1
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Han H, Santos HA. Nano- and Micro-Platforms in Therapeutic Proteins Delivery for Cancer Therapy: Materials and Strategies. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2409522. [PMID: 39263818 DOI: 10.1002/adma.202409522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Revised: 08/26/2024] [Indexed: 09/13/2024]
Abstract
Proteins have emerged as promising therapeutics in oncology due to their great specificity. Many treatment strategies are developed based on protein biologics, such as immunotherapy, starvation therapy, and pro-apoptosis therapy, while some protein biologics have entered the clinics. However, clinical translation is severely impeded by instability, short circulation time, poor transmembrane transportation, and immunogenicity. Micro- and nano-particles-based drug delivery platforms are designed to solve those problems and enhance protein therapeutic efficacy. This review first summarizes the different types of therapeutic proteins in clinical and research stages, highlighting their administration limitations. Next, various types of micro- and nano-particles are described to demonstrate how they can overcome those limitations. The potential of micro- and nano-particles are then explored to enhance the therapeutic efficacy of proteins by combinational therapies. Finally, the challenges and future directions of protein biologics carriers are discussed for optimized protein delivery.
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Affiliation(s)
- Huijie Han
- Department of Biomaterials and Biomedical Technology, The Personalized Medicine Research Institute (PRECISION), University Medical Center Groningen (UMCG), University of Groningen, Ant. Deusinglaan 1, Groningen, 9713 AV, The Netherlands
| | - Hélder A Santos
- Department of Biomaterials and Biomedical Technology, The Personalized Medicine Research Institute (PRECISION), University Medical Center Groningen (UMCG), University of Groningen, Ant. Deusinglaan 1, Groningen, 9713 AV, The Netherlands
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, FI-00014, Finland
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2
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Refaat A, Ibrahim MA, Shehata D, Elhaes H, Ibrahim A, Mamatkulov K, Arzumanyan G. Design, characterization and implementation of cost-effective sodium alginate/water hyacinth microspheres for remediation of lead and cadmium from wastewater. Int J Biol Macromol 2024; 277:133765. [PMID: 38992549 DOI: 10.1016/j.ijbiomac.2024.133765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 06/30/2024] [Accepted: 07/07/2024] [Indexed: 07/13/2024]
Abstract
The aquatic plant water hyacinth was dried then cross-linked with sodium alginate to produce ionic cross-linked microspheres. The mechanism of controlling cadmium (Cd) and lead (Pb) in wastewater was tested by DFT at B3LYP level using LANL2DZ basis set. Modeling results indicated that the hydrated metals could interact with sodium alginate (SA)/water hyacinth (WH) microspheres through hydrogen bonding. Adsorption energies showed comparable results while total dipole moment and HOMO/LUMO band gap energy showed slight selectivity towards the remediation of Pb. FTIR spectra of cross-linked microspheres indicated that WH is forming a composite with SA to change its structure into a microsphere to remove Cd and Pb from water. Raman mapping revealed that the active sites along the surface of the microspheres enable for possible adsorption of metals through its surface. This finding is supported by molecular electrostatic potential and optical confocal microscopy. Atomic absorption spectroscopy results confirmed that the microspheres are more selective for Pb than Cd. It could be concluded that WH cross-linked with SA showed the potential to remove heavy metals through its unique active surface as confirmed by both molecular modeling and experimental findings.
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Affiliation(s)
- Ahmed Refaat
- Spectroscopy Department, National Research Centre, 33 El-Bohouth St., 12622 Dokki, Giza, Egypt; Molecular Modeling and Spectroscopy Laboratory, Centre of Excellence for Advanced Science, National Research Centre, 33 El-Bohouth St., 12622 Dokki, Giza, Egypt
| | - Medhat A Ibrahim
- Spectroscopy Department, National Research Centre, 33 El-Bohouth St., 12622 Dokki, Giza, Egypt; Molecular Modeling and Spectroscopy Laboratory, Centre of Excellence for Advanced Science, National Research Centre, 33 El-Bohouth St., 12622 Dokki, Giza, Egypt.
| | - Dina Shehata
- Physics Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo 11757, Egypt
| | - Hanan Elhaes
- Physics Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo 11757, Egypt
| | - Asmaa Ibrahim
- Physics Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo 11757, Egypt
| | - Kahramon Mamatkulov
- Department of Raman Spectroscopy, Frank Lab. of Neutron Physics, Joint Institute for Nuclear Research, Russia
| | - Grigory Arzumanyan
- Department of Raman Spectroscopy, Frank Lab. of Neutron Physics, Joint Institute for Nuclear Research, Russia
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3
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Ahadi HM, Fardhan FM, Rahayu D, Pratiwi R, Hasanah AN. Molecularly Imprinted Microspheres in Active Compound Separation from Natural Product. Molecules 2024; 29:4043. [PMID: 39274891 PMCID: PMC11396677 DOI: 10.3390/molecules29174043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2024] [Revised: 08/13/2024] [Accepted: 08/23/2024] [Indexed: 09/16/2024] Open
Abstract
Molecularly Imprinted Microspheres (MIMs) or Microsphere Molecularly Imprinted Polymers represent an innovative design for the selective extraction of active compounds from natural products, showcasing effectiveness and cost-efficiency. MIMs, crosslinked polymers with specific binding sites for template molecules, overcome irregularities observed in traditional Molecularly Imprinted Polymers (MIPs). Their adaptability to the shape and size of target molecules allows for the capture of compounds from complex mixtures. This review article delves into exploring the potential practical applications of MIMs, particularly in the extraction of active compounds from natural products. Additionally, it provides insights into the broader development of MIM technology for the purification of active compounds. The synthesis of MIMs encompasses various methods, including precipitation polymerization, suspension polymerization, Pickering emulsion polymerization, and Controlled/Living Radical Precipitation Polymerization. These methods enable the formation of MIPs with controlled particle sizes suitable for diverse analytical applications. Control over the template-to-monomer ratio, solvent type, reaction temperature, and polymerization time is crucial to ensure the successful synthesis of MIPs effective in isolating active compounds from natural products. MIMs have been utilized to isolate various active compounds from natural products, such as aristolochic acids from Aristolochia manshuriensis and flavonoids from Rhododendron species, among others. Based on the review, suspension polymerization deposition, which is one of the techniques used in creating MIPs, can be classified under the MIM method. This is due to its ability to produce polymers that are more homogeneous and exhibit better selectivity compared to traditional MIP techniques. Additionally, this method can achieve recovery rates ranging from 94.91% to 113.53% and purities between 86.3% and 122%. The suspension polymerization process is relatively straightforward, allowing for the effective control of viscosity and temperature. Moreover, it is cost-effective as it utilizes water as the solvent.
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Affiliation(s)
- Husna Muharram Ahadi
- Pharmaceutical Analysis and Medicinal Chemistry Department, Faculty of Pharmacy, Universitas Padjadjaran, Bandung 45363, Indonesia
| | - Firghi Muhammad Fardhan
- Pharmaceutical Analysis and Medicinal Chemistry Department, Faculty of Pharmacy, Universitas Padjadjaran, Bandung 45363, Indonesia
| | - Driyanti Rahayu
- Pharmaceutical Analysis and Medicinal Chemistry Department, Faculty of Pharmacy, Universitas Padjadjaran, Bandung 45363, Indonesia
| | - Rimadani Pratiwi
- Pharmaceutical Analysis and Medicinal Chemistry Department, Faculty of Pharmacy, Universitas Padjadjaran, Bandung 45363, Indonesia
| | - Aliya Nur Hasanah
- Pharmaceutical Analysis and Medicinal Chemistry Department, Faculty of Pharmacy, Universitas Padjadjaran, Bandung 45363, Indonesia
- Drug Development Study Center, Faculty of Pharmacy, Universitas Padjadjaran, Bandung 45363, Indonesia
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4
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Oguzlu H, Baldelli A, Mohammadi X, Kong A, Bacca M, Pratap-Singh A. Cold Plasma for the Modification of the Surface Roughness of Microparticles. ACS OMEGA 2024; 9:35634-35644. [PMID: 39184515 PMCID: PMC11339808 DOI: 10.1021/acsomega.4c03787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 07/12/2024] [Accepted: 07/18/2024] [Indexed: 08/27/2024]
Abstract
Cold plasma treatment is commonly used for sterilization. However, another potential of cold plasma treatment is surface modification. To date, several efforts have been directed toward investigating the effect of cold plasma treatment in modifying the surfaces of films. Here, the impact of suspension properties and parameters of cold plasma treatment on the changes of surfaces of monodisperse polymeric microparticles is tested. The plasma treatment did not touch the surface chemistry of the monodisperse polymeric microparticles. The concentration of suspensions of 1 mg/mL was determined to relate to a stronger effect of the plasma treatment on the roughness of the microparticles. Microparticles with an average diameter of 20 μm show a roughness increase with the plasma treatment time. However, a plasma treatment time longer than 15 min damages the microparticles, as observed in particles with an average diameter of 20 and 50 μm. We finally prototyped monodisperse microparticles to deliver drugs to the nasal mucosa by studying the effect of roughness in their (undesired) self-adhesion and (desired) adhesion with tissue. A moderate roughness, with an average peak-to-valley distance of 500 nm, appears to be the most effective in reducing the detachment forces with nasal tissue by up to 5 mN.
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Affiliation(s)
- Hale Oguzlu
- Faculty
of Dentistry, Department of Oral Biological and Medical Sciences, University of British Columbia, Vancouver V6T 1Z4, Canada
- Sustainable
Functional Biomaterials Laboratory, Department of Wood Science, The University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
- School
of Chemical Engineering, The University
of Queensland, Brisbane, Queensland 4072, Australia
| | - Alberto Baldelli
- School
of Agriculture and Food Sustainability, The University of Queensland, Brisbane 4072, Australia
- Queensland
Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane 4067, Australia
- Faculty of
Food and Land Systems, The University of
British Columbia, Vancouver V6T 1Z4, Canada
| | - Xanyar Mohammadi
- Faculty of
Food and Land Systems, The University of
British Columbia, Vancouver V6T 1Z4, Canada
| | - Albert Kong
- Department
of Mechanical Engineering, The University
of British Columbia, Vancouver V6T 1Z4, Canada
| | - Mattia Bacca
- Department
of Mechanical Engineering, The University
of British Columbia, Vancouver V6T 1Z4, Canada
| | - Anubhav Pratap-Singh
- Faculty of
Food and Land Systems, The University of
British Columbia, Vancouver V6T 1Z4, Canada
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5
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Yan F, Huang Z, Li Q, Xu S, Nie C, Xia X, Yang F. Preparation and Performance Evaluation of a New Type of Polyethylene-vinyl Acetate/Polystyrene Microsphere Composite Pour Point Depressant for Waxy Crude Oil. ACS OMEGA 2024; 9:30873-30883. [PMID: 39035962 PMCID: PMC11256350 DOI: 10.1021/acsomega.4c03728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 06/17/2024] [Accepted: 06/19/2024] [Indexed: 07/23/2024]
Abstract
Polymer/inorganic nanocomposite pour point depressant (PPD) is a research hotspot in the field of waxy crude oil pipelining. However, the inorganic nanoparticles need to be organically modified to improve their organic compatibility, and the inorganic nanoparticles are harmful to crude oil refining. In this work, organic PSMS with an average size of 1.4 μm was first synthesized by dispersion polymerization. Then, a new type of EVA/PSMS composite PPD was prepared by melt blending. The effects of the PSMS, EVA PPD, and composite PPD on the pour point, rheological properties, and wax precipitating properties of a specific waxy crude oil were investigated. It was found that adding 50-200 ppm of PSMS alone slightly improves the crude oil rheology through a spatial hindrance effect, while adding 20 ppm of EVA PPD greatly improves the crude oil rheology by modifying the wax crystal morphology. Compared with EVA PPD, adding 20 ppm composite PPD improves the crude oil rheology further, and the rheological improving ability first enhances and then weakens with increasing the PSMS content in the composite PPD (0-10 wt %). At the PSMS content in the composite PPD 5 wt %, the EVA/PSMS 5% composite PPD makes the wax crystal aggregates more compact, thus showing the strongest rheological improving ability. The EVA molecules could adsorb on the PSMS and form the composite particles, which further regulate the wax crystal morphology and then improve the crude oil rheology further.
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Affiliation(s)
- Feng Yan
- PipeChina Research Institute of Science and Technology, Tianjin 300450, PR China
| | - Ziming Huang
- College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao, Shandong 266580, PR China
| | - Qifu Li
- PipeChina Research Institute of Science and Technology, Tianjin 300450, PR China
| | - Shengbin Xu
- College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao, Shandong 266580, PR China
| | - Chaofei Nie
- PipeChina Research Institute of Science and Technology, Tianjin 300450, PR China
| | - Xue Xia
- College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao, Shandong 266580, PR China
| | - Fei Yang
- College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao, Shandong 266580, PR China
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6
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Li X, Li L, Wang D, Zhang J, Yi K, Su Y, Luo J, Deng X, Deng F. Fabrication of polymeric microspheres for biomedical applications. MATERIALS HORIZONS 2024; 11:2820-2855. [PMID: 38567423 DOI: 10.1039/d3mh01641b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Polymeric microspheres (PMs) have attracted great attention in the field of biomedicine in the last several decades due to their small particle size, special functionalities shown on the surface and high surface-to-volume ratio. However, how to fabricate PMs which can meet the clinical needs and transform laboratory achievements to industrial scale-up still remains a challenge. Therefore, advanced fabrication technologies are pursued. In this review, we summarize the technologies used to fabricate PMs, including emulsion-based methods, microfluidics, spray drying, coacervation, supercritical fluid and superhydrophobic surface-mediated method and their advantages and disadvantages. We also review the different structures, properties and functions of the PMs and their applications in the fields of drug delivery, cell encapsulation and expansion, scaffolds in tissue engineering, transcatheter arterial embolization and artificial cells. Moreover, we discuss existing challenges and future perspectives for advancing fabrication technologies and biomedical applications of PMs.
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Affiliation(s)
- Xuebing Li
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China.
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, P. R. China
| | - Luohuizi Li
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China.
| | - Dehui Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China.
| | - Jun Zhang
- Shandong Pharmaceutical Glass Co. Ltd, Zibo, 256100, P. R. China
| | - Kangfeng Yi
- Shandong Pharmaceutical Glass Co. Ltd, Zibo, 256100, P. R. China
| | - Yucai Su
- Shandong Pharmaceutical Glass Co. Ltd, Zibo, 256100, P. R. China
| | - Jing Luo
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China.
| | - Xu Deng
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China.
- Shenzhen Institute for Advanced Study, University of Electronic Science and Technology of China, Shenzhen, 518110, P. R. China
| | - Fei Deng
- Department of Nephrology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
- Department of Nephrology, Sichuan Provincial People's Hospital Jinniu Hospital, Chengdu Jinniu District People's Hospital, Chengdu 610054, P. R. China.
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7
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Çalbaş B, Keobounnam AN, Korban C, Doratan AJ, Jean T, Sharma AY, Wright TA. Protein-polymer bioconjugation, immobilization, and encapsulation: a comparative review towards applicability, functionality, activity, and stability. Biomater Sci 2024; 12:2841-2864. [PMID: 38683585 DOI: 10.1039/d3bm01861j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Polymer-based biomaterials have received a lot of attention due to their biomedical, agricultural, and industrial potential. Soluble protein-polymer bioconjugates, immobilized proteins, and encapsulated proteins have been shown to tune enzymatic activity, improved pharmacokinetic ability, increased chemical and thermal stability, stimuli responsiveness, and introduced protein recovery. Controlled polymerization techniques, increased protein-polymer attachment techniques, improved polymer surface grafting techniques, controlled polymersome self-assembly, and sophisticated characterization methods have been utilized for the development of well-defined polymer-based biomaterials. In this review we aim to provide a brief account of the field, compare these methods for engineering biomaterials, provide future directions for the field, and highlight impacts of these forms of bioconjugation.
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Affiliation(s)
- Berke Çalbaş
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, USA.
| | - Ashley N Keobounnam
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, USA.
| | - Christopher Korban
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, USA
| | - Ainsley Jade Doratan
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, USA.
| | - Tiffany Jean
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, USA.
| | - Aryan Yashvardhan Sharma
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, USA.
| | - Thaiesha A Wright
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, USA.
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8
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Zhou M, Lin X, Wang L, Yang C, Yu Y, Zhang Q. Preparation and Application of Hemostatic Hydrogels. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309485. [PMID: 38102098 DOI: 10.1002/smll.202309485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/28/2023] [Indexed: 12/17/2023]
Abstract
Hemorrhage remains a critical challenge in various medical settings, necessitating the development of advanced hemostatic materials. Hemostatic hydrogels have emerged as promising solutions to address uncontrolled bleeding due to their unique properties, including biocompatibility, tunable physical characteristics, and exceptional hemostatic capabilities. In this review, a comprehensive overview of the preparation and biomedical applications of hemostatic hydrogels is provided. Particularly, hemostatic hydrogels with various materials and forms are introduced. Additionally, the applications of hemostatic hydrogels in trauma management, surgical procedures, wound care, etc. are summarized. Finally, the limitations and future prospects of hemostatic hydrogels are discussed and evaluated. This review aims to highlight the biomedical applications of hydrogels in hemorrhage management and offer insights into the development of clinically relevant hemostatic materials.
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Affiliation(s)
- Minyu Zhou
- The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325035, China
| | - Xiang Lin
- Pharmaceutical Sciences Laboratory, Åbo Akademi University, Turku, 20520, Finland
| | - Li Wang
- Pharmaceutical Sciences Laboratory, Åbo Akademi University, Turku, 20520, Finland
| | - Chaoyu Yang
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang, 325001, China
| | - Yunru Yu
- Pharmaceutical Sciences Laboratory, Åbo Akademi University, Turku, 20520, Finland
| | - Qingfei Zhang
- The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325035, China
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang, 325001, China
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9
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Gao F, Rafiq M, Cong H, Yu B, Shen Y. Current research status and development prospects of embolic microspheres containing biological macromolecules and others. Int J Biol Macromol 2024; 267:131494. [PMID: 38608974 DOI: 10.1016/j.ijbiomac.2024.131494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/27/2024] [Accepted: 04/08/2024] [Indexed: 04/14/2024]
Abstract
Transcatheter arterial embolization (TACE) has been used in the treatment of malignant tumors, sudden hemorrhage, uterine fibroids, and other diseases, and with advances in imaging techniques and devices, materials science, and drug release technology, more and more embolic agents that are drug-carrying, self-imaging, or have multiple functions are being developed. Microspheres provide safer and more effective therapeutic results as embolic agents, with their unique spherical appearance and good embolic properties. Embolic microspheres are the key to arterial embolization, blocking blood flow and nutrient supply to the tumor target. This review summarizes some of the currently published embolic microspheres, classifies embolic microspheres according to matrix, and summarizes the characteristics of the microsphere materials, the current status of research, directions, and the value of existing and potential applications. It provides a direction to promote the development of embolic microspheres towards multifunctionalization, and provides a reference to promote the research and application of embolic microspheres in the treatment of tumors.
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Affiliation(s)
- Fengyuan Gao
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China
| | - Muhammad Rafiq
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China
| | - Hailin Cong
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China; State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China; School of Materials Science and Engineering, Shandong University of Technology, Zibo 255000, China.
| | - Bing Yu
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China; State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China.
| | - Youqing Shen
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China; Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Center for Bionanoengineering, and Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
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10
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Liao J, Zhou Y, Zhao X, Hou B, Zhang J, Huang H. Chitin microspheres: From fabrication to applications. Carbohydr Polym 2024; 329:121773. [PMID: 38286547 DOI: 10.1016/j.carbpol.2023.121773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/28/2023] [Accepted: 12/29/2023] [Indexed: 01/31/2024]
Abstract
Chitin microspheres (CMs) have attracted increasing attention due to their biocompatibility, uniform size and shape, large surface area, and porous structure. Considerable research efforts have been focused on developing CMs and promoting their applications in various areas. In this context, this review aims to describe the most recent progress in the fabrication and application of CMs. Different routes that can be used to prepare CMs, such as the drip method and the emulsion method, are emphatically introduced. Moreover, the applications of CMs as drug delivery systems, wound dressings, three-dimensional (3D) scaffolds, water purification, and functional supporting materials in the fields of biomedicine, tissue engineering, environmental protection, and energy storage are also highlighted. We hope this review can provide a comprehensive and useful database for further innovation of CMs.
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Affiliation(s)
- Jing Liao
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China; Meat Processing Key Laboratory of Sichuan Province, Chengdu University, Chengdu 610106, China.
| | - Yuhang Zhou
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Xingyue Zhao
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Bo Hou
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Jiamin Zhang
- Meat Processing Key Laboratory of Sichuan Province, Chengdu University, Chengdu 610106, China.
| | - Huihua Huang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China.
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11
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Nuzulia NA, Mart T, Ahmed I, Sari YW. The Use of Microspheres for Cancer Embolization Therapy: Recent Advancements and Prospective. ACS Biomater Sci Eng 2024; 10:637-656. [PMID: 38276875 DOI: 10.1021/acsbiomaterials.3c00659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
Embolization therapy involving biomaterials has improved the therapeutic strategy for most liver cancer treatments. Developing biomaterials as embolic agents has significantly improved patients' survival rates. Various embolic agents are present in liquid agents, foam, particulates, and particles. Some of the most applied embolic agents are microparticles, such as microspheres (3D micrometer-sized spherical particles). Microspheres with added functionalities are currently being developed for effective therapeutic embolization. Their excellent properties of high surface area and capacity for being loaded with radionuclides and alternate active or therapeutic agents provide an additional advantage to overcome limitations from traditional cancer treatments. Microspheres (non-radioactive and radioactive) have been widely used and explored for localized cancer treatment. Non-radioactive microspheres exhibit improved clinical performance as drug delivery vehicles in chemotherapy due to their controlled and sustained drug release to the target site. They offer better flow properties and are beneficial for the ease of delivery via injection procedures. In addition, radioactive microspheres have also been exploited for use as an embolic platform in internal radiotherapy as an alternative to cancer treatment. This short review summarizes the progressive development of non-radioactive and radioactive embolic microspheres, emphasizing material characteristics. The use of embolic microspheres for various modalities of therapeutic arterial embolization and their impact on therapeutic performance are also discussed.
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Affiliation(s)
- Nur Aisyah Nuzulia
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, Indonesia
- Department of Physics, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia
| | - Terry Mart
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, Indonesia
| | - Ifty Ahmed
- Advanced Materials Research Group, Faculty of Engineering, University of Nottingham, Nottingham, NG7 2RD, U.K
| | - Yessie Widya Sari
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, Indonesia
- Department of Physics, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia
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12
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Zhang M, Raghunath A, Zhao A, Eral HB. Biocompatible optical physically unclonable function hydrogel microparticles for on-dose authentication. Heliyon 2024; 10:e22895. [PMID: 38163172 PMCID: PMC10756959 DOI: 10.1016/j.heliyon.2023.e22895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 11/20/2023] [Accepted: 11/22/2023] [Indexed: 01/03/2024] Open
Abstract
On-dose authentication (ODA) enhances security by incorporating customized molecular or micro-tags into each pill, preventing counterfeit products in genuine packages. ODA's security relies on tag non-replication and non-reverse engineering. Combining ODA with graphical Physical Unclonable Functions (PUF) promises maximum security. PUF uses intrinsic micro or nanoscale randomness as a unique 'fingerprint'. However, current graphical PUFs have limitations like specific illumination requirements and the use of toxic materials, restricting their use in pharmaceuticals. In this study, we propose a novel approach called on-dose PUF. This method involves embedding microspheres randomly within micro biocompatible hydrogel particles. We showcase two distinct types of such on-dose PUFs. The first type utilizes randomly distributed superparamagnetic colloids (SPC) of identical diameters, while the second type utilizes vortexed sunflower oil drops of various diameters. The diameter and coordinates of the microspheres serve as input for generating cryptographic keys. A universal circle identification and binning program is used for extracting this information. One advantage of this approach is that it enables imaging using white light illumination and low-magnification microscopy, as color and signal intensity information are not crucial. This method enables patients to verify their medication by using their mobile phones from home. To assess the performance of the proposed on-dose PUF, we conducted canonical investigations on the single-diameter system. This system can only generate one layer of cryptographic keys, making it potentially more vulnerable than the multiple-diameter system. However, the single-diameter system successfully passed NIST Statistical tests and exhibited sufficient randomness, ideal bit uniformity, Hamming distance, and device uniqueness. Furthermore, we found that the encoding capacity of the single-diameter system was 9.2 × 10 18 , providing ample labeling potential.
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Affiliation(s)
- Mengmeng Zhang
- Process & Energy Department, Delft University of Technology, Leeghwaterstraat 39, 2628 CB Delft, the Netherlands
| | - Aparna Raghunath
- Process & Energy Department, Delft University of Technology, Leeghwaterstraat 39, 2628 CB Delft, the Netherlands
| | - An Zhao
- Process & Energy Department, Delft University of Technology, Leeghwaterstraat 39, 2628 CB Delft, the Netherlands
| | - Huseyin Burak Eral
- Process & Energy Department, Delft University of Technology, Leeghwaterstraat 39, 2628 CB Delft, the Netherlands
- Van't Hoff Labs, Physical Chemistry, University of Utrecht, the Netherlands
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13
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Ciarleglio G, Russo T, Toto E, Santonicola MG. Fabrication of Alginate/Ozoile Gel Microspheres by Electrospray Process. Gels 2024; 10:52. [PMID: 38247775 PMCID: PMC10815707 DOI: 10.3390/gels10010052] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 01/06/2024] [Accepted: 01/09/2024] [Indexed: 01/23/2024] Open
Abstract
Natural polymers, such as alginate and chitosan, are widely exploited for drug delivery applications due to their biocompatibility, low toxicity, and sustainable sourcing. In this study, pH-responsive gel microspheres were fabricated from an alginate/Ozoile emulsion. Ozoile (Stable Ozonides) is a biological inducer, derived from olive oil, which stimulates the endogenous defense system by promoting the repair of tissue damage and restoration of proper physiology through the regulation of gene transcription. Here, the versatile and cost-effective electrospray technique without the use of organic solvents was used to fabricate alginate/Ozoile microspheres with high throughput. The process parameters (voltage, flow rate, and needle gauge) were optimized to obtain microspheres with good sphericity factor and tailored diameter (250-700 μm). The microspheres were additionally optimized through a chitosan coating to enhance their stability and regulate the gel matrix's degradation process. Morphological analysis, FTIR spectroscopy, and degradation tests confirmed the structural integrity and pH-responsive behavior of the gel microspheres. This research offers a promising route for targeted drug delivery systems, particularly in applications related to the modulation of oxidative stress and management of inflammation.
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Affiliation(s)
- Gianluca Ciarleglio
- Department of Chemical Engineering Materials Environment, Sapienza University of Rome, Via del Castro Laurenziano 7, 00161 Rome, Italy; (G.C.); (T.R.); (E.T.)
- Erbagil s.r.l., Via Luigi Settembrini 13, 82037 Telese Terme, Italy
| | - Tiziana Russo
- Department of Chemical Engineering Materials Environment, Sapienza University of Rome, Via del Castro Laurenziano 7, 00161 Rome, Italy; (G.C.); (T.R.); (E.T.)
| | - Elisa Toto
- Department of Chemical Engineering Materials Environment, Sapienza University of Rome, Via del Castro Laurenziano 7, 00161 Rome, Italy; (G.C.); (T.R.); (E.T.)
| | - Maria Gabriella Santonicola
- Department of Chemical Engineering Materials Environment, Sapienza University of Rome, Via del Castro Laurenziano 7, 00161 Rome, Italy; (G.C.); (T.R.); (E.T.)
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14
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Othman AM, Sabry YM, Khalil D, Bourouina T. Single Infrared Spectrum Enables Simultaneous Identification of (Bio)Chemical Nature and Particle Size of Microorganisms and Synthetic Microplastic Beads. Anal Chem 2023; 95:17826-17833. [PMID: 37982148 DOI: 10.1021/acs.analchem.3c03919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2023]
Abstract
Populations of nearly identical chemical and biological microparticles include the synthetic microbeads used in cosmetic, biomedical, agri-food, and pharmaceutical industries as well as the class of living microorganisms such as yeast, pollen, and biological cells. Herein, we identify simultaneously the size and chemical nature of spherical microparticle populations with diameters larger than 1 μm. Our analysis relies on the extraction of both physical and chemical signatures from the same optical spectrum recorded using attenuated total reflection (ATR)-Fourier transform infrared (FTIR) spectroscopy. These signatures are the spectral resonances caused by the microparticles, which depend on their size and the absorption peaks revealing their chemical nature. We validate the method first on separated and mixed groups of spherical microplastic particles of two different diameters, where the method is used to calculate the diameter of the microspherical particles. Then, we apply the method to correctly identify and measure the diameter of Saccharomyces cerevisiae yeast cells. Theoretical simulations to help in understanding the effect of size distribution and dispersion support our results.
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Affiliation(s)
- Ahmed M Othman
- Université Gustave Eiffel, ESYCOM CNRS UMR 9007, Noisy-le-Grand ESIEE Paris, Noisy-le-Grand 93162, France
- Si-Ware Systems, 3 Khalid Ibn Al-Waleed St., Heliopolis, Cairo 11361, Egypt
| | - Yasser M Sabry
- Si-Ware Systems, 3 Khalid Ibn Al-Waleed St., Heliopolis, Cairo 11361, Egypt
- Faculty of Engineering, Ain-Shams University, 1 Elsarayat St. Abbassia, Cairo 11535, Egypt
| | - Diaa Khalil
- Si-Ware Systems, 3 Khalid Ibn Al-Waleed St., Heliopolis, Cairo 11361, Egypt
- Faculty of Engineering, Ain-Shams University, 1 Elsarayat St. Abbassia, Cairo 11535, Egypt
| | - Tarik Bourouina
- Université Gustave Eiffel, ESYCOM CNRS UMR 9007, Noisy-le-Grand ESIEE Paris, Noisy-le-Grand 93162, France
- Si-Ware Systems, 3 Khalid Ibn Al-Waleed St., Heliopolis, Cairo 11361, Egypt
- CINTRA, IRL 3288 CNRS-NTU-THALES, Nanyang Technological University, 637553 Singapore
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15
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Arriaga MA, Amieva JA, Quintanilla J, Jimenez A, Ledezma J, Lopez S, Martirosyan KS, Chew SA. The application of electrosprayed minocycline-loaded PLGA microparticles for the treatment of glioblastoma. Biotechnol Bioeng 2023; 120:3409-3422. [PMID: 37605630 PMCID: PMC10592149 DOI: 10.1002/bit.28527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 05/09/2023] [Accepted: 07/17/2023] [Indexed: 08/23/2023]
Abstract
The survival of patients with glioblastoma multiforme (GBM), the most common and invasive form of malignant brain tumors, remains poor despite advances in current treatment methods including surgery, radiotherapy, and chemotherapy. Minocycline is a semi-synthetic tetracycline derivative that has been widely used as an antibiotic and more recently, it has been utilized as an antiangiogenic factor to inhibit tumorigenesis. The objective of this study was to investigate the utilization of electrospraying process to fabricate minocycline-loaded poly(lactic-co-glycolic acid) (PLGA) microparticles with high drug loading and loading efficiency and to evaluate their ability to induce cell toxicity in human glioblastoma (i.e., U87-MG) cells. The results from this study demonstrated that solvent mixture of dicholoromethane (DCM) and methanol is the optimal solvent combination for minocycline and larger amount of methanol (i.e., 70:30) resulted in a higher drug loading. All three solvent ratios of DCM:methanol tested produced microparticles that were both spherical and smooth, all in the micron size range. The electrosprayed microparticles were able to elicit a cytotoxic response in U87-MG glioblastoma cells at a lower concentration of drug compared to the free drug. This work provides proof of concept to the hypothesis that electrosprayed minocycline-loaded PLGA microparticles can be a promising agent for the treatment of GBM and could have potential application for cancer therapies.
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Affiliation(s)
- Marco A. Arriaga
- Department of Health and Biomedical Sciences, University of Texas Rio Grande Valley, One West University Blvd., Brownsville, TX 78520
| | - Juan A. Amieva
- Department of Health and Biomedical Sciences, University of Texas Rio Grande Valley, One West University Blvd., Brownsville, TX 78520
| | - Jaqueline Quintanilla
- Department of Health and Biomedical Sciences, University of Texas Rio Grande Valley, One West University Blvd., Brownsville, TX 78520
| | - Angela Jimenez
- Department of Health and Biomedical Sciences, University of Texas Rio Grande Valley, One West University Blvd., Brownsville, TX 78520
| | - Julio Ledezma
- Department of Health and Biomedical Sciences, University of Texas Rio Grande Valley, One West University Blvd., Brownsville, TX 78520
| | - Silverio Lopez
- Department of Physics and Astronomy, University of Texas Rio Grande Valley, One West University Blvd., Brownsville, TX 78520
| | - Karen S. Martirosyan
- Department of Physics and Astronomy, University of Texas Rio Grande Valley, One West University Blvd., Brownsville, TX 78520
| | - Sue Anne Chew
- Department of Health and Biomedical Sciences, University of Texas Rio Grande Valley, One West University Blvd., Brownsville, TX 78520
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16
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Kaspute G, Arunagiri BD, Alexander R, Ramanavicius A, Samukaite-Bubniene U. Development of Essential Oil Delivery Systems by 'Click Chemistry' Methods: Possible Ways to Manage Duchenne Muscular Dystrophy. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6537. [PMID: 37834674 PMCID: PMC10573547 DOI: 10.3390/ma16196537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/25/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023]
Abstract
Recently, rare diseases have received attention due to the need for improvement in diagnosed patients' and their families' lives. Duchenne muscular dystrophy (DMD) is a rare, severe, progressive, muscle-wasting disease. Today, the therapeutic standard for treating DMD is corticosteroids, which cause serious adverse side effects. Nutraceuticals, e.g., herbal extracts or essential oils (EOs), are possible active substances to develop new drug delivery systems to improve DMD patients' lives. New drug delivery systems lead to new drug effects, improved safety and accuracy, and new therapies for rare diseases. Herbal extracts and EOs combined with click chemistry can lead to the development of safer treatments for DMD. In this review, we focus on the need for novel drug delivery systems using EOs as the therapy for DMD and the potential use of click chemistry for drug delivery systems. New EO complex drug delivery systems may offer a new approach for improving muscle conditions and mental health issues associated with DMD. However, further research should identify the potential of these systems in the context of DMD. In this review, we discuss possibilities for applying EOs to DMD before implementing expensive research in a theoretical way.
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Affiliation(s)
- Greta Kaspute
- Department of Nanotechnology, State Research Institute Center for Physical Sciences and Technology (FTMC), Sauletekis av. 3, LT-10257 Vilnius, Lithuania;
- Department of Physical Chemistry, Institute of Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko Str. 24, LT-03225 Vilnius, Lithuania; (B.D.A.); (R.A.)
| | - Bharani Dharan Arunagiri
- Department of Physical Chemistry, Institute of Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko Str. 24, LT-03225 Vilnius, Lithuania; (B.D.A.); (R.A.)
| | - Rakshana Alexander
- Department of Physical Chemistry, Institute of Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko Str. 24, LT-03225 Vilnius, Lithuania; (B.D.A.); (R.A.)
| | - Arunas Ramanavicius
- Department of Nanotechnology, State Research Institute Center for Physical Sciences and Technology (FTMC), Sauletekis av. 3, LT-10257 Vilnius, Lithuania;
- Department of Physical Chemistry, Institute of Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko Str. 24, LT-03225 Vilnius, Lithuania; (B.D.A.); (R.A.)
| | - Urte Samukaite-Bubniene
- Department of Nanotechnology, State Research Institute Center for Physical Sciences and Technology (FTMC), Sauletekis av. 3, LT-10257 Vilnius, Lithuania;
- Department of Physical Chemistry, Institute of Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko Str. 24, LT-03225 Vilnius, Lithuania; (B.D.A.); (R.A.)
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17
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Sulej J, Piątek-Gołda W, Grąz M, Szałapata K, Waśko P, Janik-Zabrotowicz E, Osińska-Jaroszuk M. Immobilisation of Cellobiose Dehydrogenase and Laccase on Chitosan Particles as a Multi-Enzymatic System for the Synthesis of Lactobionic Acid. J Funct Biomater 2023; 14:383. [PMID: 37504878 PMCID: PMC10381469 DOI: 10.3390/jfb14070383] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/04/2023] [Accepted: 07/19/2023] [Indexed: 07/29/2023] Open
Abstract
Lactobionic acid (LBA) is a bioactive compound that has become increasingly popular in medicine in recent years due to its unique properties. This chemical can be formed via the enzymatic oxidation of lactose using fungal oxidoreductive enzymes. This study aimed to intensify the synthesis of LBA using immobilised enzymes (cellobiose dehydrogenase from Phanerochaete chrysosporium (PchCDH) and laccase from Cerrena unicolor (CuLAC)) on chitosan microspheres. We used three different crosslinking agents: genipin, glutaraldehyde, and polyethyleneimine to activate the chitosan. The FTIR and CellDrop techniques were used to characterise the activated microspheres. Quantitative (HPLC) and qualitative (TLC) methods were used to determine the obtained LBA. The results show that the type of activator used influences the efficiency of the binding of the enzyme to the matrix. Furthermore, the amount of LBA formed depends on the type of system used. The use of a system in which one of the enzymes is immobilised on a PEI-activated carrier (PchCDH) and the other is free (CuLAC) proved to be the most optimal, as it yielded almost 100% conversion of lactose to lactobionic acid. Summarising the data obtained the following: lactobionic acid immobilised on chitosan microspheres has great potential for medical applications.
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Affiliation(s)
- Justyna Sulej
- Department of Biochemistry and Biotechnology, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
| | - Wiktoria Piątek-Gołda
- Department of Biochemistry and Biotechnology, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
| | - Marcin Grąz
- Department of Biochemistry and Biotechnology, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
| | - Katarzyna Szałapata
- Department of Biochemistry and Biotechnology, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
| | - Piotr Waśko
- Department of Plant Physiology and Biophysics, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
- Core Facility of Biospectroscopy, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
| | - Ewa Janik-Zabrotowicz
- Core Facility of Biospectroscopy, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
- Department of Cell Biology, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
| | - Monika Osińska-Jaroszuk
- Department of Biochemistry and Biotechnology, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
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18
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Azhari Z, Smith P, McMahon S, Wang W, Cameron RE. Modulating Drug Release from Short Poly(ethylene glycol) Block Initiated Poly(L-lactide) Di-block Copolymers. Pharm Res 2023; 40:1697-1707. [PMID: 35474159 PMCID: PMC10421795 DOI: 10.1007/s11095-022-03228-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 03/08/2022] [Indexed: 11/30/2022]
Abstract
This paper investigates drug release from a novel series of mPEG-functionalised PLLA polymers whose individual components (PEG and PLLA) have regulatory FDA approval. Two processing methods were explored to understand their effect on the morphology and drug release profiles of the polymers, with and without mPEG functionalisation. In the first method the polymer and Propranolol.HCl drug powders were mixed together before injection moulding. In the second method, supercritical CO2 was used to mix the polymer and drug before injection moulding. When non-functionalised PLLA was processed through injection moulding alone, there were no signs of polymer-drug interaction, and the drug was confined to crystals on the surface. This resulted in up to 85 wt% burst release of propranolol.HCl after one day of incubation. By contrast, injection moulding of mPEG-functionalised polymers resulted in the partial dissolution of drug in the polymer matrix and a smaller burst (50 wt% drug) followed by sustained release. This initial burst release was completely eliminated from the profile of mPEG-functionalised polymers processed via supercritical CO2. The addition of mPEG facilitated the distribution of the drug into the bulk matrix of the polymer. Paired with supercritical CO2 processing, the drug release profile showed a slow, sustained release throughout the 4 months of the study.
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Affiliation(s)
- Zein Azhari
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK
| | - Patricia Smith
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK
| | - Sean McMahon
- Ashland Specialties Ireland Ltd., National Science Park, Building V, Dublin Road, Petitswood, Mullingar, Co. Westmeath, Ireland
| | - Wenxin Wang
- The Charles Institute of Dermatology, School of Medicine and Medical Science, University College Dublin, Dublin, Ireland
| | - Ruth E Cameron
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK.
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19
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Ho TC, Lim JS, Kim SJ, Kim SY, Chun BS. In Vitro Biodegradation, Drug Absorption, and Physical Properties of Gelatin-Fucoidan Microspheres Made of Subcritical-Water-Modified Fish Gelatin. Mar Drugs 2023; 21:md21050287. [PMID: 37233481 DOI: 10.3390/md21050287] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 04/28/2023] [Accepted: 05/01/2023] [Indexed: 05/27/2023] Open
Abstract
This study aimed to prepare gelatin-fucoidan microspheres with enhanced doxorubicin binding efficiency and controllable biodegradation using fish gelatin combined with low molecular weight (LMW) gelatin and fucoidan at fixed ratios. The MW of gelatin was modified by subcritical water (SW), which is known as a safe solvent, at 120 °C, 140 °C, and 160 °C. In addition, gelatin-fucoidan microspheres were prepared using a solvent exchange technique. Our findings revealed that particle size decreased, the surface was rougher, the swelling ratio increased, and particle shape was irregular in microspheres composed of SW-modified gelatin. Doxorubicin binding efficiency was improved by fucoidan and SW-modified gelatin at 120 °C but not at 140 °C and 160 °C. Interestingly, an increase in in vitro enzymatic degradation was observed in the microspheres consisting of SW-modified fish gelatin, although the cross-linking degree between them was not significantly different. This is because LMW gelatin could form more cross-linked bonds, which might be weaker than the intramolecular bonds of gelatin molecules. Gelatin-fucoidan microspheres consisting of SW-modified fish gelatin with controlled biodegradation rates could be a candidate for a short-term transient embolization agent. In addition, SW would be a promising method to modify the MW of gelatin for medical applications.
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Affiliation(s)
- Truc Cong Ho
- PL MICROMED Co., Ltd., 1F, 15-5, Yangju 3-gil, Yangsan-si 50620, Republic of Korea
| | - Ju-Sop Lim
- PL MICROMED Co., Ltd., 1F, 15-5, Yangju 3-gil, Yangsan-si 50620, Republic of Korea
| | - Shin-Jun Kim
- PL MICROMED Co., Ltd., 1F, 15-5, Yangju 3-gil, Yangsan-si 50620, Republic of Korea
| | - Sung-Yeoul Kim
- PL MICROMED Co., Ltd., 1F, 15-5, Yangju 3-gil, Yangsan-si 50620, Republic of Korea
| | - Byung-Soo Chun
- Department of Food Science and Technology, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
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20
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Bohmer M, Xue Y, Jankovic K, Dong Y. Advances in engineering and delivery strategies for cytokine immunotherapy. Expert Opin Drug Deliv 2023; 20:579-595. [PMID: 37104673 PMCID: PMC10330431 DOI: 10.1080/17425247.2023.2208344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 04/25/2023] [Indexed: 04/29/2023]
Abstract
INTRODUCTION Cytokine immunotherapy is a growing field for the treatment of cancer, infectious disease, autoimmunity, and other ailments. Therapeutic cytokines are a class of secreted, small proteins that play a pivotal role in regulating the innate and adaptive immune system by provoking or mitigating immune responses. In the clinic, cytokines are frequently combined with other treatments, such as small molecules and monoclonal antibodies. However, the clinical translation of cytokine therapies is hindered by their short half-life, pleiotropic nature, and off-target effects, which cause diminished efficacy and severe systemic toxicity. Such toxicity limits dosage, thus resulting in suboptimal doses. Accordingly, numerous efforts have been devoted to exploring strategies to promote cytokine therapies by improving their tissue specificity and pharmacokinetics. AREAS COVERED Preclinical and clinical research into bioengineering and delivery strategies for cytokines, consisting of bioconjugation, fusion proteins, nanoparticles, and scaffold-based systems. EXPERT OPINION These approaches pave the way for the development of next-generation cytokine treatments with greater clinical benefit and reduced toxicity, circumventing such issues currently associated with cytokine therapy.
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Affiliation(s)
- Margaret Bohmer
- Division of Pharmaceutics & Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH, 43210, USA
| | - Yonger Xue
- Division of Pharmaceutics & Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH, 43210, USA
| | - Katarina Jankovic
- Division of Pharmaceutics & Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH, 43210, USA
| | - Yizhou Dong
- Division of Pharmaceutics & Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH, 43210, USA
- Pelotonia Institute for Immune-Oncology, The Ohio State University, Columbus, OH, 43210, USA
- Center for Cancer Engineering, The Ohio State University, Columbus, OH, 43210, USA
- Center for Cancer Metabolism, Department of Radiation Oncology, The Ohio State University, Columbus, OH, 43210, USA
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, 43210, USA
- The Center for Clinical and Translational Science, The Ohio State University, Columbus, OH, 43210, USA
- The Comprehensive Cancer Center, The Ohio State University, Columbus, OH, 43210, USA
- Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University, Columbus, OH, 43210, USA
- Icahn Genomics Institute, Precision Immunology Institute, Department of Oncological Sciences, Tisch Cancer Institute, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
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21
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Shahjin F, Patel M, Hasan M, Cohen JD, Islam F, Ashaduzzaman M, Nayan MU, Subramaniam M, Zhou Y, Andreu I, Gendelman HE, Kevadiya BD. Development of a porous layer-by-layer microsphere with branched aliphatic hydrocarbon porogens. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2023; 48:102644. [PMID: 36549555 PMCID: PMC10460474 DOI: 10.1016/j.nano.2022.102644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 11/22/2022] [Accepted: 12/10/2022] [Indexed: 12/24/2022]
Abstract
Porous polymer microspheres are employed in biotherapeutics, tissue engineering, and regenerative medicine. Porosity dictates cargo carriage and release that are aligned with the polymer physicochemical properties. These include material tuning, biodegradation, and cargo encapsulation. How uniformity of pore size affects therapeutic delivery remains an area of active investigation. Herein, we characterize six branched aliphatic hydrocarbon-based porogen(s) produced to create pores in single and multilayered microspheres. The porogens are composed of biocompatible polycaprolactone, poly(lactic-co-glycolic acid), and polylactic acid polymers within porous multilayered microspheres. These serve as controlled effective drug and vaccine delivery platforms.
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Affiliation(s)
- Farah Shahjin
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Milankumar Patel
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Mahmudul Hasan
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, USA
| | - Jacob D Cohen
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Farhana Islam
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Md Ashaduzzaman
- Computer Science, University of Nebraska-Omaha, Omaha, NE, USA
| | - Mohammad Ullah Nayan
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | | | - You Zhou
- Center for Biotechnology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Irene Andreu
- Department of Chemical Engineering, University of Rhode Island, Kingston, RI, USA
| | - Howard E Gendelman
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA.
| | - Bhavesh D Kevadiya
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
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22
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Muhaimin M, Chaerunisaa AY, Bodmeier R. Polymer type effect on PLGA-based microparticles preparation by solvent evaporation method with single emulsion system using focussed beam reflectance measurement. J Microencapsul 2022; 39:512-521. [PMID: 36089916 DOI: 10.1080/02652048.2022.2116120] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
AIM This study aimed to investigate the effect of polymer type on solidification rate of PLGA polymeric microparticles and particle size/distribution of the emulsion droplets/hardened PLGA polymeric microparticles during solvent evaporation process using FBRM (Focussed Beam Reflectance Measurement). METHODS PLGA polymeric microparticles were prepared by an O/W solvent evaporation method using various PLGA polymers, including PLGA Resomer® RG503H, RG502H and RG752H. The particle size mean, chord length distribution (CLD), and chord count of the emulsion droplets/hardened microparticles were monitored by FBRM. The morphology of polymeric microparticles were characterised by optical microscopy and scanning electron microscopy (SEM). RESULTS The transformation of the emulsion droplets into solid microparticles occurred within the first 30 (± 1.04), 34 (± 1.15) and 37 (± 0.82) min and square weighted mean chord lengths are 64.08 (± 3.18), 52.36 (± 5.27) and 42.18 (± 4.61) µm when PLGA Resomer® RG503H, RG502H and RG752H were used respectively. Larger square weighted mean chord length of PLGA polymeric microparticles gave lower chord counts. PLGA RG752H microparticles gave smallest square weighted mean chord length and the chord counts was the highest. The CLDs measured by FBRM showed that a larger particle size mean gave longer CLD and a lower peak of particle number. SEM data revealed that the morphology of microparticles was influenced by type and physical properties of polymer. CONCLUSIONS FBRM can be employed for online monitoring of the shift in the microparticle CLD and detect transformation of the emulsion droplets into solid microparticles during the solvent evaporation process. The microparticle CLD and transformation process were strongly influenced by polymer type.
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Affiliation(s)
| | | | - Roland Bodmeier
- College of Pharmacy, Freie Universität Berlin, Berlin, Germany
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23
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Itoh T, Okuno M, Moriya Y, Shimomoto H, Ihara E. Poly(acrylic acid) block copolymers as stabilizers for dispersion polymerization. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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24
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Ganguly R, Choi C, Lee C. Interfacial deformation of confined photocurable fluid for fabrication of shape‐imprinted microspheres. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20220068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Reya Ganguly
- Department of Chemical Engineering and Applied Chemistry Chungnam National University Daejeon Republic of Korea
| | - Chang‐Hyung Choi
- Division of Cosmetic Science and Technology Daegu Haany University Gyeongsan‐si Republic of Korea
| | - Chang‐Soo Lee
- Department of Chemical Engineering and Applied Chemistry Chungnam National University Daejeon Republic of Korea
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25
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26
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Ibadat NF, Ongkudon CM, Saallah S, Misson M. Synthesis and Characterization of Polymeric Microspheres Template for a Homogeneous and Porous Monolith. Polymers (Basel) 2021; 13:3639. [PMID: 34771196 PMCID: PMC8588115 DOI: 10.3390/polym13213639] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/21/2021] [Accepted: 10/03/2021] [Indexed: 11/17/2022] Open
Abstract
Monolith is an emerging technology applicable for separation, filtration, and chromatography due to its interconnected pore structure. However, the current templates used to form monolith pores are associated with poor heat dissipation, uneven pore size distribution, and relatively low mechanical strength during monolith scale-up. Templates made from polymeric microsphere particles were synthesized via a solvent evaporation technique using different types of polymer (polystyrene, polycaprolactone, polypropylene, polyethylene, and poly (vinyl-alcohol) at varied polymer (10-40 wt%) and surfactant (5-10%) concentrations. The resulting microsphere particles were tested as a monolith template for the formation of homogenous pores. Among the tested polymers, polystyrene at 10 wt% concentration demonstrated good particle morphology determined to around 1.94-3.45 µm. The addition of surfactant at a concentration of 7-10 wt% during microsphere synthesis resulted in the formation of well-shaped and non-aggregating microsphere particles. In addition, the template has contributed to the production of porous monoliths with enhanced thermal stability. The thermogravimetric analysis (TGA) indicated monolith degradation between 230 °C and 450 °C, implying the material excellent mechanical strength. The findings of the study provide insightful knowledge on the feasibility of polymeric microsphere particles as a pore-directing template to fabricate monoliths with desired pore structures.
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Affiliation(s)
| | | | | | - Mailin Misson
- Bioprocess Engineering Research Groups, Biotechnology Research Institute, Universiti Malaysia Sabah, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia; (N.F.I.); (C.M.O.); (S.S.)
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27
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Mofakhami S, Salahinejad E. Biphasic calcium phosphate microspheres in biomedical applications. J Control Release 2021; 338:527-536. [PMID: 34499980 DOI: 10.1016/j.jconrel.2021.09.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 09/02/2021] [Accepted: 09/03/2021] [Indexed: 01/02/2023]
Abstract
Biphasic calcium phosphate (BCP) microspheres benefit from, on the one hand, a desired shape offering improved flowability and injectability to fill complex-shaped bone defects and on the other hand, a promising combination of bioresorbability, bioactivity, biocompatibility, osteogenesis and angiogenesis. The biofunctional characteristics of BCP microspheres are mainly controlled by varying the constitute phase ratio, porosity and surface roughness, which are all determined by the used production route and its parameters. In this paper, the manufacturing methods, properties and applications of BCP microspheres are reviewed and concluded in terms of future work directions to develop their uses in biomedicine, particularly in bone tissue regenerative and delivery applications.
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Affiliation(s)
- Sohrab Mofakhami
- Faculty of Materials Science and Engineering, K. N. Toosi University of Technology, Tehran, Iran
| | - Erfan Salahinejad
- Faculty of Materials Science and Engineering, K. N. Toosi University of Technology, Tehran, Iran.
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Muhaimin M, Chaerunisaa AY, Bodmeier R. Real-time particle size analysis using focused beam reflectance measurement as a process analytical technology tool for continuous microencapsulation process. Sci Rep 2021; 11:19390. [PMID: 34588571 PMCID: PMC8481503 DOI: 10.1038/s41598-021-98984-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 09/17/2021] [Indexed: 11/23/2022] Open
Abstract
The online real-time particle size analysis of the microencapsules manufacturing process using the continuous solvent evaporation method was performed using focused beam reflectance measurement (FBRM). In this paper, we use FBRM measurements to investigate the effects of polymer type and compare the size distributions to those obtained using other sizing methods such as optical microscope and laser diffraction. FBRM was also utilized to measure the length-weighted chord length distribution (CLD) and particle size distribution (PSD) online during particle solidification, which could not be done with laser diffraction or nested sieve analysis. The chord lengths and CLD data were taken at specific times using an online FBRM probe mounted below the microparticle. The timing of the FBRM determinations was coordinated with the selection of microparticle samples for particle size analysis by optical microscope and laser diffraction calculation as a reference. For all three produced batches tested, FBRM, laser diffraction, and sieve analysis yielded similar results. Hardening time for the transformation of emulsion droplets into solid microparticles occurred within the first 10.5, 19, 25, 30, and 55 min, according to FBRM results. The FBRM CLDs revealed that a larger particle size mean resulted in a longer CLD and a lower peak of particle number. The FBRM data revealed that the polymer type had a significant impact on microparticle CLD and the transformation process.
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Affiliation(s)
- Muhaimin Muhaimin
- Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Jatinangor Km 21, Sumedang, Jawa Barat, 45363, Indonesia.
| | - Anis Yohana Chaerunisaa
- Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Jatinangor Km 21, Sumedang, Jawa Barat, 45363, Indonesia
| | - Roland Bodmeier
- College of Pharmacy, Freie Universität Berlin, Kelchstr. 31, Berlin, 12169, Germany
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Shetty K, Sherje AP. Nano intervention in topical delivery of corticosteroid for psoriasis and atopic dermatitis-a systematic review. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2021; 32:88. [PMID: 34331599 PMCID: PMC8325647 DOI: 10.1007/s10856-021-06558-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 07/07/2021] [Indexed: 05/03/2023]
Abstract
Atopic dermatitis (AD) and psoriasis are highly prevalent, complex, chronic inflammatory skin diseases that immensly affect the patient's quality of life. While there is no definitive cure for these conditions, suppressive medications aim at managing the symptoms of these diseases. The application of emollients accompanied by symptomatic anti-inflammatory therapy consisting of topical corticosteroids (TCS) is extensively employed for controlling the symptoms among general practitioners making this therapeutic class an indispensable pillar of dermatotherapeutics. The first TCS, hydrocortisone (HC) introduced in the early 1950s led to the development of different steroidal moieties of varying potencies by inducing chemical modifications to the basic steroid structure. The wide spectrum of the available range of formulations and potency provides flexibility to treat all patient groups, different phases of the diseases, and different anatomical sites. Conventional TCS therapy suffers from drawbacks such as low drug permeation and retention rate. Thus, novel nanoformulations have been developed to overcome these problems. This review provides an insight into the current state of nanocarrier-mediated topical delivery of corticosteroids monotherapy and combination therapy with special emphasis on targeting psoriasis and AD.
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Affiliation(s)
- Kshitya Shetty
- SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai, 400 056, India
| | - Atul P Sherje
- SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai, 400 056, India.
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30
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Wan B, Andhariya JV, Bao Q, Wang Y, Zou Y, Burgess DJ. Effect of polymer source on in vitro drug release from PLGA microspheres. Int J Pharm 2021; 607:120907. [PMID: 34332059 DOI: 10.1016/j.ijpharm.2021.120907] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/13/2021] [Accepted: 07/18/2021] [Indexed: 12/28/2022]
Abstract
Determination of the qualitative (Q1) sameness of poly (lactic-co-glycolic acid) (PLGA) polymers can be very challenging due to PLGA being a random copolymer with inherent heterogeneity. Performance variation of PLGA microsphere drug product as a result of altered PLGA characteristics has been recognized as a critical limiting factor in product development. It has been reported that PLGA characteristics and degradation profiles are sensitive to minor differences in the manufacturing and control processes. Accordingly, the objectives of the present research were: 1) to determine minor differences in the physicochemical properties (such as inherent viscosity/molecular weight (Mw), blockiness, and glass transition temperature (Tg)) and the hydrolytic degradation profiles of PLGA polymers from different sources; and 2) to investigate the impact of any differences determined in (1) on the physicochemical properties (Q3) and in vitro release of leuprolide acetate microspheres. PLGA polymers were purchased from three different sources with similar inherent viscosity/Mw, monomer (Lactide/Glycolide) ratio, and end group as per the manufacturers' certificate of analysis (COA). These PLGA polymers were evaluated using the same in-house methods and showed differences in their properties such as Mw and blockiness. Three compositionally equivalent leuprolide acetate microspheres were prepared via a solvent evaporation method using the three PLGA polymers from different sources. The prepared microspheres showed differences in their physicochemical properties (such as particle size, porosity and average pore diameter) as well as in their in vitro drug release characteristics (burst effect and release rate). These results indicate that polymer source related variations have the potential to significantly impact the Q3 sameness and therapeutic performance of long-acting PLGA microspheres. The fundamental understanding gained on polymer properties will make a critical contribution to the development of quality control strategies as well as to future regulatory guidance on the evaluation of such complex drug products.
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Affiliation(s)
- Bo Wan
- University of Connecticut, Department of Pharmaceutical Sciences, Storrs CT 06269, United States
| | - Janki V Andhariya
- University of Connecticut, Department of Pharmaceutical Sciences, Storrs CT 06269, United States
| | - Quanying Bao
- University of Connecticut, Department of Pharmaceutical Sciences, Storrs CT 06269, United States
| | - Yan Wang
- FDA/CDER, Office of Generic Drugs, Office of Research and Standards, Silver Spring MD 20993, United States
| | - Yuan Zou
- FDA/CDER, Office of Generic Drugs, Office of Research and Standards, Silver Spring MD 20993, United States
| | - Diane J Burgess
- University of Connecticut, Department of Pharmaceutical Sciences, Storrs CT 06269, United States.
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Pharmaceutical Formulations with P-Glycoprotein Inhibitory Effect as Promising Approaches for Enhancing Oral Drug Absorption and Bioavailability. Pharmaceutics 2021; 13:pharmaceutics13071103. [PMID: 34371794 PMCID: PMC8309061 DOI: 10.3390/pharmaceutics13071103] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/09/2021] [Accepted: 07/19/2021] [Indexed: 02/08/2023] Open
Abstract
P-glycoprotein (P-gp) is crucial in the active transport of various substrates with diverse structures out of cells, resulting in poor intestinal permeation and limited bioavailability following oral administration. P-gp inhibitors, including small molecule drugs, natural constituents, and pharmaceutically inert excipients, have been exploited to overcome P-gp efflux and enhance the oral absorption and bioavailability of many P-gp substrates. The co-administration of small molecule P-gp inhibitors with P-gp substrates can result in drug–drug interactions and increased side effects due to the pharmacological activity of these molecules. On the other hand, pharmaceutically inert excipients, including polymers, surfactants, and lipid-based excipients, are safe, pharmaceutically acceptable, and are not absorbed from the gut. Notably, they can be incorporated in pharmaceutical formulations to enhance drug solubility, absorption, and bioavailability due to the formulation itself and the P-gp inhibitory effects of the excipients. Different formulations with inherent P-gp inhibitory activity have been developed. These include micelles, emulsions, liposomes, solid lipid nanoparticles, polymeric nanoparticles, microspheres, dendrimers, and solid dispersions. They can bypass P-gp by different mechanisms related to their properties. In this review, we briefly introduce P-gp and P-gp inhibitors, and we extensively summarize the current development of oral drug delivery systems that can bypass and inhibit P-gp to improve the oral absorption and bioavailability of P-gp substrates. Since many drugs are limited by P-gp-mediated efflux, this review is helpful for designing suitable formulations of P-gp substrates to enhance their oral absorption and bioavailability.
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32
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Kondolot Solak E, Kaya S, Asman G. Preparation, characterization, and antibacterial properties of biocompatible material for wound healing. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2021. [DOI: 10.1080/10601325.2021.1929315] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Ebru Kondolot Solak
- Department of Chemistry and Chemical Processing Technologies, Gazi University, Technical Sciences Vocational School, Ankara, Turkey
- Department of Advanced Technologies, Gazi University, Graduate School of Natural and Applied Sciences, Ankara, Turkey
| | - Seçil Kaya
- Department of Advanced Technologies, Gazi University, Graduate School of Natural and Applied Sciences, Ankara, Turkey
| | - Gülsen Asman
- Faculty of Science, Department of Chemistry, Gazi University, Ankara, Turkey
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Borrelli MA, Turnquist HR, Little SR. Biologics and their delivery systems: Trends in myocardial infarction. Adv Drug Deliv Rev 2021; 173:181-215. [PMID: 33775706 PMCID: PMC8178247 DOI: 10.1016/j.addr.2021.03.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 03/14/2021] [Accepted: 03/20/2021] [Indexed: 02/07/2023]
Abstract
Cardiovascular disease is the leading cause of death around the world, in which myocardial infarction (MI) is a precipitating event. However, current therapies do not adequately address the multiple dysregulated systems following MI. Consequently, recent studies have developed novel biologic delivery systems to more effectively address these maladies. This review utilizes a scientometric summary of the recent literature to identify trends among biologic delivery systems designed to treat MI. Emphasis is placed on sustained or targeted release of biologics (e.g. growth factors, nucleic acids, stem cells, chemokines) from common delivery systems (e.g. microparticles, nanocarriers, injectable hydrogels, implantable patches). We also evaluate biologic delivery system trends in the entire regenerative medicine field to identify emerging approaches that may translate to the treatment of MI. Future developments include immune system targeting through soluble factor or chemokine delivery, and the development of advanced delivery systems that facilitate the synergistic delivery of biologics.
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Affiliation(s)
- Matthew A Borrelli
- Department of Chemical Engineering, University of Pittsburgh, 940 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA 15213, USA.
| | - Heth R Turnquist
- Starzl Transplantation Institute, 200 Darragh St, Pittsburgh, PA 15213, USA; Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; Department of Immunology, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA 15213, USA.
| | - Steven R Little
- Department of Chemical Engineering, University of Pittsburgh, 940 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA 15213, USA; Department of Bioengineering, University of Pittsburgh, 302 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA 15213, USA; Department of Clinical and Translational Science, University of Pittsburgh, Forbes Tower, Suite 7057, Pittsburgh, PA 15213, USA; McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, PA 15219, USA; Department of Immunology, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA 15213, USA; Department of Pharmaceutical Science, University of Pittsburgh, 3501 Terrace Street, Pittsburgh, PA 15213, USA; Department of Ophthalmology, University of Pittsburgh, 203 Lothrop Street, Pittsburgh, PA 15213, USA.
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Abd El-Mageed AIA, Dyab AKF, Mohamed LA, Taha F, Essawy HA. Suspension polymerization for fabrication of magnetic polystyrene microspheres stabilized with Hitenol BC-20. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03755-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Kang DW, Ryu CH, Kim JH, Choi GW, Kim S, Chon CH, Kim JH, Cho HY. Pharmacokinetic-pharmacodynamic modeling approach for dose prediction of the optimal long-acting injectable formulation of finasteride. Int J Pharm 2021; 601:120527. [PMID: 33781881 DOI: 10.1016/j.ijpharm.2021.120527] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 03/09/2021] [Accepted: 03/21/2021] [Indexed: 10/21/2022]
Abstract
A controlled drug release formulation based on the subcutaneous injection of poly (lactic-co-glycolic acid) (PLGA) microspheres loaded with finasteride was prepared and evaluated for monthly delivery. After selection of biodegradable polymer and polymer-to-finasteride ratio, the formulation was characterized. Scanning electron microscopy (SEM) and laser-light particle size analysis were used to examine the morphology, surface structure, and particle size. High‑performance liquid chromatography (HPLC) was used to determine the drug loading, while liquid chromatography with tandem mass spectrometry (LC-MS/MS) was employed to analyze plasma finasteride concentrations. Results showed that the PLGA microspheres were spherical and of an appropriate size. The formulation stably releases the drug from the microspheres and the release sustained for a month without burst release, which was the desired duration. In vivo pharmacokinetic-pharmacodynamic (PK-PD) studies were conducted in beagle dogs through the administration of PROPECIA® (as a reference drug) per oral and subcutaneous injection of the long-acting injectable microsphere formulation (LAIF) loaded with five different doses of finasteride. From the acquired plasma data, PK-PD models for both PROPECIA®-administered group and LAIFs-injected groups were developed and validated. PK-PD profiles of both groups were predicted for up to one month. The predicted PK-PD profile of all LAIFs showed the achievability of monthly delivery and pharmacological effects without burst release, compared to the simulated PK-PD profile of PROPECIA®. According to the predicted PK-PD profiles, the formulation loaded with 16.8 mg of finasteride was determined to be the optimal dose. The data obtained from the PK-PD model could be used as the basis for the estimation of a first-in-human dose of the formulation.
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Affiliation(s)
- Dong Wook Kang
- College of Pharmacy, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do 13488, Republic of Korea
| | - Choong Ho Ryu
- Inventage Lab, Inc., 12, Yanghyeon-ro 405beon-gil, Jungwon-gu, Seongnam-si, Gyeonggi-do 13438, Republic of Korea
| | - Ju Hee Kim
- College of Pharmacy, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do 13488, Republic of Korea
| | - Go-Wun Choi
- College of Pharmacy, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do 13488, Republic of Korea
| | - Seyeon Kim
- Inventage Lab, Inc., 12, Yanghyeon-ro 405beon-gil, Jungwon-gu, Seongnam-si, Gyeonggi-do 13438, Republic of Korea
| | - Chan Hee Chon
- Inventage Lab, Inc., 12, Yanghyeon-ro 405beon-gil, Jungwon-gu, Seongnam-si, Gyeonggi-do 13438, Republic of Korea
| | - Ju Hee Kim
- Inventage Lab, Inc., 12, Yanghyeon-ro 405beon-gil, Jungwon-gu, Seongnam-si, Gyeonggi-do 13438, Republic of Korea
| | - Hea-Young Cho
- College of Pharmacy, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do 13488, Republic of Korea.
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Deng X, Huang B, Hu R, Chen L, Tang Y, Lu C, Chen Z, Zhang W, Zhang X. 3D printing of robust and biocompatible poly(ethylene glycol)diacrylate/nano-hydroxyapatite composites via continuous liquid interface production. J Mater Chem B 2021; 9:1315-1324. [PMID: 33443259 DOI: 10.1039/d0tb02182b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three-dimensional (3D) printing technology with satisfactory speed and accuracy has been a powerful force in biomaterial processing. Early studies on 3D printing of biomaterials mainly focused on their biocompatibility and cellular viability while rarely attempted to produce robust specimens. Nonetheless, the biomedical applications of polymers can be severely limited by their inherently weak mechanical properties particularly in bone tissue engineering. In this study, continuous liquid interface production (CLIP) is applied to construct 3D objects of nano-hydroxyapatite (n-HA) filled polymeric biomaterials with complex architectures. Notably, the bioactive and osteoconductive n-HA endows the 3D prints of poly(ethyleneglycol)diacrylate (PEGDA) composites with a high compression strength of 6.5 ± 1.4 MPa, about 342% improvement over neat PEGDA. This work demonstrates the first successful attempt on CLIP 3D printing of n-HA nanocomposites, providing a feasible, cost-effective and patient-specific solution to various fields in the biomedical industry.
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Affiliation(s)
- Xueyong Deng
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China.
| | - Bingxue Huang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China.
| | - Rui Hu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China.
| | - Liling Chen
- Chongqing Key Laboratory of Oral Disease and Biomedical Sciences and Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education and Stomatological Hospital of Chongqing Medical University, Chongqing 401174, China.
| | - Yingying Tang
- Chongqing Key Laboratory of Oral Disease and Biomedical Sciences and Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education and Stomatological Hospital of Chongqing Medical University, Chongqing 401174, China.
| | - Canhui Lu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China. and Advanced Polymer Materials Research Center of Sichuan University, Shishi 362700, China
| | - Zhenming Chen
- Guangxi Key Laboratory of Calcium Carbonate Resources Comprehensive Utilization at Hezhou University, Hezhou 542800, China
| | - Wei Zhang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China. and Advanced Polymer Materials Research Center of Sichuan University, Shishi 362700, China
| | - Ximu Zhang
- Chongqing Key Laboratory of Oral Disease and Biomedical Sciences and Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education and Stomatological Hospital of Chongqing Medical University, Chongqing 401174, China.
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Iordache T, Banu ND, Giol ED, Vuluga DM, Jerca FA, Jerca VV. Factorial design optimization of polystyrene microspheres obtained by aqueous dispersion polymerization in the presence of poly(2‐ethyl‐2‐oxazoline) reactive stabilizer. POLYM INT 2020. [DOI: 10.1002/pi.5974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tanta‐Verona Iordache
- National Research and Development Institute for Chemistry and Petrochemistry ICECHIM Bucharest Romania
| | - Nicoleta D Banu
- Centre of Organic Chemistry ‘Costin D. Nenitzescu’ Romanian Academy Bucharest Romania
| | - Elena D Giol
- Centre of Organic Chemistry ‘Costin D. Nenitzescu’ Romanian Academy Bucharest Romania
- ‘Cantacuzino’ National Medico‐Military Institute for Research and Development Bucharest Romania
| | - Dumitru M Vuluga
- Centre of Organic Chemistry ‘Costin D. Nenitzescu’ Romanian Academy Bucharest Romania
| | - Florica A Jerca
- Centre of Organic Chemistry ‘Costin D. Nenitzescu’ Romanian Academy Bucharest Romania
| | - Valentin V Jerca
- Centre of Organic Chemistry ‘Costin D. Nenitzescu’ Romanian Academy Bucharest Romania
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Modification of Collagen/Gelatin/Hydroxyethyl Cellulose-Based Materials by Addition of Herbal Extract-Loaded Microspheres Made from Gellan Gum and Xanthan Gum. MATERIALS 2020; 13:ma13163507. [PMID: 32784521 PMCID: PMC7476022 DOI: 10.3390/ma13163507] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 07/25/2020] [Accepted: 08/04/2020] [Indexed: 12/19/2022]
Abstract
Because consumers are nowadays focused on their health and appearance, natural ingredients and their novel delivery systems are one of the most developing fields of pharmacy, medicine, and cosmetics. The main goal of this study was to design, prepare, and characterize composite materials obtained by incorporation of microspheres into the porous polymer materials consisting of collagen, gelatin, and hydroxyethyl cellulose. Microspheres, based on gellan gum and xanthan gum with encapsulated Calendula officinalis flower extract, were produced by two methods: extrusion and emulsification. The release profile of the extract from both types of microspheres was compared. Then, obtained microparticles were incorporated into polymeric materials with a porous structure. This modification had an influence on porosity, density, swelling properties, mechanical properties, and stability of materials. Besides, in vitro tests were performed using mouse fibroblasts. Cell viability was assessed with the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay. The obtained materials, especially with microspheres prepared by emulsion method, can be potentially helpful when designing cosmetic forms because they were made from safely for skin ingredients used in this industry and the herbal extract was successfully encapsulated into microparticles.
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Orowitz TE, Ana Sombo PPAA, Rahayu D, Hasanah AN. Microsphere Polymers in Molecular Imprinting: Current and Future Perspectives. Molecules 2020; 25:molecules25143256. [PMID: 32708849 PMCID: PMC7397203 DOI: 10.3390/molecules25143256] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 07/12/2020] [Accepted: 07/14/2020] [Indexed: 11/16/2022] Open
Abstract
Molecularly imprinted polymers (MIPs) are specific crosslinked polymers that exhibit binding sites for template molecules. MIPs have been developed in various application areas of biology and chemistry; however, MIPs have some problems, including an irregular material shape. In recent years, studies have been conducted to overcome this drawback, with the synthesis of uniform microsphere MIPs or molecularly imprinted microspheres (MIMs). The polymer microsphere is limited to a minimum size of 5 nm and a molecular weight of 10,000 Da. This review describes the methods used to produce MIMs, such as precipitation polymerisation, controlled/'Living' radical precipitation polymerisation (CRPP), Pickering emulsion polymerisation and suspension polymerisation. In addition, some green chemistry aspects and future perspectives will also be given.
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Dashtimoghadam E, Fahimipour F, Tongas N, Tayebi L. Microfluidic fabrication of microcarriers with sequential delivery of VEGF and BMP-2 for bone regeneration. Sci Rep 2020; 10:11764. [PMID: 32678204 PMCID: PMC7366644 DOI: 10.1038/s41598-020-68221-w] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 05/26/2020] [Indexed: 12/21/2022] Open
Abstract
Wound instability and poor functional vascularization in bone tissue engineering lead to lack of tissue integration and ultimate failure of engineered grafts. In order to harness the regenerative potential of growth factors and stimulate bone healing, present study aims to design multifunctional cell therapy microcarriers with the capability of sequential delivery of essential growth factors, bone morphogenetic protein 2 (BMP-2) and vascular endothelial growth factor (VEGF). An on-chip double emulsion method was implemented to generate monodisperse VEGF encapsulated microcarriers. Bio-inspired poly(3,4-dihydroxyphenethylamine) (PDA) was then functionalized to the microcarriers surface for BMP-2 conjugation. The microcarriers were seeded with mesenchymal stem cells (MSCs) using a dynamic culture technique for cells expansion. Finally, the microcarriers were incorporated into an injectable alginate-RGD hydrogel laden with endothelial cells (ECs) for further analysis. The DNA and calcium content, as well as ALP activity of the construct were analyzed. The confocal fluorescent microscopy was employed to monitor the MSCs and tunneling structure of ECs. Eventually, the capability of developed microcarriers for bone tissue formation was examined in vivo. Microfluidic platform generated monodisperse VEGF-loaded PLGA microcarriers with size-dependent release patterns. Microcarriers generated with the on-chip technique showed more sustained VEGF release profiles compared to the conventional bulk mixing method. The PDA functionalization of microcarriers surface not only provided immobilization of BMP-2 with prolonged bioavailability, but also enhanced the attachment and proliferation of MSCs. Dynamic culturing of microcarriers showcased their great potential to boost MSCs population required for stem cell therapy of bone defects. ALP activity and calcium content analysis of MSCs-laden microcarriers loaded into injectable hydrogels revealed their capability of tunneling formation, vascular cell growth and osteogenic differentiation. The in vivo histology and real-time polymerase chain reaction analysis revealed that transplantation of MSC-laden microcarriers supports ectopic bone formation in the rat model. The presented approach to design bioactive microcarriers offer sustained sequential delivery of bone ECM chemical cues and offer an ideal stabilized 3D microenvironment for patient-specific cell therapy applications. The proposed methodology is readily expandable to integrate other cells and cytokines in a tuned spatiotemporal manner for personalized regenerative medicine.
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Affiliation(s)
| | - Farahnaz Fahimipour
- Marquette University School of Dentistry, Milwaukee, WI, USA
- Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Nikita Tongas
- Marquette University School of Dentistry, Milwaukee, WI, USA
| | - Lobat Tayebi
- Marquette University School of Dentistry, Milwaukee, WI, USA.
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Molavi F, Barzegar-Jalali M, Hamishehkar H. Polyester based polymeric nano and microparticles for pharmaceutical purposes: A review on formulation approaches. J Control Release 2020; 320:265-282. [DOI: 10.1016/j.jconrel.2020.01.028] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 01/15/2020] [Accepted: 01/17/2020] [Indexed: 12/18/2022]
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Nogueira JCF, Paliashvili K, Bradford A, Di Maggio F, Richards DA, Day RM, Chudasama V. Functionalised thermally induced phase separation (TIPS) microparticles enabled for "click" chemistry. Org Biomol Chem 2020; 18:2215-2218. [PMID: 32150198 PMCID: PMC7362741 DOI: 10.1039/d0ob00106f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 03/02/2020] [Indexed: 12/23/2022]
Abstract
Due to their homogeneity, tuneable properties, low cost and ease of manufacture, thermally induced phase separation (TIPS) polymeric microparticles are emerging as an exciting class of injectable device for the treatment of damaged tissue or complex diseases, such as cancer. However, relatively little work has explored enhancing surface functionalisation of this system. Herein, we present the functionalisation of TIPS microparticles with both small molecules and an antibody fragment of Herceptin™, via a heterobifunctional pyridazinedione linker capable of participating in SPAAC "click" chemistry, and compare it to the traditional method of preparing active-targeted microparticle systems, that is, physisorption of antibodies to the microparticle surface. Antigen-binding assays demonstrated that functionalisation of microparticles with Herceptin Fab, via a pyridazinedione linker, provided an enhanced avidity to HER2+ when compared to traditional physisorption methods.
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Affiliation(s)
- João C F Nogueira
- UCL Chemistry Department, University College London, Gower Street, London, WC1E 6BT, UK.
| | - Ketevan Paliashvili
- Centre for Precision Healthcare, UCL Division of Medicine, University College London, Gower Street, London, WC1E 6BT, UK.
| | - Alexandra Bradford
- Centre for Precision Healthcare, UCL Division of Medicine, University College London, Gower Street, London, WC1E 6BT, UK.
| | - Francesco Di Maggio
- Centre for Precision Healthcare, UCL Division of Medicine, University College London, Gower Street, London, WC1E 6BT, UK.
| | - Daniel A Richards
- UCL Chemistry Department, University College London, Gower Street, London, WC1E 6BT, UK.
| | - Richard M Day
- Centre for Precision Healthcare, UCL Division of Medicine, University College London, Gower Street, London, WC1E 6BT, UK. and The Discoveries Centre for Regenerative and Precision Medicine, University College London, Gower Street, London, WC1E 6BT, UK
| | - Vijay Chudasama
- UCL Chemistry Department, University College London, Gower Street, London, WC1E 6BT, UK.
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Nartop D, Yetim NK, Özkan EH, Sarı N. Enzyme immobilization on polymeric microspheres containing Schiff base for detection of organophosphate and carbamate insecticides. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127039] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Basharat M, Abbas Y, Liu W, Ali Z, Zhang S, Zou W, Wu Z, Wu D. Unusual excitation wavelength tunable multiple fluorescence from organocyclo-phosphazene microspheres: Crosslinked structure-property relationship. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121942] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Chojnowski J, Slomkowski S, Fortuniak W, Mizerska U, Pospiech P. Hydrophilic Polysiloxane Microspheres and Ceramic SiOC Microspheres Derived from Them. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01281-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Abstract
In this overview article, the research on polysiloxane microspheres performed in the authors’ laboratory is briefly reviewed. These microspheres are prepared in water emulsion from polyhydromethylsiloxane (PHMS). This polymer is cross-linked in the emulsion process by hydrosilylation using various low molecular weight cross-linkers having at least two vinyl functions. The microspheres contain a large number of silanol groups which give them hydrophilicity and a broad possibility of functionalization by condensation with reactive silanes bearing a functional group in the organic radical. Further transformation of these functions leads to materials for practical use, such as catalysts and biocidal powders. The hydrophilic-hydrophobic properties of the microspheres may be fine-tuned by silylation or modification of the precursor PHMS polymer. Pristine microspheres are highly hydrophilic and well-dispersed in water. They do not adsorb proteins and hydrophobic organic substances. Macropores may be generated in these particles by a simple modification of the emulsion procedure. These microspheres are also very good precursors for ceramic silicon oxycarbide microsphers because they retain their shape in pyrolytic processes even at high temperatures; and they give a high yield of ceramic material. The polysiloxane microspheres heated at 600 °C give micro and mezo porous materials with specific surface above 500 m2/g. When pyrolysed at temperatures 1000–1400 °C, they form solid ceramic microspheres of high strength. They retain spherical shape at 1500 °C although cracks are formed at their surfaces. Etching them with HF(aq) solution gives porous microspheres with specific surface above 1000 m2/g that is almost devoid of SiO2.
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Kaur A, Chattopadhyay S, Jain S, Singh H. Development of antimicrobial polyacrylonitrile microspheres for water disinfection. J Appl Polym Sci 2019. [DOI: 10.1002/app.47968] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Avneet Kaur
- Center for Biomedical EngineeringIndian Institute of Technology Delhi & All India Institute of Medical Science New Delhi India
| | - Sruti Chattopadhyay
- Center for Biomedical EngineeringIndian Institute of Technology Delhi & All India Institute of Medical Science New Delhi India
| | - Swati Jain
- Amity Institute of Nanotechnology, Amity University Sec. 125, Noida Uttar Pradesh India
| | - Harpal Singh
- Center for Biomedical EngineeringIndian Institute of Technology Delhi & All India Institute of Medical Science New Delhi India
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Gelatin‐Based Capsules through Interfacial Polymerization: Batch and Continuous Flow Synthesis. Chem Eng Technol 2019. [DOI: 10.1002/ceat.201900119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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48
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Elkasabgy NA, Abdel-Salam FS, Mahmoud AA, Basalious EB, Amer MS, Mostafa AA, Elkheshen SA. Long lasting in-situ forming implant loaded with raloxifene HCl: An injectable delivery system for treatment of bone injuries. Int J Pharm 2019; 571:118703. [PMID: 31536761 DOI: 10.1016/j.ijpharm.2019.118703] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 09/13/2019] [Accepted: 09/14/2019] [Indexed: 12/16/2022]
Abstract
Bone injury is very serious in elder people or osteoporotic patients. In-situ forming implants (IFI) for bone rebuilding are usually poly-lactic-co-glycolic acid (PLGA)-based, which have a burst release effect. This study aimed to prepare novel liquid lipid-based PLGA-IFI loaded with raloxifene hydrochloride for prolonged non-surgical treatment of bone injuries by applying solvent-induced phase inversion technique. Labrasol® and Maisine® were added to the selected IFI forming long lasting lipid-based IFI (LLL-IFI). The formulations were characterized by analysing their in-vitro drug release, solidification time, injectability, rheological properties, and DSC in addition to their morphological properties. Results revealed that the LLL-IFI composed of 10%w/v PLGA with a lactide to glycolide ratio of 75:25 with ester terminal and 10% Maisine® possessed the most sustained drug release and lowest burst effect, as well as delayed pore formation compared to its counterpart lacking Maisine®. The selected LLL-IFI and PLGA-IFI formulations were tested for their capability to enhance bone regeneration in bone injuries induced in rats. Both formulations succeeded in healing the bones completely with the superiority of LLL-IFI in the formation of well-organized bone structures lacking fibrous tissues. The results suggest that LLL-IFI and PLGA-IFI are innovative approaches for treating critical and non-critical sized bone injuries.
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Affiliation(s)
- Nermeen A Elkasabgy
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo, Egypt
| | | | - Azza A Mahmoud
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmaceutical Sciences and Pharmaceutical Industries, Future University in Egypt, Cairo, Egypt; Department of Pharmaceutical Technology, Pharmaceutical and Drug Industries Research Division, National Research Center, Dokki, Cairo, Egypt
| | - Emad B Basalious
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo, Egypt
| | - Mohammed S Amer
- Department of Surgery, Anaesthesiology and Radiology, Faculty of Veterinary Medicine, Cairo University, Egypt
| | - Amany A Mostafa
- Refractories, Ceramics and Building Materials Department, Inorganic Chemical Industries and Mineral Resources Division, Nanomedicine and Tissue Engineering Lab, National Research Centre, Dokki, Cairo, Egypt
| | - Seham A Elkheshen
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmaceutical Sciences and Pharmaceutical Industries, Future University in Egypt, Cairo, Egypt
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Hu J, Albadawi H, Oklu R, Chong BW, Deipolyi AR, Sheth RA, Khademhosseini A. Advances in Biomaterials and Technologies for Vascular Embolization. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1901071. [PMID: 31168915 PMCID: PMC7014563 DOI: 10.1002/adma.201901071] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 03/24/2019] [Indexed: 05/03/2023]
Abstract
Minimally invasive transcatheter embolization is a common nonsurgical procedure in interventional radiology used for the deliberate occlusion of blood vessels for the treatment of diseased or injured vasculature. A wide variety of embolic agents including metallic coils, calibrated microspheres, and liquids are available for clinical practice. Additionally, advances in biomaterials, such as shape-memory foams, biodegradable polymers, and in situ gelling solutions have led to the development of novel preclinical embolic agents. The aim here is to provide a comprehensive overview of current and emerging technologies in endovascular embolization with respect to devices, materials, mechanisms, and design guidelines. Limitations and challenges in embolic materials are also discussed to promote advancement in the field.
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Affiliation(s)
- Jingjie Hu
- Division of Vascular & Interventional Radiology, Minimally Invasive Therapeutics Laboratory, Mayo Clinic, 13400 East Shea Blvd., Scottsdale, Arizona 85259, USA
| | - Hassan Albadawi
- Division of Vascular & Interventional Radiology, Minimally Invasive Therapeutics Laboratory, Mayo Clinic, 13400 East Shea Blvd., Scottsdale, Arizona 85259, USA
| | - Rahmi Oklu
- Division of Vascular & Interventional Radiology, Minimally Invasive Therapeutics Laboratory, Mayo Clinic, 13400 East Shea Blvd., Scottsdale, Arizona 85259, USA
| | - Brian W Chong
- Departments of Radiology and Neurological Surgery, Mayo Clinic, 13400 East Shea Blvd., Scottsdale, Arizona 85259, USA
| | - Amy R. Deipolyi
- Department of Interventional Radiology, Memorial Sloan Kettering Cancer Center, Weill Cornell Medical Center, 1275 York Avenue, New York, New York 10065, USA
| | - Rahul A. Sheth
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77054, USA
| | - Ali Khademhosseini
- Department of Bioengineering, Department of Radiological Sciences, Department of Chemical and Biomolecular Engineering, Center for Minimally Invasive Therapeutics, California Nanosystems Institute, University of California, 410 Westwood Plaza, Los Angeles, California 90095, USA
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Wang J, Li J, Ren J. Surface Modification of Poly(lactic-co-glycolic acid) Microspheres with Enhanced Hydrophilicity and Dispersibility for Arterial Embolization. MATERIALS 2019; 12:ma12121959. [PMID: 31216635 PMCID: PMC6630409 DOI: 10.3390/ma12121959] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 06/14/2019] [Accepted: 06/17/2019] [Indexed: 12/24/2022]
Abstract
In this study, a series of poly(lactic-co-glycolic acid) (PLGA) microspheres with different particle sizes for arterial embolization surgery were prepared. The polydopamine (PDA) and polydopamine/polyethyleneimine (PDA/PEI) were respectively coated on the PLGA microspheres as shells, in order to improve the hydrophilicity and dispersibility of PLGA embolization microspheres. After modification, with the introduction of PDA and PEI, many hydrophilic hydroxyl and amine groups appeared on the surface of the PLGA@PDA and PLGA@PDA/PEI microspheres. SEM images showed the morphologies, sizes, and changes of the as-prepared microspheres. Meanwhile, the XPS and FT-IR spectra demonstrated the successful modification of the PDA and PEI. Water contact angles (WCAs) of the PLGA@PDA and PLGA@PDA/PEI microspheres became smaller, indicating a certain improvement in surface hydrophilicity. In addition, the results of in vitro cytotoxicity showed that modification had little effect on the biosafety of the microspheres. The modified PLGA microspheres suggest a promising prospective application in biomedical field, as the modified microspheres can reduce difficulties in embolization surgery.
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Affiliation(s)
- Jiao Wang
- Institute of Nano and Biopolymeric Materials, Department of Polymeric Materials, Shanghai Key Laboratory for R&D and Application of Metalic Functional Materials, Key Laboratory of Advanced Civil Engineering Materials, Ministry of Education, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China.
| | - Jianbo Li
- Institute of Nano and Biopolymeric Materials, Department of Polymeric Materials, Shanghai Key Laboratory for R&D and Application of Metalic Functional Materials, Key Laboratory of Advanced Civil Engineering Materials, Ministry of Education, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China.
| | - Jie Ren
- Institute of Nano and Biopolymeric Materials, Department of Polymeric Materials, Shanghai Key Laboratory for R&D and Application of Metalic Functional Materials, Key Laboratory of Advanced Civil Engineering Materials, Ministry of Education, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China.
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