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Petrescu N, Crisan B, Aghiorghiesei O, Sarosi C, Mirica IC, Lucaciu O, Iușan SAL, Dirzu N, Apostu D. Gradual Drug Release Membranes and Films Used for the Treatment of Periodontal Disease. MEMBRANES 2022; 12:895. [PMID: 36135916 PMCID: PMC9503414 DOI: 10.3390/membranes12090895] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/10/2022] [Accepted: 09/14/2022] [Indexed: 06/16/2023]
Abstract
Periodontitis is an inflammatory disease that, if not treated, can cause a lot of harm to the oral cavity, to the patients' quality of life, and to the entire community. There is no predictable standardized treatment for periodontitis, but there have been many attempts, using antibiotics, tissue regeneration techniques, dental scaling, or root planning. Due to the limits of the above-mentioned treatment, the future seems to be local drug delivery systems, which could gradually release antibiotics and tissue regeneration inducers at the same time. Local gradual release of antibiotics proved to be more efficient than systemic administration. In this review, we have made a literature search to identify the articles related to this topic and to find out which carriers have been tested for drug release as an adjuvant in the treatment of periodontitis. Considering the inclusion and exclusion criteria, 12 articles were chosen to be part of this review. The selected articles indicated that the drug-releasing carriers in periodontitis treatment were membranes and films fabricated from different types of materials and through various methods. Some of the drugs released by the films and membranes in the selected articles include doxycycline, tetracycline, metronidazole, levofloxacin, and minocycline, all used with good outcome regarding their bactericide effect; BMP-2, Zinc-hydroxyapatite nanoparticles with regenerative effect. The conclusion derived from the selected studies was that gradual drug release in the periodontal pockets is a promising strategy as an adjuvant for the treatment of periodontal disease.
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Affiliation(s)
- Nausica Petrescu
- Department of Oral Health, Iuliu Hatieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Bogdan Crisan
- Department of Maxillofacial Surgery and Oral Implantology, Iuliu Hatieganu University of Medicine and Pharmacy, 400029 Cluj-Napoca, Romania
| | - Ovidiu Aghiorghiesei
- Department of Oral Health, Iuliu Hatieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Codruta Sarosi
- Institute of Chemistry Raluca Ripan, Department of Polymer Composites, Babes-Bolyai University, 400294 Cluj-Napoca, Romania
| | - Ioana Codruta Mirica
- Department of Oral Health, Iuliu Hatieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Ondine Lucaciu
- Department of Oral Health, Iuliu Hatieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | | | - Noemi Dirzu
- Medfuture Research Center for Advanced Medicine, School of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400347 Cluj-Napoca, Romania
| | - Dragos Apostu
- Department of Orthopaedics and Traumatology, Iuliu Hatieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
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2
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Development and Characterization of Gentamicin-Loaded Arabinoxylan-Sodium Alginate Films as Antibacterial Wound Dressing. Int J Mol Sci 2022; 23:ijms23052899. [PMID: 35270041 PMCID: PMC8911204 DOI: 10.3390/ijms23052899] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/23/2022] [Accepted: 03/04/2022] [Indexed: 02/07/2023] Open
Abstract
Biopolymer-based antibacterial films are attractive materials for wound dressing application because they possess chemical, mechanical, exudate absorption, drug delivery, antibacterial, and biocompatible properties required to support wound healing. Herein, we fabricated and characterized films composed of arabinoxylan (AX) and sodium alginate (SA) loaded with gentamicin sulfate (GS) for application as a wound dressing. The FTIR, XRD, and thermal analyses show that AX, SA, and GS interacted through hydrogen bonding and were thermally stable. The AXSA film displays desirable wound dressing characteristics: transparency, uniform thickness, smooth surface morphology, tensile strength similar to human skin, mild water/exudate uptake capacity, water transmission rate suitable for wound dressing, and excellent cytocompatibility. In Franz diffusion release studies, >80% GS was released from AXSA films in two phases in 24 h following the Fickian diffusion mechanism. In disk diffusion assay, the AXSA films demonstrated excellent antibacterial effect against E.coli, S. aureus, and P. aeruginosa. Overall, the findings suggest that GS-loaded AXSA films hold potential for further development as antibacterial wound dressing material.
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Baranov N, Popa M, Atanase LI, Ichim DL. Polysaccharide-Based Drug Delivery Systems for the Treatment of Periodontitis. Molecules 2021; 26:2735. [PMID: 34066568 PMCID: PMC8125343 DOI: 10.3390/molecules26092735] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 04/21/2021] [Accepted: 05/05/2021] [Indexed: 02/04/2023] Open
Abstract
Periodontal diseases are worldwide health problems that negatively affect the lifestyle of many people. The long-term effect of the classical treatments, including the mechanical removal of bacterial plaque, is not effective enough, causing the scientific world to find other alternatives. Polymer-drug systems, which have different forms of presentation, chosen depending on the nature of the disease, the mode of administration, the type of polymer used, etc., have become very promising. Hydrogels, for example (in the form of films, micro-/nanoparticles, implants, inserts, etc.), contain the drug included, encapsulated, or adsorbed on the surface. Biologically active compounds can also be associated directly with the polymer chains by covalent or ionic binding (polymer-drug conjugates). Not just any polymer can be used as a support for drug combination due to the constraints imposed by the fact that the system works inside the body. Biopolymers, especially polysaccharides and their derivatives and to a lesser extent proteins, are preferred for this purpose. This paper aims to review in detail the biopolymer-drug systems that have emerged in the last decade as alternatives to the classical treatment of periodontal disease.
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Affiliation(s)
- Nicolae Baranov
- Faculty of Chemical Engineering and Protection of the Environment, “Gheorghe Asachi” Technical University, 700050 Iasi, Romania;
| | - Marcel Popa
- Faculty of Chemical Engineering and Protection of the Environment, “Gheorghe Asachi” Technical University, 700050 Iasi, Romania;
- Academy of Romanian Scientists, 50085 Bucharest, Romania
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Parikh KS, Omiadze R, Josyula A, Shi R, Anders NM, He P, Yazdi Y, McDonnell PJ, Ensign LM, Hanes J. Ultra-thin, high strength, antibiotic-eluting sutures for prevention of ophthalmic infection. Bioeng Transl Med 2021; 6:e10204. [PMID: 34027091 PMCID: PMC8126818 DOI: 10.1002/btm2.10204] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 11/25/2020] [Accepted: 11/26/2020] [Indexed: 11/17/2022] Open
Abstract
Sutures are applied almost universally at the site of trauma or surgery, making them an ideal platform to modulate the local, postoperative biological response, and improve surgical outcomes. To date, the only globally marketed drug-eluting sutures are coated with triclosan for antibacterial application in general surgery. Loading drug directly into the suture rather than coating the surface offers the potential to provide drug delivery functionality to microsurgical sutures and achieve sustained drug delivery without increasing suture thickness. However, conventional methods for drug incorporation directly into the suture adversely affect breaking strength. Thus, there are no market offerings for drug-eluting sutures, drug-coated, or otherwise, in ophthalmology, where very thin sutures are required. Sutures themselves help facilitate bacterial infection, and antibiotic eye drops are commonly prescribed to prevent infection after ocular surgeries. An antibiotic-eluting suture may prevent bacterial colonization of sutures and preclude patient compliance issues with eye drops. We report twisting of hundreds of individual drug-loaded, electrospun nanofibers into a single, ultra-thin, multifilament suture capable of meeting both size and strength requirements for microsurgical ocular procedures. Nanofiber-based polycaprolactone sutures demonstrated no loss in strength with loading of 8% levofloxacin, unlike monofilament sutures which lost more than 50% strength. Moreover, nanofiber-based sutures retained strength with loading of a broad range of drugs, provided antibiotic delivery for 30 days in rat eyes, and prevented ocular infection in a rat model of bacterial keratitis.
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Affiliation(s)
- Kunal S. Parikh
- Center for NanomedicineThe Wilmer Eye Institute, Johns Hopkins University School of MedicineBaltimoreMarylandUSA
- Department of OphthalmologyThe Wilmer Eye Institute, Johns Hopkins University School of MedicineBaltimoreMarylandUSA
- Center for Bioengineering Innovation & DesignJohns Hopkins UniversityBaltimoreMarylandUSA
- Department of Biomedical EngineeringJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Revaz Omiadze
- Center for NanomedicineThe Wilmer Eye Institute, Johns Hopkins University School of MedicineBaltimoreMarylandUSA
- Department of OphthalmologyThe Wilmer Eye Institute, Johns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Aditya Josyula
- Center for NanomedicineThe Wilmer Eye Institute, Johns Hopkins University School of MedicineBaltimoreMarylandUSA
- Department of Chemical and Biomolecular EngineeringJohns Hopkins UniversityBaltimoreMarylandUSA
| | - Richard Shi
- Center for NanomedicineThe Wilmer Eye Institute, Johns Hopkins University School of MedicineBaltimoreMarylandUSA
- Department of Biomedical EngineeringJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Nicole M. Anders
- Department of OncologySidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Ping He
- Department of OncologySidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Youseph Yazdi
- Center for Bioengineering Innovation & DesignJohns Hopkins UniversityBaltimoreMarylandUSA
- Department of Biomedical EngineeringJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Peter J. McDonnell
- Department of OphthalmologyThe Wilmer Eye Institute, Johns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Laura M. Ensign
- Center for NanomedicineThe Wilmer Eye Institute, Johns Hopkins University School of MedicineBaltimoreMarylandUSA
- Department of OphthalmologyThe Wilmer Eye Institute, Johns Hopkins University School of MedicineBaltimoreMarylandUSA
- Department of Biomedical EngineeringJohns Hopkins University School of MedicineBaltimoreMarylandUSA
- Department of Chemical and Biomolecular EngineeringJohns Hopkins UniversityBaltimoreMarylandUSA
- Department of OncologySidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Justin Hanes
- Center for NanomedicineThe Wilmer Eye Institute, Johns Hopkins University School of MedicineBaltimoreMarylandUSA
- Department of OphthalmologyThe Wilmer Eye Institute, Johns Hopkins University School of MedicineBaltimoreMarylandUSA
- Department of Biomedical EngineeringJohns Hopkins University School of MedicineBaltimoreMarylandUSA
- Department of Chemical and Biomolecular EngineeringJohns Hopkins UniversityBaltimoreMarylandUSA
- Department of OncologySidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of MedicineBaltimoreMarylandUSA
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Jain P, Mirza MA, Iqbal Z. A 4-D approach for amelioration of periodontitis. Med Hypotheses 2019; 133:109392. [PMID: 31521022 DOI: 10.1016/j.mehy.2019.109392] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 09/02/2019] [Accepted: 09/05/2019] [Indexed: 01/04/2023]
Abstract
Global prevalence of the severe periodontitis is at the alarming stage and its association with the systemic complications is highly evident which cannot be neglected. An insight into the pathophysiology of the periodontitis reveals that the promising amelioration could only be envisaged with the 4-D/multi-pronged approach of combining antibiotic along with the host modulating agents. The complications of the disease itself suggest that the use of antibiotic alone is not able to cater the symptoms completely. There is a need of other host modulatory agents too, such as Cyclo-oxygenase -II (COX II) enzyme inhibitors, Matrix metalloproteinase's (MMPs) inhibitors and osteo-integrating agents. Also, there is an unmet need of singular treatment modality through which all these agents can be sequentially and directly delivered into the periodontal cavity. The current hypothesis takes it a step forward wherein an antibiotic is combined with other three host modulatory agents in a singular drug delivery system. The encapsulation of multiple therapeutic agents with controlled release would therefore allow for reduced drug dose thus minimizing side effects; contributing to enhanced patient compliance and treatment efficacy. Hence this approach can be presented as a 4-D/multi-pronged approach for circumvention of periodontitis.
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Affiliation(s)
- Pooja Jain
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - M Aamir Mirza
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Zeenat Iqbal
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India.
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Aggarwal G, Verma S, Gupta M, Nagpal M. Local Drug Delivery Based Treatment Approaches for Effective Management of Periodontitis. CURRENT DRUG THERAPY 2019. [DOI: 10.2174/1574885514666190103112855] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Periodontal disease is an immuno-inflammatory condition of
tissues that surround and hold the teeth. It is the disease which succeeds in all races,
groups and both genders. Almost 10 to15% of the global population gets suffered from
severe periodontitis as per WHO reports. Periodontal disease may likely cause other systemic
diseases such as cardiovascular disease and pre-term low birth weight infants. Mechanical
removal of plaques and calculus deposits from supra and subgingival environment
is the backbone of periodontal treatment till date whereas complete elimination of
these deleterious agents is quite unrealistic as the pocket depth increases.
Recent Approaches:
Recently controlled local drug delivery application is more encouraging
in comparison to systemic approach as it mainly targets to enhance the therapeutic
efficacy by maintaining site-specificity, avoiding first pass metabolism, reduction in gastrointestinal
(GI) side effects and decreasing the dose. Several drugs such as antiseptics
and antibiotics alongwith various carriers are being formulated as local drug delivery systems
for effective management of the disease. Various local delivery systems reported are
fibers, films, strips, compacts, injectables, microparticles, vesicular carriers, gels and
nanoparticles. These local carriers provide effective prolonged treatment at the site of
infection at reduced doses. This review enlightens detailed pathophysiology and various
phases of periodontitis, challenges in treatment of disease and various antimicrobial
agents (along with their marketed formulations) used. The main emphasis of the review is
to cover all carrier systems developed so far for local delivery application in the effective
management of periodontitis, as a patient compliant drug therapy.
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Affiliation(s)
- Geeta Aggarwal
- Delhi Pharmaceutical Sciences and Research University, Pushp Vihar, Sector-3 MB Road, New Delhi-110017, India
| | - Sonia Verma
- Delhi Pharmaceutical Sciences and Research University, Pushp Vihar, Sector-3 MB Road, New Delhi-110017, India
| | - Madhu Gupta
- Delhi Pharmaceutical Sciences and Research University, Pushp Vihar, Sector-3 MB Road, New Delhi-110017, India
| | - Manju Nagpal
- Chitkara College of Pharmacy, Chitkara University, Chandigarh-Patiala National Highway, Rajpura, Patiala-140401, India
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7
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Ramos DM, Abdulmalik S, Arul MR, Rudraiah S, Laurencin CT, Mazzocca AD, Kumbar SG. Insulin immobilized PCL-cellulose acetate micro-nanostructured fibrous scaffolds for tendon tissue engineering. POLYM ADVAN TECHNOL 2019; 30:1205-1215. [PMID: 30956516 PMCID: PMC6448803 DOI: 10.1002/pat.4553] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 01/03/2019] [Indexed: 12/28/2022]
Abstract
Use of growth factors as biochemical molecules to elicit cellular differentiation is a common strategy in tissue engineering. However, limitations associated with growth factors, such as short half-life, high effective physiological doses, and high costs, have prompted the search for growth factor alternatives, such as growth factor mimics and other proteins. This work explores the use of insulin protein as a biochemical factor to aid in tendon healing and differentiation of cells on a biomimetic electrospun micro-nanostructured scaffold. Dose response studies were conducted using human mesenchymal stem cells (MSCs) in basal media supplemented with varied insulin concentrations. A dose of 100-ng/mL insulin showed increased expression of tendon markers. Synthetic-natural blends of various ratios of polycaprolactone (PCL) and cellulose acetate (CA) were used to fabricate micro-nanofibers to balance physicochemical properties of the scaffolds in terms of mechanical strength, hydrophilicity, and insulin delivery. A 75:25 ratio of PCL:CA was found to be optimal in promoting cellular attachment and insulin immobilization. Insulin insulin deliveryimmobilized fiber matrices also showed increased expression of tendon phenotypic markers by MSCs similar to findings with insulin supplemented media, indicating preservation of insulin bioactivity. Insulin functionalized scaffolds may have potential applications in tendon healing and regeneration.
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Affiliation(s)
- Daisy M. Ramos
- Department of Materials Science and Engineering, University of Connecticut, Storrs, Connecticut
- Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, Connecticut
| | - Sama Abdulmalik
- Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, Connecticut
- Department of Biomedical Engineering, University of Connecticut, Storrs, Connecticut
| | - Michael R. Arul
- Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, Connecticut
| | - Swetha Rudraiah
- Department of Pharmaceutical Sciences, University of Saint Joseph, Hartford, Connecticut
| | - Cato T. Laurencin
- Department of Materials Science and Engineering, University of Connecticut, Storrs, Connecticut
- Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, Connecticut
- Department of Biomedical Engineering, University of Connecticut, Storrs, Connecticut
| | - Augustus D. Mazzocca
- Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, Connecticut
| | - Sangamesh G. Kumbar
- Department of Materials Science and Engineering, University of Connecticut, Storrs, Connecticut
- Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, Connecticut
- Department of Biomedical Engineering, University of Connecticut, Storrs, Connecticut
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8
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Arbade GK, Jathar S, Tripathi V, Patro TU. Antibacterial, sustained drug release and biocompatibility studies of electrospun poly(
ε
-caprolactone)/chloramphenicol blend nanofiber scaffolds. Biomed Phys Eng Express 2018. [DOI: 10.1088/2057-1976/aac1a4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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9
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Hybrid Nanostructures Containing Sulfadiazine Modified Chitosan as Antimicrobial Drug Carriers. NANOMATERIALS 2016; 6:nano6110207. [PMID: 28335334 PMCID: PMC5245742 DOI: 10.3390/nano6110207] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 11/03/2016] [Accepted: 11/04/2016] [Indexed: 12/11/2022]
Abstract
Chitosan (CH) nanofibrous structures containing sulfadiazine (SDZ) or sulfadiazine modified chitosan (SCH) in the form of functional nanoparticles attached to nanofibers (hybrid nanostructures) were obtained by mono-axial and coaxial electrospinning. The mono-axial design consisted of a SDZ/CH mixture solution fed through a single nozzle while the coaxial design consisted of SCH and CH solutions separately supplied to the inner and outer nozzle (or in reverse order). The CH ability to form nanofibers assured the formation of a nanofiber mesh, while SDZ and SCH, both in form of suspensions in the electrospun solution, assured the formation of active nanoparticles which remained attached to the CH nanofiber mesh after the electrospinning process. The obtained nanostructures were morphologically characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM). The SDZ release profiles and kinetics were analyzed. The SDZ or SCH nanoparticles loosely attached at the surface of the nanofibers, provide a burst release in the first 20 min, which is important to stop the possible initial infection in a wound, while the SDZ and SCH from the nanoparticles which are better confined (or even encapsulated) into the CH nanofibers would be slowly released with the erosion/disruption of the CH nanofiber mesh.
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10
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Azimi B, Nourpanah P, Rabiee M, Arbab S, Grazia Cascone M, Baldassare A, Lazzeri L. Application of the dry-spinning method to produce poly(ε-caprolactone) fibers containing bovine serum albumin laden gelatin nanoparticles. J Appl Polym Sci 2016. [DOI: 10.1002/app.44233] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Bahareh Azimi
- Department of Textile Engineering; Amirkabir University of Technology; 424 Hafez Ave Tehran 15875-4413 Iran
- Department of Civil and Industrial Engineering; University of Pisa; largo Lucio Lazzarino 1 56122 Pisa Italy
| | - Parviz Nourpanah
- Department of Textile Engineering; Amirkabir University of Technology; 424 Hafez Ave Tehran 15875-4413 Iran
| | - Mohammad Rabiee
- Department of Biomedical Engineering; Amirkabir University of Technology; Tehran Iran
| | - Shahram Arbab
- Department of Textile Engineering; ATMT Research Institute, Amirkabir University of Technology; Tehran Iran
| | - Maria Grazia Cascone
- Department of Civil and Industrial Engineering; University of Pisa; largo Lucio Lazzarino 1 56122 Pisa Italy
| | - Andrea Baldassare
- Department of Civil and Industrial Engineering; University of Pisa; largo Lucio Lazzarino 1 56122 Pisa Italy
| | - Luigi Lazzeri
- Department of Civil and Industrial Engineering; University of Pisa; largo Lucio Lazzarino 1 56122 Pisa Italy
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Evaluation of poly ε-caprolactone electrospun nanofibers loaded with Hypericum perforatum extract as a wound dressing. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2623-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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Phaechamud T, Issarayungyuen P, Pichayakorn W. Gentamicin sulfate-loaded porous natural rubber films for wound dressing. Int J Biol Macromol 2016; 85:634-44. [DOI: 10.1016/j.ijbiomac.2016.01.040] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 01/07/2016] [Accepted: 01/11/2016] [Indexed: 12/16/2022]
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13
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Chitrattha S, Phaechamud T. Porous poly( dl -lactic acid) matrix film with antimicrobial activities for wound dressing application. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:1122-30. [DOI: 10.1016/j.msec.2015.09.083] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 09/15/2015] [Accepted: 09/23/2015] [Indexed: 10/23/2022]
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14
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Totaro A, Salerno A, Imparato G, Domingo C, Urciuolo F, Netti PA. PCL-HA microscaffolds for in vitro
modular bone tissue engineering. J Tissue Eng Regen Med 2015; 11:1865-1875. [DOI: 10.1002/term.2084] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 06/22/2015] [Accepted: 07/08/2015] [Indexed: 12/30/2022]
Affiliation(s)
- Alessandra Totaro
- Centre for Advanced Biomaterials for Health Care, CRIB Istituto Italiano di Tecnologia; Naples Italy
- Department of Chemical, Materials and Industrial Production (DICMAPI) and Interdisciplinary Research Centre on Biomaterials (CRIB); University of Naples Federico II; Italy
| | - Aurelio Salerno
- Institut de Ciència de Materials de Barcelona (ICMAB); Bellaterra Spain
| | - Giorgia Imparato
- Centre for Advanced Biomaterials for Health Care, CRIB Istituto Italiano di Tecnologia; Naples Italy
| | | | - Francesco Urciuolo
- Centre for Advanced Biomaterials for Health Care, CRIB Istituto Italiano di Tecnologia; Naples Italy
| | - Paolo Antonio Netti
- Centre for Advanced Biomaterials for Health Care, CRIB Istituto Italiano di Tecnologia; Naples Italy
- Department of Chemical, Materials and Industrial Production (DICMAPI) and Interdisciplinary Research Centre on Biomaterials (CRIB); University of Naples Federico II; Italy
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15
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Azimi B, Nourpanah P, Rabiee M, Arbab S, Cascone MG, Baldassare A, Lazzeri L. Application of response surface methodology to evaluate the effect of dry-spinning parameters on poly (ε-caprolactone) fiber properties. J Appl Polym Sci 2015. [DOI: 10.1002/app.42113] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Bahareh Azimi
- Department of Textile Engineering; Amirkabir University of Technology; 424 Hafez Ave Tehran 15875-4413 Iran
- Department of Civil and Industrial Engineering; University of Pisa; largo Lucio Lazzarino 1 56122 Pisa Italy
| | - Parviz Nourpanah
- Department of Textile Engineering; Amirkabir University of Technology; 424 Hafez Ave Tehran 15875-4413 Iran
| | - Mohammad Rabiee
- Department of Biomedical Engineering; Amirkabir University of Technology; Tehran Iran
| | - Shahram Arbab
- Department of Textile Engineering; ATMT Research Institute, Amirkabir University of Technology; Tehran Iran
| | - Maria Grazia Cascone
- Department of Civil and Industrial Engineering; University of Pisa; largo Lucio Lazzarino 1 56122 Pisa Italy
| | - Andrea Baldassare
- Department of Civil and Industrial Engineering; University of Pisa; largo Lucio Lazzarino 1 56122 Pisa Italy
| | - Luigi Lazzeri
- Department of Civil and Industrial Engineering; University of Pisa; largo Lucio Lazzarino 1 56122 Pisa Italy
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16
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Guadalupe E, Ramos D, Shelke NB, James R, Gibney C, Kumbar SG. Bioactive polymeric nanofiber matrices for skin regeneration. J Appl Polym Sci 2015. [DOI: 10.1002/app.41879] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Eross Guadalupe
- Department of Biomedical Engineering; University of Connecticut; Connecticut 06269
| | - Daisy Ramos
- Institute for Regenerative Engineering; University of Connecticut Health Center; Connecticut 06030
- The Raymond and Beverly Sackler Center for Biomedical; Biological, Physical and Engineering Sciences; Connecticut 06030
- Department of Orthopaedic Surgery; University of Connecticut Health Center; Connecticut 06030
- Department of Materials Science and Engineering; University of Connecticut; Connecticut 06269
| | - Namdev B. Shelke
- Institute for Regenerative Engineering; University of Connecticut Health Center; Connecticut 06030
- The Raymond and Beverly Sackler Center for Biomedical; Biological, Physical and Engineering Sciences; Connecticut 06030
- Department of Orthopaedic Surgery; University of Connecticut Health Center; Connecticut 06030
| | - Roshan James
- Institute for Regenerative Engineering; University of Connecticut Health Center; Connecticut 06030
- The Raymond and Beverly Sackler Center for Biomedical; Biological, Physical and Engineering Sciences; Connecticut 06030
- Department of Orthopaedic Surgery; University of Connecticut Health Center; Connecticut 06030
| | - Christian Gibney
- Department of Biomedical Engineering; University of Connecticut; Connecticut 06269
| | - Sangamesh G. Kumbar
- Institute for Regenerative Engineering; University of Connecticut Health Center; Connecticut 06030
- The Raymond and Beverly Sackler Center for Biomedical; Biological, Physical and Engineering Sciences; Connecticut 06030
- Department of Orthopaedic Surgery; University of Connecticut Health Center; Connecticut 06030
- Department of Materials Science and Engineering; University of Connecticut; Connecticut 06269
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Ke D, Dernell W, Bandyopadhyay A, Bose S. Doped tricalcium phosphate scaffolds by thermal decomposition of naphthalene: Mechanical properties and in vivo osteogenesis in a rabbit femur model. J Biomed Mater Res B Appl Biomater 2014; 103:1549-59. [PMID: 25504889 DOI: 10.1002/jbm.b.33321] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 09/25/2014] [Accepted: 10/18/2014] [Indexed: 01/17/2023]
Abstract
Tricalcium phosphate (TCP) is a bioceramic that is widely used in orthopedic and dental applications. TCP structures show excellent biocompatibility as well as biodegradability. In this study, porous β-TCP scaffolds were prepared by thermal decomposition of naphthalene. Scaffolds with 57.64% ± 3.54% density and a maximum pore size around 100 μm were fabricated via removing 30% naphthalene at 1150°C. The compressive strength for these scaffolds was 32.85 ± 1.41 MPa. Furthermore, by mixing 1 wt % SrO and 0.5 wt % SiO2 , pore interconnectivity improved, but the compressive strength decreased to 22.40 ± 2.70 MPa. However, after addition of polycaprolactone coating layers, the compressive strength of doped scaffolds increased to 29.57 ± 3.77 MPa. Porous scaffolds were implanted in rabbit femur defects to evaluate their biological property. The addition of dopants triggered osteoinduction by enhancing osteoid formation, osteocalcin expression, and bone regeneration, especially at the interface of the scaffold and host bone. This study showed processing flexibility to make interconnected porous scaffolds with different pore size and volume fraction porosity, while maintaining high compressive mechanical strength and excellent bioactivity. Results show that SrO/SiO2 -doped porous TCP scaffolds have excellent potential to be used in bone tissue engineering applications.
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Affiliation(s)
- Dongxu Ke
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington, 99164-2920
| | - William Dernell
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington, 99164-2920
| | - Amit Bandyopadhyay
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington, 99164-2920
| | - Susmita Bose
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington, 99164-2920
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Ryu TK, Kim SE, Kim JH, Moon SK, Choi SW. Biodegradable uniform microspheres based on solid-in-oil-in-water emulsion for drug delivery: A comparison of homogenization and fluidic device. J BIOACT COMPAT POL 2014. [DOI: 10.1177/0883911514544011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Based on solid-in-oil-in-water emulsification, we fabricated biodegradable poly(ϵ-caprolactone) microspheres containing gentamicin using conventional homogenization and a fluidic device. The feasibility of the poly(ϵ-caprolactone) microspheres as drug carriers was evaluated in terms of encapsulation efficiency, release behavior of gentamicin, and antimicrobial activity. The poly(ϵ-caprolactone) microspheres prepared using a fluidic device (fluidic device microspheres) had a uniform diameter and a smooth surface, whereas the poly(ϵ-caprolactone) microspheres prepared using conventional homogenization (conventional homogenization microspheres) exhibited polydisperse and a porous structure. At 0.3 wt% of gentamicin concentration, the encapsulation efficiencies of the conventional homogenization and fluidic device microspheres were 39.5% and 72.0%, respectively. In addition, a significant amount of gentamicin was only released initially from the conventional homogenization microspheres, whereas the fluidic device microspheres released gentamicin in a sustained manner for 28 days. These results confirmed the superior performances of the uniform fluidic device microspheres for drug delivery system. We further proposed a model for microsphere formation to explain the difference in performance of the conventional homogenization and fluidic device microspheres.
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Affiliation(s)
- Tae-Kyung Ryu
- Department of Biotechnology, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Sung Eun Kim
- Department of Orthopedic Surgery and Rare Diseases Institute, Korea University Medical College, Seoul, Republic of Korea
| | - Joo-Hwan Kim
- Department of Biotechnology, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Seung-Kwan Moon
- Department of Biotechnology, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Sung-Wook Choi
- Department of Biotechnology, The Catholic University of Korea, Bucheon, Republic of Korea
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Joshi D, Garg T, Goyal AK, Rath G. Advanced drug delivery approaches against periodontitis. Drug Deliv 2014; 23:363-77. [DOI: 10.3109/10717544.2014.935531] [Citation(s) in RCA: 116] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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Lan Y, Li W, Jiao Y, Guo R, Zhang Y, Xue W, Zhang Y. Therapeutic efficacy of antibiotic-loaded gelatin microsphere/silk fibroin scaffolds in infected full-thickness burns. Acta Biomater 2014; 10:3167-76. [PMID: 24704698 DOI: 10.1016/j.actbio.2014.03.029] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Revised: 03/24/2014] [Accepted: 03/26/2014] [Indexed: 10/25/2022]
Abstract
Despite advances in burn treatment, burn infection remains a major cause of morbidity and mortality. In this study, an antibacterial silk fibroin (SF) scaffold for burn treatment was designed; gelatin microspheres (GMs) were impregnated with the antibiotic gentamycin sulfate (GS), and the GS-impregnated GMs were then embedded in a SF matrix to fabricate GS/GM/SF scaffolds. The developed GS/GM/SF scaffolds could serve as a dermal regeneration template in full-thickness burns. The average pore size and porosity of the GS/GM/SF scaffolds were 40-80 μm and 85%, respectively. Furthermore, the drug release rate of the scaffolds was significantly slower than that of either GS/GM or GS/SF scaffolds. And the composite scaffold exhibited stronger antimicrobial activities against Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa. Hence, we evaluated the wound-healing effects and antibacterial properties of the GS/GM/SF scaffolds in a rat full-thickness burn infection model. Over 21 days, the GS/GM/SF scaffolds not only significantly reduced burn infection by P. aeruginosa but also accelerated the regeneration of the dermis and exhibited higher epithelialization rates than did GS/SF and SF scaffolds. Thus, GS/GM/SF scaffolds are potentially effective for treatment of full-thickness infected burns, and GS/GM/SF scaffolds are a promising therapeutic tool for severely burned patients.
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Ryu TK, Jun DR, Kim SE, Choi SW. Sustained release of antibiotics from uniform poly (ε-caprolactone) microspheres prepared by a simple fluidic device with a tapered glass capillary. J BIOACT COMPAT POL 2014. [DOI: 10.1177/0883911514537732] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Uniform poly(ε-caprolactone) microspheres containing a variety of water-soluble antibiotics, such as tobramycin, vancomycin, and gentamicin, were prepared by a simple fluidic device with a pristine or tapered glass capillary. Each type of antibiotic was dispersed in an organic solvent by ball-milling prior to microsphere preparation. The poly(ε-caprolactone) organic solution containing the powder of each antibiotic was introduced as the discontinuous phase into the fluidic device, where an aqueous phase containing surfactant served as the continuous phase. The poly(ε-caprolactone) microspheres were obtained after solvent evaporation. A tapered glass capillary was tested to produce poly(ε-caprolactone) microspheres, leading to the size reduction of the microspheres from 47.46 ± 0.72 to 25.49 ± 1.05 µm without destroying size uniformity. This size range should be suitable for parenteral injection into the human body. The release analysis revealed that gentamicin and vancomycin were released from the poly(ε-caprolactone) microspheres up to approximately 2 months in a more sustained manner than tobramycin, which is due to the solubility difference in the antibiotics in water. The antimicrobial activities of each type of antibiotic released from the poly(ε-caprolactone) microspheres were evaluated using Staphylococcus aureus and Escherichia coli.
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Affiliation(s)
- Tae-Kyung Ryu
- Department of Biotechnology, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Dae-Ryoung Jun
- Department of Biotechnology, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Sung Eun Kim
- Department of Orthopedic Surgery and Rare Diseases Institute, Korea University Medical College, Seoul, Republic of Korea
| | - Sung-Wook Choi
- Department of Biotechnology, The Catholic University of Korea, Bucheon, Republic of Korea
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Wang C, Wang M. Formation of Core–Shell Structures in Emulsion Electrospun Fibres: A Comparative Study. Aust J Chem 2014. [DOI: 10.1071/ch14214] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Electrospinning has attracted great attention in recent years from different industries including biomedical engineering. Owing to the relative ease of fabricating ultrafine fibres with core–shell structures, emulsion electrospinning has been investigated intensively for making nanofibrous delivery vehicles for local and sustained release of bioactive or therapeutic substances, especially biomolecules such as growth factors. In preparing emulsions for electrospinning, different surfactants, ionic or non-ionic, can be used, which may subsequently influence the evolution of the core–shell structure in the electrospun emulsion jet or fibre. In this investigation, emulsions consisting of deionized water or phosphate buffer saline as the water phase, a poly(lactic-co-glycolic acid) solution as the oil phase and Span 80 (a non-ionic surfactant) or sodium dodecyl sulfate (an ionic surfactant) were electrospun into fibres for studying the core–shell structure and its evolution in emulsion electrospun fibres. Different microscopies were employed to study the morphological changes of the water phase in fibre samples collected at different locations along the jet (or fibre) trajectory during emulsion electrospinning. It was found that the evolution of the fibre core–shell structure was significantly different when different surfactants were used. If Span 80 was the surfactant, the water phase within the thick emulsion jet (or fibre) close to the Taylor cone existed in a discrete state whereas in ultrafine fibres collected beyond a certain distance from the Taylor cone, a mostly continuous water-phase core was observed. If sodium dodecyl sulfate was the surfactant, the core–shell structure in the thick jet (or fibre) was irregular but relatively continuous. A single core core–shell structure was eventually developed in ultrafine fibres. The core–shell structure in electrospun fibres and its evolution were also affected by the emulsion composition (e.g. polymer solution concentration, water-phase volume, and ion addition in the water phase).
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Prolonged delivery of ciprofloxacin and diclofenac sodium from a polymeric fibre device for the treatment of periodontal disease. BIOMED RESEARCH INTERNATIONAL 2013; 2013:460936. [PMID: 24324962 PMCID: PMC3845435 DOI: 10.1155/2013/460936] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Accepted: 09/19/2013] [Indexed: 11/18/2022]
Abstract
In vitro analysis of drug release and antimicrobial activity of the coblended crosslinked polymeric fibre device (PFD) were investigated. The fibre loaded with ciprofloxacin and diclofenac sodium was comprised of alginate and glycerol crosslinked with barium cations. The pH dependent drug release was evident with ciprofloxacin and diclofenac sodium diffusing from the fibre at pH 4.0 compared to pH 6.8, where the fibre swelled and eroded resulting in zero-order drug release. Agar diffusion studies followed by minimum inhibitory assays were conducted to determine the antimicrobial activity of the device against Escherichia coli, Enterococcus faecalis, and Streptococcus mutans. The antimicrobial activity of the PFD was confirmed in both test assays against all test pathogens. The MIC ranges at pH 4.0 for E. coli, E. faecalis, and S. mutans were 0.5-0.8, 0.4-1.1, and 0.7-2.1 μg/mL, respectively. At pH 6.8, similar efficacies (0.3-0.5 μg/mL for E. coli and E. faecalis and 0.6-1.0 μg/mL for S. mutans) were observed. The effect of varying the plasticizer and crosslinking ion concentration on drug release profile of the fibers was further elucidated and conceptualized using molecular mechanics energy relationships (MMER) and by exploring the spatial disposition of geometrically minimized molecular conformations.
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Wet spun microfibers: potential in the design of controlled-release scaffolds? Ther Deliv 2013; 4:1075-7. [DOI: 10.4155/tde.13.73] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Dave R, Jayaraj P, Ajikumar PK, Joshi H, Mathews T, Venugopalan VP. Endogenously triggered electrospun fibres for tailored and controlled antibiotic release. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2013; 24:1305-19. [DOI: 10.1080/09205063.2012.757725] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Rachna Dave
- a Biofouling and Biofilm Processes Section, Water and Steam Chemistry Division , Bhabha Atomic Research Centre Facilities , Kalpakkam , 603 102 , India
| | - Prithi Jayaraj
- b Thin Films and Coatings Section, Surface and Nanoscience Division, Materials Science Group , Indira Gandhi Centre for Atomic Research , Kalpakkam , 603 102 , India
| | - Puthuparampil K. Ajikumar
- c Nanomaterials & Characterization Section, Surface & Nanoscience Division, Materials Science Group , Indira Gandhi Centre for Atomic Research , Kalpakkam , 603 102 , India
| | - Hiren Joshi
- a Biofouling and Biofilm Processes Section, Water and Steam Chemistry Division , Bhabha Atomic Research Centre Facilities , Kalpakkam , 603 102 , India
| | - Tom Mathews
- b Thin Films and Coatings Section, Surface and Nanoscience Division, Materials Science Group , Indira Gandhi Centre for Atomic Research , Kalpakkam , 603 102 , India
| | - Vayalam P. Venugopalan
- a Biofouling and Biofilm Processes Section, Water and Steam Chemistry Division , Bhabha Atomic Research Centre Facilities , Kalpakkam , 603 102 , India
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Effects of protein molecular weight on the intrinsic material properties and release kinetics of wet spun polymeric microfiber delivery systems. Acta Biomater 2013; 9:4569-78. [PMID: 22902813 DOI: 10.1016/j.actbio.2012.08.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Revised: 08/01/2012] [Accepted: 08/08/2012] [Indexed: 11/23/2022]
Abstract
Wet spun microfibers have great potential for the design of multifunctional controlled release scaffolds. Understanding aspects of drug delivery and mechanical strength, specific to protein molecular weight, may aid in the optimization and development of wet spun fiber platforms. This study investigated the intrinsic material properties and release kinetics of poly(l-lactic acid) (PLLA) and poly(lactic-co-glycolic acid) (PLGA) wet spun microfibers encapsulating proteins with varying molecular weights. A cryogenic emulsion technique developed in our laboratory was used to encapsulate insulin (5.8 kDa), lysozyme (14.3 kDa) and bovine serum albumin (BSA, 66.0 kDa) within wet spun microfibers (~100 μm). Protein loading was found to significantly influence mechanical strength and drug release kinetics of PLGA and PLLA microfibers in a molecular-weight-dependent manner. BSA encapsulation resulted in the most significant decrease in strength and ductility for both PLGA and PLLA microfibers. Interestingly, BSA-loaded PLGA microfibers had a twofold increase (8±2 MPa to 16±1 MPa) in tensile strength and a fourfold increase (3±1% to 12±6%) in elongation until failure in comparison to PLLA microfibers. PLGA and PLLA microfibers exhibited prolonged protein release up to 63 days in vitro. Further analysis with the Korsmeyer-Peppas kinetic model determined that the mechanism of protein release was dependent on Fickian diffusion. These results emphasize the critical role protein molecular weight has on the properties of wet spun filaments, highlighting the importance of designing small molecular analogues to replace growth factors with large molecular weights.
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Dang NTT, Turner MS, Coombes AGA. Development of intra-vaginal matrices from polycaprolactone for sustained release of antimicrobial agents. J Biomater Appl 2012; 28:74-83. [DOI: 10.1177/0885328212437393] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Microporous poly(ɛ-caprolactone) matrices were loaded with an antibacterial agent, ciprofloxacin and an antifungal agent, miconazole nitrate, respectively, for investigations of their potential as controlled vaginal delivery devices. Ciprofloxacin loadings up to 15% w/w could be obtained by increasing the drug content of the poly(ɛ-caprolactone) solution, while the actual loadings of miconazole were much lower (1–3% w/w) due to drug partition into methanol during the solvent extraction. The kinetics of ciprofloxacin release in simulated vaginal fluid at 37℃ were characterised by a small burst release phase in the first 24 h, low drug release up to 7 days (10%) and gradual release of up to 80% of the drug content by day 30. Meanwhile, the release kinetics of miconazole-loaded matrices could be effectively described by the Higuchi model with 100% drug release from the highest loaded matrices (3.2% w/w) in 13 days. Ciprofloxacin or miconazole released over 30 and 13 days, respectively, from poly(ɛ-caprolactone) matrices into simulated vaginal fluid retained high levels of antimicrobial activity in excess of 80% of the activity of the free drug. This study confirms the potential of poly(ɛ-caprolactone) matrices for delivering antimicrobial agents in the form of an intra-vaginal device.
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Affiliation(s)
- Nhung TT Dang
- The University of Queensland, Pharmacy Australia Centre of Excellence, 20 Cornwall street, Wooloongabba, QLD, Australia
| | - Mark S Turner
- The University of Queensland, School of Agriculture and Food Sciences, St Lucia, QLD, Australia
| | - Allan GA Coombes
- The University of Queensland, Pharmacy Australia Centre of Excellence, 20 Cornwall street, Wooloongabba, QLD, Australia
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Lavin DM, Stefani RM, Zhang L, Furtado S, Hopkins RA, Mathiowitz E. Multifunctional polymeric microfibers with prolonged drug delivery and structural support capabilities. Acta Biomater 2012; 8:1891-900. [PMID: 22326788 DOI: 10.1016/j.actbio.2012.01.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2011] [Revised: 01/17/2012] [Accepted: 01/17/2012] [Indexed: 11/25/2022]
Abstract
The strength and stability of hybrid fiber delivery systems, ones that perform a mechanical function and simultaneously deliver drug, are critical in the design of surgically implantable constructs. We report the fabrication of drug-eluting microfibers where drug loading and processing conditions alone increase microfiber strength and stability partially due to solvent-induced crystallization. Poly(L-lactic acid) microfibers of 64±7 μm diameter were wet spun by phase inversion. Encapsulation of a model hydrophobic anti-inflammatory drug, dexamethasone, at high loading provided stability to microfibers which maintained linear cumulative release kinetics up to 8 weeks in vitro. In our wet spinning process, all microfibers had increased crystallinity (13-17%) in comparison to unprocessed polymer without any mechanical stretching. Moreover, microfibers with the highest drug loading retained 97% of initial tensile strength and were statistically stronger than all other microfiber formulations, including control fibers without drug. Results indicate that the encapsulation of small hydrophobic molecules (<400 Da) may increase the mechanical integrity of microfilaments whose crystallinity is also increased as a result of the process. Multifunctional drug-eluting microfibers can provide an exciting new opportunity to design novel biomaterials with mechanical stability and controlled release of a variety of therapeutics with micron-scale accuracy.
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Poly-є-caprolactone based formulations for drug delivery and tissue engineering: A review. J Control Release 2011; 158:15-33. [PMID: 21963774 DOI: 10.1016/j.jconrel.2011.09.064] [Citation(s) in RCA: 603] [Impact Index Per Article: 46.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2011] [Accepted: 08/07/2011] [Indexed: 11/20/2022]
Abstract
Biodegradable polymer based novel drug delivery systems have provided many avenues to improve therapeutic efficacy and pharmacokinetic parameters of medicinal entities. Among synthetic biodegradable polymer, poly-є-caprolactone (PCL) is a polymer with very low glass transition temperature and melting point. Owing to its amicable nature and tailorable properties it has been trialed in almost all novel drug delivery systems and tissue engineering application in use/investigated so far. This review aims to provide an up to date of drugs incorporated in different PCL based formulations, their purpose and brief outcomes. Demonstrated PCL formulations with or without drugs, intended for drug delivery and/or tissue engineering application such as microsphere, nanoparticles, scaffolds, films, fibers, micelles etc. are categorized based on method of preparation.
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Puppi D, Dinucci D, Bartoli C, Mota C, Migone C, Dini F, Barsotti G, Carlucci F, Chiellini F. Development of 3D wet-spun polymeric scaffolds loaded with antimicrobial agents for bone engineering. J BIOACT COMPAT POL 2011. [DOI: 10.1177/0883911511415918] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Three-dimensional wet-spun microfibrous meshes of a star poly(∈-caprolactone) were developed as potential scaffolds endowed with antimicrobial activity. The in vitro release kinetics of the meshes, under physiological conditions, was initially fast and then a sustained release for more than one month was observed. Cell cultures of a murine pre-osteoblast cell line showed good cell viability and adhesion on the wet-spun star poly(∈-caprolactone) fiber scaffolds. These promising results indicate a potential application of the developed meshes as engineered bone scaffolds with antimicrobial activity.
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Affiliation(s)
- Dario Puppi
- Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Applications (BIOlab), via Vecchia Livornese 1291, 56010 San Piero a Grado (Pi), Department of Chemistry and Industrial Chemistry, University of Pisa, Italy
| | - Dinuccio Dinucci
- Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Applications (BIOlab), via Vecchia Livornese 1291, 56010 San Piero a Grado (Pi), Department of Chemistry and Industrial Chemistry, University of Pisa, Italy
| | - Cristina Bartoli
- Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Applications (BIOlab), via Vecchia Livornese 1291, 56010 San Piero a Grado (Pi), Department of Chemistry and Industrial Chemistry, University of Pisa, Italy
| | - Carlos Mota
- Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Applications (BIOlab), via Vecchia Livornese 1291, 56010 San Piero a Grado (Pi), Department of Chemistry and Industrial Chemistry, University of Pisa, Italy
| | - Chiara Migone
- Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Applications (BIOlab), via Vecchia Livornese 1291, 56010 San Piero a Grado (Pi), Department of Chemistry and Industrial Chemistry, University of Pisa, Italy
| | - Francesca Dini
- Department of Veterinary Clinic, University of Pisa, Via Livornese, 56010 S. Piero a Grado (Pi), Italy
| | - Giovanni Barsotti
- Department of Veterinary Clinic, University of Pisa, Via Livornese, 56010 S. Piero a Grado (Pi), Italy
| | - Fabio Carlucci
- Department of Veterinary Clinic, University of Pisa, Via Livornese, 56010 S. Piero a Grado (Pi), Italy
| | - Federica Chiellini
- Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Applications (BIOlab), via Vecchia Livornese 1291, 56010 San Piero a Grado (Pi), Department of Chemistry and Industrial Chemistry, University of Pisa, Italy,
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Optimized electro- and wet-spinning techniques for the production of polymeric fibrous scaffolds loaded with bisphosphonate and hydroxyapatite. J Tissue Eng Regen Med 2011; 5:253-63. [DOI: 10.1002/term.310] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Chen J, Luo Y, Hong L, Ling Y, Pang J, Fang Y, Wei K, Gao X. Synthesis, characterization and osteoconductivity properties of bone fillers based on alendronate-loaded poly(ε-caprolactone)/hydroxyapatite microspheres. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2011; 22:547-555. [PMID: 21318627 DOI: 10.1007/s10856-011-4232-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2010] [Accepted: 01/10/2011] [Indexed: 05/30/2023]
Abstract
A superior drug controlled release system capable of achieving efficient osteogenesis is in imperative demand because of limited bone substitute tissue for the treatment of bone defect. In the present study, we investigated the potential of using poly(ε-caprolactone)-hydroxyapatite (PCL-HA) composite microspheres as an injectable bone repair vehicle by controlled release of alendronate (AL), a medicine that belongs to the bisphosphonates family. The PCL/HA-AL microspheres were prepared with solid/oil/water emulsion technique, which included two processes: (1) AL was loaded on the hydroxyapatite nanoparticles; (2) the HA-AL complex was built in the PCL matrix. The spherical PCL/HA-AL microspheres were characterized with its significantly improved encapsulation efficiency of hydrophilic AL and better sustained release. Human bone mesenchymal stem cells (hMSCs) were cultured on the surface of these microspheres and exhibited high proliferative profile. Specifically, in osteogenic medium, hMSCs on the surface of PCL/HA-AL microspheres displayed superior osteogenic differentiation which was verified by alkaline phosphatase activity assay. In conclusion, by presenting strong osteogenic commitment of hMSCs in vitro, the PCL/HA-AL microspheres have the potential to be used as an injectable vehicle for local therapy of bone defect.
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Affiliation(s)
- Jianhong Chen
- Department of Stomatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
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Waknis V, Jonnalagadda S. Novel poly-DL-lactide-polycaprolactone copolymer based flexible drug delivery system for sustained release of ciprofloxacin. Drug Deliv 2010; 18:236-45. [DOI: 10.3109/10717544.2010.528070] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Xue W, Bandyopadhyay A, Bose S. Polycaprolactone coated porous tricalcium phosphate scaffolds for controlled release of protein for tissue engineering. J Biomed Mater Res B Appl Biomater 2009; 91:831-838. [PMID: 19572301 PMCID: PMC3058418 DOI: 10.1002/jbm.b.31464] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Polycaprolactone (PCL) was coated on porous tricalcium phosphate (TCP) scaffolds to achieve controlled protein delivery. Porous TCP scaffolds were fabricated using reticulated polyurethane foam as sacrificial scaffold with a porosity of 70-90 vol %. PCL was coated on sintered porous TCP scaffolds by dipping-drying process. The compressive strength of TCP scaffolds increased significantly after PCL coating. The highest strength of 2.41 MPa at a porosity of 70% was obtained for the TCP scaffold coated with 5% PCL solution. Model protein bovine serum albumin (BSA) was encapsulated efficiently within the PCL coating. The amount of BSA encapsulation was controlled by varying proteins' composition in the PCL coating. The FTIR analysis confirmed that BSA retained its structural conformation and did not show significant denaturization during PCL coating. The release kinetics in phosphate buffer solution indicated that the protein release was controlled and sustained, and primarily dependant on protein concentration encapsulated in the PCL coating.
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Kumar C, Himabindu M, Jetty A. Microbial Biosynthesis and Applications of Gentamicin: A Critical Appraisal. Crit Rev Biotechnol 2008; 28:173-212. [DOI: 10.1080/07388550802262197] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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