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Malik MK, Kumar V, Kumarasamy V, Singh OP, Kumar M, Dixit R, Subramaniyan V, Singh J. Film Coating of Phosphorylated Mandua Starch on Matrix Tablets for pH-Sensitive Release of Mesalamine. Molecules 2024; 29:3208. [PMID: 38999160 PMCID: PMC11243319 DOI: 10.3390/molecules29133208] [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: 10/28/2023] [Revised: 12/04/2023] [Accepted: 12/12/2023] [Indexed: 07/14/2024] Open
Abstract
Chemically modified mandua starch was successfully synthesized and applied to coat mesalamine-loaded matrix tablets. The coating material was an aqueous dispersion of mandua starch modified by sodium trimetaphosphate and sodium tripolyphosphate. To investigate the colon-targeting release competence, chemically modified mandua starch film-coated mesalamine tablets were produced using the wet granulation method followed by dip coating. The effect of the coating on the colon-targeted release of the resultant delivery system was inspected in healthy human volunteers and rabbits using roentgenography. The results show that drug release was controlled when the coating level was 10% w/w. The release percentage in the upper gastric phase (pH 1.2, simulated gastric fluid) was less than 6% and reached up to 59.51% w/w after 14 h in simulated colonic fluid. In addition to in vivo roentgenographic studies in healthy rabbits, human volunteer studies proved the colon targeting efficiency of the formulation. These results clearly demonstrated that chemically modified mandua starch has high effectiveness as a novel aqueous coating material for controlled release or colon targeting.
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Affiliation(s)
- Mayank Kumar Malik
- Department of Chemistry, Gurukula Kangri (Deemed to be University), Haridwar 249407, India; (M.K.M.); (J.S.)
| | - Vipin Kumar
- Department of Pharmaceutical Sciences, Gurukula Kangri (Deemed to be University), Haridwar 249407, India;
| | - Vinoth Kumarasamy
- Department of Parasitology and Medical Entomology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras, Kuala Lumpur 56000, Malaysia
| | - Om Prakash Singh
- Department of Kaya Chikitsa, Rishikul Campus, Haridwar, Uttarakhand Ayurved University, Dehradun 248001, India;
| | - Mukesh Kumar
- Department of Botany and Microbiology, Gurukula Kangri (Deemed to be University), Haridwar 249407, India;
| | - Raghav Dixit
- Department of Pharmaceutical Sciences, Gurukula Kangri (Deemed to be University), Haridwar 249407, India;
| | - Vetriselvan Subramaniyan
- Pharmacology Unit, Jeffrey Cheah School of Medicine and Health Sciences, Monash University, Jalan Lagoon Selatan, Bandar Sunway, Selangor Darul Ehsan 47500, Malaysia
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144001, India
| | - Jaspal Singh
- Department of Chemistry, Gurukula Kangri (Deemed to be University), Haridwar 249407, India; (M.K.M.); (J.S.)
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Appraisal of Surelease Clear E-7–19040, an Ethylcellulose Aqueous Dispersion, as a Release Modifier for the Hydrophilic Core. J Pharm Innov 2022. [DOI: 10.1007/s12247-022-09693-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Design of Experiments as a Tool to Optimize the Process of Coating Minitablets with Commercial Gastro-Resistant Coating Mixtures. Pharmaceutics 2022; 14:pharmaceutics14091816. [PMID: 36145563 PMCID: PMC9505921 DOI: 10.3390/pharmaceutics14091816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/21/2022] [Accepted: 08/26/2022] [Indexed: 11/29/2022] Open
Abstract
According to the Quality by Design (QbD) concept, Design of Experiment (DoE) was used to indicate critical process parameters and optimize the fluid bed coating of minitablets in a laboratory size batch. Full factorial design was employed to increase knowledge of the process for three kinds of minitablet (MT) cores using two commercial gastro-resistant coating mixtures. The statistical analysis showed that different critical process parameters were indicated for the tested minitablets: X3: the coating mixture flow rate for MTs with pantoprazole sodium and Eudragit L; X2: the product temperature; X3 and X4: the spraying pressure for MTs with pantoprazole sodium and Acryl Eze II; and X1 and X2: MTs with diclofenac sodium. Such differences were the result of features, such as the sub-coat, size, and mass of the cores and the core and coating mixture composition. No optimal parameters were found for any of the tested MT types. Therefore, DoE should be considered as a statistical tool to individually optimize the process for the product, equipment, and tested parameters. However, optimization of the fluid bed coating allowed us to predict the values of the process parameters necessary to obtain good-quality products. Therefore, fluid bed coating may be successfully used to obtain modified-release MTs of high quality after applying the statistical tool DoE.
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Han Won D, Park H, Seo JW, Woo Jang S, Ha ES, Kim MS. Active coating of immediate-release evogliptin tartrate to prepare fixed dose combination tablet with sustained-release metformin HCl. Int J Pharm 2022; 623:121927. [PMID: 35716979 DOI: 10.1016/j.ijpharm.2022.121927] [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: 03/07/2022] [Revised: 05/19/2022] [Accepted: 06/13/2022] [Indexed: 10/18/2022]
Abstract
This study was aimed to develop a fixed dose combination (FDC) tablet containing a low dose of evogliptin tartrate (6.87 mg) for immediate release combined with a high dose (1000 mg) of sustained-release (SR) metformin HCl appropriate for once daily dosing the treatment of type 2 diabetes. To prepare the FDC tablets, an active coating was used in this study, whereby evogliptin tartrate film was layered on a matrix core tablet containing metformin HCl. To overcome the problem caused by a low-dose drug in combination with a relatively large matrix tablet containing high-dose drug, it was also aimed to confirm the formulation and coating operation for satisfactory content uniformity, and to describe the chemical stability during storage of the amorphous active coating layer formulation in relation to molecular mobility. Furthermore, the in vitro release and in vivo pharmacokinetic profiles of metformin HCl and evogliptin tartrate in the FDC active coating tablet were compared to those of the commercially marketed reference drugs, Diabex XR® (Daewoong, Seoul, Korea) containing metformin HCl and Suganon® (Donga ST, Seoul, Korea) containing evogliptin tartrate. In conclusion, the newly developed FDC active coating tablet in this study was confirmed to be bioequivalent to the reference marketed products in beagle dogs, with satisfactory content uniformity and stability.
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Affiliation(s)
- Dong Han Won
- College of Pharmacy, Pusan National University, 63 Busandaehak-ro, Geumjeong-gu, Busan 46241, Republic of Korea; Dong-A ST Co. Ltd., Giheung-gu, Yongin, Gyeonggi 446-905, Republic of Korea
| | - Heejun Park
- College of Pharmacy, Duksung Women's University, 33, Samyangro 144-gil, Dobong-gu, Seoul 01369, Republic of Korea
| | - Jeong-Woong Seo
- Dong-A ST Co. Ltd., Giheung-gu, Yongin, Gyeonggi 446-905, Republic of Korea
| | - Sun Woo Jang
- Dong-A ST Co. Ltd., Giheung-gu, Yongin, Gyeonggi 446-905, Republic of Korea
| | - Eun-Sol Ha
- College of Pharmacy, Pusan National University, 63 Busandaehak-ro, Geumjeong-gu, Busan 46241, Republic of Korea
| | - Min-Soo Kim
- College of Pharmacy, Pusan National University, 63 Busandaehak-ro, Geumjeong-gu, Busan 46241, Republic of Korea.
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Development of Extended-Release Mini-Tablets Containing Metoprolol Supported by Design of Experiments and Physiologically Based Biopharmaceutics Modeling. Pharmaceutics 2022; 14:pharmaceutics14050892. [PMID: 35631478 PMCID: PMC9146084 DOI: 10.3390/pharmaceutics14050892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/09/2022] [Accepted: 04/12/2022] [Indexed: 11/17/2022] Open
Abstract
The development of extended-release dosage forms with adequate drug release is a challenge for pharmaceutical companies, mainly when the drug presents high solubility, as in Biopharmaceutics Classification System (BCS) class I. This study aimed to develop extended-release mini-tablets containing metoprolol succinate (MS), while integrating design of experiments (DOE) and physiologically based biopharmaceutics modeling (PBBM), to predict its absorption and to run virtual bioequivalence (VBE) studies in both fasted and fed states. Core mini-tablet formulations (F1, F2, and F3) were prepared by direct compression and coated using nine coating formulations planned using DOE, while varying the percentages of the controlled-release and the pore-forming polymers. The coated mini-tablets were submitted to a dissolution test; additional formulations were prepared that were optimized by simulating the dissolution profiles, and the best one was submitted to VBE studies using GastroPlus® software. An optimized formulation (FO) containing a mixture of immediate and extended-release mini-tablets showed to be bioequivalent to the reference drug product containing MS when running VBE studies in both fasted and fed states. The integration of DOE and PBBM showed to be an interesting approach in the development of extended-release mini-tablet formulation containing MS, and can be used to rationalize the development of dosage forms.
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Seo KS, Bajracharya R, Lee SH, Han HK. Pharmaceutical Application of Tablet Film Coating. Pharmaceutics 2020; 12:pharmaceutics12090853. [PMID: 32911720 PMCID: PMC7558083 DOI: 10.3390/pharmaceutics12090853] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 08/27/2020] [Accepted: 09/03/2020] [Indexed: 12/27/2022] Open
Abstract
Tablet film coating is a common but critical process providing various functionalities to tablets, thereby meeting diverse clinical needs and increasing the value of oral solid dosage forms. Tablet film coating is a technology-driven process and the evolution of coated dosage forms relies on advancements in coating technology, equipment, analytical techniques, and coating materials. Although multiple coating techniques are developed for solvent-based or solvent-free coating processes, each method has advantages and disadvantages that may require continuous technical refinement. In the film coating process, intra- and inter-batch coating uniformity of tablets is critical to ensure the quality of the final product, especially for active film coating containing active pharmaceutical ingredients in the coating layer. In addition to experimental evaluation, computational modeling is also actively pursued to predict the influence of operation parameters on the quality of the final product and optimize process variables of tablet film coating. The concerted efforts of experiments and computational modeling can save time and cost in optimizing the tablet coating process. This review provides a brief overview of tablet film coating technology and modeling approaches with a focus on recent advancements in pharmaceutical applications.
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Affiliation(s)
- Ki-Soo Seo
- College of Pharmacy, Dongguk University-Seoul, Dongguk-ro-32, Ilsan-Donggu, Goyang 10326, Korea; (K.-S.S.); (R.B.); (S.H.L.)
- Research Institute, Dong Wha Pharm., Tapsil-ro-35, Giheung-gu, Yongin 17084, Korea
| | - Rajiv Bajracharya
- College of Pharmacy, Dongguk University-Seoul, Dongguk-ro-32, Ilsan-Donggu, Goyang 10326, Korea; (K.-S.S.); (R.B.); (S.H.L.)
| | - Sang Hoon Lee
- College of Pharmacy, Dongguk University-Seoul, Dongguk-ro-32, Ilsan-Donggu, Goyang 10326, Korea; (K.-S.S.); (R.B.); (S.H.L.)
| | - Hyo-Kyung Han
- College of Pharmacy, Dongguk University-Seoul, Dongguk-ro-32, Ilsan-Donggu, Goyang 10326, Korea; (K.-S.S.); (R.B.); (S.H.L.)
- Correspondence: ; Tel.: +82-31-961-5217; Fax: +82-31-961-5206
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Hu M, Zhu Z, Wu Y, Meng Q, Luo J, Wang H. Exploring the Potential of Hydrophilic Matrix Combined with Insoluble Film Coating: Preparation and Evaluation of Ambroxol Hydrochloride Extended Release Tablets. AAPS PharmSciTech 2020; 21:93. [PMID: 32076885 DOI: 10.1208/s12249-020-1628-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 01/22/2020] [Indexed: 11/30/2022] Open
Abstract
To explore the potential utility of combination of hydrophilic matrix with membrane-controlled technology, the present study prepared tablets of a water-soluble model drug (ambroxol hydrochloride), through process of direct compression and spray coating. Single-factor experiments were accomplished to optimize the formulation. In vivo pharmacokinetics was then performed to evaluate the necessity and feasibility of further development of this simple process and low-cost approach. Various release rates could be easily obtained by adjusting the viscosity and amount of hypromellose, pore-former ratios in coating dispersions and coating weight gains. Dissolution profiles of coated tablets displayed initial delay, followed by near zero-order kinetics. The pharmacokinetic study of different formulations showed that lag time became longer as the permeability of coating membrane decreased, which was consistent with the in vitro drug release trend. Besides, in vitro/in vivo correlation study indicated that coated tablets exhibited a good correlation between in vitro release and in vivo absorption. The results, therefore, demonstrated that barrier-membrane-coated matrix formulations were extremely promising for further application in industrialization and commercialization.
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Barros PD, Dias IFT, Zanin GD, Bunhak ÉJ. Development and evaluation of dapsone tablets coated for specific colon release. Drug Dev Ind Pharm 2020; 46:246-252. [PMID: 31951762 DOI: 10.1080/03639045.2020.1716375] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Objective: Drug release systems based on colonic microbiota have been explored with the use of polysaccharides, which are biodegradable. In order to modulate the release into the colon, dapsone tablets were developed, coated with Surelease® and chondroitin sulfate (SC).Methods: The formulation was developed using the wet granulation method, in the form of 9-millimetre circular tablets. The coating was applied in a perforated basin-type coating using different proportions of Surelease® and chondroitin sulfate. The tablets were assessed according to the criteria of mean weight, hardness, and friability. The dissolution test was performed in the dissolver IV apparatus, in media simulating the gastrointestinal system environments (pH 1.2-pH 6.0 and pH 7.2) for 420 min. The results were analyzed by statistical analysis and factorial design.Results: The results of mean weight, hardness, and friability met the pharmacopeial specifications. In the dissolution test, the results obtained demonstrated that Surelease® is able to offer effective protection to the drug, releasing minimum rates when used at 6% or 10% of the tablet's weight gain. The experiments showed that the drug was not able to spread through the coatings manufactured exclusively with Surelease® or even when SC was incorporated in different proportions. Only in the formulation where SC was included in the highest proportion (10%), and the weight gain of the tablet was lower (6%), the release of dapsone increased, reaching 9.5% of drug released. Through factorial planning, it was observed that the drug release rate increases when the weight gain of the tablet remains at the lower level (6%), while the amount of polysaccharide is increased (90:10).Conclusions: The data indicate that the proportion of polysaccharide for ethyl cellulose in the film and the thickness of the coating are the key parameters in controlling the release of the drug from the system.
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Adeleke OA. Premium ethylcellulose polymer based architectures at work in drug delivery. Int J Pharm X 2019; 1:100023. [PMID: 31517288 PMCID: PMC6733301 DOI: 10.1016/j.ijpx.2019.100023] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 07/02/2019] [Accepted: 07/03/2019] [Indexed: 12/14/2022] Open
Abstract
Premium ethylcellulose polymers are hydrophobic cellulose ether based biomaterials widely employed as biocompatible templates for the design of novel drug delivery systems. They are classified as United States Food and Drug Administration Generally-Recognized-As-Safe chemical substances and have been extensively utilized within the biomedical and pharmaceutical industries for over half a century. They have so far demonstrated the potential to modulate and improve the physiological performance of bioactives leading to the desired enhanced prophylactic and therapeutic outcomes. This review therefore presents a scholarly survey of inter-disciplinary developments focused on the functionalities of ethylcellulose polymers as biomaterials useful for the design of smart delivery architectures for relevant pharmacotherapeutic biomedical applications. Emphasis was placed on evaluating scientific resources related to recent advancements and future directions associated with its applications as delivery systems for drugs and biologics within the past decade thus complementing other specialized reviews showcasing the theme.
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Affiliation(s)
- Oluwatoyin A. Adeleke
- Address: Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institute of Health, US Department of Health and Human Services, Bethesda, MD 20892, USA.
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Wasilewska K, Winnicka K. Ethylcellulose-A Pharmaceutical Excipient with Multidirectional Application in Drug Dosage Forms Development. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E3386. [PMID: 31627271 PMCID: PMC6829386 DOI: 10.3390/ma12203386] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/14/2019] [Accepted: 10/15/2019] [Indexed: 02/06/2023]
Abstract
Polymers constitute the most important group of excipients utilized in modern pharmaceutical technology, playing an essential role in the development of drug dosage forms. Synthetic, semisynthetic, and natural polymeric materials offer opportunities to overcome different formulative challenges and to design novel dosage forms for controlled release or for site-specific drug delivery. They are extensively used to design therapeutic systems, modify drug release, or mask unpleasant drug taste. Cellulose derivatives are characterized by different physicochemical properties, such as swellability, viscosity, biodegradability, pH dependency, or mucoadhesion, which determine their use in industry. One cellulose derivative with widespread application is ethylcellulose. Ethylcellulose is used in pharmaceutical technology as a coating agent, flavoring fixative, binder, filler, film-former, drug carrier, or stabilizer. The aim of this article is to provide a broad overview of ethylcellulose utilization for pharmaceutical purposes, with particular emphasis on its multidirectional role in the development of oral and topical drug dosage forms.
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Affiliation(s)
- Katarzyna Wasilewska
- Department of Pharmaceutical Technology, Medical University of Bialystok, Mickiewicza 2c, 15-222 Bialystok, Poland.
| | - Katarzyna Winnicka
- Department of Pharmaceutical Technology, Medical University of Bialystok, Mickiewicza 2c, 15-222 Bialystok, Poland.
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A novel bitter masking approach: Powder coating technology-take Sanhuang tablets as an example. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.04.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Jiang H, Fu J, Li M, Wang S, Zhuang B, Sun H, Ge C, Feng B, Jin Y. 3D-Printed Wearable Personalized Orthodontic Retainers for Sustained Release of Clonidine Hydrochloride. AAPS PharmSciTech 2019; 20:260. [PMID: 31332579 DOI: 10.1208/s12249-019-1460-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 06/18/2019] [Indexed: 12/30/2022] Open
Abstract
Orthodontic retainers are wearable customizable medical devices for dental protection or alignment. Here, clonidine hydrochloride (CH)-loaded wearable personalized 3D printed orthodontic retainers were studied for local sustained-release of drugs. CH powders were mixed with PEG 4000, Tween 80, poly(lactic acid), and polycaprolactone. The mixture was hot-melt extruded to form a filament that was 3D printed to a customizable original orthodontic retainer with the fused deposition modeling (FDM) method. The original retainer showed a burst release of CH in the early stage of the dissolution process though a sustained release appeared in the late stage. The in vivo burst release of CH would lead to unexpected side effect. The original retainer was modified by coating with hydrophilic polymers or washing with buffered solutions to obtain the coated or washed retainer. The coated retainer still showed a burst release while the washed retainer showed an optimal sustained release. Many CH microparticles existed on the surface of original retainers according to the scanning electron microscopic image so that the burst release was unavoidable. The hydrophilic polymer coating method did not change the release profile because the polymer was also rapidly dissolved. However, most of the surface CH can be eliminated by washing so that the burst release dissappeared in the washed retainer. Furthermore, the simulated CH concentration-time profiles in the circulation of humans of the washed retainer showed the stable and appropriate drug levels for more than 3 days. Wearable personalized 3D printed drug-loaded orthodontic retainers are a promising drug-device for sustained release of drugs.
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Podrekar G, Kitak D, Mehle A, Lavrič Z, Likar B, Tomaževič D, Dreu R. In-Line Film Coating Thickness Estimation of Minitablets in a Fluid-Bed Coating Equipment. AAPS PharmSciTech 2018; 19:3440-3453. [PMID: 30280359 DOI: 10.1208/s12249-018-1186-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 09/13/2018] [Indexed: 11/30/2022] Open
Abstract
Film coating thickness of minitablets was estimated in-line during coating in a fluid-bed equipment by means of visual imaging. An existing, commercially available image acquisition system was used for image acquisition, while dedicated image analysis and data analysis methods were developed for this purpose. The methods were first tested against simulated minitablet's images and after that examined on a laboratory-scale fluid-bed Wurster coating process. An observation window cleaning mechanism was developed for this purpose. Six batches of minitablets were coated in total, using two different dispersions, where for the second dispersion coating endpoint was determined based on the in-line measurement. Coating thickness estimates were calculated from the increasing size distributions of the minitablet's major and minor lengths, assessed from the acquired images. Information on both the minitablet's average band and average cap coating thicknesses was obtained. The in-line coating thickness estimates were compared to the coating thickness weight gain calculations and the optical microscope measurements as a reference method. Average band coating thickness estimate was found the most accurate in comparison to microscope measurements, with root mean square error of 1.30 μm. The window cleaning mechanism was crucial for the accuracy of the in-line measurements as was evident from the corresponding decrease of the root mean square error (9.52 μm, band coating thickness). The presented visual imaging approach exhibits accuracy of at least 2 μm and is not susceptible to coating formulation or color variations. It presents a promising alternative to other existing techniques for the in-line coating thickness estimation.
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Neuro-fuzzy modeling of ibuprofen-sustained release from tablets based on different cellulose derivatives. Drug Deliv Transl Res 2018; 9:162-177. [DOI: 10.1007/s13346-018-00592-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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15
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Ganguly S, Maity PP, Mondal S, Das P, Bhawal P, Dhara S, Das NC. Polysaccharide and poly(methacrylic acid) based biodegradable elastomeric biocompatible semi-IPN hydrogel for controlled drug delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 92:34-51. [PMID: 30184759 DOI: 10.1016/j.msec.2018.06.034] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 05/21/2018] [Accepted: 06/14/2018] [Indexed: 01/10/2023]
Abstract
Nanoparticles embedded semi-interpenetrating (semi-IPNs) polymeric hydrogels with enhanced mechanical toughness and biocompatibility could have splendid biomedical acceptance. Here we propose poly(methacrylic acid) grafted polysaccharide based semi-IPNs filled with nanoclay via in situ Michael type reaction associated with covalent crosslinking with N,N-methylenebisacrylamide (MBA). The effect of nanoclay in the semi-IPN hydrogel has been investigated which showed significant improvement of mechanical robustness. Meanwhile, the hydrogels showed reversible ductility up to 70% in response to cyclic loading-unloading cycle which is an obvious phenomenon of rubber-like elasticity. The synthesized semi-IPN hydrogel show biodegradability and non-cytotoxic nature against human cells. The live-dead assay showed that the prepared hydrogel is a viable platform for cell growth without causing severe cell death. The in vitro drug release study in psychological pH (pH = 7.4) reveals that the controlled drug release phenomena can be tuned by simulating the environment pH. Such features in a single hydrogel assembly can propose this as high performance; biodegradable and non-cytotoxic 3D scaffold based promising biomaterial for tissue engineering.
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Affiliation(s)
- Sayan Ganguly
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721301, India
| | - Priti Prasanna Maity
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur 721301, India
| | - Subhadip Mondal
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721301, India
| | - Poushali Das
- School of Nanoscience and Technology, Indian Institute of Technology, Kharagpur 721301, India
| | - Poushali Bhawal
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721301, India
| | - Santanu Dhara
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur 721301, India
| | - Narayan Ch Das
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721301, India.
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Bile J, Bolzinger MA, Valour JP, Fessi H, Chevalier Y. Antimicrobial films containing microparticles for the enhancement of long-term sustained release. Drug Dev Ind Pharm 2015; 42:818-24. [PMID: 26355722 DOI: 10.3109/03639045.2015.1081237] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Coated packagings with thin films containing antimicrobial agents are an alternative technology to ensure the protection of products against microbial contaminations. Indeed, they allow lowering the antimicrobial concentration in the bulk of the product while meeting the safety requirements and the growing consumer demand for low preservative concentrations. Microencapsulation is a suitable way for controlling active agent release and providing a long-term activity. This work aims at combining both technical solutions with coatings containing antimicrobial microparticles for the achievement of long-term sustained release. Polyethylene surfaces were functionalized with microparticles of poly(methyl methacrylate) (PMMA) loaded with phenylethyl alcohol (PEA) as antimicrobial agent by the dip coating process using a polyurethane binder. The release of PEA into water from coated polyethylene surfaces and from PMMA microparticles was investigated to assess the sustained release and its mechanisms. Films with various thicknesses of 400-1000 µm containing antimicrobial microparticles demonstrated unusual long-term release longer than 3 months. The diffusion of the antimicrobial agent through PMMA was the rate limiting step of the sustained release. PEA release increased as the contact area of the protruding microparticles with the external medium increased and the thickness of the film decreased. Such antimicrobial agents encapsulated inside thin coatings are promising with regards to antimicrobial preservation of products along their full shelf-life.
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Affiliation(s)
- Jessica Bile
- a Université de Lyon, Lyon, France and Université Lyon 1, Laboratoire d'Automatique et de Génie des Procédés (LAGEP) , UMR CNRS 5007 , 69622 Villeurbanne , France
| | - Marie-Alexandrine Bolzinger
- a Université de Lyon, Lyon, France and Université Lyon 1, Laboratoire d'Automatique et de Génie des Procédés (LAGEP) , UMR CNRS 5007 , 69622 Villeurbanne , France
| | - Jean-Pierre Valour
- a Université de Lyon, Lyon, France and Université Lyon 1, Laboratoire d'Automatique et de Génie des Procédés (LAGEP) , UMR CNRS 5007 , 69622 Villeurbanne , France
| | - Hatem Fessi
- a Université de Lyon, Lyon, France and Université Lyon 1, Laboratoire d'Automatique et de Génie des Procédés (LAGEP) , UMR CNRS 5007 , 69622 Villeurbanne , France
| | - Yves Chevalier
- a Université de Lyon, Lyon, France and Université Lyon 1, Laboratoire d'Automatique et de Génie des Procédés (LAGEP) , UMR CNRS 5007 , 69622 Villeurbanne , France
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