patterns. This access to chiral pseudo[1]catenanes and gemini-catenanes will greatly promote the practical use of such sophisticated chiral architectures in supramolecular and materials science and technology.
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Affiliation(s)
- Sheng-Hua Li
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Heng-Yi Zhang
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Xiufang Xu
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Yu Liu
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
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50
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Prentice GM, Pascu SI, Filip SV, West KR, Pantoş GD. Aromatic donor-acceptor interactions in non-polar environments. Chem Commun (Camb) 2015; 51:8265-8. [PMID: 25875729 DOI: 10.1039/c5cc00507h] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have evaluated the strength of aromatic donor-acceptor interactions between dialkyl naphthalenediimide and dialkoxynaphthalene in non-polar environments. (1)H NMR, UV-vis spectroscopy and isothermal titration calorimetry were used to characterise this interaction. We concluded that the strength of donor-acceptor interactions in heptane is sufficient to drive supramolecular assemblies in this and other aliphatic solvents.
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Affiliation(s)
- Giles M Prentice
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK.
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