1
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Thapa R, Pandey P, Parat MO, Gurung S, Parekh HS. Phase transforming in situ gels for sustained and controlled transmucosal drug delivery via the intravaginal route. Int J Pharm 2024; 655:124054. [PMID: 38548071 DOI: 10.1016/j.ijpharm.2024.124054] [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: 02/14/2024] [Revised: 03/24/2024] [Accepted: 03/25/2024] [Indexed: 04/01/2024]
Abstract
Direct, reliable, controlled, and sustained drug delivery to female reproductive tract (FRT) remains elusive, with conventional dosage forms falling way short of the mark, leading to premature leakage, erratic drug delivery, and loss of compliance. Historically, the intravaginal route remains underserved by the pharmaceutical sector. To comprehensively address this, we turned our focus to phase-transforming sol-gels, using poloxamers, a thermosensitive polymer and, doxycycline (as hyclate salt, DOXH) as our model agent given its potential use in sexually transmitted infections (STIs). We further enhanced mucoadhesiveness through screening of differing viscosity grade hydroxypropyl methyl celluloses (HPMCs). The optimised sol-gels remained gelled at body temperature (<37 °C) and were prepared in buffer aligned to vaginal cavity pH and osmolality. Lead formulations were progressed based on their ability to retain key rheological properties, and acidic pH in the presence of simulated vaginal fluid (SVF). From a shelf-life perspective, DOXH stability, gelation temperature (Tsol-gel), and pH to three months (2-8 °C) was attained. In summary, the meticulously engineered, phase-transforming sol-gels provided sustained mucoretention despite dilution by vaginal fluid, paving the way for localised antimicrobial drug delivery at concentrations that potentially far exceed the minimum inhibitory concentration (MIC) for target STI-causing bacteria of the FRT.
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Affiliation(s)
- Ritu Thapa
- School of Pharamcy, The University of Queensland, 20 Cornwall St, Woollongabba, QLD 4102, Australia
| | - Preeti Pandey
- School of Pharamcy, The University of Queensland, 20 Cornwall St, Woollongabba, QLD 4102, Australia.
| | - Marie-Odile Parat
- School of Pharamcy, The University of Queensland, 20 Cornwall St, Woollongabba, QLD 4102, Australia
| | - Shila Gurung
- School of Health and Allied Sciences, Pokhara University, Pokhara-30, Kaski 33700, Nepal
| | - Harendra S Parekh
- School of Pharamcy, The University of Queensland, 20 Cornwall St, Woollongabba, QLD 4102, Australia.
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2
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Saliy O, Popova M, Tarasenko H, Getalo O. Development strategy of novel drug formulations for the delivery of doxycycline in the treatment of wounds of various etiologies. Eur J Pharm Sci 2024; 195:106636. [PMID: 38185273 DOI: 10.1016/j.ejps.2023.106636] [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: 07/20/2023] [Revised: 11/01/2023] [Accepted: 11/10/2023] [Indexed: 01/09/2024]
Abstract
Doxycycline hyclate (DOXH) is a broad-spectrum antibiotic derived synthetically from tetracycline. Despite its use in clinical practice for more than 40 years, DOXH remains an effective antibiotic with retained activity. The potential advantages of DOXH for wound healing therapy include its mechanisms of action, such as anti-inflammatory effects, antioxidant properties, modulation of cellular processes, stimulation of collagen synthesis, and antimicrobial activity. As current standards of care aim to improve wound healing by promoting rapid closure, a relevant direction is the development of novel DOXH formulations for parenteral delivery that enhance both skin regeneration and control of infectious conditions. Oral delivery is the most common and commercially available route for administering DOXH therapeutic agents. However, parenteral delivery of DOXH, where the antibiotic substance is not in a solid state (as in powdered or compressed solid form) but rather dissolved in any carrier, presents challenges regarding DOX solubility and the stability of DOXH solutions, which are major factors complicating the development of new formulations for parenteral administration. This review discusses the achievements in research strategies and the development of new pharmaceutical formulations for the delivery of doxycycline in the treatment of wounds of various etiologies.
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Affiliation(s)
- Olena Saliy
- Department of Industrial Pharmacy, Kyiv National University of Technologies and Design, Mala Shyianovska (Nemyrovycha-Danchenka) Street, 2, Kyiv 01011, Ukraine
| | - Mariia Popova
- Department of Industrial Pharmacy, Kyiv National University of Technologies and Design, Mala Shyianovska (Nemyrovycha-Danchenka) Street, 2, Kyiv 01011, Ukraine.
| | - Hanna Tarasenko
- Department of Industrial Pharmacy, Kyiv National University of Technologies and Design, Mala Shyianovska (Nemyrovycha-Danchenka) Street, 2, Kyiv 01011, Ukraine
| | - Olga Getalo
- Department of Industrial, Clinical pharmacy and Clinical pharmacology, Shupyk National Healthcare University of Ukraine, Dorohozhytska Street 9, Kyiv 04112 Ukraine
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3
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Liu H, Guo S, Wei S, Liu J, Tian B. Pharmacokinetics and pharmacodynamics of cyclodextrin-based oral drug delivery formulations for disease therapy. Carbohydr Polym 2024; 329:121763. [PMID: 38286540 DOI: 10.1016/j.carbpol.2023.121763] [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: 11/03/2023] [Revised: 12/07/2023] [Accepted: 12/28/2023] [Indexed: 01/31/2024]
Abstract
Oral drug administration has become the most common and preferred mode of disease treatment due to its good medication adherence and convenience. For orally administered drugs, the safety, efficacy, and targeting ability requirements have grown as disease treatment research advances. It is difficult to obtain prominent efficacy of traditional drugs simply via oral administration. Numerous studies have demonstrated that cyclodextrins (CDs) can improve the clinical applications of certain orally administered drugs by enhancing their water solubility and masking undesirable odors. Additionally, deeper studies have discovered that CDs can influence disease treatment by altering the drug pharmacokinetics (PK) or pharmacodynamics (PD). This review highlights recent research progress on the PK and PD effects of CD-based oral drug delivery in disease therapy. Firstly, the review describes the characteristics of current drug delivery modes in oral administration. Besides, we minutely summarized the different CD-containing drugs, focusing on the impact of CD-based alterations in PK or PD of orally administered drugs in treating diseases. Finally, we deeply discussed current challenges and future opportunities with regard to PK and PD of CD-based oral drug delivery formulations.
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Affiliation(s)
- Hui Liu
- Pharmacy Department, General Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Songlin Guo
- Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Shijie Wei
- Pharmacy Department, General Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia, China.
| | - Jiayue Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau SAR, China.
| | - Bingren Tian
- Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia, China.
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4
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Longre S, Rana D, Rangra S, Jindal AB, Salave S, Vitore J, Benival D. Quality-by-Design Based Development of Doxycycline Hyclate-Loaded Polymeric Microspheres for Prolonged Drug Release. AAPS PharmSciTech 2024; 25:49. [PMID: 38424393 DOI: 10.1208/s12249-024-02760-7] [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: 10/07/2023] [Accepted: 02/06/2024] [Indexed: 03/02/2024] Open
Abstract
This study explores a novel approach to address the challenges of delivering highly water-soluble drug molecules by employing hydrophobic ion-pairing (HIP) complexes within poly (lactic-co-glycolic acid) (PLGA) microspheres. The HIP complex, formed between doxycycline hyclate (DH) and docusate sodium (DS), renders the drug hydrophobic. The development of the microspheres was done using the QbD approach, namely, Box-Behnken Design (BBD). A comprehensive characterization of the HIP complex confirmed the successful conversion of DH. DH and the HIP complex were effectively loaded into PLGA microspheres using the oil-in-water (O/W) emulsion solvent evaporation method. Results demonstrated significant improvements in percentage entrapment efficiency (% EE) and drug loading (% DL) for DH within the HIP complex-loaded PLGA microspheres compared to DH-loaded microspheres alone. Additionally, the initial burst release of DH reduced to 3% within the initial 15 min, followed by sustained drug release over 8 days. The modified HIP complex strategy offers a promising platform for improving the delivery of highly water-soluble small molecules. It provides high % EE, % DL, minimal initial burst release, and sustained release, thus having the potential to enhance patient compliance and drug delivery efficiency.
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Affiliation(s)
- Suraj Longre
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research -Ahmedabad (NIPER-A), Gandhinagar, India
| | - Dhwani Rana
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research -Ahmedabad (NIPER-A), Gandhinagar, India
| | - Shagun Rangra
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research -Ahmedabad (NIPER-A), Gandhinagar, India
| | - Anil B Jindal
- Department of Pharmacy, Birla Institute of Technology and Science Pilani (BITS PILANI), Pilani Campus, Rajasthan, 333031, India
| | - Sagar Salave
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research -Ahmedabad (NIPER-A), Gandhinagar, India
| | - Jyotsna Vitore
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research -Ahmedabad (NIPER-A), Gandhinagar, India
| | - Derajram Benival
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research -Ahmedabad (NIPER-A), Gandhinagar, India.
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5
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Yamamoto K, Tanikawa T, Tomita J, Ishida Y, Nakata D, Terao K, Inoue Y. Characterization, Preparation, and Promotion of Plant Growth of 1,3-Diphenylurea/β-Cyclodextrin Derivatives Inclusion Complexes. ACS OMEGA 2023; 8:34972-34981. [PMID: 37779935 PMCID: PMC10536069 DOI: 10.1021/acsomega.3c04428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 09/04/2023] [Indexed: 10/03/2023]
Abstract
The study aimed to prepare inclusion complexes of 1,3-diphenylurea (DPU) with β-cyclodextrin (βCD) and 2-hydroxypropyl-β-cyclodextrin (HP-βCD) using a three-dimensional ground mixture (3DGM). Their physicochemical properties, intermolecular interactions, solubilities, and plant growth-promoting activities were investigated on broccoli sprouts. Phase-solubility diagrams indicated the stability constant (Ks) and complexation efficiency (CE) of βCD/DPU were found to be K1/1 = 250 M-1, CE = 2.48× 10-3. The Ks and CEs of HP-βCD/DPU were found to be K1/1 = 427 M-1, CE = 3.93 × 10-3 and K2/1 = 196 M-1, CE = 1.93 × 10-3 respectively. The powder X-ray diffraction results of 3DGM (βCD/DPU = 2/1, HP-βCD/DPU = 2/1) showed that the diffraction peaks originating from the DPU and βCD disappeared, indicating a halo pattern. Differential scanning calorimetry results showed an endothermic peak at 244 °C derived from the melting point of DPU, but the endothermic peak disappeared in the 3DGM (βCD/DPU = 2/1, HP-βCD/DPU = 2/1). Near-infrared absorption spectra showed peak shifts in 3DGM (βCD/DPU and HP-βCD/DPU) at the -CH and -NH groups of DPU and the -OH groups of βCDs and free water. In the dissolution test (after 5 min), the concentration of intact DPU was 0.083 μg/mL. However, the dissolution concentrations of DPU in the 3DGM (βCD/DPU = 1/1), 3DGM (βCD/DPU = 2/1), 3DGM (HP-βCD/DPU = 1/1), and 3DGM (HP-βCD/DPU = 2/1) were 3.27, 3.64, 5.70, and 7.03 μg/mL, respectively, indicating higher solubility than that of the intact DPU. Further, 1H-1H NOESY NMR spectroscopic measurements showed cross-peaks between H-A (7.32 ppm) and H-B (7.12 ppm) of DPU and H-6 (3.79 ppm) in the βCD cavity of the 3DGM (βCD/DPU = 2/1). A cross-peak was also observed among DPU H-A (7.32 ppm), H-B (7.11 ppm), and H-6 (3.78 ppm) in the βCD cavity. The results of the broccoli sprout cultivation experiment showed that 3DGM (βCD/DPU = 1/1), 3DGM (βCD/DPU = 2/1), 3DGM (HP-βCD/DPU = 1/1), and 3DGM (HP-βCD/DPU = 2/1) increased the stem thickness compared with that of the control group (DPU). These results indicated that the βCD/DPU and HP-βCD/DPU inclusion complexes were formed by the three-dimensional mixing and milling method, which enhanced the solubility and plant growth-promoting effects.
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Affiliation(s)
- Koki Yamamoto
- Laboratory
of Nutri-Pharmacotherapeutics Management, Faculty of Pharmacy and
Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama3500295, Japan
| | - Takashi Tanikawa
- Laboratory
of Nutri-Pharmacotherapeutics Management, Faculty of Pharmacy and
Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama3500295, Japan
| | - Junki Tomita
- Instrument
Analysis Center, Josai University, 1-1 Keyakidai, Sakado, Saitama3500295, Japan
| | - Yoshiyuki Ishida
- CycloChem
Bio Co., Ltd., 7-4-5
minatojima-Minamimachi, Chuo-ku, Kobe 6500047, Japan
| | - Daisuke Nakata
- CycloChem
Bio Co., Ltd., 7-4-5
minatojima-Minamimachi, Chuo-ku, Kobe 6500047, Japan
| | - Keiji Terao
- CycloChem
Bio Co., Ltd., 7-4-5
minatojima-Minamimachi, Chuo-ku, Kobe 6500047, Japan
| | - Yutaka Inoue
- Laboratory
of Nutri-Pharmacotherapeutics Management, Faculty of Pharmacy and
Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama3500295, Japan
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6
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Aiassa V, Garnero C, Zoppi A, Longhi MR. Cyclodextrins and Their Derivatives as Drug Stability Modifiers. Pharmaceuticals (Basel) 2023; 16:1074. [PMID: 37630988 PMCID: PMC10459549 DOI: 10.3390/ph16081074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/20/2023] [Accepted: 07/22/2023] [Indexed: 08/27/2023] Open
Abstract
Cyclodextrins (CDs) are cyclic oligosaccharides that contain a relatively hydrophobic central cavity and a hydrophilic outer surface. They are widely used to form non-covalent inclusion complexes with many substances. Although such inclusion complexes typically exhibit higher aqueous solubility and chemical stability than pure drugs, it has been shown that CDs can promote the degradation of some drugs. This property of stabilizing certain drugs while destabilizing others can be explained by the type of CD used and the structure of the inclusion complex formed. In addition, the ability to form complexes of CDs can be improved through the addition of suitable auxiliary substances, forming multicomponent complexes. Therefore, it is important to evaluate the effect that binary and multicomponent complexes have on the chemical and physical stability of complexed drugs. The objective of this review is to summarize the studies on the stabilizing and destabilizing effects of complexes with CDs on drugs that exhibit stability problems.
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7
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Carvalho Feitosa R, Souza Ribeiro Costa J, van Vliet Lima M, Sawa Akioka Ishikawa E, Cogo Müller K, Bonin Okasaki F, Sabadini E, Garnero C, Longhi MR, Lavayen V, da Silva-Júnior AA, Oliveira-Nascimento L. Supramolecular Arrangement of Doxycycline with Sulfobutylether-β-Cyclodextrin: Impact on Nanostructuration with Chitosan, Drug Degradation and Antimicrobial Potency. Pharmaceutics 2023; 15:pharmaceutics15041285. [PMID: 37111770 PMCID: PMC10144562 DOI: 10.3390/pharmaceutics15041285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/31/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
Doxycycline (DX) is a well-established and broad-spectrum antimicrobial drug. However, DX has drawbacks, such as physicochemical instability in aqueous media and bacterial resistance. The inclusion of drugs in cyclodextrin complexes and their loading into nanocarriers can overcome these limitations. Thus, we studied the DX/sulfobutylether-β-CD (SBE-β-CD) inclusion complex for the first time and used it to reticulate chitosan. The resulting particles were evaluated by their physicochemical characteristics and antibacterial activity. DX/SBE-β-CD complexes were characterized by nuclear magnetic resonance, infrared spectroscopy, thermal analysis, X-ray diffraction, and scanning electron microscopy (SEM), whereas DX-loaded nanoparticles were characterized by dynamic light scattering, SEM, and drug content. The partial inclusion of the DX molecule in CD happened in a 1:1 proportion and brought increased stability to solid DX upon thermal degradation. Chitosan-complex nanoparticles measured approximately 200 nm, with a narrow polydispersity and particles with sufficient drug encapsulation for microbiological studies. Both formulations preserved the antimicrobial activity of DX against Staphylococcus aureus, whereas DX/SBE-β-CD inclusion complexes were also active against Klebsiella pneumoniae, indicating the potential use of these formulations as drug delivery systems to treat local infections.
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Affiliation(s)
- Renata Carvalho Feitosa
- Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas 13083-871, SP, Brazil
| | | | - Marcelo van Vliet Lima
- Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas 13083-871, SP, Brazil
| | | | - Karina Cogo Müller
- Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas 13083-871, SP, Brazil
| | - Fernando Bonin Okasaki
- Department of Physical Chemistry, Institute of Chemistry, University of Campinas (UNICAMP), Campinas 13083-970, SP, Brazil
| | - Edvaldo Sabadini
- Department of Physical Chemistry, Institute of Chemistry, University of Campinas (UNICAMP), Campinas 13083-970, SP, Brazil
| | - Claudia Garnero
- Research and Pharmaceutical Technology Development Unit (UNITEFA, CONICET-UNC) and Department of Pharmacy, Faculty of Chemical Sciences, National University of Cordoba, Cordoba X5000HUA, Argentina
| | - Marcela Raquel Longhi
- Research and Pharmaceutical Technology Development Unit (UNITEFA, CONICET-UNC) and Department of Pharmacy, Faculty of Chemical Sciences, National University of Cordoba, Cordoba X5000HUA, Argentina
| | - Vladimir Lavayen
- Department of Inorganic Chemistry, Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre 91501-970, RS, Brazil
| | - Arnóbio Antônio da Silva-Júnior
- Laboratory of Pharmaceutical Technology and Biotechnology, Department of Pharmacy, Federal University of Rio Grande do Norte (UFRN), Natal 59012-570, RN, Brazil
| | - Laura Oliveira-Nascimento
- Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas 13083-871, SP, Brazil
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8
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Pickering high internal phase emulsions with excellent UV protection property stabilized by Spirulina protein isolate nanoparticles. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.108369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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9
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Son Phan K, Thu Huong Le T, Minh Nguyen T, Thu Trang Mai T, Ha Hoang P, Thang To X, Trung Nguyen T, Dang Pham K, Thu Ha P. Co‐delivery of Doxycycline, Florfenicol and Silver Nanoparticles using Alginate/Chitosan Nanocarriers. ChemistrySelect 2022. [DOI: 10.1002/slct.202201954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ke Son Phan
- Institute of Materials Science Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi Vietnam
| | - Thi Thu Huong Le
- Institute of Materials Science Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi Vietnam
- Vietnam National University of Agriculture Trau Quy, Gia Lam District Hanoi Vietnam
| | - Thi Minh Nguyen
- Institute of Biotechnology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi Vietnam
| | - Thi Thu Trang Mai
- Institute of Materials Science Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi Vietnam
| | - Phuong Ha Hoang
- Institute of Biotechnology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi Vietnam
| | - Xuan Thang To
- Institute of Materials Science Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi Vietnam
| | - Thanh Trung Nguyen
- Vietnam National University of Agriculture Trau Quy, Gia Lam District Hanoi Vietnam
| | - Kim Dang Pham
- Vietnam National University of Agriculture Trau Quy, Gia Lam District Hanoi Vietnam
| | - Phuong Thu Ha
- Institute of Materials Science Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi Vietnam
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10
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Cyclodextrin Inclusion Complexes with Antibiotics and Antibacterial Agents as Drug-Delivery Systems—A Pharmaceutical Perspective. Pharmaceutics 2022; 14:pharmaceutics14071389. [PMID: 35890285 PMCID: PMC9323747 DOI: 10.3390/pharmaceutics14071389] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/23/2022] [Accepted: 06/27/2022] [Indexed: 02/06/2023] Open
Abstract
Cyclodextrins (CDs) are a family of cyclic oligosaccharides, consisting of a macrocyclic ring of glucose subunits linked by α-1,4 glycosidic bonds. The shape of CD molecules is similar to a truncated cone with a hydrophobic inner cavity and a hydrophilic surface, which allows the formation of inclusion complexes with various molecules. This review article summarises over 200 reports published by the end of 2021 that discuss the complexation of CDs with antibiotics and antibacterial agents, including beta-lactams, tetracyclines, quinolones, macrolides, aminoglycosides, glycopeptides, polypeptides, nitroimidazoles, and oxazolidinones. The review focuses on drug-delivery applications such as improving solubility, modifying the drug-release profile, slowing down the degradation of the drug, improving biological membrane permeability, and enhancing antimicrobial activity. In addition to simple drug/CD combinations, ternary systems with additional auxiliary substances have been described, as well as more sophisticated drug-delivery systems including nanosponges, nanofibres, nanoparticles, microparticles, liposomes, hydrogels, and macromolecules. Depending on the desired properties of the drug product, an accelerated or prolonged dissolution profile can be achieved when combining CD with antibiotics or antimicrobial agents.
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11
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Yu YH, Shen SJ, Hsu YH, Chou YC, Yu PC, Liu SJ. Tri-Layered Doxycycline-, Collagen- and Bupivacaine-Loaded Poly(lactic-co-glycolic acid) Nanofibrous Scaffolds for Tendon Rupture Repair. Polymers (Basel) 2022; 14:polym14132659. [PMID: 35808704 PMCID: PMC9269609 DOI: 10.3390/polym14132659] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 06/24/2022] [Accepted: 06/27/2022] [Indexed: 01/05/2023] Open
Abstract
Achilles tendon rupture is a severe injury, and its optimal therapy remains controversial. Tissue engineering scaffolds play a significant role in tendon healing and tissue regeneration. In this study, we developed tri-layered doxycycline/collagen/bupivacaine (DCB)-composite nanofibrous scaffolds to repair injured Achilles tendons. Doxycycline, collagen, and bupivacaine were integrated into poly(lactic-co-glycolic acid) (PLGA) nanofibrous membranes, layer by layer, using an electrospinning technique as healing promoters, a 3D scaffold, and painkillers, respectively. After spinning, the properties of the nanofibrous scaffolds were characterized. In vitro drug discharge behavior was also evaluated. Furthermore, the effectiveness of the DCB–PLGA-composite nanofibers in repairing ruptured Achilles tendons was investigated in an animal tendon model with histological analyses. The experimental results show that, compared to the pristine PLGA nanofibers, the biomolecule-loaded nanofibers exhibited smaller fiber size distribution and an enhanced hydrophilicity. The DCB-composite nanofibers provided a sustained release of doxycycline and bupivacaine for over 28 days in vivo. Additionally, Achilles tendons repaired using DCB-composite nanofibers exhibited a significantly higher maximum load-to-failure than normal tendons, suggesting that the biomolecule-incorporated nanofibers are promising scaffolds for repairing Achilles tendons.
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Affiliation(s)
- Yi-Hsun Yu
- Bone and Joint Research Center, Department of Orthopedic Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan 33305, Taiwan; (Y.-H.Y.); (Y.-H.H.); (Y.-C.C.)
| | - Shih-Jyun Shen
- Department of Anesthesiology, Chang Gung Memorial Hospital at Linkou, Taoyuan 33305, Taiwan;
| | - Yung-Heng Hsu
- Bone and Joint Research Center, Department of Orthopedic Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan 33305, Taiwan; (Y.-H.Y.); (Y.-H.H.); (Y.-C.C.)
| | - Ying-Chao Chou
- Bone and Joint Research Center, Department of Orthopedic Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan 33305, Taiwan; (Y.-H.Y.); (Y.-H.H.); (Y.-C.C.)
| | - Ping-Chun Yu
- Department of Mechanical Engineering, Chang Gung University, Taoyuan 33302, Taiwan;
| | - Shih-Jung Liu
- Bone and Joint Research Center, Department of Orthopedic Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan 33305, Taiwan; (Y.-H.Y.); (Y.-H.H.); (Y.-C.C.)
- Department of Mechanical Engineering, Chang Gung University, Taoyuan 33302, Taiwan;
- Correspondence: ; Tel.: +886-3-2118166; Fax: +886-3-2118558
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12
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Pandey M, Rani P, Adhikari L, Gupta M, Semalty A, Semalty M. Preparation and characterization of cyclodextrin complexes of doxycycline hyclate for improved photostability in aqueous solution. J INCL PHENOM MACRO 2021. [DOI: 10.1007/s10847-021-01116-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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13
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Mesoporous Silica-Bioglass Composite Pellets as Bone Drug Delivery System with Mineralization Potential. Int J Mol Sci 2021; 22:ijms22094708. [PMID: 33946793 PMCID: PMC8124432 DOI: 10.3390/ijms22094708] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/19/2021] [Accepted: 04/26/2021] [Indexed: 12/12/2022] Open
Abstract
For decades, local bone drug delivery systems have been investigated in terms of their application in regenerative medicine. Among them, inorganic polymers based on amorphous silica have been widely explored. In this work, we combined two types of amorphous silica: bioglass and doxycycline-loaded mesoporous silica MCM-41 into the form of spherical granules (pellets) as a bifunctional bone drug delivery system. Both types of silica were obtained in a sol-gel method. The drug adsorption onto the MCM-41 was performed via adsorption from concentrated doxycycline hydrochloride solution. Pellets were obtained on a laboratory scale using the wet granulation-extrusion-spheronization method and investigated in terms of physical properties, drug release, antimicrobial activity against Staphylococcus aureus, mineralization properties in simulated body fluid, and cytotoxicity towards human osteoblasts. The obtained pellets were characterized by satisfactory mechanical properties which eliminated the risk of pellets cracking during further investigations. The biphasic drug release from pellets was observed: burst stage (44% of adsorbed drug released within the first day) followed by prolonged release with zero-order kinetics (estimated time of complete drug release was 19 days) with maintained antimicrobial activity. The progressive biomimetic apatite formation on the surface of the pellets was observed. No cytotoxic effect of pellets towards human osteoblasts was noticed.
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Patlolla VGR, Popovic N, Peter Holbrook W, Kristmundsdottir T, Gizurarson S. Effect of Doxycycline Microencapsulation on Buccal Films: Stability, Mucoadhesion and In Vitro Drug Release. Gels 2021; 7:gels7020051. [PMID: 33924744 PMCID: PMC8167737 DOI: 10.3390/gels7020051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 04/13/2021] [Accepted: 04/22/2021] [Indexed: 01/12/2023] Open
Abstract
The aim of this work was to stabilize doxycycline in mucoadhesive buccal films at room temperature (25 °C). Since doxycycline is susceptible to degradation such as oxidation and epimerization, tablets are currently the only formulation that can keep the drug fully stable at room temperature, while liquid formulations are limited to refrigerated conditions (4 °C). In this study, the aim was to make formulations containing subclinical (antibiotic) doxycycline concentration that can act as matrix metalloproteinase inhibitors (MMPI) and can be stored at temperatures such as 25 °C. Here, doxycycline was complexed with excipients using three techniques and entrapped into microparticles that were stored at 4 °C, 25 °C and 40 °C. Effect of addition of precomplexed doxycycline microparticles on films: stability mucoadhesion capacity, tensile strength, swelling index and in vitro release was studied. The complexation efficiency between drug-excipients, microparticles and films was studied using Fourier-transform infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC). Two of the films were found to be stable at 4 °C but the film containing microparticle composed of precomplexed doxycycline with β-cyclodextrin, MgCl2, sodium thiosulfate, HPMC and Eudragit® RS 12.5 was found to be stable at 25 °C until 26 weeks. The addition of microparticles to the films was found to reduce the mucoadhesive capacity, peak detachment force, tensile strength and elasticity, but improved the stability at room temperature.
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Affiliation(s)
- Venu Gopal Reddy Patlolla
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, 107 Reykjavik, Iceland; (V.G.R.P.); (N.P.); (T.K.)
- Faculty of Odontology, University of Iceland, Vatnsmýrarveg 16, 101 Reykjavík, Iceland;
| | - Nikolina Popovic
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, 107 Reykjavik, Iceland; (V.G.R.P.); (N.P.); (T.K.)
- Costco Pharmacy, Kauptúni 3, 210 Garðabær, Iceland
| | | | - Thordis Kristmundsdottir
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, 107 Reykjavik, Iceland; (V.G.R.P.); (N.P.); (T.K.)
| | - Sveinbjörn Gizurarson
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, 107 Reykjavik, Iceland; (V.G.R.P.); (N.P.); (T.K.)
- Pharmacy Department, College of Medicine, University of Malawi, Blantyre 3, Malawi
- Correspondence:
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15
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Zheng K, Liu X, Liu H, Dong D, Li L, Jiang L, Huang M, Ding C. Novel pH-Triggered Doxorubicin-Releasing Nanoparticles Self-Assembled by Functionalized β-Cyclodextrin and Amphiphilic Phthalocyanine for Anticancer Therapy. ACS APPLIED MATERIALS & INTERFACES 2021; 13:10674-10688. [PMID: 33621058 DOI: 10.1021/acsami.0c19027] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Cyclodextrins (CDs), as pharmaceutical excipients with excellent biocompatibility, non-immunogenicity, and low toxicity in vivo, are widely used to carry drugs by forming inclusion complexes for improving the solubility and stability of drugs. However, the limited space of CDs' lipophilic central cavity affects the loading of many drugs, especially with larger molecules. In this study, β-CDs were modified by acetonization to improve the affinity for the chemotherapy drug doxorubicin (DOX), and doxorubicin-adsorbing acetalated β-CDs (Ac-CD:DOX) self-assembled to nanoparticles, followed by coating with the amphiphilic zinc phthalocyanine photosensitizer ZnPc-(PEG)5 for antitumor therapy. The final product ZnPc-(PEG)5:Ac-CD:DOX was demonstrated to have excellent stability and pH-sensitive drug release characteristics. The cell viability and apoptosis assay showed synergistic cytotoxic effects of chemotherapy and phototherapy. The mechanism of cytotoxicity was analyzed in terms of intracellular reactive oxygen species, mitochondrial membrane potential, and subcellular localization. More importantly, in vivo experiments indicated that ZnPc-(PEG)5:Ac-CD:DOX possessed significant tumor targeting, prominent antitumor activity, and less side effects. Our strategy expands the application of CDs as drug carriers and provides new insights into the development of CD chemistry.
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Affiliation(s)
- Ke Zheng
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Chemical Engineering College, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xinxin Liu
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Chemical Engineering College, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Hongyan Liu
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Chemical Engineering College, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Dianquan Dong
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Chemical Engineering College, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Linlin Li
- College of Chemistry, Fuzhou University, Fujian 350116, China
| | - Libin Jiang
- College of Chemistry, Fuzhou University, Fujian 350116, China
| | - Mingdong Huang
- College of Chemistry, Fuzhou University, Fujian 350116, China
| | - Caifeng Ding
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Chemical Engineering College, Qingdao University of Science and Technology, Qingdao 266042, China
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16
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Dutta Choudhury S, Pal H. Supramolecular and suprabiomolecular photochemistry: a perspective overview. Phys Chem Chem Phys 2021; 22:23433-23463. [PMID: 33112299 DOI: 10.1039/d0cp03981k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In this perspective review article, we have attempted to bring out the important current trends of research in the areas of supramolecular and suprabiomolecular photochemistry. Since the spans of the subject areas are very vast, it is impossible to cover all the aspects within the limited space of this review article. Nevertheless, efforts have been made to assimilate the basic understanding of how supramolecular interactions can significantly change the photophysical and other related physiochemical properties of chromophoric dyes and drugs, which have enormous academic and practical implications. We have discussed with reference to relevant chemical systems where supramolecularly assisted modulations in the properties of chromophoric dyes and drugs can be used or have already been used in different areas like sensing, dye/drug stabilization, drug delivery, functional materials, and aqueous dye laser systems. In supramolecular assemblies, along with their conventional photophysical properties, the acid-base properties of prototropic dyes, as well as the excited state prototautomerization and related proton transfer behavior of proton donor/acceptor dye molecules, are also largely modulated due to supramolecular interactions, which are often reflected very explicitly through changes in their absorption and fluorescence characteristics, providing us many useful insights into these chemical systems and bringing out intriguing applications of such changes in different applied areas. Another interesting research area in supramolecular photochemistry is the excitation energy transfer from the donor to acceptor moieties in self-assembled systems which have immense importance in light harvesting applications, mimicking natural photosynthetic systems. In this review article, we have discussed varieties of these aspects, highlighting their academic and applied implications. We have tried to emphasize the progress made so far and thus to bring out future research perspectives in the subject areas concerned, which are anticipated to find many useful applications in areas like sensors, catalysis, electronic devices, pharmaceuticals, drug formulations, nanomedicine, light harvesting, and smart materials.
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Affiliation(s)
- Sharmistha Dutta Choudhury
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai-400085, India. and Homi Bhabha National Institute, Anushaktinagar, Trombay, Mumbai-400094, India
| | - Haridas Pal
- Homi Bhabha National Institute, Anushaktinagar, Trombay, Mumbai-400094, India and Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai-400085, India.
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17
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Inoue Y, Suzuki R, Murata I, Nomura H, Isshiki Y, Kanamoto I. Evaluation of Antibacterial Activity Expression of the Hinokitiol/Cyclodextrin Complex Against Bacteria. ACS OMEGA 2020; 5:27180-27187. [PMID: 33134678 PMCID: PMC7594135 DOI: 10.1021/acsomega.0c03222] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 10/06/2020] [Indexed: 05/12/2023]
Abstract
The purpose of this study was to assess the antimicrobial activity of a solid dispersion prepared by mixing and grinding hinokitiol (HT) with α-cyclodextrin (αCD), β-cyclodextrin (βCD), or γ-cyclodextrin (γCD). Antimicrobial activity was evaluated by calculating the minimum inhibitory concentration (MIC) and evaluating the change in the number of bacteria over time. The test microbes used were two Gram-positive bacteria (Bacillus subtilis and Staphylococcus aureus), two Gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa), and two fungi (Candida albicans and Aspergillus brasiliensis). Calculation of the MIC value of HT using the agar dilution method revealed that the MIC of HT/CD inclusion complexes was lower than that of HT alone. HT irreversibly inhibited the growth of microorganisms in a short amount of time. HT/CD complexes retained the antimicrobial activity of HT as a result of including HT in a CD complex. These results suggest that inclusion of HT, an antimicrobial component, using CDs could lead to appropriate control of the drug release rate and efficient display of antimicrobial activity.
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Affiliation(s)
- Yutaka Inoue
- Laboratory
of Drug Safety Management, Faculty of Pharmacy and Pharmaceutical
Sciences, Josai University, 1-1 Keyakidai, Sakado-shi, Saitama 3500295, Japan
- . Tel: +81-49-271-7317. Fax: +81-49-271-7317
| | - Rina Suzuki
- Laboratory
of Drug Safety Management, Faculty of Pharmacy and Pharmaceutical
Sciences, Josai University, 1-1 Keyakidai, Sakado-shi, Saitama 3500295, Japan
| | - Isamu Murata
- Laboratory
of Drug Safety Management, Faculty of Pharmacy and Pharmaceutical
Sciences, Josai University, 1-1 Keyakidai, Sakado-shi, Saitama 3500295, Japan
| | - Harue Nomura
- Department
of Microbiology, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado-shi, Saitama 3500295, Japan
| | - Yasunori Isshiki
- Department
of Microbiology, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado-shi, Saitama 3500295, Japan
| | - Ikuo Kanamoto
- Laboratory
of Drug Safety Management, Faculty of Pharmacy and Pharmaceutical
Sciences, Josai University, 1-1 Keyakidai, Sakado-shi, Saitama 3500295, Japan
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18
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Kiss K, Vass P, Farkas A, Hirsch E, Szabó E, Mező G, Nagy ZK, Marosi G. A solid doxycycline HP-β-CD formulation for reconstitution (i.v. bolus) prepared by scaled-up electrospinning. Int J Pharm 2020; 586:119539. [DOI: 10.1016/j.ijpharm.2020.119539] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 05/19/2020] [Accepted: 06/08/2020] [Indexed: 01/03/2023]
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19
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Olusegun SJ, Mohallem NDS. Comparative adsorption mechanism of doxycycline and Congo red using synthesized kaolinite supported CoFe 2O 4 nanoparticles. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 260:114019. [PMID: 32000027 DOI: 10.1016/j.envpol.2020.114019] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 01/04/2020] [Accepted: 01/17/2020] [Indexed: 05/18/2023]
Abstract
Kaolinite supported CoFe2O4 (KCF) was synthesized and employed to adsorb doxycycline (DOX), an antibiotic and Congo red (CR), a dye from aqueous solution. The prepared KCF nanocomposite was treated in a muffle furnace at 300, 500 and 700 °C, and thereafter characterized. X-ray diffractogram revealed structural damage of kaolinite and appearance of distinct peaks of CoFe2O4 with an increase in calcination temperature, while transmission electron microscopy (TEM) images showed that CoFe2O4 nanoparticles were supported on the lamellar surface of kaolinites. Comparative adsorption mechanism of the two targeted contaminants showed that adsorption of DOX was influenced by hydrogen bond and n-π interaction, while that of CR was due to hydrophobic interaction and hydrogen bond. However, the adsorption of the two contaminants was best fitted to the isotherm that was proposed by Langmuir, with a monolayer maximum adsorption capacity of 400 mg g-1 at 333 K for DOX, and 547 mg g-1 at 298 K for CR. The removal of DOX from aqueous solution was favored by an increase in temperature (endothermic), while that of CR was exothermic. Thermodynamics studies confirmed that the adsorption of the two contaminants is feasible and spontaneous. The presence of natural organic matter (NOM) did not affect the removal of the two contaminants. Regeneration and reusability study showed that KCF is economically viable. Therefore, introducing inorganic particles like cobalt ferrite into the matrix of kaolinites provides a composite with promising adsorption capacity.
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Affiliation(s)
- Sunday J Olusegun
- Universidade Federal de Minas Gerais, Departamento de Química, Laboratório de Materiais Nanoestruturados, Belo Horizonte, Brazil.
| | - Nelcy D S Mohallem
- Universidade Federal de Minas Gerais, Departamento de Química, Laboratório de Materiais Nanoestruturados, Belo Horizonte, Brazil
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20
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Pal P, Nguyen QC, Benton AH, Marquart ME, Janorkar AV. Drug‐Loaded Elastin‐Like Polypeptide–Collagen Hydrogels with High Modulus for Bone Tissue Engineering. Macromol Biosci 2019; 19:e1900142. [DOI: 10.1002/mabi.201900142] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 06/21/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Pallabi Pal
- Biomedical Materials ScienceSchool of DentistryUniversity of Mississippi Medical Center 2500 North State Street Jackson MS 39216 USA
| | - Quynh C. Nguyen
- Biomedical Materials ScienceSchool of DentistryUniversity of Mississippi Medical Center 2500 North State Street Jackson MS 39216 USA
| | - Angela H. Benton
- Microbiology and ImmunologySchool of MedicineUniversity of Mississippi Medical Center 2500 North State Street Jackson MS 39216 USA
| | - Mary E. Marquart
- Microbiology and ImmunologySchool of MedicineUniversity of Mississippi Medical Center 2500 North State Street Jackson MS 39216 USA
| | - Amol V. Janorkar
- Biomedical Materials ScienceSchool of DentistryUniversity of Mississippi Medical Center 2500 North State Street Jackson MS 39216 USA
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21
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Cui S, Sun X, Li K, Gou D, Zhou Y, Hu J, Liu Y. Polylactide nanofibers delivering doxycycline for chronic wound treatment. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 104:109745. [PMID: 31499963 DOI: 10.1016/j.msec.2019.109745] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Revised: 05/08/2019] [Accepted: 05/12/2019] [Indexed: 01/13/2023]
Abstract
Chronic wounds are of high incidence, difficult to heal, and can cause serious consequences if not properly treated. Doxycycline (DCH) is a broad-spectrum antibiotic and matrix metalloproteinases inhibitor, which has prominent efficacy for chronic wound treatment. Topical DCH treatment is the common administration route for chronic wounds in clinic but may result in low therapeutic efficacy and cause skin irritation at high DCH concentration, since it is difficult to control local drug concentration in the wounds and maintain the effective DCH concentration for a long time. In this study, we prepared DCH-encapsulated polylactide (DCH/PLA) nanofibers by a simple electrospinning method. Imaging studies showed that smooth and continuous DCH/PLA nanofibers with homogeneous DCH distribution were obtained at varied DCH loading content in the range of 5-30%. Mechanical property, water vapour permeability and absorbency of these nanofibers could meet the requirement as wound dressings. By adjusting DCH loading content, the wettability of the nanofibers could be transferred from hydrophobic to hydrophilic, and the release rate of DCH could be controlled in a sustained manner from three days to two weeks. Results of cytotoxicity and antibacterial test indicated that DCH/PLA nanofibers showed good cytocompatibility to L929 mouse fibroblast cells and exhibited positive antibacterial activity against Escherichia coli, suggesting its ability to treat/prevent infectious wounds. For full-thickness wound treatment of diabetic rats, DCH/PLA nanofiber mats can speed up wound healing to a higher extent than topical DCH treatment, due to the sustained release of DCH with less side effects. Our results indicate that DCH/PLA nanofiber mats hold great potential as wound dressings for chronic wound treatment.
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Affiliation(s)
- Sisi Cui
- Key Laboratory of UV-Emitting Materials and Technology, Northeast Normal University, Ministry of Education, Changchun, Jilin 130024, China; School of Life Sciences, Northeast Normal University, Changchun, Jilin 130024, China
| | - Xue Sun
- Key Laboratory of UV-Emitting Materials and Technology, Northeast Normal University, Ministry of Education, Changchun, Jilin 130024, China
| | - Ke Li
- Key Laboratory of UV-Emitting Materials and Technology, Northeast Normal University, Ministry of Education, Changchun, Jilin 130024, China
| | - Dongxia Gou
- School of Life Sciences, Northeast Normal University, Changchun, Jilin 130024, China
| | - Yifa Zhou
- School of Life Sciences, Northeast Normal University, Changchun, Jilin 130024, China
| | - Junli Hu
- Key Laboratory of UV-Emitting Materials and Technology, Northeast Normal University, Ministry of Education, Changchun, Jilin 130024, China.
| | - Yichun Liu
- Key Laboratory of UV-Emitting Materials and Technology, Northeast Normal University, Ministry of Education, Changchun, Jilin 130024, China.
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Fan Y, Gao RH, Huang Y, Bian B, Tao Z, Xiao X. Supramolecular Fluorescence Probe Based on Twisted Cucurbit[14]uril for Sensing Fungicide Flusilazole. Front Chem 2019; 7:154. [PMID: 30949474 PMCID: PMC6437033 DOI: 10.3389/fchem.2019.00154] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 03/01/2019] [Indexed: 11/13/2022] Open
Abstract
The host-guest complex of the common dye, thioflavin T (ThT), and twisted cucurbit[14]uril (tQ[14]) was selected as a fluorescent probe to determine non-fluorescent triazole fungicides, including flusilazole, azaconazole, triadimefon, tebuconazole, tricyclazole, flutriafol, penconazole, and triadimenol isomer A, in an aqueous solution. The experimental results reveal that the ThT@tQ[14] probe selectively responded to flusilazole with significant fluorescence quenching and a detection limit of 1.27 × 10-8 mol/L. In addition, the response mechanism involves not only a cooperation interaction-ThT occupies a side-cavity of the tQ[14] host and the triazole fungicide occupies another side-cavity of the tQ[14] host-but also a competition interaction in which both ThT and the triazole fungicide occupy the side-cavities of the tQ[14] host.
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Affiliation(s)
- Ying Fan
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China.,Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, China
| | - Rui-Han Gao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, China
| | - Ying Huang
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, China
| | - Bing Bian
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, China
| | - Zhu Tao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, China
| | - Xin Xiao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, China
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Kogawa AC, Peltonen L, Antonio SG, Salgado HRN. Submission of Rifaximin to Different Techniques: Characterization, Solubility Study, and Microbiological Evaluation. AAPS PharmSciTech 2019; 20:125. [PMID: 30805802 DOI: 10.1208/s12249-019-1329-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 02/03/2019] [Indexed: 12/31/2022] Open
Abstract
Rifaximin, an oral antimicrobial drug, is marketed as 200-mg tablets. The daily dose ranges from 600 mg (1 tablet 3 times a day) to 800 mg (2 tablets twice a day). It is used for a wide range of ages, from adults to children, since it is indicated for the treatment of hepatic encephalopathy, travelers' diarrhea, irritable bowel syndrome, Clostridium difficile, ulcerative colitis, and acute diarrhea. The success of pharmacotherapy will depend on correct fulfillment of drug administration; however, it becomes difficult when the tablets are large and the doses are frequent. Rifaximin belongs to class IV according to the Biopharmaceutic Classification System (BCS), meaning that it is both poorly soluble and poorly permeable. Thus, in this study, solubility of rifaximin was improved by its complexation to β-cyclodextrin by (i) phase solubility diagram, (ii) malaxation, and (iii) decreasing particle size by wet milling. Improved solubility provides lower doses and facilitates compliance with pharmacotherapy. The products formed were analyzed by spectrophotometry in the infrared region (FT-IR), differential scanning calorimetry (DSC), and X-ray diffraction (XRD). Also, their solubility and microbiological activity were determined. The products obtained in all techniques were more soluble than the free drug; they presented higher thermal stability and antimicrobial potency was approximately 100% with all the formulations. It is important to highlight that the treatment failure not only affects the quality of life of the patients, but also contributes significantly to the economic burden of the health system. Therefore, these findings are extremely interesting, both from a technological and financial point of view.
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Popielec A, Agnes M, Yannakopoulou K, Fenyvesi É, Loftsson T. Effect of β- and γ-cyclodextrins and their methylated derivatives on the degradation rate of benzylpenicillin. J INCL PHENOM MACRO 2018. [DOI: 10.1007/s10847-018-0816-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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26
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Popielec A, Agnes M, Yannakopoulou K, Fenyvesi É, Loftsson T. Self-assembled cyclodextrin-based nanoparticles for meropenem stabilization. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.02.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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27
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Photostabilization strategies of photosensitive drugs. Int J Pharm 2018; 541:19-25. [DOI: 10.1016/j.ijpharm.2018.02.012] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 02/07/2018] [Accepted: 02/09/2018] [Indexed: 02/03/2023]
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28
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Gao ZZ, Kan J, Tao Z, Bian B, Xiao X. A stimuli-responsive supramolecular assembly between inverted cucurbit[7]uril and hemicyanine dye. NEW J CHEM 2018. [DOI: 10.1039/c8nj03344g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of inverted curcurbit[7]uril (iQ[7]) on the binding mode of 2-(4-(dimethylamino)styryl)-1-methylpyridinium (DASPMI) was determined in this study.
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Affiliation(s)
- Zhong-Zheng Gao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province
- Guizhou University
- Guiyang 550025
- China
| | - Jinglan Kan
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Zhu Tao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province
- Guizhou University
- Guiyang 550025
- China
| | - Bing Bian
- College of Chemistry and Environmental Engineering, Shandong University of Science and Technology
- Qingdao 266510
- China
| | - Xin Xiao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province
- Guizhou University
- Guiyang 550025
- China
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29
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Janga KY, King T, Ji N, Sarabu S, Shadambikar G, Sawant S, Xu P, Repka MA, Murthy SN. Photostability Issues in Pharmaceutical Dosage Forms and Photostabilization. AAPS PharmSciTech 2018; 19:48-59. [PMID: 28905241 DOI: 10.1208/s12249-017-0869-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 08/23/2017] [Indexed: 11/30/2022] Open
Abstract
Photodegradation is one of the major pathways of the degradation of drugs. Some therapeutic agents and excipients are highly sensitive to light and undergo significant degradation, challenging the quality and the stability of the final product. The adequate knowledge of photodegradation mechanisms and kinetics of photosensitive therapeutic entities or excipients is a pivotal aspect in the product development phase. Hence, various pharmaceutical regulatory agencies, across the world, mandated the industries to assess the photodegradation of pharmaceutical products from manufacturing stage till storage, as per the guidelines given in the International Conference on Harmonization (ICH). Recently, numerous formulation and/or manufacturing strategies has been investigated for preventing the photodegradation and enhancing the photostability of photolabile components in the pharmaceutical dosage forms. The primary focus of this review is to discuss various photodegradation mechanisms, rate kinetics, and the factors that influence the rate of photodegradation. We also discuss light-induced degradation of photosensitive lipids and polymers. We conclude with a brief note on different approaches to improve the photostability of photosensitive products.
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Ioele G, De Luca M, Garofalo A, Ragno G. Photosensitive drugs: a review on their photoprotection by liposomes and cyclodextrins. Drug Deliv 2017; 24:33-44. [PMID: 29069944 PMCID: PMC8812581 DOI: 10.1080/10717544.2017.1386733] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Affiliation(s)
- Giuseppina Ioele
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, Rende (CS), Italy
| | - Michele De Luca
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, Rende (CS), Italy
| | - Antonio Garofalo
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, Rende (CS), Italy
| | - Gaetano Ragno
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, Rende (CS), Italy
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Light-sensitive drugs in topical formulations: stability indicating methods and photostabilization strategies. Future Med Chem 2017; 9:1795-1808. [PMID: 28925725 DOI: 10.4155/fmc-2017-0105] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Photostability tests applied on commercial specialties for topical use have demonstrated a greater vulnerability of several drugs, due to greater exposure to light than other pharmaceutical forms. Photodegradation of a drug can considerably modify its pharmacokinetic behavior by varying the therapeutic index. The evaluation of the degradation profile of a drug, according to the ICH rules, is of primary importance in developing an appropriate topical formulation. Advanced strategies have been proposed to increase the protection from the light of the photolabile drugs. Supramolecular systems have been investigated to improve both pharmacokinetic profile and photostability. In this review, the more recent stability-monitoring methods for the analysis of drugs in topical formulations are collected and the main approaches for the drug photostabilization are discussed.
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Marques MS, Zepon KM, Petronilho FC, Soldi V, Kanis LA. Characterization of membranes based on cellulose acetate butyrate/poly(caprolactone)triol/doxycycline and their potential for guided bone regeneration application. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:365-373. [DOI: 10.1016/j.msec.2017.03.095] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 12/20/2016] [Accepted: 03/12/2017] [Indexed: 01/22/2023]
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Popielec A, Loftsson T. Effects of cyclodextrins on the chemical stability of drugs. Int J Pharm 2017; 531:532-542. [PMID: 28596139 DOI: 10.1016/j.ijpharm.2017.06.009] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 05/30/2017] [Accepted: 06/03/2017] [Indexed: 12/21/2022]
Abstract
Cyclodextrins (CDs) are enabling pharmaceutical excipients that can enhance both solubility and stability of wide variety of drugs in aqueous solutions through formation of drug/CD inclusion complexes where apolar moieties of the drug molecules are located inside the CD cavity. In properly designed pharmaceutical formulations CDs will improve physiochemical properties of lipophilic drugs without affecting their intrinsic ability to permeate biological membranes. Here the effect of CD complexes on the chemical stability of drugs is reviewed. Numerous studies shown that in aqueous solutions CD complexation can hamper hydrolysis, oxidation, photodegradation, isomerization and enzyme catalyzed degradation of dissolved drugs. However, some drugs, such as β-lactam antibiotics, can under certain conditions undergo CD catalyzed degradation in aqueous solutions. Also, some drugs that are stabilized by CDs in aqueous solutions are destabilized by the same CDs in solid dosage forms. Thus, the effects of CDs on drug stability have to be tested and verified in the final drug formulation and under the recommended storage conditions.
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Affiliation(s)
- Agnieszka Popielec
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, IS-107 Reykjavik, Iceland
| | - Thorsteinn Loftsson
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, IS-107 Reykjavik, Iceland.
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Thakare SS, Chakraborty G, Krishnakumar P, Ray AK, Maity DK, Pal H, Sekar N. Supramolecularly Assisted Modulation of Optical Properties of BODIPY–Benzimidazole Conjugates. J Phys Chem B 2016; 120:11266-11278. [DOI: 10.1021/acs.jpcb.6b08429] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | - Dilip K. Maity
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | | | - Nagayan Sekar
- Institute of Chemical Technology, Mumbai 400019, India
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Imperiale JC, Sosnik AD. Cyclodextrin complexes for treatment improvement in infectious diseases. Nanomedicine (Lond) 2016; 10:1621-41. [PMID: 26008196 DOI: 10.2217/nnm.15.16] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Infectious diseases are a heterogeneous group of maladies that represent a serious burden to healthcare systems worldwide. Most of the available antimicrobial drugs display poor biopharmaceutical properties that compromise their effectiveness. Cyclodextrins (CDs) are cyclic oligosaccharides of glucopyranose formed by a variable number of repeating units that combine a hydrophilic surface with a hydrophobic cavity. The production of drug/CD complexes has become one of the most extensively investigated technology approaches to improve the stability, solubility, dissolution rate and bioavailability of drugs. The present work overviews the applications of CDs for the formulation of anti-infective agents along with the most relevant administration routes. Finally, an update on the complexes with CDs available on the market to treat infectious diseases is presented.
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