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Kalydi E, Malanga M, Nielsen TT, Wimmer R, Béni S. Solving the puzzle of 2-hydroxypropyl β-cyclodextrin: Detailed assignment of the substituent distribution by NMR spectroscopy. Carbohydr Polym 2024; 338:122167. [PMID: 38763706 DOI: 10.1016/j.carbpol.2024.122167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 04/05/2024] [Accepted: 04/14/2024] [Indexed: 05/21/2024]
Abstract
2-Hydroxypropyl-β-cyclodextrin (HPBCD) is one of the most important cyclodextrin derivatives, finding extensive applications in the pharmaceutical sector. Beyond its role as an excipient, HPBCD achieved orphan drug status in 2015 for Niemann-Pick type C disease treatment, prompting research into its therapeutic potential for various disorders. However, the acceptance of HPBCD as an active pharmaceutical ingredient may be impeded by its complex nature. Indeed, HPBCD is not a single entity with a well-defined structure, instead, it is a complex mixture of isomers varying in substituent positions and the degree of hydroxypropylation, posing several challenges for unambiguous characterization. Pharmacopoeias' methods only address the average hydroxypropylation extent, lacking a rapid approach to characterize the substituent positions on the CD scaffold. Recognizing that the distribution of substituents significantly influences the complexation ability and overall activity of the derivative, primarily by altering cavity dimensions, we present a straightforward and non-destructive method based on liquid state NMR spectroscopy to analyze the positions of the hydroxypropyl sidechains. This method relies on a single set of routine experiments to establish quantitative assignment and it provides a simple yet effective tool to disclose the substitution pattern of this complex material, utilizing easily accessible (400 MHz NMR) instrumentation.
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Affiliation(s)
- Eszter Kalydi
- Department of Pharmacognosy, Semmelweis University, Üllői út. 26, 1085 Budapest, Hungary.
| | - Milo Malanga
- CarboHyde Zrt., Berlini u. 47-49, 1045 Budapest, Hungary.
| | - Thorbjørn Terndrup Nielsen
- Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220 Aalborg, Denmark.
| | - Reinhard Wimmer
- Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220 Aalborg, Denmark
| | - Szabolcs Béni
- Institute of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/a, 1117 Budapest, Hungary.
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2
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Laysandra L, Rusli RA, Chen YW, Chen SJ, Yeh YW, Tsai TL, Huang JH, Chuang KS, Njotoprajitno A, Chiu YC. Elastic and Self-Healing Copolymer Coatings with Antimicrobial Function. ACS APPLIED MATERIALS & INTERFACES 2024; 16:25194-25209. [PMID: 38684227 PMCID: PMC11103657 DOI: 10.1021/acsami.4c00431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 04/13/2024] [Accepted: 04/16/2024] [Indexed: 05/02/2024]
Abstract
The revolutionary self-healing function for long-term and safe service processes has inspired researchers to implement them in various fields, including in the application of antimicrobial protective coatings. Despite the great advances that have been made in the field of fabricating self-healing and antimicrobial polymers, their poor transparency and the trade-off between the mechanical and self-healing properties limit the utility of the materials as transparent antimicrobial protective coatings for wearable optical and display devices. Considering the compatibility in the blending process, our group proposed a self-healing, self-cross-linkable poly{(n-butyl acrylate)-co-[N-(hydroxymethyl)acrylamide]} copolymer (AP)-based protective coating combined with two types of commercial cationic antimicrobial agents (i.e., dimethyl octadecyl (3-trimethoxysilylpropyl) ammonium chloride (DTSACL) and chlorhexidine gluconate (CHG)), leading to the fabrication of a multifunctional modified compound film of (AP/b%CHG)-grafted-a%DTSACL. The first highlight of this research is that the reactivity of the hydroxyl group in the N-(hydroxymethyl)acrylamide of the copolymer side chains under thermal conditions facilitates the "grafting to" process with the trimethoxysilane groups of DTSACL to form AP-grafted-DTSACL, yielding favorable thermal stability, improvement in hydrophobicity, and enhancement of mechanical strength. Second, we highlight that the addition of CHG can generate covalent and noncovalent interactions in a complex manner between the two biguanide groups of CHG with the AP and DTSACL via a thermal-triggered cross-linking reaction. The noncovalent interactions synergistically serve as diverse dynamic hydrogen bonds, leading to complete healing upon scratches and even showing over 80% self-healing efficiency on full-cut, while covalent bonding can effectively improve elasticity and mechanical strength. The soft nature of CHG also takes part in improving the self-healing of the copolymer. Moreover, it was discovered that the addition of CHG can enhance antimicrobial effectiveness, as demonstrated by the long-term superior antibacterial activity (100%) against Gram-negative (Escherichia coli) and Gram-positive (Staphylococcus aureus) bacteria and the antifouling function on a glass substrate and/or a silica wafer coated by the modified polymer.
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Affiliation(s)
- Livy Laysandra
- Department
of Chemical Engineering, National Taiwan
University of Science and Technology, Taipei 10607, Taiwan
| | - Randy Arthur Rusli
- Department
of Chemical Engineering, National Taiwan
University of Science and Technology, Taipei 10607, Taiwan
| | - Yu-Wei Chen
- Department
of Chemical Engineering, National Taiwan
University of Science and Technology, Taipei 10607, Taiwan
| | - Shi-Ju Chen
- Taipei
Municipal Zhongshan Girls High School, Taipei 10617, Taiwan
| | - Yao-Wei Yeh
- Department
of Biomedical Engineering, College of Engineering, National Cheng Kung University, Tainan 704, Taiwan
| | - Tsung-Lin Tsai
- Department
of Biomedical Engineering, College of Engineering, National Cheng Kung University, Tainan 704, Taiwan
- Department
of Oncology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
| | - Jui-Hsiung Huang
- Department
of Green Material Technology, Green Technology
Research Institute, CPC Corporation, Kaohsiung City 811, Taiwan
| | - Kao-Shu Chuang
- Department
of Green Material Technology, Green Technology
Research Institute, CPC Corporation, Kaohsiung City 811, Taiwan
| | - Andreas Njotoprajitno
- Department
of Chemical Engineering, National Taiwan
University of Science and Technology, Taipei 10607, Taiwan
| | - Yu-Cheng Chiu
- Department
of Chemical Engineering, National Taiwan
University of Science and Technology, Taipei 10607, Taiwan
- Advanced
Research Center for Green Materials Science and Technology, National Taiwan University, Taipei 10617, Taiwan
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Thajai N, Rachtanapun P, Thanakkasaranee S, Chaiyaso T, Phimolsiripol Y, Leksawasdi N, Sommano SR, Sringarm K, Chaiwarit T, Ruksiriwanich W, Jantrawut P, Kodsangma A, Ross S, Worajittiphon P, Punyodom W, Jantanasakulwong K. Antimicrobial thermoplastic starch reactive blend with chlorhexidine gluconate and epoxy resin. Carbohydr Polym 2022; 301:120328. [DOI: 10.1016/j.carbpol.2022.120328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 10/23/2022] [Accepted: 11/07/2022] [Indexed: 11/13/2022]
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4
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Thajai N, Jantanasakulwong K, Rachtanapun P, Jantrawut P, Kiattipornpithak K, Kanthiya T, Punyodom W. Effect of chlorhexidine gluconate on mechanical and anti-microbial properties of thermoplastic cassava starch. Carbohydr Polym 2022; 275:118690. [PMID: 34742417 DOI: 10.1016/j.carbpol.2021.118690] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/16/2021] [Accepted: 09/17/2021] [Indexed: 11/28/2022]
Abstract
Antimicrobial thermoplastic starch (TPS) was developed using cassava starch, glycerol, and chlorhexidine gluconate (CHG) blend. CHG was added at concentrations of 1%, 5%, 10%, and 20% (wt./wt.) as an antimicrobial additive. The tensile strength and hardness of the blended samples increased with the chlorhexidine gluconate content, especially for 1% CHG. wt./wt. (12.6 MPa and 94, respectively). The TPS/CHG20 blend exhibited a large phase of CHG and recrystallization of TPS. The water solubility decreased with the addition of CHG. Nuclear magnetic resonance data confirmed a reaction between the hydroxyl groups of TPS and the amino groups of CHG. The TPS/CHG20% exhibited an inhibition zone for three bacterial types (Staphylococcus aureus, Escherichia coli, and Bacillus cereus) and three fungal types (Rhizopus oligosporus, Aspergillus oryzae, and Candida albicans). CHG acted simultaneously as a chain extender and an antimicrobial additive for TPS, improving its tensile strength, hardness, and anti-microbial properties.
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Affiliation(s)
- Nanthicha Thajai
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Kittisak Jantanasakulwong
- Faculty of Agro-Industry, Chiang Mai University, 50100, Thailand; Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; The Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai 50100, Thailand.
| | - Pornchai Rachtanapun
- Faculty of Agro-Industry, Chiang Mai University, 50100, Thailand; Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; The Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai 50100, Thailand
| | - Pensak Jantrawut
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Mae Hia, Muang, Chiang Mai, Thailand
| | | | | | - Winita Punyodom
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
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Preparation and characterization of spiro-acridine derivative and 2-hydroxypropyl-β-cyclodextrin inclusion complex. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128945] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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A deep insight into mechanism for inclusion of 2R,3R-dihydromyricetin with cyclodextrins and the effect of complexation on antioxidant and lipid-lowering activities. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105718] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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7
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Characterization and antioxidant activity of the complexes of tertiary butylhydroquinone with β-cyclodextrin and its derivatives. Food Chem 2018; 260:183-192. [DOI: 10.1016/j.foodchem.2018.04.008] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 04/02/2018] [Accepted: 04/04/2018] [Indexed: 11/18/2022]
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8
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Aloisio C, Longhi M. Diloxanide furoate binary complexes with β-, methyl-β-, and hydroxypropyl-β-cyclodextrins: inclusion mode, characterization in solution and in solid state and in vitro dissolution studies. Pharm Dev Technol 2017; 23:723-731. [DOI: 10.1080/10837450.2017.1362435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Carolina Aloisio
- CONICET and Departamento de Farmacia, Facultad de Ciencias Químicas, Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), Universidad Nacional de Córdoba, Ciudad Universitaria, Córdoba, Argentina
| | - Marcela Longhi
- CONICET and Departamento de Farmacia, Facultad de Ciencias Químicas, Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), Universidad Nacional de Córdoba, Ciudad Universitaria, Córdoba, Argentina
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Tang P, Wang L, Ma X, Xu K, Xiong X, Liao X, Li H. Characterization and In Vitro Evaluation of the Complexes of Posaconazole with β- and 2,6-di-O-methyl-β-cyclodextrin. AAPS PharmSciTech 2017; 18:104-114. [PMID: 26883260 DOI: 10.1208/s12249-016-0497-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 02/01/2016] [Indexed: 11/30/2022] Open
Abstract
Posaconazole is a triazole antifungal drug that with extremely poor aqueous solubility. Up to now, this drug can be administered via intravenous injection and oral suspension. However, its oral bioavailability is greatly limited by the dissolution rate of the drug. This study aimed to improve water solubility and dissolution of posaconazole through characterizing the inclusion complexes of posaconazole with β-cyclodextrin (β-CD) and 2,6-di-O-methyl-β-cyclodextrin (DM-β-CD). Phase solubility studies were performed to calculate the stability constants in solution. The results of FT-IR, PXRD, 1H and ROESY 2D NMR, and DSC all verified the formation of the complexes in solid state. The complexes showed remarkably improved water solubility and dissolution rate than pure posaconazole. Especially, the aqueous solubility of the DM-β-CD complex is nine times higher than that of the β-CD complex. Preliminary in vitro antifungal susceptibility tests showed that the two inclusion complexes maintained high antifungal activities. These results indicated that the DM-β-CD complexes have great potential for application in the delivery of poorly water-soluble antifungal agents, such as posaconazole.
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Celebioglu A, Umu OCO, Tekinay T, Uyar T. Antibacterial electrospun nanofibers from triclosan/cyclodextrin inclusion complexes. Colloids Surf B Biointerfaces 2013; 116:612-9. [PMID: 24262865 DOI: 10.1016/j.colsurfb.2013.10.029] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 10/11/2013] [Accepted: 10/21/2013] [Indexed: 01/14/2023]
Abstract
The electrospinning of nanofibers (NF) from cyclodextrin inclusion complexes (CD-IC) with an antibacterial agent (triclosan) was achieved without using any carrier polymeric matrix. Polymer-free triclosan/CD-IC NF were electrospun from highly concentrated (160% CD, w/w) aqueous triclosan/CD-IC suspension by using two types of chemically modified CD; hydroxypropyl-beta-cyclodextrin (HPβCD) and hydroxypropyl-gamma-cyclodextrin (HPγCD). The morphological characterization of the electrospun triclosan/CD-IC NF by SEM elucidated that the triclosan/HPβCD-IC NF and triclosan/HPγCD-IC NF were bead-free having average fiber diameter of 520 ± 250 nm and 1,100 ± 660 nm, respectively. The presence of triclosan and the formation of triclosan/CD-IC within the fiber structure were confirmed by (1)H-NMR, FTIR, XRD, DSC, and TGA studies. The initial 1:1 molar ratio of the triclosan:CD was kept for triclosan/HPβCD-IC NF after the electrospinning and whereas 0.7:1 molar ratio was observed for triclosan/HPγCD-IC NF and some uncomplexed triclosan was detected suggesting that the complexation efficiency of triclosan with HPγCD was lower than that of HPβCD. The antibacterial properties of triclosan/CD-IC NF were tested against Gram-negative (Escherichia coli) and Gram-positive (Staphylococcus aureus) bacteria. It was observed that triclosan/HPβCD-IC NF and triclosan/HPγCD-IC NF showed better antibacterial activity against both bacteria compared to uncomplexed pure triclosan.
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Affiliation(s)
- Asli Celebioglu
- Institute of Materials Science & Nanotechnology and UNAM-National Nanotechnology Research Center, Bilkent University, Ankara 06800, Turkey
| | - Ozgun C O Umu
- Institute of Materials Science & Nanotechnology and UNAM-National Nanotechnology Research Center, Bilkent University, Ankara 06800, Turkey
| | - Turgay Tekinay
- Institute of Materials Science & Nanotechnology and UNAM-National Nanotechnology Research Center, Bilkent University, Ankara 06800, Turkey; Gazi University, Life Sciences Application and Research Center, Ankara 06830, Turkey; Gazi University, Polatlı Science and Literature Faculty, Ankara 06900, Turkey
| | - Tamer Uyar
- Institute of Materials Science & Nanotechnology and UNAM-National Nanotechnology Research Center, Bilkent University, Ankara 06800, Turkey.
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Inclusion of quinestrol and 2,6-di-O-methyl-β-cyclodextrin: Preparation, characterization, and inclusion mode. Carbohydr Polym 2013; 93:753-60. [DOI: 10.1016/j.carbpol.2012.12.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2012] [Revised: 11/29/2012] [Accepted: 12/05/2012] [Indexed: 11/20/2022]
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12
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MacGillivray BC, Macartney DH. Cucurbit[7]uril Host-Guest Complexes with Biguanidinium Cations in Aqueous Solution. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201655] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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13
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Siripornnoppakhun W, Niamnont N, Krumsri A, Tumcharern G, Vilaivan T, Rashatasakhon P, Thayumanavan S, Sukwattanasinitt M. Inclusion Complexes between Amphiphilic Phenyleneethynylene Fluorophores and Cyclodextrins in Aqueous Media. J Phys Chem B 2012; 116:12268-74. [DOI: 10.1021/jp3057652] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
| | - Nakorn Niamnont
- Department
of Chemistry, Faculty
of Science, King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand
| | - Akachai Krumsri
- Department of Chemistry, Faculty
of Science, Chulalongkorn University, Bangkok
10330, Thailand
| | - Gamolwan Tumcharern
- Thailand National Nanotechnology
Center, National Science and Technology Development Agency, Patumthanee 12120, Thailand
| | - Tirayut Vilaivan
- Department of Chemistry, Faculty
of Science, Chulalongkorn University, Bangkok
10330, Thailand
| | - Paitoon Rashatasakhon
- Department of Chemistry, Faculty
of Science, Chulalongkorn University, Bangkok
10330, Thailand
| | - S. Thayumanavan
- Department of Chemistry, University of Massachusetts at Amherst, Amherst, Massachusetts
01003, United States
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