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Gilfeather IC, Pearson-Nadal HW, Andriolo JM, Skinner JL. Highly controlled multiplex electrospinning. DISCOVER NANO 2024; 19:98. [PMID: 38844618 PMCID: PMC11156818 DOI: 10.1186/s11671-024-04035-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 05/19/2024] [Indexed: 06/09/2024]
Abstract
Applications of electrospinning (ES) range from fabrication of biomedical devices and tissue regeneration scaffolds to light manipulation and energy conversion, and even to deposition of materials that act as growth platforms for nanoscale catalysis. One major limitation to wide adoption of ES is stochastic fiber deposition resulting from the chaotic motion of the polymer stream as is approaches the deposition surface. In the past, fabrication of structures or materials with precisely determined mesoscale morphology has been accomplished through modification of electrode shape, use of multi-dimensional electrodes or pins, deposition onto weaving looms, hand-held electrospinning devices that allow the user to guide deposition, or electric field manipulation by lensing elements or apertures. In this work, we demonstrate an ES system that contains multiple high voltage power supplies that are independently controlled through a control algorithm implemented in LabVIEW. The end result is what we term "multiplex ES" where multiple independently controlled high-voltage signals are combined by the ES fiber to result in unique deposition control. COMSOL Multiphysics® software was used to model the electric field produced in this novel ES system. Using the multi-power supply system, we demonstrate fabrication of woven fiber materials that do not require complex deposition surfaces. Time-varied sinusoidal wave inputs were used to create electrospun torus shapes. The outer diameter of the tori was found, through parametric analysis, to be rather insensitive to frequency used during deposition, while inner diameter was inversely related to frequency, resulting in overall width of the tori increasing with frequency. Multiplex ES has a high-frequency cutoff based on the time response of the high voltage electrical circuit. These time constants were measured and minimized through the addition of parallel resistors that decreased impedance of the system and improved the high-frequency cutoff by up to 63%.
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Affiliation(s)
- Isaac C Gilfeather
- Mechanical Engineering Department, Montana Technological University, 1300 West Park St., Butte, MT, 59701, USA
- Montana Tech Nanotechnology Laboratory, Montana Technological University, 1300 West Park St., Butte, MT, 59701, USA
| | - Harold W Pearson-Nadal
- Montana Tech Nanotechnology Laboratory, Montana Technological University, 1300 West Park St., Butte, MT, 59701, USA
- Materials Science Ph.D. Program, Montana Technological University, 1300 West Park St., Butte, MT, 59701, USA
| | - Jessica M Andriolo
- Mechanical Engineering Department, Montana Technological University, 1300 West Park St., Butte, MT, 59701, USA.
- Montana Tech Nanotechnology Laboratory, Montana Technological University, 1300 West Park St., Butte, MT, 59701, USA.
| | - Jack L Skinner
- Mechanical Engineering Department, Montana Technological University, 1300 West Park St., Butte, MT, 59701, USA
- Montana Tech Nanotechnology Laboratory, Montana Technological University, 1300 West Park St., Butte, MT, 59701, USA
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Velazco de Maldonado GJ, Suárez-Vega DV, Miller-Kobisher B, García-Guevara VJ. Polydioxanone Bioactive Sutures-Acetyl Hexapeptide-8 (Argireline): An Intelligent System for Controlled Release in Facial Harmonization. J Cutan Aesthet Surg 2023; 16:325-334. [PMID: 38314369 PMCID: PMC10833482 DOI: 10.4103/jcas.jcas_34_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2024] Open
Abstract
Introduction We propose a new facial lifting protocol using polydioxanone (PDO) threads embedded in acetyl hexapeptide-8 (Argireline [Arg]). We assume that Arg reinforces the effects of PDO threads, as it is a mimetic of botulinum toxin. Because the PDO suture is hydrolyzable, this assumption is analyzed by instrumental analysis. Objective To demonstrate the capacity of the PDO suture as a system for the controlled release of acetyl hexapeptide-8 to apply in deep wrinkles of the upper third. Materials and Methods Three segments of 1-cm long 21G PDO threads immersed in 1 mL of Arg. PDO threads were observed under an optical, electron microscope at 24, 48, and 72 h later. They were also weighed before and after being soaked in Arg, and employing ultraviolet (UV)-visible spectroscopy, the release rate of Arg from the PDO suture was measured. Finally, was insert the thread PDO-Arg following a protocol designed especially for deep static wrinkles in the upper third. Results The electronic weighing revealed that the PDO thread enjoys capillarity by the peptide, doubling its weight every 24 h. UV spectra revealed that PDO thread is a well-controlled release system for Arg, allowing its sustained release for 1 h. Optical and electronic photomicrographs confirm the swelling of the PDO thread by absorbing Arg by its capillarity, but this hydrophilicity does not lead to its premature physical degradation. Conclusions The PDO thread system with Arg is an intelligent bioactive system useful in facial harmonization. It recommend conduct clinical trial to verify his superior lifting effect.
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Affiliation(s)
| | - Dubraska V Suárez-Vega
- Department of Investigation, Dental Research Center, University of Los Andes, (ULA), Mérida, Venezuela
| | - Blanca Miller-Kobisher
- Academic Division, Pan-American Institute of Scientific Professionals (IPPC), Mexico City, Mexico
| | - Víctor J García-Guevara
- Academic and Research Division, Aesthetic Medicine Studies Center Foundation (FUCEME), Caracas, Venezuela
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Lin Z, Chen H, Xu J, Wang J, Wang H, Huang S, Xu S. A Review of the Release Profiles and Efficacies of Chemotherapy Drug-Loaded Electrospun Membranes. Polymers (Basel) 2023; 15:polym15020251. [PMID: 36679132 PMCID: PMC9865042 DOI: 10.3390/polym15020251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 12/25/2022] [Accepted: 12/28/2022] [Indexed: 01/05/2023] Open
Abstract
Electrospun fibrous membranes loaded with chemotherapy drugs have been broadly studied, many of which have had promising data demonstrating therapeutic effects on cancer cell inhibition, tumor size reduction, the life extension of tumor-bearing animals, and more. Nevertheless, their drug release profiles are difficult to predict since their degradation pattern varies with crystalline polymers. In addition, there is room for improving their release performances, optimizing the release patterns, and achieving better therapeutic outcomes. In this review, the key factors affecting electrospun membrane drug release profiles have been systematically reviewed. Case studies of the release profiles of typical chemotherapy drugs are carried out to determine the preferred polymer choices and techniques to achieve the expected prolonged or enhanced release profiles. The therapeutic effects of these electrospun, chemo-drug-loaded membranes are also discussed. This review aims to assist in the design of future drug-loaded electrospun materials to achieve preferred release profiles with enhanced therapeutic efficacies.
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Affiliation(s)
- Zhenyu Lin
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Hao Chen
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Jiawei Xu
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Jie Wang
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Huijing Wang
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Shifen Huang
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Shanshan Xu
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
- Correspondence: ; Tel.: +86-755-26531165
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Nanofiber Carriers of Therapeutic Load: Current Trends. Int J Mol Sci 2022; 23:ijms23158581. [PMID: 35955712 PMCID: PMC9368923 DOI: 10.3390/ijms23158581] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/26/2022] [Accepted: 07/27/2022] [Indexed: 12/10/2022] Open
Abstract
The fast advancement in nanotechnology has prompted the improvement of numerous methods for the creation of various nanoscale composites of which nanofibers have gotten extensive consideration. Nanofibers are polymeric/composite fibers which have a nanoscale diameter. They vary in porous structure and have an extensive area. Material choice is of crucial importance for the assembly of nanofibers and their function as efficient drug and biomedicine carriers. A broad scope of active pharmaceutical ingredients can be incorporated within the nanofibers or bound to their surface. The ability to deliver small molecular drugs such as antibiotics or anticancer medications, proteins, peptides, cells, DNA and RNAs has led to the biomedical application in disease therapy and tissue engineering. Although nanofibers have shown incredible potential for drug and biomedicine applications, there are still difficulties which should be resolved before they can be utilized in clinical practice. This review intends to give an outline of the recent advances in nanofibers, contemplating the preparation methods, the therapeutic loading and release and the various therapeutic applications.
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Wearable and implantable devices for drug delivery: Applications and challenges. Biomaterials 2022; 283:121435. [DOI: 10.1016/j.biomaterials.2022.121435] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 01/26/2022] [Accepted: 02/17/2022] [Indexed: 12/19/2022]
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Elsadek NE, Nagah A, Ibrahim TM, Chopra H, Ghonaim GA, Emam SE, Cavalu S, Attia MS. Electrospun Nanofibers Revisited: An Update on the Emerging Applications in Nanomedicine. MATERIALS 2022; 15:ma15051934. [PMID: 35269165 PMCID: PMC8911671 DOI: 10.3390/ma15051934] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 01/31/2022] [Accepted: 02/08/2022] [Indexed: 02/06/2023]
Abstract
Electrospinning (ES) has become a straightforward and customizable drug delivery technique for fabricating drug-loaded nanofibers (NFs) using various biodegradable and non-biodegradable polymers. One of NF's pros is to provide a controlled drug release through managing the NF structure by changing the spinneret type and nature of the used polymer. Electrospun NFs are employed as implants in several applications including, cancer therapy, microbial infections, and regenerative medicine. These implants facilitate a unique local delivery of chemotherapy because of their high loading capability, wide surface area, and cost-effectiveness. Multi-drug combination, magnetic, thermal, and gene therapies are promising strategies for improving chemotherapeutic efficiency. In addition, implants are recognized as an effective antimicrobial drug delivery system overriding drawbacks of traditional antibiotic administration routes such as their bioavailability and dosage levels. Recently, a sophisticated strategy has emerged for wound healing by producing biomimetic nanofibrous materials with clinically relevant properties and desirable loading capability with regenerative agents. Electrospun NFs have proposed unique solutions, including pelvic organ prolapse treatment, viable alternatives to surgical operations, and dental tissue regeneration. Conventional ES setups include difficult-assembled mega-sized equipment producing bulky matrices with inadequate stability and storage. Lately, there has become an increasing need for portable ES devices using completely available off-shelf materials to yield highly-efficient NFs for dressing wounds and rapid hemostasis. This review covers recent updates on electrospun NFs in nanomedicine applications. ES of biopolymers and drugs is discussed regarding their current scope and future outlook.
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Affiliation(s)
- Nehal E. Elsadek
- Department of Pharmacokinetics and Biopharmaceutics, Institute of Biomedical Sciences, Tokushima University, 1-78-1 Sho-machi, Tokushima 770-8505, Japan;
| | - Abdalrazeq Nagah
- Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (A.N.); (G.A.G.)
| | - Tarek M. Ibrahim
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (T.M.I.); (S.E.E.)
| | - Hitesh Chopra
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India;
| | - Ghada A. Ghonaim
- Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (A.N.); (G.A.G.)
| | - Sherif E. Emam
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (T.M.I.); (S.E.E.)
| | - Simona Cavalu
- Faculty of Medicine and Pharmacy, University of Oradea, P-ta 1 Decembrie 10, 410087 Oradea, Romania
- Correspondence: (S.C.); (M.S.A.)
| | - Mohamed S. Attia
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (T.M.I.); (S.E.E.)
- Correspondence: (S.C.); (M.S.A.)
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Padmakumar S, Varghese MM, Menon D. Differential Drug Release Kinetics from Paclitaxel-Loaded Polydioxanone Membranes and Capsules. RECENT ADVANCES IN DRUG DELIVERY AND FORMULATION 2022; 16:241-252. [PMID: 35796448 DOI: 10.2174/2667387816666220707143330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/04/2022] [Accepted: 04/22/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Drug laden implantable systems can provide drug release over several hours to years, which eventually aid in the therapy of both acute and chronic diseases. The present study focuses on a fundamental evaluation of the influence of implant properties such as morphology, architecture, porosity, surface area, and wettability in regulating the drug release kinetics from drug-loaded polymeric matrices. METHODS For this, Polydioxanone (PDS) was selected as the polymer and Paclitaxel (Ptx) as the model drug. Two different forms of the matrix implants, viz., reservoir type capsules developed by dip coating and matrix type membranes fabricated by phase inversion and electrospinning, were utilized for the study. Drug release from all the four different matrices prepared by simple techniques was evaluated in vitro in PBS and ex vivo in peritoneal wash fluid for ~4 weeks. The drug release profiles were thereafter correlated with the physicochemical parameters of the polymeric implants. RESULTS Reservoir-type capsules followed a slow and steady zero-order kinetics, while matrix-type electrospun and phase inversion membranes displayed typical biphasic kinetics. CONCLUSION It was inferred that the slow degradation rate of PDS polymer as well as the implant properties like porosity and wettability play an important role in controlling the drug release rates.
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Affiliation(s)
- Smrithi Padmakumar
- Centre for Nanosciences & Molecular Medicine, Amrita Institute of Medical Sciences & Research Centre, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Merin Mary Varghese
- Centre for Nanosciences & Molecular Medicine, Amrita Institute of Medical Sciences & Research Centre, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Deepthy Menon
- Centre for Nanosciences & Molecular Medicine, Amrita Institute of Medical Sciences & Research Centre, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
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Multifunctional Electrospun Nanofibers Based on Biopolymer Blends and Magnetic Tubular Halloysite for Medical Applications. Polymers (Basel) 2021; 13:polym13223870. [PMID: 34833169 PMCID: PMC8624944 DOI: 10.3390/polym13223870] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/27/2021] [Accepted: 11/03/2021] [Indexed: 11/17/2022] Open
Abstract
Tubular halloysite (HNT) is a naturally occurring aluminosilicate clay with a unique combination of natural availability, good biocompatibility, high mechanical strength, and functionality. This study explored the effects of magnetically responsive halloysite (MHNT) on the structure, morphology, chemical composition, and magnetic and mechanical properties of electrospun nanofibers based on polycaprolactone (PCL) and gelatine (Gel) blends. MHNT was prepared via a simple modification of HNT with a perchloric-acid-stabilized magnetic fluid–methanol mixture. PCL/Gel nanofibers containing 6, 9, and 12 wt.% HNT and MHNT were prepared via an electrospinning process, respecting the essential rules for medical applications. The structure and properties of the prepared nanofibers were studied using infrared spectroscopy (ATR-FTIR) and electron microscopy (SEM, STEM) along with energy-dispersive X-ray spectroscopy (EDX), magnetometry, and mechanical analysis. It was found that the incorporation of the studied concentrations of MHNT into PCL/Gel nanofibers led to soft magnetic biocompatible materials with a saturation magnetization of 0.67 emu/g and coercivity of 15 Oe for nanofibers with 12 wt.% MHNT. Moreover, by applying both HNT and MHNT, an improvement of the nanofibers structure was observed, together with strong reinforcing effects. The greatest improvement was observed for nanofibers containing 9 wt.% MHNT when increases in tensile strength reached more than two-fold and the elongation at break reached a five-fold improvement.
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Critical quality attributes in the development of therapeutic nanomedicines toward clinical translation. Drug Deliv Transl Res 2021; 10:766-790. [PMID: 32170656 DOI: 10.1007/s13346-020-00744-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Nanomedicine is a rapidly emerging field with several breakthroughs in the therapeutic drug delivery application. The unique properties of the nanoscale delivery systems offer huge advantages to their payload such as solubilization, increased bioavailability, and improved pharmacokinetics with an overall goal of enhanced therapeutic index. Nanomedicine has the potential for integrating and enabling new therapeutic modalities. Several nanoparticle-based drug delivery systems have been granted approval for clinical use based on their outstanding clinical outcomes. Nanomedicine faces several challenges that hinder the realization of its full potential. In this review, we discuss the critical formulation- and biological-related quality features that significantly influence the performance of nanoparticulate systems in vivo. We also discuss the quality-by-design approach in the pharmaceutical manufacturing and its implementation in the nanomedicine. A deep understanding of these nanomedicine quality checkpoints and a systematic design that takes them into consideration will hopefully expedite the clinical translation process. Graphical abstract.
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10
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Deng X, Qasim M, Ali A. Engineering and polymeric composition of drug-eluting suture: A review. J Biomed Mater Res A 2021; 109:2065-2081. [PMID: 33830631 DOI: 10.1002/jbm.a.37194] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 12/14/2020] [Accepted: 03/24/2021] [Indexed: 12/12/2022]
Abstract
Sutures are the most popular surgical implants in the global surgical equipment market. They are used for holding tissues together to achieve wound closure. However, controlling the body's immune response to these "foreign bodies" at site of infection is challenging. Natural polymers such as collagen, silk, nylon, and cotton, and synthetic polymers such as polycaprolactone, poly(lactic-co-glycolic acid), poly(p-dioxanone) and so forth, contribute the robust foundation for the engineering of drug-eluting sutures. The incorporation of active pharmaceutical ingredients (APIs) with polymeric composition of suture materials is an efficient way to reduce inflammatory reaction in the wound site as well as to control bacterial growth, while allowing wound healing. The incorporation of polymeric composition in surgical sutures has been found to add high flexibility as well as excellent physical and mechanical properties. Fabrication processes and polymer materials allow control over drug-eluting profiles to effectively address wound healing requirements. This review outlines and discusses (a) polymer materials and APIs used in suture applications, including absorbable and nonabsorbable sutures; (b) suture structures, such as monofilament, multifilament, barded and smart sutures; and (c) the existing manufacturing techniques for drug-eluting suture production, including electrospinning, melt-extrusion and coating.
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Affiliation(s)
- Xiaoxuan Deng
- Centre for Bioengineering and Nanomedicine (Dunedin), Faculty of Dentistry, Division of Health Sciences, University of Otago, Dunedin, New Zealand
| | - Muhammad Qasim
- Centre for Bioengineering and Nanomedicine (Dunedin), Faculty of Dentistry, Division of Health Sciences, University of Otago, Dunedin, New Zealand
| | - Azam Ali
- Centre for Bioengineering and Nanomedicine (Dunedin), Faculty of Dentistry, Division of Health Sciences, University of Otago, Dunedin, New Zealand
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Wang P, Qu X, Che X, Luo Q, Tang X, Liu Y. Pharmaceutical strategies in improving anti-tumour efficacy and safety of intraperitoneal therapy for peritoneal metastasis. Expert Opin Drug Deliv 2021; 18:1193-1210. [PMID: 33682562 DOI: 10.1080/17425247.2021.1896493] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Introduction: In selected patients with limited peritoneal metastasis (PM), favorable tumor biology, and a good clinical condition, there is an indication for combination of cytoreductive surgery (CRS) and subsequent intravenous (IV) or intraperitoneal (IP) chemotherapy. Compared with IV injection, IP therapy can achieve a high drug concentration within the peritoneal cavity with low systemic toxicity, however, the clinical application of IP chemotherapy is limited by the related abdominal pain, infection, and intolerance.Areas covered:To improve the anti-tumor efficacy and safety of IP therapy, various pharmaceutical strategies have been developed and show promising potential. This review discusses the specialized modification of traditional drug delivery systems and demonstrates the preparation of customized drug carriers for IP therapy, including chemotherapy and gene therapy. IP therapy has important clinical significance in the treatment of PM using novel anti-tumor agents as well as conventional drugs in new applications.Expert opinion: Although IP therapy exhibits good performance both in mouse models and in patients with PM in clinical trials, its clinical application remains limited due to the serious side effects and low acceptability. Further investigations, including pharmaceutical strategies, are needed to develop potential IP therapy, focusing on the efficacy and safety thereof.
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Affiliation(s)
- Puxiu Wang
- Department of Pharmacy, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xiujuan Qu
- Department of Medical Oncology, The First Hospital of China Medical University, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, China.,Liaoning Province Clinical Research Center for Cancer, China
| | - Xiaofang Che
- Department of Medical Oncology, The First Hospital of China Medical University, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, China.,Liaoning Province Clinical Research Center for Cancer, China
| | - Qiuhua Luo
- Department of Pharmacy, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xing Tang
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Yunpeng Liu
- Department of Medical Oncology, The First Hospital of China Medical University, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, China.,Liaoning Province Clinical Research Center for Cancer, China
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A review of smart electrospun fibers toward textiles. COMPOSITES COMMUNICATIONS 2020; 22:100506. [PMCID: PMC7497400 DOI: 10.1016/j.coco.2020.100506] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/12/2020] [Accepted: 09/14/2020] [Indexed: 05/24/2023]
Abstract
Electrospinning as a versatile technology has attracted a large amount of attention in the past few decades due to the facile way to produce micro- and nano-scale fibers featuring flexibility, large specific surface area and high porosity. Stimuli-responsive polymers are a class of smart materials that are capable of sensing surround environment and interacting with them. Therefore, the combination of electrospinning and smart materials could have a great deal of benefits over the development of smart fibers. In this review, it offers a comprehensive understanding of smart electrospun fibers toward textile applications. Firstly, the definition of smart fibers and the differences between interactive fibers and passive interactive fibers are briefly introduced. Then some interactive fibers made from temperature-, pH-, light-, electric field/electricity-, magnetic field-, multi-responsive polymers, as well as some polymers featuring piezoelectric and triboelectric effect which are suitable flexible electrics, are emphasized with their applications in the form of electrospun fibers. Afterwards, some passive and hybrid smart electrospun fibers are introduced. Finally, associated challenges and perspectives are summarized and discussed. Understanding of passive smart electrospun fibers and interactive smart electrospun fibers. The recent progress in flexible electronics from electrospun fibers. The recent progress in stimuli-responsive polymers applied in interactive smart electrospun fibers.
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Adeleke OA. In vitro characterization of a synthetic polyamide-based erodible compact disc for extended drug release. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-03954-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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14
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Mamun A. Detailed thermal analysis of crystallization kinetics and band morphology for future blending of absorbable poly(
p
‐dioxanone) monofilament surgical suture with poly(ε‐caprolactone). POLYM INT 2020. [DOI: 10.1002/pi.6150] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Al Mamun
- Department of Physics, College of Science University of Hafr Al Batin, Al Jamiah Hafr Al Batin Saudi Arabia
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15
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O’Dwyer J, O’Cearbhaill RE, Wylie R, O’Mahony S, O’Dwyer M, Duffy GP, Dolan EB. Enhancing delivery of small molecule and cell-based therapies for ovarian cancer using advanced delivery strategies. ADVANCED THERAPEUTICS 2020; 3:2000144. [PMID: 33709016 PMCID: PMC7942751 DOI: 10.1002/adtp.202000144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Indexed: 12/17/2022]
Abstract
Ovarian cancer is the most lethal gynecological malignancy with a global five-year survival rate of 30-50%. First-line treatment involves cytoreductive surgery and administration of platinum-based small molecules and paclitaxel. These therapies were traditionally administered via intravenous infusion, although intraperitoneal delivery has also been investigated. Initial clinical trials of intraperitoneal administration for ovarian cancer indicated significant improvements in overall survival compared to intravenous delivery, but this result is not consistent across all studies performed. Recently cell-based immunotherapy has been of interest for ovarian cancer. Direct intraperitoneal delivery of cell-based immunotherapies might prompt local immunoregulatory mechanisms to act synergistically with the delivered immunotherapy. Based on this theory, pre-clinical in vivo studies have delivered these cell-based immunotherapies via the intraperitoneal route, with promising results. However, successful intraperitoneal delivery of cell-based immunotherapy and clinical adoption of this technique will depend on overcoming challenges of intraperitoneal delivery and finding the optimal combinations of dose, therapeutic and delivery route. We review the potential advantages and disadvantages of intraperitoneal delivery of cell-based immunotherapy for ovarian cancer and the pre-clinical and clinical work performed so far. Potential advanced delivery strategies, which might improve the efficacy and adoption of intraperitoneal delivery of therapy for ovarian cancer, are also outlined.
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Affiliation(s)
- Joanne O’Dwyer
- Department of Biomedical Engineering, School of Engineering, College of Science and Engineering, National University of Ireland Galway, Ireland; Anatomy & Regenerative Medicine Institute, School of Medicine, College of Medicine Nursing and Health Sciences, National University of Ireland Galway, Ireland
| | - Roisin E. O’Cearbhaill
- Anatomy & Regenerative Medicine Institute, School of Medicine, College of Medicine Nursing and Health Sciences, National University of Ireland Galway, Ireland; Department of Medical Oncology, Memorial Sloan Kettering Cancer Center, New York City, New York, USA
| | - Robert Wylie
- Anatomy & Regenerative Medicine Institute, School of Medicine, College of Medicine Nursing and Health Sciences, National University of Ireland Galway, Ireland
| | - Saoirse O’Mahony
- Department of Biomedical Engineering, School of Engineering, College of Science and Engineering, National University of Ireland Galway, Ireland
| | - Michael O’Dwyer
- Apoptosis Research Centre, National University of Ireland Galway, Ireland
| | - Garry P. Duffy
- Anatomy & Regenerative Medicine Institute, School of Medicine, College of Medicine Nursing and Health Sciences, National University of Ireland Galway, Ireland
| | - Eimear B. Dolan
- Department of Biomedical Engineering, School of Engineering, College of Science and Engineering, National University of Ireland Galway, Ireland
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Si X, Ji G, Ma S, Xu Y, Zhao J, Huang Z, Zhang Y, Song W, Tang Z. Biodegradable Implants Combined with Immunogenic Chemotherapy and Immune Checkpoint Therapy for Peritoneal Metastatic Carcinoma Postoperative Treatment. ACS Biomater Sci Eng 2020; 6:5281-5289. [PMID: 33455277 DOI: 10.1021/acsbiomaterials.0c00840] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Peritoneal seeding represents one of the most frequent sites of metastasis for late-stage gastrointestinal and gynecological cancer. At present, the major treatment method for peritoneal metastatic carcinoma (PMC) is the combination of cytoreductive surgery (CRS) with hyperthermic intraperitoneal chemotherapy (HIPEC). Nevertheless, the 5 year survival rate of patients after these treatments is still far from satisfactory. Here, we report a biodegradable implant co-loaded with doxorubicin (DOX) and anti-PD-1 monoclonal antibody (aPD-1) (BI@DOX+aPD-1) for a combination of immunogenic chemotherapy and immune checkpoint therapy for PMC postoperative treatment. The bio-implant is fabricated with oxidized dextran (ODEX) and 4-arm poly(ethylene glycol) amine (4-arm PEG-NH2) by Schiff's base reaction at mild conditions, with DOX and aPD-1 loaded inside during and after the fabrication process, respectively. In vitro studies confirmed the slow and sustained release of DOX and aPD-1 from the bio-implants. In vivo studies showed that the bio-implants could be gradually degraded and maintain relatively high concentrations of therapeutic agents in the mouse abdomen. In a murine CT26 PMC model, the BI@DOX+aPD-1 resulted in a 89.7% tumor-suppression rate after peritoneal implantation. Importantly, the combination therapy of DOX and aPD-1 in the bio-implant showed an excellent synergistic effect with a Q value of 2.35. This easy-fabricated bio-implant combined with DOX and aPD-1 should be promising for clinical PMC postoperative treatment.
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Affiliation(s)
- Xinghui Si
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Guofeng Ji
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,Department of Gastrointestinal Surgery, China-Japan Union Hospital of Jilin University, Changchun 130021, P. R. China
| | - Sheng Ma
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,Jilin Biomedical Polymers Engineering Laboratory, Changchun 130022, P. R. China
| | - Yudi Xu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Jiayu Zhao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Zichao Huang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Yu Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,Jilin Biomedical Polymers Engineering Laboratory, Changchun 130022, P. R. China
| | - Wantong Song
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,Jilin Biomedical Polymers Engineering Laboratory, Changchun 130022, P. R. China
| | - Zhaohui Tang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China.,Jilin Biomedical Polymers Engineering Laboratory, Changchun 130022, P. R. China
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17
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Alavi S, Haeri A, Mahlooji I, Dadashzadeh S. Tuning the Physicochemical Characteristics of Particle-Based Carriers for Intraperitoneal Local Chemotherapy. Pharm Res 2020; 37:119. [DOI: 10.1007/s11095-020-02818-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 04/06/2020] [Indexed: 12/12/2022]
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18
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Xie Y, Hillmyer MA. Nanostructured Polymer Monoliths for Biomedical Delivery Applications. ACS APPLIED BIO MATERIALS 2020; 3:3236-3247. [PMID: 35025366 DOI: 10.1021/acsabm.0c00228] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Drug delivery systems are designed to control the release rate and location of therapeutic agents in the body to achieve enhanced drug efficacy and to mitigate adverse side effects. In particular, drug-releasing implants provide sustained and localized release. We report nanostructured polymer monoliths synthesized by polymerization-induced microphase separation (PIMS) as potential implantable delivery devices. As a model system, free poly(ethylene oxide) homopolymers were incorporated into the nanoscopic poly(ethylene oxide) domains contained within a cross-linked polystyrene matrix. The in vitro release of these poly(ethylene oxide) molecules from monoliths was investigated as a function of poly(ethylene oxide) loading and molar mass as well as the molar mass and weight fraction of poly(ethylene oxide) macro-chain transfer agent used in the PIMS process for forming the monoliths. We also developed nanostructured microneedles targeting efficient and long-term transdermal drug delivery by combining PIMS and microfabrication techniques. Finally, given the prominence of poly(lactide) in drug delivery devices, the degradation rate of microphase-separated poly(lactide) in PIMS monoliths was evaluated and compared with bulk poly(lactide).
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Affiliation(s)
- Yihui Xie
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Marc A Hillmyer
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
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19
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Padmakumar S, Menon D. Nanofibrous Polydioxanone Depots for Prolonged Intraperitoneal Paclitaxel Delivery. Curr Drug Deliv 2020; 16:654-662. [PMID: 31418659 DOI: 10.2174/1567201816666190816102949] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Revised: 01/11/2019] [Accepted: 07/19/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND Prolonged chemodrug delivery to the tumor site is a prerequisite to maintaining its localised therapeutic concentrations for effective treatment of malignant solid tumors. OBJECTIVE The current study aims to develop implantable polymeric depots through conventional electrospinning for sustained drug delivery, specifically to the peritoneum. METHODS Non-woven electrospun mats were fabricated by simple electrospinning of Polydioxanone solution loaded with the chemodrug, Paclitaxel. The implants were subjected to the analysis of morphology, mechanical properties, degradation and drug release in phosphate buffer and patient-derived peritoneal drain fluid samples. In vivo studies were conducted by surgical knotting of these implants to the peritoneal wall of healthy mice. RESULTS Non-woven electrospun mats with a thickness of 0.65±0.07 mm, weighing ~ 20 mg were fabricated by electrospinning 15 w/v% polymer loaded with 10 w/w% drug. These implants possessing good mechanical integrity showed a drug entrapment efficiency of 87.82±2.54 %. In vitro drug release studies in phosphate buffer showed a sustained profile for ~4 weeks with a burst of 10 % of total drug content, whereas this amounted to >60% in patient samples. Mice implanted with these depots remained healthy during the study period. The biphasic drug release profile obtained in vivo showed a slow trend, with peritoneal lavage and tissues retaining good drug concentrations for a sustained period. CONCLUSION The results indicate that non-woven electrospun mats developed from biodegradable Polydioxanone polymer can serve as ideal candidates for easily implantable drug depots to address the challenges of peritoneal metastasis in ovarian cancer.
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Affiliation(s)
- Smrithi Padmakumar
- Centre for Nanosciences & Molecular Medicine, Amrita Institute of Medical Sciences & Research Centre, Amrita Vishwa Vidyapeetham, Kochi, Kerala-682041, India
| | - Deepthy Menon
- Centre for Nanosciences & Molecular Medicine, Amrita Institute of Medical Sciences & Research Centre, Amrita Vishwa Vidyapeetham, Kochi, Kerala-682041, India
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20
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Saha K, Dutta K, Basu A, Adhikari A, Chattopadhyay D, Sarkar P. Controlled delivery of tetracycline hydrochloride intercalated into smectite clay using polyurethane nanofibrous membrane for wound healing application. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.nanoso.2019.100418] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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21
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Strategies for Targeting Cancer Immunotherapy Through Modulation of the Tumor Microenvironment. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2019. [DOI: 10.1007/s40883-019-00113-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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22
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Padmakumar S, Parayath NN, Nair SV, Menon D, Amiji MM. Enhanced anti-tumor efficacy and safety with metronomic intraperitoneal chemotherapy for metastatic ovarian cancer using biodegradable nanotextile implants. J Control Release 2019; 305:29-40. [PMID: 31103675 PMCID: PMC6602817 DOI: 10.1016/j.jconrel.2019.05.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Revised: 05/03/2019] [Accepted: 05/13/2019] [Indexed: 01/20/2023]
Abstract
The objective of this study was to evaluate intraperitoneal (IP) metronomic chemotherapy using sustained release paclitaxel (PTX) delivery from electrospun biodegradable polymeric yarns woven into suturable nanotextiles. Following confirmation of in vitro PTX efficacy in ID8-VEGF epithelial ovarian cancer cells, in vivo studies were performed upon surgical peritoneal implantation of nanotextile implants in orthotopic, syngeneic ID8-VEGF tumor-bearing C57BL/6 mice. In comparison to the clinical PTX-solution, there was a significant enhancement of anti-tumor efficacy and safety with PTX-nanotextiles. After 35-days, the peritoneum of tumor-bearing mice with PTX-nanotextiles was completely devoid of tumor nodules and ascitic fluid. Additionally, VEGF levels measured in peritoneal lavage fluid were 300-fold lower compared to PTX-solution and 600-fold lower as compared to untreated tumor-bearing animals. PTX-solution treated group also developed severe metastatic lesions and progressive ascitic fluid buildup. More importantly, no signs of systemic/ organ toxicity were observed in PTX-nanotextile implanted mice, unlike the systemic toxic effects induced by PTX-solution. Collectively, our results show the therapeutic and safety advantages offered by combining clinically translatable metronomic low-dose chemotherapy and IP pharmacokinetics using biodegradable nanotextile implants in addressing the challenges of late-stage ovarian cancer.
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Affiliation(s)
- Smrithi Padmakumar
- Department of Pharmaceutical Sciences, School of Pharmacy, Northeastern University, Boston, MA 02115, USA; Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Neha N Parayath
- Department of Pharmaceutical Sciences, School of Pharmacy, Northeastern University, Boston, MA 02115, USA
| | - Shantikumar V Nair
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Deepthy Menon
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India.
| | - Mansoor M Amiji
- Department of Pharmaceutical Sciences, School of Pharmacy, Northeastern University, Boston, MA 02115, USA.
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23
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Pisani S, Dorati R, Chiesa E, Genta I, Modena T, Bruni G, Grisoli P, Conti B. Release Profile of Gentamicin Sulfate from Polylactide- co-Polycaprolactone Electrospun Nanofiber Matrices. Pharmaceutics 2019; 11:E161. [PMID: 30987212 PMCID: PMC6523179 DOI: 10.3390/pharmaceutics11040161] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 03/28/2019] [Accepted: 03/30/2019] [Indexed: 11/30/2022] Open
Abstract
The advent and growth of resistance phenomena to antibiotics has reached critical levels, invalidating the action of a majority of antibiotic drugs currently used in the clinical field. Several innovative techniques, such as the nanotechnology, can be applied for creating innovative drug delivery systems designed to modify drug release itself and/or drug administration route; moreover, they have proved suitable for overcoming the phenomenon of antibiotic resistance. Electrospun nanofibers, due to their useful structural properties, are showing promising results as antibiotic release devices for preventing bacteria biofilm formation after surgical operation and for limiting resistance phenomena. In this work gentamicin sulfate (GS) was loaded into polylactide-co-polycaprolactone (PLA-PCL) electrospun nanofibers; quantification and in vitro drug release profiles in static and dynamic conditions were investigated; GS kinetic release from nanofibers was studied using mathematical models. A preliminary microbiological test was carried out towards Staphylococcus aureus and Escherichia coli bacteria.
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Affiliation(s)
- Silvia Pisani
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy.
| | - Rossella Dorati
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy.
- Polymerix S.r.l., Via Taramelli 24, 27100 Pavia, Italy.
| | - Enrica Chiesa
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy.
| | - Ida Genta
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy.
| | - Tiziana Modena
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy.
- Polymerix S.r.l., Via Taramelli 24, 27100 Pavia, Italy.
| | - Giovanna Bruni
- Department of Chemistry, University of Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy.
| | - Pietro Grisoli
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy.
| | - Bice Conti
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy.
- Polymerix S.r.l., Via Taramelli 24, 27100 Pavia, Italy.
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