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Rafaqat S, Ali N, Torres C, Rittmann B. Recent progress in treatment of dyes wastewater using microbial-electro-Fenton technology. RSC Adv 2022; 12:17104-17137. [PMID: 35755587 PMCID: PMC9178700 DOI: 10.1039/d2ra01831d] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 05/02/2022] [Indexed: 01/24/2023] Open
Abstract
Globally, textile dyeing and manufacturing are one of the largest industrial units releasing huge amount of wastewater (WW) with refractory compounds such as dyes and pigments. Currently, wastewater treatment has been viewed as an industrial opportunity for rejuvenating fresh water resources and it is highly required in water stressed countries. This comprehensive review highlights an overall concept and in-depth knowledge on integrated, cost-effective cross-disciplinary solutions for domestic and industrial (textile dyes) WW and for harnessing renewable energy. This basic concept entails parallel or sequential modes of treating two chemically different WW i.e., domestic and industrial in the same system. In this case, contemporary advancement in MFC/MEC (METs) based systems towards Microbial-Electro-Fenton Technology (MEFT) revealed a substantial emerging scope and opportunity. Principally the said technology is based upon previously established anaerobic digestion and electro-chemical (photo/UV/Fenton) processes in the disciplines of microbial biotechnology and electro-chemistry. It holds an added advantage to all previously establish technologies in terms of treatment and energy efficiency, minimal toxicity and sludge waste, and environmental sustainable. This review typically described different dyes and their ultimate fate in environment and recently developed hierarchy of MEFS. It revealed detail mechanisms and degradation rate of dyes typically in cathodic Fenton system under batch and continuous modes of different MEF reactors. Moreover, it described cost-effectiveness of the said technology in terms of energy budget (production and consumption), and the limitations related to reactor fabrication cost and design for future upgradation to large scale application.
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Affiliation(s)
- Shumaila Rafaqat
- Department of Microbiology, Quaid-i-Azam University Islamabad Pakistan
| | - Naeem Ali
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University Islamabad Pakistan
| | - Cesar Torres
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University USA
| | - Bruce Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University USA
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2
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Rather IA, Ali R. Indicator displacement assays: from concept to recent developments. Org Biomol Chem 2021; 19:5926-5981. [PMID: 34143168 DOI: 10.1039/d1ob00518a] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Overcoming the synthetic burden related to covalently connected receptors with appropriate indicators for sensing various analytes via an indicator spacer receptor (ISR) approach, the indicator displacement assay (IDA) seems to be a very sophisticated and versatile supramolecular sensing paradigm, and it has taken the phenomenon of molecular recognition to the next level in the realm of host-guest chemistry. Due to the unavailability of a comprehensive report on what has been done in the last decade in relation to IDAs, we decided to set down this account illustrating diverse indicator displacement assays (IDAs) in detail from the concept stage to recent developments relating to the detection of cationic, anionic, and neutral analytes. The authors conclude this account with future perspectives and highlight the limitations and challenges relating to IDAs which need to be overcome in order to realize the full potential of this popular sensing phenomenon. While we were finalizing our account for publication, a tutorial review by the research groups of Anslyn, Sessler, and Sun was published, which focuses mainly on diverse aspects of the chemistry related to IDAs. As can be seen, our review, besides discussing various basic IDA concepts, has a vast collection of information published in the past decade and hence, hopefully, will be very informative for the supramolecular community. We believe that this work will offer new insights for the construction of novel sensors operating through the IDA approach.
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Affiliation(s)
- Ishfaq Ahmad Rather
- Organic and Supramolecular Functional Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, Jamia Nagar, Okhla, New Delhi 110025, India.
| | - Rashid Ali
- Organic and Supramolecular Functional Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, Jamia Nagar, Okhla, New Delhi 110025, India.
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Léonard E, Fayeulle A. Azo-Dyes-Grafted Oligosaccharides-From Synthesis to Applications. Molecules 2021; 26:3063. [PMID: 34063753 PMCID: PMC8196571 DOI: 10.3390/molecules26113063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 05/18/2021] [Accepted: 05/19/2021] [Indexed: 11/16/2022] Open
Abstract
Azobenzenes are photochromic molecules that possess a large range of applications. Their syntheses are usually simple and fast, and their purifications can be easy to perform. Oligosaccharide is also a wide family of biopolymer constituted of linear chain of saccharides. It can be extracted from biomass, as for cellulose, being the principal constituent of plant cell wall, or it can be enzymatically produced as for cyclodextrins, having properties not far from cellulose. Combining these two materials families can afford interesting applications such as controlled drug-release systems, photochromic liquid crystals, photoresponsive films or even fluorescent indicators. This review will compile the different syntheses of azo-dyes-grafted oligosaccharides, and will show their various applications.
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Affiliation(s)
- Estelle Léonard
- Université de Technologie de Compiègne, ESCOM, TIMR (Integrated Transformations of Renewable Matter), Centre de Recherche Royallieu, CS 60 319, CEDEX, 60203 Compiègne, France;
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Antony N, Unnikrishnan L, Mohanty S, Nayak SK. The imperative role of polymers in enzymatic cholesterol biosensors- an overview. POLYM-PLAST TECH MAT 2019. [DOI: 10.1080/25740881.2019.1576197] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Neethu Antony
- Laboratory for Advanced Research in Polymeric Materials, Central Institute of Plastics Engineering and Technology, Bhubaneswar, Odisha, India
| | - Lakshmi Unnikrishnan
- Laboratory for Advanced Research in Polymeric Materials, Central Institute of Plastics Engineering and Technology, Bhubaneswar, Odisha, India
| | - Smita Mohanty
- Laboratory for Advanced Research in Polymeric Materials, Central Institute of Plastics Engineering and Technology, Bhubaneswar, Odisha, India
| | - Sanjay K. Nayak
- Laboratory for Advanced Research in Polymeric Materials, Central Institute of Plastics Engineering and Technology, Bhubaneswar, Odisha, India
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Neva T, Carmona T, Benito JM, Przybylski C, Ortiz Mellet C, Mendicuti F, García Fernández JM. Dynamic Control of the Self-Assembling Properties of Cyclodextrins by the Interplay of Aromatic and Host-Guest Interactions. Front Chem 2019; 7:72. [PMID: 30873399 PMCID: PMC6401617 DOI: 10.3389/fchem.2019.00072] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Accepted: 01/28/2019] [Indexed: 12/17/2022] Open
Abstract
The presence of a doubly-linked naphthylene clip at the O-2I and O-3II positions in the secondary ring of β-cyclodextrin (βCD) derivatives promoted their self-assembly into head-to-head supramolecular dimers in which the aromatic modules act either as cavity extension walls (if the naphthalene moiety is 1,8-disubstituted) or as folding screens that separate the individual βCD units (if 2,3-disubstituted). Dimer architecture is governed by the conformational properties of the monomer constituents, as determined by NMR, fluorescence, circular dichroism, and computational techniques. In a second supramolecular organization level, the topology of the assembly directs host-guest interactions and, reciprocally, guest inclusion impacts the stability of the supramolecular edifice. Thus, inclusion of adamantane carboxylate, a well-known βCD cavity-fitting guest, was found to either preserve the dimeric arrangement, leading to multicomponent species, or elicit dimer disruption. The ensemble of results highlights the potential of the approach to program self-organization and external stimuli responsiveness of CD devices in a controlled manner while keeping full diastereomeric purity.
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Affiliation(s)
- Tania Neva
- Instituto de Investigaciones Químicas (IIQ), CSIC - University of Sevilla, Sevilla, Spain
| | - Thais Carmona
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Faculty of Chemistry, University of Alcalá, Alcalá de Henares, Madrid, Spain
| | - Juan M Benito
- Instituto de Investigaciones Químicas (IIQ), CSIC - University of Sevilla, Sevilla, Spain
| | - Cédric Przybylski
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, Paris, France
| | - Carmen Ortiz Mellet
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, Seville, Spain
| | - Francisco Mendicuti
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Faculty of Chemistry, University of Alcalá, Alcalá de Henares, Madrid, Spain
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Geng WC, Sun H, Guo DS. Macrocycles containing azo groups: recognition, assembly and application. J INCL PHENOM MACRO 2018. [DOI: 10.1007/s10847-018-0819-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Vurgun N, Nitz M. Highly Functionalized β-Cyclodextrins by Solid-Supported Synthesis. Chemistry 2018; 24:4459-4467. [PMID: 29389050 DOI: 10.1002/chem.201800028] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Indexed: 12/26/2022]
Abstract
Using covalent capture, a high yielding selective mono-functionalization of heptakis-[6-deoxy-6-(2-aminoethylsulfanyl)]-β-CD with a 5-mercaptopentyl functional group has been achieved. Here, we demonstrate the immobilization of the mono-thiol functionalized β-CD on PEGA resin via a disulfide bond, enabling solid-phase elaboration of the remaining six primary amines. To showcase the potential of this method, the amines were elaborated to tripeptides through standard Fmoc-peptide chemistry. A small library of CD-tripeptide conjugates was generated which, when reduced from the solid support, could be tagged at the released thiol with an environmentally sensitive fluorophore. The resulting library of sensors showed potential for the differential sensing of various bile salts. The described methodology provides a rapid and versatile route to synthesize highly functionalized libraries of CD derivatives that may be tailored towards applications in sensing, catalysis, and multivalent displays.
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Affiliation(s)
- Nesrin Vurgun
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
| | - Mark Nitz
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
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Sonzini S, McCune JA, Ravn P, Scherman OA, van der Walle CF. A simple supramolecular assay for drug detection in urine. Chem Commun (Camb) 2017; 53:8842-8845. [PMID: 28731075 DOI: 10.1039/c7cc04081d] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A supramolecular colorimetric assay utilising the macrocyclic host cucurbit[7]uril (CB[7]) with a commercial dye molecule, neutral red (NR), was evaluated as a novel method for drug detection in urine of a model therapeutic peptide drug Octreotide.
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Affiliation(s)
- Silvia Sonzini
- Formulation Sciences, MedImmune Ltd, Granta Park, Cambridge CB21 6GH, UK.
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Antony Muthu Prabhu A, Suresh Kumar GS. Inclusion complexation of phenoxyaliphatic acid derivatives of 3,3'-bis(indolyl)methanes with β-cyclodextrin. J Fluoresc 2014; 24:925-31. [PMID: 24619770 DOI: 10.1007/s10895-014-1373-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Accepted: 02/24/2014] [Indexed: 10/25/2022]
Abstract
The inclusion complexation behavior of phenoxyaliphatic acid derivatives of 3,3'-bis(indolyl)methane (BIMs 1-5) with β-cyclodextrin (β-CD) were investigated in both solution and solid state by means of UV-Visible, fluorescence spectroscopy, FT-IR and (1)H NMR techniques. The nature of the host-guest inclusion complex between BIMs and β-CD has been elucidated. The experimental results confirmed the existence of 1:1 inclusion complex of BIMs with β-CD. The binding constants describing the extent of formation of the complexes have been determined using Benesi-Hildebrand plots using UV-Vis and fluorescence spectroscopy. BIMs exhibited an affinity for β-CD. The spectral studies suggested the phenyl ring along with alkyl substitutions of BIMs is present inside of β-CD cavity.
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Affiliation(s)
- A Antony Muthu Prabhu
- Department of Chemistry, Manonmaniam Sundaranar University, Tirunelveli, 627 012, Tamilnadu, India,
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Ozyilmaz E, Sayin S, Arslan M, Yilmaz M. Improving catalytic hydrolysis reaction efficiency of sol–gel-encapsulated Candida rugosa lipase with magnetic β-cyclodextrin nanoparticles. Colloids Surf B Biointerfaces 2014; 113:182-9. [DOI: 10.1016/j.colsurfb.2013.08.019] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Revised: 08/07/2013] [Accepted: 08/13/2013] [Indexed: 10/26/2022]
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11
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González-Álvarez MJ, Méndez-Ardoy A, Benito JM, García Fernández JM, Mendicuti F. Self-association of a naphthalene-capped-β-cyclodextrin through cooperative strong hydrophobic interactions. J Photochem Photobiol A Chem 2011. [DOI: 10.1016/j.jphotochem.2011.07.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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12
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Alvarez-Parrilla E, Cabrer PR, Singh AP, Al-Soufi W, Meijide F, Núñez ER, Tato JV. Supramolecular Linear Conglomerates Formed by β-Cyclodextrin Dimers and Sodium Deoxycholate. Supramol Chem 2010. [DOI: 10.1080/1061027021000002233] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Emilio Alvarez-Parrilla
- a Departamentos de Química Física y Física Aplicada, Facultad de Ciencias , Universidad de Santiago de Compostela , Lugo, 27002, Spain
| | - Pedro Ramos Cabrer
- a Departamentos de Química Física y Física Aplicada, Facultad de Ciencias , Universidad de Santiago de Compostela , Lugo, 27002, Spain
| | - Anand Pal Singh
- a Departamentos de Química Física y Física Aplicada, Facultad de Ciencias , Universidad de Santiago de Compostela , Lugo, 27002, Spain
| | - Wajih Al-Soufi
- a Departamentos de Química Física y Física Aplicada, Facultad de Ciencias , Universidad de Santiago de Compostela , Lugo, 27002, Spain
| | - Francisco Meijide
- a Departamentos de Química Física y Física Aplicada, Facultad de Ciencias , Universidad de Santiago de Compostela , Lugo, 27002, Spain
| | - Eugenio Rodríguez Núñez
- a Departamentos de Química Física y Física Aplicada, Facultad de Ciencias , Universidad de Santiago de Compostela , Lugo, 27002, Spain
| | - José Vázquez Tato
- a Departamentos de Química Física y Física Aplicada, Facultad de Ciencias , Universidad de Santiago de Compostela , Lugo, 27002, Spain
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13
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Cabrer PR, Álvarez-Parrilla E, Al-Soufi W, Meijide F, Núñez ER, Tato JV. Complexation of Bile Salts by Natural Cyclodextrins. Supramol Chem 2010. [DOI: 10.1080/1061027031000073207] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Pedro Ramos Cabrer
- a Departamentos de Química Física y Física Aplicada, Facultad de Ciencias , Universidad de Santiago de Compostela , Campus de Lugo, Santiago de Compostela, Spain
| | - Emilio Álvarez-Parrilla
- a Departamentos de Química Física y Física Aplicada, Facultad de Ciencias , Universidad de Santiago de Compostela , Campus de Lugo, Santiago de Compostela, Spain
| | - Wajih Al-Soufi
- a Departamentos de Química Física y Física Aplicada, Facultad de Ciencias , Universidad de Santiago de Compostela , Campus de Lugo, Santiago de Compostela, Spain
| | - Francisco Meijide
- a Departamentos de Química Física y Física Aplicada, Facultad de Ciencias , Universidad de Santiago de Compostela , Campus de Lugo, Santiago de Compostela, Spain
| | - Eugenio Rodríguez Núñez
- a Departamentos de Química Física y Física Aplicada, Facultad de Ciencias , Universidad de Santiago de Compostela , Campus de Lugo, Santiago de Compostela, Spain
| | - José Vázquez Tato
- a Departamentos de Química Física y Física Aplicada, Facultad de Ciencias , Universidad de Santiago de Compostela , Campus de Lugo, Santiago de Compostela, Spain
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A highly sensitive probe detecting low pH area of HeLa cells based on rhodamine B modified β-cyclodextrins. Bioorg Med Chem 2009; 17:6015-9. [DOI: 10.1016/j.bmc.2009.06.046] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2009] [Revised: 06/22/2009] [Accepted: 06/23/2009] [Indexed: 11/22/2022]
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Ogoshi T, Harada A. Chemical Sensors Based on Cyclodextrin Derivatives. SENSORS (BASEL, SWITZERLAND) 2008; 8:4961-4982. [PMID: 27873795 PMCID: PMC3705481 DOI: 10.3390/s8084961] [Citation(s) in RCA: 200] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2008] [Revised: 08/20/2008] [Accepted: 08/20/2008] [Indexed: 11/24/2022]
Abstract
This review focuses on chemical sensors based on cyclodextrin (CD) derivatives. This has been a field of classical interest, and is now of current interest for numerous scientists. First, typical chemical sensors using chromophore appended CDs are mentioned. Various "turn-off" and "turn-on" fluorescent chemical sensors, in which fluorescence intensity was decreased or increased by complexation with guest molecules, respectively, were synthesized. Dye modified CDs and photoactive metal ion-ligand complex appended CDs, metallocyclodextrins, were also applied for chemical sensors. Furthermore, recent novel approaches to chemical sensing systems using supramolecular structures such as CD dimers, trimers and cooperative binding systems of CDs with the other macrocycle [2]rotaxane and supramolecular polymers consisting of CD units are mentioned. New chemical sensors using hybrids of CDs with p-conjugated polymers, peptides, DNA, nanocarbons and nanoparticles are also described in this review.
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Affiliation(s)
- Tomoki Ogoshi
- Department of Macromolecular Science, Osaka University / 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
- Department of Chemistry and Chemical Engineering, Graduate School of Natural Science and Technology, Kanazawa University / Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Akira Harada
- Department of Macromolecular Science, Osaka University / 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.
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Zhang QF, Jiang ZT, Guo YX, Li R. Complexation study of brilliant cresyl blue with beta-cyclodextrin and its derivatives by UV-vis and fluorospectrometry. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2008; 69:65-70. [PMID: 17433764 DOI: 10.1016/j.saa.2007.03.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2006] [Revised: 02/20/2007] [Accepted: 03/09/2007] [Indexed: 05/14/2023]
Abstract
The complexation reactions of brilliant cresyl blue (BCB) with beta-cyclodextrin (beta-CD), mono[2-O-(2-hydroxypropyl)]-beta-CD (2-HP-beta-CD), mono[2-O-(2-hydroxyethyl)]-beta-CD (2-HE-beta-CD), and heptakis(2,6-di-methyl) -beta-CD (DM-beta-CD) were investigated using UV-vis and fluorospectrometry. The complexation between BCB and CDs could inhibit the aggregation of BCB molecules and could cause its absorbance at 634nm gradually increasing. The fluorescence of BCB was also enhanced with the addition of CDs. The fluorescence enhancement was more notable in neutral and acidic media than in basic media. Hildebrand-Benesi equation was used to calculate the formation constants of beta-CDs with BCB based on the fluorescence differences in the CDs solution. The stoichiometry ratio was found to be 1:1. The complexing capacities of beta-CD and its three derivatives were compared and the results followed the order: 2-HP-beta-CD>2-HE-beta-CD>DM-beta-CD>beta-CD. The effect of temperature on the formation of BCB-beta-CD inclusion complexes has also been examined. The results revealed that the formation constants decreased with the increase of temperature from 1038.9 to 491.6l/mol. Enthalpy and entropy values were calculated and the values were -25.77kJ/mol and 35.04J/kmol, respectively. The thermodynamic measurements suggest that the inclusive process was enthalpic favor. The release of high-energy water molecules and Van der Waals force played an important role in the inclusive process.
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Affiliation(s)
- Qing-Feng Zhang
- Department of Food Science and Engineering, Tianjin University of Commerce, Tianjin 300134, China
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18
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Kuwabara T, Shiba K, Nakajima H, Ozawa M, Miyajima N, Hosoda M, Kuramoto N, Suzuki Y. Host-guest complexation affected by pH and length of spacer for hydroxyazobenzene-modified cyclodextrins. J Phys Chem A 2007; 110:13521-9. [PMID: 17165879 DOI: 10.1021/jp063892j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Three modified beta-cyclodextrins appended with a hydroxyazobenzene as a dye unit, 1, 2, and 3, each incorporating a different length spacer between the beta-CD and the dye unit with a bis(propyl(oxyethylene)), butylene, and amide bond spacer, respectively, were synthesized in order to investigate their spectroscopic changes induced by pH and host-guest complexation as well as to investigate their conformations and guest-binding properties by means of absorption and induced circular dichroism spectroscopies in aqueous solutions. All hosts accommodated the dye unit in their own CD cavities with an orientation parallel to the CD axis, forming intramolecular complexes. When the pH of the solution changed, the structure changed in response to pH without conformational changes. Existing as the phenol form under acidic condition, they were converted to the yellow phenolate form by dissociation of a proton of the hydroxyl group in the dye unit with increasing pH (pK(a1); 7.62 for 1, 7.44 for 2, 8.00 for 3). Further increase in pH led to the dissociation of the ammonium proton in the secondary amine group in the spacer of 1 and 2 (pK(a2); 8.76 for 1, 8.67 for 2). Upon addition of 1-adamantanol (AN) as a guest, all hosts accommodated AN in their CD cavities, forming 1:1 host-guest inclusion complexes. The complexation phenomena were accompanied with changes in the conformation of the hosts, in which the dye units of 1 and 2 are excluded to outside of the cavity, but not for 3. The dye unit of 3 remained in the cavity, where the guest was also included partly. Therefore, the guest-binding abilities of 1 and 2 were larger than that of 3, which has poor binding ability. The binding constants of 1, 2, and 3 for AN are estimated to be 7400, 1940, and 140 M(-1) at pH 3.2, respectively. However, the guest-binding abilities of 1 and 2 were dependent on the pH of the solution. The ability of 1 under weak alkaline condition was stronger than under acidic or alkaline conditions, while that of 2 increased with increasing pH. Under the condition from neutral to weak alkaline media, 1 and 2 demonstrated color changes from colorless to yellow upon formation of inclusion complexes. When 1-adamantanecarboxylic acid (AC) was used as the charged guest, 1 and 2 bound to AC with a larger binding constant than AN. On the other hand, 1 and 2 bound to 1-adamantineamine (AA) with a smaller binding constant than AN. All these results demonstrate that the complexation phenomena depend on the pH of the solution as well as the length of the spacer of the hosts and that the electrostatic interaction between the host and the guest is also important for forming a stable complex.
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Affiliation(s)
- Tetsuo Kuwabara
- Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 4-3-11 Takeda, Kofu 400-8511 Japan.
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Schofield WCE, McGettrick JD, Badyal JPS. A Substrate-Independent Approach for Cyclodextrin Functionalized Surfaces. J Phys Chem B 2006; 110:17161-6. [PMID: 16928012 DOI: 10.1021/jp0629801] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
6-Amino-6-deoxy-beta-cyclodextrin can be immobilized onto a range of solid surfaces via reaction with a predeposited pulsed plasma poly(glycidyl methacrylate) layer. X-ray photoelectron spectroscopy, infrared spectroscopy, and quartz crystal microbalance measurements have been employed to monitor guest-host interactions between N,N-dimethylformamide or cholic acid and surface-tethered 6-amino-6-deoxy-beta-cyclodextrin barrels.
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Affiliation(s)
- W C E Schofield
- Department of Chemistry, Science Laboratories, Durham University, Durham DH1 3LE, England, UK
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Wu A, Chen Q, Xia K, Hou T, Shen X, Gao H, Xu X. Investigation on photophysical properties of a substituted 3H-indole-modified β-cyclodextrin. J Photochem Photobiol A Chem 2006. [DOI: 10.1016/j.jphotochem.2006.02.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Kao TL, Wang CC, Pan YT, Shiao YJ, Yen JY, Shu CM, Lee GH, Peng SM, Chung WS. Upper Rim Allyl- and Arylazo-Coupled Calix[4]arenes as Highly Sensitive Chromogenic Sensors for Hg2+ Ion. J Org Chem 2005; 70:2912-20. [PMID: 15822949 DOI: 10.1021/jo047880a] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The syntheses and chromogenic properties of calix[4]arenes, carrying 5,17-bisallyl-11,23-bis(p-X-phenyl)azo 3a-c, 5,11,17-triallyl-23-(p-X-phenyl)azo 4a-c, and 5,17-bis(hydroxypropyl)-11,23-bis(p-X-phenyl)azo groups on the upper rims 5a,b, are described. Unexpectedly, UV/vis spectra of the very popular 4-(4-nitrophenyl)azophenol-coupled calix[4]arenes 3c and 4c did not show any shift in lambda(max) when 10 different metal perchlorates were added separately to the host in a methanol-chloroform (v/v = 1/399) cosolvent. In contrast, the absorption spectra of calix[4]arenes with either 4-methoxyphenylazo (3b-5b) or 4-phenylazo (3a-5a) on the upper rim showed substantial bathochromic shifts (Deltalambda = 128-162 nm) upon the addition of soft metal ions (such as Hg(2+), Cr(3+), and Cu(2+)). The 4-(4-methoxyphenyl)azophenol-coupled calix[4]arenes (the 3b-5b series) are found to be highly sensitive for mercury ion (Hg(2+)) among the 10 different metal ions screened. Strong interactions between Hg(2+) ion and the 4-(4-methoxyphenyl)azophenol(s) as well as the p-allyl groups are corroborated by the (1)H NMR studies of 3a,b.Hg(2+) complexes. Furthermore, Job's plots revealed 1:1 binding stoichiometry for all these p-allyl- and arylazo-coupled calix[4]arenes with transition metal ions, and Benesi-Hilderbrand plots were used for the determination of their association constants.
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Affiliation(s)
- Tsui-Lien Kao
- Department of Applied Chemistry, Center for Interdisciplinary Molecular Science, National Chiao Tung University, Hsinchu, Taiwan 30050, R.O.C
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Yuexian F, Yu Y, Shaomin S, Chuan D. Molecular recognition of alpha-cyclodextrin (CD) to choral amino acids based on methyl orange as a molecular probe. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2005; 61:953-959. [PMID: 15683802 DOI: 10.1016/j.saa.2004.06.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2004] [Accepted: 06/07/2004] [Indexed: 05/24/2023]
Abstract
The molecular recognition interaction of alpha-CD to chiral amino acids was investigated by using spectrophotometry based on methyl orange as a molecular probe. The molecular recognition ability depended on the inclusion formation constants. The molecular recognition of alpha-CD to aromatic amino acids was the order: DL-tryptophan > L-tryptophan > L-phenylalanine > L-tyrosine approximately DL-beta-3,4-dihydroxy-phenylalanine; whereas for aliphatic amino acids, the order was: L-iso-leucine > L-leucine approximately L-methionine approximately DL-mehtionine > D-leucine. The effect of temperature on the inclusion interaction was examined and the thermodynamic parameters of inclusion process, delta G, delta H, delta S, were determined. The experimental results indicated that the inclusion process was an exothermic and enthalpy-driven process accompanied with a negative or minor positive entropic contribution. The inclusion interaction between alpha-CD and amino acids satisfied the law of enthalpy-entropy compensation. The compensation temperature was 291 K.
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Affiliation(s)
- Fan Yuexian
- College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China
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25
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Barr L, Easton CJ, Lee K, Lincoln SF. Aminocyclodextrins to facilitate the deprotonation of 4-tert-butyl-α-nitrotoluene. Org Biomol Chem 2005; 3:2990-3. [PMID: 16186929 DOI: 10.1039/b506187c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
6A-Amino-6A-deoxy-beta-cyclodextrin enhances the rate of the deprotonation of 4-tert-butyl-alpha-nitrotoluene. The rate constants for reaction of the cyclodextrin-bound species, kinc = 4 x 10(-3), 9 x 10(-3) and 19 x 10(-3) s(-1), at pH 6.0, 6.5 and 7.0, respectively, in 0.1 mol dm(-3) aqueous phosphate buffer containing 1% methanol at 298 K. These rate constants correspond to a rate acceleration (kinc/kun) of ca. 10 times at each pH. Under the same conditions, 6A-dimethylamino-6A-deoxy-beta-cyclodextrin and 6A-(2-aminoethylamino)-6A-deoxy-beta-cyclodextrin are more effective; at pH 6.0, 6.5 and 7.0, for the former, kinc = 3 x 10(-2), 7 x 10(-2) and 12 x 10(-2) s(-1), whilst for the latter, kinc = 4 x 10(-2), 5 x 10(-2) and 9 x 10(-2) s(-1), respectively. Each cyclodextrin also decreases the pKa of the nitrotoluene, from 6.8 in free solution, to 6.2 when bound. The accelerated deprotonation by 6A-amino-6A-deoxy-beta-cyclodextrin is reflected in the enhanced rates of hydrogen-deuterium exchange of the nitrotoluene in deuterium oxide, and in the conjugate addition of the nitrotoluene to methyl vinyl ketone in aqueous solution.
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Affiliation(s)
- Lorna Barr
- Research School of Chemistry, Institute of Advanced Studies, Australian National University, Canberra, ACT 0200, Australia
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26
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Gao F, Shang YJ, Zhang L, She SK, Wang L. Synthesis of a Novel Fluorescence Probe Modified by β‐Cyclodextrin and Its Application in the Determination for Nucleic Acids at ppb Levels. ANAL LETT 2004. [DOI: 10.1081/al-120035898] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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27
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Liu Y, Zhao YL, Zhang HY, Fan Z, Wen GD, Ding F. Spectrophotometric Study of Inclusion Complexation of Aliphatic Alcohols by β-Cyclodextrins with Azobenzene Tether. J Phys Chem B 2004. [DOI: 10.1021/jp0380024] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Yu Liu
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Yan-Li Zhao
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Heng-Yi Zhang
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Zhi Fan
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Guo-Dong Wen
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Fei Ding
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
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28
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Xiliang G, Yu Y, Guoyan Z, Guomei Z, Jianbin C, Shaomin S. Study on inclusion interaction of piroxicam with beta-cyclodextrin derivatives. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2003; 59:3379-3386. [PMID: 14607235 DOI: 10.1016/s1386-1425(03)00164-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The inclusion behavior of piroxicam (PX) with beta-cyclodextrin (beta-CD), hydroxypropyl-beta-cyclodextrin (HP-beta-CD), and carboxymethyl-beta-cyclodextrin (CM-beta-CD) was investigated by using steady-state fluorescence and nuclear magnetic resonance (NMR) technique. The various factors affecting the inclusion process were examined in detail. The remarkable fluorescence emission enhancement upon addition of CDs suggested that cyclodextrins (CDs) were most suitable for inclusion of the uncharged species of PX. The stoichiometry of the PX-CDs inclusion complexes was 1:1, except for beta-CD where a 1:2 inclusion complex was formed. The formation constants showed the strongest inclusion capacity of beta-CD. NMR showed the inclusion mode of PX with CDs.
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Affiliation(s)
- Guo Xiliang
- Department of Chemistry, College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
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29
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Liu Y, Song Y, Wang H, Zhang HY, Wada T, Inoue Y. Selective binding of steroids by 2,2'-biquinoline-4,4'-dicarboxamide-bridged bis(beta-cyclodextrin): fluorescence enhancement by guest inclusion. J Org Chem 2003; 68:3687-90. [PMID: 12713379 DOI: 10.1021/jo026908k] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel bis(beta-cyclodextrin) was synthesized, and its binding behavior with steroids was investigated to demonstrate that the cooperative co-inclusion of guest and tether by two cyclodextrin moieties is operative to afford the highest molecular selectivity of up to 3.6 for deoxycholate over taurocholate.
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Affiliation(s)
- Yu Liu
- Department of Chemistry and State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China.
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30
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Canada TA, Xue Z. High-basicity determination in mixed water-alcohol solutions by a dual optical sensor approach. Anal Chem 2002; 74:6073-9. [PMID: 12498204 DOI: 10.1021/ac0202987] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The activity of NaOH is known to be significantly affected by the presence of an alcohol in aqueous solutions. A novel linear relationship between (deltaA/deltaC(alcohol)) and C(base) was found in the highly alkaline, mixed H2O-ROH solutions (R = Me, Et, i-Pr). The use of this linear relationship led to a dual-transducer approach to decompose the optical signals of optical base sensors and to give base and alcohol concentrations in concentrated NaOH-H2O-ROH solutions ([OH-] = 0.05-3.6 M). The scope of the new dual-sensor approach was evaluated, and errors in C(base) and C(alcohol) were analyzed. The optical base sensors consist of sol-gel SiO2-ZrO2-organic polymer composites doped with high-pKa indicators. The pKa(s) of the indicators encapsulated in the composite films were determined and found to be affected by the composition of the sol-gel composites. Optical sensors and their uses in multicomponent systems are of intense current interest.( 1-7) In the multicomponent systems, the activity of the analyte and sensor response are often affected by change in ionic strength. For optical sensors that are based on indicator equilibria involving the analyte as their transducing mechanism, such effect is particularly significant. The concentrations of both the analyte and other chemicals affect ionic strength, and the sensor response to concentration of the analyte is thus often indistinguishable from those of other chemicals. An accurate measurement of each component in these multicomponent systems is actively studied. Several approaches have been developed to correct ionic strength in optical sensing for the pH region and solutions of low-to-medium ionic strength. (1-9) We recently reported a dual-transducer approach to measure acid concentrations (2-9 M HCl) in salt-containing, concentrated strong acids such as MClx-HCl (M = Li, Ca, Al) solutions. (10) This approach was shown to reduce the error in C(acid) from, for example,
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Affiliation(s)
- T Andrew Canada
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600, USA
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31
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Abstract
Complex of an anti-cocaine aptamer and the dye diethylthiotricarbocyanine behaves as a colorimetric sensor with attenuation in absorbance at 760 nm for cocaine in the concentration range of 2-600 muM. Mechanistic studies indicate an intermolecular displacement of the dye as the mechanism of action of the sensor. As the dye is insoluble in buffer, cocaine binding can be followed with the unaided eye as displaced dye precipitates and supernatant decolorizes.
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Affiliation(s)
- Milan N Stojanovic
- Division of Clinical Pharmacology and Experimental Therapeutics, Department of Medicine, Columbia University, Box 84, 630 West 168th Street, New York, New York 10032, USA.
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Abstract
Direct electrode transfer between enzyme and the electrode in biosensors requires high efficiency therefore, synthetic replacement for oxygen led to the development of enzyme mediators and modified electrodes in biosensor fabrication. In this context, a number of electron acceptors and complexes have been used. Present paper gives an overview of various methodologies involved in the mediated systems, their merits and wide applications.
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Affiliation(s)
- Asha Chaubey
- Biomolecular Electronics and Conducting Polymer Research Group, National Physical Laboratory, Dr. K.S. Krishnan Marg, New Delhi 110 012, India.
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33
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Kuwabara T, Aoyagi T, Takamura M, Matsushita A, Nakamura A, Ueno A. Heterodimerization of dye-modified cyclodextrins with native cyclodextrins. J Org Chem 2002; 67:720-5. [PMID: 11856011 DOI: 10.1021/jo010696u] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The heterodimerization behavior of dye-modified beta-cyclodextrins (1-6) with native cyclodextrins (CDs) was investigated by means of absorption and induced circular dichroism spectroscopy in an aqueous solution. Three types of azo dye-modified beta-CDs (1-3) show different association behaviors, depending on the positional difference and the electronic character of substituent connected to the CD unit in the dye moiety. p-Methyl red-modified beta-CD (1), which has a 4-(dimethylamino)azobenzene moiety connected to the CD unit at the 4' position by an amido linkage, forms an intramolecular self-complex, inserting the dye moiety in its beta-CD cavity. It also associates with the native alpha-CD by inserting the moiety of 1 into the alpha-CD cavity. The association constants for such heterodimerization are 198 M(-1) at pH 1.00 and 305 M(-1) at pH 6.59, which are larger than the association constant of 1 for beta-CD (43 M(-1) at pH 1.00). Methyl red-modified 2, which has the same dye moiety as that for 1 although its substituent position is different from that of 1, does not associate even with alpha-CD due to the stable self-intramolecular complex, in which the dye moiety is deeply included in its own cavity of beta-CD. Alizarin yellow-modified CD (3), which has an azo dye moiety different from that of 1 and 2, caused a slight spectral variation upon addition of alpha-CD, suggesting that the interaction between 3 and alpha-CD is weak. On the other hand, phenolphthalein-modified beta-CD (4), which forms an intermolecular association complex in its higher concentrations, binds with beta-CD with an association constant of 787 M(-1) at pH 10.80, where 4 exists as the dianion monomer in the absence of beta-CD. p-Nitorophenol-modified beta-CDs (5 and 6), each having p-nitorophenol moieties with a different connecting part with an amido and amidophenyl group, respectively, associated with alpha-CD with association constants of 66 and 16 M(-1) for 5 and 6, respectively. The phenyl unit in the connecting part of 6 may prevent the smooth binding with alpha-CD. All these results suggest that the dye-modified CDs, in which the dye part is not tightly included in its CD cavity, associate with the native CD to form heterodimer composed of two different CD units by inserting the dye moiety into the native CD unit. The resulting heterodimers have a cavity that can bind another appending moiety of host molecules. On this basis, more ordered molecular arrays or the supramolecular hereropolymers can be constructed.
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Affiliation(s)
- Tetsuo Kuwabara
- Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4-3-11 Takeda, Kofu 400-8511, Japan.
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Abstract
Most synthetic sensors are designed with covalent attachment between a receptor and a reporter moiety. In this report, we describe the current progress of our use of noncovalently attached indicators to signal binding of analytes. With these systems, analyte binding leads to indicator displacement from the binding cavity, which in turn yields an optical signal modulation. We include previous examples, the strategies involved in our development, and the advantages as well as disadvantages of this method. Finally, our latest research in this field is briefly presented.
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Affiliation(s)
- S L Wiskur
- Department of Chemistry and Biochemistry, The University of Texas at Austin, Austin, Texas 78712, USA
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35
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36
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Liu Y, Li B, Wada T, Inoue Y. Studies on molecular recognition in supramolecular systems. Part 31: Circular dichroism spectral studies of molecular and chiral recognition of aliphatic alcohols by 6-modified β-cyclodextrins. Tetrahedron 2001. [DOI: 10.1016/s0040-4020(01)00671-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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37
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Sreenivasan K. USE OF DIFFERENTIAL SCANNING CALORIMETRY TO STUDY THE REPLACEMENT OF A GUEST MOLECULE FROM CYCLODEXTRIN–GUEST INCLUSION COMPLEXES. ANAL LETT 2001. [DOI: 10.1081/al-100001581] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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38
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Kim SH, Chu CC. In vitro release behavior of dextran-methacrylate hydrogels using doxorubicin and other model compounds. J Biomater Appl 2000; 15:23-46. [PMID: 10972158 DOI: 10.1106/ml30-fmlg-1hru-7c4b] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
In vitro drug release behavior of doxorubicin, Alizarin Red S, FITC-dextran from photocross-linked dextran-methacrylate hydrogel was studied. The effects of pH of media, degree of substitution (DS) of dextran-methacrylate hydrogel, and molecular weight of model compounds on their release profiles were investigated. Each model compound was successfully incorporated into dextran-methacrylate hydrogel matrix through photopolymerization of the hydrogel precursor. Delayed release of model compounds was observed with these hydrogels having a higher DS. Doxorubicin and Alizarin Red S showed pH-dependent release behavior because of the presence of ionizable groups in their structure. Different types of ionization of doxorubicin and Alizarin Red S resulted in more release into an acidic or alkaline media. As molecular weights of drugs increased, the total amount of released drug at the end of 240 hrs decreased significantly and reached a minimum level as the MW of drugs reached about 10,000. Release of these three model compounds followed simple Fickian diffusion at an early stage of release, i.e., cumulative release of model compounds was proportional to the square root of time. Dextran-methacrylate hydrogel effectively delayed and controlled the release of anticancer antibiotics, doxorubicin.
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Affiliation(s)
- S H Kim
- Department of Textiles, Cornell University, Ithaca, NY 14853-4401, USA
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39
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Asanuma H, Kajiya K, Hishiya T, Komiyama M. Molecular Imprinting of Cyclodextrin in Water for the Recognition of Peptides. CHEM LETT 1999. [DOI: 10.1246/cl.1999.665] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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40
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Kuwabara T, Nakajima H, Nanasawa M, Ueno A. Color Change Indicators for Molecules Using Methyl Red-Modified Cyclodextrins. Anal Chem 1999. [DOI: 10.1021/ac9814041] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tetsuo Kuwabara
- Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4 Takeda, Kofu 400-8511, Japan, and Department of Bioengineering, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
| | - Hiroki Nakajima
- Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4 Takeda, Kofu 400-8511, Japan, and Department of Bioengineering, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
| | - Masato Nanasawa
- Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4 Takeda, Kofu 400-8511, Japan, and Department of Bioengineering, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
| | - Akihiko Ueno
- Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4 Takeda, Kofu 400-8511, Japan, and Department of Bioengineering, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
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41
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D'Annibale A, Regoli R, Sangiorgio P, Ferri T. Preparation and Electrochemical Characterization of a β-Cyclodextrin-Based Chemically Modified Electrode. ELECTROANAL 1999. [DOI: 10.1002/(sici)1521-4109(199906)11:7<505::aid-elan505>3.0.co;2-j] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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42
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Ueno A, Ikeda A, Ikeda H, Ikeda T, Toda F. Fluorescent Cyclodextrins Responsive to Molecules and Metal Ions. Fluorescence Properties and Inclusion Phenomena of Nα-Dansyl-l-lysine-β-cyclodextrin and Monensin-Incorporated Nα-Dansyl-l-lysine-β-cyclodextrin. J Org Chem 1999. [DOI: 10.1021/jo9807870] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Akihiko Ueno
- Department of Bioengineering, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
| | - Akira Ikeda
- Department of Bioengineering, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
| | - Hiroshi Ikeda
- Department of Bioengineering, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
| | - Tsukasa Ikeda
- Department of Bioengineering, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
| | - Fujio Toda
- Department of Bioengineering, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
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43
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Kuwabara T, Takamura M, Matsushita A, Ikeda H, Nakamura A, Ueno A, Toda F. Phenolphthalein-Modified β-Cyclodextrin as a Molecule-Responsive Colorless-to-Color Change Indicator. J Org Chem 1998. [DOI: 10.1021/jo980613i] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tetsuo Kuwabara
- Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4 Takeda, Kofu 400-8511, Japan, Department of Bioengineering, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan, and Tokyo Polytechnic College, 2-32-1 Ogawa-nishi-machi, Kodaira, Tokyo 187-0035, Japan
| | - Makoto Takamura
- Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4 Takeda, Kofu 400-8511, Japan, Department of Bioengineering, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan, and Tokyo Polytechnic College, 2-32-1 Ogawa-nishi-machi, Kodaira, Tokyo 187-0035, Japan
| | - Akiko Matsushita
- Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4 Takeda, Kofu 400-8511, Japan, Department of Bioengineering, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan, and Tokyo Polytechnic College, 2-32-1 Ogawa-nishi-machi, Kodaira, Tokyo 187-0035, Japan
| | - Hiroshi Ikeda
- Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4 Takeda, Kofu 400-8511, Japan, Department of Bioengineering, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan, and Tokyo Polytechnic College, 2-32-1 Ogawa-nishi-machi, Kodaira, Tokyo 187-0035, Japan
| | - Asao Nakamura
- Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4 Takeda, Kofu 400-8511, Japan, Department of Bioengineering, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan, and Tokyo Polytechnic College, 2-32-1 Ogawa-nishi-machi, Kodaira, Tokyo 187-0035, Japan
| | - Akihiko Ueno
- Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4 Takeda, Kofu 400-8511, Japan, Department of Bioengineering, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan, and Tokyo Polytechnic College, 2-32-1 Ogawa-nishi-machi, Kodaira, Tokyo 187-0035, Japan
| | - Fujio Toda
- Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, 4 Takeda, Kofu 400-8511, Japan, Department of Bioengineering, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan, and Tokyo Polytechnic College, 2-32-1 Ogawa-nishi-machi, Kodaira, Tokyo 187-0035, Japan
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44
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Affiliation(s)
- J. A. Howell
- Western Michigan University, Kalamazoo, Michigan 49008
| | - R. E. Sutton
- Kalamazoo Valley Community College, Kalamazoo, Michigan 49009
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