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Cyclodextrins Initiated Ring-Opening Polymerization of Lactide Using 4-dimethylaminopyridine (DMAP) as Catalyst: Study of DMAP/β-CD Inclusion Complex and Access to New Structures. Molecules 2022; 27:molecules27031083. [PMID: 35164347 PMCID: PMC8838909 DOI: 10.3390/molecules27031083] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 01/28/2022] [Accepted: 02/03/2022] [Indexed: 01/30/2023] Open
Abstract
Cyclodextrins (CDs) are cyclic oligosaccharides used in many fields. Grafting polymers onto CDs enables new structures and applications to be obtained. Polylactide (PLA) is a biobased, biocompatible aliphatic polyester that can be grafted onto CDs by -OH-initiated ring-opening polymerization. Using 4-dimethylaminopyridine (DMAP) as an organocatalyst, a quantitative functionalization is reached on native α-, β-, γ- and 2,3-dimethyl- β-cyclodextrins. Narrow molecular weight distributions are obtained with the native CDs (dispersity < 1.1). The DMAP/β-CD combination is used as a case study, and the formation of an inclusion complex (1/1) is shown for the first time in the literature, which is fully characterized by NMR. The inclusion of DMAP into the cavity occurs via the secondary rim of the β-CD and the association constant (Ka) is estimated to be 88.2 M−1. Its use as an initiator for ring-opening polymerization leads to a partial functionalization efficiency, and thus a more hydrophilic β-CD-PLA conjugate than that obtained starting from native β-CD. Polymerization results including also the use of the adamantane/β-CD inclusion complex as an initiator suggest that inclusion of the DMAP catalyst into the CD may not occur during polymerization reactions. Rac-lactide does not form an inclusion complex with β-CD.
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Cucolea EI, Tablet C, Buschmann HJ, Mutihac L. Interactions of cucurbit[7]uril and β-cyclodextrin with some nucleobases. J INCL PHENOM MACRO 2015. [DOI: 10.1007/s10847-015-0544-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Zhang F, Zhao YY, Chen H, Wang XH, Chen Q, He PG. Sensitive fluorescence detection of lysozyme using a tris(bipyridine)ruthenium(ii) complex containing multiple cyclodextrins. Chem Commun (Camb) 2015; 51:6613-6. [DOI: 10.1039/c5cc00428d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new series of metallocyclodextrins with increased fluorescence intensity upon binding with ssDNAs/aptamers has been demonstrated to sensitively detect lysozyme.
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Affiliation(s)
- Fan Zhang
- Department of Chemistry
- East China Normal University
- Shanghai 200241
- P. R. China
| | - Ying-Ying Zhao
- Department of Chemistry
- East China Normal University
- Shanghai 200241
- P. R. China
| | - Hong Chen
- Department of Chemistry
- East China Normal University
- Shanghai 200241
- P. R. China
| | - Xiu-Hua Wang
- Department of Chemistry
- East China Normal University
- Shanghai 200241
- P. R. China
| | - Qiong Chen
- Department of Chemistry
- East China Normal University
- Shanghai 200241
- P. R. China
| | - Pin-Gang He
- Department of Chemistry
- East China Normal University
- Shanghai 200241
- P. R. China
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Badruddoza AZM, Junwen L, Hidajat K, Uddin MS. Selective recognition and separation of nucleosides using carboxymethyl-β-cyclodextrin functionalized hybrid magnetic nanoparticles. Colloids Surf B Biointerfaces 2011; 92:223-31. [PMID: 22177539 DOI: 10.1016/j.colsurfb.2011.11.042] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Revised: 11/24/2011] [Accepted: 11/24/2011] [Indexed: 01/03/2023]
Abstract
A novel magnetic nanoadsorbent (CMCD-APTS-MNPs) containing the superparamagnetic and molecular recognition properties was synthesized by grafting carboxymethyl-β-cyclodextrin (CM-β-CD) on 3-aminopropyltriethoxysile (APTS) modified Fe(3)O(4) nanoparticles. The feasibility of using CMCD-APTS-MNPs as magnetic nanoadsorbent for selective adsorption of adenosine (A) and guanosine (G) based on inclusion and molecular recognition was demonstrated. The as-synthesized magnetic nanoparticles were characterized by TEM, FTIR and TGA analyses. The effects of pH and initial nucleoside concentrations on the adsorption behavior were studied. The complexation of CMCD-APTS-MNPs with both nucleosides was found to follow the Langmuir adsorption isotherm. The CMCD-APTS-MNPs showed a higher adsorption ability and selectivity for G than A under identical experimental conditions, which results from the ability of selective binding and recognition of the immobilized CM-β-CD towards G. The driving force of the separation between G and A is through the different weak interaction with grafted CM-β-CD, i.e., hydrogen bond interaction, which is evidenced by different inclusion equilibrium constants and FTIR analyses of inclusion complexes between grafted cyclodextrin and the guest molecules. Our results indicated that this nanoadsorbent would be a promising tool for easy, fast and selective separation, analysis of nucleosides and nucleotides in biological samples.
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Affiliation(s)
- A Z M Badruddoza
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Singapore
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Dsouza RN, Pischel U, Nau WM. Fluorescent dyes and their supramolecular host/guest complexes with macrocycles in aqueous solution. Chem Rev 2011; 111:7941-80. [PMID: 21981343 DOI: 10.1021/cr200213s] [Citation(s) in RCA: 805] [Impact Index Per Article: 61.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Roy N Dsouza
- School of Engineering and Science, Jacobs University Bremen, Campus Ring 1, D-28759 Bremen, Germany
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Li H, Sun J, Wang Y, Sui X, Sun L, Zhang J, He Z. Structure-based in silico model profiles the binding constant of poorly soluble drugs with β-cyclodextrin. Eur J Pharm Sci 2010; 42:55-64. [PMID: 20979986 DOI: 10.1016/j.ejps.2010.10.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2010] [Revised: 09/26/2010] [Accepted: 10/19/2010] [Indexed: 11/15/2022]
Abstract
Cyclodextrin inclusion complexation technique is the key method to enhance the solubility and absorption of poorly soluble drugs in the early development stage, and thus it is essential to predict the binding constant between drug molecules and cyclodextrin. Structure-based in silico model was constructed for a data set of 86 poorly soluble drugs and used to profile the binding constant of drug-β-cyclodextrin inclusion complex. The stepwise regression was employed to select the optimum subset of the independent variables. The in silico model was built by the multiple linear regression method and validated by the residual analysis, the normal Probability-Probability plot and Williams plot. For the entire data set, the R(2) and Q(2) of the model were 0.78 and 0.67, respectively. The results indicated that the fitted model is robust, stable and satisfies all the prerequisites of the regression models. The chemical space position and important contributors were compared between selected drug molecules and organic compounds available in the literature. It was suggested that the binding behavior of drug molecules with β-CD should differ from that of the common organic compounds. Focusing on structurally diverse drugs, the in silico model can be used as an efficient tool to rapidly screen the drug-β-cyclodextrin inclusion complex stability and to rationally design the new drug delivery system of poorly soluble drugs.
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Affiliation(s)
- Haiyan Li
- Center for Drug Delivery System, Shanghai Institute of Materia Medica, State Key Laboratory of Drug Research, Chinese Academy of Sciences, Shanghai, China
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Bae JR, Kim JK, Lee CW. Complex Formation of Adenosine 3',5'-Cyclic Monophosphate with β-Cyclodextrin: Kinetics and Mechanism by Ultrasonic Relaxation. B KOREAN CHEM SOC 2010. [DOI: 10.5012/bkcs.2010.31.02.442] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Sun Y, Xu L, Xu P, Ma B. Preparation of Levodopa-2, 6-Dimethyl-β-Cyclodextrin Inclusion by Saturation Solution Process. ACTA ACUST UNITED AC 2009; 36:352-9. [DOI: 10.1080/10731190802239032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Li Y, Hu D, Sun Y. Content determination of aniracetam in aniracetam inclusion complex by HPLC. ARTIFICIAL CELLS, BLOOD SUBSTITUTES, AND IMMOBILIZATION BIOTECHNOLOGY 2009; 37:143-5. [PMID: 19412824 DOI: 10.1080/10731190902908387] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
We established a HPLC method for content determination of aniracetam in aniracetam inclusion complex. The chromato column was Agilent ODS (4.6mm x 150mm, 5 microm), the mobile phase was methanol-0.01 mol/L Potassium dihydrogen phosphate buffer solution (25:75, pH 3.0), with the flow rate of 1.0 ml/min, column temperature of 30 degrees and the detection wave at 280 nm, the sample size was 20microL. A good linear relationship was obtained between the peak areas and the concentrations of aniracetam in the range from 5- 80microg/ml (r=0.9998), the mean recovery was 100.1% (n=15), RSD=0.19%. This method is convenient, rapid, accurate, and brings about good recovery; it can be used for content determination of aniracetam in aniracetam inclusion complex.
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Affiliation(s)
- Yongjian Li
- Department of Pharmacy, Weifang People's Hospital, Weifang, Shandong, China
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Bolz I, Moon C, Enkelmann V, Brunklaus G, Spange S. Probing Molecular Recognition in the Solid-State by Use of an Enolizable Chromophoric Barbituric Acid. J Org Chem 2008; 73:4783-93. [DOI: 10.1021/jo800598z] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ina Bolz
- Institut für Chemie, Technische Universität Chemnitz, D-09107 Chemnitz, Germany, and Max-Planck-Institut für Polymerforschung, Postfach 3148, D-55021 Mainz, Germany
| | - Chulsoon Moon
- Institut für Chemie, Technische Universität Chemnitz, D-09107 Chemnitz, Germany, and Max-Planck-Institut für Polymerforschung, Postfach 3148, D-55021 Mainz, Germany
| | - Volker Enkelmann
- Institut für Chemie, Technische Universität Chemnitz, D-09107 Chemnitz, Germany, and Max-Planck-Institut für Polymerforschung, Postfach 3148, D-55021 Mainz, Germany
| | - Gunther Brunklaus
- Institut für Chemie, Technische Universität Chemnitz, D-09107 Chemnitz, Germany, and Max-Planck-Institut für Polymerforschung, Postfach 3148, D-55021 Mainz, Germany
| | - Stefan Spange
- Institut für Chemie, Technische Universität Chemnitz, D-09107 Chemnitz, Germany, and Max-Planck-Institut für Polymerforschung, Postfach 3148, D-55021 Mainz, Germany
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Abbaspour A, Noori A. Electrochemical studies on the oxidation of guanine and adenine at cyclodextrin modified electrodes. Analyst 2008; 133:1664-72. [DOI: 10.1039/b806920d] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kondo M, Nishikawa S. Inclusion kinetics of a nucleotide into a cyclodextrin cavity by means of ultrasonic relaxation. J Phys Chem B 2007; 111:13451-4. [PMID: 17973416 DOI: 10.1021/jp074555t] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
To examine a dynamic interaction between nucleotide and cyclic oligosaccharide, ultrasonic absorption measurements were carried out in aqueous solution containing beta-cyclodextrin (beta-CD) and adenosine 5'-monophosphate (AMP) in the frequency range of 0.8-95 MHz. A relaxational absorption was observed in the solution, although it was not found in the individual solution of beta-CD or AMP. From the concentration dependences of AMP on the relaxation time and the maximum absorption per wavelength, the cause of the relaxation was attributed to a perturbation of a chemical equilibrium associated with a complex formation between beta-CD (host) and AMP (guest). The rate constants for the formation and breakup processes of the complex were determined. Also, a standard volume change of the reaction was obtained. From comparisons of the obtained rate and thermodynamic parameters with those for beta-CD and various guests, it has been concluded that the adenine moiety is included in the beta-CD cavity and that the hydrogen bonds may play a role in the complex formation.
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Affiliation(s)
- Minako Kondo
- Department of Chemistry and Applied Chemistry, Faculty of Science and Engineering, Saga University, Saga, Japan 840-8502
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