101
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Aparicio F, Chamorro PB, Chamorro R, Casado S, González‐Rodríguez D. Nanostructured Micelle Nanotubes Self‐Assembled from Dinucleobase Monomers in Water. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006877] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Fátima Aparicio
- Nanostructured Molecular Systems and Materials (MSMn) Group Departamento de Química Orgánica Facultad de Ciencias Universidad Autónoma de Madrid 28049 Madrid Spain
| | - Paula B. Chamorro
- Nanostructured Molecular Systems and Materials (MSMn) Group Departamento de Química Orgánica Facultad de Ciencias Universidad Autónoma de Madrid 28049 Madrid Spain
| | - Raquel Chamorro
- Nanostructured Molecular Systems and Materials (MSMn) Group Departamento de Química Orgánica Facultad de Ciencias Universidad Autónoma de Madrid 28049 Madrid Spain
| | - Santiago Casado
- IMDEA Nanociencia c/ Faraday 9, Campus de Cantoblanco 28049 Madrid Spain
| | - David González‐Rodríguez
- Nanostructured Molecular Systems and Materials (MSMn) Group Departamento de Química Orgánica Facultad de Ciencias Universidad Autónoma de Madrid 28049 Madrid Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem) Universidad Autónoma de Madrid 28049 Madrid Spain
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102
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Escobar L, Li YS, Cohen Y, Yu Y, Rebek J, Ballester P. Kinetic Stabilities and Exchange Dynamics of Water-Soluble Bis-Formamide Caviplexes Studied Using Diffusion-Ordered NMR Spectroscopy (DOSY). Chemistry 2020; 26:8220-8225. [PMID: 32167599 DOI: 10.1002/chem.202000781] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Indexed: 11/10/2022]
Abstract
A deep cavitand binds long-chain trans,trans- and trans,cis-bis-formamide isomers in water solution giving a pair of caviplexes in a ca. 60:40 ratio. Both caviplexes display in/out guest exchange dynamics that are slow on the 1 H NMR chemical shift timescale, but fast on the EXSY timescale. We apply diffusion-ordered NMR spectroscopy (DOSY) to characterize the caviplexes. On the diffusion timescale, the guest in/out exchange processes feature intermediate dynamics allowing the assessment of their kinetic stabilities. We found that the trans,cis-bis-formamide isomers form kinetically more stable caviplexes than the trans,trans-counterparts. We also show that the kinetic stabilities of the bis-formamide caviplexes relate well with their relative thermodynamic stabilities. Fortunately, the tuning of the DOSY parameters allowed the observation of the exchange dynamics as slow processes on the experiment timescale.
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Affiliation(s)
- Luis Escobar
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007, Tarragona, Spain.,Universitat Rovira i Virgili (URV), Departament de Química Analítica i Química Orgánica, c/Marcel lí Domingo 1, 43007, Tarragona, Spain
| | - Yong-Sheng Li
- Shanghai University, Center for Supramolecular Chemistry and Catalysis, Shang-Da Road 99, 200444, Shanghai, China.,Shanghai University, Department of Chemistry, College of Science, Shang-Da Road 99, 200444, Shanghai, China
| | - Yoram Cohen
- Tel Aviv University, School of Chemistry, The Sacker Faculty of Exact Sciences, Ramat Aviv, 69978, Tel Aviv, Israel
| | - Yang Yu
- Shanghai University, Center for Supramolecular Chemistry and Catalysis, Shang-Da Road 99, 200444, Shanghai, China.,Shanghai University, Department of Chemistry, College of Science, Shang-Da Road 99, 200444, Shanghai, China
| | - Julius Rebek
- Shanghai University, Center for Supramolecular Chemistry and Catalysis, Shang-Da Road 99, 200444, Shanghai, China.,Shanghai University, Department of Chemistry, College of Science, Shang-Da Road 99, 200444, Shanghai, China.,The Scripps Research Institute, Skaggs Institute for Chemical Biology, North Torrey Pines Road 10550, 92037, La Jolla, CA, USA.,The Scripps Research Institute, Department of Chemistry, North Torrey Pines Road 10550, 92037, La Jolla, CA, USA
| | - Pablo Ballester
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007, Tarragona, Spain.,Catalan Institution for Research and Advanced Studies (ICREA), Passeig Lluís Companys 23, 08010, Barcelona, Spain
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103
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Ong WSY, Smaldone RA, Dodani SC. A neutral porous organic polymer host for the recognition of anionic dyes in water. Chem Sci 2020; 11:7716-7721. [PMID: 34094147 PMCID: PMC8159435 DOI: 10.1039/d0sc02941f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 06/19/2020] [Indexed: 11/21/2022] Open
Abstract
Neutral hosts for the recognition of anionic guests in water remain underdeveloped due to the inherent thermodynamic barrier for desolvation. To address this challenge, we have repurposed crosslinked porous organic polymers (POPs) as hosts. This polymer architecture affords a hydrophobic environment with a densely packed array of urea hydrogen bond donors to cooperatively promote anion desolvation and recognition in water. Using the principles of supramolecular design, we demonstrate through adsorption assays that the resulting Urea-POP-1 can recognize structurally different dyes containing phosphonate, sulfonate, and carboxylate anions in water. Moreover, when compared to Methyl-POP-1, a control POP lacking hydrogen bond donors, we find that the driving force for desolvation and adsorption of each dye is achieved through hydrophobic interactions with the POP backbone and, more importantly, cooperative hydrogen bonding interactions with the urea sidechains. This starting point sets the stage to exploit the modularity of our design to build a family of neutral polymer hosts with tunable pore sizes and anion preferences for fundamental investigations and targeted applications.
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Affiliation(s)
- Whitney S Y Ong
- Department of Chemistry and Biochemistry, The University of Texas at Dallas 800 West Campbell Road Richardson TX 75080 USA
| | - Ronald A Smaldone
- Department of Chemistry and Biochemistry, The University of Texas at Dallas 800 West Campbell Road Richardson TX 75080 USA
| | - Sheel C Dodani
- Department of Chemistry and Biochemistry, The University of Texas at Dallas 800 West Campbell Road Richardson TX 75080 USA
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104
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Ito K, Nishioka T, Akita M, Kuzume A, Yamamoto K, Yoshizawa M. An aromatic micelle with bent pentacene-based panels: encapsulation of perylene bisimide dyes and graphene nanosheets. Chem Sci 2020; 11:6752-6757. [PMID: 32953033 PMCID: PMC7472825 DOI: 10.1039/d0sc01748e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 06/04/2020] [Indexed: 12/15/2022] Open
Abstract
We herein report the quantitative formation of a new aromatic micelle from bent pentacene-based amphiphiles in water. Upon encapsulation, perylene bisimide dyes form a parallel stacked dimer and graphene nanosheets comprise few layer sheets with small lateral size.
For exploitation of a new class of aromatic micelles, we synthesized a bent pentacene-based amphiphilic molecule through Diels–Alder reaction. The amphiphiles bearing two trimethylammonium tethers assemble into a spherical aromatic micelle, with an average core diameter of 1.5 nm, in water at room temperature. The new aromatic micelle efficiently encapsulates perylene bisimide (PBI) dyes and graphene nanosheets (GNS) in water. The encapsulated PBI dyes form a parallel stacked dimer, exhibiting characteristic absorption and emission bands. In addition, the encapsulated GNS are composed of few-layer graphene sheets with an average lateral size of ∼7 nm, as confirmed by Raman spectroscopy. The resultant, aqueous host–guest complexes are stable even after three weeks in water under ambient conditions.
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Affiliation(s)
- Kenta Ito
- Laboratory for Chemistry and Life Science , Institute of Innovative Research , Tokyo Institute of Technology , 4259 Nagatsuta, Midori-ku , Yokohama 226-8503 , Japan .
| | - Tomoya Nishioka
- Laboratory for Chemistry and Life Science , Institute of Innovative Research , Tokyo Institute of Technology , 4259 Nagatsuta, Midori-ku , Yokohama 226-8503 , Japan .
| | - Munetaka Akita
- Laboratory for Chemistry and Life Science , Institute of Innovative Research , Tokyo Institute of Technology , 4259 Nagatsuta, Midori-ku , Yokohama 226-8503 , Japan .
| | - Akiyoshi Kuzume
- Laboratory for Chemistry and Life Science , Institute of Innovative Research , Tokyo Institute of Technology , 4259 Nagatsuta, Midori-ku , Yokohama 226-8503 , Japan .
| | - Kimihisa Yamamoto
- Laboratory for Chemistry and Life Science , Institute of Innovative Research , Tokyo Institute of Technology , 4259 Nagatsuta, Midori-ku , Yokohama 226-8503 , Japan .
| | - Michito Yoshizawa
- Laboratory for Chemistry and Life Science , Institute of Innovative Research , Tokyo Institute of Technology , 4259 Nagatsuta, Midori-ku , Yokohama 226-8503 , Japan .
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105
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Chen S, Leung FKC, Stuart MCA, Wang C, Feringa BL. Dynamic Assemblies of Molecular Motor Amphiphiles Control Macroscopic Foam Properties. J Am Chem Soc 2020; 142:10163-10172. [PMID: 32379449 PMCID: PMC7273467 DOI: 10.1021/jacs.0c03153] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Indexed: 11/30/2022]
Abstract
Stimuli-responsive supramolecular assemblies controlling macroscopic transformations with high structural fluidity, i.e., foam properties, have attractive prospects for applications in soft materials ranging from biomedical systems to industrial processes, e.g., textile coloring. However, identifying the key processes for the amplification of molecular motion to a macroscopic level response is of fundamental importance for exerting the full potential of macroscopic structural transformations by external stimuli. Herein, we demonstrate the control of dynamic supramolecular assemblies in aqueous media and as a consequence their macroscopic foam properties, e.g., foamability and foam stability, by large geometrical transformations of dual light/heat stimuli-responsive molecular motor amphiphiles. Detailed insight into the reversible photoisomerization and thermal helix inversion at the molecular level, supramolecular assembly transformations at the microscopic level, and the stimuli-responsive foam properties at the macroscopic level, as determined by UV-vis absorption and NMR spectroscopies, electron microscopy, and foamability and in situ surface tension measurements, is presented. By selective use of external stimuli, e.g., light or heat, multiple states and properties of macroscopic foams can be controlled with very dilute aqueous solutions of the motor amphiphiles (0.2 weight%), demonstrating the potential of multiple stimuli-responsive supramolecular systems based on an identical molecular amphiphile and providing opportunities for future soft materials.
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Affiliation(s)
- Shaoyu Chen
- Center
for System Chemistry, Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
- Key
Laboratory of Eco-Textile, Ministry of Education, College of Textiles
Science and Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, People’s
Republic of China
| | - Franco King-Chi Leung
- Center
for System Chemistry, Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
| | - Marc C. A. Stuart
- Center
for System Chemistry, Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
| | - Chaoxia Wang
- Key
Laboratory of Eco-Textile, Ministry of Education, College of Textiles
Science and Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, People’s
Republic of China
| | - Ben L. Feringa
- Center
for System Chemistry, Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
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106
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Sun J, Gui Y, Huang Y, Li J, Zha Z, Yang Y, Wang Z. Lewis Acid-Catalyzed Enantioselective Friedel-Crafts Alkylation of Pyrrole in Water. ACS OMEGA 2020; 5:11962-11970. [PMID: 32548375 PMCID: PMC7271029 DOI: 10.1021/acsomega.9b04115] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 03/25/2020] [Indexed: 05/08/2023]
Abstract
Highly enantioselective Friedel-Crafts alkylation of pyrroles with 2-enoyl-pyridine N-oxides in water/chloroform (10:1) was developed under catalysis of Lewis acid. The Friedel-Crafts alkylation products can be obtained in high yields and excellent enantioselectivities. Moreover, several control experiments were carried out to study the reaction mechanism.
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Affiliation(s)
- Jianan Sun
- Hefei
National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory
of Soft Matter Chemistry and Department of Chemistry & Collaborative
Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Yang Gui
- Hefei
National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory
of Soft Matter Chemistry and Department of Chemistry & Collaborative
Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Yekai Huang
- Hefei
National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory
of Soft Matter Chemistry and Department of Chemistry & Collaborative
Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Jindong Li
- Hefei
National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory
of Soft Matter Chemistry and Department of Chemistry & Collaborative
Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Zhenggen Zha
- Hefei
National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory
of Soft Matter Chemistry and Department of Chemistry & Collaborative
Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Yu Yang
- School
of Chemistry and Chemical Engineering, Hefei
Normal University, Hefei, Anhui 230601, P. R. China
| | - Zhiyong Wang
- Hefei
National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory
of Soft Matter Chemistry and Department of Chemistry & Collaborative
Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
- . Fax: 86-551-3631760
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107
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Furutachi M, Ota K, Fujisaki F, Ikeda R, Yoshikawa N, Yokota T, Takeda Y, Yokomizo K, Zhou JR, Kashige N, Miake F, Sumoto K. Anti-proliferative Activities of Some Bivalent Symmetrical 5-Substituted Hydantoin Derivatives towards Human Brain Glioma U251 Cells (U251) and Human Carcinoma Cells (KB3-1). Biol Pharm Bull 2020; 42:1953-1956. [PMID: 31685778 DOI: 10.1248/bpb.b19-00486] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Novel bivalent twin-drug type hydantoin derivatives were evaluated in vitro using a human brain glioma cell line (U251) and a human carcinoma cell line (KB3-1). Among the 5-substituted hydantoin derivatives (1a-b and 2a-d) examined in this study, bivalent symmetrical 5-substituted hydantoin derivative 1b showed the highest anti-proliferative activity towards both U251 and KB3-1 cells. The values of anti-proliferative activity (IC50) of this hydantoin derivative against the two cell lines (U251 and KB3-1) were 0.46 and 5.21 µM, respectively. The anti-proliferative activity of all of the compounds except for compounds 2a and 2d against U251 cells was higher than that of cisplatin. Bivalent symmetrical compound 1b had a biphenylmethane linker in the molecule. All of the tested bivalent hydantoin derivatives showed higher activity against U251 cells than against KB3-1 cells. For twin-drug type hydantoin derivatives 2a-d, which have a linear methylene linker in the molecules, it was found that methylene linker length in these molecules have an effect on the anti-proliferative activity against U251 and KB3-1 cells.
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Affiliation(s)
| | - Kaori Ota
- Faculty of Pharmaceutical Sciences, Fukuoka University
| | | | - Ryuji Ikeda
- Department of Pharmacy, University of Miyazaki Hospital
| | | | | | | | | | | | | | - Fumio Miake
- Faculty of Pharmaceutical Sciences, Fukuoka University
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108
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Howlader P, Zangrando E, Mukherjee PS. Self-Assembly of Enantiopure Pd12 Tetrahedral Homochiral Nanocages with Tetrazole Linkers and Chiral Recognition. J Am Chem Soc 2020; 142:9070-9078. [DOI: 10.1021/jacs.0c03551] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Prodip Howlader
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Ennio Zangrando
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste 34127, Italy
| | - Partha Sarathi Mukherjee
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
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109
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Abstract
The combination of supramolecular functional systems with biomolecular chemistry has been a fruitful exercise for decades, leading to a greater understanding of biomolecules and to a great variety of applications, for example, in drug delivery and sensing. Within these developments, the phospholipid bilayer membrane, surrounding live cells, with all its functions has also intrigued supramolecular chemists. Herein, recent efforts from the supramolecular chemistry community to mimic natural functions of lipid membranes, such as sensing, molecular recognition, membrane fusion, signal transduction, and gated transport, are reviewed.
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Affiliation(s)
- Andrea Barba‐Bon
- Department of Life Sciences and ChemistryJacobs University BremenCampus Ring 128759BremenGermany
| | - Mohamed Nilam
- Department of Life Sciences and ChemistryJacobs University BremenCampus Ring 128759BremenGermany
| | - Andreas Hennig
- Department of Life Sciences and ChemistryJacobs University BremenCampus Ring 128759BremenGermany
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110
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Peng S, He Q, Vargas-Zúñiga GI, Qin L, Hwang I, Kim SK, Heo NJ, Lee CH, Dutta R, Sessler JL. Strapped calix[4]pyrroles: from syntheses to applications. Chem Soc Rev 2020; 49:865-907. [PMID: 31957756 DOI: 10.1039/c9cs00528e] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Supramolecular chemistry is a central topic in modern chemistry. It touches on many traditional disciplines, such as organic chemistry, inorganic chemistry, physical chemistry, materials chemistry, environmental chemistry, and biological chemistry. Supramolecular hosts, inter alia macrocyclic hosts, play critical roles in supramolecular chemistry. Calix[4]pyrroles, non-aromatic tetrapyrrolic macrocycles defined by sp3 hybridized meso bridges, have proved to be versatile receptors for neutral species, anions, and cations, as well as ion pairs. Compared to the parent system, octamethylcalix[4]pyrrole and its derivatives bearing simple appended functionalities, strapped calix[4]pyrroles typically display enhanced binding affinities and selectivities. In this review, we summarize advances in the design and synthesis of strapped calix[4]pyrroles, as well as their broad utility in molecular recognition, supramolecular extraction, separation technology, ion transport, and as agents capable of inhibiting cancer cell proliferation. Future challenges within this sub-field are also discussed.
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Affiliation(s)
- Sangshan Peng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China.
| | - Qing He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China.
| | - Gabriela I Vargas-Zúñiga
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas 78712, USA.
| | - Lei Qin
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas 78712, USA.
| | - Inhong Hwang
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas 78712, USA.
| | - Sung Kuk Kim
- Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju 660-701, Korea.
| | - Nam Jung Heo
- Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju 660-701, Korea.
| | - Chang-Hee Lee
- Department of Chemistry, Kangwon National University and IMSFT, Chun-Cheon 24341, Korea.
| | - Ranjan Dutta
- Department of Chemistry, Kangwon National University and IMSFT, Chun-Cheon 24341, Korea.
| | - Jonathan L Sessler
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas 78712, USA. and Center for Supramolecular Chemistry and Catalysis, Shanghai University, Shanghai 200444, P. R. China
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111
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García-Iglesias M, Mayoral MJ, Serrano-Molina D, Aparicio F, Vázquez-González V, González-Rodríguez D. Self-Assembly of Diacetylene-Bridged Phenylenevinylene Oligomers in Water and Organic Solvents. Chempluschem 2020; 84:488-492. [PMID: 31943897 DOI: 10.1002/cplu.201900207] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 04/23/2019] [Indexed: 11/06/2022]
Abstract
Rodlike π-conjugated molecules in which two OPV fragments are connected through a diacetylene bond self-assemble in aqueous and organic media. Optical spectroscopy and AFM measurements indicated that, in water, strong hydrophobic interactions between π-cores promote aggregation into robust, uniform micellar structures. In contrast, in apolar solvents, a fibrilar morphology is obtained by coiling of columnar stacks. These stacks are formed in a nucleation-elongation process with degrees of cooperativity of 0.006, that is influenced by the low rotation barriers around the σ-bonds in the diacetylene linker.
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Affiliation(s)
- Miguel García-Iglesias
- Departamento de Química Orgánica Facultad de Ciencias, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - María José Mayoral
- Departamento de Química Orgánica Facultad de Ciencias, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - David Serrano-Molina
- Departamento de Química Orgánica Facultad de Ciencias, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Fátima Aparicio
- Departamento de Química Orgánica Facultad de Ciencias, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Violeta Vázquez-González
- Departamento de Química Orgánica Facultad de Ciencias, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - David González-Rodríguez
- Departamento de Química Orgánica Facultad de Ciencias, Universidad Autónoma de Madrid, 28049, Madrid, Spain.,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049, Madrid, Spain
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112
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Wang Q, Zhong Y, Miller DP, Lu X, Tang Q, Lu ZL, Zurek E, Liu R, Gong B. Self-Assembly and Molecular Recognition in Water: Tubular Stacking and Guest-Templated Discrete Assembly of Water-Soluble, Shape-Persistent Macrocycles. J Am Chem Soc 2020; 142:2915-2924. [PMID: 31895977 DOI: 10.1021/jacs.9b11536] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Supramolecular chemistry in aqueous media is an area with great fundamental and practical significance. To examine the role of multiple noncovalent interactions in controlled assembling and binding behavior in water, the self-association of five water-soluble hexakis(m-phenylene ethynylene) (m-PE) macrocycles, along with the molecular recognition behavior of the resultant assemblies, is investigated with UV-vis, fluorescence, CD, and NMR spectroscopy, mass spectrometry, and computational studies. In contrast to their different extents of self-aggregation in organic solvents, all five macrocycles remain aggregated in water at concentrations down to the micromolar (μM) range. CD spectroscopy reveals that 1-F6 and 1-H6, two macrocycles carrying chiral side chains and capable of H-bonded self-association, assemble into tubular stacks. The tubular stacks serve as supramolecular hosts in water, as exemplified by the interaction of macrocycles 1-H6 and 2-H6 and guests G1 through G4, each having a rod-like oligo(p-phenylene ethynylene) (p-PE) segment flanked by two hydrophilic chains. Fluorescence and 1H NMR spectroscopy revealed the formation of kinetically stable, discrete assemblies upon mixing 2-H6 and a guest. The binding stoichiometry, determined with fluorescence, 1H NMR, and ESI-MS, reveals that the discrete assemblies are novel pseudorotaxanes, each containing a pair of identical guest molecules encased by a tubular stack. The two guest molecules define the number of macrocyclic molecules that comprise the host, which curbs the "infinite" stack growth, resulting in a tubular stack with a cylindrical pore tailoring the length of the p-PE segment of the bound guests. Each complex is stabilized by the action of multiple noncovalent forces including aromatic stacking, side-chain H-bonding, and van der Waals interactions. Thus, the interplay of multiple noncovalent forces aligns the molecules of macrocycles 1 and 2 into tubular stacks with cylindrical inner pores that, upon binding rod-like guests, lead to tight, discrete, and well-ordered tubular assemblies that are unprecedented in water.
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Affiliation(s)
- Qiuhua Wang
- College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Yulong Zhong
- Department of Chemistry , University at Buffalo, The State University of New York , Buffalo , New York 14260 , United States
| | - Daniel P Miller
- Department of Chemistry , Hofstra University , Hempstead , New York 11549 , United States
| | - Xiaoxing Lu
- College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Quan Tang
- College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Zhong-Lin Lu
- College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Eva Zurek
- Department of Chemistry , University at Buffalo, The State University of New York , Buffalo , New York 14260 , United States
| | - Rui Liu
- College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Bing Gong
- Department of Chemistry , University at Buffalo, The State University of New York , Buffalo , New York 14260 , United States
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113
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Chakraborty G, Ray AK, Singh PK, Pal H. Does the degree of substitution on the cyclodextrin hosts impact their affinity towards guest binding? Photochem Photobiol Sci 2020; 19:956-965. [DOI: 10.1039/d0pp00103a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The degree of substitution on βCD rims by sulfobutylether groups significantly modulates the binding affinity of the SBEnβCD hosts for the studied cationic guest molecule.
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Affiliation(s)
- Goutam Chakraborty
- Laser and Plasma Technology Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - Alok K. Ray
- Laser and Plasma Technology Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
- Homi Bhabha National Institute
| | - Prabhat K. Singh
- Homi Bhabha National Institute
- Mumbai-400094
- India
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
| | - Haridas Pal
- Homi Bhabha National Institute
- Mumbai-400094
- India
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
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114
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Xu W, Deng X, Xiao X, Bian B, Chen Q, Dalgarno SJ, Tao Z, Redshaw C. Supramolecular assemblies controlled by cucurbit[ n]uril size ( n = 6, 7, 8 and 10). NEW J CHEM 2020. [DOI: 10.1039/d0nj00087f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The differing cavity size of the Q[n] determines the binding interactions between the benzyl substituted 4-pyrrolidinopyridinium salt and each Q[n]. Single crystal X-ray diffraction of the guest as well as two host–guest complexes is reported.
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Affiliation(s)
- Weitao Xu
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province
- Guizhou University
- Guiyang 550025
- China
| | - Xinyu Deng
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province
- Guizhou University
- Guiyang 550025
- China
| | - Xin Xiao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province
- Guizhou University
- Guiyang 550025
- China
| | - Bing Bian
- College of Chemical and Environmental Engineering
- Shandong University of Science and Technology
- Qingdao 266590
- P. R. China
| | - Qing Chen
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province
- Guizhou University
- Guiyang 550025
- China
| | - Scott J. Dalgarno
- Institute of Chemical Sciences
- School of Engineering and Physical Sciences
- Heriot-Watt University
- Edinburgh EH14 4AS
- UK
| | - Zhu Tao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province
- Guizhou University
- Guiyang 550025
- China
| | - Carl Redshaw
- Department of Chemistry and Biochemistry
- University of Hull
- Hull HU6 7RX
- UK
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115
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Two acetylenedicarboxylato-bridged 4-styrylpyridine appended 1D coordination polymers: synthesis, structural characterization and variable temperature magnetism. J CHEM SCI 2019. [DOI: 10.1007/s12039-019-1698-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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116
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Jadhav AL, Yadav GD. A Green Process for Selective Hydrolysis of Cinnamaldehyde in Water to Natural Benzaldehyde by Using Ti and Zn Modified Hydrotalcites as Catalysts. CURRENT GREEN CHEMISTRY 2019. [DOI: 10.2174/2213346106666191021105244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Hydrolysis of Cinnamaldehyde (CNM) is one of the important processes for the production
of industrially essential natural benzaldehyde. Benzaldehyde is a vital precursor in the production of
perfumes, cosmetics, food, beverages, and pharmaceutical intermediates. As homogeneous base catalysts
are polluting and difficult to separate, heterogeneous catalysts should be used. Hydrolysis of cinnamaldehyde
to benzaldehyde was studied over modified hydrotalcite (HT) base catalysts wherein HT
was activated with either zinc or titanium, by combustion synthesis using glycine or glycerol as fuel.
Both the catalyst composition and combustion fuel affect the activity of modified HT catalysts. SEM,
EDXS, BET surface area and porosimetry were used to characterize all catalysts. Zinc modified hydrotalcite
using glycine as fuel (Zn-HT-Glycine) was the most active, selective, and reusable catalyst
under mild reaction conditions, and it was used to study the influence of different process parameters
on the reaction rate, conversion and selectivity. Reaction mechanism and kinetics were established.
The reaction follows pseudo-first-order kinetics. At 1:92 mole ratio of cinnamaldehyde to water and
0.005 g/cm3 catalyst loading, the reaction gives 75.8 % conversion of cinnamaldehyde and 100 % selectivity
to benzaldehyde at 130oC in 4 h. The apparent activation energy was 19.15 kcal/mol. The
overall process is green and the catalyst reusable.
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Affiliation(s)
- Amarsinh L. Jadhav
- Department of Chemical Engineering, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai - 400 019, India
| | - Ganapati D. Yadav
- Department of Chemical Engineering, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai - 400 019, India
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117
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Conjugated Polymer Nanogel Binding Anticancer Drug through Hydrogen Bonds for Sustainable Drug Delivery. ACS APPLIED BIO MATERIALS 2019; 2:6012-6020. [DOI: 10.1021/acsabm.9b00941] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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118
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Binding interactions of bisbenzimidazolyl derivatives with cyclohexanocucurbit[6]uril. J INCL PHENOM MACRO 2019. [DOI: 10.1007/s10847-019-00957-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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119
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Neira I, Blanco-Gómez A, Quintela JM, Peinador C, García MD. Adjusting the Dynamism of Covalent Imine Chemistry in the Aqueous Synthesis of Cucurbit[7]uril-based [2]Rotaxanes. Org Lett 2019; 21:8976-8980. [DOI: 10.1021/acs.orglett.9b03377] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Iago Neira
- Departamento de Química and Centro de Investigaciones Científicas Avanzadas (CICA), Facultad de Ciencias, Universidade da Coruña, E-15071 A Coruña, Spain
| | - Arturo Blanco-Gómez
- Departamento de Química and Centro de Investigaciones Científicas Avanzadas (CICA), Facultad de Ciencias, Universidade da Coruña, E-15071 A Coruña, Spain
| | - José M. Quintela
- Departamento de Química and Centro de Investigaciones Científicas Avanzadas (CICA), Facultad de Ciencias, Universidade da Coruña, E-15071 A Coruña, Spain
| | - Carlos Peinador
- Departamento de Química and Centro de Investigaciones Científicas Avanzadas (CICA), Facultad de Ciencias, Universidade da Coruña, E-15071 A Coruña, Spain
| | - Marcos D. García
- Departamento de Química and Centro de Investigaciones Científicas Avanzadas (CICA), Facultad de Ciencias, Universidade da Coruña, E-15071 A Coruña, Spain
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120
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Jing B, Ferreira M, Gao Y, Wood C, Li R, Fukuto M, Liu T, Zhu Y. Unconventional Complex Coacervation between Neutral Polymer and Inorganic Polyoxometalate in Aqueous Solution via Direct Water Mediation. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01091] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Benxin Jing
- Department of Chemical Engineering and Materials Science, Wayne State University, Detroit, Michigan 48202, United States
| | - Manuela Ferreira
- Department of Chemical Engineering and Materials Science, Wayne State University, Detroit, Michigan 48202, United States
| | - Yunyi Gao
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Christopher Wood
- Department of Chemical Engineering and Materials Science, Wayne State University, Detroit, Michigan 48202, United States
| | - Ruipeng Li
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Masafumi Fukuto
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Tianbo Liu
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Yingxi Zhu
- Department of Chemical Engineering and Materials Science, Wayne State University, Detroit, Michigan 48202, United States
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121
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Kubota R, Sasaki Y, Minamiki T, Minami T. Chemical Sensing Platforms Based on Organic Thin-Film Transistors Functionalized with Artificial Receptors. ACS Sens 2019; 4:2571-2587. [PMID: 31475522 DOI: 10.1021/acssensors.9b01114] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Organic thin-film transistors (OTFTs) have attracted intense attention as promising electronic devices owing to their various applications such as rollable active-matrix displays, flexible nonvolatile memories, and radiofrequency identification (RFID) tags. To further broaden the scope of the application of OTFTs, we focus on the host-guest chemistry combined with the electronic devices. Extended-gate types of OTFTs functionalized with artificial receptors were fabricated to achieve chemical sensing of targets in complete aqueous media. Organic and inorganic ions (cations and anions), neutral molecules, and proteins, which are regarded as target analytes in the field of host-guest chemistry, were electrically detected by artificial receptors. Molecular recognition phenomena on the extended-gate electrode were evaluated by several analytical methods such as photoemission yield spectroscopy in the air, contact angle goniometry, and X-ray photoelectron spectroscopy. Interestingly, the electrical responses of the OTFTs were highly sensitive to the chemical structures of the guests. Thus, the OTFTs will facilitate the selective sensing of target analytes and the understanding of chemical conversions in biological and environmental systems. Furthermore, such cross-reactive responses observed in our studies will provide some important insights into next-generation sensing systems such as OTFT arrays. We strongly believe that our approach will enable the development of new intriguing sensor platforms in the field of host-guest chemistry, analytical chemistry, and organic electronics.
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Affiliation(s)
- Riku Kubota
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153−8505, Japan
| | - Yui Sasaki
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153−8505, Japan
| | - Tsukuru Minamiki
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153−8505, Japan
| | - Tsuyoshi Minami
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153−8505, Japan
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122
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Furutachi M, Gondo T, Ikeda R, Yoshikawa N, Yokota T, Takeda Y, Yokomizo K, Zhou JR, Kashige N, Miake F, Sumoto K. Anti-proliferative Activities towards Human Brain Glioma U251 Cells and Human Carcinoma Cells (KB3-1) of Some Twin-Drug Type Bivalent C 2-Symmetrical Phenylboronic Acid Derivatives. Biol Pharm Bull 2019; 42:833-836. [PMID: 31061327 DOI: 10.1248/bpb.b18-00859] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Derivatives of C2-symmetrical bivalent phenylboronic acid exhibit several remarkable biological activities such as anti-herpes simplex virus (HSV)-1 and cytotoxic activities against Vero cells and they can reverse the effect of anticancer drugs. Novel symmetrical bivalent molecules were synthesized and their biological activities were evaluated in vitro using a human brain glioma cell line (U251) and a human carcinoma cell line (KB3-1). Among the tested compounds (1a-i), bivalent C2-symmetrical phenylboronic acid derivative 1g showed the highest anti-proliferative activity towards both U251 and KB3-1 cells. The values of 50% anti-proliferative activity (IC50) of this compound against the two cell lines (U251 and KB3-1) were 19.0 and 3.78 µM, respectively. The anti-proliferative activity of compound 1g towards KB3-1 cells was higher than that of cisplatin. The bivalent C2-symmetrical compound 1g had a linear methylene linker in the molecule.
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Affiliation(s)
| | | | - Ryuji Ikeda
- Department of Pharmacy, University of Miyazaki Hospital
| | | | | | | | | | | | | | - Fumio Miake
- Faculty of Pharmaceutical Sciences, Fukuoka University
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123
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Yuan S, Yu B, Liu H. “On‐Water” Palladium‐Catalyzed Tandem Cyclization Reaction for the Synthesis of Biologically Relevant 4‐Arylquinazolines. Chemistry 2019; 25:13109-13113. [DOI: 10.1002/chem.201903464] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/20/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Shuo Yuan
- School of Pharmaceutical sciencesZhengzhou University Zhengzhou 450001 P. R. China
| | - Bin Yu
- School of Pharmaceutical sciencesZhengzhou University Zhengzhou 450001 P. R. China
| | - Hong‐Min Liu
- School of Pharmaceutical sciencesZhengzhou University Zhengzhou 450001 P. R. China
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124
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Szyszka Ł, Cmoch P, Butkiewicz A, Potopnyk MA, Jarosz S. Synthesis of Cyclotriveratrylene-Sucrose-Based Capsules. Org Lett 2019; 21:6523-6528. [PMID: 31389709 DOI: 10.1021/acs.orglett.9b02451] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cyclotriveratrylene (CTV) is a C3-symmetrical macrocycle, which can be used as a chiral building block in the construction of supramolecular containers. Coupling of the CTV unit with a sucrose molecule gave enantiopure water-soluble (after deprotection) containers. The absolute configuration of the synthesized capsules was determined by NMR and ECD spectroscopies and DFT calculations.
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Affiliation(s)
- Łukasz Szyszka
- Institute of Organic Chemistry, Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
| | - Piotr Cmoch
- Institute of Organic Chemistry, Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
| | - Aleksandra Butkiewicz
- Institute of Organic Chemistry, Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
| | - Mykhaylo A Potopnyk
- Institute of Organic Chemistry, Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
| | - Sławomir Jarosz
- Institute of Organic Chemistry, Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
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125
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Leung FK, Kajitani T, Stuart MCA, Fukushima T, Feringa BL. Dual‐Controlled Macroscopic Motions in a Supramolecular Hierarchical Assembly of Motor Amphiphiles. Angew Chem Int Ed Engl 2019; 58:10985-10989. [DOI: 10.1002/anie.201905445] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Indexed: 01/05/2023]
Affiliation(s)
- Franco King‐Chi Leung
- Stratingh Institute for ChemistryUniversity of Groningen Nijenborgh 4 9747AG Groningen Netherlands
| | - Takashi Kajitani
- Laboratory for Chemistry and Life ScienceInstitute of Innovative ResearchTokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Marc C. A. Stuart
- Stratingh Institute for ChemistryUniversity of Groningen Nijenborgh 4 9747AG Groningen Netherlands
| | - Takanori Fukushima
- Laboratory for Chemistry and Life ScienceInstitute of Innovative ResearchTokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Ben L. Feringa
- Stratingh Institute for ChemistryUniversity of Groningen Nijenborgh 4 9747AG Groningen Netherlands
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126
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Dong K, Sun Q, Tang Y, Shan C, Aguila B, Wang S, Meng X, Ma S, Xiao FS. Bio-inspired creation of heterogeneous reaction vessels via polymerization of supramolecular ion pair. Nat Commun 2019; 10:3059. [PMID: 31296873 PMCID: PMC6624306 DOI: 10.1038/s41467-019-11080-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 06/21/2019] [Indexed: 12/12/2022] Open
Abstract
Precise control of the outer-sphere environment around the active sites of heterogeneous catalysts to modulate the catalytic outcomes has long been a challenge. Here, we demonstrate how this can be fulfilled by encapsulating catalytic components into supramolecular capsules, used as building blocks for materials synthesis, whereby the microenvironment of each active site is tuned by the assembled wall. Specifically, using a cationic template equipped with a polymerizable functionality, anionic ligands can be encapsulated by ion pair-directed supramolecular assembly, followed by construction into porous frameworks. The hydrophilic ionic wall enables reactions to be achieved in water that usually requires organic solvents and also facilitates the enrichment of the substrate into the hydrophobic pocket, leading to superior catalytic performances as demonstrated by the industrially relevant hydroformylation. Remarkably, the formation of the supramolecular assembly and catalyst encapsulation further engenders reaction selectivity, which reaches an even greater extent after construction of the porous framework. Tuning the environment of catalytic active sites may improve the selectivity of heterogeneous catalysts. Here, the authors modify the outer-sphere environment of active sites in hydroformylation catalysts by encapsulating the active sites in nanovessels formed by ion pair-directed supramolecular assembly.
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Affiliation(s)
- Ke Dong
- Key Lab of Applied Chemistry of Zhejiang Province, Zhejiang University, 310028, Hangzhou, China
| | - Qi Sun
- College of Chemical and Biological Engineering, Zhejiang University, 310027, Hangzhou, China.
| | - Yongquan Tang
- Key Lab of Applied Chemistry of Zhejiang Province, Zhejiang University, 310028, Hangzhou, China
| | - Chuan Shan
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Briana Aguila
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Sai Wang
- Key Lab of Applied Chemistry of Zhejiang Province, Zhejiang University, 310028, Hangzhou, China
| | - Xiangju Meng
- Key Lab of Applied Chemistry of Zhejiang Province, Zhejiang University, 310028, Hangzhou, China
| | - Shengqian Ma
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA.
| | - Feng-Shou Xiao
- Key Lab of Applied Chemistry of Zhejiang Province, Zhejiang University, 310028, Hangzhou, China.
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127
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Miyazawa Y, Rahman AB, Saga Y, Imafuku H, Hisamatsu Y, Aoki S. Catalytic Hydrolysis of Phosphate Monoester by Supramolecular Complexes Formed by the Self-Assembly of a Hydrophobic Bis(Zn 2+-cyclen) Complex, Copper, and Barbital Units That Are Functionalized with Amino Acids in a Two-Phase Solvent System. MICROMACHINES 2019; 10:mi10070452. [PMID: 31277494 PMCID: PMC6680849 DOI: 10.3390/mi10070452] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 06/30/2019] [Accepted: 07/01/2019] [Indexed: 12/02/2022]
Abstract
We previously reported on the preparation of supramolecular complexes by the 2:2:2 assembly of a dinuclear Zn2+-cyclen (cyclen = 1,4,7,10-tetraazacyclododecane) complex having a 2,2′-bipyridyl linker equipped with 0~2 long alkyl chains (Zn2L1~Zn2L3), 5,5-diethylbarbituric acid (Bar) derivatives, and a copper(II) ion (Cu2+) in aqueous solution and two-phase solvent systems and their phosphatase activities for the hydrolysis of mono(4-nitrophenyl) phosphate (MNP). These supermolecules contain Cu2(μ-OH)2 core that mimics the active site of alkaline phosphatase (AP), and one of the ethyl groups of the barbital moiety is located in close proximity to the Cu2(μ-OH)2 core. The generally accepted knowledge that the amino acids around the metal center in the active site of AP play important roles in its hydrolytic activity inspired us to modify the side chain of Bar with various functional groups in an attempt to mimic the active site of AP in the artificial system, especially in two-phase solvent system. In this paper, we report on the design and synthesis of new supramolecular complexes that are prepared by the combined use of bis(Zn2+-cyclen) complexes (Zn2L1, Zn2L2, and Zn2L3), Cu2+, and Bar derivatives containing amino acid residues. We present successful formation of these artificial AP mimics with respect to the kinetics of the MNP hydrolysis obeying Michaelis–Menten scheme in aqueous solution and a two-phase solvent system and to the mode of the product inhibition by inorganic phosphate.
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Affiliation(s)
- Yuya Miyazawa
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Akib Bin Rahman
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Yutaka Saga
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Hiroki Imafuku
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Yosuke Hisamatsu
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Shin Aoki
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan.
- Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan.
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128
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Leung FK, Kajitani T, Stuart MCA, Fukushima T, Feringa BL. Dual‐Controlled Macroscopic Motions in a Supramolecular Hierarchical Assembly of Motor Amphiphiles. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905445] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Franco King‐Chi Leung
- Stratingh Institute for ChemistryUniversity of Groningen Nijenborgh 4 9747AG Groningen Netherlands
| | - Takashi Kajitani
- Laboratory for Chemistry and Life ScienceInstitute of Innovative ResearchTokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Marc C. A. Stuart
- Stratingh Institute for ChemistryUniversity of Groningen Nijenborgh 4 9747AG Groningen Netherlands
| | - Takanori Fukushima
- Laboratory for Chemistry and Life ScienceInstitute of Innovative ResearchTokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Ben L. Feringa
- Stratingh Institute for ChemistryUniversity of Groningen Nijenborgh 4 9747AG Groningen Netherlands
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129
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Vardhan H, Nafady A, Al-Enizi AM, Khandker K, El-Sagher HM, Verma G, Acevedo-Duncan M, Alotaibi TM, Ma S. Investigation of the Anticancer Activity of Coordination-Driven Self-AssembledTwo-Dimensional Ruthenium Metalla-Rectangle. Molecules 2019; 24:E2284. [PMID: 31248221 PMCID: PMC6630691 DOI: 10.3390/molecules24122284] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 06/04/2019] [Accepted: 06/18/2019] [Indexed: 12/26/2022] Open
Abstract
Coordination-driven self-assembly is an effective synthetic tool for the construction of spatially and electronically tunable supramolecular coordination complexes (SCCs), which are useful in various applications. Herein, we report the synthesis of a two-dimensional discrete metalla-rectangle [(η6-p-cymene)4Ru4(C6H2O4)2(2)2](CF3SO3)4 (3) by the reaction of a dinuclear half-sandwich ruthenium (II) complex [Ru2(η6-p-cymene)2(C6H2O4)Cl2] (1) and bis-pyridyl amide linker (2) in the presence of AgO3SCF3. This cationic ruthenium metalla-rectangle (3) has been isolated as its triflate salt and characterized by analytical techniques including elemental analysis, Fourier-transform infrared spectroscopy (FT-IR), proton nuclear magnetic resonance spectroscopy (1H-NMR), carbon nuclear magnetic resonance spectroscopy (13C-NMR), 1H-1H correlation spectroscopy (COSY), 1H-1H nuclear Overhauser effect spectroscopy (NOESY), diffusion ordered spectroscopy (DOSY), and high-resolution electrospray ionization mass spectrometry (HR-ESI-MS). Significantly, the 2D cationic ruthenium metalla-rectangle showed better anticancer activity towards three different cell lines (A549, Caki-1 and Lovo) as compared with the parent ruthenium complex (1) and the commercially used drug, cisplatin.
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Affiliation(s)
- Harsh Vardhan
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, FL 33620, USA.
| | - Ayman Nafady
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
- Chemistry Department, Faculty of Science, Sohag University, Sohag 82524, Egypt.
| | - Abdullah M Al-Enizi
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Khalid Khandker
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, FL 33620, USA.
| | - Hussein M El-Sagher
- Chemistry Department, Faculty of Science, Sohag University, Sohag 82524, Egypt.
| | - Gaurav Verma
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, FL 33620, USA.
| | - Mildred Acevedo-Duncan
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, FL 33620, USA.
| | - Tawfiq M Alotaibi
- King Abdullah City for Atomic and Renewable Energy, Riyadh 11451, Saudi Arabia.
| | - Shengqian Ma
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, FL 33620, USA.
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130
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Miao S, Liang Y, Marathe I, Mao J, DeSantis C, Bong D. Duplex Stem Replacement with bPNA+ Triplex Hybrid Stems Enables Reporting on Tertiary Interactions of Internal RNA Domains. J Am Chem Soc 2019; 141:9365-9372. [PMID: 31094510 PMCID: PMC7043357 DOI: 10.1021/jacs.9b03435] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
We report herein the synthesis and DNA/RNA binding properties of bPNA+, a new variant of bifacial peptide nucleic acid (bPNA) that binds oligo T/U nucleic acids to form triplex hybrids. By virtue of a new bivalent side chain on bPNA+, similar DNA affinity and hybrid thermostability can be obtained with half the molecular footprint of previously reported bPNA. Lysine derivatives bearing two melamine bases (K2M) can be prepared on multigram scale by double reductive alkylation with melamine acetaldehyde, resulting in a tertiary amine side chain that affords both peptide solubility and selective base-triple formation with 4 T/U bases; the Fmoc-K2M derivative can be used directly in solid phase peptide synthesis, rendering bPNA+ conveniently accessible. A compact bPNA+binding site of two U6 domains can be genetically encoded to replace existing 6 bp stem elements at virtually any location within an RNA transcript. We thus replaced internal 6 bp RNA stems that supported loop regions with 6 base-triple hybrid stems using fluorophore-labeled bPNA+. As the loop regions engaged in RNA tertiary interactions, the labeled hybrid stems provided a fluorescent readout; bPNA+ enabled this readout without covalent chemical modification or introduction of new structural elements. This strategy was demonstrated to be effective for reporting on widely observed RNA tertiary interactions such as intermolecular RNA-RNA kissing loop dimerization, RNA-protein binding, and intramolecular RNA tetraloop-tetraloop receptor binding, illustrating the potential general utility of this method. The modest 6 bp stem binding footprint of bPNA+ makes the hybrid stem replacement method practical for noncovalent installation of synthetic probes of RNA interactions. We anticipate that bPNA+ structural probes will be useful for the study of tertiary interactions in long noncoding RNAs.
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131
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Shen X, Li B, Pan T, Wu J, Wang Y, Shang J, Ge Y, Jin L, Qi Z. Self-assembly behaviors of perylene- and naphthalene-crown macrocycle conjugates in aqueous medium. Beilstein J Org Chem 2019; 15:1203-1209. [PMID: 31293667 PMCID: PMC6604709 DOI: 10.3762/bjoc.15.117] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 05/14/2019] [Indexed: 12/15/2022] Open
Abstract
The synthesis of conjugates of perylene diimide (PDI) and naphthalene diimide (NDI) modified with two benzo-21-crown-7 ethers (B21C7) are herein described. Their self-assembly behavior in various solvents was investigated particularly in aqueous medium, due to the recently discovered hydrophilic properties of B21C7 crown macrocycle. An unexpected fluorescence quenching phenomenon was observed in the PDI-B21C7 macrocycle conjugate in chloroform. The detailed UV-vis absorption and fluorescence spectra of these PDI/NDI derivatives in different solvents as well as their morphologies were investigated.
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Affiliation(s)
- Xin Shen
- 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
| | - Bo Li
- 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
| | - Tiezheng Pan
- 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
| | - 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
| | - Yangxin Wang
- 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
| | - Jie Shang
- 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
| | - 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
| | - 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
- Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P. R. China
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132
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Zhang N, Zhang N, Xu Y, Li Z, Yan C, Mei K, Ding M, Ding S, Guan P, Qian L, Du C, Hu X. Molecularly Imprinted Materials for Selective Biological Recognition. Macromol Rapid Commun 2019; 40:e1900096. [PMID: 31111979 DOI: 10.1002/marc.201900096] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/16/2019] [Indexed: 12/11/2022]
Abstract
Molecular imprinting is an approach of generating imprinting cavities in polymer structures that are compatible with the target molecules. The cavities have memory for shape and chemical recognition, similar to the recognition mechanism of antigen-antibody in organisms. Their structures are also called biomimetic receptors or synthetic receptors. Owing to the excellent selectivity and unique structural predictability of molecularly imprinted materials (MIMs), practical MIMs have become a rapidly evolving research area providing key factors for understanding separation, recognition, and regenerative properties toward biological small molecules to biomacromolecules, even cell and microorganism. In this review, the characteristics, morphologies, and applicability of currently popular carrier materials for molecular imprinting, especially the fundamental role of hydrogels, porous materials, hierarchical nanoparticles, and 2D materials in the separation and recognition of biological templates are discussed. Moreover, through a series of case studies, emphasis is given on introducing imprinting strategies for biological templates with different molecular scales. In particular, the differences and connections between small molecular imprinting (bulk imprinting, "dummy" template imprinting, etc.), large molecular imprinting (surface imprinting, interfacial imprinting, etc.), and cell imprinting strategies are demonstrated in detail. Finally, future research directions are provided.
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Affiliation(s)
- Nan Zhang
- School of Natural and Applied Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China.,Department of Mechanical Engineering, National University of Singapore 9 Engineering Drive 1, 117575, Singapore
| | - Nan Zhang
- School of Natural and Applied Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Yarong Xu
- School of Natural and Applied Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Zhiling Li
- School of Natural and Applied Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Chaoren Yan
- School of Natural and Applied Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Kun Mei
- School of Natural and Applied Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Minling Ding
- School of Natural and Applied Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Shichao Ding
- School of Mechanical and Materials Engineering, Washington State University, Pullman, WA, 99164, USA
| | - Ping Guan
- School of Natural and Applied Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Liwei Qian
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, P. R. China
| | - Chunbao Du
- College of Chemistry and Chemical Engineering, Xi'an Shiyou University, Xi'an, 710065, P. R. China
| | - Xiaoling Hu
- School of Natural and Applied Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
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133
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Ahmadian N, Amininasab M, Mehrnejad F. Paclitaxel interaction with cucurbit [7]uril and acyclic Cucurbit[4]uril nanocontainers: A computational approach. J Mol Graph Model 2019; 90:210-218. [PMID: 31103913 DOI: 10.1016/j.jmgm.2019.05.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 05/10/2019] [Accepted: 05/10/2019] [Indexed: 12/16/2022]
Abstract
Paclitaxel (PTX) is a natural terpenoid compound that has been broadly studied for its antitumor activities and widely used as a chemotherapy medication. The treatment efficacy of PTX is affected by its low aqueous solubility, thus causing a subject of extensive research. In recent years, synthetic molecular containers such as cucurbit[n]urils (CB[n]s) and their derivatives have been significantly developing because of their remarkable ability to bind hydrophobic and cationic drugs. Recent experimental studies have shown that acyclic CB[n]-type containers (aCB[n]s), as new derivatives of the family of CB[n]s, increase the solubility of insoluble pharmaceuticals. However, the nature by which the drug interacts with carriers remains largely unknown. In this study, molecular docking and molecular dynamics (MD) simulation were performed to understand how CB[7] and aCB[4] nanocontainers interact with PTX which affect its aqueous solubility. The results clarify how the flexibility of containers is influenced by their structure and how this affects their interactions with PTX. Our results reveal that although both CB[7] and aCB[4] are capable of binding to PTX, the affinity to aCB[4] is higher than that of CB[7]. It has also been shown that the binding to both CB[7] and aCB[4] is probably an entropy-driven process. This research supports the potential use of the cucurbit[n]urils and their acyclic derivatives as drug delivery systems.
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Affiliation(s)
- Nasim Ahmadian
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran.
| | - Mehriar Amininasab
- Department of Cell and Molecular Biology, School of Biology, College of Science, University of Tehran, Tehran, Iran.
| | - Faramarz Mehrnejad
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran.
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134
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Li DH, Smith BD. Molecular recognition using tetralactam macrocycles with parallel aromatic sidewalls. Beilstein J Org Chem 2019; 15:1086-1095. [PMID: 31164945 PMCID: PMC6541352 DOI: 10.3762/bjoc.15.105] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 05/02/2019] [Indexed: 01/16/2023] Open
Abstract
This review summarizes the supramolecular properties of tetralactam macrocycles that have parallel aromatic sidewalls and four NH residues directed into the macrocyclic cavity. These macrocycles are versatile hosts for a large number of different guest structures in water and organic solvents, and they are well-suited for a range of supramolecular applications. The macrocyclic cavity contains a mixture of polar functional groups and non-polar surfaces which is reminiscent of the amphiphilic binding pockets within many proteins. In water, the aromatic surfaces in the tetralactam cavity drive high affinity due the hydrophobic effect and the NH groups provide secondary interactions that induce binding selectivity. In organic solvents, the supramolecular factors are reversed; the polar NH groups drive high affinity and the aromatic surfaces provide the secondary interactions. In addition to an amphiphilic cavity, macrocyclic tetralactams exhibit conformational flexibility, and the combination of properties enables them to be effective hosts for a wide range of guest molecules including organic biscarbonyl derivatives, near-infrared dyes, acenes, precious metal halide complexes, trimethylammonium ion-pairs, and saccharides.
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Affiliation(s)
- Dong-Hao Li
- Department of Chemistry and Biochemistry, University of Notre Dame, 236 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
| | - Bradley D Smith
- Department of Chemistry and Biochemistry, University of Notre Dame, 236 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
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135
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Supramolecular membranes: A robust platform to develop separation strategies towards water-based applications. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.01.035] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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136
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Jana S, Suryavanshi KK. Recognition and Sensing of Guanidine-containing Biomolecules in Aqueous Medium. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2019. [DOI: 10.1134/s1070428019050208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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137
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Catti L, Kishida N, Kai T, Akita M, Yoshizawa M. Polyaromatic nanocapsules as photoresponsive hosts in water. Nat Commun 2019; 10:1948. [PMID: 31019192 PMCID: PMC6482177 DOI: 10.1038/s41467-019-09928-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 04/05/2019] [Indexed: 01/02/2023] Open
Abstract
Molecular containers that provide both stimuli-responsive assembly/disassembly properties and wide-ranging host capabilities in aqueous medium still remain a current synthetic challenge. Herein we report polyaromatic nanocapsules assembled from V-shaped amphiphilic molecules bearing a photoresponsive ortho-dianthrylbenzene unit in water. Unlike previously reported supramolecular capsules and cages, the nanocapsules quickly and quantitatively disassemble into monomeric species by a non-invasive light stimulus through structural conversion from the open to the closed form of the amphiphiles. Regeneration of the nanocapsules is demonstrated by light irradiation or heating of the closed amphiphiles. With the aid of the wide-ranging host capability, the photo-induced release of various encapsulated guest molecules (e.g., Nile red, Cu(II)-phthalocyanine, and fullerene C60) can be achieved by using the present nanocapsule in water. This feature can furthermore be utilized to switch the fluorescence of encapsulated coumarin guests through their controlled release. Photoresponsive molecular capsules that can be used in water are rare. Here, the authors construct polyaromatic nanocapsules via self-assembly from photoswitch-bearing amphiphilic molecules in water. Light induces a structural change in the amphiphiles, triggering the capsule to disassemble into monomers and release encapsulated guests.
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Affiliation(s)
- Lorenzo Catti
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Natsuki Kishida
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Tomokuni Kai
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Munetaka Akita
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Michito Yoshizawa
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan.
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138
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139
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He Y, Zhang Y, Wojtas L, Akhmedov NG, Thai D, Wang H, Li X, Guo H, Shi X. Construction of a cross-layer linked G-octamer via conformational control: a stable G-quadruplex in H-bond competitive solvents. Chem Sci 2019; 10:4192-4199. [PMID: 31057748 PMCID: PMC6471798 DOI: 10.1039/c9sc00190e] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Accepted: 03/05/2019] [Indexed: 11/21/2022] Open
Abstract
Methanol soluble and stable guanosine octamers were successfully achieved via H-bond self-assembly. Through structural conformational design, we developed a new class of guanosine derivatives with modification on guanine (8-aryl) and ribose (2',3'-isopropylidene). This unique design led to the formation of the first discrete G8-octamer with its structure characterized by single crystal X-ray diffraction, MS and NMR spectroscopy. The G8-octamer showed unique cation recognition properties, including the formation of a stable Rb+ templated G-quadruplex. Based on this observation, further modification on the 8-aryl moiety was performed to incorporate a cross-layer H-bond or covalent linkage. Similar G-octamers were obtained in both cases with structures confirmed by single crystal X-ray diffraction. Furthermore, the covalently linked G-quadruplex exhibited excellent stability even in MeOH and DMSO, suggesting a promising future for this new H-bond self-assembly system in biological and material applications.
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Affiliation(s)
- Ying He
- Department of Chemistry , University of South Florida , 4202 E. Fowler Avenue , Tampa , Florida 33620 , USA .
| | - Yanbin Zhang
- Department of Chemistry , Fudan University , 2005 Songhu Road , Shanghai , 200438 , People's Republic of China
| | - Lukasz Wojtas
- Department of Chemistry , University of South Florida , 4202 E. Fowler Avenue , Tampa , Florida 33620 , USA .
| | - Novruz G Akhmedov
- Department of Chemistry , West Virginia University , Morgantown , WV 26505 , USA
| | - David Thai
- Department of Chemistry , University of South Florida , 4202 E. Fowler Avenue , Tampa , Florida 33620 , USA .
| | - Heng Wang
- Department of Chemistry , University of South Florida , 4202 E. Fowler Avenue , Tampa , Florida 33620 , USA .
| | - Xiaopeng Li
- Department of Chemistry , University of South Florida , 4202 E. Fowler Avenue , Tampa , Florida 33620 , USA .
| | - Hao Guo
- Department of Chemistry , Fudan University , 2005 Songhu Road , Shanghai , 200438 , People's Republic of China
| | - Xiaodong Shi
- Department of Chemistry , University of South Florida , 4202 E. Fowler Avenue , Tampa , Florida 33620 , USA .
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140
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Rahman AB, Imafuku H, Miyazawa Y, Kafle A, Sakai H, Saga Y, Aoki S. Catalytic Hydrolysis of Phosphate Monoester by Supramolecular Phosphatases Formed from a Monoalkylated Dizinc(II) Complex, Cyclic Diimide Units, and Copper(II) in Two-Phase Solvent System. Inorg Chem 2019; 58:5603-5616. [PMID: 30969761 DOI: 10.1021/acs.inorgchem.8b03586] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Design and synthesis of enzyme mimic with programmed molecular interaction among several building blocks including metal complexes and metal chelators is of intellectual and practical significance. The preparation of artificial enzymes that mimic the natural enzymes such as hydrolases, phosphatases, etc. remains a great challenge in the field of supramolecular chemistry. Herein we report on the design and synthesis of asymmetric (nonsymmetric) supermolecules by the 2:2:2 self-assembly of an amphiphilic zinc(II)-cyclen complex containing a 2,2'-bipyridyl linker and one long alkyl chain (Zn2L3), barbital analogues, and Cu2+ as model compounds of an enzyme alkaline phosphatase that catalyzes the hydrolysis of phosphate monoesters such as mono(4-nitrophenyl)phosphate at neutral pH in two-phase solvent system (H2O/CHCl3) in pH 7.4 and 37 °C. Hydrolytic activity of these complexes was found to be catalytic, and their catalytic turnover numbers are 3-4. The mechanistic studies based on the UV/vis and emission spectra of the H2O and CHCl3 phases of the reaction mixtures suggest that the hydrophilicity/hydrophobicity balance of the supramolecular catalysts is an important factor for catalytic activity.
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141
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Peñuelas-Haro G, Ballester P. Efficient hydrogen bonding recognition in water using aryl-extended calix[4]pyrrole receptors. Chem Sci 2019; 10:2413-2423. [PMID: 30931096 PMCID: PMC6399678 DOI: 10.1039/c8sc05034a] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 12/19/2018] [Indexed: 12/25/2022] Open
Abstract
We describe the synthesis of four water-soluble aryl-extended calix[4]pyrrole receptors and report their binding properties with multiple neutral polar guests in water. The prepared receptors present different functionalization at their upper rims and have in common the placement of water solubilizing pyridinium groups at their lower rims. We investigate the interaction of the receptors with a guest series in water solution using 1H NMR titrations and ITC experiments. Despite the known competitive nature of water for hydrogen-bonding interactions, we demonstrate the formation of thermodynamically highly stable 1 : 1 inclusion complexes stabilized by hydrogen-bonding interactions. We show that increasing the hydrogen-bond acceptor character of the guest has a positive impact on binding affinity. This result suggests that the receptor's cavity is indeed a better hydrogen-bond donor to interact with the guests than water molecules. We also assess the important contribution of the hydrophobic effect to binding by comparing the binding affinities of analogous inclusion complexes in water and chloroform solutions. The more polar guests are bound with similar affinities in the two solvents. We compare the binding properties of the different complexes in order to derive general trends.
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Affiliation(s)
- G Peñuelas-Haro
- Institute of Chemical Research of Catalonia (ICIQ) , The Barcelona Institute of Science and Technology (BIST) , Av. Països Catalans, 16 , 43007-Tarragona , Spain .
- Universitat Rovira i Virgili , Departament de Química Analítica i Química Orgànica , c/Marcel·li Domingo, 1 , 43007-Tarragona , Spain
| | - P Ballester
- Institute of Chemical Research of Catalonia (ICIQ) , The Barcelona Institute of Science and Technology (BIST) , Av. Països Catalans, 16 , 43007-Tarragona , Spain .
- ICREA , Pg. Lluís Companys, 23 , 08018-Barcelona , Spain
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142
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Ferreira P, Ventura B, Barbieri A, Da Silva JP, Laia CAT, Parola AJ, Basílio N. A Visible–Near‐Infrared Light‐Responsive Host–Guest Pair with Nanomolar Affinity in Water. Chemistry 2019; 25:3477-3482. [DOI: 10.1002/chem.201806105] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Revised: 01/09/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Pedro Ferreira
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE)Departmento de QuímicaFaculdade de Ciências e TecnologiaUniversidade NOVA de Lisboa 2829-516 Caparica Portugal
| | - Barbara Ventura
- Istituto per la Sintesi Organica e la Fotoreattivitá (ISOF)Consiglio Nazionale delle Ricerche (CNR) Via P. Gobetti 101 40129 Bologna Italy
| | - Andrea Barbieri
- Istituto per la Sintesi Organica e la Fotoreattivitá (ISOF)Consiglio Nazionale delle Ricerche (CNR) Via P. Gobetti 101 40129 Bologna Italy
| | - José P. Da Silva
- CCMAR–Centre of Marine SciencesUniversity of Algarve Campus de Gambelas 8005-139 Faro Portugal
| | - César A. T. Laia
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE)Departmento de QuímicaFaculdade de Ciências e TecnologiaUniversidade NOVA de Lisboa 2829-516 Caparica Portugal
| | - A. Jorge Parola
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE)Departmento de QuímicaFaculdade de Ciências e TecnologiaUniversidade NOVA de Lisboa 2829-516 Caparica Portugal
| | - Nuno Basílio
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE)Departmento de QuímicaFaculdade de Ciências e TecnologiaUniversidade NOVA de Lisboa 2829-516 Caparica Portugal
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143
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Blanco-Gómez A, Fernández-Blanco Á, Blanco V, Rodríguez J, Peinador C, García MD. Thinking Outside the “Blue Box”: Induced Fit within a Unique Self-Assembled Polycationic Cyclophane. J Am Chem Soc 2019; 141:3959-3964. [DOI: 10.1021/jacs.8b12599] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Arturo Blanco-Gómez
- Departamento de Química and Centro de Investigacións Científicas Avanzadas (CICA). Facultade de Ciencias, Universidade da Coruña, 15071, A Coruña, Spain
| | - Ángel Fernández-Blanco
- Departamento de Química and Centro de Investigacións Científicas Avanzadas (CICA). Facultade de Ciencias, Universidade da Coruña, 15071, A Coruña, Spain
| | - Víctor Blanco
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Granada, Campus Fuentenueva S/N, 18071 Granada, Spain
| | - Jaime Rodríguez
- Departamento de Química and Centro de Investigacións Científicas Avanzadas (CICA). Facultade de Ciencias, Universidade da Coruña, 15071, A Coruña, Spain
| | - Carlos Peinador
- Departamento de Química and Centro de Investigacións Científicas Avanzadas (CICA). Facultade de Ciencias, Universidade da Coruña, 15071, A Coruña, Spain
| | - Marcos D. García
- Departamento de Química and Centro de Investigacións Científicas Avanzadas (CICA). Facultade de Ciencias, Universidade da Coruña, 15071, A Coruña, Spain
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144
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Andersen NN, Eriksen K, Lisbjerg M, Ottesen ME, Milhøj BO, Sauer SPA, Pittelkow M. Entropy/Enthalpy Compensation in Anion Binding: Biotin[6]uril and Biotin-l-sulfoxide[6]uril Reveal Strong Solvent Dependency. J Org Chem 2019; 84:2577-2584. [DOI: 10.1021/acs.joc.8b02797] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Nicolaj N. Andersen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Kristina Eriksen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Micke Lisbjerg
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Mille E. Ottesen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Birgitte O. Milhøj
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Stephan P. A. Sauer
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Michael Pittelkow
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
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145
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Moreno-Gómez N, Vargas EF, Buchner R. Hydration and Counterion Binding of an Aminomethylated Resorcin[4]arene. J Phys Chem B 2019; 123:1840-1846. [DOI: 10.1021/acs.jpcb.8b11900] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nicolás Moreno-Gómez
- Institut für Physikalische und Theoretische Chemie, Universität Regensburg, D-93040 Regensburg, Germany
- Laboratorio de Termodinámica de Soluciones, Departamento de Química, Universidad de Los Andes, Cr. 1 No. 18 A-12, Bogotá, Colombia
| | - Edgar F. Vargas
- Laboratorio de Termodinámica de Soluciones, Departamento de Química, Universidad de Los Andes, Cr. 1 No. 18 A-12, Bogotá, Colombia
| | - Richard Buchner
- Institut für Physikalische und Theoretische Chemie, Universität Regensburg, D-93040 Regensburg, Germany
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146
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Sapotta M, Hofmann A, Bialas D, Würthner F. A Water-Soluble Perylene Bisimide Cyclophane as a Molecular Probe for the Recognition of Aromatic Alkaloids. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201813559] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Meike Sapotta
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Anja Hofmann
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - David Bialas
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Frank Würthner
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
- Center for Nanosystems Chemistry (CNC); Universität Würzburg; Theodor-Boveri-Weg 97074 Würzburg Germany
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147
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Sapotta M, Hofmann A, Bialas D, Würthner F. A Water-Soluble Perylene Bisimide Cyclophane as a Molecular Probe for the Recognition of Aromatic Alkaloids. Angew Chem Int Ed Engl 2019; 58:3516-3520. [DOI: 10.1002/anie.201813559] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Meike Sapotta
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Anja Hofmann
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - David Bialas
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Frank Würthner
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
- Center for Nanosystems Chemistry (CNC); Universität Würzburg; Theodor-Boveri-Weg 97074 Würzburg Germany
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148
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Angamuthu V, Rahman FU, Petroselli M, Li Y, Yu Y, Rebek J. Mono epoxidation of α,ω-dienes using NBS in a water-soluble cavitand. Org Chem Front 2019. [DOI: 10.1039/c9qo00849g] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The cavitand induced “yo-yo” motion was applied to mono-epoxidation reaction of α,ω-dienes using N-bromosuccinamide and K2CO3 in D2O.
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Affiliation(s)
- Venkatachalam Angamuthu
- Center for Supramolecular Chemistry & Catalysis and Department of Chemistry
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Faiz-Ur Rahman
- Center for Supramolecular Chemistry & Catalysis and Department of Chemistry
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Manuel Petroselli
- Center for Supramolecular Chemistry & Catalysis and Department of Chemistry
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Yongsheng Li
- Center for Supramolecular Chemistry & Catalysis and Department of Chemistry
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Yang Yu
- Center for Supramolecular Chemistry & Catalysis and Department of Chemistry
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Julius Rebek
- Center for Supramolecular Chemistry & Catalysis and Department of Chemistry
- Shanghai University
- Shanghai 200444
- P. R. China
- The Skaggs Institute for Chemical Biology and Department of Chemistry
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149
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Escobar L, Ballester P. Quantification of the hydrophobic effect using water-soluble super aryl-extended calix[4]pyrroles. Org Chem Front 2019. [DOI: 10.1039/c9qo00171a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the quantification of the hydrophobic effect using a model system based on water-soluble super aryl-extended calix[4]pyrrole receptors and a series of pyridyl N-oxide derivatives, bearing a non-polar para-substituent, as guests.
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Affiliation(s)
- Luis Escobar
- Institute of Chemical Research of Catalonia (ICIQ)
- The Barcelona Institute of Science and Technology (BIST)
- Tarragona
- Spain
- Universitat Rovira i Virgili
| | - Pablo Ballester
- Institute of Chemical Research of Catalonia (ICIQ)
- The Barcelona Institute of Science and Technology (BIST)
- Tarragona
- Spain
- ICREA
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150
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Vedernikov AI, Lobova NA, Kuz’mina LG, Fomina MV, Strelenko YA, Howard JAK, Gromov SP. Self-assembly of cucurbiturils and cyclodextrins to supramolecular millstones with naphthalene derivatives capable of translocations in the host cavities. NEW J CHEM 2019. [DOI: 10.1039/c8nj04685a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Naphthylpyridine derivatives and cavitands form inclusive complexes of different structure and stoichiometry; the guests are capable of translocations within cucurbit[7,8]uril cavities.
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Affiliation(s)
- Artem I. Vedernikov
- Photochemistry Center of RAS
- FSRC “Crystallography and Photonics”
- Russian Academy of Sciences
- Moscow 119421
- Russian Federation
| | - Natalia A. Lobova
- Photochemistry Center of RAS
- FSRC “Crystallography and Photonics”
- Russian Academy of Sciences
- Moscow 119421
- Russian Federation
| | - Lyudmila G. Kuz’mina
- N. S. Kurnakov Institute of General and Inorganic Chemistry
- Russian Academy of Sciences
- Moscow 119991
- Russian Federation
| | - Marina V. Fomina
- Photochemistry Center of RAS
- FSRC “Crystallography and Photonics”
- Russian Academy of Sciences
- Moscow 119421
- Russian Federation
| | - Yuri A. Strelenko
- N. D. Zelinskiy Institute of Organic Chemistry
- Russian Academy of Sciences
- Moscow 119991
- Russian Federation
| | | | - Sergey P. Gromov
- Photochemistry Center of RAS
- FSRC “Crystallography and Photonics”
- Russian Academy of Sciences
- Moscow 119421
- Russian Federation
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