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Nwazojie CC, Obayemi JD, Salifu AA, Borbor-Sawyer SM, Uzonwanne VO, Onyekanne CE, Akpan UM, Onwudiwe KC, Oparah JC, Odusanya OS, Soboyejo WO. Targeted drug-loaded PLGA-PCL microspheres for specific and localized treatment of triple negative breast cancer. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2023; 34:41. [PMID: 37530973 PMCID: PMC10397127 DOI: 10.1007/s10856-023-06738-y] [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: 11/06/2022] [Accepted: 07/01/2023] [Indexed: 08/03/2023]
Abstract
The paper presents the results of the experimental and analytical study of targeted drug-loaded polymer-based microspheres made from blend polymer of polylactic-co-glycolic acid and polycaprolactone (PLGA-PCL) for targeted and localized cancer drug delivery. In vitro sustained release with detailed thermodynamically driven drug release kinetics, over a period of three months using encapsulated targeted drugs (prodigiosin-EphA2 or paclitaxel-EphA2) and control drugs [Prodigiosin (PGS), and paclitaxel (PTX)] were studied. Results from in vitro study showed a sustained and localized drug release that is well-characterized by non-Fickian Korsmeyer-Peppas kinetics model over the range of temperatures of 37 °C (body temperature), 41 °C, and 44 °C (hyperthermic temperatures). The in vitro alamar blue, and flow cytometry assays in the presence of the different drug-loaded polymer formulations resulted to cell death and cytotoxicity that was evidence through cell inhibition and late apoptosis on triple negative breast cancer (TNBC) cells (MDA-MB 231). In vivo studies carried out on groups of 4-week-old athymic nude mice that were induced with subcutaneous TNBC, showed that the localized release of the EphA2-conjugated drugs was effective in complete elimination of residual tumor after local surgical resection. Finally, ex vivo histopathological analysis carried out on the euthanized mice revealed no cytotoxicity and absence of breast cancer metastases in the liver, kidney, and lungs 12 weeks after treatment. The implications of the results are then discussed for the development of encapsulated EphA2-conjugated drugs formulation in the specific targeting, localized, and sustain drug release for the elimination of local recurred TNBC tumors after surgical resection.
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Affiliation(s)
- Chukwudalu C Nwazojie
- Department of Materials Science and Engineering, African University of Science and Technology, Km 10 Airport Road, Abuja, Nigeria
- Department of Mechanical and Materials Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
| | - John D Obayemi
- Department of Mechanical and Materials Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
- Department of Biomedical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01605, USA
| | - Ali A Salifu
- Department of Mechanical and Materials Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
- Department of Biomedical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01605, USA
- Department of Engineering, Boston College, 140 Commonwealth Avenue, Chestnut Hill, USA
| | - Sandra M Borbor-Sawyer
- Department of Materials Science and Engineering, African University of Science and Technology, Km 10 Airport Road, Abuja, Nigeria
- Department of Mechanical and Materials Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
- Department of Biology, State University of New York, Buffalo State University, Buffalo, USA
| | - Vanessa O Uzonwanne
- Department of Mechanical and Materials Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
- Department of Engineering, Boston College, 140 Commonwealth Avenue, Chestnut Hill, USA
| | - Chinyerem E Onyekanne
- Department of Materials Science and Engineering, African University of Science and Technology, Km 10 Airport Road, Abuja, Nigeria
- Department of Mechanical and Materials Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
| | - Udom M Akpan
- Department of Materials Science and Engineering, African University of Science and Technology, Km 10 Airport Road, Abuja, Nigeria
- Department of Mechanical and Materials Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
| | - Killian C Onwudiwe
- Department of Materials Science and Engineering, African University of Science and Technology, Km 10 Airport Road, Abuja, Nigeria
- Department of Mechanical and Materials Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
| | - Josephine C Oparah
- Department of Materials Science and Engineering, African University of Science and Technology, Km 10 Airport Road, Abuja, Nigeria
- Department of Mechanical and Materials Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
| | - Olushola S Odusanya
- Biotechnology and Genetic Engineering Advanced Laboratory, Sheda Science and Technology Complex (SHESTCO), Abuja, Nigeria
| | - Winston O Soboyejo
- Department of Materials Science and Engineering, African University of Science and Technology, Km 10 Airport Road, Abuja, Nigeria.
- Department of Mechanical and Materials Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA.
- Department of Biomedical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01605, USA.
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Nakmode DD, Day CM, Song Y, Garg S. The Management of Parkinson's Disease: An Overview of the Current Advancements in Drug Delivery Systems. Pharmaceutics 2023; 15:pharmaceutics15051503. [PMID: 37242745 DOI: 10.3390/pharmaceutics15051503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/31/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Parkinson's disease (PD) has significantly affected a large proportion of the elderly population worldwide. According to the World Health Organization, approximately 8.5 million people worldwide are living with PD. In the United States, an estimated one million people are living with PD, with approximately 60,000 new cases diagnosed every year. Conventional therapies available for Parkinson's disease are associated with limitations such as the wearing-off effect, on-off period, episodes of motor freezing, and dyskinesia. In this review, a comprehensive overview of the latest advances in DDSs used to reduce the limitations of current therapies will be presented, and both their promising features and drawbacks will be discussed. We are also particularly interested in the technical properties, mechanism, and release patterns of incorporated drugs, as well as nanoscale delivery strategies to overcome the blood-brain barrier.
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Affiliation(s)
- Deepa D Nakmode
- Centre for Pharmaceutical Innovation, University of South Australia, North Terrace, Adelaide, SA 5000, Australia
| | - Candace M Day
- Centre for Pharmaceutical Innovation, University of South Australia, North Terrace, Adelaide, SA 5000, Australia
| | - Yunmei Song
- Centre for Pharmaceutical Innovation, University of South Australia, North Terrace, Adelaide, SA 5000, Australia
| | - Sanjay Garg
- Centre for Pharmaceutical Innovation, University of South Australia, North Terrace, Adelaide, SA 5000, Australia
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3
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Strzelecka K, Piotrowska U, Sobczak M, Oledzka E. The Advancement of Biodegradable Polyesters as Delivery Systems for Camptothecin and Its Analogues-A Status Report. Int J Mol Sci 2023; 24:ijms24021053. [PMID: 36674567 PMCID: PMC9866533 DOI: 10.3390/ijms24021053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/29/2022] [Accepted: 01/03/2023] [Indexed: 01/06/2023] Open
Abstract
Camptothecin (CPT) has demonstrated antitumor activity in lung, ovarian, breast, pancreas, and stomach cancers. However, this drug, like many other potent anticancer agents, is extremely water-insoluble. Furthermore, pharmacology studies have revealed that prolonged schedules must be administered continuously. For these reasons, several of its water-soluble analogues, prodrugs, and macromolecular conjugates have been synthesized, and various formulation approaches have been investigated. Biodegradable polyesters have gained popularity in cancer treatment in recent years. A number of biodegradable polymeric drug delivery systems (DDSs), designed for localized and systemic administration of therapeutic agents, as well as tumor-targeting macromolecules, have entered clinical trials, demonstrating the importance of biodegradable polyesters in cancer therapy. Biodegradable polyester-based DDSs have the potential to deliver the payload to the target while also increasing drug availability at intended site. The systemic toxicity and serious side-effects associated with conventional cancer therapies can be significantly reduced with targeted polymeric systems. This review elaborates on the use of biodegradable polyesters in the delivery of CPT and its analogues. The design of various DDSs based on biodegradable polyesters has been described, with the drug either adsorbed on the polymer's surface or encapsulated within its macrostructure, as well as those in which a hydrolyzed chemical bond is formed between the active substance and the polymer chain. The data related to the type of DDSs, the kind of linkage, and the details of in vitro and in vivo studies are included.
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Affiliation(s)
- Katarzyna Strzelecka
- Department of Analytical Chemistry and Biomaterials, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha Str., 02-097 Warsaw, Poland
| | - Urszula Piotrowska
- Department of Analytical Chemistry and Biomaterials, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha Str., 02-097 Warsaw, Poland
| | - Marcin Sobczak
- Department of Analytical Chemistry and Biomaterials, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha Str., 02-097 Warsaw, Poland
- Military Institute of Hygiene and Epidemiology, 4 Kozielska Str., 01-163 Warsaw, Poland
| | - Ewa Oledzka
- Department of Analytical Chemistry and Biomaterials, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha Str., 02-097 Warsaw, Poland
- Correspondence: ; Tel.: +48-22-572-07-55
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Mundel R, Thakur T, Chatterjee M. Emerging uses of PLA-PEG copolymer in cancer drug delivery. 3 Biotech 2022; 12:41. [PMID: 35070631 PMCID: PMC8748584 DOI: 10.1007/s13205-021-03105-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 12/28/2021] [Indexed: 02/03/2023] Open
Abstract
Traditional therapies need high systematic dosages that not only destroys cancerous cells but also healthy cells. To overcome this problem recent advancement in nanotechnology specifically in nanomaterials has been extensively done for various biological applications, such as targeted drug delivery. Nanotechnology, as a frontier science, has the potential to break down all the obstacles to be more effective and secure drug delivery system. It is possible to develop nanopolymer based drug carrier that can target drugs with extreme accuracy. Polymers can advance drug delivery technologies by allowing controlled release of therapeutic drugs in stable amounts over long duration of time. For controlled drug delivery, biodegradable synthetic polymers have various benefits over non-biodegradable polymers. Biodegradable polymer either are less toxic or non-toxic. Polylactic Acid (PLA) is one of the most remarkable amphipathic polymers which make it one of the most suitable materials for polymeric micelles. Amphiphilic nanomaterial, such as Polyethylene Glycol (PEG), is one of the most promising carrier for tumor targeting. PLA-PEG as a copolymer has been generally utilized as drug delivery system for the various types of cancer. Chemotherapeutic drugs are stacked into PLA-PEG copolymer and as a result their duration time delays, hence medications arrive at specific tumor site.
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Affiliation(s)
- Rohit Mundel
- Biotechnology Branch, University Institute of Engineering and Technology, Panjab University, Sector-25, South Campus, Chandigarh, 160014 India
| | - Tanya Thakur
- Biotechnology Branch, University Institute of Engineering and Technology, Panjab University, Sector-25, South Campus, Chandigarh, 160014 India
| | - Mary Chatterjee
- Biotechnology Branch, University Institute of Engineering and Technology, Panjab University, Sector-25, South Campus, Chandigarh, 160014 India
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Journey to the Market: The Evolution of Biodegradable Drug Delivery Systems. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12020935] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Biodegradable polymers have been used as carriers in drug delivery systems for more than four decades. Early work used crude natural materials for particle fabrication, whereas more recent work has utilized synthetic polymers. Applications include the macroscale, the microscale, and the nanoscale. Since pioneering work in the 1960’s, an array of products that use biodegradable polymers to encapsulate the desired drug payload have been approved for human use by international regulatory agencies. The commercial success of these products has led to further research in the field aimed at bringing forward new formulation types for improved delivery of various small molecule and biologic drugs. Here, we review recent advances in the development of these materials and we provide insight on their drug delivery application. We also address payload encapsulation and drug release mechanisms from biodegradable formulations and their application in approved therapeutic products.
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Chung YH, Church D, Koellhoffer EC, Osota E, Shukla S, Rybicki EP, Pokorski JK, Steinmetz NF. Integrating plant molecular farming and materials research for next-generation vaccines. NATURE REVIEWS. MATERIALS 2021; 7:372-388. [PMID: 34900343 DOI: 10.1038/s41578-021-00399-395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Accepted: 10/18/2021] [Indexed: 05/28/2023]
Abstract
Biologics - medications derived from a biological source - are increasingly used as pharmaceuticals, for example, as vaccines. Biologics are usually produced in bacterial, mammalian or insect cells. Alternatively, plant molecular farming, that is, the manufacture of biologics in plant cells, transgenic plants and algae, offers a cheaper and easily adaptable strategy for the production of biologics, in particular, in low-resource settings. In this Review, we discuss current vaccination challenges, such as cold chain requirements, and highlight how plant molecular farming in combination with advanced materials can be applied to address these challenges. The production of plant viruses and virus-based nanotechnologies in plants enables low-cost and regional fabrication of thermostable vaccines. We also highlight key new vaccine delivery technologies, including microneedle patches and material platforms for intranasal and oral delivery. Finally, we provide an outlook of future possibilities for plant molecular farming of next-generation vaccines and biologics.
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Affiliation(s)
- Young Hun Chung
- Department of Bioengineering, University of California, San Diego, La Jolla, CA USA
| | - Derek Church
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA USA
| | - Edward C Koellhoffer
- Department of Radiology, University of California, San Diego Health, La Jolla, CA USA
| | - Elizabeth Osota
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA USA
- Biomedical Science Program, University of California, San Diego, La Jolla, CA USA
| | - Sourabh Shukla
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA USA
| | - Edward P Rybicki
- Department of Molecular and Cell Biology, University of Cape Town, Cape Town, South Africa
| | - Jonathan K Pokorski
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA USA
- Institute for Materials Discovery and Design, University of California, San Diego, La Jolla, CA USA
- Center for Nano-Immuno Engineering, University of California, San Diego, La Jolla, CA USA
| | - Nicole F Steinmetz
- Department of Bioengineering, University of California, San Diego, La Jolla, CA USA
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA USA
- Department of Radiology, University of California, San Diego Health, La Jolla, CA USA
- Institute for Materials Discovery and Design, University of California, San Diego, La Jolla, CA USA
- Center for Nano-Immuno Engineering, University of California, San Diego, La Jolla, CA USA
- Moores Cancer Center, University of California, San Diego, La Jolla, CA USA
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7
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Chung YH, Church D, Koellhoffer EC, Osota E, Shukla S, Rybicki EP, Pokorski JK, Steinmetz NF. Integrating plant molecular farming and materials research for next-generation vaccines. NATURE REVIEWS. MATERIALS 2021; 7:372-388. [PMID: 34900343 PMCID: PMC8647509 DOI: 10.1038/s41578-021-00399-5] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/18/2021] [Indexed: 05/04/2023]
Abstract
Biologics - medications derived from a biological source - are increasingly used as pharmaceuticals, for example, as vaccines. Biologics are usually produced in bacterial, mammalian or insect cells. Alternatively, plant molecular farming, that is, the manufacture of biologics in plant cells, transgenic plants and algae, offers a cheaper and easily adaptable strategy for the production of biologics, in particular, in low-resource settings. In this Review, we discuss current vaccination challenges, such as cold chain requirements, and highlight how plant molecular farming in combination with advanced materials can be applied to address these challenges. The production of plant viruses and virus-based nanotechnologies in plants enables low-cost and regional fabrication of thermostable vaccines. We also highlight key new vaccine delivery technologies, including microneedle patches and material platforms for intranasal and oral delivery. Finally, we provide an outlook of future possibilities for plant molecular farming of next-generation vaccines and biologics.
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Affiliation(s)
- Young Hun Chung
- Department of Bioengineering, University of California, San Diego, La Jolla, CA USA
| | - Derek Church
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA USA
| | - Edward C. Koellhoffer
- Department of Radiology, University of California, San Diego Health, La Jolla, CA USA
| | - Elizabeth Osota
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA USA
- Biomedical Science Program, University of California, San Diego, La Jolla, CA USA
| | - Sourabh Shukla
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA USA
| | - Edward P. Rybicki
- Department of Molecular and Cell Biology, University of Cape Town, Cape Town, South Africa
| | - Jonathan K. Pokorski
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA USA
- Institute for Materials Discovery and Design, University of California, San Diego, La Jolla, CA USA
- Center for Nano-Immuno Engineering, University of California, San Diego, La Jolla, CA USA
| | - Nicole F. Steinmetz
- Department of Bioengineering, University of California, San Diego, La Jolla, CA USA
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA USA
- Department of Radiology, University of California, San Diego Health, La Jolla, CA USA
- Institute for Materials Discovery and Design, University of California, San Diego, La Jolla, CA USA
- Center for Nano-Immuno Engineering, University of California, San Diego, La Jolla, CA USA
- Moores Cancer Center, University of California, San Diego, La Jolla, CA USA
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Hazra RS, Dutta D, Mamnoon B, Nair G, Knight A, Mallik S, Ganai S, Reindl K, Jiang L, Quadir M. Polymeric Composite Matrix with High Biobased Content as Pharmaceutically Relevant Molecular Encapsulation and Release Platform. ACS APPLIED MATERIALS & INTERFACES 2021; 13:40229-40248. [PMID: 34423963 DOI: 10.1021/acsami.1c03805] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Drug delivery systems (DDS) that can temporally control the rate and extent of release of therapeutically active molecules find applications in many clinical settings, ranging from infection control to cancer therapy. With an aim to design a locally implantable, controlled-release DDS, we demonstrated the feasibility of using cellulose nanocrystal (CNC)-reinforced poly (l-lactic acid) (PLA) composite beads. The performance of the platform was evaluated using doxorubicin (DOX) as a model drug for applications in triple-negative breast cancer. A facile, nonsolvent-induced phase separation (NIPS) method was adopted to form composite beads. We observed that CNC loading within these beads played a critical role in the mechanical stability, porosity, water uptake, diffusion, release, and pharmacological activity of the drug from the delivery system. When loaded with DOX, composite beads significantly controlled the release of the drug in a pH-dependent pattern. For example, PLA/CNC beads containing 37.5 wt % of CNCs showed a biphasic release of DOX, where 41 and 82% of the loaded drug were released at pH 7.4 and pH 5.5, respectively, over 7 days. Drug release followed Korsmeyer's kinetics, indicating that the release mechanism was mostly diffusion and swelling-controlled. We showed that DOX released from drug-loaded PLA/CNC composite beads locally suppressed the growth and proliferation of triple-negative breast cancer cells, MBA-MB-231, via the apoptotic pathway. The efficacy of the DDS was evaluated in human tissue explants. We envision that such systems will find applications for designing biobased platforms with programmed stability and drug delivery functions.
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Affiliation(s)
- Raj Shankar Hazra
- Department of Mechanical Engineering, North Dakota State University, Fargo, North Dakota 58108, United States
- Materials and Nanotechnology Program, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Debasmita Dutta
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Babak Mamnoon
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Gauthami Nair
- Department of Biological Sciences, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Austin Knight
- Department of Mechanical Engineering, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Sanku Mallik
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Sabha Ganai
- Division of Surgical Oncology, Sanford Research, Fargo, North Dakota 58122, United States
| | - Katie Reindl
- Department of Biological Sciences, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Long Jiang
- Department of Mechanical Engineering, North Dakota State University, Fargo, North Dakota 58108, United States
- Materials and Nanotechnology Program, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Mohiuddin Quadir
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58108, United States
- Materials and Nanotechnology Program, North Dakota State University, Fargo, North Dakota 58108, United States
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PLGA/PLA-Based Long-Acting Injectable Depot Microspheres in Clinical Use: Production and Characterization Overview for Protein/Peptide Delivery. Int J Mol Sci 2021; 22:ijms22168884. [PMID: 34445587 PMCID: PMC8396256 DOI: 10.3390/ijms22168884] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/14/2021] [Accepted: 08/16/2021] [Indexed: 12/20/2022] Open
Abstract
Over the past few decades, long acting injectable (LAI) depots of polylactide-co-glycolide (PLGA) or polylactic acid (PLA) based microspheres have been developed for controlled drug delivery to reduce dosing frequency and to improve the therapeutic effects. Biopharmaceuticals such as proteins and peptides are encapsulated in the microspheres to increase their bioavailability and provide a long release period (days or months) with constant drug plasma concentration. The biodegradable and biocompatible properties of PLGA/PLA polymers, including but not limited to molecular weight, end group, lactide to glycolide ratio, and minor manufacturing changes, could greatly affect the quality attributes of microsphere formulations such as release profile, size, encapsulation efficiency, and bioactivity of biopharmaceuticals. Besides, the encapsulated proteins/peptides are susceptible to harsh processing conditions associated with microsphere fabrication methods, including exposure to organic solvent, shear stress, and temperature fluctuations. The protein/peptide containing LAI microspheres in clinical use is typically prepared by double emulsion, coacervation, and spray drying techniques. The purpose of this review is to provide an overview of the formulation attributes and conventional manufacturing techniques of LAI microspheres that are currently in clinical use for protein/peptides. Furthermore, the physicochemical characteristics of the microsphere formulations are deliberated.
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Rivelli GG, Perez AC, Silva PHR, Gomes ECDL, Moreira CPDS, Tamashiro E, Valera FCP, Anselmo-Lima WT, Pianetti GA, Silva-Cunha A. Biodegradable Electrospun Nanofibers: A New Approach For Rhinosinusitis Treatment. Eur J Pharm Sci 2021; 163:105852. [PMID: 33862240 DOI: 10.1016/j.ejps.2021.105852] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/10/2021] [Accepted: 04/12/2021] [Indexed: 12/18/2022]
Abstract
Biodegradable polymeric nanofibers containing mometasone furoate can be a new approach to drug delivery to treat chronic rhinosinusitis, providing controlled steroid delivery to the sinonasal mucosa. This study aimed to develop biodegradable polymeric nanofibers and explore the safety of these fibers in an in vivo rabbit model. The nanofibers' development has been optimized using the Response Surface Methodology (RSM) obtained with Design of Experiments (DoE) with the best conditions related to the polymer concentration and proportion of solvents used in the electrospinning process. The nanofibers were prepared, operating as a determinant factor, the nanofiber formation and its diameter evaluated by Scanning Electron Microscopy (SEM). The ideal system obtained was assessed by SEM, thermogravimetric analysis (TGA), X-ray diffraction (XRD), differential scanning calorimetry (DSC), assay, and drug delivery by UHLPC validated method. The results showed that the drug is dispersed in the polymeric matrix, is stable, and showed sustained release kinetics in a bio-relevant nasal environment (Higuchi model kinetics). In vivo tests, the level of inflammation at the animals' mucosa which received the nanofiber with the mometasone furoate was lower than those that received the nanofibers without the drug (α = 0.05). Histopathology analysis showed that the polymeric nanofibers containing mometasone are safe when topically applied on the sinonasal mucosa, opening a new horizon in chronic rhinosinusitis treatment.
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Affiliation(s)
- Graziella Gomes Rivelli
- Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, MG. 31270-901, Brazil
| | - André Coura Perez
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP. 14049-900, Brazil
| | | | | | | | - Edwin Tamashiro
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP. 14049-900, Brazil
| | | | | | - Gérson Antônio Pianetti
- Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, MG. 31270-901, Brazil
| | - Armando Silva-Cunha
- Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, MG. 31270-901, Brazil.
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Davis MS, Marrero-Berrios I, Perez XI, Radhakrishnan P, Manchikalapati D, Ahmed K, Kamath H, Schloss RS, Yarmush J. A controlled release bupivacaine-alginate construct: Effect on chondrocyte hypertrophy conversion. OSTEOARTHRITIS AND CARTILAGE OPEN 2020; 2. [PMID: 35392127 PMCID: PMC8986124 DOI: 10.1016/j.ocarto.2020.100125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Objective: Osteoarthritis is a degenerative disease of the joint, affecting over 30 million people in the US1. A key characteristic of OA is chondrocyte hypertrophy, characterized by chondrocyte changes to a more rounded and osteoblastic phenotype, characterized by increased IL-6 and IL-8 secretion2. While there are no cures for OA, treatments focus on mitigating pain and inflammation, the two main symptoms of OA. However, the analgesics, NSAIDS and corticosteroids commonly used, do not target regeneration and have negative side effects. Local anesthetics (LA) can be used as a pain management alternative but are usually short lasting and therefore, not suited for chronic conditions such as OA. Our engineered sustained release local anesthetic construct successfully delivers bupivacaine for an extended period of time3–5. This study is designed to evaluate the effect of the LA system on chondrocytes in an inflammatory OA-like environment. Design: Chondrocytes were cultured with bolus, liposomal, or construct LA and either untreated or treated with TNF-α and IL-1α for 24 hrs, 48 hrs, or 96 hrs. Chondrocyte viability, interleukin-8 (IL-8), interleukin-6 (IL-6), collagenase activity and proteoglycan deposition were assessed. Results: In the presence of the engineered construct, the chondrocytes retained viability and regenerative function. Moreover, the construct allowed for higher initial doses to be used, which promoted more regeneration and decreased inflammation without compromising cellular viability. Conclusions: The construct promotes a less hypertrophic chondrocyte environment while promoting a more anti-inflammatory environment. These two factors are consistent with a less OA progressive environment when using the engineered construct, compared to bolus LA.
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Affiliation(s)
- Mollie S Davis
- Rutgers University, Department of Biomedical Engineering, Piscataway, NJ, USA
| | | | - Xiomara I Perez
- Rutgers University, Department of Biomedical Engineering, Piscataway, NJ, USA
| | | | | | - Khaja Ahmed
- Department of Anesthesiology, NYP Brooklyn Methodist Hospital, Brooklyn, NY, USA
| | | | - Rene S Schloss
- Rutgers University, Department of Biomedical Engineering, Piscataway, NJ, USA
| | - Joel Yarmush
- Department of Anesthesiology, NYP Brooklyn Methodist Hospital, Brooklyn, NY, USA
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Roy S, Manna K, Jha T, Saha KD. Chrysin-loaded PLGA attenuates OVA-induced allergic asthma by modulating TLR/NF-κB/NLRP3 axis. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2020; 30:102292. [PMID: 32853785 DOI: 10.1016/j.nano.2020.102292] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 06/23/2020] [Accepted: 08/12/2020] [Indexed: 12/17/2022]
Abstract
Asthma, one of the significant public health problems, is triggered by certain inflammatory processes in the airways that are not addressed propitiously by current therapies. Though pieces of evidence on allergic asthma mitigation by the anti-inflammatory bioflavonoid chrysin (CHR) are accumulating, poor bioavailability, and low solubility curtail drug development. To overcome these shortcomings, CHR loaded nanoparticle (CHR-NP) was formulated, and its salutary effect in preclinical murine allergic asthma model via the peroral route was evaluated. The spherical nanosized particles showed slow, sustained release in vitro. Moreover, CHR-NP dramatically reduced the serum IgE, ovalbumin (OVA)-induced lung histological alteration, as well as Th2 (T-helper 2) cytokines in the bronchoalveolar lavage fluid (BALF). It also suppressed the elevated serum pro-inflammatory cytokines and their upstream TLR/NF-κB/NLRP3 pathway activation in lung superior to CHR and almost identical to dexamethasone (DEX). Thus this study suggests the potentiality of CHR-NP in ameliorating allergic asthma progression.
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Affiliation(s)
- Saheli Roy
- Cancer Biology & Inflammatory Disorder, Indian Institute of Chemical Biology (CSIR-IICB), Kolkata, West Bengal, India
| | - Krishnendu Manna
- Department of Food & Nutrition, University of Kalyani, Kalyani, West Bengal, India
| | - Tarun Jha
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, West Bengal, India
| | - Krishna Das Saha
- Cancer Biology & Inflammatory Disorder, Indian Institute of Chemical Biology (CSIR-IICB), Kolkata, West Bengal, India.
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Nguyen DD, Luo LJ, Lai JY. Effects of shell thickness of hollow poly(lactic acid) nanoparticles on sustained drug delivery for pharmacological treatment of glaucoma. Acta Biomater 2020; 111:302-315. [PMID: 32428681 DOI: 10.1016/j.actbio.2020.04.055] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 04/30/2020] [Accepted: 04/30/2020] [Indexed: 01/02/2023]
Abstract
Structural designing of carriers with extended drug release profiles is critically important for achieving long-acting drug delivery systems toward efficient managements of chronic diseases. Here, we present a strategy to exploit the effects of the shell thickness of hollow poly(lactic acid) nanoparticles (HPLA NPs) in sustained glaucoma therapy. Formulations based on pilocarpine-loaded HPLA NPs with tailorable shell thickness ranging from 10 to 100 nm were shown to be highly compatible with human lens epithelial cells in vitro and with rabbit eyes in vivo. Specifically, shell thickness regulated the release of pilocarpine, with thick shells (~70 to 100 nm) providing sustained drug release performance but limited drug-loading efficiency, whereas ultrathin shells (~10 nm) induced the opposite effects. Remarkably, moderately thick shells (~40 nm) showed the most effective release profile of pilocarpine (above the therapeutic levels of ~10 µg/mL for over 56 days). In a rabbit model of glaucoma, single intracameral administration of an HPLA NP-based formulation with shell thickness of ~40 nm sustainably alleviated ocular hypertension for over 56 days, consequently protecting the structural integrity of the corneal endothelium, preserving the electrophysiological functions of the retina, and attenuating retinal and optic nerve degeneration in progressively glaucomatous eyes. The findings therefore implied a promising use of shell thickness effects in the development of long-acting drug delivery systems for pharmacological treatment of chronic ocular diseases. STATEMENT OF SIGNIFICANCE: Owing to their large surface areas and modifiable structures, nanoparticles have been considered as a promising platform for drug delivery; however, achieving drug nanocarrier systems with reduced burst release and sustained therapeutic efficacy remains challenges. This work presents the first report on rational design of hollow poly(lactic acid) nanocarriers for tailoring the structure-property-function relationships toward effective treatment of glaucoma. The shell thickness of the hollow nanocarriers is demonstrated to have influential impacts on pilocarpine encapsulation efficiency and release profile, indicating that the most sustained delivery performance (maintaining the release of pilocarpine above therapeutic level over 56 days) can be obtained for the polymeric nanoparticles with moderate shell thickness of ~40 nm.
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14
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Tang TO, Simon GP. Biodegradation of 3D‐printed polylactic acid milliprojections under physiological conditions. J Appl Polym Sci 2020. [DOI: 10.1002/app.49129] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tiffany Obog Tang
- Department of Materials Science and Engineering, Faculty of EngineeringMonash University Clayton Victoria Australia
- ManufacturingCommonwealth Scientific and Industrial Research Organisation, Research Way Clayton Victoria Australia
| | - George Philip Simon
- Department of Materials Science and Engineering, Faculty of EngineeringMonash University Clayton Victoria Australia
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15
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Production and computational fluid dynamics-based modeling of PMMA nanoparticles impregnated with ivermectin by a supercritical antisolvent process. J CO2 UTIL 2020. [DOI: 10.1016/j.jcou.2019.08.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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16
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Urbánek T, Jäger E, Jäger A, Hrubý M. Selectively Biodegradable Polyesters: Nature-Inspired Construction Materials for Future Biomedical Applications. Polymers (Basel) 2019; 11:E1061. [PMID: 31248100 PMCID: PMC6630685 DOI: 10.3390/polym11061061] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 05/28/2019] [Accepted: 06/14/2019] [Indexed: 12/13/2022] Open
Abstract
In the last half-century, the development of biodegradable polyesters for biomedical applications has advanced significantly. Biodegradable polyester materials containing external stimuli-sensitive linkages are favored in the development of therapeutic devices for pharmacological applications such as delivery vehicles for controlled/sustained drug release. These selectively biodegradable polyesters degrade after particular external stimulus (e.g., pH or redox potential change or the presence of certain enzymes). This review outlines the current development of biodegradable synthetic polyesters materials able to undergo hydrolytic or enzymatic degradation for various biomedical applications, including tissue engineering, temporary implants, wound healing and drug delivery.
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Affiliation(s)
- Tomáš Urbánek
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského náměstí 2, 162 00 Prague 6, Czech Republic.
| | - Eliézer Jäger
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského náměstí 2, 162 00 Prague 6, Czech Republic.
| | - Alessandro Jäger
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského náměstí 2, 162 00 Prague 6, Czech Republic.
| | - Martin Hrubý
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského náměstí 2, 162 00 Prague 6, Czech Republic.
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17
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Blasi P. Poly(lactic acid)/poly(lactic-co-glycolic acid)-based microparticles: an overview. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2019. [DOI: 10.1007/s40005-019-00453-z] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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18
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Wilson JA, Ates Z, Pflughaupt RL, Dove AP, Heise A. Polymers from macrolactones: From pheromones to functional materials. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.02.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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19
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Xu P, Huang X, Pan X, Li N, Zhu J, Zhu X. Hyperbranched Polycaprolactone through RAFT Polymerization of 2-Methylene-1,3-dioxepane. Polymers (Basel) 2019; 11:polym11020318. [PMID: 30960302 PMCID: PMC6419385 DOI: 10.3390/polym11020318] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 02/04/2019] [Accepted: 02/04/2019] [Indexed: 11/16/2022] Open
Abstract
Hyperbranched polycaprolactone with controlled structure was synthesized by reversible addition-fragmentation chain transfer radical ring-opening polymerization along with self-condensed vinyl polymerization (SCVP) of 2-methylene-1,3-dioxepane (MDO). Vinyl 2-[(ethoxycarbonothioyl) sulfanyl] propanoate (ECTVP) was used as polymerizable chain transfer agent. Living polymerization behavior was proved via pseudo linear kinetics, the molecular weight of polymers increasing with conversion and successful chain extension. The structure of polymers was characterized by ¹H NMR spectroscopy, tripe detection gel permeation chromatography, and differential scanning calorimetry. The polymer composition was shown to be able to tune to vary the amount of ester repeat units in the polymer backbone, and hence determine the degree of branching. As expected, the degree of crystallinity was lower and the rate of degradation was faster in cases of increasing the number of branches.
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Affiliation(s)
- Ping Xu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Xiaofei Huang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
- Jiangsu Litian Technology Co. Ltd., Rudong County, Jiangsu 226407, China.
| | - Xiangqiang Pan
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Na Li
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Jian Zhu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Xiulin Zhu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
- Global Institute of Software Technology, No 5. Qingshan Road, Suzhou National Hi-Tech District, Suzhou 215163, China.
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20
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Lee PW, Pokorski JK. Poly(lactic-co-glycolic acid) devices: Production and applications for sustained protein delivery. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2018; 10:e1516. [PMID: 29536634 PMCID: PMC6136991 DOI: 10.1002/wnan.1516] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Revised: 01/30/2018] [Accepted: 02/14/2018] [Indexed: 12/12/2022]
Abstract
Injectable or implantable poly(lactic-co-glycolic acid) (PLGA) devices for the sustained delivery of proteins have been widely studied and utilized to overcome the necessity of repeated administrations for therapeutic proteins due to poor pharmacokinetic profiles of macromolecular therapies. These devices can come in the form of microparticles, implants, or patches depending on the disease state and route of administration. Furthermore, the release rate can be tuned from weeks to months by controlling the polymer composition, geometry of the device, or introducing additives during device fabrication. Slow-release devices have become a very powerful tool for modern medicine. Production of these devices has initially focused on emulsion-based methods, relying on phase separation to encapsulate proteins within polymeric microparticles. Process parameters and the effect of additives have been thoroughly researched to ensure protein stability during device manufacturing and to control the release profile. Continuous fluidic production methods have also been utilized to create protein-laden PLGA devices through spray drying and electrospray production. Thermal processing of PLGA with solid proteins is an emerging production method that allows for continuous, high-throughput manufacturing of PLGA/protein devices. Overall, polymeric materials for protein delivery remain an emerging field of research for the creation of single administration treatments for a wide variety of disease. This review describes, in detail, methods to make PLGA devices, comparing traditional emulsion-based methods to emerging methods to fabricate protein-laden devices. This article is categorized under: Biology-Inspired Nanomaterials > Protein and Virus-Based Structures Implantable Materials and Surgical Technologies > Nanomaterials and Implants Biology-Inspired Nanomaterials > Peptide-Based Structures.
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Affiliation(s)
- Parker W. Lee
- Department of Macromolecular Science and Engineering, School of Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Jonathan K. Pokorski
- Department of Macromolecular Science and Engineering, School of Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
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21
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Antileishmanial and Immunomodulatory Effect of Babassu-Loaded PLGA Microparticles: A Useful Drug Target to Leishmania amazonensis Infection. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:3161045. [PMID: 30046335 PMCID: PMC6036798 DOI: 10.1155/2018/3161045] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 05/03/2018] [Accepted: 05/16/2018] [Indexed: 01/21/2023]
Abstract
The immunological and the anti-Leishmania amazonensis activity of babassu-loaded poly(lactic-co-glycolic acid) [PLGA] microparticles was evaluated. The anti-Leishmania activity was evaluated against promastigotes or amastigotes forms, in Balb/c macrophages. The size of the microparticles ranged from 3 to 6.4 μm, with a zeta potential of −25 mV and encapsulation efficiency of 48%. The anti-Leishmania activity of the PLGA microparticles loaded with the aqueous extract of babassu mesocarp (MMP) (IC50) was 10-fold higher than that free extract (Meso). MMP exhibited overall bioavailability and was very effective in eliminating intracellular parasites. MMP also reduced ex vivo parasite infectivity probably by the increased production of nitric oxide, hydrogen peroxide, and TNF-α indicating the activation of M1 macrophages. The overexpression of TNF-α did not impair cell viability, suggesting antiapoptotic effects of MMP. In conclusion, babassu-loaded microparticles could be useful for drug targeting in the treatment of leishmaniasis, due to the immunomodulatory effect on macrophage polarization and the increased efficacy as an anti-Leishmania product after the microencapsulation. These findings are of great relevance since the development of new drugs for the treatment of neglected diseases is desirable, mainly if we consider the high morbidity and mortality rates of leishmaniasis worldwide.
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22
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Salmani H, Zorin IM, Akentiev AV, Bilibin AY. Effect of preparation conditions on properties of polylactide and polystyrene and their composite microparticles made by emulsion solvent evaporation method. POLYMER SCIENCE SERIES A 2018. [DOI: 10.1134/s0965545x16050163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Davis MS, Marrero-Berrios I, Perez I, Maguire T, Radhakrishnan P, Manchikalapati D, SchianodiCola J, Kamath H, Schloss RS, Yarmush J. Alginate-liposomal construct for bupivacaine delivery and MSC function regulation. Drug Deliv Transl Res 2018; 8:226-238. [PMID: 29204926 PMCID: PMC6218803 DOI: 10.1007/s13346-017-0454-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Mesenchymal stromal cell (MSC) therapies have become potential treatment options for multiple ailments and traumatic injuries. In the clinical setting, MSC are likely to be co-administered with local anesthetics (LA) which have been shown to have dose- and potency-dependent detrimental effects on the viability and function of cells. We previously developed and characterized a sustained-release LA delivery formulation comprised of alginate-encapsulated liposomal bupivacaine. The current studies were designed to evaluate the effect of this formulation on the secretion of three key MSC regulatory molecules, interleukin 6 (IL-6), prostaglandin E2 (PGE2), and transforming growth factor-beta 1 (TGF-β1). MSCs were treated with several bupivacaine formulations-bolus, liposome, or alginate-liposome construct (engineered construct)-in the presence or absence of inflammatory stimulus to stimulate an injured tissue environment. Our results indicated that compared to bolus or liposomal bupivacaine, the engineered construct preserved or promoted MSC anti-inflammatory PGE2 secretion; however, the engineered construct did not increase TGF-β1 secretion. Bupivacaine release profile analyses indicated that mode of drug delivery controlled the LA concentration over time and pathway analysis identified several shared and cytokine-specific molecular mediators for IL-6, PGE2, and TGF-β1 which could explain differential MSC secretion responses in the presence of bupivacaine. Collectively, these studies support the potential utility of alginate-encapsulated LA constructs for anti-inflammatory cell therapy co-administration and indicate that mode of local anesthetic delivery can significantly alter MSC secretome function.
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Affiliation(s)
- Mollie S Davis
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, 599 Taylor Road, Piscataway, NJ, 08805, USA
| | - Ileana Marrero-Berrios
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, 599 Taylor Road, Piscataway, NJ, 08805, USA
| | - Isabel Perez
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, 599 Taylor Road, Piscataway, NJ, 08805, USA
| | - Timothy Maguire
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, 599 Taylor Road, Piscataway, NJ, 08805, USA
| | | | | | | | | | - Rene S Schloss
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, 599 Taylor Road, Piscataway, NJ, 08805, USA.
| | - Joel Yarmush
- Department of Anesthesiology, New York Methodist Hospital, Brooklyn, NY, USA
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24
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Luque-Michel E, Sebastian V, Szczupak B, Imbuluzqueta E, Llop J, Blanco Prieto MJ. Visualization of hybrid gold-loaded polymeric nanoparticles in cells using scanning electron microscopy. J Drug Deliv Sci Technol 2017. [DOI: 10.1016/j.jddst.2017.04.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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25
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Gaston E, Fraser JF, Xu ZP, Ta HT. Nano- and micro-materials in the treatment of internal bleeding and uncontrolled hemorrhage. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 14:507-519. [PMID: 29162534 DOI: 10.1016/j.nano.2017.11.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 11/01/2017] [Accepted: 11/05/2017] [Indexed: 12/14/2022]
Abstract
Internal bleeding is defined as the loss of blood that occurs inside of a body cavity. After a traumatic injury, hemorrhage accounts for over 35% of pre-hospital deaths and 40% of deaths within the first 24 hours. Coagulopathy, a disorder in which the blood is not able to properly form clots, typically develops after traumatic injury and results in a higher rate of mortality. The current methods to treat internal bleeding and coagulopathy are inadequate due to the requirement of extensive medical equipment that is typically not available at the site of injury. To discover a potential route for future research, several current and novel treatment methods have been reviewed and analyzed. The aim of investigating different potential treatment options is to expand available knowledge, while also call attention to the importance of research in the field of treatment for internal bleeding and hemorrhage due to trauma.
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Affiliation(s)
- Elizabeth Gaston
- Australian Institute for Bioengineering and Nanotechnology, the University of Queensland, Brisbane, QLD, Australia; Department of Bioengineering, Clemson University, Clemson, SC, USA
| | - John F Fraser
- Faculty of Medicine, Critical Care Research Group, Prince Charles Hospital and the University of Queensland, Brisbane, Brisbane, QLD, Australia
| | - Zhi Ping Xu
- Australian Institute for Bioengineering and Nanotechnology, the University of Queensland, Brisbane, QLD, Australia
| | - Hang T Ta
- Australian Institute for Bioengineering and Nanotechnology, the University of Queensland, Brisbane, QLD, Australia.
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26
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Sun H, Gu X, Liu K, Fang C, Tang M. Applicability of electrospun polypropylene carbonate polymers as a drug carrier for sirolimus. Mol Med Rep 2017; 15:4253-4258. [PMID: 28487969 DOI: 10.3892/mmr.2017.6540] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 03/08/2017] [Indexed: 11/05/2022] Open
Abstract
Polypropylene carbonate (PPC), a biodegradable aliphatic polyester, exhibits one particular advantage over other polyesters, which is that following degradation in vivo, it primarily produces H2O and CO2, causing minimal side effects. Although PPC exhibits limited mechanical strength, and is therefore not able to serve as a scaffold to support tissue regeneration, it may be suitable for drug delivery; however, this requires further investigation. In the present study, electrospinning was applied to generate PPC polymers containing sirolimus, a cell growth‑inhibiting drug which is used to treat restenosis. The properties of PPC‑sirolimus polymers were examined using scanning electron microscopy, differential scanning calorimetry and in vitro degradation assays. Drug loading and entrapment efficiency were determined, and in vitro sirolimus‑release from the polymer was assessed. Furthermore, the effect of PPC‑sirolimus polymers on cell growth was measured using an MTT assay in vitro. The results of the present study demonstrated that electrospun PPC polymers formed a uniform three‑dimensional, grid‑intertwined, net‑like structure; the surface of the polymers was smooth and the diameter was ~3 µm. Differential scanning calorimetry analysis demonstrated that sirolimus existed in an amorphous state in the polymer. Following soaking in PBS for 4 weeks, the polymer swelled and the net‑like structure broke down and fragmented. Sirolimus loading and entrapment efficiency were 10.3±3.2 and 95.1±10.6%, respectively. Sirolimus‑release from PPC‑sirolimus polymers continued for 28 days in PBS. PPC‑sirolimus markedly inhibited the growth of rat aortic adventitial fibroblast cells, an effect which was not observed with PPC alone. The results of the present study suggest that PPC polymers are a promising alternative drug carrier for sirolimus.
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Affiliation(s)
- Hourong Sun
- Department of Cardiovascular Surgery, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Xinghua Gu
- Department of Cardiovascular Surgery, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Kai Liu
- Department of Cardiovascular Surgery, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Changcun Fang
- Department of Cardiovascular Surgery, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Mengmeng Tang
- Department of Cardiovascular Surgery, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China
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27
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Hasan S, Thomas N, Thierry B, Prestidge CA. Biodegradable nitric oxide precursor-loaded micro- and nanoparticles for the treatment of Staphylococcus aureus biofilms. J Mater Chem B 2017; 5:1005-1014. [PMID: 32263879 DOI: 10.1039/c6tb03290g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Bacteria in biofilms are more difficult to eradicate than planktonic bacteria and result in treatment challenges for many chronic infectious diseases. Nitric oxide (NO) is an endogenous molecule that offers potential as an alternative to conventional antibiotics; however its sustained topical delivery to biofilms is not readily achieved. With this in mind, we report the development of biodegradable poly(lactide-co-glycolide) (PLGA) based microparticles (MP) and nanoparticles (NP) for encapsulation of the NO precursor isosorbide mononitrate (ISMN) and the controlled delivery to Staphylococcus aureus (S. aureus) biofilms. Firstly, water-in-oil-in-water (w/o/w) emulsification/solvent evaporation methods for PLGA NP and MP syntheses were experimentally optimised with respect to particle size and ISMN loading/encapsulation efficiency. The influence of various experiment parameters, such as the volume of inner aqueous phase, concentration of surfactants, mixing time on the particle size, drug loading and encapsulation efficiency were investigated systematically. Both PLGA MP and NP formulations enabled sustained ISMN release in physiological media over 3 to 5 days. PLGA MP with diameters of ∼3 μm and ISMN loading of 2.2% (w/w) were identified as the optimum delivery system and demonstrated significant antibacterial activity in S. aureus biofilms. This behaviour is considered to be due to targeted biofilm delivery through a combination of effective penetration and sustained release of ISMN.
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Affiliation(s)
- Sayeed Hasan
- School of Pharmacy and Medical Sciences, Sansom Institute for Health Research, University of South Australia, Adelaide, South Australia, Australia.
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28
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Huang A, Jiang Y, Napiwocki B, Mi H, Peng X, Turng LS. Fabrication of poly(ε-caprolactone) tissue engineering scaffolds with fibrillated and interconnected pores utilizing microcellular injection molding and polymer leaching. RSC Adv 2017. [DOI: 10.1039/c7ra06987a] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Three-dimensional fibrillated interconnected porous poly(ε-caprolactone) scaffolds were prepared by microcellular injection molding and polymer leaching.
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Affiliation(s)
- An Huang
- National Engineering Research Center of Novel Equipment for Polymer Processing
- South China University of Technology
- Guangzhou
- China
- Department of Mechanical Engineering
| | - Yongchao Jiang
- Department of Mechanical Engineering
- University of Wisconsin-Madison
- Madison
- USA
- Wisconsin Institute for Discovery
| | - Brett Napiwocki
- Wisconsin Institute for Discovery
- University of Wisconsin-Madison
- Madison
- USA
- Department of Biomedical Engineering
| | - Haoyang Mi
- National Engineering Research Center of Novel Equipment for Polymer Processing
- South China University of Technology
- Guangzhou
- China
- Department of Mechanical Engineering
| | - Xiangfang Peng
- National Engineering Research Center of Novel Equipment for Polymer Processing
- South China University of Technology
- Guangzhou
- China
| | - Lih-Sheng Turng
- Department of Mechanical Engineering
- University of Wisconsin-Madison
- Madison
- USA
- Wisconsin Institute for Discovery
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29
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Poly(lactic acid) for delivery of bioactive macromolecules. Adv Drug Deliv Rev 2016; 107:277-288. [PMID: 27349593 DOI: 10.1016/j.addr.2016.06.009] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 06/02/2016] [Accepted: 06/15/2016] [Indexed: 12/18/2022]
Abstract
Therapeutic biomolecules often require frequent administration and supramolecular dosing to achieve therapeutic efficiencies and direct infusion into treatment or defect sites results in inadequate physiological response and at times severe side effects or mis-targeting. Delivery systems serve several purposes such as increased circulatory time, increased biomolecule half-life, and incorporation of new innovations can enable highly specific cell targeting and improved cell and nucleus permeability. Poly(lactic acid) (PLA) has become a "material of choice" due to wide availability, reproducible synthetic route, customization, versatility, biodegradability and biocompatibility. Furthermore, PLA is amenable to a variety of fabrication methodologies and chemistries allowing an expansive library correlating physio-chemical properties, characteristics, and applications. This article discusses challenges to biomolecule delivery, and classical approaches of PLA based biomolecule delivery and targeting strategies under development and in trials.
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PLGA-based microparticles loaded with bacterial-synthesized prodigiosin for anticancer drug release: Effects of particle size on drug release kinetics and cell viability. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 66:51-65. [DOI: 10.1016/j.msec.2016.04.071] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 04/18/2016] [Accepted: 04/19/2016] [Indexed: 01/02/2023]
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31
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Panith N, Assavanig A, Lertsiri S, Bergkvist M, Surarit R, Niamsiri N. Development of tunable biodegradable polyhydroxyalkanoates microspheres for controlled delivery of tetracycline for treating periodontal disease. J Appl Polym Sci 2016. [DOI: 10.1002/app.44128] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Nootchanartch Panith
- Department of Biotechnology Faculty of Science; Mahidol University; Bangkok 10400 Thailand
| | - Apinya Assavanig
- Department of Biotechnology Faculty of Science; Mahidol University; Bangkok 10400 Thailand
| | - Sittiwat Lertsiri
- Department of Biotechnology Faculty of Science; Mahidol University; Bangkok 10400 Thailand
| | - Magnus Bergkvist
- Colleges of Nanoscale Science and Engineering; SUNY Polytechnic Institute; Albany New York 12203
| | - Rudee Surarit
- Department of Oral Biology Faculty of Dentistry; Mahidol University; Bangkok 10400 Thailand
| | - Nuttawee Niamsiri
- Department of Biotechnology Faculty of Science; Mahidol University; Bangkok 10400 Thailand
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Lazarus GG, Singh M. In vitro cytotoxic activity and transfection efficiency of polyethyleneimine functionalized gold nanoparticles. Colloids Surf B Biointerfaces 2016; 145:906-911. [PMID: 27341304 DOI: 10.1016/j.colsurfb.2016.05.072] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 05/24/2016] [Accepted: 05/25/2016] [Indexed: 01/08/2023]
Abstract
In this study, we report on the synthesis of polyethyleneimine (PEI) coated gold nanoparticles for potential application as non-viral gene carriers. In the presence of the electrolyte, sodium citrate, the electrophoretic mobility confirmed the electroneutral nature of the nanocomplex. MTT cell viability assays showed that the Au-PEI/pDNA complexes maintained over 60% cell viability across the four cell lines tested. Transfection studies were accomplished using the luciferase reporter gene assay. Results showed that the FAuNPs produced greater transgene activity than the cationic polymer/DNA complexes on their own. This was evident for the Au-PEI/pDNA complex which produced a 12 fold increase in the HEK293 cells and a 9 fold increase in the HepG2 cells, compared to the PEI/pDNA complexes.
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Affiliation(s)
| | - Moganavelli Singh
- Discipline of Biochemistry, University of KwaZulu-Natal, Durban, South Africa
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Colloidal Gold-Mediated Delivery of Bleomycin for Improved Outcome in Chemotherapy. NANOMATERIALS 2016; 6:nano6030048. [PMID: 28344305 PMCID: PMC5302526 DOI: 10.3390/nano6030048] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 02/23/2016] [Accepted: 02/26/2016] [Indexed: 12/14/2022]
Abstract
Nanoparticles (NPs) can be used to overcome the side effects of poor distribution of anticancer drugs. Among other NPs, colloidal gold nanoparticles (GNPs) offer the possibility of transporting major quantities of drugs due to their large surface-to-volume ratio. This is while confining these anticancer drugs as closely as possible to their biological targets through passive and active targeting, thus ensuring limited harmful systemic distribution. In this study, we chose to use bleomycin (BLM) as the anticancer drug due to its limited therapeutic efficiency (harmful side effects). BLM was conjugated onto GNPs through a thiol bond. The effectiveness of the chemotherapeutic drug, BLM, is observed by visualizing DNA double strand breaks and by calculating the survival fraction. The action of the drug (where the drug takes effect) is known to be in the nucleus, and our experiments have shown that some of the GNPs carrying BLM were present in the nucleus. The use of GNPs to deliver BLM increased the delivery and therapeutic efficacy of the drug. Having a better control over delivery of anticancer drugs using GNPs will establish a more successful NP-based platform for a combined therapeutic approach. This is due to the fact that GNPs can also be used as radiation dose enhancers in cancer research.
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Sarkar Das S, Lucas AD, Carlin AS, Zheng J, Patwardhan DV, Saylor DM. Controlled initial surge despite high drug fraction and high solubility. Pharm Dev Technol 2016; 22:35-44. [PMID: 26895348 DOI: 10.3109/10837450.2015.1135341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Potential connections between release profiles and solvent evaporation rates alongside polymer chemistry were elucidated for the release of tetracycline hydrochloride from two different poly (d, l-lactide-co-glycolide) (PLGA) film matrices containing high drug fractions (50%, 30%, and 15%), and prepared at two distinct solvent evaporation rates. At highest tetracycline concentrations (50%), (i) the early release rates were ≤0.5 μg/min in all cases; (ii) release was linear from systems fabricated with lower lactic content and slower solvent evaporation rate and bimodal from systems fabricated with higher lactic content and faster evaporation rate; (iii) surface fractions covered by the drug were similar at both evaporation rates for 85:15 PLGA but very different for 50:50 PLGA, leading to unexpectedly reduced early release from 50:50 PLGA than from 85:15 PLGA when both the matrices were fabricated using a slower evaporation rate. These features remained unaffected in case of low drug concentration. Results suggested that during the formation of the drug-polymer microstructure, the combined effect of polymer chemistry and solvent evaporation rate sets apart the surface characteristics and the initial release profiles of systems containing high drug fraction, and an appropriate combination of these parameters may be utilized to control the early stage of drug release.
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Affiliation(s)
- Srilekha Sarkar Das
- a Office of Science and Engineering Laboratories, Center for Devices and Radiological Health and
| | - Anne D Lucas
- a Office of Science and Engineering Laboratories, Center for Devices and Radiological Health and
| | - Alan S Carlin
- b Office of Product Quality/Office of Testing and Research, Center for Drug Evaluation and Research, US Food and Drug Administration , Silver Spring , MD , USA
| | - Jiwen Zheng
- a Office of Science and Engineering Laboratories, Center for Devices and Radiological Health and
| | - Dinesh V Patwardhan
- a Office of Science and Engineering Laboratories, Center for Devices and Radiological Health and
| | - David M Saylor
- a Office of Science and Engineering Laboratories, Center for Devices and Radiological Health and
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Park JY, Gao G, Jang J, Cho DW. 3D printed structures for delivery of biomolecules and cells: tissue repair and regeneration. J Mater Chem B 2016; 4:7521-7539. [DOI: 10.1039/c6tb01662f] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This paper reviews the current approaches to using 3D printed structures to deliver bioactive factors (e.g., cells and biomolecules) for tissue repair and regeneration.
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Affiliation(s)
- Ju Young Park
- Division of Integrative Biosciences and Biotechnology
- Pohang University of Science and Technology (POSTECH)
- Pohang
- Republic of Korea
| | - Ge Gao
- Department of Mechanical Engineering
- Pohang University of Science and Technology (POSTECH)
- Pohang
- Republic of Korea
| | - Jinah Jang
- Department of Mechanical Engineering
- Pohang University of Science and Technology (POSTECH)
- Pohang
- Republic of Korea
| | - Dong-Woo Cho
- Department of Mechanical Engineering
- Pohang University of Science and Technology (POSTECH)
- Pohang
- Republic of Korea
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36
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Othman R, Vladisavljević GT, Nagy ZK. Preparation of biodegradable polymeric nanoparticles for pharmaceutical applications using glass capillary microfluidics. Chem Eng Sci 2015. [DOI: 10.1016/j.ces.2015.06.025] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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37
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Shen M, Xu YY, Sun Y, Han BS, Duan YR. Preparation of a Thermosensitive Gel Composed of a mPEG-PLGA-PLL-cRGD Nanodrug Delivery System for Pancreatic Tumor Therapy. ACS APPLIED MATERIALS & INTERFACES 2015; 7:20530-20537. [PMID: 26366977 DOI: 10.1021/acsami.5b06043] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
It is hypothesized that a gel (NP-Gel) composed of thermosensitive gel (Gel) and nanoparticles (NP) can prolong drug release time and overcome the drug resistance of pancreatic tumor cells. Paclitaxel (PTX)-loaded monomethoxy (polyethylene glycol)-poly(d,l-lactide-co-glycolide)-poly(l-lysine)-cyclic peptide (arginine-glycine-aspartic-glutamic-valine acid) (mPEG-PLGA-PLL-cRGD) NP and NP-Gel were designed, optimized, and characterized using dynamic light scattering, transmission electron microscopy, high efficiency liquid chromatography, and rheological analyses. Aspc-1/PTX cell was used in a cell uptake test. A 3D cell model was used to mimic PTX elimination in tissue. The in vivo sustained release and antitumor effects were studied in Aspc-1/PTX-loaded nude mice with xerographic and in situ tumors. The NP were 133.7 ± 28.3 nm with 85.03% entrapped efficiency, 1.612% loaded ratio, and suitable rheological properties. PTX was released as NP from NP-Gel, greatly prolonging the release and elimination times to afford long-term effects. NP-Gel enhanced the uptake of PTX by Aspc-1/PTX cells more than using NP or the Gel alone. Gel and NP-Gel remained solid in the tumor and stayed over 50 days versus the several days of NP in solution. NP-Gel exhibited a much higher inhibition rate in vivo than in solution, NP, or the Gel alone. In conclusion, the antitumor effects of NP-Gel might arise from synergic effects from NP and the Gel. NP primarily reversed drug resistance, while the Gel prolonged release time considerably in situ. This preparation proved effective with a very small PTX dose (250 μg/kg) and exhibited few toxic effects in normal tissue.
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Affiliation(s)
- Ming Shen
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai 200032, P. R. China
| | - Yuan-Yuan Xu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai 200032, P. R. China
| | - Ying Sun
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai 200032, P. R. China
| | - Bao-Shan Han
- Department of general Surgery, School of Medicine, Xinhua Hospital, Shanghai Jiao Tong University , Shanghai, 200092, P. R. China
| | - You-Rong Duan
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai 200032, P. R. China
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38
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Hong MH, Choi HJ, Ko YM, Lee YK. Engineered microstructure granules for tailored drug release rate. Biotechnol Bioeng 2015; 112:1936-47. [DOI: 10.1002/bit.25595] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 02/24/2015] [Accepted: 03/04/2015] [Indexed: 12/19/2022]
Affiliation(s)
- Min-Ho Hong
- Department of Materials Science and Engineering; Yonsei University; Seodaemun-gu Seoul Korea
| | - Heon-Jin Choi
- Department of Materials Science and Engineering; Yonsei University; Seodaemun-gu Seoul Korea
| | - Yeong-Mu Ko
- Research Center for Oral Disease Regulation of the Aged; Chosun University School of Dentistry; 309 Pilmun-daero Dong-gu Gwangju 501-759 Korea
| | - Yong-Keun Lee
- Research Center for Oral Disease Regulation of the Aged; Chosun University School of Dentistry; 309 Pilmun-daero Dong-gu Gwangju 501-759 Korea
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39
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Kim DY, Kwon DY, Kwon JS, Kim JH, Min BH, Kim MS. Stimuli-Responsive InjectableIn situ-Forming Hydrogels for Regenerative Medicines. POLYM REV 2015. [DOI: 10.1080/15583724.2014.983244] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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40
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Development of Sustained Release "NanoFDC (Fixed Dose Combination)" for Hypertension - An Experimental Study. PLoS One 2015; 10:e0128208. [PMID: 26047011 PMCID: PMC4457799 DOI: 10.1371/journal.pone.0128208] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 04/24/2015] [Indexed: 11/22/2022] Open
Abstract
Objectives The present study was planned to formulate, characterize and evaluate the pharmacokinetics of a novel “NanoFDC” comprising three commonly prescribed anti-hypertensive drugs, hydrochlorothiazide (a diuretic), candesartan (ARB) and amlodipine (a calcium channel blocker). Basic Methods The candidate drugs were loaded in Poly (DL-lactide-co-gycolide) (PLGA) by emulsion- diffusion-evaporation method. The formulations were evaluated for their size, morphology, drug loading and in vitro release individually. Single dose pharmacokinetic profiles of the nanoformulations alone and in combination, as a NanoFDC, were evaluated in Wistar rats. Results The candidate drugs encapsulated inside PLGA showed entrapment efficiencies ranging from 30%, 33.5% and 32% for hydrochlorothiazide, candesartan and amlodipine respectively. The nanoparticles ranged in size from 110 to 180 nm. In vitro release profile of the nanoformulation showed 100% release by day 6 in the physiological pH 7.4 set up with PBS (phosphate buffer saline) and by day 4-5 in the intestinal pH 1.2 and 8.0 set up SGF (simulated gastric fluid) and SIF (simulated intestinal fluid) respectively. In pharmacokinetic analysis a sustained-release for 6 days and significant increase in the mean residence time (MRT), as compared to the respective free drugs was noted [MRT of amlodipine, hydrochlorothiazide and candesartan changed from 8.9 to 80.59 hours, 11 to 69.20 hours and 9 to 101.49 hours respectively]. Conclusion We have shown for the first time that encapsulating amlodipine, hydrochlorothiazide and candesartan into a single nanoformulation, to get the “NanoFDC (Fixed Dose Combination)” is a feasible strategy which aims to decrease pill burden.
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41
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Prajapati VD, Jani GK, Kapadia JR. Current knowledge on biodegradable microspheres in drug delivery. Expert Opin Drug Deliv 2015; 12:1283-99. [DOI: 10.1517/17425247.2015.1015985] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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42
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Evaluation of Lapatinib Powder-Entrapped Biodegradable Polymeric Microstructures Fabricated by X-Ray Lithography for a Targeted and Sustained Drug Delivery System. MATERIALS 2015; 8:519-534. [PMID: 28787954 PMCID: PMC5455267 DOI: 10.3390/ma8020519] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Revised: 01/16/2015] [Accepted: 01/30/2015] [Indexed: 01/09/2023]
Abstract
An oral medication of a molecular targeted drug, lapatinib, is taken regularly to maintain the drug concentration within the desired therapeutic levels. To alleviate the need for such cumbersome administration schedules in several drugs, advanced drug delivery systems (DDSs), which can provide time-controlled and sustained drug release, have recently received significant attention. A biodegradable synthetic polymer, such as polycaprolactone (PCL), is usually used as a carrier material for DDSs. In this paper, lapatinib powder-entrapped, PCL microstructures were fabricated with a precise X-ray lithography-based method. In vitro experiments on HER2 positive-human gastric cancer derived NCI-N87 cells were performed to appraise the drug release characteristics of the fabricated DDSs. The in vitro results indicate that after the X-ray lithography process, the lapatinib powder is still working well and show time- and dose- dependent drug release efficiencies. The cell growth inhibition characteristics of one hundred 40-μm sized microstructures were similar to those of a 1 μM lapatinib solution for over 144 h. In conclusion, the developed lapatinib-entrapped PCL microstructures can be used in molecular targeted delivery and sustained release as effective cancer-targeted DDSs.
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43
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Olabisi RM. Cell microencapsulation with synthetic polymers. J Biomed Mater Res A 2015; 103:846-59. [PMID: 24771675 PMCID: PMC4309473 DOI: 10.1002/jbm.a.35205] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 04/11/2014] [Accepted: 04/21/2014] [Indexed: 12/18/2022]
Abstract
The encapsulation of cells into polymeric microspheres or microcapsules has permitted the transplantation of cells into human and animal subjects without the need for immunosuppressants. Cell-based therapies use donor cells to provide sustained release of a therapeutic product, such as insulin, and have shown promise in treating a variety of diseases. Immunoisolation of these cells via microencapsulation is a hotly investigated field, and the preferred material of choice has been alginate, a natural polymer derived from seaweed due to its gelling conditions. Although many natural polymers tend to gel in conditions favorable to mammalian cell encapsulation, there remain challenges such as batch to batch variability and residual components from the original source that can lead to an immune response when implanted into a recipient. Synthetic materials have the potential to avoid these issues; however, historically they have required harsh polymerization conditions that are not favorable to mammalian cells. As research into microencapsulation grows, more investigators are exploring methods to microencapsulate cells into synthetic polymers. This review describes a variety of synthetic polymers used to microencapsulate cells.
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Affiliation(s)
- Ronke M Olabisi
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Road, Piscataway, New Jersey, 08854
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44
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Abstract
Biodegradable polymers have played an important role in the delivery of drugs in a controlled and targeted manner. Polylactic-co-glycolic acid (PLGA) is one of the extensively researched synthetic biodegradable polymers due to its favorable properties. It is also known as a ‘Smart Polymer’ due to its stimuli sensitive behavior. A wide range of PLGA-based drug delivery systems have been reported for the treatment or diagnosis of various diseases and disorders. The present review provides an overview of the chemistry, physicochemical properties, biodegradation behavior, evaluation parameters and applications of PLGA in drug delivery. Different drug–polymer combinations developed into drug delivery or carrier systems are enumerated and discussed.
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45
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Motility Control of Bacteria-Actuated Biodegradable Polymeric Microstructures by Selective Adhesion Methods. MICROMACHINES 2014. [DOI: 10.3390/mi5041287] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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46
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Jiang T, Yu X, Carbone EJ, Nelson C, Kan HM, Lo KWH. Poly aspartic acid peptide-linked PLGA based nanoscale particles: Potential for bone-targeting drug delivery applications. Int J Pharm 2014; 475:547-57. [DOI: 10.1016/j.ijpharm.2014.08.067] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 08/24/2014] [Accepted: 08/27/2014] [Indexed: 12/25/2022]
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47
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Kaur IP, Singh H. Nanostructured drug delivery for better management of tuberculosis. J Control Release 2014; 184:36-50. [DOI: 10.1016/j.jconrel.2014.04.009] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Revised: 04/03/2014] [Accepted: 04/03/2014] [Indexed: 01/27/2023]
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48
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Chen J, Sheu AY, Li W, Zhang Z, Kim DH, Lewandowski RJ, Omary RA, Shea LD, Larson AC. Poly(lactide-co-glycolide) microspheres for MRI-monitored transcatheter delivery of sorafenib to liver tumors. J Control Release 2014; 184:10-7. [PMID: 24727059 DOI: 10.1016/j.jconrel.2014.04.008] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 01/25/2014] [Accepted: 04/02/2014] [Indexed: 12/13/2022]
Abstract
The multi-kinase inhibitor (MKI) sorafenib can be an effective palliative therapy for patients with hepatocellular carcinoma (HCC). However, patient tolerance is often poor due to common systemic side effects following oral administration. Local transcatheter delivery of sorafenib to liver tumors has the potential to reduce systemic toxicities while increasing the dose delivered to targeted tumors. We developed sorafenib-eluting PLG microspheres for delivery by intra-hepatic transcatheter infusion in an orthotropic rodent HCC model. The particles also encapsulated iron-oxide nanoparticles permitting magnetic resonance imaging (MRI) of intra-hepatic biodistributions. The PLG microspheres (diameter≈1μm) were loaded with 18.6% (w/w) sorafenib and 0.54% (w/w) ferrofluid and 65.2% of the sorafenib was released within 72h of media exposure. In vitro studies demonstrated significant reductions in HCC cell proliferation with increasing doses of the sorafenib-eluting microspheres, where the estimated IC50 was a 29μg/mL dose of microspheres. During in vivo studies, MRI permitted intra-procedural visualization of intra-hepatic microsphere delivery. At 72h after microsphere infusion, microvessel density was significantly reduced in tumors treated with the sorafenib-eluting microspheres compared to both sham control tumors (by 35%) and controls (by 30%). These PLG microspheres offer the potential to increase the efficacy of molecularly targeted MKI therapies while reducing systemic exposures via selective catheter-directed delivery to HCC.
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Affiliation(s)
- Jeane Chen
- Department of Chemical & Biological Engineering, Northwestern University, Evanston, IL, USA; Department of Radiology, Northwestern University, Chicago, IL, USA
| | - Alexander Y Sheu
- Department of Radiology, Northwestern University, Chicago, IL, USA
| | - Weiguo Li
- Department of Radiology, Northwestern University, Chicago, IL, USA
| | - Zhuoli Zhang
- Department of Radiology, Northwestern University, Chicago, IL, USA; Robert H. Lurie Comprehensive Cancer Center of Northwestern University, Chicago, IL, USA
| | - Dong-Hyun Kim
- Department of Radiology, Northwestern University, Chicago, IL, USA
| | - Robert J Lewandowski
- Department of Radiology, Northwestern University, Chicago, IL, USA; Robert H. Lurie Comprehensive Cancer Center of Northwestern University, Chicago, IL, USA
| | - Reed A Omary
- Department of Radiology, Northwestern University, Chicago, IL, USA; Robert H. Lurie Comprehensive Cancer Center of Northwestern University, Chicago, IL, USA; Department of Biomedical Engineering, Northwestern University, Chicago, IL, USA
| | - Lonnie D Shea
- Department of Chemical & Biological Engineering, Northwestern University, Evanston, IL, USA; Robert H. Lurie Comprehensive Cancer Center of Northwestern University, Chicago, IL, USA
| | - Andrew C Larson
- Department of Radiology, Northwestern University, Chicago, IL, USA; Robert H. Lurie Comprehensive Cancer Center of Northwestern University, Chicago, IL, USA; Department of Biomedical Engineering, Northwestern University, Chicago, IL, USA; Department of Electrical Engineering and Computer Science, Evanston, IL, USA.
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49
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Stöhr O, Ritter H. Networks Based on Poly(α-methylene-δ-valerolactone-co-δ-valerolactone): Crosslinking Through Free-Radical Vinyl Copolymerization. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201300674] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Olesja Stöhr
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University of Duesseldorf, Universitaetsstrasse 1; 40225 Duesseldorf Germany
| | - Helmut Ritter
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University of Duesseldorf, Universitaetsstrasse 1; 40225 Duesseldorf Germany
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50
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Ates Z, Heise A. Functional films from unsaturated poly(macrolactones) by thiol–ene cross-linking and functionalisation. Polym Chem 2014. [DOI: 10.1039/c3py01679j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of cross-linked surface-functional polyester films from natural macrolactones and their subsequent reaction with a fluorescent marker are presented.
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Affiliation(s)
- Zeliha Ates
- School of Chemical Sciences
- Dublin City University
- Dublin 9
- Ireland
| | - Andreas Heise
- School of Chemical Sciences
- Dublin City University
- Dublin 9
- Ireland
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