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Polyacrylamide/poly(2-(dimethylamino) Ethyl Methacrylate) Interpenetrating Polymer Networks as Drug Delivery Systems for Diclofenac Sodium. Gels 2022; 8:gels8120780. [PMID: 36547305 PMCID: PMC9778211 DOI: 10.3390/gels8120780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 12/02/2022] Open
Abstract
Nowadays, modern pharmaceutical investigations are directed toward the design and production of drug delivery systems for achieving prolonged and controlled drug delivery. In this respect, the use of interpenetrating polymer networks (IPNs) is an opportunity in the preparation of polymer drug delivery systems with desired characteristics. This paper describes the synthesis and characterization of novel poly(2-(dimethylamino) ethyl methacrylate) (PDMAEMA) and polyacrylamide (PAAm)-based IPNs with different compositions and their application as diclofenac sodium delivery systems. The prepared IPNs were shown to possess phase-separated structures at the nano level, as revealed by SEM and TM-DSC. The IPNs' composition was shown to determine the swelling behavior of these novel materials, and the inclusion of the charged IPN component (PDMAEMA) has changed the water molecules type diffusion from Fickian to non-Fickian, as revealed by the swelling kinetics study. Loading efficiency of diclofenac sodium and diclofenac sodium content in the polymer network was evaluated, and in vitro drug release experiments were carried out in order to estimate the ability of the obtained IPNs to control the release of the water-soluble drug.
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Huang D, Sun M, Bu Y, Luo F, Lin C, Lin Z, Weng Z, Yang F, Wu D. Microcapsule-embedded hydrogel patches for ultrasound responsive and enhanced transdermal delivery of diclofenac sodium. J Mater Chem B 2019; 7:2330-2337. [PMID: 32254681 DOI: 10.1039/c8tb02928h] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Transdermal delivery of diclofenac sodium (DS) has drawn much attention for the advantages of avoiding first-pass metabolism, reduced systemic toxicity and better patient compliance, but the successful translation of reported transdermal drug delivery systems (TDDSs) is still limited by poor skin permeability and uncontrollable drug release. Herein, we designed and fabricated a novel ultrasound responsive TDDS by embedding DS-loaded polyester microcapsules into a hydrogel patch based on four-armed poly(ethylene glycol). The rational design endows the microcapsule-embedded hydrogel patch with good biocompatibility, excellent skin-adhesion properties and well-controlled ultrasound responsive release behavior. More importantly, by employing ultrasound as a simultaneous trigger of drug release and efficient penetration enhancer, the encapsulated drug could be released and pass through the skin barrier rapidly under ultrasound, while without the action of ultrasound, a negligible amount of drug was released and penetrated into the subcutaneous tissues in ex vivo and in vivo transdermal drug release experiments, indicating that improved and controllable transdermal delivery of DS was achieved. Our work demonstrated that the microcapsule-embedded hydrogel patch may be a promising candidate as an ultrasound responsive and enhanced TDDS of DS for treating diseases such as arthritis and topical soft tissue injuries.
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Affiliation(s)
- Da Huang
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China.
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Omar SM, Nasr M, Rafla DA. Transdermal patches loaded with L-cysteine HCL as a strategy for protection from mobile phone emitting electromagnetic radiation hazards. Saudi Pharm J 2019; 27:112-125. [PMID: 30662314 PMCID: PMC6323147 DOI: 10.1016/j.jsps.2018.09.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Accepted: 09/01/2018] [Indexed: 02/04/2023] Open
Abstract
Mobile phone usage has been increased in the last few years emitting electromagnetic radiation (EMR), which disturbs normal cellular processes via oxidative stress. L-cysteine, a glutathione precursor, prevents oxidative damage. Transdermal patches (TDPs) loaded with L-cysteine hydrochloride (L-CyS-HCL) were fabricated by dispersion of L-CyS-HCL 5% w/w and different concentrations of sorbitol as a plasticizer in room-temperature vulcanizable synthetic silicone matrices (RTV-Si). The effect of sorbitol on patch physicochemical parameters was assessed; in-vitro L-CyS-HCL release profiles and ex-vivo permeation were studied. Pharmacokinetic parameters of endogenous synthetized in-vivo glutathione, after receiving IV bolus dose of L-CyS-HCl and L-CyS-HCl-RTV-Si-TDPs were studied in rat model. The influence of L-CyS-HCL-RTV-Si-TDPs against damaging effects of mobile phone EMR on rats' blood and brain tissues was studied. The results revealed that patch plasticity, intensity reflections, surface porosity, L-CyS-HCL release rate and skin permeation increased with increasing sorbitol concentration. Pharmacokinetic profile for IV dose and L-CyS-HCl-RTV-Si-TDPs revealed that the L-CyS-HCl-RTV-Si-TDPs provided a sustained glutathione plasma concentration-time profile over entire patch application. High significant differences in biological parameters (blood and brain samples) were observed for radiated rats using the patch in study compared with positive control rats. Promising long-term strategy for protection against mobile phone hazards was obtained.
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Affiliation(s)
- Samia M. Omar
- Department of Pharmaceutics, Faculty of Pharmacy, Helwan University, Cairo, Egypt
- Department of Pharmaceutics, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt
| | - Mohamed Nasr
- Department of Pharmaceutics, Faculty of Pharmacy, Helwan University, Cairo, Egypt
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Hwang I, Kim HN, Seong M, Lee SH, Kang M, Yi H, Bae WG, Kwak MK, Jeong HE. Multifunctional Smart Skin Adhesive Patches for Advanced Health Care. Adv Healthc Mater 2018; 7:e1800275. [PMID: 29757494 DOI: 10.1002/adhm.201800275] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 04/12/2018] [Indexed: 12/21/2022]
Abstract
A skin adhesive patch is the most fundamental and widely used medical device for diverse health-care purposes. Conventional skin adhesive patches have been mainly utilized for routine medical purposes such as wound management, fixation of medical devices, and simple drug release. In contrast to traditional skin adhesive patches, recently developed patches incorporate multiple key functions of bulky medical devices into a thin, flexible patch based on emerging nanomaterials and flexible electronic technologies. Consequently, the meaning of the term "skin adhesive patch" becomes broader and smarter compared to the traditional term. This review summarizes recent efforts undertaken in the development of multifunctional advanced skin adhesive patches, and briefly describes future directions and challenges toward the next generation of smart skin adhesive patches for ubiquitous personalized health care.
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Affiliation(s)
- Insol Hwang
- Department of Mechanical Engineering; Ulsan National Institute of Science and Technology (UNIST); Ulsan 44919 Republic of Korea
| | - Hong Nam Kim
- Center for BioMicrosystems; Brain Science Institute; Korea Institute of Science and Technology (KIST); Seoul 136-791 Republic of Korea
| | - Minho Seong
- Department of Mechanical Engineering; Ulsan National Institute of Science and Technology (UNIST); Ulsan 44919 Republic of Korea
| | - Sang-Hyeon Lee
- Department of Mechanical Engineering; Ulsan National Institute of Science and Technology (UNIST); Ulsan 44919 Republic of Korea
| | - Minsu Kang
- Department of Mechanical Engineering; Ulsan National Institute of Science and Technology (UNIST); Ulsan 44919 Republic of Korea
| | - Hoon Yi
- Department of Mechanical Engineering; Ulsan National Institute of Science and Technology (UNIST); Ulsan 44919 Republic of Korea
| | - Won Gyu Bae
- School of Electrical Engineering; Soongsil University (SSU); Seoul 06978 Republic of Korea
| | - Moon Kyu Kwak
- Department of Mechanical Engineering; Kyungpook National University; Daegu 41566 Republic of Korea
| | - Hoon Eui Jeong
- Department of Mechanical Engineering; Ulsan National Institute of Science and Technology (UNIST); Ulsan 44919 Republic of Korea
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Aydin D, Kizilel S. P2X7 receptor antagonist delivery vehicle based on photocrosslinked amphiphilic hybrid gels. RSC Adv 2018; 8:18216-18226. [PMID: 35541129 PMCID: PMC9080578 DOI: 10.1039/c8ra01460d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 05/11/2018] [Indexed: 12/27/2022] Open
Abstract
We report here a method for the synthesis of a unique hybrid gel system for the sustained delivery of P2X7 receptor (P2X7R) antagonist. P2X7R has been reported as a key mediator in inflammatory processes and controlled delivery of this molecule would be critical for the treatment of inflammatory arthritis. The hybrid gel designed here for the sustained delivery of P2X7R antagonists is based on crosslinked hydrophobic styrene-butadiene-styrene (SBS) polymer as a continuous network, where hydrogel particles prepared with hydrophilic poly(ethylene glycol) (PEG) were embedded into this system. PEG hydrogel particle-incorporated SBS gels were characterized through electron microscopy, water contact angle observations, and strong mechanical properties were confirmed through nanoindentation measurements. The release of P2X7R antagonist from these hybrid hydrogel-elastomer system demonstrated a sustained drug release profile up to 28 days at physiological pH, which was not observed in earlier reports. We obtained drug release percentages ranging from 49.72% to 93.04% which indicated the tunability of release through SBS crosslinking and hydrophilic/hydrophobic nature of SBS. This tunability is significant to achieve simultaneous improvements in drug efficacy with reduced side effects. CellTiter-Glo luminescence measurements using human kidney cells revealed that these networks are non-toxic and highly biocompatible with percent cell viabilities of higher than 85%. The approach presented here with crosslinked, amphiphilic and elastic SBS gel systems is not only promising for extended release of P2X7R antagonist but could also allow for incorporation of different molecules so that simultaneous/sequential and extended release profiles for therapeutic molecules could be achieved. We report here a method for the synthesis of a unique hybrid gel system for the sustained delivery of P2X7 receptor (P2X7R) antagonist.![]()
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Affiliation(s)
- Derya Aydin
- Department of Chemical and Biological Engineering
- Koc University
- Sariyer
- Turkey
| | - Seda Kizilel
- Department of Chemical and Biological Engineering
- Koc University
- Sariyer
- Turkey
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Frost SJ, Mawad D, Hook J, Lauto A. Micro- and Nanostructured Biomaterials for Sutureless Tissue Repair. Adv Healthc Mater 2016; 5:401-14. [PMID: 26725593 DOI: 10.1002/adhm.201500589] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 09/23/2015] [Indexed: 01/01/2023]
Abstract
Sutureless procedures for wound repair and closure have recently integrated nanostructured devices to improve their effectiveness and clinical outcome. This review highlights the major advances in gecko-inspired bioadhesives that relies mostly on van der Waals bonding forces. These are challenged by the moist environment of surgical settings that weaken adherence to tissue. The incorporation of nanoparticles in biomatrices and their role in tissue repair and drug delivery is also reviewed with an emphasis on procedures involving adhesives that are laser-activated. Nanostructured adhesive devices have the advantage of being minimally invasive to tissue, can seal wounds, and deliver drugs in situ. All these tasks are very difficult to accomplish by sutures or staples that are invasive to host organs and often cause scarring.
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Affiliation(s)
- Samuel J. Frost
- School of Science and Health; University of Western Sydney; Penrith NSW 2751 Australia
| | - D. Mawad
- Department of Materials; Imperial College London; SW7 2AZ UK
- School of Materials Science and Engineering; University of New South Wales; Sydney 2052 Australia
| | - J. Hook
- School of Chemistry; University of New South Wales; Sydney 2052 Australia
| | - Antonio Lauto
- School of Science and Health; University of Western Sydney; Penrith NSW 2751 Australia
- The Biomedical Engineering and Neuroscience (BENS) Research Group; The MARCS Institute; Penrith NSW 2751 Australia
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Lee E, Zhang H, Jackson JK, Lim CJ, Chiao M. Janus films with stretchable and waterproof properties for wound care and drug delivery applications. RSC Adv 2016. [DOI: 10.1039/c6ra16232k] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Janus PDMS films with porous/nonporous structures are fabricated for wound care. The film has good stretchability, waterproof and breathable surfaces and non-stick properties, which enhance its performance compared to traditional wound bandages.
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Affiliation(s)
- Ethan Lee
- Department of Mechanical Engineering
- University of British Columbia
- Vancouver
- Canada
| | - Hongbin Zhang
- Department of Mechanical Engineering
- University of British Columbia
- Vancouver
- Canada
| | - John K. Jackson
- Department of Pharmaceutical Sciences
- University of British Columbia
- Vancouver
- Canada
| | - Chinten James Lim
- Department of Pediatrics
- Child & Family Research Institute
- University of British Columbia
- Vancouver
- Canada
| | - Mu Chiao
- Department of Mechanical Engineering
- University of British Columbia
- Vancouver
- Canada
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Annabi N, Tamayol A, Shin SR, Ghaemmaghami AM, Peppas NA, Khademhosseini A. Surgical Materials: Current Challenges and Nano-enabled Solutions. NANO TODAY 2014; 9:574-589. [PMID: 25530795 PMCID: PMC4266934 DOI: 10.1016/j.nantod.2014.09.006] [Citation(s) in RCA: 118] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Surgical adhesive biomaterials have emerged as substitutes to sutures and staples in many clinical applications. Nano-enabled materials containing nanoparticles or having a distinct nanotopography have been utilized for generation of a new class of surgical materials with enhanced functionality. In this review, the state of the art in the development of conventional surgical adhesive biomaterials is critically reviewed and their shortcomings are outlined. Recent advancements in generation of nano-enabled surgical materials with their potential future applications are discussed. This review will open new avenues for the innovative development of the next generation of tissue adhesives, hemostats, and sealants with enhanced functionality for various surgical applications.
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Affiliation(s)
- Nasim Annabi
- Center for Biomaterials Innovation, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA ; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA ; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
| | - Ali Tamayol
- Center for Biomaterials Innovation, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA ; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Su Ryon Shin
- Center for Biomaterials Innovation, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA ; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA ; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
| | - Amir M Ghaemmaghami
- Division of Immunology, School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, United Kingdom
| | - Nicholas A Peppas
- Department of Biomedical Engineering, Biomedical Engineering, The University of Texas at Austin, Austin, TX, USA
| | - Ali Khademhosseini
- Center for Biomaterials Innovation, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA ; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA ; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA ; Department of Biomedical Engineering, Biomedical Engineering, The University of Texas at Austin, Austin, TX, USA ; Department of Maxillofacial Biomedical Engineering and Institute of Oral Biology, School of Dentistry, Kyung Hee University, Seoul 130-701, Republic of Korea ; Department of Physics, King Abdulaziz University, Jeddah 21569, Saudi Arabia
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