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Chen X, Ding F, Hou X, Ren X. Halloysite-based inorganic-organic hybrid coatings for durable flame retardant, hydrophobic and antibacterial properties of cotton fabrics. Int J Biol Macromol 2024:134357. [PMID: 39102916 DOI: 10.1016/j.ijbiomac.2024.134357] [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: 05/20/2024] [Revised: 07/07/2024] [Accepted: 07/29/2024] [Indexed: 08/07/2024]
Abstract
Developing durable protective cotton fabrics (CF) against potential environmental dangers such as fire hazards and bacterial growth remains an imperative but tough challenge. In this study, flame retardant, antibacterial and hydrophobic CF were successfully prepared via two-step coating. The inner coating entailed polyelectrolyte complexes consisting of polyethyleneimine and ammonium polyphosphate with the goal of enhancing the flame retardancy of CF. Halloysite nanotubes (HNTs), a kind of tubular silicate mineral, were creatively modified and introduced to multifunctional coatings to improve flame retardant and antibacterial properties of CF. N-halamine modified HNTs (HNTs-EA-Cl) and polydimethylsiloxane were applied as the outer coating to endow CF with antibacterial and hydrophobic properties and further improve the flame retardancy of CF. After halloysite-based inorganic-organic hybrid coatings, the limiting oxygen index of the treated samples (PAHP-CF) was over 28 %, and the release of heat and smoke was significantly inhibited. PAHP-CF could inactivate 100 % E. coli and S. aureus within 2 h. More importantly, PAHP-CF showed excellent hydrophobicity with a water contact angle of 148° and exhibited great prevention of bacterial adhesion. PAHP-CF exhibited excellent washing durability undergoing 5 washing cycles. This study promotes the development of multifunctional coatings and offers a new way to manufacture multifunctional cotton fabrics.
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Affiliation(s)
- Xiaoyan Chen
- Key Laboratory of Eco-textiles of Ministry of Education, College of Textile Science and Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Fang Ding
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Key Laboratory of Textile Fiber and Products, Ministry of Education, School of Textile Science and Engineering, Wuhan Textile University, Wuhan, Hubei 430200, China
| | - Xiuliang Hou
- Key Laboratory of Eco-textiles of Ministry of Education, College of Textile Science and Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China.
| | - Xuehong Ren
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Key Laboratory of Textile Fiber and Products, Ministry of Education, School of Textile Science and Engineering, Wuhan Textile University, Wuhan, Hubei 430200, China.
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2
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Feng Y, Chen X, He RR, Liu Z, Lvov YM, Liu M. The Horizons of Medical Mineralogy: Structure-Bioactivity Relationship and Biomedical Applications of Halloysite Nanoclay. ACS NANO 2024. [PMID: 39016265 DOI: 10.1021/acsnano.4c04372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/18/2024]
Abstract
Medical mineralogy explores the interactions between natural minerals and living organisms such as cells, tissues, and organs and develops therapeutic and diagnostic applications in drug delivery, medical devices, and healthcare materials. Many minerals (especially clays) have been recognized for pharmacological activities and therapeutic potential. Halloysite clay (Chinese medicine name: Chishizhi), manifested as one-dimensional aluminum silicate nanotubes (halloysite nanotubes, HNTs), has gained applications in hemostasis, wound repair, gastrointestinal diseases, tissue engineering, detection and sensing, cosmetics, and daily chemicals formulations. Various biomedical applications of HNTs are derived from hollow tubular structures, high mechanical strength, good biocompatibility, bioactivity, and unique surface characteristics. This natural nanomaterial is safe, abundantly available, and may be processed with environmentally safe green chemistry methods. This review describes the structure and physicochemical properties of HNTs relative to bioactivity. We discuss surface area, porosity and surface defects, hydrophilicity, heterogeneity and charge of external and internal surfaces, as well as biosafety. The paper provides comprehensive guidance for the development of this tubule nanoclay and its advanced biomedical applications for clinical diagnosis and therapy.
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Affiliation(s)
- Yue Feng
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 511443, China
- International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Xiangyu Chen
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 511443, China
| | - Rong-Rong He
- Guangdong Engineering Research Center of Chinese Medicine and Disease Susceptibility, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Zhongqiu Liu
- International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Yuri M Lvov
- Institute for Micromanufacturing and Biomedical Engineering Program, Louisiana Tech University, Ruston, Louisiana 71272, United States
| | - Mingxian Liu
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 511443, China
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3
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Majeed S, Qaiser M, Shahwar D, Mahmood K, Ahmed N, Hanif M, Abbas G, Shoaib MH, Ameer N, Khalid M. Chitosan-coated halloysite nanotube magnetic microspheres for carcinogenic colorectal hemorrhage and liver laceration in albino rats. RSC Adv 2023; 13:21521-21536. [PMID: 37469962 PMCID: PMC10352712 DOI: 10.1039/d3ra01581e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 06/16/2023] [Indexed: 07/21/2023] Open
Abstract
Carcinogenic colorectal hemorrhage can cause severe blood loss and longitudinal ulcer, which ultimately become fatal if left untreated. The present study was aimed to formulate targeted release gemcitabine (GC)-containing magnetic microspheres (MM) of halloysite nanotubes (MHMG), chitosan (MCMG), and their combination (MHCMG). The preparation of MM by magnetism was confirmed by vibrating sample magnetometry (VSM), the molecular arrangement of NH2, alumina, and silica groups was studied by X-ray diffraction (XRD) and energy-dispersive spectroscopy (EDS), the hollow spherical nature of the proposed MM was observed by scanning electron microscopy (SEM), functional groups were characterized by Fourier transform infrared (FTIR) spectroscopy and thermochemical modification was studied by thermogravimetric analysis (TGA). In vitro thrombus formation showed a decreasing trend of hemostatic time for MMs in the order of MHMG3 < MCMG3 < MHCMG7, which was confirmed by whole blood clotting kinetics. Interestingly, rat tail amputation and liver laceration showed 3 folds increased clotting efficiency of optimized MHCMG7 compared to that of control. In vivo histopathological studies and cell viability assays confirmed the regeneration of epithelial cells. The negligible systemic toxicity of MHCMG7, more than 90% entrapment of GC and high % release in alkaline medium made the proposed MM an excellent candidate for the control of hemorrhage in colorectal cancer. Conclusively, the healing of muscularis and improved recovery of the colon from granulomas ultimately improved the therapeutic effects of GC-containing MMs. The combination of both HNT and CTS microspheres made them more targeted.
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Affiliation(s)
- Sajid Majeed
- Department of Pharmaceutics, Faculty of Pharmacy, Bahauddin Zakariya University Multan Pakistan
- Institute of Chemical Sciences, Bahauddin Zakariya University Multan Pakistan
| | - Muhammad Qaiser
- Department of Pharmaceutics, Faculty of Pharmacy, Bahauddin Zakariya University Multan Pakistan
- Drug Testing Laboratory Punjab Multan Pakistan
| | - Dure Shahwar
- Department of Pharmaceutics, Faculty of Pharmacy, Bahauddin Zakariya University Multan Pakistan
| | - Khalid Mahmood
- Institute of Chemical Sciences, Bahauddin Zakariya University Multan Pakistan
| | - Nadeem Ahmed
- Center for Excellence in Molecular Biology, University of Punjab Pakistan
| | - Muhammad Hanif
- Department of Pharmaceutics, Faculty of Pharmacy, Bahauddin Zakariya University Multan Pakistan
| | - Ghulam Abbas
- Faculty of Pharmacy, GOVT College University Faisalabad Pakistan
| | | | - Nabeela Ameer
- Department of Pharmaceutics, Faculty of Pharmacy, Bahauddin Zakariya University Multan Pakistan
| | - Muhammad Khalid
- Department of Chemistry, Khwaja Fareed University of Engineering and Information Technology Rahim Yar Khan Pakistan
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Hassan MA, Tamer TM, Omer AM, Baset WMA, Abbas E, Mohy-Eldin MS. Therapeutic potential of two formulated novel chitosan derivatives with prominent antimicrobial activities against virulent microorganisms and safe profiles toward fibroblast cells. Int J Pharm 2023; 634:122649. [PMID: 36709834 DOI: 10.1016/j.ijpharm.2023.122649] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 01/19/2023] [Accepted: 01/22/2023] [Indexed: 01/27/2023]
Abstract
The development of new antimicrobial agents has been drawing considerable attention due to the extreme escalation of multi-drug resistant microorganisms. We thus sought to ameliorate the antimicrobial activities of the chitosan (Cs) biopolymer by coupling chitosan with cyclohexanone and 2-N-methyl pyrrolidone, synthesizing two novel Schiff bases (CsSB1 and CsSB2), respectively. FT-IR, TGA, DSC, SEM, and potentiometric titration were employed to characterize the formulated chitosan derivatives. The findings exposed that the degrees of deacetylation were 88.12% and 89.98% for CsSB1 and CsSB2, respectively. The antimicrobial capacities of CsSB1 and CsSB2 were substantially enhanced compared with prime chitosan. Furthermore, the CsSB1 and CsSB2 demonstrated minimum inhibitory concentrations (MIC) of 50 µg/ml in relation to all studied microorganisms, whereas chitosan revealed MIC value of 50 µg/ml only for E. coli. Furthermore, CsSB1 with a concentration of 250 µg/ml manifested the highest antibacterial activity against Gram-positive bacteria. Correspondingly, CsSB2 revealed a comparable trend of microbial hindrance with lower activities. Besides, the two derivatives could thwart the growth of Candida albicans (C. albicans). The cytotoxicity assay of the biomaterials accentuated their biocompatibility with fibroblasts. Collectively, the two formulated chitosan derivatives could competently rival the native chitosan, particularly for future applications in wound healing.
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Affiliation(s)
- Mohamed A Hassan
- Protein Research Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, P.O. Box: 21934 Alexandria, Egypt.
| | - Tamer M Tamer
- Polymer Materials Research Department, Advanced Technologies and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, P.O. Box: 21934 Alexandria, Egypt.
| | - Ahmed M Omer
- Polymer Materials Research Department, Advanced Technologies and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, P.O. Box: 21934 Alexandria, Egypt
| | - Walid M A Baset
- National Organization for Drug Control and Research (NODCAR), 51 Wezaret El-Zeraa st., Dokki, Cairo, Egypt
| | - Eman Abbas
- Zoology Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Mohamed S Mohy-Eldin
- Polymer Materials Research Department, Advanced Technologies and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, P.O. Box: 21934 Alexandria, Egypt
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Safaa Hamdi D, Basim Mohsin Mohamed M. Formulation of metoclopramide HCl gastroretentive film and in vitro- in silico prediction using Gastroplus® PBPK software. Saudi Pharm J 2022; 30:1816-1824. [PMID: 36601510 PMCID: PMC9805977 DOI: 10.1016/j.jsps.2022.10.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 10/26/2022] [Indexed: 11/09/2022] Open
Abstract
The new trends in pharmaceutical studies focus on targeting drug delivery and computer software that help in the body environment simulation, such as Gastroplus® software. The interest of this study is to prepare a gastroretentive film of metoclopramide HCl (MTC) that was followed by applying the in silico approach to estimate the in vivo prepared formulations. The films were prepared from HPMC E5 and sodium alginate polymers as primary polymers with the aid of secondary polymers. The sodium alginate high proportions films showed instant and long floating duration reaching 24 h but with variable folding endurance. Moreover, sodium alginate films with their secondary polymers carbopol and HPMC E5 slowed the release of MTC. The floating and slow-release patterns assessed the gastroretentive properties of sodium alginate films and were further examined by a mucoadhesive study that guaranteed mucosal adhesion, and the film's FESEM images showed similar top morphology, but different side view structures. Last, the pharmacokinetic profile of selected films that approached the gastroretentive properties was in silico predicted depending on in vitro release study and floating duration employing the physiological-based pharmacokinetic model in Gastroplus® software. The model determines this prediction found successfully of intravenous and immediate oral release tablets (10 and 30 mg) of MTC. The simulation showed a high amount of MTC retained for long periods in the stomach to Sod.Alginate-3, Sod.Alginate-8, and Sod.Alginate-10 films (films of secondary polymers carbopol and HPMC E5) aid in reaching the optimum site of absorption jejunum 1 due to the slow MTC release.
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Dube S, Rawtani D, Khatri N, Parikh G. A deep delve into the chemistry and biocompatibility of halloysite nanotubes: A new perspective on an idiosyncratic nanocarrier for delivering drugs and biologics. Adv Colloid Interface Sci 2022; 309:102776. [DOI: 10.1016/j.cis.2022.102776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 11/26/2022]
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Sahiner M, Demirci S, Sahiner N. Enhanced Bioactive Properties of Halloysite Nanotubes via Polydopamine Coating. Polymers (Basel) 2022; 14:polym14204346. [PMID: 36297924 PMCID: PMC9607515 DOI: 10.3390/polym14204346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/06/2022] [Accepted: 10/13/2022] [Indexed: 11/07/2022] Open
Abstract
Halloysite nanotubes (HNT) were coated five times with dopamine (DOPA) in a tris buffer medium at pH 8.5 to acquire polydopamine-coated HNTs (PDOPA@HNT), e.g., PDOPA1@HNT, PDOPA3@HNT, and PDOPA5@HNT. Upon coating HNT with PDOPA, the surface area, pore volume, and pore size were decreased depending on the number of coatings. While the surface area of HNT was 57.9 m2/g, by increasing the number of coatings from 1 to 5, it was measured as 55.9, 53.4, 53.3, 47.4, and 46.4 m2/g, respectively. The isoelectric point (IEP) for HNTs was determined as 4.68, whereas these values are estimated as 2.31 for PDOPA1@HNTs, 3.49 for PDOPA3@HNT, and 3.55 for PDOPA5@HNT. Three different antioxidant studies were conducted for HNT and PDOPA@HNT, and the total phenol (TPC) value of HNT was found to be 150.5 ± 45.9 µmol gallic acid (GA) equivalent. The TPC values for PDOPA1@HNT, PDOPA3@HNT and PDOPA5@HNT coatings were found to be 405.5 ± 25.0, 750.0 ± 69.9, and 1348.3 ± 371.7 µmol GA equivalents, respectively. The Fe(II) chelation capacity of HNT was found to be 20.5% ± 1.2%, while the PDOPA1@HNT, PDOPA3@HNT and PDOPA5@HNT values were found to be 49.9 ± 6.5, 36.6 ± 12.7 and 25.4 ± 1.2%, respectively. HNT and PDOPA@HNTs inhibited the α-glucosidase (AG) enzyme to greater extents than acetylcholinesterase (AChE). As a result, the DOPA modification of HNTs was rendered to provide additional characteristics, e.g., antioxidant properties and higher AChE and AG enzymes inhibition capabilities. Therefore, PDOPA@HNTs have great potential as biomaterials.
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Affiliation(s)
- Mehtap Sahiner
- Department of Bioengineering, Faculty of Engineering, Canakkale Onsekiz Mart University Terzioglu Campus, Canakkale 17100, Turkey
| | - Sahin Demirci
- Department of Chemistry & Nanoscience and Technology Research and Application Center, Canakkale Onsekiz Mart University Terzioglu Campus, Canakkale 17100, Turkey
| | - Nurettin Sahiner
- Department of Chemistry & Nanoscience and Technology Research and Application Center, Canakkale Onsekiz Mart University Terzioglu Campus, Canakkale 17100, Turkey
- Department of Ophthalmology, Morsani College of Medicine, University of South Florida, 12901 Bruce B. Downs Blv., MDC 21, Tampa, FL 33612, USA
- Correspondence: ; Tel.: +1-813-974-0135; Fax: +1-813-974-5621
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de Lima CSA, Varca JPRO, Alves VM, Nogueira KM, Cruz CPC, Rial-Hermida MI, Kadłubowski SS, Varca GHC, Lugão AB. Mucoadhesive Polymers and Their Applications in Drug Delivery Systems for the Treatment of Bladder Cancer. Gels 2022; 8:gels8090587. [PMID: 36135300 PMCID: PMC9498303 DOI: 10.3390/gels8090587] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/01/2022] [Accepted: 09/08/2022] [Indexed: 11/23/2022] Open
Abstract
Bladder cancer (BC) is the tenth most common type of cancer worldwide, affecting up to four times more men than women. Depending on the stage of the tumor, different therapy protocols are applied. Non-muscle-invasive cancer englobes around 70% of the cases and is usually treated using the transurethral resection of bladder tumor (TURBIT) followed by the instillation of chemotherapy or immunotherapy. However, due to bladder anatomy and physiology, current intravesical therapies present limitations concerning permeation and time of residence. Furthermore, they require several frequent catheter insertions with a reduced interval between doses, which is highly demotivating for the patient. This scenario has encouraged several pieces of research focusing on the development of drug delivery systems (DDS) to improve drug time residence, permeation capacity, and target release. In this review, the current situation of BC is described concerning the disease and available treatments, followed by a report on the main DDS developed in the past few years, focusing on those based on mucoadhesive polymers as a strategy. A brief review of methods to evaluate mucoadhesion properties is also presented; lastly, different polymers suitable for this application are discussed.
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Affiliation(s)
- Caroline S. A. de Lima
- Nuclear and Energy Research Institute, IPEN-CNEN/SP—University of São Paulo, Av. Prof. Lineu Prestes, No. 2242, Cidade Universitária, São Paulo 05508-000, Brazil
- Correspondence:
| | - Justine P. R. O. Varca
- Nuclear and Energy Research Institute, IPEN-CNEN/SP—University of São Paulo, Av. Prof. Lineu Prestes, No. 2242, Cidade Universitária, São Paulo 05508-000, Brazil
| | - Victória M. Alves
- Nuclear and Energy Research Institute, IPEN-CNEN/SP—University of São Paulo, Av. Prof. Lineu Prestes, No. 2242, Cidade Universitária, São Paulo 05508-000, Brazil
| | - Kamila M. Nogueira
- Nuclear and Energy Research Institute, IPEN-CNEN/SP—University of São Paulo, Av. Prof. Lineu Prestes, No. 2242, Cidade Universitária, São Paulo 05508-000, Brazil
| | - Cassia P. C. Cruz
- Nuclear and Energy Research Institute, IPEN-CNEN/SP—University of São Paulo, Av. Prof. Lineu Prestes, No. 2242, Cidade Universitária, São Paulo 05508-000, Brazil
| | - M. Isabel Rial-Hermida
- I+D Farma Group (GI-1645), Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Instituto de Materiales (iMATUS) and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Sławomir S. Kadłubowski
- Institute of Applied Radiation Chemistry (IARC), Lodz University of Technology, Wroblewskiego No. 15, 93-590 Lodz, Poland
| | - Gustavo H. C. Varca
- Nuclear and Energy Research Institute, IPEN-CNEN/SP—University of São Paulo, Av. Prof. Lineu Prestes, No. 2242, Cidade Universitária, São Paulo 05508-000, Brazil
| | - Ademar B. Lugão
- Nuclear and Energy Research Institute, IPEN-CNEN/SP—University of São Paulo, Av. Prof. Lineu Prestes, No. 2242, Cidade Universitária, São Paulo 05508-000, Brazil
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Arshad MS, Qaiser M, Mahmood K, Shoaib MH, Ameer N, Ramzan N, Hanif M, Abbas G. Chitosan/halloysite nanotubes microcomposites: A double header approach for sustained release of ciprofloxacin and its hemostatic effects. Int J Biol Macromol 2022; 212:314-323. [PMID: 35618085 DOI: 10.1016/j.ijbiomac.2022.05.138] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 05/11/2022] [Accepted: 05/19/2022] [Indexed: 11/15/2022]
Abstract
Clotting time of lower gastro intestinal bleeding (LGIB) can be reduced by using simple, cost-effective, and naturally occurring halloysite nanotubes (HNTs). The present study aimed to decrease the clotting time by the application of chitosan (CHT) and its microcomposites (MCs) prepared by suspension emulsification technique with HNTs (CHT/HNTs MC). Physicochemical properties, X-Ray diffraction (XRD), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and percentage release of ciprofloxacin from CHT/HNTs MCs was evaluated. In-vitro procoagulant activity of CHT, HNTs and their complexes CHT/HNTs MCs was performed on rabbit blood which was confirmed by a rat tail amputation. Direct relation of HNTs was observed for the whole-blood clotting kinetics i.e., 2% HNTs showed a maximum 66.0% increase in the clotting ability as compared with pure CHT. Interestingly, rat-tail amputation studies showed comparative results of CHT, HNTs, and CHT/HNTs MCs. A total of 75% permeation of ciprofloxacin of CHT/HNTs MCs on rat intestinal membrane was observed within 3 h, confirming their SR behavior. Furthermore, improved hemostatic and clotting properties were CHT/HNTs MC1 > CHT/HNTs MC2 > CHT/HNTs MC3 > CHT > HNTs, respectively. Thus, it provided the control of bleeding disorders in LGIB with any antibacterial agents, particularly ciprofloxacin.
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Affiliation(s)
- Muhammad Shahbaz Arshad
- Department of Pharmaceutics, Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Muhammad Qaiser
- Department of Pharmaceutics, Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Khalid Mahmood
- Institute of Chemical Sciences, Bahauddin Zakariya University Multan, Pakistan
| | | | - Nabeela Ameer
- Department of Pharmaceutics, Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Nasreen Ramzan
- Department of Pharmaceutics, Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Muhammad Hanif
- Department of Pharmaceutics, Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan.
| | - Ghulam Abbas
- Faculty of Pharmacy, GOVT College University Faisalabad, Pakistan
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Farhadnejad H, Mortazavi SA, Jamshidfar S, Rakhshani A, Motasadizadeh H, Fatahi Y, Mahdieh A, Darbasizadeh B. Montmorillonite-Famotidine/Chitosan Bio-nanocomposite Hydrogels as a Mucoadhesive/Gastroretentive Drug Delivery System. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH 2022; 21:e127035. [PMID: 36060919 PMCID: PMC9420228 DOI: 10.5812/ijpr-127035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 02/18/2022] [Accepted: 03/09/2022] [Indexed: 11/16/2022]
Abstract
The main purpose of the present study was to fabricate mucoadhesive bio-nanocomposite hydrogels to prolong the drug retention time in the stomach. In these bio-nanocomposite hydrogels, chitosan (CH) was used as a bioadhesive matrix, montmorillonite (MMT) was applied to modulate the release rate, and tripolyphosphate (TPP) was the cross-linking agent. The test samples were analyzed via different methods such as X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). Drug incorporation efficacy and mucoadhesive strength of these nanocomposite hydrogel beads were studied. Swelling and in vitro drug release behaviors of these bio-nanocomposite hydrogels were evaluated in simulated gastric fluid (SGF; pH 1.2). The optimized MMT-famotidine (FMT)/CH bio-nanocomposite hydrogels displayed a controllable and sustainable drug release profile with suitable mucoadhesion and prolonged retention time in the stomach. Thus, the results demonstrated that the fabricated mucoadhesive bio-nanocomposite hydrogels could remarkably increase the therapeutic efficacy and bioavailability of FMT by the oral route.
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Affiliation(s)
- Hassan Farhadnejad
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Research and Development Department, Varian Pharmed Pharmaceutical Company, Tehran, Iran
| | - Seyed Alireza Mortazavi
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Corresponding Author: Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Sanaz Jamshidfar
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Rakhshani
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamidreza Motasadizadeh
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Yousef Fatahi
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
- Nanotechnology Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
- Universal Scientific Education and Research Network, Tehran, Iran
| | - Athar Mahdieh
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Behzad Darbasizadeh
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Cascione M, De Matteis V, Persano F, Leporatti S. AFM Characterization of Halloysite Clay Nanocomposites' Superficial Properties: Current State-of-the-Art and Perspectives. MATERIALS 2022; 15:ma15103441. [PMID: 35629468 PMCID: PMC9146693 DOI: 10.3390/ma15103441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 05/02/2022] [Accepted: 05/06/2022] [Indexed: 01/24/2023]
Abstract
Natural halloysite clay nanotubes (HNTs) are versatile inorganic reinforcing materials for creating hybrid composites. Upon doping HNTs with polymers, coating, or loading them with bioactive molecules, the production of novel nanocomposites is possible, having specific features for several applications. To investigate HNTs composites nanostructures, AFM is a very powerful tool since it allows for performing nano-topographic and morpho-mechanical measurements in any environment (air or liquid) without treatment of samples, like electron microscopes require. In this review, we aimed to provide an overview of recent AFM investigations of HNTs and HNT nanocomposites for unveiling hidden characteristics inside them envisaging future perspectives for AFM as a smart device in nanomaterials characterization.
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Affiliation(s)
- Mariafrancesca Cascione
- Department of Mathematics & Physics “Ennio De Giorgi”, University of Salento, Via Arnesano, 73100 Lecce, Italy; (V.D.M.); (F.P.)
- Correspondence: (M.C.); (S.L.); Tel.: +39-0832-319829 (S.L.)
| | - Valeria De Matteis
- Department of Mathematics & Physics “Ennio De Giorgi”, University of Salento, Via Arnesano, 73100 Lecce, Italy; (V.D.M.); (F.P.)
| | - Francesca Persano
- Department of Mathematics & Physics “Ennio De Giorgi”, University of Salento, Via Arnesano, 73100 Lecce, Italy; (V.D.M.); (F.P.)
- CNR Nanotec—Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy
| | - Stefano Leporatti
- CNR Nanotec—Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy
- Correspondence: (M.C.); (S.L.); Tel.: +39-0832-319829 (S.L.)
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12
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Cegłowski M, Kurczewska J, Lusina A, Nazim T, Ruszkowski P. EGDMA- and TRIM-Based Microparticles Imprinted with 5-Fluorouracil for Prolonged Drug Delivery. Polymers (Basel) 2022; 14:polym14051027. [PMID: 35267850 PMCID: PMC8914908 DOI: 10.3390/polym14051027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/28/2022] [Accepted: 03/02/2022] [Indexed: 01/04/2023] Open
Abstract
Imprinted materials possess designed cavities capable of forming selective interactions with molecules used in the imprinting process. In this work, we report the synthesis of 5-fluorouracil (5-FU)-imprinted microparticles and their application in prolonged drug delivery. The materials were synthesized using either ethylene glycol dimethacrylate (EGDMA) or trimethylolpropane trimethacrylate (TRIM) cross-linkers. For both types of polymers, methacrylic acid was used as a functional monomer, whereas 2-hydroxyethyl methacrylate was applied to increase the final materials’ hydrophilicity. Adsorption isotherms and adsorption kinetics were investigated to characterize the interactions that occur between the materials and 5-FU. The microparticles synthesized using the TRIM cross-linker showed higher adsorption properties towards 5-FU than those with EGDMA. The release kinetics was highly dependent upon the cross-linker and pH of the release medium. The highest cumulative release was obtained for TRIM-based microparticles at pH 7.4. The IC50 values proved that 5-FU-loaded TRIM-based microparticles possess cytotoxic activity against HeLa cell lines similar to pure 5-FU, whereas their toxicity towards normal HDF cell lines was ca. three times lower than for 5-FU.
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Affiliation(s)
- Michał Cegłowski
- Faculty of Chemistry, Adam Mickiewicz University, 61-614 Poznan, Poland; (J.K.); (A.L.); (T.N.)
- Correspondence: ; Tel.: +48-61-8291-799
| | - Joanna Kurczewska
- Faculty of Chemistry, Adam Mickiewicz University, 61-614 Poznan, Poland; (J.K.); (A.L.); (T.N.)
| | - Aleksandra Lusina
- Faculty of Chemistry, Adam Mickiewicz University, 61-614 Poznan, Poland; (J.K.); (A.L.); (T.N.)
| | - Tomasz Nazim
- Faculty of Chemistry, Adam Mickiewicz University, 61-614 Poznan, Poland; (J.K.); (A.L.); (T.N.)
| | - Piotr Ruszkowski
- Department of Pharmacology, Poznan University of Medical Sciences, 61-614 Poznan, Poland;
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13
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Khodabakhshi MR, Baghersad MH. Enhanced antimicrobial treatment by a clay-based drug nanocarrier conjugated to a guanidine-rich cell penetrating peptide. RSC Adv 2021; 11:38961-38976. [PMID: 35492451 PMCID: PMC9044475 DOI: 10.1039/d1ra07821f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 11/29/2021] [Indexed: 12/23/2022] Open
Abstract
In this study, a novel and efficient drug delivery system is proposed for the enhancement of antimicrobial properties of antibiotic medications such as vancomycin (VCM) and levofloxacin (OFX). The architecture of the designed drug carrier is based on halloysite nanotubes (HNTs) with a rolled-laminate shape, suitable for the encapsulation of drug and further release. In order to make them capable for magnetic direction to the target tissue, the exterior surface of the tubes is composed of iron oxide nanoparticles (Fe3O4 NPs), via an in situ process. The main role in the antimicrobial activity enhancement is played by a cell-penetrating peptide (CPP) sequence synthesized in the solid phase, which contains three arginine–tryptophan blocks plus a cysteine as the terminal amino acid (C(WR)3). The drug content values for the prepared nanocargoes named as VCM@Fe3O4/HNT–C(WR)3 and OFX@Fe3O4/HNT–C(WR)3, have been estimated at ca. 10 wt% and 12 wt%, respectively. Also, the drug release investigations have shown that above 90% of the encapsulated drug is released in acetate buffer (pH = 4.6), during a 90 minutes process. Confocal microscopy has corroborated good adhesion and co-localization of the particles and the stained living cells. Moreover, in vitro antimicrobial assessments (optical density, zone of inhibition, and minimum inhibitory concentration) have revealed that the bacterial cell growth rate is significantly inhibited by suggested nanocargoes, in comparison with the individual drugs in the same dosage. Hence, administration of the presented nanocargoes is recommended for the clinical treatment of the infected target organ. A novel anti-infection therapeutic nano-bioconjugate based on magnetized halloysite nanotubes and a CPP is presented. High levels of bactericidal effects have been obtained with the designed nanocargo in comparison with the individual drugs.![]()
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Affiliation(s)
| | - Mohammad Hadi Baghersad
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences Tehran Iran
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14
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Nalluri LP, Popuri SR, Lee CH, Terbish N. Synthesis of biopolymer coated functionalized superparamagnetic iron oxide nanoparticles for the pH-sensitive delivery of anti-cancer drugs epirubicin and temozolomide. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2020.1785449] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Lakshmi P. Nalluri
- Department of Environmental Engineering, Da-Yeh University, Changhua, R.O.C., Taiwan
| | - Srinivasa R. Popuri
- Department of Biological and Chemical Sciences, The University of the West Indies, Barbados, West Indies
| | - Ching-Hwa Lee
- Department of Environmental Engineering, Da-Yeh University, Changhua, R.O.C., Taiwan
| | - Narangarav Terbish
- Department of Environmental Engineering, Da-Yeh University, Changhua, R.O.C., Taiwan
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15
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Jabbar F, Abbas G, Ameer N, Akhtar MF, Shah S, Hanif M. Preparation and characterization of halloysite nanotubes containing hydrogels for controlled release drug delivery of cetirizine dihydrochloride. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03750-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Tran PHL, Tran TTD. Mucoadhesive Formulation Designs for Oral Controlled Drug Release at the Colon. Curr Pharm Des 2021; 27:540-547. [PMID: 32940169 DOI: 10.2174/1381612826666200917143816] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 07/17/2020] [Indexed: 11/22/2022]
Abstract
Mucoadhesive formulations have been demonstrated to result in efficient drug delivery systems with advantages over existing systems such as increased local retention and sustained drug release via adhesiveness to mucosal tissues. The controlled release of colon-targeted, orally administered drugs has recently attracted a number of studies investigating mucoadhesive systems. Consequently, substantial designs, from mucoadhesive cores to shells of particles, have been studied with promising applications. This review will provide an overview of specific strategies for developing mucoadhesive systems for colon-targeted oral delivery with controlled drug release, including mucoadhesive matrices, cross-linked mucoadhesive microparticles, coatings and mucoadhesive nanoparticles. The understanding of the basic principle of these designs and advanced formulations throughout will lead to the development of products with efficient drug delivery at the colon for therapies for different diseases.
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Affiliation(s)
- Phuong H L Tran
- Deakin University, School of Medicine, IMPACT, Institute for Innovation in Physical and Mental Health and Clinical Translation, Geelong, Australia
| | - Thao T D Tran
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam
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17
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Ke CL, Deng FS, Chuang CY, Lin CH. Antimicrobial Actions and Applications of Chitosan. Polymers (Basel) 2021; 13:904. [PMID: 33804268 PMCID: PMC7998239 DOI: 10.3390/polym13060904] [Citation(s) in RCA: 194] [Impact Index Per Article: 64.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/08/2021] [Accepted: 03/08/2021] [Indexed: 02/08/2023] Open
Abstract
Chitosan is a naturally originating product that can be applied in many areas due to its biocompatibility, biodegradability, and nontoxic properties. The broad-spectrum antimicrobial activity of chitosan offers great commercial potential for this product. Nevertheless, the antimicrobial activity of chitosan varies, because this activity is associated with its physicochemical characteristics and depends on the type of microorganism. In this review article, the fundamental properties, modes of antimicrobial action, and antimicrobial effects-related factors of chitosan are discussed. We further summarize how microorganisms genetically respond to chitosan. Finally, applications of chitosan-based biomaterials, such as nanoparticles and films, in combination with current clinical antibiotics or antifungal drugs, are also addressed.
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Affiliation(s)
| | | | | | - Ching-Hsuan Lin
- Department of Biochemical Science and Technology, College of Life Science, National Taiwan University, Taipei 10617, Taiwan; (C.-L.K.); (F.-S.D.); (C.-Y.C.)
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18
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Jauković V, Krajišnik D, Daković A, Damjanović A, Krstić J, Stojanović J, Čalija B. Influence of selective acid-etching on functionality of halloysite-chitosan nanocontainers for sustained drug release. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 123:112029. [PMID: 33812644 DOI: 10.1016/j.msec.2021.112029] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 02/13/2021] [Accepted: 03/02/2021] [Indexed: 12/11/2022]
Abstract
The functionality of halloysite (Hal) nanotubes as drug carriers can be improved by lumen enlargement and polymer modification. This study investigates the influence of selective acid etching on Hal functionalization with cationic biopolymer chitosan. Hal was subjected to lumen etching under mild conditions, loaded under vacuum with nonsteroidal antiinflammatory drug aceclofenac, and incubated in an acidic solution of chitosan. The functionality of pristine and etched Hal before and upon polymer functionalization was assessed by ζ-potential measurements, structural characterization (FT-IR, DSC and XRPD analysis), cell viability assay, drug loading and drug release studies. Acid etching increased specific surface area, pore volume and pore size of Hal, decreased ζ-potential and facilitated binding of the cationic polymer. XRPD and DSC analysis revealed crystalline structure of etched Hal. Successful chitosan binding and drug entrapment were further confirmed by FT-IR and DSC studies. XRPD showed surface polymer binding. DSC and FT-IR analyses confirmed the presence of the entrapped drug in its crystalline form. Drug loading was increased for ≈81% by selective lumen etching. Slight decrease of drug content occurred during chitosan functionalization due to aceclofenac diffusion in the polymer solution. The drug release was more sustained from etched Hal nanocomposites (up to ≈87% for 12 h) than from pristine Hal (up to ≈97% for 12 h) due to more intensive chitosan binding. High human fibroblast survival rates upon exposure to pristine and etched Hal before and after chitosan functionalization (>90% in the concentration of 1000 μg/mL) confirmed that both lumen etching under mild conditions and polymer functionalization had no significant effect on cytocompatibility. Based on these findings, selective lumen etching in combination with polycation modification appears to be a promising approach for improvement of Hal nanotubes functionality by increasing payload, polymer binding capacity, and sustained release properties with no significant effect on their cytocompatibility.
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Affiliation(s)
- Valentina Jauković
- University of Belgrade, Faculty of Pharmacy, Vojvode Stepe 450, 11 221 Belgrade, Serbia
| | - Danina Krajišnik
- University of Belgrade, Faculty of Pharmacy, Vojvode Stepe 450, 11 221 Belgrade, Serbia.
| | - Aleksandra Daković
- Institute for the Technology of Nuclear and Other Mineral Raw Materials, Franše d'Epere 86, 11000 Belgrade, Serbia
| | - Ana Damjanović
- Institute of Oncology and Radiology of Serbia, Pasterova 14, Belgrade, Serbia
| | - Jugoslav Krstić
- University of Belgrade, Institute of Chemistry, Technology and Metallurgy, Njegoševa 12, 11000 Belgrade, Serbia
| | - Jovica Stojanović
- Institute for the Technology of Nuclear and Other Mineral Raw Materials, Franše d'Epere 86, 11000 Belgrade, Serbia
| | - Bojan Čalija
- University of Belgrade, Faculty of Pharmacy, Vojvode Stepe 450, 11 221 Belgrade, Serbia
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19
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Eudragit S100-coated halloysite nanotube/chitosan microspheres for colon-targeted release of paeoniflorin. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2020.102258] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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20
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Dong J, Cheng Z, Tan S, Zhu Q. Clay nanoparticles as pharmaceutical carriers in drug delivery systems. Expert Opin Drug Deliv 2020; 18:695-714. [PMID: 33301349 DOI: 10.1080/17425247.2021.1862792] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Clay minerals are a class of silicates with chemical inertness, colloid, and thixotropy, which have excellent physicochemical properties, good biocompatibility, low toxicity, and have high application potential in biomedical fields. These inorganic materials have been widely used in pharmaceutical excipients and active substances. In recent years, nanoclay mineral materials have been used as drug vehicles for the delivery of a variety of drugs based on their broad specific surface area, rich porosity, diverse morphology, good adsorption performance, and high ion exchange capacity. AREAS COVERED This review introduces the structures, properties, and applications of various common natural and synthetic nanoclay materials as drug carriers. Natural nanoclays have different morphologies including nanoplates, nanotubes, and nanofibers. Synthetic materials have controllable sizes and flexible structures, where mesoporous silica nanoparticles, laponite, and imogolite are typical ones. These inorganic nanoparticles are often linked to polymers to form multifunctional drug delivery systems for better pharmaceutical performance. EXPERT OPINION The clay nanomaterials have typical properties, including enhanced solubility of insoluble drugs, targeting therapeutic sites, controlled release, and stimulation of responsive drug delivery systems.
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Affiliation(s)
- Jiani Dong
- Department of Pharmacy, Xiangya School of Pharmaceutical Sciences in Central South University, Changsha, Hunan, China
| | - Zeneng Cheng
- Department of Pharmacy, Xiangya School of Pharmaceutical Sciences in Central South University, Changsha, Hunan, China
| | - Songwen Tan
- Department of Pharmacy, Xiangya School of Pharmaceutical Sciences in Central South University, Changsha, Hunan, China
| | - Qubo Zhu
- Department of Pharmacy, Xiangya School of Pharmaceutical Sciences in Central South University, Changsha, Hunan, China
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21
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Wang Y, Li H, Wang L, Han J, Yang Y, Fu T, Qiao H, Wang Z, Li J. Mucoadhesive nanocrystal-in-microspheres with high drug loading capacity for bioavailability enhancement of silybin. Colloids Surf B Biointerfaces 2020; 198:111461. [PMID: 33246779 DOI: 10.1016/j.colsurfb.2020.111461] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 10/28/2020] [Accepted: 11/09/2020] [Indexed: 11/19/2022]
Abstract
Nanocrystals, due to high drug loading efficiency, have drawn large attention as nanotechnology to enhance solubility and bioavailability of poorly soluble drugs. However, most nanocrystals still encountered low oral absorption percentage due to its insufficient retention time in the gastrointestinal tract (GI). In this work, silybin (SB) as model drug was fabricated to nanocrystals, and further loaded into a mucoadhesive microsphere to increase the GI retention. Such mucoadhesive microspheres were prepared with a wet media milling technique followed by coagulation and film coating. Nanocrystals and microspheres were thoroughly characterized by diverse complementary techniques. As results, such delivery system displayed an encapsulation efficiency of approximately 100 % and a drug loading capacity of up to 35.41 ± 0.31 %. In addition, mucoadhesiveness test ex vivo conducted with rat intestine showed that film-coated microspheres were retained for more than 1 h. Benefiting from nanocrystals technology, the drug cumulative release percentage of the microspheres was remarkable improved compared to unprocessed one in vitro. Finally, pharmacokinetics studies in rats showed a significant 3-fold increase of drug oral bioavailability compared to unprocessed SB. The current study demonstrates that the developed delivery vehicle can enhance the bioavailability of SB by increasing its dissolution percentage as well as through extending retention time in the GI tract, and achieve high drug loading capacity.
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Affiliation(s)
- Yutong Wang
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Engineering Research Center for Efficient Delivery System of TCM, Nanjing 210023, China
| | - Huaning Li
- School of Clinical Medicine, Weifang Medical University, Weifang, 261053, China
| | - Lingchong Wang
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Engineering Research Center for Efficient Delivery System of TCM, Nanjing 210023, China
| | - Jiawei Han
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Engineering Research Center for Efficient Delivery System of TCM, Nanjing 210023, China
| | - Yujie Yang
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Engineering Research Center for Efficient Delivery System of TCM, Nanjing 210023, China
| | - Tingming Fu
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Hongzhi Qiao
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Engineering Research Center for Efficient Delivery System of TCM, Nanjing 210023, China
| | - Zengwu Wang
- Department of Neurosurgery, Weifang People's Hospital, Weifang, 261000, China
| | - Junsong Li
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Engineering Research Center for Efficient Delivery System of TCM, Nanjing 210023, China.
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22
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Lin Z, Hu H, Liu B, Chen Y, Tao Y, Zhou X, Li M. Biomaterial-assisted drug delivery for interstitial cystitis/bladder pain syndrome treatment. J Mater Chem B 2020; 9:23-34. [PMID: 33179709 DOI: 10.1039/d0tb02094j] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Interstitial cystitis/bladder pain syndrome (IC/BPS) is a chronic and painful bladder condition afflicting patients with increased urinary urgency and frequency as well as incontinence. Owing to the elusive pathogenesis of IC/BPS, obtaining effective therapeutic outcomes remains challenging. Current administrational routes such as intravesical-bladder injection improve the treatment efficacy and reduce systemic side effects. However, the bladder permeability barrier hinders drug penetration into the bladder wall to meet the desired therapeutic expectation. These issues can be addressed by encapsulating drugs into biomaterials. When appropriately exploited, they would increase the drug dwelling time in the bladder, enhance the penetration of mucosa and improve the therapeutic response of IC/BPS. In this review, we first elucidate the pathogenesis and animal models of IC/BPS. Then, we highlight recent representative biomaterial-assisted drug delivery systems for IC/BPS treatment. Finally, we discuss the challenges and outlook for further developing biomaterial-based delivery systems for IC/BPS management.
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Affiliation(s)
- Zhijun Lin
- Laboratory of Biomaterials and Translational Medicine, Department of Urology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510630, China.
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23
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Jain SK, Dutta A, Kumar J, Shakil NA. Preparation and characterization of dicarboxylic acid modified starch-clay composites as carriers for pesticide delivery. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.09.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Danyliuk N, Tomaszewska J, Tatarchuk T. Halloysite nanotubes and halloysite-based composites for environmental and biomedical applications. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113077] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Silva MCC, Santos MSF, Bezerra RDS, Araújo-Júnior EA, Osajima JA, Santos MRMC, Fonseca MG, Silva-Filho EC. Kaolinite/cashew gum bionanocomposite for doxazosin incorporation and its release. Int J Biol Macromol 2020; 161:927-935. [PMID: 32531359 DOI: 10.1016/j.ijbiomac.2020.06.062] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/20/2020] [Accepted: 06/08/2020] [Indexed: 12/24/2022]
Abstract
Incorporation of drugs in clay minerals has been widely proposed for the controlled-release or increased solubility of drugs. In this context, a bionanocomposite based on kaolinite and cashew gum (Kln/Gum) was synthesized and characterized by X-ray diffraction (XRD), thermal analysis (TG/DTA), and Fourier transform infrared spectroscopy (FTIR). The bionanocomposite was applied to the incorporation and further release of doxazosin mesylate (DB). The influence of solution pH (1-3), adsorbent dose (20-50 mg), initial drug concentration (20.0-70.0 mg L-1), contact time (15-300 min), and temperature (25, 35, and 45 °C) were systematically evaluated. Equilibrium was reached around 60 min, with a maximum adsorption capacity of 31.5 ± 2.0 mg g-1 at a pH of 3.0 and 25 °C. Hydrogen bonding contributed to DB incorporation on the Kln/Gum. In addition, DB maximum amounts of 16.80 ± 0.58 and 77.00 ± 2.46% were released at pH values of 1.2 and 7.4, respectively. These results indicated that the Kln/Gum bionanocomposite is an effective and promising material for the incorporation/release of drugs with similar structures to DB.
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Affiliation(s)
- Maura C C Silva
- Caxias Higher Studies Center - CESC, UEMA, Caxias, 65600-000, MA, Brazil
| | | | - Roosevelt D S Bezerra
- Federal Institute of Education, Science and Technology of Piauí, Teresina-Central Campus, IFPI, Teresina 64000-040, PI, Brazil
| | - Edgar A Araújo-Júnior
- Interdisciplinary Laboratory for Advanced Materials-LIMAV, UFPI, Teresina, 64049-550, PI, Brazil
| | - Josy A Osajima
- Interdisciplinary Laboratory for Advanced Materials-LIMAV, UFPI, Teresina, 64049-550, PI, Brazil
| | - Maria R M C Santos
- Interdisciplinary Laboratory for Advanced Materials-LIMAV, UFPI, Teresina, 64049-550, PI, Brazil
| | - Maria G Fonseca
- Federal University of Paraiba, Research and Extension Center - Fuel and Materials Laboratory (NPE -LACOM), UFPB, João Pessoa, 58051-085, PB, Brazil
| | - Edson C Silva-Filho
- Interdisciplinary Laboratory for Advanced Materials-LIMAV, UFPI, Teresina, 64049-550, PI, Brazil.
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