1
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Jirvankar P, Agrawal S, Chambhare N, Agrawal R. Harnessing Biopolymer Gels for Theranostic Applications: Imaging Agent Integration and Real-Time Monitoring of Drug Delivery. Gels 2024; 10:535. [PMID: 39195064 DOI: 10.3390/gels10080535] [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: 05/31/2024] [Revised: 07/20/2024] [Accepted: 07/22/2024] [Indexed: 08/29/2024] Open
Abstract
Biopolymer gels have gained tremendous potential for therapeutic applications due to their biocompatibility, biodegradability, and ability to adsorb and bind biological fluids, making them attractive for drug delivery and therapy. In this study, the versatility of biopolymer gels is explored in theranostic backgrounds, with a focus on integrating imaging features and facilitating real-time monitoring of drug delivery. Different methods of delivery are explored for incorporating imaging agents into biopolymer gels, including encapsulation, surface functionalization, nanoparticle encapsulation, and layer-by-layer assembly techniques. These methods exhibit the integration of agents and real-time monitoring drug delivery. We summarize the synthesis methods, general properties, and functional mechanisms of biopolymer gels, demonstrating their broad applications as multimodal systems for imaging-based therapeutics. These techniques not only enable multiple imaging but also provide signal enhancement and facilitate imaging targets, increasing the diagnostic accuracy and therapeutic efficacy. In addition, current techniques for incorporating imaging agents into biopolymer gels are discussed, as well as their role in precise drug delivery and monitoring.
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Affiliation(s)
- Pranita Jirvankar
- Datta Meghe College of Pharmacy, Datta Meghe Institute of Higher Education and Research (Deemed to Be University), Wardha 442001, Maharashtra, India
| | - Surendra Agrawal
- Datta Meghe College of Pharmacy, Datta Meghe Institute of Higher Education and Research (Deemed to Be University), Wardha 442001, Maharashtra, India
| | - Nikhita Chambhare
- Datta Meghe College of Pharmacy, Datta Meghe Institute of Higher Education and Research (Deemed to Be University), Wardha 442001, Maharashtra, India
| | - Rishabh Agrawal
- Bajiraoji Karanjekar College of Pharmacy, Sakoli 441802, Maharashtra, India
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2
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Alves D, Araújo JC, Fangueiro R, Ferreira DP. Localized Therapeutic Approaches Based on Micro/Nanofibers for Cancer Treatment. Molecules 2023; 28:molecules28073053. [PMID: 37049815 PMCID: PMC10096407 DOI: 10.3390/molecules28073053] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 03/23/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023] Open
Abstract
Cancer remains one of the most challenging health problems worldwide, and localized therapeutic approaches based on micro/nanofibers have shown potential for its treatment. Micro/nanofibers offer several advantages as a drug delivery system, such as high surface area, tunable pore size, and sustained release properties, which can improve drug efficacy and reduce side effects. In addition, functionalization of these fibers with nanoparticles can enhance their targeting and therapeutic capabilities. Localized delivery of drugs and/or other therapeutic agents via micro/nanofibers can also help to overcome the limitations of systemic administration, such as poor bioavailability and off-target effects. Several studies have shown promising results in preclinical models of cancer, including inhibition of tumor growth and improved survival rates. However, more research is needed to overcome technical and regulatory challenges to bring these approaches to clinical use. Localized therapeutic approaches based on micro/nanofibers hold great promise for the future of cancer treatment, providing a targeted, effective, and minimally invasive alternative to traditional treatments. The main focus of this review is to explore the current treatments utilizing micro/nanofibers, as well as localized drug delivery systems that rely on fibrous structures to deliver and release drugs for the treatment of cancer in a specific area.
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3
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He H, Zhang X, Du L, Ye M, Lu Y, Xue J, Wu J, Shuai X. Molecular imaging nanoprobes for theranostic applications. Adv Drug Deliv Rev 2022; 186:114320. [PMID: 35526664 DOI: 10.1016/j.addr.2022.114320] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 04/11/2022] [Accepted: 04/30/2022] [Indexed: 12/13/2022]
Abstract
As a non-invasive imaging monitoring method, molecular imaging can provide the location and expression level of disease signature biomolecules in vivo, leading to early diagnosis of relevant diseases, improved treatment strategies, and accurate assessment of treating efficacy. In recent years, a variety of nanosized imaging probes have been developed and intensively investigated in fundamental/translational research and clinical practice. Meanwhile, as an interdisciplinary discipline, this field combines many subjects of chemistry, medicine, biology, radiology, and material science, etc. The successful molecular imaging not only requires advanced imaging equipment, but also the synthesis of efficient imaging probes. However, limited summary has been reported for recent advances of nanoprobes. In this paper, we summarized the recent progress of three common and main types of nanosized molecular imaging probes, including ultrasound (US) imaging nanoprobes, magnetic resonance imaging (MRI) nanoprobes, and computed tomography (CT) imaging nanoprobes. The applications of molecular imaging nanoprobes were discussed in details. Finally, we provided an outlook on the development of next generation molecular imaging nanoprobes.
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Affiliation(s)
- Haozhe He
- Nanomedicine Research Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China; Department of Pediatrics, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Xindan Zhang
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Lihua Du
- PCFM Lab of Ministry of Education, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510260, China
| | - Minwen Ye
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yonglai Lu
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jiajia Xue
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Jun Wu
- PCFM Lab of Ministry of Education, School of Biomedical Engineering, Sun Yat-sen University, Shenzhen 518107, China.
| | - Xintao Shuai
- Nanomedicine Research Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China; PCFM Lab of Ministry of Education, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510260, China.
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4
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Mehta P, Rasekh M, Patel M, Onaiwu E, Nazari K, Kucuk I, Wilson PB, Arshad MS, Ahmad Z, Chang MW. Recent applications of electrical, centrifugal, and pressurised emerging technologies for fibrous structure engineering in drug delivery, regenerative medicine and theranostics. Adv Drug Deliv Rev 2021; 175:113823. [PMID: 34089777 DOI: 10.1016/j.addr.2021.05.033] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/11/2021] [Accepted: 05/31/2021] [Indexed: 12/16/2022]
Abstract
Advancements in technology and material development in recent years has led to significant breakthroughs in the remit of fiber engineering. Conventional methods such as wet spinning, melt spinning, phase separation and template synthesis have been reported to develop fibrous structures for an array of applications. However, these methods have limitations with respect to processing conditions (e.g. high processing temperatures, shear stresses) and production (e.g. non-continuous fibers). The materials that can be processed using these methods are also limited, deterring their use in practical applications. Producing fibrous structures on a nanometer scale, in sync with the advancements in nanotechnology is another challenge met by these conventional methods. In this review we aim to present a brief overview of conventional methods of fiber fabrication and focus on the emerging fiber engineering techniques namely electrospinning, centrifugal spinning and pressurised gyration. This review will discuss the fundamental principles and factors governing each fabrication method and converge on the applications of the resulting spun fibers; specifically, in the drug delivery remit and in regenerative medicine.
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Affiliation(s)
- Prina Mehta
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, UK
| | - Manoochehr Rasekh
- College of Engineering, Design and Physical Sciences, Brunel University London, Middlesex UB8 3PH, UK
| | - Mohammed Patel
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, UK
| | - Ekhoerose Onaiwu
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, UK
| | - Kazem Nazari
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, UK
| | - I Kucuk
- Institute of Nanotechnology, Gebze Technical University, 41400 Gebze, Turkey
| | - Philippe B Wilson
- School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Brackenhurst Campus, Southwell NG25 0QF, UK
| | | | - Zeeshan Ahmad
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, UK
| | - Ming-Wei Chang
- Nanotechnology and Integrated Bioengineering Centre, University of Ulster, Jordanstown Campus, Newtownabbey, Northern Ireland BT37 0QB, UK.
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Schoeller J, Itel F, Wuertz-Kozak K, Fortunato G, Rossi RM. pH-Responsive Electrospun Nanofibers and Their Applications. POLYM REV 2021. [DOI: 10.1080/15583724.2021.1939372] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jean Schoeller
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, St.Gallen, Switzerland
- Department of Health Science and Technology, ETH Zürich, Zürich, Switzerland
| | - Fabian Itel
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, St.Gallen, Switzerland
| | - Karin Wuertz-Kozak
- Department of Health Science and Technology, ETH Zürich, Zürich, Switzerland
- Department of Biomedical Engineering, Rochester Institute of Technology (RIT), Rochester, New York, USA
| | - Giuseppino Fortunato
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, St.Gallen, Switzerland
| | - René M. Rossi
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, St.Gallen, Switzerland
- Department of Health Science and Technology, ETH Zürich, Zürich, Switzerland
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6
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Mosselhy DA, Assad M, Sironen T, Elbahri M. Nanotheranostics: A Possible Solution for Drug-Resistant Staphylococcus aureus and their Biofilms? NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:E82. [PMID: 33401760 PMCID: PMC7824312 DOI: 10.3390/nano11010082] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/24/2020] [Accepted: 12/30/2020] [Indexed: 12/14/2022]
Abstract
Staphylococcus aureus is a notorious pathogen that colonizes implants (orthopedic and breast implants) and wounds with a vicious resistance to antibiotic therapy. Methicillin-resistant S. aureus (MRSA) is a catastrophe mainly restricted to hospitals and emerged to community reservoirs, acquiring resistance and forming biofilms. Treating biofilms is problematic except via implant removal or wound debridement. Nanoparticles (NPs) and nanofibers could combat superbugs and biofilms and rapidly diagnose MRSA. Nanotheranostics combine diagnostics and therapeutics into a single agent. This comprehensive review is interpretative, utilizing mainly recent literature (since 2016) besides the older remarkable studies sourced via Google Scholar and PubMed. We unravel the molecular S. aureus resistance and complex biofilm. The diagnostic properties and detailed antibacterial and antibiofilm NP mechanisms are elucidated in exciting stories. We highlight the challenges of bacterial infections nanotheranostics. Finally, we discuss the literature and provide "three action appraisals". (i) The first appraisal consists of preventive actions (two wings), avoiding unnecessary hospital visits, hand hygiene, and legislations against over-the-counter antibiotics as the general preventive wing. Our second recommended preventive wing includes preventing the adverse side effects of the NPs from resistance and toxicity by establishing standard testing procedures. These standard procedures should provide breakpoints of bacteria's susceptibility to NPs and a thorough toxicological examination of every single batch of synthesized NPs. (ii) The second appraisal includes theranostic actions, using nanotheranostics to diagnose and treat MRSA, such as what we call "multifunctional theranostic nanofibers. (iii) The third action appraisal consists of collaborative actions.
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Affiliation(s)
- Dina A. Mosselhy
- Nanochemistry and Nanoengineering, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, 02150 Espoo, Finland;
- Microbiological Unit, Fish Diseases Department, Animal Health Research Institute, Dokki, Giza 12618, Egypt
- Department of Virology, Faculty of Medicine, University of Helsinki, P.O. Box 21, 00014 Helsinki, Finland;
- Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, P.O. Box 66, 00014 Helsinki, Finland
| | - Mhd Assad
- Nanochemistry and Nanoengineering, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, 02150 Espoo, Finland;
| | - Tarja Sironen
- Department of Virology, Faculty of Medicine, University of Helsinki, P.O. Box 21, 00014 Helsinki, Finland;
- Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, P.O. Box 66, 00014 Helsinki, Finland
| | - Mady Elbahri
- Nanochemistry and Nanoengineering, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, 02150 Espoo, Finland;
- Nanochemistry and Nanoengineering, Institute for Materials Science, Faculty of Engineering, Kiel University, 24143 Kiel, Germany
- Center for Nanotechnology, Zewail City of Science and Technology, Sheikh Zayed District, Giza 12588, Egypt
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7
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Dziemidowicz K, Sang Q, Wu J, Zhang Z, Zhou F, Lagaron JM, Mo X, Parker GJM, Yu DG, Zhu LM, Williams GR. Electrospinning for healthcare: recent advancements. J Mater Chem B 2021; 9:939-951. [DOI: 10.1039/d0tb02124e] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This perspective explores recent developments and innovations in the electrospinning technique and their potential applications in biomedicine.
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Affiliation(s)
| | - Qingqing Sang
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
| | - Jinglei Wu
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
| | - Ziwei Zhang
- UCL School of Pharmacy
- University College London
- London WC1N 1AX
- UK
| | - Fenglei Zhou
- UCL School of Pharmacy
- University College London
- London WC1N 1AX
- UK
- Centre for Medical Image Computing, UCL Computer Science
| | - Jose M. Lagaron
- Novel Materials and Nanotechnology Group
- Institute of Agrochemistry and Food Technology
- Spanish Council for Scientific Research
- Valencia 46100
- Spain
| | - Xiumei Mo
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
| | - Geoff J. M. Parker
- Centre for Medical Image Computing, UCL Computer Science
- University College London
- London WC1V 6LJ
- UK
| | - Deng-Guang Yu
- School of Materials Science & Engineering, University of Shanghai for Science and Technology
- Shanghai 200093
- China
| | - Li-Min Zhu
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
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8
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Vlachou M, Siamidi A, Dotsikas Y. Utilization of a Single Experimental Design for the Optimization of Furosemide Modified-Release Tablet Formulations. Curr Drug Deliv 2020; 16:931-939. [PMID: 31663479 DOI: 10.2174/1567201816666191029130324] [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: 02/25/2019] [Revised: 09/11/2019] [Accepted: 10/15/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND The loop diuretic drug furosemide is widely used for the treatment of edema in various conditions, such as pulmonary, cardiac and hepatic edema, as well as cardiac infarction. Furosemide, due to its poor water solubility and low bioavailability after oral administration of conventional dosage form, is categorized as class IV in the biopharmaceutical classification system. OBJECTIVE In the case of furosemide, this release profile is responsible for various physiological problems, acute diuresis being the most serious. This adverse effect can be circumvented by the modified release of furosemide from tablet formulations compared to those forms designed for immediate release. METHODS In this report, a D-optimal combined experimental design was applied for the development of furosemide containing bilayer and compression coated tablets, aiming at lowering the drug's burst release in the acidic environment of the stomach. A D-optimal combined design was selected in order to include all requirements in one design with many levels for the factors examined. The following responses were selected as the ones reflecting better criteria for the desired drug release: dissolution at 120 min (30-40%), 300 min (60-70%) and 480 min >95%. The new formulations, suggested by the Doptimal combined design, incorporated different grades of Eudragit ® polymers (Eudragit® E100 and Eudragit® L100-55), lactose monohydrate and HPMC K15M. The dissolution profile of furosemide from these systems was probed via in vitro dissolution experiments in buffer solutions simulating the pH of the gastrointestinal tract. RESULTS The results indicate that the use of Eudragit® E100 in conjunction with lactose monohydrate led to 21.32-40.85 % drug release, in the gastric medium, in both compression-coated and bilayer tablets. This is lower than the release of the mainstream drug Lasix® (t=120 min, 44.5% drug release), implying longer gastric retention and drug waste minimization. CONCLUSION Furosemide's release in the intestinal environment, from compression coated tablets incorporating Eudragit® L100-55 and HPMC K15M in the inner core or one of the two layers of the bilayer tablets, was delayed, compared to Lasix®.
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Affiliation(s)
- Marilena Vlachou
- Section of Pharmaceutical Technology, School of Health Sciences, National and Kapodistrian University of Athens, Athens 15784, Greece
| | - Angeliki Siamidi
- Section of Pharmaceutical Technology, School of Health Sciences, National and Kapodistrian University of Athens, Athens 15784, Greece
| | - Yannis Dotsikas
- Section of Pharmaceutical Chemistry, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens 15784, Greece
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9
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Self-inflating floating nanofiber membranes for controlled drug delivery. Int J Pharm 2020; 579:119164. [DOI: 10.1016/j.ijpharm.2020.119164] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 02/10/2020] [Accepted: 02/17/2020] [Indexed: 12/19/2022]
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10
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Sofi HS, Abdal-Hay A, Ivanovski S, Zhang YS, Sheikh FA. Electrospun nanofibers for the delivery of active drugs through nasal, oral and vaginal mucosa: Current status and future perspectives. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 111:110756. [PMID: 32279775 DOI: 10.1016/j.msec.2020.110756] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 12/04/2019] [Accepted: 02/15/2020] [Indexed: 12/26/2022]
Abstract
Transmucosal surfaces bypass many limitations associated with conventional drug delivery (oral and parenteral routes), such as poor absorption rate, enzymatic activity, acidic environment and first-pass metabolism occurring inside the liver. However, these surfaces have several disadvantages such as poor retention time, narrow absorption window and continuous washout of the drug by the surrounding fluids. Electrospun nanofibers with their unique surface properties and encapsulation efficiency may act as novel drug carriers to overcome the challenges associated with conventional drug delivery routes, so as to achieve desired therapeutic responses. This review article provides detailed information regarding the challenges faced in the mucosal delivery of drugs, and the use of nanofiber systems as an alternative to deliver drugs to the systemic circulation, as well as local drug administration. The physiological and anatomical features of different types of mucosal surfaces and current challenges are systematically discussed. We also address future considerations in the area of transmucosal delivery of some important drugs.
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Affiliation(s)
- Hasham S Sofi
- Department of Nanotechnology, University of Kashmir, Hazratbal, Srinagar 190006, Jammu and Kashmir, India
| | - Abdalla Abdal-Hay
- The University of Queensland, School of Dentistry, Oral Health Centre Herston, 288 Herston Road, Herston QLD 4006, Australia; Department of Engineering Materials and Mechanical Design, Faculty of Engineering, South Valley University, Qena 83523, Egypt
| | - Saso Ivanovski
- The University of Queensland, School of Dentistry, Oral Health Centre Herston, 288 Herston Road, Herston QLD 4006, Australia
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, United States of America
| | - Faheem A Sheikh
- Department of Nanotechnology, University of Kashmir, Hazratbal, Srinagar 190006, Jammu and Kashmir, India.
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11
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Rezaei SJT, Malekzadeh AM, Ramazani A, Niknejad H. pH-Sensitive Magnetite Nanoparticles Modified with Hyperbranched Polymers and Folic Acid for Targeted Imaging and Therapy. Curr Drug Deliv 2019; 16:839-848. [DOI: 10.2174/1567201816666191002102353] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 07/27/2019] [Accepted: 08/06/2019] [Indexed: 11/22/2022]
Abstract
Objective:
A novel pH-sensitive superparamagnetic drug delivery system was developed
based on quercetin loaded hyperbranched polyamidoamine-b-polyethylene glycol-folic acid-modified
Fe3O4 nanoparticles (Fe3O4@PAMAM-b-PEG-FA).
Methods:
The nanoparticles exhibit excellent water dispersity with well-defined size distribution
(around 51.8 nm) and strong magnetisability. In vitro release studies demonstrated that the quercetinloaded
Fe3O4@PAMAM-b-PEG-FA nanoparticles are stable at normal physiologic conditions (pH 7.4
and 37°C) but sensitive to acidic conditions (pH 5.6 and 37°C), which led to the rapid release of the
loaded drug.
Results:
Fluorescent microscopy results indicated that the Fe3O4@PAMAM-b-PEG-FA nanoparticles
could be efficiently accumulated in tumor tissue compared with non-folate conjugated nanoparticles.
Also, in comparison with free quercetin, the quercetin loaded Fe3O4@PAMAM-b-PEG-FA exerts
higher cytotoxicity. Furthermore, this magnetic nanocarrier showed high MRI sensitivity, even in its
lower iron content.
Conclusion:
The results indicated that the prepared nanoparticles are an effective chemotherapy and
diagnosis system to inhibit proliferation and monitor the progression of tumor cells, respectively.
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Affiliation(s)
- Seyed Jamal Tabatabaei Rezaei
- Laboratory of novel drug delivery systems, Department of Chemistry, Faculty of Science, University of Zanjan, P.O. Box 45195-313, Zanjan, Iran
| | - Asemeh Mashhadi Malekzadeh
- Laboratory of novel drug delivery systems, Department of Chemistry, Faculty of Science, University of Zanjan, P.O. Box 45195-313, Zanjan, Iran
| | - Ali Ramazani
- Laboratory of novel drug delivery systems, Department of Chemistry, Faculty of Science, University of Zanjan, P.O. Box 45195-313, Zanjan, Iran
| | - Hassan Niknejad
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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12
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Theerasilp M, Crespy D. pH-Responsive Nanofibers for Precise and Sequential Delivery of Multiple Payloads. ACS APPLIED BIO MATERIALS 2019; 2:4283-4290. [PMID: 35021443 DOI: 10.1021/acsabm.9b00551] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Effective combination therapies can be achieved by programming materials for controlling release sequence, timing, and dose of multiple payloads. Herein, we synthesize dextran esters by coesterification of dextran, which display responsive properties at a precise pH threshold between 5.0 and 7.0. Multilayers electrospun nanofibers are prepared so that three different payloads are entrapped in three different dextran esters. The release of the three drugs can be sequentially and independently activated by a gradual increase of pH value. Because both pH threshold and release kinetics are matching conditions encountered by aliments along the gastrointestinal tract, these dextran ester multilayer nanofibers are promising for oral drug delivery.
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Affiliation(s)
- Man Theerasilp
- Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
| | - Daniel Crespy
- Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
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13
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Nunes R, Neves JD, Sarmento B. Nanoparticles for the regulation of intestinal inflammation: opportunities and challenges. Nanomedicine (Lond) 2019; 14:2631-2644. [PMID: 31612773 DOI: 10.2217/nnm-2019-0191] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Prevalence of chronic inflammation of the gastrointestinal tract is increasing, emerging as a public health challenge. Conventional drug delivery systems targeting the colon have improved the treatment of inflammatory bowel disease. However, therapy frequently results in inconsistent efficacy and toxicity problems. Novel approaches based on nanoparticles offer several advantages over conventional dosage forms due to their ability to selectively target inflamed tissues. Several formulation efforts have been made in order to obtain increasingly selective nanosized systems, some with promising results in animal models of colitis. Despite all advances, no nanomedicines are yet approved for clinical use in inflammatory bowel disease. This review discusses the most recent efforts made toward the development of nanoparticles for regulating chronic intestinal inflammation.
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Affiliation(s)
- Rute Nunes
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, 4200-135 Porto, Portugal
| | - José das Neves
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, 4200-135 Porto, Portugal.,CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, 4585-116 Gandra, Portugal
| | - Bruno Sarmento
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, 4200-135 Porto, Portugal.,CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, 4585-116 Gandra, Portugal
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Vlachou M, Kikionis S, Siamidi A, Kyriakou S, Tsotinis A, Ioannou E, Roussis V. Development and Characterization of Eudragit ®-Based Electrospun Nanofibrous Mats and Their Formulation into Nanofiber Tablets for the Modified Release of Furosemide. Pharmaceutics 2019; 11:E480. [PMID: 31533252 PMCID: PMC6781502 DOI: 10.3390/pharmaceutics11090480] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/11/2019] [Accepted: 09/12/2019] [Indexed: 01/29/2023] Open
Abstract
Furosemide, a chloride channel blocker ordinarily used as a high-ceiling or loop diuretic, is practically insoluble in water and dilute acids. Due to its acidic nature, furosemide is mostly absorbed in the stomach and in the upper small intestine. Efforts have focused on the development of sustained release systems of furosemide in order to improve the effectiveness of the drug, which exhibits poor aqueous solubility and poor permeability. Recently, electrospun nanofibrous drug delivery systems have emerged as promising alternative solid-dosage forms due to their advantages of high porosity, high surface to volume ratio, and high drug-loading efficacy. Herein, a number of nanofibrous mats composed of different types of Eudragit® polymers in various concentrations and combinations loaded with furosemide were designed, successfully electrospun, and characterized using SEM, FTIR, DSC, and TGA analyses. The nanofibrous nonwovens were formulated in nanofiber tablets and the release profile of furosemide from them was evaluated at pH 1.2 and 6.8 and compared to that of physical mixture matrix tablets of analogous composition as well as to that of a commercial formulation. It was found that the release of furosemide was compatible with the gastroretentive and slower intestinal release requirements with a well-defined absorption window, while some nanofiber formulations could act as furosemide carriers in emergency situations where a relatively fast onset of its action is required, as in the case of critically ill post-traumatic patients.
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Affiliation(s)
- Marilena Vlachou
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15784 Athens, Greece.
| | - Stefanos Kikionis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15771 Athens, Greece.
| | - Angeliki Siamidi
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15784 Athens, Greece.
| | - Sotiria Kyriakou
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15784 Athens, Greece.
| | - Andrew Tsotinis
- Section of Pharmaceutical Chemistry, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15784 Athens, Greece.
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15771 Athens, Greece.
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15771 Athens, Greece.
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15
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Aliheidari N, Aliahmad N, Agarwal M, Dalir H. Electrospun Nanofibers for Label-Free Sensor Applications. SENSORS (BASEL, SWITZERLAND) 2019; 19:E3587. [PMID: 31426538 PMCID: PMC6720643 DOI: 10.3390/s19163587] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 08/12/2019] [Accepted: 08/14/2019] [Indexed: 12/13/2022]
Abstract
Electrospinning is a simple, low-cost and versatile method for fabricating submicron and nano size fibers. Due to their large surface area, high aspect ratio and porous structure, electrospun nanofibers can be employed in wide range of applications. Biomedical, environmental, protective clothing and sensors are just few. The latter has attracted a great deal of attention, because for biosensor application, nanofibers have several advantages over traditional sensors, including a high surface-to-volume ratio and ease of functionalization. This review provides a short overview of several electrospun nanofibers applications, with an emphasis on biosensor applications. With respect to this area, focus is placed on label-free sensors, pertaining to both recent advances and fundamental research. Here, label-free sensor properties of sensitivity, selectivity, and detection are critically evaluated. Current challenges in this area and prospective future work is also discussed.
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Affiliation(s)
- Nahal Aliheidari
- School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA
- Integrated Nanosystems Development Institute (INDI), Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, USA
| | - Nojan Aliahmad
- Integrated Nanosystems Development Institute (INDI), Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, USA
- School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Mangilal Agarwal
- Integrated Nanosystems Development Institute (INDI), Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, USA.
- Purdue School of Engineering and Technology, Indiana University-Purdue University, Indianapolis, IN 46202, USA.
| | - Hamid Dalir
- Integrated Nanosystems Development Institute (INDI), Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, USA.
- Purdue School of Engineering and Technology, Indiana University-Purdue University, Indianapolis, IN 46202, USA.
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16
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Tyo KM, Minooei F, Curry KC, NeCamp SM, Graves DL, Fried JR, Steinbach-Rankins JM. Relating Advanced Electrospun Fiber Architectures to the Temporal Release of Active Agents to Meet the Needs of Next-Generation Intravaginal Delivery Applications. Pharmaceutics 2019; 11:E160. [PMID: 30987206 PMCID: PMC6523330 DOI: 10.3390/pharmaceutics11040160] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 03/28/2019] [Accepted: 03/30/2019] [Indexed: 02/07/2023] Open
Abstract
Electrospun fibers have emerged as a relatively new delivery platform to improve active agent retention and delivery for intravaginal applications. While uniaxial fibers have been explored in a variety of applications including intravaginal delivery, the consideration of more advanced fiber architectures may offer new options to improve delivery to the female reproductive tract. In this review, we summarize the advancements of electrospun coaxial, multilayered, and nanoparticle-fiber architectures utilized in other applications and discuss how different material combinations within these architectures provide varied durations of release, here categorized as either transient (within 24 h), short-term (24 h to one week), or sustained (beyond one week). We seek to systematically relate material type and fiber architecture to active agent release kinetics. Last, we explore how lessons derived from these architectures may be applied to address the needs of future intravaginal delivery platforms for a given prophylactic or therapeutic application. The overall goal of this review is to provide a summary of different fiber architectures that have been useful for active agent delivery and to provide guidelines for the development of new formulations that exhibit release kinetics relevant to the time frames and the diversity of active agents needed in next-generation multipurpose applications.
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Affiliation(s)
- Kevin M Tyo
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, KY 40202, USA.
- Center for Predictive Medicine, Louisville, KY 40202, USA.
| | - Farnaz Minooei
- Department of Chemical Engineering, University of Louisville, Louisville, KY 40292, USA.
| | - Keegan C Curry
- Department of Biology, University of Louisville, Louisville, KY 40292, USA.
| | - Sarah M NeCamp
- Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY 40292, USA.
| | - Danielle L Graves
- Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY 40292, USA.
| | - Joel R Fried
- Department of Chemical Engineering, University of Louisville, Louisville, KY 40292, USA.
| | - Jill M Steinbach-Rankins
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, KY 40202, USA.
- Center for Predictive Medicine, Louisville, KY 40202, USA.
- Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY 40292, USA.
- Department of Microbiology and Immunology, School of Medicine, University of Louisville, Louisville, KY 40292, USA.
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17
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Borah R, Ingavle GC, Sandeman SR, Kumar A, Mikhalovsky SV. Amine-Functionalized Electrically Conductive Core-Sheath MEH-PPV:PCL Electrospun Nanofibers for Enhanced Cell-Biomaterial Interactions. ACS Biomater Sci Eng 2018; 4:3327-3346. [PMID: 33435069 DOI: 10.1021/acsbiomaterials.8b00624] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In the present study, a conducting polymer, poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) along with a biodegradable polymer poly(ε-caprolactone) (PCL) was used to prepare an electrically conductive, biocompatible, bioactive, and biodegradable nanofibrous scaffold for possible use in neural tissue engineering applications. Core-sheath electrospun nanofibers of PCL as the core and MEH-PPV as the sheath, were surface-functionalized with (3-aminopropyl) triethoxysilane (APTES) and 1,6-hexanediamine to obtain amine-functionalized surface to facilitate cell-biomaterial interactions with the aim of replacing the costly biomolecules such as collagen, fibronectin, laminin, and arginyl-glycyl-aspartic acid (RGD) peptide for surface modification. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) confirmed the formation of core-sheath morphology of the electrospun nanofibers, whereas Fourier-transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) revealed successful incorporation of amine functionality after surface functionalization. Adhesion, spreading, and proliferation of 3T3 fibroblasts were enhanced on the surface-functionalized electrospun meshes, whereas the neuronal model rat pheochromocytoma 12 (PC12) cells also adhered and differentiated into sympathetic neurons on these meshes. Under a constant electric field of 500 mV for 2 h/day for 3 consecutive days, the PC12 cells displayed remarkable improvement in the neurite formation and outgrowth on the surface-functionalized meshes that was comparable to those on the collagen-coated meshes under no electrical signal. Electrical stimulation studies further demonstrated that electrically stimulated PC12 cells cultured on collagen I coated meshes yielded more and longer neurites than those of the unstimulated cells on the same scaffolds. The enhanced neurite growth and differentiation suggest the potential use of these scaffolds for neural tissue engineering applications.
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Affiliation(s)
- Rajiv Borah
- Materials Research Laboratory, Department of Physics, Tezpur University, Tezpur 784028, India
| | - Ganesh C Ingavle
- Biomaterials and Medical Devices Research Group, School of Pharmacy and Biomolecular Sciences, Huxley Building, University of Brighton, Brighton BN2 4GJ, United Kingdom.,Symbiosis Centre for Stem Cell Research, Symbiosis School of Biological Sciences, Symbiosis International University, Pune 412115, India
| | - Susan R Sandeman
- Biomaterials and Medical Devices Research Group, School of Pharmacy and Biomolecular Sciences, Huxley Building, University of Brighton, Brighton BN2 4GJ, United Kingdom
| | - Ashok Kumar
- Materials Research Laboratory, Department of Physics, Tezpur University, Tezpur 784028, India
| | - Sergey V Mikhalovsky
- ANAMAD Ltd., Sussex Innovation Centre, Science Park Square, Falmer, Brighton BN1 9SB, United Kingdom.,SD Asfendiyarov Kazakh National Medical University, Tole Bi Street 94, Almaty 050000, Kazakhstan
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18
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Bukhary H, Williams GR, Orlu M. Electrospun fixed dose formulations of amlodipine besylate and valsartan. Int J Pharm 2018; 549:446-455. [PMID: 30099215 DOI: 10.1016/j.ijpharm.2018.08.008] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 08/05/2018] [Accepted: 08/08/2018] [Indexed: 10/28/2022]
Abstract
Increasing numbers of elderly people require multi-drug therapies. One route to improve adherence rates is to prepare fixed dose combinations (FDCs), in which multiple active ingredients are loaded into a single formulation. Here, we report the use of electrospinning to prepare fast-dissolving oral FDCs containing amlodipine besylate and valsartan, two drugs prescribed as FDCs for the treatment of hypertension. Electrospun fibers were prepared loaded with one or both drugs, using polyvinylpyrrolidone as the polymer matrix. The fibers were largely cylindrical in morphology and comprise amorphous solid dispersions except with the highest loadings of amlodipine besylate. HPLC demonstrated drug entrapment efficiencies of >85% of the theoretical dose. The mats have folding endurances and thicknesses suitable for use as oral films. The amlodipine besylate-loaded systems are fast-dissolving, with >90% release obtained within 120 s. In contrast, valsartan release from its single-drug formulations took longer, ranging from 360 s to 24 min. With the FDC formulations, rapid release within 360 s was achieved when the loading was 5% w/w of each drug, but again the release time increased with drug loading. Electrospun fibers therefore have significant promise as FDCs, but the target drug and its loading need to be carefully considered.
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Affiliation(s)
- Haitham Bukhary
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Gareth R Williams
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK.
| | - Mine Orlu
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK.
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19
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Burgess K, Li H, Abo-Zeid Y, Williams GR. The Effect of Molecular Properties on Active Ingredient Release from Electrospun Eudragit Fibers. Pharmaceutics 2018; 10:pharmaceutics10030103. [PMID: 30042323 PMCID: PMC6161026 DOI: 10.3390/pharmaceutics10030103] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 05/11/2018] [Accepted: 05/16/2018] [Indexed: 12/02/2022] Open
Abstract
The formation of nanoscale fibers from pH-sensitive polymers is a route which has been widely explored for targeted drug delivery. In particular, the Eudragit L100 and S100 families of polymers have received significant attention for this purpose. However, while in some cases it is shown that making drug-loaded Eudragit polymers effectively prevents drug release in low-pH media where the polymer is insoluble, this is not always the case, and other studies have reported significant amounts of drug release at acidic pHs. In this study, we sought to gain insight into the factors influencing the release of active ingredients from Eudragit S100 (ES100) fibers. A family of materials was prepared loaded with the model active ingredients (AIs) benzoic acid, 1-naphthoic acid, 1-naphthylamine, and 9-anthracene carboxylic acid. Analogous systems were prepared with an AI-loaded core and an ES100 sheath. The resultant fibers were smooth and cylindrical in the majority of cases, and X-ray diffraction and differential scanning calorimetry showed them to comprise amorphous solid dispersions. When AI release from the monolithic fibers was probed, it was found that there was significant release at pH 1 in all cases except with 9-anthracene carboxylic acid. Analysis of the results indicated that both the molecular weight of the AI and its acidity/basicity are important in controlling release, with lower molecular weight AIs and basic species released more quickly. The same release trends are seen with the core/shell fibers, but AI release at pH 1 is attenuated. The most significant change between the monolithic and core/shell systems was observed in the case of 1-naphthylamine. Mathematical equations were devised to connect molecular properties and AI release under acidic conditions.
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Affiliation(s)
- Kieran Burgess
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK.
| | - Heyu Li
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK.
| | - Yasmin Abo-Zeid
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK.
| | - Gareth R Williams
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK.
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20
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Saha S, Roy A, Roy MN. Mechanistic Investigation of Inclusion Complexes of a Sulfa Drug with α- and β-Cyclodextrins. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b02619] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Subhadeep Saha
- Department of Chemistry, University of North Bengal, Darjeeling-734013, India
| | - Aditi Roy
- Department of Chemistry, University of North Bengal, Darjeeling-734013, India
| | - Mahendra Nath Roy
- Department of Chemistry, University of North Bengal, Darjeeling-734013, India
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21
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Usman MS, Hussein MZ, Fakurazi S, Ahmad Saad FF. Gadolinium-based layered double hydroxide and graphene oxide nano-carriers for magnetic resonance imaging and drug delivery. Chem Cent J 2017; 11:47. [PMID: 29086824 PMCID: PMC5449353 DOI: 10.1186/s13065-017-0275-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 05/23/2017] [Indexed: 01/05/2023] Open
Abstract
Gadolinium (Gd)-based contrasts remain one of the most accepted contrast agents for magnetic resonance imaging, which is among the world most recognized noninvasive techniques employed in clinical diagnosis of patients. At ionic state, Gd is considered toxic but less toxic in chelate form. A variety of nano-carriers, including gadolinium oxide (Gd2O3) nanoparticles have been used by researchers to improve the T1 and T2 contrasts of MR images. Even more recently, a few researchers have tried to incorporate contrast agents simultaneously with therapeutic agents using single nano-carrier for theranostic applications. The benefit of this concept is to deliver the drugs, such as anticancer drugs and at the same time to observe what happens to the cancerous cells. The delivery of both agents occurs concurrently. In addition, the toxicity of the anticancer drugs as well as the contrast agents will be significantly reduced due to the presence of the nano-carriers. The use of graphene oxide (GO) and layered double hydroxides (LDH) as candidates for this purpose is the subject of current research, due to their low toxicity and biocompatibility, which have the capacity to be used in theranostic researches. We review here, some of the key features of LDH and GO for simultaneous drugs and diagnostic agents delivery systems for use in theranostics applications.
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Affiliation(s)
- Muhammad Sani Usman
- Materials Synthesis and Characterization Laboratory, Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Mohd Zobir Hussein
- Materials Synthesis and Characterization Laboratory, Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
| | - Sharida Fakurazi
- Laboratory of Vaccines and Immunotherapeutics, Institute of Bioscience, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.,Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Fathinul Fikri Ahmad Saad
- Centre for Diagnostic and Nuclear Imaging, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
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22
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Core/shell poly(ethylene oxide)/Eudragit fibers for site-specific release. Int J Pharm 2017; 523:376-385. [PMID: 28344174 DOI: 10.1016/j.ijpharm.2017.03.038] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 03/16/2017] [Accepted: 03/18/2017] [Indexed: 11/22/2022]
Abstract
Electrospinning was used to prepare core/shell fibers containing the active pharmaceutical ingredients indomethacin (IMC) or mebeverine hydrochloride (MB-HCl). The shell of the fibers was fabricated from the pH sensitive Eudragit S100 polymer, while the drug-loaded core was based on the mucoadhesive poly(ethylene oxide) (PEO). Three different drug loadings (from 9 to 23% (w/w) of the core mass) were prepared, and for MB-HCl two different molecular weights of PEO were explored. The resultant fibers generally comprise smooth cylinders, although in some cases defects such as surface particles or flattened or merged fibers were visible. Transmission electron microscopy showed all the systems to have clear core and shell compartments. The drugs are present in the amorphous physical form in the fibers. Dissolution tests found that the fibers can effectively prevent release in acidic conditions representative of the stomach, particularly for the acidic indomethacin. After transfer to a pH 7.4 medium, sustained release over between 6 and 22h is observed. Given the mucoadhesive nature of the PEO core, after dissolution of the shell the fibers will be able to adhere to the walls of the intestinal tract and give sustained local drug release. This renders them promising for the treatment of conditions such as irritable bowel disease and colon cancer.
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23
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Balogh A, Farkas B, Pálvölgyi Á, Domokos A, Démuth B, Marosi G, Nagy ZK. Novel Alternating Current Electrospinning of Hydroxypropylmethylcellulose Acetate Succinate (HPMCAS) Nanofibers for Dissolution Enhancement: The Importance of Solution Conductivity. J Pharm Sci 2017; 106:1634-1643. [PMID: 28257818 DOI: 10.1016/j.xphs.2017.02.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 02/01/2017] [Accepted: 02/16/2017] [Indexed: 11/17/2022]
Abstract
Novel, high-yield alternating current electrospinning (ACES) and direct current electrospinning methods were investigated to prepare high-quality hydroxypropylmethylcellulose acetate succinate (HPMCAS) fibers for the dissolution enhancement of poorly soluble spironolactone. Although HPMCAS is of great pharmaceutical importance as a carrier of marketed solid dispersion-based products, it was found to be unprocessable using electrospinning. Addition of small amounts of polyethylene oxide as aid polymer provided smooth fibers with direct current electrospinning but strongly beaded products with ACES. Solution characteristics were thus modified by introducing further excipients. In the presence of sodium dodecyl sulfate, high-quality, HPMCAS-based fibers were obtained even at higher throughput rates of ACES owing to the change in conductivity (rather than surface tension). Replacement of sodium dodecyl sulfate with non-surface-active salts (calcium chloride and ammonium acetate) maintained the fine quality of nanofibers, confirming the importance of conductivity in ACES process. The HPMCAS-based fibers contained spironolactone in an amorphous form according to differential scanning calorimetry and X-ray powder diffraction. In vitro dissolution tests revealed fast drug release rates depending on the salt used to adjust conductivity. The presented results signify that ACES can be a prospective process for high-scale production of fibrous solid dispersions in which conductivity of solution has a fundamental role.
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Affiliation(s)
- Attila Balogh
- Organic Chemistry and Technology Department, Budapest University of Technology and Economics, Budapest 1111, Hungary
| | - Balázs Farkas
- Organic Chemistry and Technology Department, Budapest University of Technology and Economics, Budapest 1111, Hungary
| | - Ádám Pálvölgyi
- Organic Chemistry and Technology Department, Budapest University of Technology and Economics, Budapest 1111, Hungary
| | - András Domokos
- Organic Chemistry and Technology Department, Budapest University of Technology and Economics, Budapest 1111, Hungary
| | - Balázs Démuth
- Organic Chemistry and Technology Department, Budapest University of Technology and Economics, Budapest 1111, Hungary
| | - György Marosi
- Organic Chemistry and Technology Department, Budapest University of Technology and Economics, Budapest 1111, Hungary
| | - Zsombor Kristóf Nagy
- Organic Chemistry and Technology Department, Budapest University of Technology and Economics, Budapest 1111, Hungary.
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24
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Gao Y, Teoh TW, Wang Q, Williams GR. Electrospun organic–inorganic nanohybrids as sustained release drug delivery systems. J Mater Chem B 2017; 5:9165-9174. [DOI: 10.1039/c7tb01825h] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Novel organic–inorganic nanohybrids have been prepared, and are found to provide long-term extended drug release.
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Affiliation(s)
- Yanshan Gao
- College of Environmental Science and Engineering
- Beijing Forestry University
- Beijing 100083
- P. R. China
- UCL School of Pharmacy
| | - Tian Wei Teoh
- UCL School of Pharmacy
- University College London
- London WC1N 1AX
- UK
| | - Qiang Wang
- College of Environmental Science and Engineering
- Beijing Forestry University
- Beijing 100083
- P. R. China
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25
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Meng J, Agrahari V, Ezoulin MJ, Zhang C, Purohit SS, Molteni A, Dim D, Oyler NA, Youan BBC. Tenofovir Containing Thiolated Chitosan Core/Shell Nanofibers: In Vitro and in Vivo Evaluations. Mol Pharm 2016; 13:4129-4140. [PMID: 27700124 DOI: 10.1021/acs.molpharmaceut.6b00739] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
It is hypothesized that thiolated chitosan (TCS) core/shell nanofibers (NFs) can enhance the drug loading of tenofovir, a model low molecular weight and highly water-soluble drug molecule, and improve its mucoadhesivity and in vivo safety. To test this hypothesis, poly(ethylene oxide) (PEO) core with TCS and polylactic acid (PLA) shell NFs are fabricated by a coaxial electrospinning technique. The morphology, drug loading, drug release profiles, cytotoxicity and mucoadhesion of the NFs are analyzed using scanning and transmission electron microscopies, liquid chromatography, cytotoxicity assays on VK2/E6E7 and End1/E6E7 cell lines and Lactobacilli crispatus, fluorescence imaging and periodic acid colorimetric method, respectively. In vivo safety studies are performed in C57BL/6 mice followed by H&E and immunohistochemical (CD45) staining analysis of genital tract. The mean diameters of PEO, PEO/TCS, and PEO/TCS-PLA NFs are 118.56, 9.95, and 99.53 nm, respectively. The NFs exhibit smooth surface. The drug loading (13%-25%, w/w) increased by 10-fold compared to a nanoparticle formulation due to the application of the electrospinning technique. The NFs are noncytotoxic at the concentration of 1 mg/mL. The PEO/TCS-PLA core/shell NFs mostly exhibit a release kinetic following Weibull model (r2 = 0.9914), indicating the drug release from a matrix system. The core/shell NFs are 40-60-fold more bioadhesive than the pure PEO based NFs. The NFs are nontoxic and noninflammatory in vivo after daily treatment for up to 7 days. Owing to their enhanced drug loading and preliminary safety profile, the TCS core/shell NFs are promising candidates for the topical delivery of HIV/AIDS microbicides such as tenofovir.
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Affiliation(s)
- Jianing Meng
- Laboratory of Future Nanomedicines and Theoretical Chronopharmaceutics Division of Pharmaceutical Sciences, University of Missouri-Kansas City , Kansas City, Missouri 64108, United States
| | - Vivek Agrahari
- Laboratory of Future Nanomedicines and Theoretical Chronopharmaceutics Division of Pharmaceutical Sciences, University of Missouri-Kansas City , Kansas City, Missouri 64108, United States
| | - Miezan J Ezoulin
- Laboratory of Future Nanomedicines and Theoretical Chronopharmaceutics Division of Pharmaceutical Sciences, University of Missouri-Kansas City , Kansas City, Missouri 64108, United States
| | - Chi Zhang
- Department of Chemistry, University of Missouri-Kansas City , Kansas City, Missouri 64110, United States
| | - Sudhaunshu S Purohit
- Department of Chemistry, University of Missouri-Kansas City , Kansas City, Missouri 64110, United States
| | - Agostino Molteni
- School of Medicine, University of Missouri-Kansas City , Kansas City, Missouri 64108, United States
| | - Daniel Dim
- School of Medicine, University of Missouri-Kansas City , Kansas City, Missouri 64108, United States
| | - Nathan A Oyler
- Department of Chemistry, University of Missouri-Kansas City , Kansas City, Missouri 64110, United States
| | - Bi-Botti C Youan
- Laboratory of Future Nanomedicines and Theoretical Chronopharmaceutics Division of Pharmaceutical Sciences, University of Missouri-Kansas City , Kansas City, Missouri 64108, United States
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Singh A, Kim W, Kim Y, Jeong K, Kang CS, Kim Y, Koh J, Mahajan SD, Prasad PN, Kim S. Multifunctional Photonics Nanoparticles for Crossing the Blood-Brain Barrier and Effecting Optically Trackable Brain Theranostics. ADVANCED FUNCTIONAL MATERIALS 2016; 26:7057-7066. [PMID: 29081729 PMCID: PMC5658140 DOI: 10.1002/adfm.201602808] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Theranostic photonic nanoparticles (TPNs) that cross the blood-brain barrier (BBB) and efficiently deliver a therapeutic agent to treat brain diseases, simultaneously providing optical tracking of drug delivery and release, are introduced. These TPNs are constructed by physical encapsulation of visible and/or near-infrared photonic molecules, in an ultrasmall micellar structure (<15 nm). Phytochemical curcumin is employed as a therapeutic as well as visible-emitting photonic component. In vitro BBB model studies and animal imaging, as well as ex vivo examination, reveal that these TPNs are capable of transmigration across the BBB and subsequent accumulation near the orthotopic xenograft of glioblastoma multiforme (GBM) that is the most common and aggressive brain tumor whose vasculature retains permeability-resistant properties. The intracranial delivery and release of curcumin can be visualized by imaging fluorescence produced by energy transfer from curcumin as the donor to the near-infrared emitting dye, coloaded in TPN, where curcumin induced apoptosis of glioma cells. At an extremely low dose of TPN, a significant therapeutic outcome against GBM is demonstrated noninvasively by bioluminescence monitoring of time-lapse proliferation of luciferase-expressing U-87 MG human GBM in the brain. This approach of TPN can be generally applied to a broad range of brain diseases.
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Affiliation(s)
- Ajay Singh
- Center for Theragnosis and Center for Neuro-Medicine, Korea Institute of Science and Technology (KIST), Seoul 136-791, South Korea. Institute for Lasers Photonics and Biophotonics, Department of Chemistry State University of New York, Buffalo, NY 14260, USA
| | - Woong Kim
- Center for Theragnosis and Center for Neuro-Medicine, Korea Institute of Science and Technology (KIST), Seoul 136-791, South Korea
| | - Youngsun Kim
- Center for Theragnosis and Center for Neuro-Medicine, Korea Institute of Science and Technology (KIST), Seoul 136-791, South Korea
| | - Keunsoo Jeong
- Center for Theragnosis and Center for Neuro-Medicine, Korea Institute of Science and Technology (KIST), Seoul 136-791, South Korea
| | - Chi Soo Kang
- Center for Theragnosis and Center for Neuro-Medicine, Korea Institute of Science and Technology (KIST), Seoul 136-791, South Korea
| | - YoungSoo Kim
- Center for Theragnosis and Center for Neuro-Medicine, Korea Institute of Science and Technology (KIST), Seoul 136-791, South Korea
| | - Joonseok Koh
- Department of Organic and Nano System Engineering Konkuk University Seoul 143-701, South Korea
| | - Supriya D Mahajan
- Department of Medicine Division of Allergy, Immunology, and Rheumatology State University of New York Clinical Translational Research Center Buffalo, NY 14203, USA
| | - Paras N Prasad
- Institute for Lasers Photonics and Biophotonics Department of Chemistry State University of New York Buffalo, NY 14260, USA
| | - Sehoon Kim
- Center for Theragnosis and Center for Neuro-Medicine, Korea Institute of Science and Technology (KIST), Seoul 136-791, South Korea
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