1
|
Metwally H, Yu J, Theriault R, Kolwich JL, Ellis R, Ross AC, Oleschuk RD. Crown ether dopant to reduce ion suppression and improve detection in the liquid microjunction surface sampling probe. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2024; 38:e9889. [PMID: 39159929 DOI: 10.1002/rcm.9889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 07/25/2024] [Accepted: 07/28/2024] [Indexed: 08/21/2024]
Abstract
RATIONALE Sodium and potassium are required in agar media for the growth of some microorganisms (e.g., marine bacteria). However, alkali cations are a significant source of contamination for mass spectrometry causing ion suppression and adduct formation. Conventionally, salts can be removed before mass spectrometric analysis with appropriate and often lengthy sample preparation. The direct mass spectrometric sampling of bacterial colonies grown on agar media seeks to minimize or eliminate sample preparation to improve workflow. However, this may exacerbate ion suppression and contamination since these metal cations will degrade spectral quality and limit the rapid profiling of microbial metabolites. Different approaches are needed to sequester sodium and potassium ions to minimize unwanted background interferences. Herein, we use crown ethers (CEs) in combination with a liquid microjunction surface sampling probe (LMJ-SSP) to directly sample the surface of the bacterial colonies from two marine bacteria species (Pseudoalteromonas rubra DSM6842 and Pseudoalteromonas tunicata DSM 14096). CEs (e.g., 18-crown-6 or 15-crown-5) are added to the carrier solvent of the LMJ-SSP, the chemical noise is reduced, and spectra are easier to interpret. METHODS The liquid microjunction formed at the tip of LMJ-SSP was used to directly touch bacterial colonies on agar. The carrier solvent was either methanol (100%) or methanol: H2O (50:49.9%) with or without 0.01% CEs. Information-theoretic measures are employed to investigate qualitative changes between spectra before and after adding CEs. RESULTS Our work demonstrates the capability of CEs to reduce background interferences within the direct profiling of bacterial colonies from agar plates. The data obtained from both P. rubra DSM6842 and P. tunicata DSM 14096 show that CEs can be used to mitigate the salty background and improve compound detection. CONCLUSION Our approach can be implemented in natural product discovery using LMJ-SSP to allow fast and accurate detection of interesting/novel compounds.
Collapse
Affiliation(s)
- Haidy Metwally
- Department of Chemistry, Queen's University, Kingston, Ontario, Canada
| | - Jian Yu
- Department of Chemistry, Queen's University, Kingston, Ontario, Canada
| | - Rachel Theriault
- School of Computing, Queen's University, Kingston, Ontario, Canada
| | | | - Randy Ellis
- School of Computing, Queen's University, Kingston, Ontario, Canada
| | - Avena C Ross
- Department of Chemistry, Queen's University, Kingston, Ontario, Canada
| | | |
Collapse
|
2
|
Patrick SC, Hein R, Beer PD, Davis JJ. Non-faradaic capacitive cation sensing under flow. Chem Sci 2024:d4sc05271d. [PMID: 39263657 PMCID: PMC11382808 DOI: 10.1039/d4sc05271d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2024] [Accepted: 09/02/2024] [Indexed: 09/13/2024] Open
Abstract
The ability to continually monitor target ion species in real-time is a highly sought-after endeavour in the field of host-guest chemistry, given its direct pertinence to medical and environmental applications. Developing methodologies which support sensitive and continuous ion sensing in aqueous media, however, remains a challenge. Herein, we present a versatile and facile, proof-of-concept electrochemical sensing methodology based on non-faradaic capacitance, which can be operated continuously with high temporal resolution (≈1.4 s), in conjunction with custom-designed integrated microfluidics. The potential of this method is demonstrated for cation sensing at a chemically simple benzo-15-crown-5-based molecular film (B15C5SAM) as a representative redox-inactive, receptive interface. Detection limits as low as 4 μM are obtained for Na+ by these entirely reagentless analyses, and are additionally characterised by exceptional baseline stabilities that are able to support continuous sensing over multiple days. The platform performs well in artificial sweat across physiologically relevant spans of sodium concentration, and provides meaningful dose-dependent responses in freshwater samples. Finally, the high assay temporal resolution affords an ability to resolve both the kinetics of binding (association/dissociation) and notably characteristic fingerprints for different alkali metals which may be diagnostic of different interfacial ion binding modes.
Collapse
Affiliation(s)
- Sophie C Patrick
- Department of Chemistry, University of Oxford South Parks Road Oxford OX1 3QZ UK
| | - Robert Hein
- Department of Chemistry, University of Oxford South Parks Road Oxford OX1 3QZ UK
| | - Paul D Beer
- Department of Chemistry, University of Oxford South Parks Road Oxford OX1 3QZ UK
| | - Jason J Davis
- Department of Chemistry, University of Oxford South Parks Road Oxford OX1 3QZ UK
| |
Collapse
|
3
|
Kumar N. Exclusive ion recognition using host-guest sandwich complexes. Phys Chem Chem Phys 2024; 26:3152-3158. [PMID: 38189478 DOI: 10.1039/d3cp05070j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Ion recognition in porous aqueous media utilizing polyethers involves the formation of 1 : 1 and higher-order host-guest complexes. The effectiveness of these interactions relies on the optimal size of the host cavity to encapsulate the guest ions. While liquid/liquid extraction based on host-guest interactions offers higher specificity in metal ion extraction, it results in the co-extraction of unwanted coordinating solvents and counter-anions. Therefore, an improved protocol is required by which the ion can be selectively trapped within the host cavity and simultaneously decrease the guest coordination with the outside environment. This study delves into the microscopic mechanisms underpinning the exclusive ion recognition through the formation of 2 : 1 host-guest sandwich complexes, which reduce metal coordination with solvent or counter-ions, ensuring selectivity. Our analysis shows that ions with a radius larger than the host cavity, such as cesium (Cs+), form stable host-guest sandwich complexes at elevated host concentrations. In this study, we performed molecular dynamics simulations to investigate the microscopic details of Cs+ interactions with open-chain and preorganized polyethers, namely podand, crown, and cryptand in electrolyte media. Our findings reveal that the formation of stable Cs+-crown sandwich complexes significantly reduces Cs+ coordination with H2O and NO3-. This loss of solute coordination leads to exclusivity in bound metal ions, offering a potential strategy for efficient solvent extraction.
Collapse
Affiliation(s)
- Nitesh Kumar
- Department of Chemistry, Washington State University, Pullman, WA, 99163, USA.
| |
Collapse
|
4
|
|
5
|
Cao S, Sun C, Wang J, Jiang Q, Qiu Y, Wang H, Liao Y, Xie X. Helix Induction and Inversion of Polymeric Foldamer Regulated by the Single Enantiomers. Macromol Rapid Commun 2022; 43:e2200238. [PMID: 35510985 DOI: 10.1002/marc.202200238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 04/28/2022] [Indexed: 11/12/2022]
Abstract
In general, a single enantiomer can induce a foldamer into a preferred-handed helix, while another condition is required for the helical inversion. In this work, it is found that the helix induction and subsequent inversion of the poly(m-phenylene diethynylene)-based foldamer bearing aza-18-crown-6 pendants (Poly-1) can be realized by increasing the concentration of sterically hindered L-amino acid perchlorate salts. When the amount of chiral enantiomers is small, one enantiomer tends to complex with two non-adjacent aza-18-crown-6 rings via three N+ -H···O hydrogen bonds in a sandwich mode. Notably, the transition dipole moment is perpendicular to aza-18-crown-6 ring, so that the induced helical chirality in Poly-1 main chain is opposite to the chirality of enantiomers. When the amount of chiral enantiomers is large enough, each aza-18-crown-6 is occupied by one enantiomer, which causes the transition dipole moment in a parallel direction to aza-18-crown-6 ring. In this case, the increased steric hindrance can facilitate the inversion of screw sense of Poly-1 main chain, which is directed by chiral center of enantiomers. As a result, a helix inversion has been achieved successfully. This work not only provides a novel strategy for regulating the two-stage folded helical conformations by the single enantiomers, but opens a window to develop chiral recognition materials. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Shuang Cao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Chenchen Sun
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Jing Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Qian Jiang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yuan Qiu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Hong Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yonggui Liao
- National Anti-counterfeit Engineering Research Center, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xiaolin Xie
- National Anti-counterfeit Engineering Research Center, Huazhong University of Science and Technology, Wuhan, 430074, China
| |
Collapse
|
6
|
Qin HY, Liu Z, Dan Yang X, Liu YQ, Xie R, Ju XJ, Wang W, Chu LY. Pseudo Polyampholytes with Sensitively Ion-Responsive Conformational Transition Based on Positively Charged Host-Guest Complexes. Macromol Rapid Commun 2022; 43:e2200127. [PMID: 35334130 DOI: 10.1002/marc.202200127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/18/2022] [Indexed: 11/09/2022]
Abstract
Biological polyampholytes are ubiquitous in living organisms with primary functions including that serving as transporters for moving chemical molecular species across the cell membranes. Synthetic amphoteric macromolecules that can change their phase states depending on the environment to simulate some properties of natural polyampholytes are of great interests. Here, we explore implementation of synthetic pseudo polymeric ampholytes with ion-recognition-triggered conformational change. The phase transition behaviors of the ion-recognition-creative polyampholytes that containing deprotonated carboxylic acid groups as negative charges and 18-crown-6 units for forming positively charged host-guest complexes are systematically investigated. The ion-recognition-triggered phase transition behaviors of pseudo polyampholytes are significantly dependent on cation species and concentrations. Only those specific ions like K+ , Ba2+ , Sr2+ and Pb2+ ions that can form 1:1 host-guest complexes with 18-crown-6 units in polymers enable to control over the conformational change like that of the traditional pH-dependent polyampholytes. By regulating the content of the carboxylic acid groups to match the content of the ion-recognized positive charges provided by the host-guest complexes, the pseudo polyampholytes are more sensitive to the recognizable cations. Such ion-recognition-triggered amphoteric characteristics make the pseudo polyampholytes acting like biological proteins, nucleic acids and enzymes as molecular transporters, genetic code storage and biocatalysts in artificial systems. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Hai-Yue Qin
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| | - Zhuang Liu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China.,State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| | - Xue- Dan Yang
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| | - Yu-Qiong Liu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| | - Rui Xie
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China.,State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| | - Xiao-Jie Ju
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China.,State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| | - Wei Wang
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China.,State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| | - Liang-Yin Chu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China.,State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| |
Collapse
|
7
|
Oral I, Abetz V. Improved alkali metal ion capturing utilizing crown ether-based diblock copolymers in a sandwich-type complexation. SOFT MATTER 2022; 18:934-937. [PMID: 35044394 DOI: 10.1039/d1sm01815a] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The compexation behavior of metals with free crown ethers (CE) and diblock copolymer-based CE is investigated. The latter shows at least 10 000 times stronger complexation than free CEs. On this basis, a highly stable CE complex within the polymer for efficient extraction of metal ions from low concentrations, e.g. lithium in seawater, is presented.
Collapse
Affiliation(s)
- Iklima Oral
- Institute of Physical Chemistry, Universität Hamburg, Grindelallee 117, 20146 Hamburg, Germany.
| | - Volker Abetz
- Institute of Physical Chemistry, Universität Hamburg, Grindelallee 117, 20146 Hamburg, Germany.
- Helmholtz-Zentrum Hereon, Institute of Membrane Research, Max-Planck-Straße 1, 21502 Geesthacht, Germany
| |
Collapse
|
8
|
Wang WZ, Huang LB, Zheng SP, Moulin E, Gavat O, Barboiu M, Giuseppone N. Light-Driven Molecular Motors Boost the Selective Transport of Alkali Metal Ions through Phospholipid Bilayers. J Am Chem Soc 2021; 143:15653-15660. [PMID: 34520204 DOI: 10.1021/jacs.1c05750] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A hydrophobic light-driven rotary motor is functionalized with two 18-crown-6 macrocycles and incorporated into phospholipid bilayers. In the presence of this molecular construct, fluorescence assays and patch clamp experiments show the formation of selective alkali ion channels through the membrane. Further, they reveal a strongly accelerated ion transport mechanism under light irradiation. This increase of the fractional ion transport activity (up to 400%) is attributed to the out-of-equilibrium actuation dynamics of the light-driven rotary motors, which help to overcome the activation energy necessary to achieve translocation of alkali ions between macrocycles along the artificial channels.
Collapse
Affiliation(s)
- Wen-Zhi Wang
- SAMS Research Group, Institut Charles Sadron UPR22, Centre National de la Recherce Scientifique, Université de Strasbourg, 67000 Strasbourg, France
| | - Li-Bo Huang
- Adaptive Supramolecular Nanosystems Group, Institut Européen des Membranes (IEM), University of Montpellier, 300 Avenue du Professeur Emile Jeanbrau, 34000 Montpellier, France
| | - Shao-Ping Zheng
- Adaptive Supramolecular Nanosystems Group, Institut Européen des Membranes (IEM), University of Montpellier, 300 Avenue du Professeur Emile Jeanbrau, 34000 Montpellier, France
| | - Emilie Moulin
- SAMS Research Group, Institut Charles Sadron UPR22, Centre National de la Recherce Scientifique, Université de Strasbourg, 67000 Strasbourg, France
| | - Odile Gavat
- SAMS Research Group, Institut Charles Sadron UPR22, Centre National de la Recherce Scientifique, Université de Strasbourg, 67000 Strasbourg, France
| | - Mihail Barboiu
- Adaptive Supramolecular Nanosystems Group, Institut Européen des Membranes (IEM), University of Montpellier, 300 Avenue du Professeur Emile Jeanbrau, 34000 Montpellier, France
| | - Nicolas Giuseppone
- SAMS Research Group, Institut Charles Sadron UPR22, Centre National de la Recherce Scientifique, Université de Strasbourg, 67000 Strasbourg, France
| |
Collapse
|
9
|
Yolsal U, Horton TA, Wang M, Shaver MP. Polymer-supported Lewis acids and bases: Synthesis and applications. Prog Polym Sci 2020. [DOI: 10.1016/j.progpolymsci.2020.101313] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
10
|
Atta NF, Galal A, El-Gohary ARM. New insight for simultaneous determination of hazardous di-hydroxybenzene isomers at crown ether modified polymer/carbon nanotubes composite sensor. JOURNAL OF HAZARDOUS MATERIALS 2020; 388:122038. [PMID: 31968302 DOI: 10.1016/j.jhazmat.2020.122038] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 12/31/2019] [Accepted: 01/06/2020] [Indexed: 06/10/2023]
Abstract
A new insight is presented in the fabrication of a reliable electrochemical sensor for di-hydroxybenzene isomers; hydroquinone (HQ), catechol (CC), and resorcinol (RC) which have been considered as common pollutants in environment and water samples. The sensor is based on modifying the glassy carbon electrode (GC) with successive layers, multi-walled carbon nanotubes (CNT), poly-hydroquinone (PHQ) and benzo-12-crown-4 (CE); GC/CNT/PHQ/CE. CE is introduced for the first time as a receptor for the di-hydroxybenzene isomers based on host-guest size matching. Other cycling compound with different cavity diameter as β-cyclodextrin (β-CD) (6.0-6.5 Å) was examined displaying lower current responses. CE exhibited "fit" cavity size (1.20-1.50 Å). Thus, the inclusion complexes formed between β-CD and di-hydroxybenzene isomers are less stable. The layered sensor showed highly electro-catalytic activity for simultaneous determination of isomers; HQ, CC and RC in the concentration ranges of 0.03-100 μM, 0.01-100 μM and 0.05-100 μM with low detection limit values of 0.156 nM, 0.118 nM and 0.427 nM, respectively. The practical impact of the sensor was illustrated for determination of di-hydroxybenzene isomers in real water matrices from two different sources. Moreover, anti-interference ability of the layered sensor for determination of di-hydroxybenzene isomers was successfully achieved in presence of common interfering ions and organic pollutants.
Collapse
Affiliation(s)
- Nada F Atta
- Chemistry Department, Faculty of Science, Cairo University, 12613 Giza, Egypt.
| | - Ahmed Galal
- Chemistry Department, Faculty of Science, Cairo University, 12613 Giza, Egypt
| | - Asmaa R M El-Gohary
- Chemistry Department, Faculty of Science, Cairo University, 12613 Giza, Egypt
| |
Collapse
|
11
|
Heo J. Computational study of selectivity of dibenzo-18-crown-6-ether dimer for alkaline-earth divalent cations. COMPUT THEOR CHEM 2020. [DOI: 10.1016/j.comptc.2019.112671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
12
|
Hu JQ, Liu Z, Deng K, Chen ZH, Cai QW, Faraj Y, Xie R, Ju XJ, Wang W, Chu LY. A novel membrane with ion-recognizable copolymers in graphene-based nanochannels for facilitated transport of potassium ions. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.117345] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
13
|
Nieto-Alvarez DA, Martínez-Magadán JM, Cerón-Camacho R, Servín-Nájera AG, Cisneros-Dévora R, Zamudio-Rivera LS. Density Functional Theory and UPLC/MS/ESI + studies of the zwitterionic surfactant-Na + pair formation. J Mol Graph Model 2019; 91:204-213. [PMID: 31265937 DOI: 10.1016/j.jmgm.2019.06.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 06/13/2019] [Accepted: 06/20/2019] [Indexed: 10/26/2022]
Abstract
The formation in solution of supramolecular complexes type zwitterion-cation have been shown. The industrial grade zwitterion surfactants cocamidopropyl hydroxysultaine and cocamidopropyl betaine with sodium ion were studied. A combined experimental and theoretical point of view was performed, through the use of Ultra-Performance Liquid Chromatography/Mass Spectrometry/ElectroSpray Ionization with positive mode (UPLC/MS/ESI+) analytic technique and Density Functional Theory (DFT) theoretical approach. Then, the supramolecular complex zwitterion-cation-anion triplets are shown to be viable. Mass/Charge (m/z) relationships have been determined through MS/ESI using positive mode as an ionization source, obtaining five and four molecular species for industrial grade sultaine and betaine chemical products, respectively. Also, molecular zwitterion-NaCl complexes were theoretically studied in three different dielectric constants corresponding to water, methanol, and acetone solvents. It was found that acetone, the lower dielectric constant solvent studied, shows the higher interaction energy. In both vacuum neutral, zwitterion-NaCl, and vacuum positive, zwitterion-Na+, molecular complexes the interaction of the cocamidopropyl hydroxysultaine pairs is less strong than cocamidopropyl betaine ones.
Collapse
Affiliation(s)
- David-Aaron Nieto-Alvarez
- Instituto Mexicano Del Petróleo, Eje Central Lázaro Cárdenas Norte 152, San Bartolo Atepehuacán, Ciudad de México, 07730, Mexico.
| | - José-Manuel Martínez-Magadán
- Instituto Mexicano Del Petróleo, Eje Central Lázaro Cárdenas Norte 152, San Bartolo Atepehuacán, Ciudad de México, 07730, Mexico.
| | - Ricardo Cerón-Camacho
- CONACyT-Instituto Mexicano Del Petróleo, Eje Central Lázaro Cárdenas Norte 152, Col. San Bartolo Atepehuacán, Ciudad de México, 07730, Mexico
| | - Ana-Graciela Servín-Nájera
- Instituto Mexicano Del Petróleo, Eje Central Lázaro Cárdenas Norte 152, San Bartolo Atepehuacán, Ciudad de México, 07730, Mexico
| | - Rodolfo Cisneros-Dévora
- CONACyT-Instituto Mexicano Del Petróleo, Eje Central Lázaro Cárdenas Norte 152, Col. San Bartolo Atepehuacán, Ciudad de México, 07730, Mexico
| | - Luis-Silvestre Zamudio-Rivera
- Instituto Mexicano Del Petróleo, Eje Central Lázaro Cárdenas Norte 152, San Bartolo Atepehuacán, Ciudad de México, 07730, Mexico.
| |
Collapse
|
14
|
Pan L, Zhai G, Yang X, Yu H, Cheng C. Thermosensitive Microgels-Decorated Magnetic Graphene Oxides for Specific Recognition and Adsorption of Pb(II) from Aqueous Solution. ACS OMEGA 2019; 4:3933-3945. [PMID: 31459602 PMCID: PMC6648301 DOI: 10.1021/acsomega.8b03539] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 01/24/2019] [Indexed: 06/09/2023]
Abstract
Herein, we report a novel type of smart graphene oxide nanocomposites (MGO@PNB) with excellent magnetism and high thermosensitive ion-recognition selectivity of lead ions (Pb2+). The MGO@PNB are fabricated by immobilizing superparamagnetic Fe3O4 nanoparticles (NPs) and poly(N-isopropylacrylamide-co-benzo-18-crown-6 acrylamide) thermosensitive microgels (PNB) onto graphene oxide (GO) nanosheets using a simple one-step solvothermal method and mussel-inspired polydopamine chemistry. The PNB are composed of cross-linked poly(N-isopropylacrylamide) (PNIPAM) chains with numerous appended 18-crown-6 units. The 18-crown-6 units serve as hosts that can selectively recognize and capture Pb2+ from aqueous solution, and the PNIPAM chains act as a microenvironmental actuator for the inclusion constants of 18-crown-6/Pb2+ host-guest complexes. The loaded Fe3O4 NPs endow the MGO@PNB with convenient magnetic separability. The fabricated MGO@PNB demonstrate remarkably high ion-recognition selectivity of Pb2+ among the coexisting metal ions because of the formation of stable 18-crown-6/Pb2+ inclusion complexes. Most interestingly, the MGO@PNB show excellent thermosensitive adsorption ability toward Pb2+ due to the incorporation of PNIPAM functional chains on the GO. Further thermodynamic studies indicate that the adsorption of Pb2+ onto the MGO@PNB is a spontaneous and endothermic process. The adsorption kinetics and isotherm data can be well described by the pseudo-second-order kinetic model and the Langmuir isotherm model, respectively. Most importantly, the Pb2+-loaded MGO@PNB can be more easily regenerated by alternatively washing with hot/cold water than the commonly used regeneration methods. Such multifunctional graphene oxide nanocomposites could be used for specific recognition and removal of Pb2+ from water environment.
Collapse
Affiliation(s)
| | | | - Xiaorong Yang
- College of Chemistry and
Environment Protection Engineering, Southwest
Minzu University, No. 16 South Section 4, Yihuan Road, Chengdu, Sichuan 610041, P. R. China
| | - Hairong Yu
- College of Chemistry and
Environment Protection Engineering, Southwest
Minzu University, No. 16 South Section 4, Yihuan Road, Chengdu, Sichuan 610041, P. R. China
| | - Changjing Cheng
- College of Chemistry and
Environment Protection Engineering, Southwest
Minzu University, No. 16 South Section 4, Yihuan Road, Chengdu, Sichuan 610041, P. R. China
| |
Collapse
|
15
|
Luo Z, Deng Y, Li X, Zhang Q, Wu J, Qi Z, Jin L, Dong S. LCST behavior controlled by size-matching selectivity from low molecular weight monomer systems. NEW J CHEM 2019. [DOI: 10.1039/c9nj00846b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
LCST behavior was controlled by crown ether–cation recognition motifs via size-matching selectivity.
Collapse
Affiliation(s)
- Zheng Luo
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Yan Deng
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Xing Li
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Qiao Zhang
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- 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
- 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
- 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
- P. R. China
| | - Shengyi Dong
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| |
Collapse
|
16
|
Ehni P, Guy K, Ebert M, Beardsworth S, Bader K, Forschner R, Bühlmeyer A, Dumait N, Roiland C, Molard Y, Laschat S. Luminescent liquid crystalline hybrid materials by embedding octahedral molybdenum cluster anions with soft organic shells derived from tribenzo[18]crown-6. Dalton Trans 2018; 47:14340-14351. [PMID: 30187902 DOI: 10.1039/c8dt03254h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Crown ethers and their derivatives are versatile building blocks for the design of supramolecular materials. They can be functionalized at will and are well known for their abilities to complex with alkali cations. Here, we show that emissive lanthanide free hybrid materials can be generated by using such building blocks. The organic tribenzo[18]crown-6 central core was functionalized via six-fold Suzuki cross-coupling as a key reaction with three o-terphenyl units which could be converted into their corresponding triphenylenes by the Scholl reaction, leading to novel liquid-crystalline columnar materials. Selected tribenzo[18]crown-6 o-terphenyls could interact with emissive ternary metal cluster compound salts to generate hybrid materials combining the properties of both moieties. Due to synergistic effects and despite the anisometry of the cluster compounds, individual properties such as liquid-crystalline phase stability of the organic part and emission abilities of its inorganic counter-part are enhanced in the hybrid compounds.
Collapse
Affiliation(s)
- Philipp Ehni
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Wang DM, Aso Y, Ohara H, Tanaka T. Synthesis and Characterization of Alkali Metal Ion-Binding Copolymers Bearing Dibenzo-24-crown-8 Ether Moieties. Polymers (Basel) 2018; 10:polym10101095. [PMID: 30961020 PMCID: PMC6403618 DOI: 10.3390/polym10101095] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 09/28/2018] [Accepted: 09/28/2018] [Indexed: 11/20/2022] Open
Abstract
Dibenzo-24-crown-8 (DB24C8)-bearing copolymers were synthesized by radical copolymerization using a DB24C8-carrying acrylamide derivative and N-isopropylacrylamide monomers. The cloud point of the resulting copolymers changed in aqueous solution in the presence of cesium ions. In addition, the 1H NMR signals of DB24C8-bearing copolymers shifted in the presence of alkali metal. This shift was more pronounced following the addition of Cs+ compared to Rb+, K+, Na+, and Li+ ions due to recognition of the Cs+ ion by DB24C8.
Collapse
Affiliation(s)
- Da-Ming Wang
- Department of Biobased Materials Science, Graduate School of Science and Technology, Kyoto Institute of Technology, Kyoto 606-8585, Japan.
| | - Yuji Aso
- Department of Biobased Materials Science, Graduate School of Science and Technology, Kyoto Institute of Technology, Kyoto 606-8585, Japan.
| | - Hitomi Ohara
- Department of Biobased Materials Science, Graduate School of Science and Technology, Kyoto Institute of Technology, Kyoto 606-8585, Japan.
| | - Tomonari Tanaka
- Department of Biobased Materials Science, Graduate School of Science and Technology, Kyoto Institute of Technology, Kyoto 606-8585, Japan.
| |
Collapse
|
18
|
Fernández-Figueiras A, Lucio-Martínez F, Munín-Cruz P, Ortigueira JM, Polo-Ces P, Reigosa F, Pereira MT, Vila JM. From Chemical Serendipity to Translational Chemistry: New Findings in the Reactivity of Palladacycles. ChemistryOpen 2018; 7:754-763. [PMID: 30338200 PMCID: PMC6173371 DOI: 10.1002/open.201800036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Indexed: 02/04/2023] Open
Abstract
In the world of science, in particular the section concerning the field of chemistry, when the results encountered during the experiment do not meet our expectations, our shrewdness may play an important role to open up new unexplored fields that could be much more interesting than what we were seeking. In those cases, our research undergoes an unforeseen shift, delivering novel and challenging results that may altogether alter our point of view and our future work. We have then struck serendipity. Specifically, in our investigation linked to palladacycles we have found that the new trends in their reactivity, as well as in their structure, have been, in many cases, related to this experience, broadening our research scope within this field. Herein, we describe our most relevant findings, which have shed new light upon the reactivity of palladacycles, thus opening new routes that lead to novel unexpected structures.
Collapse
Affiliation(s)
- Adolfo Fernández-Figueiras
- Department of Inorganic Chemistry, Facultade de Química Universidade de Santiago de Compostela 15782 Santiago de Compostela Galicia Spain
| | - Fátima Lucio-Martínez
- Department of Inorganic Chemistry, Facultade de Química Universidade de Santiago de Compostela 15782 Santiago de Compostela Galicia Spain
| | - Paula Munín-Cruz
- Department of Inorganic Chemistry, Facultade de Química Universidade de Santiago de Compostela 15782 Santiago de Compostela Galicia Spain
| | - Juan M Ortigueira
- Department of Inorganic Chemistry, Facultade de Ciencias Universidade de Santiago de Compostela 27002 Lugo Galicia Spain
| | - Paula Polo-Ces
- Department of Inorganic Chemistry, Facultade de Química Universidade de Santiago de Compostela 15782 Santiago de Compostela Galicia Spain
| | - Francisco Reigosa
- Department of Inorganic Chemistry, Facultade de Química Universidade de Santiago de Compostela 15782 Santiago de Compostela Galicia Spain
| | - M Teresa Pereira
- Department of Inorganic Chemistry, Facultade de Química Universidade de Santiago de Compostela 15782 Santiago de Compostela Galicia Spain
| | - José M Vila
- Department of Inorganic Chemistry, Facultade de Química Universidade de Santiago de Compostela 15782 Santiago de Compostela Galicia Spain
| |
Collapse
|
19
|
Martyanov TP, Kudrevatykh AA, Strelnikov IG, Klimenko LS, Korchagin DV, Chernyak AV, Ushakov EN. Influence of peripheral substituents on the stability of sandwich-type complexes of crown ether-containing anthraquinoneimines. Supramol Chem 2018. [DOI: 10.1080/10610278.2018.1479526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Timofey P. Martyanov
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Russian Federation
| | | | - Igor G. Strelnikov
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Russian Federation
- Institute of Chemistry, Saint Petersburg State University, St. Petersburg, Russian Federation
| | | | - Denis V. Korchagin
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Russian Federation
| | - Alexander V. Chernyak
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Russian Federation
- Science Center in Chernogolovka, Russian Academy of Sciences, Chernogolovka, Russian Federation
| | - Evgeny N. Ushakov
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Russian Federation
| |
Collapse
|
20
|
Wang L, Li X, Zhang Q, Luo Z, Deng Y, Yang W, Dong S, Wang QA, Han C. Supramolecular control over pillararene-based LCST phase behaviour. NEW J CHEM 2018. [DOI: 10.1039/c8nj01366g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Based on the supramolecular interactions between pillar[5]arenes and ionic liquids, supramolecular control was successfully introduced into thermo-responsive systems to adjust LCST phase behaviour in water.
Collapse
Affiliation(s)
- Li Wang
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Xing Li
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Qiao Zhang
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Zheng Luo
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Yan Deng
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Wen Yang
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Shengyi Dong
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Qiu-an Wang
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Chengyou Han
- Department of Chemistry
- College of Science
- China University of Petroleum (East China)
- Qingdao
- China
| |
Collapse
|
21
|
Büning D, Ennen-Roth F, Walter SV, Hennecke T, Ulbricht M. Potassium-sensitive poly(N-isopropylacrylamide)-based hydrogels for sensor applications. Polym Chem 2018. [DOI: 10.1039/c8py00490k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In situcrosslinking polymerization of potassium sensitive hydrogels for advancedin vivosensor applications is studied in detail.
Collapse
Affiliation(s)
- Dominic Büning
- Lehrstuhl für Technische Chemie II
- Universität Duisburg-Essen
- 45141 Essen
- Germany
| | - Franka Ennen-Roth
- Lehrstuhl für Technische Chemie II
- Universität Duisburg-Essen
- 45141 Essen
- Germany
| | - Sarah Verena Walter
- Lehrstuhl für Technische Chemie II
- Universität Duisburg-Essen
- 45141 Essen
- Germany
| | - Tobias Hennecke
- Lehrstuhl für Technische Chemie II
- Universität Duisburg-Essen
- 45141 Essen
- Germany
| | - Mathias Ulbricht
- Lehrstuhl für Technische Chemie II
- Universität Duisburg-Essen
- 45141 Essen
- Germany
| |
Collapse
|
22
|
You XR, Ju XJ, He F, Wang Y, Liu Z, Wang W, Xie R, Chu LY. Polymersomes with Rapid K +-Triggered Drug-Release Behaviors. ACS APPLIED MATERIALS & INTERFACES 2017; 9:19258-19268. [PMID: 28514157 DOI: 10.1021/acsami.7b05701] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A novel type of smart polymersomes with rapid K+-triggered drug-release properties is developed in this work. Block copolymers with biocompatible poly(ethylene glycol) (PEG) as the hydrophilic block and poly(N-isopropylacrylamide-co-benzo-18-crown-6-acrylamide) (PNB) copolymer as the K+-responsive block are successfully synthesized. Because of the presence of 18-crown-6 units, the PEG-b-PNB block copolymers exhibit excellent K+-dependent phase-transition behaviors, which show a hydrophilic-hydrophobic state in simulated extracellular fluid and present a hydrophilic-hydrophilic state in simulated intracellular fluid. Polymersomes with regular spherical shape and good monodispersity are prepared by the self-assembly of the PEG-b-PNB block copolymers. Both hydrophilic fluorescein isothiocyanate-dextran and hydrophobic doxorubicin are selected as model drugs and are successfully encapsulated into the PEG-b-PNB polymersomes. After being placed in a simulated intracellular fluid with high K+ concentration, the PEG-b-PNB polymersomes immediately disassemble accompanied by the rapid and complete release of drugs. Such K+-responsive polymersomes with the desired drug-release properties provide a novel strategy for advanced intracellular drug delivery and release, which can enhance the safety and efficacy of cancer therapy.
Collapse
Affiliation(s)
- Xiang-Ru You
- School of Chemical Engineering and ‡State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, P. R. China
| | - Xiao-Jie Ju
- School of Chemical Engineering and ‡State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, P. R. China
| | - Fan He
- School of Chemical Engineering and ‡State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, P. R. China
| | - Yuan Wang
- School of Chemical Engineering and ‡State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, P. R. China
| | - Zhuang Liu
- School of Chemical Engineering and ‡State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, P. R. China
| | - Wei Wang
- School of Chemical Engineering and ‡State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, P. R. China
| | - Rui Xie
- School of Chemical Engineering and ‡State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, P. R. China
| | - Liang-Yin Chu
- School of Chemical Engineering and ‡State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, P. R. China
| |
Collapse
|
23
|
Han X, Li Z, Xu Z, Zhao Z, Liu SH, Yin J. Construction of Crown Ether-Stoppering [3]Rotaxanes Based on N
-Hetero Crown Ether Host. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201600878] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xie Han
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education; College of Chemistry, Central China Normal University; Wuhan Hubei 430079 China
| | - Ziyong Li
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education; College of Chemistry, Central China Normal University; Wuhan Hubei 430079 China
- College of Food and Drug, Luoyang Normal University; Luoyang Henan 471022 China
| | - Zhiqiang Xu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education; College of Chemistry, Central China Normal University; Wuhan Hubei 430079 China
| | - Zhiyong Zhao
- College of Chemical Engineering and Technology; Wuhan University of Science and Technology; Wuhan Hubei 430081 China
| | - Sheng Hua Liu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education; College of Chemistry, Central China Normal University; Wuhan Hubei 430079 China
| | - Jun Yin
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education; College of Chemistry, Central China Normal University; Wuhan Hubei 430079 China
| |
Collapse
|
24
|
Ke Q, Sun T, Cheng H, Chen H, Liu X, Wei X, Wang S. Targeted Synthesis of Ultrastable High-Silica RHO Zeolite Through Alkali Metal-Crown Ether Interaction. Chem Asian J 2017; 12:1043-1047. [DOI: 10.1002/asia.201700303] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 04/03/2017] [Indexed: 11/05/2022]
Affiliation(s)
- Quanli Ke
- Dalian National Laboratory for Clean Energy; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 P. R. China
- University of Chinese Academy of Sciences; 19A Yuquan Road Beijing 100049 P.R. China
| | - Tianjun Sun
- Dalian National Laboratory for Clean Energy; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 P. R. China
| | - Hao Cheng
- Dalian National Laboratory for Clean Energy; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 P. R. China
| | - Haijun Chen
- Department of Electronics; Nankai University; 94 Weijin Road Tianjin 300071 P.R. China
| | - Xiaowei Liu
- Dalian National Laboratory for Clean Energy; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 P. R. China
- University of Chinese Academy of Sciences; 19A Yuquan Road Beijing 100049 P.R. China
| | - Xiaoli Wei
- Dalian National Laboratory for Clean Energy; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 P. R. China
- University of Chinese Academy of Sciences; 19A Yuquan Road Beijing 100049 P.R. China
| | - Shudong Wang
- Dalian National Laboratory for Clean Energy; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 P. R. China
| |
Collapse
|
25
|
Synthesis and unusual response to potassium of bipyridinium-benzocrown ether conjugate. Bioorg Med Chem Lett 2017; 27:2083-2086. [DOI: 10.1016/j.bmcl.2017.03.087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 03/10/2017] [Accepted: 03/29/2017] [Indexed: 11/18/2022]
|
26
|
Lucio-Martínez F, Bermúdez B, Ortigueira JM, Adams H, Fernández A, Pereira MT, Vila JM. A Highly Effective Strategy for Encapsulating Potassium Cations in Small Crown Ether Rings on a Dinuclear Palladium Complex. Chemistry 2017; 23:6255-6258. [PMID: 28301065 DOI: 10.1002/chem.201700597] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Fátima Lucio-Martínez
- Departamento de Química Inorgánica; Universidade de Santiago de Compostela; Avenida das Ciencias s/n 15782 Santiago de Compostela Spain
| | - Brais Bermúdez
- Departamento de Química Inorgánica; Universidade de Santiago de Compostela; Avenida das Ciencias s/n 15782 Santiago de Compostela Spain
| | - Juan M. Ortigueira
- Departamento de Química Inorgánica; Universidade de Santiago de Compostela; Avenida das Ciencias s/n 15782 Santiago de Compostela Spain
| | - Harry Adams
- Departament of Chemistry; The University of Sheffield; Sheffield S3 7HF UK
| | - Alberto Fernández
- Departamento de Química Fundamental and Centro de Investigacións Científicas Avanzadas (CICA); Facultade de Ciencias; Universidade da Coruña; 15071 A Coruña Spain
| | - M. Teresa Pereira
- Departamento de Química Inorgánica; Universidade de Santiago de Compostela; Avenida das Ciencias s/n 15782 Santiago de Compostela Spain
| | - José M. Vila
- Departamento de Química Inorgánica; Universidade de Santiago de Compostela; Avenida das Ciencias s/n 15782 Santiago de Compostela Spain
| |
Collapse
|
27
|
Yu HR, Hu JQ, Liu Z, Ju XJ, Xie R, Wang W, Chu LY. Ion-recognizable hydrogels for efficient removal of cesium ions from aqueous environment. JOURNAL OF HAZARDOUS MATERIALS 2017; 323:632-640. [PMID: 27776870 DOI: 10.1016/j.jhazmat.2016.10.024] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 10/09/2016] [Accepted: 10/12/2016] [Indexed: 06/06/2023]
Abstract
At present, selective and efficient removal of cesium ions (Cs+) from nuclear waste is of significant importance but still challenging. In this study, an easy-to-get and low-cost hydrogel adsorbent has been developed for effective adsorption and removal of Cs+ from aqueous environment. The novel Cs+-recognizable poly(acrylic acid-co-benzo-18-crown-6-acrylamide) (poly(AAc-co-B18C6Am)) hydrogel is specifically designed with a synergistic effect, in which the AAc units are designed to attract Cs+ via electrostatic attraction and the B18C6Am units are designed to capture the attracted Cs+ by forming stable 2:1 "sandwich" complexes. The poly(AAc-co-B18C6Am) hydrogels are simply synthesized by thermally initiated free-radical copolymerization and display excellent Cs+ adsorption from commonly coexisting metal ions. Important parameters affecting the adsorption are investigated comprehensively, and the adsorption kinetics and adsorption isotherms are also discussed systematically. The poly(AAc-co-B18C6Am) hydrogels exhibit rapid Cs+ adsorption within 30min and the adsorption process is governed by the pseudo-second order model. Adsorption isotherm results demonstrate that the equilibrium data are well fitted by the Langmuir isotherm model, indicating that the Cs+ adsorption is probably a monolayer adsorption process. Such Cs+-recognizable hydrogel materials based on the host-guest complexation are promising as efficient and feasible candidates for adsorption and removal of radioactive Cs+ from nuclear contaminants.
Collapse
Affiliation(s)
- Hai-Rong Yu
- School of Chemical Engineering, Sichuan University, No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan, 610065, PR China; College of Chemistry and Environment Protection Engineering, Southwest University for Nationalities, No. 16, Southern 4 Section, Yihuan Road, Chengdu, Sichuan, 610041, PR China
| | - Jia-Qi Hu
- School of Chemical Engineering, Sichuan University, No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan, 610065, PR China
| | - Zhuang Liu
- School of Chemical Engineering, Sichuan University, No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan, 610065, PR China.
| | - Xiao-Jie Ju
- School of Chemical Engineering, Sichuan University, No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan, 610065, PR China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China
| | - Rui Xie
- School of Chemical Engineering, Sichuan University, No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan, 610065, PR China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China
| | - Wei Wang
- School of Chemical Engineering, Sichuan University, No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan, 610065, PR China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China
| | - Liang-Yin Chu
- School of Chemical Engineering, Sichuan University, No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan, 610065, PR China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing, Jiangsu 211816, PR China.
| |
Collapse
|
28
|
Krishnakumar R, Swathi RS. Tunable Azacrown-Embedded Graphene Nanomeshes for Ion Sensing and Separation. ACS APPLIED MATERIALS & INTERFACES 2017; 9:999-1010. [PMID: 27997113 DOI: 10.1021/acsami.6b10528] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Remarkable selectivity with which crown ethers served as macrocyclic hosts for various guest species has led to numerous investigations on structure-specific interactions. Successful fabrication of graphene nanomeshes has opened up a plethora of avenues for sensing and separation applications. Embedding crown ether backbones in graphene frameworks can therefore be an interesting strategy for exploring the advantages offered by crown ether backbones, yet having the properties of graphene-based materials. Motivated by the recent success in fabrication of crown ether-based graphene nanopores, herein we investigate their performance toward ion sensing and separation using electronic structure methods. The effect of topology and electronic properties of the nanopore are probed by considering a series of oxygen-based and nitrogen-based graphene crown ethers (crown-n; n = 1-6). Our computations have revealed the excellent alkali ion binding properties of azacrown-based graphene nanomeshes over conventional oxygen crown-based graphene nanomeshes and normal crown ethers. Selectivity in ion transmission through the nanomeshes is demonstrated by employing graphene crown ethers [crown-n (n = 4-6)]. To the best of our knowledge, this article is the first report on azacrown-based graphene nanomeshes and their possible applications in ion sensing and separation, an aspect that we hope will be demonstrated in experiments soon.
Collapse
Affiliation(s)
- Rohini Krishnakumar
- School of Chemistry, Indian Institute of Science Education and Research , Thiruvananthapuram, Kerala 695016, India
| | - Rotti Srinivasamurthy Swathi
- School of Chemistry, Indian Institute of Science Education and Research , Thiruvananthapuram, Kerala 695016, India
| |
Collapse
|
29
|
Banik D, Roy A, Kundu N, Sarkar N. Modulation of the Excited-State Dynamics of 2,2′-Bipyridine-3,3′-diol in Crown Ethers: A Possible Way To Control the Morphology of a Glycine Fibril through Fluorescence Lifetime Imaging Microscopy. J Phys Chem B 2016; 120:11247-11255. [PMID: 27709952 DOI: 10.1021/acs.jpcb.6b07524] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Debasis Banik
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Arpita Roy
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Niloy Kundu
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Nilmoni Sarkar
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| |
Collapse
|
30
|
Wei YY, Liu Z, Ju XJ, Shi K, Xie R, Wang W, Cheng Z, Chu LY. Gamma-Cyclodextrin-Recognition-Responsive Characteristics of Poly(N-isopropylacrylamide)-Based Hydrogels with Benzo-12-crown-4 Units as Signal Receptors. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600386] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yun-Yan Wei
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
| | - Zhuang Liu
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
| | - Xiao-Jie Ju
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
- State Key Laboratory of Polymer Materials Engineering; Sichuan University; Chengdu Sichuan 610065 China
| | - Kun Shi
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
| | - Rui Xie
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
- State Key Laboratory of Polymer Materials Engineering; Sichuan University; Chengdu Sichuan 610065 China
| | - Wei Wang
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
- State Key Laboratory of Polymer Materials Engineering; Sichuan University; Chengdu Sichuan 610065 China
| | - Zhengdong Cheng
- Guangdong Provincial Key Laboratory on Functional Soft Condensed Matter; Guangdong University of Technology; Guangzhou Guangdong 510006 China
- Artie-McFerrin Department of Chemical Engineering; Texas A&M University; College Station TX 77843-3122 USA
| | - Liang-Yin Chu
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
- State Key Laboratory of Polymer Materials Engineering; Sichuan University; Chengdu Sichuan 610065 China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM); Nanjing Jiangsu 211816 China
| |
Collapse
|
31
|
Jiang MY, Ju XJ, Deng K, Fan XX, He XH, Wu F, He F, Liu Z, Wang W, Xie R, Chu LY. The microfluidic synthesis of composite hollow microfibers for K+-responsive controlled release based on a host–guest system. J Mater Chem B 2016; 4:3925-3935. [DOI: 10.1039/c6tb00333h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Composite PLGA hollow microfibers with K+-responsive controlled-release characteristics are developed for drug delivery.
Collapse
|
32
|
Gilles A, Barboiu M. Highly Selective Artificial K(+) Channels: An Example of Selectivity-Induced Transmembrane Potential. J Am Chem Soc 2015; 138:426-32. [PMID: 26692073 DOI: 10.1021/jacs.5b11743] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Natural KcsA K(+) channels conduct at high rates with an extraordinary selectivity for K(+) cations, excluding the Na(+) or other cations. Biomimetic artificial channels have been designed in order to mimick the ionic activity of KcSA channels, but simple artificial systems presenting high K(+)/Na(+) selectivity are rare. Here we report an artificial ion channel of H-bonded hexyl-benzoureido-15-crown-5-ether, where K(+) cations are highly preferred to Na(+) cations. The K(+)-channel conductance is interpreted as arising in the formation of oligomeric highly cooperative channels, resulting in the cation-induced membrane polarization and enhanced transport rates without or under pH-active gradient. These channels are selectively responsive to the presence of K(+) cations, even in the presence of a large excess of Na(+). From the conceptual point of view, these channels express a synergistic adaptive behavior: the addition of the K(+) cation drives the selection and the construction of constitutional polarized ion channels toward the selective conduction of the K(+) cation that promotes their generation in the first place.
Collapse
Affiliation(s)
- Arnaud Gilles
- Adaptive Supramolecular Nanosystems Group, Institut Européen des Membranes, ENSCM-UMII-CNRS UMR-5635 , Place Eugène Bataillon, CC 047, F-34095 Montpellier, France
| | - Mihail Barboiu
- Adaptive Supramolecular Nanosystems Group, Institut Européen des Membranes, ENSCM-UMII-CNRS UMR-5635 , Place Eugène Bataillon, CC 047, F-34095 Montpellier, France.,MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional materials, School of Chemistry and Chemical Engineering, Sun Yat-Sen University , Guangzhou 510275, China
| |
Collapse
|
33
|
Yuan H, Ying J, Deng P, Chen P, Shi J, Liu Y, Gao X, Zhao Y. Specific interactions of leucine with disaccharides by electrospray ionization mass spectrometry: application to rapid differentiation of disaccharide isomers in combination with statistical analysis. Analyst 2015; 140:7965-73. [PMID: 26514183 DOI: 10.1039/c5an01735a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The identification of carbohydrate isomers, including mono units, linkage positions and anomeric configurations, remains an arduous subject. In this study, the natural amino acid leucine (Leu) was found to specifically interact with cellobiose (Cello) to form a series of potassium adducts as [Cello + Leu + K](+), [Cello + 2Leu + K](+), and [2Cello + Leu + K](+) in the gas phase using mass spectrometry. By using CID-MS/MS, these complexes produced specific fragmentation patterns from the sugar backbone cleavage instead of non-covalent interactions. Moreover, their fragment distributions were dependent on the ratios of Cello-to-Leu in the complexes and the fragmentation pathways of potassium-cationized disaccharides (Dis) were remarkably changed with leucine binding. It should be pointed out that the ternary complex [2Cello + AA + K](+) was unique for leucine among all the twenty natural amino acids. The [2Dis + Leu + K](+) complex produced the most informative fragments by tandem mass spectrometry, which was successfully applied for rapid and efficient discrimination of twelve glucose-containing disaccharide isomers in combination with statistical analyses including PCA and OPLS-DA. The methodology developed here not only provides a novel analytical approach for the differentiation of disaccharide isomers, but also brings new sight towards the interactions of amino acids with disaccharides.
Collapse
Affiliation(s)
- Hang Yuan
- Department of Chemical Biology, College of Chemistry and Chemical Engineering, Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen, Fujian 361005, China.
| | | | | | | | | | | | | | | |
Collapse
|