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Barnum L, Quint J, Derakhshandeh H, Samandari M, Aghabaglou F, Farzin A, Abbasi L, Bencherif S, Memic A, Mostafalu P, Tamayol A. 3D-Printed Hydrogel-Filled Microneedle Arrays. Adv Healthc Mater 2021; 10:e2001922. [PMID: 34050600 DOI: 10.1002/adhm.202001922] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 04/09/2021] [Indexed: 01/15/2023]
Abstract
Microneedle arrays (MNAs) have been used for decades to deliver drugs transdermally and avoid the obstacles of other delivery routes. Hydrogels are another popular method for delivering therapeutics because they provide tunable, controlled release of their encapsulated payload. However, hydrogels are not strong or stiff, and cannot be formed into constructs that penetrate the skin. Accordingly, it has so far been impossible to combine the transdermal delivery route provided by MNAs with the therapeutic encapsulation potential of hydrogels. To address this challenge, a low cost and simple, but robust, strategy employing MNAs is developed. These MNAs are formed from a rigid outer layer, 3D printed onto a conformal backing, and filled with drug-eluting hydrogels. Microneedles of different lengths are fabricated on a single patch, facilitating the delivery of various agents to different tissue depths. In addition to spatial distribution, temporal release kinetics can be controlled by changing the hydrogel composition or the needles' geometry. As a proof-of-concept, MNAs are used for the delivery of vascular endothelial growth factor (VEGF). Application of the rigid, resin-based outer layer allows the use of hydrogels regardless of their mechanical properties and makes these multicomponent MNAs suitable for a range of drug delivery applications.
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Affiliation(s)
- Lindsay Barnum
- Department of Mechanical and Materials Engineering University of Nebraska Lincoln NE 68588 USA
- Department of Biomedical Engineering University of Connecticut Health Center Farmington CT 06030 USA
| | - Jacob Quint
- Department of Mechanical and Materials Engineering University of Nebraska Lincoln NE 68588 USA
- Department of Biomedical Engineering University of Connecticut Health Center Farmington CT 06030 USA
| | - Hossein Derakhshandeh
- Department of Mechanical and Materials Engineering University of Nebraska Lincoln NE 68588 USA
| | - Mohamadmahdi Samandari
- Department of Mechanical and Materials Engineering University of Nebraska Lincoln NE 68588 USA
- Department of Biomedical Engineering University of Connecticut Health Center Farmington CT 06030 USA
| | - Fariba Aghabaglou
- Department of Mechanical and Materials Engineering University of Nebraska Lincoln NE 68588 USA
| | - Ali Farzin
- Department of Medicine Brigham and Women's Hospital Harvard Medical School Boston MA 02139 USA
| | - Laleh Abbasi
- Department of Mechanical and Materials Engineering University of Nebraska Lincoln NE 68588 USA
| | - Sidi Bencherif
- Department of Chemical Engineering Department of Bioengineering Northeastern University Boston MA 02115 USA
- John A. Paulson School of Engineering and Applied Sciences Harvard University Cambridge MA 02128 USA
| | - Adnan Memic
- Department of Mechanical and Materials Engineering University of Nebraska Lincoln NE 68588 USA
- Center of Nanotechnology King Abdulaziz University Jeddah 21589 Saudi Arabia
| | - Pooria Mostafalu
- Department of Medicine Brigham and Women's Hospital Harvard Medical School Boston MA 02139 USA
| | - Ali Tamayol
- Department of Mechanical and Materials Engineering University of Nebraska Lincoln NE 68588 USA
- Department of Biomedical Engineering University of Connecticut Health Center Farmington CT 06030 USA
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Samandari M, Aghabaglou F, Nuutila K, Derakhshandeh H, Zhang Y, Endo Y, Harris S, Barnum L, Kreikemeier‐Bower C, Arab‐Tehrany E, Peppas NA, Sinha I, Tamayol A. Intradermal Drug Delivery: Miniaturized Needle Array‐Mediated Drug Delivery Accelerates Wound Healing (Adv. Healthcare Mater. 8/2021). Adv Healthc Mater 2021. [DOI: 10.1002/adhm.202170040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Samandari M, Aghabaglou F, Nuutila K, Derakhshandeh H, Zhang Y, Endo Y, Harris S, Barnum L, Kreikemeier‐Bower C, Arab‐Tehrany E, Peppas NA, Sinha I, Tamayol A. Miniaturized Needle Array-Mediated Drug Delivery Accelerates Wound Healing. Adv Healthc Mater 2021; 10:e2001800. [PMID: 33586339 DOI: 10.1002/adhm.202001800] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 01/05/2021] [Indexed: 12/26/2022]
Abstract
A major impediment preventing normal wound healing is insufficient vascularization, which causes hypoxia, poor metabolic support, and dysregulated physiological responses to injury. To combat this, the delivery of angiogenic factors, such as vascular endothelial growth factor (VEGF), has been shown to provide modest improvement in wound healing. Here, the importance of specialty delivery systems is explored in controlling wound bed drug distribution and consequently improving healing rate and quality. Two intradermal drug delivery systems, miniaturized needle arrays (MNAs) and liquid jet injectors (LJIs), are evaluated to compare effective VEGF delivery into the wound bed. The administered drug's penetration depth and distribution in tissue are significantly different between the two technologies. These systems' capability for efficient drug delivery is first confirmed in vitro and then assessed in vivo. While topical administration of VEGF shows limited effectiveness, intradermal delivery of VEGF in a diabetic murine model accelerates wound healing. To evaluate the translational feasibility of the strategy, the benefits of VEGF delivery using MNAs are assessed in a porcine model. The results demonstrate enhanced angiogenesis, reduced wound contraction, and increased regeneration. These findings show the importance of both therapeutics and delivery strategy in wound healing.
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Affiliation(s)
| | - Fariba Aghabaglou
- Department of Biomedical Engineering and Neurosurgery Johns Hopkins University Baltimore MD USA
| | - Kristo Nuutila
- Division of Plastic Surgery Brigham and Women's Hospital Harvard Medical School Boston MA 02115 USA
| | - Hossein Derakhshandeh
- Department of Mechanical and Materials Engineering University of Nebraska Lincoln NE 68508 USA
| | - Yuteng Zhang
- Division of Plastic Surgery Brigham and Women's Hospital Harvard Medical School Boston MA 02115 USA
| | - Yori Endo
- Division of Plastic Surgery Brigham and Women's Hospital Harvard Medical School Boston MA 02115 USA
| | - Seth Harris
- Veterinary Diagnostic Center School of Veterinary Medicine and Biomedical Sciences University of Nebraska‐Lincoln Lincoln NE 68583 USA
| | - Lindsay Barnum
- Department of Biomedical Engineering University of Connecticut Farmington CT 06030 USA
| | | | | | - Nicholas A. Peppas
- Department of Biomedical Engineering and Chemical Engineering Department of Pediatrics and Surgery Dell Medical School Department of Molecular Pharmaceutics and Drug Delivery The University of Texas at Austin Austin TX 78712 USA
| | - Indranil Sinha
- Division of Plastic Surgery Brigham and Women's Hospital Harvard Medical School Boston MA 02115 USA
| | - Ali Tamayol
- Department of Biomedical Engineering University of Connecticut Farmington CT 06030 USA
- Department of Mechanical and Materials Engineering University of Nebraska Lincoln NE 68508 USA
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Derakhshandeh H, Aghabaglou F, McCarthy A, Mostafavi A, Wiseman C, Bonick Z, Ghanavati I, Harris S, Kreikemeier-Bower C, Basri SMM, Rosenbohm J, Yang R, Mostafalu P, Orgill D, Tamayol A. A Wirelessly Controlled Smart Bandage with 3D-Printed Miniaturized Needle Arrays. Adv Funct Mater 2020; 30:1905544. [PMID: 34354556 PMCID: PMC8336080 DOI: 10.1002/adfm.201905544] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Indexed: 05/18/2023]
Abstract
Chronic wounds are one of the most devastating complications of diabetes and are the leading cause of nontraumatic limb amputation. Despite the progress in identifying factors and promising in vitro results for the treatment of chronic wounds, their clinical translation is limited. Given the range of disruptive processes necessary for wound healing, different pharmacological agents are needed at different stages of tissue regeneration. This requires the development of wearable devices that can deliver agents to critical layers of the wound bed in a minimally invasive fashion. Here, for the first time, a programmable platform is engineered that is capable of actively delivering a variety of drugs with independent temporal profiles through miniaturized needles into deeper layers of the wound bed. The delivery of vascular endothelial growth factor (VEGF) through the miniaturized needle arrays demonstrates that, in addition to the selection of suitable therapeutics, the delivery method and their spatial distribution within the wound bed is equally important. Administration of VEGF to chronic dermal wounds of diabetic mice using the programmable platform shows a significant increase in wound closure, re-epithelialization, angiogenesis, and hair growth when compared to standard topical delivery of therapeutics.
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Affiliation(s)
- Hossein Derakhshandeh
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA
| | - Fariba Aghabaglou
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA
| | - Alec McCarthy
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA
| | - Azadeh Mostafavi
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA
| | - Chris Wiseman
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA
| | - Zack Bonick
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA
| | - Ian Ghanavati
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA
| | - Seth Harris
- Veterinary Diagnostic Center, School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln Lincoln, NE 68583, USA
| | | | - Seyed Masoud Moosavi Basri
- Department of Biomedical Engineering, American University of Sharjah, Sharjah 26666, United Arab Emirates
| | - Jordan Rosenbohm
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA
| | - Ruiguo Yang
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA
| | - Pooria Mostafalu
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA
| | - Dennis Orgill
- Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Ali Tamayol
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA
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Derakhshandeh H, Kashaf SS, Aghabaglou F, Ghanavati IO, Tamayol A. Smart Bandages: The Future of Wound Care. Trends Biotechnol 2018; 36:1259-1274. [PMID: 30197225 DOI: 10.1016/j.tibtech.2018.07.007] [Citation(s) in RCA: 118] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 07/04/2018] [Accepted: 07/10/2018] [Indexed: 01/16/2023]
Abstract
Chronic non-healing wounds are major healthcare challenges that affect a noticeable number of people; they exert a severe financial burden and are the leading cause of limb amputation. Although chronic wounds are locked in a persisting inflamed state, they are dynamic and proper therapy requires identifying abnormalities, administering proper drugs and growth factors, and modulating the conditions of the environment. In this review article, we discuss technologies that have been developed to actively monitor the wound environment. We also highlight drug delivery tools that have been integrated with bandages to facilitate precise temporal and spatial control over drug release and review automated or semi-automated systems that can respond to the wound environment.
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Affiliation(s)
- Hossein Derakhshandeh
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68508, USA
| | - Sara Saheb Kashaf
- The University of Chicago Medical Scientist Training Program, Pritzker School of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Fariba Aghabaglou
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68508, USA
| | - Ian O Ghanavati
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68508, USA
| | - Ali Tamayol
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68508, USA; Current address: 900 N16th Street, Room NH W332, Lincoln, NE 68508, USA.
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Saghazadeh S, Rinoldi C, Schot M, Kashaf SS, Sharifi F, Jalilian E, Nuutila K, Giatsidis G, Mostafalu P, Derakhshandeh H, Yue K, Swieszkowski W, Memic A, Tamayol A, Khademhosseini A. Drug delivery systems and materials for wound healing applications. Adv Drug Deliv Rev 2018; 127:138-166. [PMID: 29626550 PMCID: PMC6003879 DOI: 10.1016/j.addr.2018.04.008] [Citation(s) in RCA: 369] [Impact Index Per Article: 61.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 04/01/2018] [Accepted: 04/03/2018] [Indexed: 01/22/2023]
Abstract
Chronic, non-healing wounds place a significant burden on patients and healthcare systems, resulting in impaired mobility, limb amputation, or even death. Chronic wounds result from a disruption in the highly orchestrated cascade of events involved in wound closure. Significant advances in our understanding of the pathophysiology of chronic wounds have resulted in the development of drugs designed to target different aspects of the impaired processes. However, the hostility of the wound environment rich in degradative enzymes and its elevated pH, combined with differences in the time scales of different physiological processes involved in tissue regeneration require the use of effective drug delivery systems. In this review, we will first discuss the pathophysiology of chronic wounds and then the materials used for engineering drug delivery systems. Different passive and active drug delivery systems used in wound care will be reviewed. In addition, the architecture of the delivery platform and its ability to modulate drug delivery are discussed. Emerging technologies and the opportunities for engineering more effective wound care devices are also highlighted.
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Affiliation(s)
- Saghi Saghazadeh
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School. Boston, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology. Cambridge, MA 02139, USA
| | - Chiara Rinoldi
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School. Boston, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology. Cambridge, MA 02139, USA
- Materials Design Division, Faculty of Materials Science and Engineering, Warsaw University of Technology. Warsaw 02-507, Poland
| | - Maik Schot
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School. Boston, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology. Cambridge, MA 02139, USA
- MIRA Institute of Biomedical Technology and Technical Medicine, Department of Developmental BioEngineering, University of Twente, Enschede, The Netherlands
| | - Sara Saheb Kashaf
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School. Boston, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology. Cambridge, MA 02139, USA
- The University of Chicago Medical Scientist Training Program, Pritzker School of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Fatemeh Sharifi
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School. Boston, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology. Cambridge, MA 02139, USA
- School of Mechanical Engineering, Sharif University of Technology, Tehran, Iran
| | - Elmira Jalilian
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School. Boston, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology. Cambridge, MA 02139, USA
| | - Kristo Nuutila
- Division of Plastic Surgery, Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Giorgio Giatsidis
- Division of Plastic Surgery, Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Pooria Mostafalu
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School. Boston, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology. Cambridge, MA 02139, USA
| | - Hossein Derakhshandeh
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE, 68508, USA
| | - Kan Yue
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School. Boston, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology. Cambridge, MA 02139, USA
| | - Wojciech Swieszkowski
- Materials Design Division, Faculty of Materials Science and Engineering, Warsaw University of Technology. Warsaw 02-507, Poland
| | - Adnan Memic
- Center of Nanotechnology, Department of Physics, King Abdulaziz University, Jeddah 21569, Saudi Arabia
| | - Ali Tamayol
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School. Boston, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology. Cambridge, MA 02139, USA
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE, 68508, USA
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School. Boston, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology. Cambridge, MA 02139, USA
- Center of Nanotechnology, Department of Physics, King Abdulaziz University, Jeddah 21569, Saudi Arabia
- Department of Chemical and Biomolecular Engineering, Department of Bioengineering, Department of Radiology, California NanoSystems Institute (CNSI), University of California, Los Angeles, CA, 90095, USA
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Danesh-Sani SA, Sarafraz A, Chamani M, Derakhshandeh H. Paranasal sinuses malignancies: A 12-year review of clinical characteristics. Med Oral Patol Oral Cir Bucal 2016; 21:e626-30. [PMID: 27475693 PMCID: PMC5005102 DOI: 10.4317/medoral.21170] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 03/25/2016] [Indexed: 12/20/2022] Open
Abstract
Background Inadequate epidemiologic investigations of the paranasal sinuses malignancies prompted this retrospective study with special emphasis on a major group of 111 tumors. Material and Methods Clinical records of 111 patients with histologically confirmed malignant tumors of the paranasal sinuses were investigated retrospectively from April 2000 to January 2012. Collection of data included demographic information, clinical manifestations, treatment plans, and histopathology of the tumor. Results There were 69 (62.16%) male and 42 (37.83%) female patients (male-to-female ratio of 1.6:1), with a median age of 49±12.2 years (range 21 to 88 years). A high level of occurrence was noticed in the fifth (26.3%) decade of life. The most frequent histological types were squamous cell carcinoma (43.5%) and adenoid cystic carcinoma (19%). Among clinical manifestations, nasal obstruction was the most frequent followed by diplopia, and facial swelling. Fifty three patients (47.74%) were treated with combined approach of surgery and radiation therapy. Conclusions Paranasal sinuses malignancies are rare conditions with nonspecific symptoms which make early diagnosis of the lesions more challenging. The optimal therapeutic protocol for patients suffering from these tumors is still a somewhat controversial entity and requires further studies. Key words:Paranasal sinuses, malignancy, surgery,radiotherapy.
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Affiliation(s)
- S-A Danesh-Sani
- Avicenna Research Institute, Dental Research Center, Oral and maxillofacial Surgery Division, Mashhad University of Medical Sciences, Mashhad, Iran,
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