51
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Prospects and Challenges of Electrospun Cell and Drug Delivery Vehicles to Correct Urethral Stricture. Int J Mol Sci 2022; 23:ijms231810519. [PMID: 36142432 PMCID: PMC9502833 DOI: 10.3390/ijms231810519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 08/30/2022] [Accepted: 09/01/2022] [Indexed: 11/17/2022] Open
Abstract
Current therapeutic modalities to treat urethral strictures are associated with several challenges and shortcomings. Therefore, significant strides have been made to develop strategies with minimal side effects and the highest therapeutic potential. In this framework, electrospun scaffolds incorporated with various cells or bioactive agents have provided promising vistas to repair urethral defects. Due to the biomimetic nature of these constructs, they can efficiently mimic the native cells’ niches and provide essential microenvironmental cues for the safe transplantation of multiple cell types. Furthermore, these scaffolds are versatile platforms for delivering various drug molecules, growth factors, and nucleic acids. This review discusses the recent progress, applications, and challenges of electrospun scaffolds to deliver cells or bioactive agents during the urethral defect repair process. First, the current status of electrospinning in urethral tissue engineering is presented. Then, the principles of electrospinning in drug and cell delivery applications are reviewed. Finally, the recent preclinical studies are summarized and the current challenges are discussed.
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52
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Development and characterization of PCL membranes incorporated with Zn-doped bioactive glass produced by electrospinning for osteogenesis evaluation. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03208-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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53
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Fan Q, Hamidi S. Moringa oleifera-Loaded Nanocomposite Scaffolds Augment Bone Injury Healing in a Rat Model of Critical Sized Bone Defect: A Potential Treatment Strategy for Nursing Care in Fracture Patients. J Biomed Nanotechnol 2022. [DOI: 10.1166/jbn.2022.3419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Nursing and medical care for facture patients is challenged by several issues such as unavailability of a suitable bone graft, challenges associated with autologous bone graphing, and rejection of the bone graft. In the current study, Moringa oleifera extract was loaded into
chitosan nanoparticles and the resulting delivery system was added into a collagen solution and lyophilized to produce a bioactive bone graft. Various In vitro experiments were performed to characterize the nanocomposite scaffolds and their healing function was evaluated in a rat model
of calvarial defect. In vitro studies showed that the scaffolds protected MG-63 cells against oxidative stress and had a porous microstructure. Histopathological studies showed that the scaffolds loaded with Moringa oleifera extract augmented bone injury healing to a higher extent
than other groups. Furthermore, gene expression studies showed that the rats treated with Moringa oleifera extract-loaded scaffolds had significantly higher tissue expression levels of osteopontin, Osteonectin, collagen type 1, collagen type 2, and VEGFa genes.
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Affiliation(s)
- Qiuhua Fan
- Clinical Medical Laboratory Center, Shanxi Children’s Hospital (Shanxi Maternal and Child Health Hospital), Taiyuan, 030000, China
| | - Sasan Hamidi
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, 12036598, Tehran, Iran
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54
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Laubach M, Kobbe P, Hutmacher DW. Biodegradable interbody cages for lumbar spine fusion: Current concepts and future directions. Biomaterials 2022; 288:121699. [PMID: 35995620 DOI: 10.1016/j.biomaterials.2022.121699] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 07/14/2022] [Accepted: 07/22/2022] [Indexed: 11/16/2022]
Abstract
Lumbar fusion often remains the last treatment option for various acute and chronic spinal conditions, including infectious and degenerative diseases. Placement of a cage in the intervertebral space has become a routine clinical treatment for spinal fusion surgery to provide sufficient biomechanical stability, which is required to achieve bony ingrowth of the implant. Routinely used cages for clinical application are made of titanium (Ti) or polyetheretherketone (PEEK). Ti has been used since the 1980s; however, its shortcomings, such as impaired radiographical opacity and higher elastic modulus compared to bone, have led to the development of PEEK cages, which are associated with reduced stress shielding as well as no radiographical artefacts. Since PEEK is bioinert, its osteointegration capacity is limited, which in turn enhances fibrotic tissue formation and peri-implant infections. To address shortcomings of both of these biomaterials, interdisciplinary teams have developed biodegradable cages. Rooted in promising preclinical large animal studies, a hollow cylindrical cage (Hydrosorb™) made of 70:30 poly-l-lactide-co-d, l-lactide acid (PLDLLA) was clinically studied. However, reduced bony integration and unfavourable long-term clinical outcomes prohibited its routine clinical application. More recently, scaffold-guided bone regeneration (SGBR) with application of highly porous biodegradable constructs is emerging. Advancements in additive manufacturing technology now allow the cage designs that match requirements, such as stiffness of surrounding tissues, while providing long-term biomechanical stability. A favourable clinical outcome has been observed in the treatment of various bone defects, particularly for 3D-printed composite scaffolds made of medical-grade polycaprolactone (mPCL) in combination with a ceramic filler material. Therefore, advanced cage design made of mPCL and ceramic may also carry initial high spinal forces up to the time of bony fusion and subsequently resorb without clinical side effects. Furthermore, surface modification of implants is an effective approach to simultaneously reduce microbial infection and improve tissue integration. We present a design concept for a scaffold surface which result in osteoconductive and antimicrobial properties that have the potential to achieve higher rates of fusion and less clinical complications. In this review, we explore the preclinical and clinical studies which used bioresorbable cages. Furthermore, we critically discuss the need for a cutting-edge research program that includes comprehensive preclinical in vitro and in vivo studies to enable successful translation from bench to bedside. We develop such a conceptual framework by examining the state-of-the-art literature and posing the questions that will guide this field in the coming years.
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Affiliation(s)
- Markus Laubach
- Australian Research Council (ARC) Training Centre for Cell and Tissue Engineering Technologies, Queensland University of Technology (QUT), Brisbane, QLD, 4000 Australia; Australian Research Council (ARC) Training Centre for Multiscale 3D Imaging, Modelling, and Manufacturing (M3D Innovation), Queensland University of Technology, Brisbane, QLD 4000, Australia; Centre for Biomedical Technologies, School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, QLD 4059, Australia; Department of Orthopaedics, Trauma and Reconstructive Surgery, RWTH Aachen University Hospital, Pauwelsstraße 30, 52074 Aachen, Germany.
| | - Philipp Kobbe
- Department of Orthopaedics, Trauma and Reconstructive Surgery, RWTH Aachen University Hospital, Pauwelsstraße 30, 52074 Aachen, Germany
| | - Dietmar W Hutmacher
- Australian Research Council (ARC) Training Centre for Cell and Tissue Engineering Technologies, Queensland University of Technology (QUT), Brisbane, QLD, 4000 Australia; Australian Research Council (ARC) Training Centre for Multiscale 3D Imaging, Modelling, and Manufacturing (M3D Innovation), Queensland University of Technology, Brisbane, QLD 4000, Australia; Centre for Biomedical Technologies, School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, QLD 4059, Australia; Max Planck Queensland Center for the Materials Science of Extracellular Matrices, Queensland University of Technology, Brisbane, QLD 4000, Australia.
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55
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Du F, Rupp H, Jariyavidyanont K, Janke A, Petzold A, Binder W, Androsch R. 3D-printing of the polymer/insect-repellent system poly(l-lactic acid)/ethyl butylacetylaminopropionate (PLLA/IR3535). Int J Pharm 2022; 624:122023. [PMID: 35843363 DOI: 10.1016/j.ijpharm.2022.122023] [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: 06/09/2022] [Revised: 07/11/2022] [Accepted: 07/12/2022] [Indexed: 11/24/2022]
Abstract
The polymer/solvent system poly(l-lactic acid)/ethyl butylacetylaminopropionate (PLLA/IR3535) is regarded as an insect-repellent-delivery system, serving, e.g., for fighting mosquito-borne tropical diseases. In such systems the solid polymer hosts the liquid repellent, with the latter slowly released to the environment, expelling mosquitoes. As a new approach, exceeding prior work about application of different technologies to obtain such devices, in this work, samples of the polymer/repellent system PLLA/IR3535 were prepared by 3D-printing. The experiments showed that it is possible to print 3D-parts containing up to 25 m% repellent, with an only minor loss of repellent during the printing process. For samples containing low amount of repellent, crystallization of PLLA was suppressed due to the rather fast cooling step and the low bed temperature of around 25 °C, being lower than the glass transition temperature of the homogeneous polymer/repellent strands. At higher repellent concentration, due to the lowering of the glass transition temperature to near or even below ambient temperature, the crystallinity slowly increased during storage after printing. For all samples, regardless of the initial repellent concentration, the repellent-release rate increases with temperature, and at ambient temperature the release-time constant is in the order of 10 days. The study successfully proved the applicability of the technology of extrusion-based 3D-printing for the preparation of polymer parts with a specific shape/design containing mosquito-repellent at a concentration which raises the expectation to be used as a repellent delivery-device.
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Affiliation(s)
- Fanfan Du
- Interdisciplinary Center for Transfer-oriented Research in Natural Sciences, Martin Luther University Halle-Wittenberg, 06099 Halle/Saale, Germany
| | - Harald Rupp
- Institute of Chemistry, Martin Luther University Halle-Wittenberg, 06099 Halle/Saale, Germany
| | - Katalee Jariyavidyanont
- Interdisciplinary Center for Transfer-oriented Research in Natural Sciences, Martin Luther University Halle-Wittenberg, 06099 Halle/Saale, Germany
| | - Andreas Janke
- Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Str. 6, 01069 Dresden, Germany
| | - Albrecht Petzold
- Institute of Physics, Martin Luther University Halle-Wittenberg, 06099 Halle/Saale, Germany
| | - Wolfgang Binder
- Institute of Chemistry, Martin Luther University Halle-Wittenberg, 06099 Halle/Saale, Germany.
| | - René Androsch
- Interdisciplinary Center for Transfer-oriented Research in Natural Sciences, Martin Luther University Halle-Wittenberg, 06099 Halle/Saale, Germany.
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56
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Mohamadinooripoor R, Kashanian S, Moradipour P, Sajadimajd S, Arkan E, Tajehmiri A, Rashidi K. Novel elastomeric fibrous composites of poly-ε-caprolactone/propolis and their evaluation for biomedical applications. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03165-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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57
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Gil CJ, Li L, Hwang B, Cadena M, Theus AS, Finamore TA, Bauser-Heaton H, Mahmoudi M, Roeder RK, Serpooshan V. Tissue engineered drug delivery vehicles: Methods to monitor and regulate the release behavior. J Control Release 2022; 349:143-155. [PMID: 35508223 DOI: 10.1016/j.jconrel.2022.04.044] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/24/2022] [Accepted: 04/27/2022] [Indexed: 12/15/2022]
Abstract
Tissue engineering is a rapidly evolving, multidisciplinary field that aims at generating or regenerating 3D functional tissues for in vitro disease modeling and drug screening applications or for in vivo therapies. A variety of advanced biological and engineering methods are increasingly being used to further enhance and customize the functionality of tissue engineered scaffolds. To this end, tunable drug delivery and release mechanisms are incorporated into tissue engineering modalities to promote different therapeutic processes, thus, addressing challenges faced in the clinical applications. In this review, we elaborate the mechanisms and recent developments in different drug delivery vehicles, including the quantum dots, nano/micro particles, and molecular agents. Different loading strategies to incorporate the therapeutic reagents into the scaffolding structures are explored. Further, we discuss the main mechanisms to tune and monitor/quantify the release kinetics of embedded drugs from engineered scaffolds. We also survey the current trend of drug delivery using stimuli driven biopolymer scaffolds to enable precise spatiotemporal control of the release behavior. Recent advancements, challenges facing current scaffold-based drug delivery approaches, and areas of future research are discussed.
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Affiliation(s)
- Carmen J Gil
- Department of Biomedical Engineering, Emory University School of Medicine and Georgia Institute of Technology, Atlanta, GA 30322, USA
| | - Lan Li
- Bioengineering Graduate Program, Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Boeun Hwang
- Department of Biomedical Engineering, Emory University School of Medicine and Georgia Institute of Technology, Atlanta, GA 30322, USA
| | - Melissa Cadena
- Department of Biomedical Engineering, Emory University School of Medicine and Georgia Institute of Technology, Atlanta, GA 30322, USA
| | - Andrea S Theus
- Department of Biomedical Engineering, Emory University School of Medicine and Georgia Institute of Technology, Atlanta, GA 30322, USA
| | - Tyler A Finamore
- Bioengineering Graduate Program, Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Holly Bauser-Heaton
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, USA; Children's Healthcare of Atlanta, Atlanta, GA 30322, USA; Sibley Heart Center at Children's Healthcare of Atlanta, Atlanta, GA 30322, USA
| | - Morteza Mahmoudi
- Department of Radiology and Precision Health Program, Michigan State University, East Lansing, MI 48864, USA
| | - Ryan K Roeder
- Bioengineering Graduate Program, Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Vahid Serpooshan
- Department of Biomedical Engineering, Emory University School of Medicine and Georgia Institute of Technology, Atlanta, GA 30322, USA; Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, USA; Children's Healthcare of Atlanta, Atlanta, GA 30322, USA.
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58
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Zhang X, He J, Qiao L, Wang Z, Zheng Q, Xiong C, Yang H, Li K, Lu C, Li S, Chen H, Hu X. 3D
printed
PCLA
scaffold with nano‐hydroxyapatite coating doped green tea
EGCG
promotes bone growth and inhibits multidrug‐resistant bacteria colonization. Cell Prolif 2022; 55:e13289. [PMID: 35791492 PMCID: PMC9528762 DOI: 10.1111/cpr.13289] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 05/26/2022] [Accepted: 06/01/2022] [Indexed: 02/05/2023] Open
Affiliation(s)
- Xiangchun Zhang
- Tea Research Institute, Chinese Academy of Agricultural Sciences Hangzhou China
| | - Jian He
- College of Medical, Henan University of Science and Technology Luoyang China
| | - Liang Qiao
- The First Affiliated Hospital College of Clinical Medicine of Henan University of Science and Technology Luoyang People's Republic of China
| | - Ziqi Wang
- Tea Research Institute, Chinese Academy of Agricultural Sciences Hangzhou China
| | - Qinqin Zheng
- Tea Research Institute, Chinese Academy of Agricultural Sciences Hangzhou China
| | - Chengdong Xiong
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu Sichuan China
| | - Hui Yang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and West China Hospital of Stomatology Sichuan University Chengdu China
| | - Kainan Li
- Clinical Medical College and Affiliated Hospital of Chengdu University, Chengdu University Chengdu China
| | - Chengyin Lu
- Tea Research Institute, Chinese Academy of Agricultural Sciences Hangzhou China
| | - Sanqiang Li
- College of Medical, Henan University of Science and Technology Luoyang China
| | - Hongping Chen
- Tea Research Institute, Chinese Academy of Agricultural Sciences Hangzhou China
| | - Xulin Hu
- Clinical Medical College and Affiliated Hospital of Chengdu University, Chengdu University Chengdu China
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59
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Nishida K, Anada T, Tanaka M. Roles of interfacial water states on advanced biomedical material design. Adv Drug Deliv Rev 2022; 186:114310. [PMID: 35487283 DOI: 10.1016/j.addr.2022.114310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 04/12/2022] [Accepted: 04/21/2022] [Indexed: 12/15/2022]
Abstract
When biomedical materials come into contact with body fluids, the first reaction that occurs on the material surface is hydration; proteins are then adsorbed and denatured on the hydrated material surface. The amount and degree of denaturation of adsorbed proteins affect subsequent cell behavior, including cell adhesion, migration, proliferation, and differentiation. Biomolecules are important for understanding the interactions and biological reactions of biomedical materials to elucidate the role of hydration in biomedical materials and their interaction partners. Analysis of the water states of hydrated materials is complicated and remains controversial; however, knowledge about interfacial water is useful for the design and development of advanced biomaterials. Herein, we summarize recent findings on the hydration of synthetic polymers, supramolecular materials, inorganic materials, proteins, and lipid membranes. Furthermore, we present recent advances in our understanding of the classification of interfacial water and advanced polymer biomaterials, based on the intermediate water concept.
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Affiliation(s)
- Kei Nishida
- Institute for Materials Chemistry and Engineering Kyushu university, 744 Motooka, Nishi-ku Fukuoka 819-0395, Japan; Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, Japan(1)
| | - Takahisa Anada
- Institute for Materials Chemistry and Engineering Kyushu university, 744 Motooka, Nishi-ku Fukuoka 819-0395, Japan
| | - Masaru Tanaka
- Institute for Materials Chemistry and Engineering Kyushu university, 744 Motooka, Nishi-ku Fukuoka 819-0395, Japan.
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60
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Clavijo-Grimaldo D, Casadiego-Torrado CA, Villalobos-Elías J, Ocampo-Páramo A, Torres-Parada M. Characterization of Electrospun Poly(ε-caprolactone) Nano/Micro Fibrous Membrane as Scaffolds in Tissue Engineering: Effects of the Type of Collector Used. MEMBRANES 2022; 12:membranes12060563. [PMID: 35736270 PMCID: PMC9228247 DOI: 10.3390/membranes12060563] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 04/24/2022] [Accepted: 04/26/2022] [Indexed: 11/30/2022]
Abstract
Electrospinning is an electrohydrodynamic technique that transforms a polymer solution into nano/microscopic diameter fibers under the influence of a high-voltage electric field. Its use in the fabrication of nano/micro fibrous membranes as scaffolds for tissue engineering has increased rapidly in recent years due to its efficiency and reproducibility. The objective of this study is to show how the use of the same polymeric solution (polycaprolactone 9% w/v in chloroform: isopropanol 50:50) and identical electrohydrodynamic deposition parameters produces fibers with different characteristics using a flat collector platform with movements in the X and Y axes vs. a conventional rotary collector. The manufactured nano/microfibers show significant differences in most of their characteristics (morphology, roughness, hydrophilicity, and mechanical properties). Regarding the diameter and porosity of the fibers, the results were similar. Given that scaffolds must be designed to guarantee adequate survival and the proliferation and migration of a certain cell type, in this study we analyze how the variations in the characteristics of the fibers obtained are essential to defining their potential application.
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Affiliation(s)
- Dianney Clavijo-Grimaldo
- School of Medicine, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (J.V.-E.); (A.O.-P.); (M.T.-P.)
- School of Medicine, Fundación Universitaria Sanitas, Bogotá 111321, Colombia;
- Correspondence:
| | | | - Juan Villalobos-Elías
- School of Medicine, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (J.V.-E.); (A.O.-P.); (M.T.-P.)
| | - Adolfo Ocampo-Páramo
- School of Medicine, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (J.V.-E.); (A.O.-P.); (M.T.-P.)
| | - Magreth Torres-Parada
- School of Medicine, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (J.V.-E.); (A.O.-P.); (M.T.-P.)
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61
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The Effect of Solvent and Pressure on Polycaprolactone Solutions for Particle and Fibre Formation. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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62
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Fan Y, Zhi Y, He M, Ahmadzadeh B, Rohani S. Cellulose acetate/Plerixafor wound dressings for transplantation of menstrual blood stem cells: Potential treatment modality for diabetic wounds. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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63
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Elsadek NE, Nagah A, Ibrahim TM, Chopra H, Ghonaim GA, Emam SE, Cavalu S, Attia MS. Electrospun Nanofibers Revisited: An Update on the Emerging Applications in Nanomedicine. MATERIALS 2022; 15:ma15051934. [PMID: 35269165 PMCID: PMC8911671 DOI: 10.3390/ma15051934] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 01/31/2022] [Accepted: 02/08/2022] [Indexed: 02/06/2023]
Abstract
Electrospinning (ES) has become a straightforward and customizable drug delivery technique for fabricating drug-loaded nanofibers (NFs) using various biodegradable and non-biodegradable polymers. One of NF's pros is to provide a controlled drug release through managing the NF structure by changing the spinneret type and nature of the used polymer. Electrospun NFs are employed as implants in several applications including, cancer therapy, microbial infections, and regenerative medicine. These implants facilitate a unique local delivery of chemotherapy because of their high loading capability, wide surface area, and cost-effectiveness. Multi-drug combination, magnetic, thermal, and gene therapies are promising strategies for improving chemotherapeutic efficiency. In addition, implants are recognized as an effective antimicrobial drug delivery system overriding drawbacks of traditional antibiotic administration routes such as their bioavailability and dosage levels. Recently, a sophisticated strategy has emerged for wound healing by producing biomimetic nanofibrous materials with clinically relevant properties and desirable loading capability with regenerative agents. Electrospun NFs have proposed unique solutions, including pelvic organ prolapse treatment, viable alternatives to surgical operations, and dental tissue regeneration. Conventional ES setups include difficult-assembled mega-sized equipment producing bulky matrices with inadequate stability and storage. Lately, there has become an increasing need for portable ES devices using completely available off-shelf materials to yield highly-efficient NFs for dressing wounds and rapid hemostasis. This review covers recent updates on electrospun NFs in nanomedicine applications. ES of biopolymers and drugs is discussed regarding their current scope and future outlook.
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Affiliation(s)
- Nehal E. Elsadek
- Department of Pharmacokinetics and Biopharmaceutics, Institute of Biomedical Sciences, Tokushima University, 1-78-1 Sho-machi, Tokushima 770-8505, Japan;
| | - Abdalrazeq Nagah
- Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (A.N.); (G.A.G.)
| | - Tarek M. Ibrahim
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (T.M.I.); (S.E.E.)
| | - Hitesh Chopra
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India;
| | - Ghada A. Ghonaim
- Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (A.N.); (G.A.G.)
| | - Sherif E. Emam
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (T.M.I.); (S.E.E.)
| | - Simona Cavalu
- Faculty of Medicine and Pharmacy, University of Oradea, P-ta 1 Decembrie 10, 410087 Oradea, Romania
- Correspondence: (S.C.); (M.S.A.)
| | - Mohamed S. Attia
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (T.M.I.); (S.E.E.)
- Correspondence: (S.C.); (M.S.A.)
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64
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Lei L, Huang W, Liu K, Liu X, Dai M, Liu Z, Zhiao Y. Trilazad mesylate-loaded electrospun cellulose acetate nanofibrous wound dressings promote diabetic wound healing by modulation of immune response and protection against oxidative damage. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2021.102863] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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65
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66
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Cao S, Deng Y, Zhang L, Aleahmad M. Chitosan nanoparticles, as biological macromolecule-based drug delivery systems to improve the healing potential of artificial neural guidance channels: A review. Int J Biol Macromol 2022; 201:569-579. [PMID: 35031319 DOI: 10.1016/j.ijbiomac.2022.01.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 12/25/2021] [Accepted: 01/05/2022] [Indexed: 12/13/2022]
Abstract
The healing potential of artificial neural guidance channels (NGCs) can be improved by various approaches such as seeding them with supporting cells, the incorporation of various cues, and modification with different fabrication methods. Recently, the therapeutic appeal towards the use of drug-delivering NGCs has increased. In this framework, neuroprotective agents are incorporated into the structure of NGCs using different techniques. Among available methods, nanoparticle-based drug carriers offer numerous advantages over other formulations such as controlled drug release, targeted delivery, high encapsulation efficacy, and high surface to volume ratio. Chitosan nanoparticles have different interesting features for drug delivery applications. These nanocarriers are biocompatible, biodegradable, non-immunogenic, stable, and possess tunable properties. In the current review, applications, challenges, and future perspectives of drug-loaded chitosan nanoparticles to augment the healing potential of NGCs will be discussed.
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Affiliation(s)
- Shuang Cao
- Department of Neuroelectrophysiology, Jinan Children's Hospital, Jinan 250022, Shandong, China
| | - Yang Deng
- School of Public Health and Management, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian 271016, Shandong, China.
| | - Le Zhang
- School of Public Health and Management, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian 271016, Shandong, China.
| | - Mehdi Aleahmad
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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67
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Padmakumar S, Varghese MM, Menon D. Differential Drug Release Kinetics from Paclitaxel-Loaded Polydioxanone Membranes and Capsules. RECENT ADVANCES IN DRUG DELIVERY AND FORMULATION 2022; 16:241-252. [PMID: 35796448 DOI: 10.2174/2667387816666220707143330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/04/2022] [Accepted: 04/22/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Drug laden implantable systems can provide drug release over several hours to years, which eventually aid in the therapy of both acute and chronic diseases. The present study focuses on a fundamental evaluation of the influence of implant properties such as morphology, architecture, porosity, surface area, and wettability in regulating the drug release kinetics from drug-loaded polymeric matrices. METHODS For this, Polydioxanone (PDS) was selected as the polymer and Paclitaxel (Ptx) as the model drug. Two different forms of the matrix implants, viz., reservoir type capsules developed by dip coating and matrix type membranes fabricated by phase inversion and electrospinning, were utilized for the study. Drug release from all the four different matrices prepared by simple techniques was evaluated in vitro in PBS and ex vivo in peritoneal wash fluid for ~4 weeks. The drug release profiles were thereafter correlated with the physicochemical parameters of the polymeric implants. RESULTS Reservoir-type capsules followed a slow and steady zero-order kinetics, while matrix-type electrospun and phase inversion membranes displayed typical biphasic kinetics. CONCLUSION It was inferred that the slow degradation rate of PDS polymer as well as the implant properties like porosity and wettability play an important role in controlling the drug release rates.
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Affiliation(s)
- Smrithi Padmakumar
- Centre for Nanosciences & Molecular Medicine, Amrita Institute of Medical Sciences & Research Centre, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Merin Mary Varghese
- Centre for Nanosciences & Molecular Medicine, Amrita Institute of Medical Sciences & Research Centre, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Deepthy Menon
- Centre for Nanosciences & Molecular Medicine, Amrita Institute of Medical Sciences & Research Centre, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
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68
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Jovanović M, Petrović M, Stojanović D, Ibrić S, Uskoković P. Preparation and characterization of 3D printed bone scaffold for ibuprofen delivery. ARHIV ZA FARMACIJU 2022. [DOI: 10.5937/arhfarm72-40262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
In this work, a blend of gelatin A (GA) and polyvinylpyrrolidone (PVP K30) was used for semi-solid 3D printing of bone scaffold for ibuprofen (IBU) delivery. The cross-linking of the obtained scaffold was performed with a 1% glutaraldehyde (GTA) solution, followed by lyophilization. The thermal and mechanical properties, as well as drug release profiles, and drug kinetics of prepared scaffolds were investigated. The cross-linked and lyophilized scaffold has shown good thermal stability, mechanical properties, and prolonged release of IBU following the Fickian diffusion process.
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69
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Deng B, McNelles SA, Da-Ré G, Marando VM, Ros S, Stöver HDH, Adronov A. Neopentyl Esters as Robust Linkers for Introducing Functionality to Bis-MPA Dendrimers. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Billy Deng
- Department of Chemistry & Chemical Biology and the Brockhouse Institute for Materials Research, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada L8S 4M1
| | - Stuart A. McNelles
- Department of Chemistry & Chemical Biology and the Brockhouse Institute for Materials Research, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada L8S 4M1
| | - Giancarlo Da-Ré
- Department of Chemistry & Chemical Biology and the Brockhouse Institute for Materials Research, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada L8S 4M1
| | - Victoria M. Marando
- Department of Chemistry & Chemical Biology and the Brockhouse Institute for Materials Research, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada L8S 4M1
| | - Samantha Ros
- Department of Chemistry & Chemical Biology and the Brockhouse Institute for Materials Research, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada L8S 4M1
| | - Harald D. H. Stöver
- Department of Chemistry & Chemical Biology and the Brockhouse Institute for Materials Research, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada L8S 4M1
| | - Alex Adronov
- Department of Chemistry & Chemical Biology and the Brockhouse Institute for Materials Research, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada L8S 4M1
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Castillo-Henríquez L, Sanabria-Espinoza P, Murillo-Castillo B, Montes de Oca-Vásquez G, Batista-Menezes D, Calvo-Guzmán B, Ramírez-Arguedas N, Vega-Baudrit J. Topical Chitosan-Based Thermo-Responsive Scaffold Provides Dexketoprofen Trometamol Controlled Release for 24 h Use. Pharmaceutics 2021; 13:2100. [PMID: 34959381 PMCID: PMC8708345 DOI: 10.3390/pharmaceutics13122100] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/13/2021] [Accepted: 11/26/2021] [Indexed: 12/20/2022] Open
Abstract
Chronic and non-healing wounds demand personalized and more effective therapies for treating complications and improving patient compliance. Concerning that, this work aims to develop a suitable chitosan-based thermo-responsive scaffold to provide 24 h controlled release of Dexketoprofen trometamol (DKT). Three formulation prototypes were developed using chitosan (F1), 2:1 chitosan: PVA (F2), and 1:1 chitosan:gelatin (F3). Compatibility tests were done by DSC, TG, and FT-IR. SEM was employed to examine the morphology of the surface and inner layers from the scaffolds. In vitro release studies were performed at 32 °C and 38 °C, and the profiles were later adjusted to different kinetic models for the best formulation. F3 showed the most controlled release of DKT at 32 °C for 24 h (77.75 ± 2.72%) and reduced the burst release in the initial 6 h (40.18 ± 1.00%). The formulation exhibited a lower critical solution temperature (LCST) at 34.96 °C, and due to this phase transition, an increased release was observed at 38 °C (88.52 ± 2.07% at 12 h). The release profile for this formulation fits with Hixson-Crowell and Korsmeyer-Peppas kinetic models at both temperatures. Therefore, the developed scaffold for DKT delivery performs adequate controlled release, thereby; it can potentially overcome adherence issues and complications in wound healing applications.
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Affiliation(s)
- Luis Castillo-Henríquez
- National Laboratory of Nanotechnology (LANOTEC), National Center for High Technology (CeNAT), San José 1174-1200, Costa Rica; (L.C.-H.); (G.M.d.O.-V.); (D.B.-M.)
- Laboratory of Physical Chemistry, Faculty of Pharmacy, University of Costa Rica, San José 11501-2060, Costa Rica; (P.S.-E.); (B.M.-C.); (N.R.-A.)
| | - Pablo Sanabria-Espinoza
- Laboratory of Physical Chemistry, Faculty of Pharmacy, University of Costa Rica, San José 11501-2060, Costa Rica; (P.S.-E.); (B.M.-C.); (N.R.-A.)
| | - Brayan Murillo-Castillo
- Laboratory of Physical Chemistry, Faculty of Pharmacy, University of Costa Rica, San José 11501-2060, Costa Rica; (P.S.-E.); (B.M.-C.); (N.R.-A.)
| | - Gabriela Montes de Oca-Vásquez
- National Laboratory of Nanotechnology (LANOTEC), National Center for High Technology (CeNAT), San José 1174-1200, Costa Rica; (L.C.-H.); (G.M.d.O.-V.); (D.B.-M.)
| | - Diego Batista-Menezes
- National Laboratory of Nanotechnology (LANOTEC), National Center for High Technology (CeNAT), San José 1174-1200, Costa Rica; (L.C.-H.); (G.M.d.O.-V.); (D.B.-M.)
| | | | - Nils Ramírez-Arguedas
- Laboratory of Physical Chemistry, Faculty of Pharmacy, University of Costa Rica, San José 11501-2060, Costa Rica; (P.S.-E.); (B.M.-C.); (N.R.-A.)
- Laboratory of Biopharmacy and Pharmacokinetics (LABIOFAR), Institute of Pharmaceutical Research (INIFAR), San José 11501-2060, Costa Rica
| | - José Vega-Baudrit
- National Laboratory of Nanotechnology (LANOTEC), National Center for High Technology (CeNAT), San José 1174-1200, Costa Rica; (L.C.-H.); (G.M.d.O.-V.); (D.B.-M.)
- Laboratory of Polymers (POLIUNA), Chemistry School, National University of Costa Rica, Heredia 86-3000, Costa Rica
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Rezaei FS, Sharifianjazi F, Esmaeilkhanian A, Salehi E. Chitosan films and scaffolds for regenerative medicine applications: A review. Carbohydr Polym 2021; 273:118631. [PMID: 34561021 DOI: 10.1016/j.carbpol.2021.118631] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/29/2021] [Accepted: 08/30/2021] [Indexed: 01/01/2023]
Abstract
Over the last years, chitosan has demonstrated unparalleled characteristics for regenerative medicine applications. Beside excellent antimicrobial and wound healing properties, this polysaccharide biopolymer offers favorable characteristics such as biocompatibility, biodegradability, and film and fiber-forming capabilities. Having plentiful active amine groups, chitosan can be also readily modified to provide auxiliary features for growing demands in regenerative medicine, which is constantly confronted with new problems, necessitating the creation of biocompatible, immunogenic and biodegradable film/scaffold composites. A new look at the chitosan composites structure/activity/application tradeoff is the primary focus of the current review, which can help researchers to detect the bottlenecks and overcome the shortcomings that arose from this intersection. In the current review, the most recent advances in chitosan films and scaffolds in terms of preparation techniques and modifying methods for improving their functional properties, in three major biomedical fields i.e., tissue engineering, wound healing, and drug delivery are surveyed and discussed.
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Affiliation(s)
- Farnoush Sadat Rezaei
- Department of Chemical Engineering, Faculty of Engineering, Amir Kabir University, Tehran, Iran
| | - Fariborz Sharifianjazi
- Department of Mining and Metallurgical Engineering, Faculty of Engineering, Amir Kabir University, Tehran, Iran
| | - Amirhossein Esmaeilkhanian
- Department of Mining and Metallurgical Engineering, Faculty of Engineering, Amir Kabir University, Tehran, Iran
| | - Ehsan Salehi
- Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak 38156-88349, Iran.
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Soleimanizadeh A, Dinter H, Schindowski K. Central Nervous System Delivery of Antibodies and Their Single-Domain Antibodies and Variable Fragment Derivatives with Focus on Intranasal Nose to Brain Administration. Antibodies (Basel) 2021; 10:antib10040047. [PMID: 34939999 PMCID: PMC8699001 DOI: 10.3390/antib10040047] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 11/10/2021] [Accepted: 11/25/2021] [Indexed: 02/06/2023] Open
Abstract
IgG antibodies are some of the most important biopharmaceutical molecules with a high market volume. In spite of the fact that clinical therapies with antibodies are broadly utilized in oncology, immunology and hematology, their delivery strategies and biodistribution need improvement, their limitations being due to their size and poor ability to penetrate into tissues. In view of their small size, there is a rising interest in derivatives, such as single-domain antibodies and single-chain variable fragments, for clinical diagnostic but also therapeutic applications. Smaller antibody formats combine several benefits for clinical applications and can be manufactured at reduced production costs compared with full-length IgGs. Moreover, such formats have a relevant potential for targeted drug delivery that directs drug cargo to a specific tissue or across the blood–brain barrier. In this review, we give an overview of the challenges for antibody drug delivery in general and focus on intranasal delivery to the central nervous system with antibody formats of different sizes.
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Affiliation(s)
- Arghavan Soleimanizadeh
- Institute of Applied Biotechnology, Biberach University of Applied Science, 88400 Biberach, Germany; (A.S.); (H.D.)
- Faculty of Medicine, University of Ulm, 89081 Ulm, Germany
| | - Heiko Dinter
- Institute of Applied Biotechnology, Biberach University of Applied Science, 88400 Biberach, Germany; (A.S.); (H.D.)
- Department of Pharmacy and Biochemistry, University of Tübingen, 72076 Tübingen, Germany
| | - Katharina Schindowski
- Institute of Applied Biotechnology, Biberach University of Applied Science, 88400 Biberach, Germany; (A.S.); (H.D.)
- Correspondence:
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73
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Elashnikov R, Ulbrich P, Vokatá B, Pavlíčková VS, Švorčík V, Lyutakov O, Rimpelová S. Physically Switchable Antimicrobial Surfaces and Coatings: General Concept and Recent Achievements. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:3083. [PMID: 34835852 PMCID: PMC8619822 DOI: 10.3390/nano11113083] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 11/09/2021] [Accepted: 11/10/2021] [Indexed: 11/24/2022]
Abstract
Bacterial environmental colonization and subsequent biofilm formation on surfaces represents a significant and alarming problem in various fields, ranging from contamination of medical devices up to safe food packaging. Therefore, the development of surfaces resistant to bacterial colonization is a challenging and actively solved task. In this field, the current promising direction is the design and creation of nanostructured smart surfaces with on-demand activated amicrobial protection. Various surface activation methods have been described recently. In this review article, we focused on the "physical" activation of nanostructured surfaces. In the first part of the review, we briefly describe the basic principles and common approaches of external stimulus application and surface activation, including the temperature-, light-, electric- or magnetic-field-based surface triggering, as well as mechanically induced surface antimicrobial protection. In the latter part, the recent achievements in the field of smart antimicrobial surfaces with physical activation are discussed, with special attention on multiresponsive or multifunctional physically activated coatings. In particular, we mainly discussed the multistimuli surface triggering, which ensures a better degree of surface properties control, as well as simultaneous utilization of several strategies for surface protection, based on a principally different mechanism of antimicrobial action. We also mentioned several recent trends, including the development of the to-detect and to-kill hybrid approach, which ensures the surface activation in a right place at a right time.
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Affiliation(s)
- Roman Elashnikov
- Department of Solid State Engineering, University of Chemistry and Technology Prague, Technická 3, Prague 6, 166 28 Prague, Czech Republic; (R.E.); (V.Š.)
| | - Pavel Ulbrich
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 3, Prague 6, 166 28 Prague, Czech Republic; (P.U.); (B.V.); (V.S.P.)
| | - Barbora Vokatá
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 3, Prague 6, 166 28 Prague, Czech Republic; (P.U.); (B.V.); (V.S.P.)
| | - Vladimíra Svobodová Pavlíčková
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 3, Prague 6, 166 28 Prague, Czech Republic; (P.U.); (B.V.); (V.S.P.)
| | - Václav Švorčík
- Department of Solid State Engineering, University of Chemistry and Technology Prague, Technická 3, Prague 6, 166 28 Prague, Czech Republic; (R.E.); (V.Š.)
| | - Oleksiy Lyutakov
- Department of Solid State Engineering, University of Chemistry and Technology Prague, Technická 3, Prague 6, 166 28 Prague, Czech Republic; (R.E.); (V.Š.)
| | - Silvie Rimpelová
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 3, Prague 6, 166 28 Prague, Czech Republic; (P.U.); (B.V.); (V.S.P.)
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74
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Gelatin Methacryloyl Hydrogels for the Localized Delivery of Cefazolin. Polymers (Basel) 2021; 13:polym13223960. [PMID: 34833259 PMCID: PMC8618379 DOI: 10.3390/polym13223960] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/08/2021] [Accepted: 11/12/2021] [Indexed: 12/13/2022] Open
Abstract
The tuneability of hydrogels renders them promising candidates for local drug delivery to prevent and treat local surgical site infection (SSI) while avoiding the systemic side-effects of intravenous antibiotic injections. Here, we present a newly developed gelatin methacryloyl (GelMA)-based hydrogel drug delivery system (GelMA-DDS) to locally deliver the broad-spectrum antibiotic cefazolin for SSI prophylaxis and treatment. Antibiotic doses from 3 µg to 90 µg were loaded in photocrosslinked GelMA hydrogel discs with 5 to 15% w/v polymer concentration and drug encapsulation efficiencies, mechanical properties, crosslinking and release kinetics, as well as bacterial growth inhibition were assessed. Our results demonstrate that all GelMA groups supported excellent drug encapsulation efficiencies of up to 99%. Mechanical properties of the GelMA-DDS were highly tuneable and unaffected by the loading of small to medium doses of cefazolin. The diffusive and the proteolytic in vitro drug delivery of all investigated cefazolin doses was characterized by a burst release, and the delivered cefazolin amount was directly proportional to the encapsulated dose. Accelerated enzymatic degradation of the GelMA-DDS followed zero-order kinetics and was dependent on both the cefazolin dose and GelMA concentration (3-13 h). Finally, we demonstrate that cefazolin delivered from GelMA induced a dose-dependent antibacterial efficacy against S. aureus, in both a broth and a diffusive assay. The cefazolin-loaded GelMA-DDS presented here provides a highly tuneable and easy-to-use local delivery system for the prophylaxis and treatment of SSI.
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75
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Togo A, Usagawa M, Kimura S, Iwata T. In Vitro Enzymatic Polymerization of α-1,6- Graft-α-1,3-glucan and Structural Analysis of Gel Formation. Biomacromolecules 2021; 22:4701-4708. [PMID: 34676760 DOI: 10.1021/acs.biomac.1c00982] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
α-1,6-Graft-α-1,3-glucan comprises a main-chain of α-1,6-glucan and side-chains of α-1,3-glucan. It was synthesized by a one-pot in vitro enzymatic polymerization of sucrose and dextran (α-1,6-glucan) of different molecular weights. In the presence of the high-molecular-weightdextran (Mw ≥ 650 000), the graft glucan formed a self-standing hydrogel without any cross-linker. It was possible to control the number of α-1,3-glucan side-chains by controlling the molecular weight and concentration of the dextran. Consequently, it was possible to control the compression strength of the obtained gels. Hydrogels of the graft glucan were formed by physically cross-linking the α-1,3-glucan side-chains. These physical gels are potentially useful biomaterials with high biocompatible, because the graft glucan is composed of glucose alone.
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Affiliation(s)
- Azusa Togo
- Science of Polymeric Materials, Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Mayumi Usagawa
- Science of Polymeric Materials, Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Satoshi Kimura
- Science of Polymeric Materials, Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.,Technology Advancement Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Tadahisa Iwata
- Science of Polymeric Materials, Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
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76
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Bentley ER, Little SR. Local delivery strategies to restore immune homeostasis in the context of inflammation. Adv Drug Deliv Rev 2021; 178:113971. [PMID: 34530013 PMCID: PMC8556365 DOI: 10.1016/j.addr.2021.113971] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 09/05/2021] [Accepted: 09/07/2021] [Indexed: 12/13/2022]
Abstract
Immune homeostasis is maintained by a precise balance between effector immune cells and regulatory immune cells. Chronic deviations from immune homeostasis, driven by a greater ratio of effector to regulatory cues, can promote the development and propagation of inflammatory diseases/conditions (i.e., autoimmune diseases, transplant rejection, etc.). Current methods to treat chronic inflammation rely upon systemic administration of non-specific small molecules, resulting in broad immunosuppression with unwanted side effects. Consequently, recent studies have developed more localized and specific immunomodulatory approaches to treat inflammation through the use of local biomaterial-based delivery systems. In particular, this review focuses on (1) local biomaterial-based delivery systems, (2) common materials used for polymeric-delivery systems and (3) emerging immunomodulatory trends used to treat inflammation with increased specificity.
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Affiliation(s)
- Elizabeth R Bentley
- Department of Bioengineering, University of Pittsburgh, 302 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA 15260, United States.
| | - Steven R Little
- Department of Bioengineering, University of Pittsburgh, 302 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA 15260, United States; Department of Chemical Engineering, University of Pittsburgh, 940 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA 15213, United States; Department of Clinical and Translational Science, University of Pittsburgh, Forbes Tower, Suite 7057, Pittsburgh, PA 15213, United States; McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, PA 15219, United States; Department of Immunology, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA 15213, United States; Department of Pharmaceutical Sciences, University of Pittsburgh, 3501 Terrace Street, Pittsburgh, PA 15213, United States; Department of Ophthalmology, University of Pittsburgh, 203 Lothrop Street, Pittsburgh, PA 15213, United States.
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77
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Patel PR, Pandey K, Killi N, Gundloori RVN. Manipulating hydrophobicity of polyester nanofiber mats with egg albumin to enhance cell interactions. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25776] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Pratikshkumar R. Patel
- Polymer Science and Engineering CSIR‐National Chemical Laboratory Pune Maharashtra India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad Uttar Pradesh India
| | - Komal Pandey
- Polymer Science and Engineering CSIR‐National Chemical Laboratory Pune Maharashtra India
| | - Naresh Killi
- Polymer Science and Engineering CSIR‐National Chemical Laboratory Pune Maharashtra India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad Uttar Pradesh India
| | - Rathna Venkata Naga Gundloori
- Polymer Science and Engineering CSIR‐National Chemical Laboratory Pune Maharashtra India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad Uttar Pradesh India
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Naskar D, Sapru S, Ghosh AK, Reis RL, Dey T, Kundu SC. Nonmulberry silk proteins: multipurpose ingredient in bio-functional assembly. Biomed Mater 2021; 16. [PMID: 34428758 DOI: 10.1088/1748-605x/ac20a0] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 08/24/2021] [Indexed: 01/27/2023]
Abstract
The emerging field of tissue engineering and regenerative medicines utilising artificial polymers is facing many problems. Despite having mechanical stability, non-toxicity and biodegradability, most of them lack cytocompatibility and biocompatibility. Natural polymers (such as collagen, hyaluronic acid, fibrin, fibroin, and others), including blends, are introduced to the field to solve some of the relevant issues. Another natural biopolymer: silkworm silk gained special attention primarily due to its specific biophysical, biochemical, and material properties, worldwide availability, and cost-effectiveness. Silk proteins, namely fibroin and sericin extracted from domesticated mulberry silkwormBombyx mori, are studied extensively in the last few decades for tissue engineering. Wild nonmulberry silkworm species, originated from India and other parts of the world, also produce silk proteins with variations in their nature and properties. Among the nonmulberry silkworm species,Antheraea mylitta(Indian Tropical Tasar),A. assamensis/A. assama(Indian Muga), andSamia ricini/Philosamia ricini(Indian Eri), along withA. pernyi(Chinese temperate Oak Tasar/Tussah) andA. yamamai(Japanese Oak Tasar) exhibit inherent tripeptide motifs of arginyl glycyl aspartic acid in their fibroin amino acid sequences, which support their candidacy as the potential biomaterials. Similarly, sericin isolated from such wild species delivers unique properties and is used as anti-apoptotic and growth-inducing factors in regenerative medicines. Other characteristics such as biodegradability, biocompatibility, and non-inflammatory nature make it suitable for tissue engineering and regenerative medicine based applications. A diverse range of matrices, including but not limited to nano-micro scale structures, nanofibres, thin films, hydrogels, and porous scaffolds, are prepared from the silk proteins (fibroins and sericins) for biomedical and tissue engineering research. This review aims to represent the progress made in medical and non-medical applications in the last couple of years and depict the present status of the investigations on Indian nonmulberry silk-based matrices as a particular reference due to its remarkable potentiality of regeneration of different types of tissues. It also discusses the future perspective in tissue engineering and regenerative medicines in the context of developing cutting-edge techniques such as 3D printing/bioprinting, microfluidics, organ-on-a-chip, and other electronics, optical and thermal property-based applications.
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Affiliation(s)
- Deboki Naskar
- Department of Biotechnology, Indian Institute of Technology, Kharagpur, West Bengal 721302, India.,Present address: Cambridge Institute for Medical Research, School of Clinical Medicine, University of Cambridge, Hills Road, Cambridge CB2 0XY, United Kingdom
| | - Sunaina Sapru
- Department of Biotechnology, Indian Institute of Technology, Kharagpur, West Bengal 721302, India.,Present address: Robert H. Smith Faculty of Agriculture, Food and Environment, The Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Rehovot, IL, Israel
| | - Ananta K Ghosh
- Department of Biotechnology, Indian Institute of Technology, Kharagpur, West Bengal 721302, India
| | - Rui L Reis
- 3Bs Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark-4805-017 Barco, Guimaraes, Portugal
| | - Tuli Dey
- Institute of Bioinformatics and Biotechnology, Savitribai Phule Pune University, Pune, Maharashtra 411007, India
| | - Subhas C Kundu
- Department of Biotechnology, Indian Institute of Technology, Kharagpur, West Bengal 721302, India.,3Bs Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark-4805-017 Barco, Guimaraes, Portugal
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79
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Plesselova S, Garcia-Cerezo P, Blanco V, Reche-Perez FJ, Hernandez-Mateo F, Santoyo-Gonzalez F, Giron-Gonzalez MD, Salto-Gonzalez R. Polyethylenimine-Bisphosphonate-Cyclodextrin Ternary Conjugates: Supramolecular Systems for the Delivery of Antineoplastic Drugs. J Med Chem 2021; 64:12245-12260. [PMID: 34369757 PMCID: PMC8477368 DOI: 10.1021/acs.jmedchem.1c00887] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Bisphosphonates (BPs) are bone-binding molecules that provide targeting capabilities to bone cancer cells when conjugated with drug-carrying polymers. This work reports the design, synthesis, and biological evaluation of polyethyleneimine-BP-cyclodextrin (PEI-BP-CD) ternary conjugates with supramolecular capabilities for the loading of antineoplastic drugs. A straightforward, modular, and versatile strategy based on the click aza-Michael addition reaction of vinyl sulfones (VSs) allows the grafting of BPs targeting ligands and βCD carrier appendages to the PEI polymeric scaffold. The in vitro evaluation (cytotoxicity, cellular uptake, internalization routes, and subcellular distribution) for the ternary conjugates and their doxorubicin inclusion complexes in different bone-related cancer cell lines (MC3T3-E1 osteoblasts, MG-63 sarcoma cells, and MDA-MB-231 breast cancer cells) confirmed specificity, mitochondrial targeting, and overall capability to mediate a targeted drug transport to those cells. The in vivo evaluation using xenografts of MG-63 and MDA-MB-231 cells on mice also confirmed the targeting of the conjugates.
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Affiliation(s)
- Simona Plesselova
- Department of Biochemistry and Molecular Biology II, School of Pharmacy, University of Granada, E-18071 Granada, Spain.,Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, E-18071 Granada, Spain
| | - Pablo Garcia-Cerezo
- Department of Organic Chemistry, School of Sciences, University of Granada, E-18071 Granada, Spain.,Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, E-18071 Granada, Spain
| | - Victor Blanco
- Department of Organic Chemistry, School of Sciences, University of Granada, E-18071 Granada, Spain.,Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, E-18071 Granada, Spain
| | - Francisco J Reche-Perez
- Department of Biochemistry and Molecular Biology II, School of Pharmacy, University of Granada, E-18071 Granada, Spain.,Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, E-18071 Granada, Spain
| | - Fernando Hernandez-Mateo
- Department of Organic Chemistry, School of Sciences, University of Granada, E-18071 Granada, Spain.,Biotechnology Institute, University of Granada, E-18071 Granada, Spain.,Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, E-18071 Granada, Spain
| | - Francisco Santoyo-Gonzalez
- Department of Organic Chemistry, School of Sciences, University of Granada, E-18071 Granada, Spain.,Biotechnology Institute, University of Granada, E-18071 Granada, Spain.,Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, E-18071 Granada, Spain
| | - María Dolores Giron-Gonzalez
- Department of Biochemistry and Molecular Biology II, School of Pharmacy, University of Granada, E-18071 Granada, Spain.,Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, E-18071 Granada, Spain
| | - Rafael Salto-Gonzalez
- Department of Biochemistry and Molecular Biology II, School of Pharmacy, University of Granada, E-18071 Granada, Spain.,Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, E-18071 Granada, Spain
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80
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Jurak M, Wiącek AE, Ładniak A, Przykaza K, Szafran K. What affects the biocompatibility of polymers? Adv Colloid Interface Sci 2021; 294:102451. [PMID: 34098385 DOI: 10.1016/j.cis.2021.102451] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 05/21/2021] [Accepted: 05/22/2021] [Indexed: 02/07/2023]
Abstract
In recent decades synthetic polymers have gained increasing popularity, and nowadays they are an integral part of people's daily lives. In addition, owing to their competitive advantage and being susceptible to modification, polymers have stimulated the fast development of innovative technologies in many areas of science. Biopolymers are of particular interest in various branches of medicine, such as implantology of bones, cartilage and skin tissues as well as blood vessels. Biomaterials with such specific applications must have appropriate mechanical and strength characteristics and above all they must be compatible with the surrounding tissues, human blood and its components, i.e. exhibit high hemo- and biocompatibility, low or no thrombo- and carcinogenicity, foreign body response (host response), appropriate osteoconduction, osteoinduction and mineralization. For biocompatibility improvement many surface treatment techniques have been utilized leading to fabricate the polymer biomaterials of required properties, also at nanoscale. This review paper discusses the most important physicochemical and biological factors that affect the biocompatibility, thus the reaction of the living organism after insertion of the polymer-based biomaterials, i.e. surface modification and/or degradation, surface composition (functional groups and charge), size and shapes, hydrophilic-hydrophobic character, wettability and surface free energy, topography (roughness, stiffness), crystalline and amorphous structure, nanostructure, cell adhesion and proliferation, cellular uptake. Particularly, the application of polysaccharides (chitosan, cellulose, starch) in the tissue engineering is emphasized.
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81
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Salerno A, Netti PA. Review on Computer-Aided Design and Manufacturing of Drug Delivery Scaffolds for Cell Guidance and Tissue Regeneration. Front Bioeng Biotechnol 2021; 9:682133. [PMID: 34249885 PMCID: PMC8264554 DOI: 10.3389/fbioe.2021.682133] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 05/26/2021] [Indexed: 12/11/2022] Open
Abstract
In the last decade, additive manufacturing (AM) processes have updated the fields of biomaterials science and drug delivery as they promise to realize bioengineered multifunctional devices and implantable tissue engineering (TE) scaffolds virtually designed by using computer-aided design (CAD) models. However, the current technological gap between virtual scaffold design and practical AM processes makes it still challenging to realize scaffolds capable of encoding all structural and cell regulatory functions of the native extracellular matrix (ECM) of health and diseased tissues. Indeed, engineering porous scaffolds capable of sequestering and presenting even a complex array of biochemical and biophysical signals in a time- and space-regulated manner, require advanced automated platforms suitable of processing simultaneously biomaterials, cells, and biomolecules at nanometric-size scale. The aim of this work was to review the recent scientific literature about AM fabrication of drug delivery scaffolds for TE. This review focused on bioactive molecule loading into three-dimensional (3D) porous scaffolds, and their release effects on cell fate and tissue growth. We reviewed CAD-based strategies, such as bioprinting, to achieve passive and stimuli-responsive drug delivery scaffolds for TE and cancer precision medicine. Finally, we describe the authors' perspective regarding the next generation of CAD techniques and the advantages of AM, microfluidic, and soft lithography integration for enhancing 3D porous scaffold bioactivation toward functional bioengineered tissues and organs.
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Affiliation(s)
| | - Paolo A. Netti
- Center for Advanced Biomaterials for Healthcare, Istituto Italiano di Tecnologia, Naples, Italy
- Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, Naples, Italy
- Interdisciplinary Research Center on Biomaterials, University of Naples Federico II, Naples, Italy
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82
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Oliveira IM, Fernandes DC, Cengiz IF, Reis RL, Oliveira JM. Hydrogels in the treatment of rheumatoid arthritis: drug delivery systems and artificial matrices for dynamic in vitro models. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2021; 32:74. [PMID: 34156535 PMCID: PMC8219548 DOI: 10.1007/s10856-021-06547-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 05/31/2021] [Indexed: 05/04/2023]
Abstract
Rheumatoid arthritis (RA) is an autoimmune and chronic inflammatory disorder that mostly affects the synovial joints and can promote both cartilage and bone tissue destruction. Several conservative treatments are available to relieve pain and control the inflammation; however, traditional drugs administration are not fully effective and present severe undesired side effects. Hydrogels are a very attractive platform as a drug delivery system to guarantee these handicaps are reduced, and the therapeutic effect from the drugs is maximized. Furthermore, hydrogels can mimic the physiological microenvironment and have the mechanical behavior needed for use as cartilage in vitro model. The testing of these advanced delivery systems is still bound to animal disease models that have shown low predictability. Alternatively, hydrogel-based human dynamic in vitro systems can be used to model diseases, bypassing some of the animal testing problems. RA dynamic disease models are still in an embryonary stage since advances regarding healthy and inflamed cartilage models are currently giving the first steps regarding complexity increase. Herein, recent studies using hydrogels in the treatment of RA, featuring different hydrogel formulations are discussed. Besides, their use as artificial extracellular matrices in dynamic in vitro articular cartilage is also reviewed.
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Affiliation(s)
- Isabel Maria Oliveira
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Guimarães, Portugal
- ICVS/3B's-PT Government Associate Laboratory, 4805-017, Braga/Guimarães, Portugal
| | - Diogo Castro Fernandes
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Guimarães, Portugal
- ICVS/3B's-PT Government Associate Laboratory, 4805-017, Braga/Guimarães, Portugal
| | - Ibrahim Fatih Cengiz
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Guimarães, Portugal
- ICVS/3B's-PT Government Associate Laboratory, 4805-017, Braga/Guimarães, Portugal
| | - Rui Luís Reis
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Guimarães, Portugal
- ICVS/3B's-PT Government Associate Laboratory, 4805-017, Braga/Guimarães, Portugal
| | - Joaquim Miguel Oliveira
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4805-017, Braga/Guimarães, Portugal.
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83
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Shoushrah SH, Transfeld JL, Tonk CH, Büchner D, Witzleben S, Sieber MA, Schulze M, Tobiasch E. Sinking Our Teeth in Getting Dental Stem Cells to Clinics for Bone Regeneration. Int J Mol Sci 2021; 22:6387. [PMID: 34203719 PMCID: PMC8232184 DOI: 10.3390/ijms22126387] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/27/2021] [Accepted: 06/02/2021] [Indexed: 12/12/2022] Open
Abstract
Dental stem cells have been isolated from the medical waste of various dental tissues. They have been characterized by numerous markers, which are evaluated herein and differentiated into multiple cell types. They can also be used to generate cell lines and iPSCs for long-term in vitro research. Methods for utilizing these stem cells including cellular systems such as organoids or cell sheets, cell-free systems such as exosomes, and scaffold-based approaches with and without drug release concepts are reported in this review and presented with new pictures for clarification. These in vitro applications can be deployed in disease modeling and subsequent pharmaceutical research and also pave the way for tissue regeneration. The main focus herein is on the potential of dental stem cells for hard tissue regeneration, especially bone, by evaluating their potential for osteogenesis and angiogenesis, and the regulation of these two processes by growth factors and environmental stimulators. Current in vitro and in vivo publications show numerous benefits of using dental stem cells for research purposes and hard tissue regeneration. However, only a few clinical trials currently exist. The goal of this review is to pinpoint this imbalance and encourage scientists to pick up this research and proceed one step further to translation.
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Affiliation(s)
| | | | | | | | | | | | | | - Edda Tobiasch
- Department of Natural Sciences, Bonn-Rhein-Sieg University of Applied Sciences, von-Liebig- Strasse. 20, 53359 Rheinbach, Germany; (S.H.S.); (J.L.T.); (C.H.T.); (D.B.); (S.W.); (M.A.S.); (M.S.)
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84
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Luraghi A, Peri F, Moroni L. Electrospinning for drug delivery applications: A review. J Control Release 2021; 334:463-484. [PMID: 33781809 DOI: 10.1016/j.jconrel.2021.03.033] [Citation(s) in RCA: 227] [Impact Index Per Article: 75.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/23/2021] [Accepted: 03/24/2021] [Indexed: 12/20/2022]
Abstract
Drug delivery devices are promising tools in the pharmaceutical field, as they are able to maximize the therapeutic effects of the delivered drug while minimizing the undesired side effects. In the past years, electrospun nanofibers attracted rising attention due to their unique features, like biocompatibility and broad flexibility. Incorporation of active principles in nanofibrous meshes proved to be an efficient method for in situ delivery of a wide range of drugs, expanding the possibility and applicability of those devices. In this review, the principle of electrospinning and different fields of applications are treated to give an overview of the recent literature, underlining the easy tuning and endless combination of this technique, that in the future could be the new frontier of personalized medicine.
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Affiliation(s)
- Andrea Luraghi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, 2, 20126 Milan, Italy
| | - Francesco Peri
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, 2, 20126 Milan, Italy
| | - Lorenzo Moroni
- Complex Tissue Regeneration Department, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, 6229 ET Maastricht, the Netherlands.
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85
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Bielas R, Maksym P, Tarnacka M, Minecka A, Jurkiewicz K, Talik A, Geppert-Rybczyńska M, Grelska J, Mielańczyk Ł, Bernat R, Kamiński K, Paluch M, Kamińska E. Synthetic strategy matters: The study of a different kind of PVP as micellar vehicles of metronidazole. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115789] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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86
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Tabassum N, Ahmed S, Ali MA. Chitooligosaccharides and their structural-functional effect on hydrogels: A review. Carbohydr Polym 2021; 261:117882. [DOI: 10.1016/j.carbpol.2021.117882] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 02/16/2021] [Accepted: 02/26/2021] [Indexed: 02/08/2023]
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87
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Development of plasma functionalized polypropylene wound dressing for betaine hydrochloride controlled drug delivery on diabetic wounds. Sci Rep 2021; 11:9641. [PMID: 33953292 PMCID: PMC8100292 DOI: 10.1038/s41598-021-89105-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Accepted: 04/20/2021] [Indexed: 02/07/2023] Open
Abstract
Diabetes Mellitus is one of the most worrying issues among illnesses, and its chronic subsequences almost refer to inflammations and infections. The loading and local release of antioxidants to wounds may decrease inflammations. However, the low wettability of PolyPropylene (PP) restricts the drug from loading. So, to increase the adhesion of PP for loading an optimum amount of Betaine Hydrochloride (BET), plasma has been applied in two steps of functionalization and polymerization, which has been confirmed with FE-SEM, ATR-FTIR, and EDX. The new chemistry of the surface led to almost 80% of BET loaded. The drug-releasing ratio studied by HPLC approved the presence of a PEG-like layer, which was coated by polymerization of tetraglyme. To evaluate the wound healing potential of the application of PP meshes treated by plasma, 72 Wistar rats were subdivided into four groups. The skin injury site was removed and underwent biomechanical tests, stereological analysis, and RNA extraction. The results showed a significant improvement in the polymerized scaffold containing BET for skin injury. The present study suggests that the use of a modified PP mesh can induce tissue regeneration and accelerate wound healing at the skin injury site.
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88
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Kirillova A, Yeazel TR, Asheghali D, Petersen SR, Dort S, Gall K, Becker ML. Fabrication of Biomedical Scaffolds Using Biodegradable Polymers. Chem Rev 2021; 121:11238-11304. [PMID: 33856196 DOI: 10.1021/acs.chemrev.0c01200] [Citation(s) in RCA: 94] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Degradable polymers are used widely in tissue engineering and regenerative medicine. Maturing capabilities in additive manufacturing coupled with advances in orthogonal chemical functionalization methodologies have enabled a rapid evolution of defect-specific form factors and strategies for designing and creating bioactive scaffolds. However, these defect-specific scaffolds, especially when utilizing degradable polymers as the base material, present processing challenges that are distinct and unique from other classes of materials. The goal of this review is to provide a guide for the fabrication of biodegradable polymer-based scaffolds that includes the complete pathway starting from selecting materials, choosing the correct fabrication method, and considering the requirements for tissue specific applications of the scaffold.
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Affiliation(s)
- Alina Kirillova
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, United States
| | - Taylor R Yeazel
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, United States
| | - Darya Asheghali
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Shannon R Petersen
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Sophia Dort
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Ken Gall
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, United States
| | - Matthew L Becker
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, United States.,Department of Chemistry, Duke University, Durham, North Carolina 27708, United States.,Departments of Biomedical Engineering and Orthopaedic Surgery, Duke University, Durham, North Carolina 27708, United States
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89
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Ihlenburg RBJ, Mai T, Thünemann AF, Baerenwald R, Saalwächter K, Koetz J, Taubert A. Sulfobetaine Hydrogels with a Complex Multilength-Scale Hierarchical Structure. J Phys Chem B 2021; 125:3398-3408. [PMID: 33769825 DOI: 10.1021/acs.jpcb.0c10601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Hydrogels with a hierarchical structure were prepared from a new highly water-soluble crosslinker N,N,N',N'-tetramethyl-N,N'-bis(2-ethylmethacrylate)-propyl-1,3-diammonium dibromide and from the sulfobetaine monomer 2-(N-3-sulfopropyl-N,N-dimethyl ammonium)ethyl methacrylate. The free radical polymerization of the two compounds is rapid and yields near-transparent hydrogels with sizes up to 5 cm in diameter. Rheology shows a clear correlation between the monomer-to-crosslinker ratio and the storage and loss moduli of the hydrogels. Cryo-scanning electron microscopy, low-field nuclear magnetic resonance (NMR) spectroscopy, and small-angle X-ray scattering show that the gels have a hierarchical structure with features spanning the nanometer to the sub-millimeter scale. The NMR study is challenged by the marked inhomogeneity of the gels and the complex chemical structure of the sulfobetaine monomer. NMR spectroscopy shows how these complications can be addressed via a novel fitting approach that considers the mobility gradient along the side chain of methacrylate-based monomers.
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Affiliation(s)
- Ramona B J Ihlenburg
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, D-14476 Golm, Germany
| | - Tobias Mai
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, D-14476 Golm, Germany
| | - Andreas F Thünemann
- Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, D-12205 Berlin, Germany
| | - Ruth Baerenwald
- Institut für Physik-NMR, Martin-Luther-Universität Halle-Wittenberg, Betty-Heimann-Str. 7, D-06120 Halle, Germany
| | - Kay Saalwächter
- Institut für Physik-NMR, Martin-Luther-Universität Halle-Wittenberg, Betty-Heimann-Str. 7, D-06120 Halle, Germany
| | - Joachim Koetz
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, D-14476 Golm, Germany
| | - Andreas Taubert
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, D-14476 Golm, Germany
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90
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Shcherbakov AB, Reukov VV, Yakimansky AV, Krasnopeeva EL, Ivanova OS, Popov AL, Ivanov VK. CeO 2 Nanoparticle-Containing Polymers for Biomedical Applications: A Review. Polymers (Basel) 2021; 13:924. [PMID: 33802821 PMCID: PMC8002506 DOI: 10.3390/polym13060924] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 03/11/2021] [Accepted: 03/14/2021] [Indexed: 12/16/2022] Open
Abstract
The development of advanced composite biomaterials combining the versatility and biodegradability of polymers and the unique characteristics of metal oxide nanoparticles unveils new horizons in emerging biomedical applications, including tissue regeneration, drug delivery and gene therapy, theranostics and medical imaging. Nanocrystalline cerium(IV) oxide, or nanoceria, stands out from a crowd of other metal oxides as being a truly unique material, showing great potential in biomedicine due to its low systemic toxicity and numerous beneficial effects on living systems. The combination of nanoceria with new generations of biomedical polymers, such as PolyHEMA (poly(2-hydroxyethyl methacrylate)-based hydrogels, electrospun nanofibrous polycaprolactone or natural-based chitosan or cellulose, helps to expand the prospective area of applications by facilitating their bioavailability and averting potential negative effects. This review describes recent advances in biomedical polymeric material practices, highlights up-to-the-minute cerium oxide nanoparticle applications, as well as polymer-nanoceria composites, and aims to address the question: how can nanoceria enhance the biomedical potential of modern polymeric materials?
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Affiliation(s)
- Alexander B. Shcherbakov
- Zabolotny Institute of Microbiology and Virology, National Academy of Sciences of Ukraine, 03680 Kyiv, Ukraine;
| | - Vladimir V. Reukov
- Department of Textiles, Merchandising and Interiors, University of Georgia, Athens, GA, 30602, USA;
| | - Alexander V. Yakimansky
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia; (A.V.Y.); (E.L.K.)
| | - Elena L. Krasnopeeva
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia; (A.V.Y.); (E.L.K.)
| | - Olga S. Ivanova
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 119991 Moscow, Russia; (O.S.I.); (A.L.P.)
| | - Anton L. Popov
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 119991 Moscow, Russia; (O.S.I.); (A.L.P.)
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, 142290 Moscow, Russia
| | - Vladimir K. Ivanov
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 119991 Moscow, Russia; (O.S.I.); (A.L.P.)
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91
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Turkoglu Sasmazel H, Alazzawi M, Kadim Abid Alsahib N. Atmospheric Pressure Plasma Surface Treatment of Polymers and Influence on Cell Cultivation. Molecules 2021; 26:molecules26061665. [PMID: 33802663 PMCID: PMC8002466 DOI: 10.3390/molecules26061665] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 03/04/2021] [Accepted: 03/06/2021] [Indexed: 12/31/2022] Open
Abstract
Atmospheric plasma treatment is an effective and economical surface treatment technique. The main advantage of this technique is that the bulk properties of the material remain unchanged while the surface properties and biocompatibility are enhanced. Polymers are used in many biomedical applications; such as implants, because of their variable bulk properties. On the other hand, their surface properties are inadequate which demands certain surface treatments including atmospheric pressure plasma treatment. In biomedical applications, surface treatment is important to promote good cell adhesion, proliferation, and growth. This article aim is to give an overview of different atmospheric pressure plasma treatments of polymer surface, and their influence on cell-material interaction with different cell lines.
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Affiliation(s)
- Hilal Turkoglu Sasmazel
- Department of Metallurgical and Materials Engineering, Atilim University, Incek, Golbasi, 06830 Ankara, Turkey
- Correspondence: ; Tel.: +90-(312)-586-8844
| | - Marwa Alazzawi
- Department of Biomedical Engineering, Al Nahrain University, Al Jadriya Bridge, Baghdad 64074, Iraq; (M.A.); (N.K.A.A.)
| | - Nabeel Kadim Abid Alsahib
- Department of Biomedical Engineering, Al Nahrain University, Al Jadriya Bridge, Baghdad 64074, Iraq; (M.A.); (N.K.A.A.)
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92
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Roshandel M, Dorkoosh F. Cardiac tissue engineering, biomaterial scaffolds, and their fabrication techniques. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5273] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Marjan Roshandel
- School of Chemical Engineering, College of Engineering University of Tehran Tehran Iran
| | - Farid Dorkoosh
- Department of Pharmaceutics, Faculty of Pharmacy Tehran University of Medical Sciences Tehran Iran
- Medical Biomaterial Research Centre (MBRC) Tehran University of Medical Sciences Tehran Iran
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93
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Aaliya B, Sunooj KV, Lackner M. Biopolymer composites: a review. INTERNATIONAL JOURNAL OF BIOBASED PLASTICS 2021. [DOI: 10.1080/24759651.2021.1881214] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Basheer Aaliya
- Department of Food Science and Technology, Pondicherry University , Puducherry, India
| | | | - Maximilian Lackner
- University of Applied Sciences FH Technikum Wien , Höchstädtplatz, Vienna, Austria
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94
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In-vivo evaluation of tissue scaffolds containing simvastatin loaded nanostructured lipid carriers and mesenchymal stem cells in diabetic wound healing. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2020.102140] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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95
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Castillo-Henríquez L, Castro-Alpízar J, Lopretti-Correa M, Vega-Baudrit J. Exploration of Bioengineered Scaffolds Composed of Thermo-Responsive Polymers for Drug Delivery in Wound Healing. Int J Mol Sci 2021; 22:1408. [PMID: 33573351 PMCID: PMC7866792 DOI: 10.3390/ijms22031408] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/13/2021] [Accepted: 01/27/2021] [Indexed: 02/06/2023] Open
Abstract
Innate and adaptive immune responses lead to wound healing by regulating a complex series of events promoting cellular cross-talk. An inflammatory response is presented with its characteristic clinical symptoms: heat, pain, redness, and swelling. Some smart thermo-responsive polymers like chitosan, polyvinylpyrrolidone, alginate, and poly(ε-caprolactone) can be used to create biocompatible and biodegradable scaffolds. These processed thermo-responsive biomaterials possess 3D architectures similar to human structures, providing physical support for cell growth and tissue regeneration. Furthermore, these structures are used as novel drug delivery systems. Locally heated tumors above the polymer lower the critical solution temperature and can induce its conversion into a hydrophobic form by an entropy-driven process, enhancing drug release. When the thermal stimulus is gone, drug release is reduced due to the swelling of the material. As a result, these systems can contribute to the wound healing process in accelerating tissue healing, avoiding large scar tissue, regulating the inflammatory response, and protecting from bacterial infections. This paper integrates the relevant reported contributions of bioengineered scaffolds composed of smart thermo-responsive polymers for drug delivery applications in wound healing. Therefore, we present a comprehensive review that aims to demonstrate these systems' capacity to provide spatially and temporally controlled release strategies for one or more drugs used in wound healing. In this sense, the novel manufacturing techniques of 3D printing and electrospinning are explored for the tuning of their physicochemical properties to adjust therapies according to patient convenience and reduce drug toxicity and side effects.
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Affiliation(s)
- Luis Castillo-Henríquez
- National Laboratory of Nanotechnology (LANOTEC), National Center for High Technology (CeNAT), 1174-1200 San José, Costa Rica;
- Physical Chemistry Laboratory, Faculty of Pharmacy, University of Costa Rica, 11501-2060 San José, Costa Rica
| | - Jose Castro-Alpízar
- Laboratory of Pharmaceutical Technology, Faculty of Pharmacy, University of Costa Rica, 11501-2060 San José, Costa Rica;
| | - Mary Lopretti-Correa
- Nuclear Research Center, Faculty of Science, Universidad de la República (UdelaR), 11300 Montevideo, Uruguay;
| | - José Vega-Baudrit
- National Laboratory of Nanotechnology (LANOTEC), National Center for High Technology (CeNAT), 1174-1200 San José, Costa Rica;
- Laboratory of Polymers (POLIUNA), Chemistry School, National University of Costa Rica, 86-3000 Heredia, Costa Rica
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96
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Mallakpour S, Sirous F, Hussain CM. Metal–organic frameworks/biopolymer nanocomposites: from fundamentals toward recent applications in modern technology. NEW J CHEM 2021. [DOI: 10.1039/d1nj01302e] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Bio–nanocomposite compounds based on biopolymers and MOFs have presented great potential in various applications for modern technology.
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Affiliation(s)
- Shadpour Mallakpour
- Organic Polymer Chemistry Research Laboratory
- Department of Chemistry
- Isfahan University of Technology
- Isfahan
- Islamic Republic of Iran
| | - Fariba Sirous
- Organic Polymer Chemistry Research Laboratory
- Department of Chemistry
- Isfahan University of Technology
- Isfahan
- Islamic Republic of Iran
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97
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Fitzgerald AA, Li E, Weiner LM. 3D Culture Systems for Exploring Cancer Immunology. Cancers (Basel) 2020; 13:cancers13010056. [PMID: 33379189 PMCID: PMC7795162 DOI: 10.3390/cancers13010056] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/20/2020] [Accepted: 12/23/2020] [Indexed: 12/12/2022] Open
Abstract
Simple Summary To study any disease, researchers need convenient and relevant disease models. In cancer, the most commonly used models are two-dimensional (2D) culture models, which grow cells on hard, rigid, plastic surfaces, and mouse models. Cancer immunology is especially difficult to model because the immune system is exceedingly complex; it contains multiple types of cells, and each cell type has several subtypes and a spectrum of activation states. These many immune cell types interact with cancer cells and other components of the tumor, ultimately influencing disease outcomes. 2D culture methods fail to recapitulate these complex cellular interactions. Mouse models also suffer because the murine and human immune systems vary significantly. Three-dimensional (3D) culture systems therefore provide an alternative method to study cancer immunology and can fill the current gaps in available models. This review will describe common 3D culture models and how those models have been used to advance our understanding of cancer immunology. Abstract Cancer immunotherapy has revolutionized cancer treatment, spurring extensive investigation into cancer immunology and how to exploit this biology for therapeutic benefit. Current methods to investigate cancer-immune cell interactions and develop novel drug therapies rely on either two-dimensional (2D) culture systems or murine models. However, three-dimensional (3D) culture systems provide a potentially superior alternative model to both 2D and murine approaches. As opposed to 2D models, 3D models are more physiologically relevant and better replicate tumor complexities. Compared to murine models, 3D models are cheaper, faster, and can study the human immune system. In this review, we discuss the most common 3D culture systems—spheroids, organoids, and microfluidic chips—and detail how these systems have advanced our understanding of cancer immunology.
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98
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Development of Epidermal Equivalent from Electrospun Synthetic Polymers for In Vitro Irritation/Corrosion Testing. NANOMATERIALS 2020; 10:nano10122528. [PMID: 33339410 PMCID: PMC7766501 DOI: 10.3390/nano10122528] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/10/2020] [Accepted: 12/10/2020] [Indexed: 12/14/2022]
Abstract
The development of products for topical applications requires analyses of their skin effects before they are destined for the market. At present, the ban on animal use in several tests makes the search for in vitro models (such as artificial skin) necessary to characterize the risks involved. In this work, tissue engineering concepts were used to manufacture collagen-free three-dimensional scaffolds for cell growth and proliferation. Two different human skin models-reconstructed human epidermis and full-thickness skin-were developed from electrospun scaffolds using synthetic polymers such as polyethylene terephthalate, polybutylene terephthalate, and nylon 6/6. After the construction of these models, their histology was analyzed by H&E staining and immunohistochemistry. The results revealed a reconstructed epidermal tissue, duly stratified, obtained from the nylon scaffold. In this model, the presence of proteins involved in the epidermis stratification process (cytokeratin 14, cytokeratin 10, involucrin, and loricrin) was confirmed by immunohistochemistry and Western blot analysis. The nylon reconstructed human epidermis model's applicability was evaluated as a platform to perform irritation and corrosion tests. Our results demonstrated that this model is a promising platform to assess the potential of dermal irritation/corrosion of chemical products.
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99
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Hydrogels as Drug Delivery Systems: A Review of Current Characterization and Evaluation Techniques. Pharmaceutics 2020; 12:pharmaceutics12121188. [PMID: 33297493 PMCID: PMC7762425 DOI: 10.3390/pharmaceutics12121188] [Citation(s) in RCA: 152] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 11/18/2020] [Accepted: 11/19/2020] [Indexed: 12/15/2022] Open
Abstract
Owing to their tunable properties, controllable degradation, and ability to protect labile drugs, hydrogels are increasingly investigated as local drug delivery systems. However, a lack of standardized methodologies used to characterize and evaluate drug release poses significant difficulties when comparing findings from different investigations, preventing an accurate assessment of systems. Here, we review the commonly used analytical techniques for drug detection and quantification from hydrogel delivery systems. The experimental conditions of drug release in saline solutions and their impact are discussed, along with the main mathematical and statistical approaches to characterize drug release profiles. We also review methods to determine drug diffusion coefficients and in vitro and in vivo models used to assess drug release and efficacy with the goal to provide guidelines and harmonized practices when investigating novel hydrogel drug delivery systems.
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100
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Guidotti G, Soccio M, Gazzano M, Bloise N, Bruni G, Aluigi A, Visai L, Munari A, Lotti N. Biocompatible PBS-based copolymer for soft tissue engineering: Introduction of disulfide bonds as winning tool to tune the final properties. Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109403] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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