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Mondal S, Tavares MT, Brazinha C. Sustainable production of porous chitosan microparticles by energy-efficient membrane emulsification. Heliyon 2024; 10:e31823. [PMID: 38845862 PMCID: PMC11153182 DOI: 10.1016/j.heliyon.2024.e31823] [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: 11/27/2023] [Revised: 04/01/2024] [Accepted: 05/22/2024] [Indexed: 06/09/2024] Open
Abstract
In drug delivery, it is common to use porous particles as carrier media, instead of dense particles, due to their high specific surface area and available entrapment volume, which allows a higher amount of drug to be encapsulated and then released. Chitosan microparticles are extensively used in drug delivery, but porous chitosan microparticles are scarcely reported. In this work, the preparation of porous chitosan microparticles using membrane emulsification is addressed, a technology that involves mild operating conditions and less energy consumption than traditional methods (such as ultrasound), and with higher control of the particle size. The dense structure is obtained by a water-in-oil emulsion. The porous structure is obtained by a gas-in-water-in-oil G/W/O double emulsion, where argon bubbles get entrapped in an aqueous chitosan solution that is further emulsified in a paraffin/petroleum ether mixture. Porous chitosan particles were obtained with sizes of 7.7 ± 1.6 μm, which was comparable with dense chitosan particles (6.2 ± 2.3 μm). The pore structure was optimized by varying the argon flow rate, being optimized at 0.24 L h-1. The impact of drug loading by adsorption or encapsulation, and of the drug release behaviour when using porous and dense particles were assessed, using the protein bovine serum albumin (BSA) as a model drug. The results showed that by encapsulating BSA the loading efficiency was above 95 % for both types of particles, with the release being slightly slower for the dense particles. As for the adsorbed BSA, the loading efficiency was significantly higher for porous particles - 70 % - against the 40 % for dense particles. Porous chitosan particles were successfully obtained using the membrane emulsification technology and showed that these carriers are advantageous regarding drug loading and release.
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Affiliation(s)
| | | | - Carla Brazinha
- LAQV/Requimte, Department of Chemistry, NOVA School of Science and Technology, FCT NOVA, Universidade NOVA de Lisboa, 2829-516, Caparica, Portugal
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Ashrafizadeh M, Hushmandi K, Mirzaei S, Bokaie S, Bigham A, Makvandi P, Rabiee N, Thakur VK, Kumar AP, Sharifi E, Varma RS, Aref AR, Wojnilowicz M, Zarrabi A, Karimi‐Maleh H, Voelcker NH, Mostafavi E, Orive G. Chitosan-based nanoscale systems for doxorubicin delivery: Exploring biomedical application in cancer therapy. Bioeng Transl Med 2022; 8:e10325. [PMID: 36684100 PMCID: PMC9842052 DOI: 10.1002/btm2.10325] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/12/2022] [Accepted: 03/17/2022] [Indexed: 02/06/2023] Open
Abstract
Green chemistry has been a growing multidisciplinary field in recent years showing great promise in biomedical applications, especially for cancer therapy. Chitosan (CS) is an abundant biopolymer derived from chitin and is present in insects and fungi. This polysaccharide has favorable characteristics, including biocompatibility, biodegradability, and ease of modification by enzymes and chemicals. CS-based nanoparticles (CS-NPs) have shown potential in the treatment of cancer and other diseases, affording targeted delivery and overcoming drug resistance. The current review emphasizes on the application of CS-NPs for the delivery of a chemotherapeutic agent, doxorubicin (DOX), in cancer therapy as they promote internalization of DOX in cancer cells and prevent the activity of P-glycoprotein (P-gp) to reverse drug resistance. These nanoarchitectures can provide co-delivery of DOX with antitumor agents such as curcumin and cisplatin to induce synergistic cancer therapy. Furthermore, co-loading of DOX with siRNA, shRNA, and miRNA can suppress tumor progression and provide chemosensitivity. Various nanostructures, including lipid-, carbon-, polymeric- and metal-based nanoparticles, are modifiable with CS for DOX delivery, while functionalization of CS-NPs with ligands such as hyaluronic acid promotes selectivity toward tumor cells and prevents DOX resistance. The CS-NPs demonstrate high encapsulation efficiency and due to protonation of amine groups of CS, pH-sensitive release of DOX can occur. Furthermore, redox- and light-responsive CS-NPs have been prepared for DOX delivery in cancer treatment. Leveraging these characteristics and in view of the biocompatibility of CS-NPs, we expect to soon see significant progress towards clinical translation.
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Affiliation(s)
- Milad Ashrafizadeh
- Faculty of Engineering and Natural SciencesSabanci University, Üniversite CaddesiTuzla, IstanbulTurkey
| | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary MedicineUniversity of TehranTehranIran
| | - Sepideh Mirzaei
- Department of Biology, Faculty of ScienceIslamic Azad University, Science and Research BranchTehranIran
| | - Saied Bokaie
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary MedicineUniversity of TehranTehranIran
| | - Ashkan Bigham
- Institute of Polymers, Composites and Biomaterials ‐ National Research Council (IPCB‐CNR)NaplesItaly
| | - Pooyan Makvandi
- Istituto Italiano di Tecnologia, Center for Materials InterfacesPontedera, PisaItaly
| | - Navid Rabiee
- School of Engineering, Macquarie UniversitySydneyNew South WalesAustralia
| | - Vijay Kumar Thakur
- School of EngineeringUniversity of Petroleum & Energy Studies (UPES)DehradunUttarakhandIndia,Biorefining and Advanced Materials Research Center, Scotland's Rural College (SRUC)EdinburghUK
| | - Alan Prem Kumar
- NUS Centre for Cancer Research (N2CR)Yong Loo Lin School of Medicine, National University of SingaporeSingaporeSingapore,Department of PharmacologyYong Loo Lin School of Medicine, National University of SingaporeKent RidgeSingapore
| | - Esmaeel Sharifi
- Department of Tissue Engineering and BiomaterialsSchool of Advanced Medical Sciences and Technologies, Hamadan University of Medical SciencesHamadanIran
| | - Rajender S. Varma
- Regional Center of Advanced Technologies and MaterialsCzech Advanced Technology and Research Institute, Palacky UniversityOlomoucCzech Republic
| | - Amir Reza Aref
- Belfer Center for Applied Cancer Science, Dana‐Farber Cancer Institute, Harvard Medical SchoolBostonMassachusettsUSA,Xsphera Biosciences Inc.BostonMassachusettsUSA
| | - Marcin Wojnilowicz
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) ManufacturingClaytonVictoriaAustralia,Monash Institute of Pharmaceutical SciencesParkvilleVictoriaAustralia
| | - Ali Zarrabi
- Department of Biomedical Engineering, Faculty of Engineering and Natural SciencesIstinye UniversityIstanbulTurkey
| | - Hassan Karimi‐Maleh
- School of Resources and Environment, University of Electronic Science and Technology of ChinaChengduPR China,Department of Chemical EngineeringQuchan University of TechnologyQuchanIran,Department of Chemical Sciences, University of Johannesburg, Doornfontein CampusJohannesburgSouth Africa
| | - Nicolas H. Voelcker
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) ManufacturingClaytonVictoriaAustralia,Monash Institute of Pharmaceutical SciencesParkvilleVictoriaAustralia,Melbourne Centre for NanofabricationVictorian Node of the Australian National Fabrication FacilityClaytonVictoriaAustralia
| | - Ebrahim Mostafavi
- Stanford Cardiovascular Institute, Stanford University School of MedicineStanfordCaliforniaUSA,Department of MedicineStanford University School of MedicineStanfordCaliforniaUSA
| | - Gorka Orive
- NanoBioCel Research Group, School of PharmacyUniversity of the Basque Country (UPV/EHU)Vitoria‐GasteizSpain,University Institute for Regenerative Medicine and Oral Implantology–UIRMI(UPV/EHU‐Fundación Eduardo Anitua)Vitoria‐GasteizSpain,Bioaraba, NanoBioCel Research GroupVitoria‐GasteizSpain,Singapore Eye Research InstituteSingapore
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Anboo S, Lau SY, Kansedo J, Yap P, Hadibarata T, Jeevanandam J, Kamaruddin AH. Recent Advancements in Enzyme‐Incorporated Nanomaterials: Synthesis, Mechanistic Formation and Applications. Biotechnol Bioeng 2022; 119:2609-2638. [PMID: 35851660 PMCID: PMC9543334 DOI: 10.1002/bit.28185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 06/21/2022] [Accepted: 07/15/2022] [Indexed: 11/09/2022]
Abstract
Over the past decade, nanotechnology has been developed and employed across various entities. Among the numerous nanostructured material types, enzyme‐incorporated nanomaterials have shown great potential in various fields, as an alternative to biologically derived as well as synthetically developed hybrid structures. The mechanism of incorporating enzyme onto a nanostructure depends on several factors including the method of immobilization, type of nanomaterial, as well as operational and environmental conditions. The prospects of enzyme‐incorporated nanomaterials have shown promising results across various applications, such as biocatalysts, biosensors, drug therapy, and wastewater treatment. This is due to their excellent ability to exhibit chemical and physical properties such as high surface‐to‐volume ratio, recovery and/or reusability rates, sensitivity, response scale, and stable catalytic activity across wide operating conditions. In this review, the evolution of enzyme‐incorporated nanomaterials along with their impact on our society due to its state‐of‐the‐art properties, and its significance across different industrial applications are discussed. In addition, the weakness and future prospects of enzyme‐incorporated nanomaterials were also discussed to guide scientists for futuristic research and development in this field.
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Affiliation(s)
- Shamini Anboo
- Department of Chemical EngineeringFaculty of Engineering and Science, Curtin University MalaysiaCDT 25098009MiriSarawakMalaysia
| | - Sie Yon Lau
- Department of Chemical EngineeringFaculty of Engineering and Science, Curtin University MalaysiaCDT 25098009MiriSarawakMalaysia
| | - Jibrail Kansedo
- Department of Chemical EngineeringFaculty of Engineering and Science, Curtin University MalaysiaCDT 25098009MiriSarawakMalaysia
| | - Pow‐Seng Yap
- Department of Civil EngineeringXi’an Jiaotong‐Liverpool UniversitySuzhou215123China
| | - Tony Hadibarata
- Department of Chemical EngineeringFaculty of Engineering and Science, Curtin University MalaysiaCDT 25098009MiriSarawakMalaysia
| | - Jaison Jeevanandam
- CQM‐Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus da Penteada9020‐105FunchalPortugal
| | - Azlina Harun Kamaruddin
- School of Chemical EngineeringUniversiti Sains Malaysia14300 Nibong TebalSeberang Perai SelatanPenangMalaysia
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Oral Bioavailability Enhancement of Melanin Concentrating Hormone, Development and In Vitro Pharmaceutical Assessment of Novel Delivery Systems. Pharmaceutics 2021; 14:pharmaceutics14010009. [PMID: 35056908 PMCID: PMC8778866 DOI: 10.3390/pharmaceutics14010009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/10/2021] [Accepted: 12/20/2021] [Indexed: 12/02/2022] Open
Abstract
The rapid progress in biotechnology over the past few decades has accelerated the large-scale production of therapeutic peptides and proteins, making them available in medical practice. However, injections are the most common method of administration; these procedures might lead to inconvenience. Non-invasive medications, such as oral administration of bio-compounds, can reduce or eliminate pain and increase safety. The aim of this project was to develop and characterize novel melanin concentrating hormone (MCH) formulations for oral administration. As a drug delivery system, penetration enhancer combined alginate beads were formulated and characterized. The combination of alginate carriers with amphiphilic surfactants has not been described yet. Due to biosafety having high priority in the case of novel pharmaceutical formulations, the biocompatibility of selected auxiliary materials and their combinations was evaluated using different in vitro methods. Excipients were selected according to the performed toxicity measurements. Besides the cell viability tests, physical properties and complex bioavailability assessments were performed as well. Our results suggest that alginate beads are able to protect melanin concentrating hormones. It has been also demonstrated that penetration enhancer combined alginate beads might play a key role in bioavailability improvement. These formulations were found to be promising tools for oral peptide delivery. Applied excipients and the performed delivery systems are safe and highly tolerable; thus, they can improve patients’ experience and promote adherence.
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Muzzi L, Di Lisa D, Arnaldi P, Aprile D, Pastorino L, Martinoia S, Frega M. Rapid generation of functional engineered 3D human neuronal assemblies: network dynamics evaluated by micro-electrodes arrays. J Neural Eng 2021; 18. [PMID: 34844234 DOI: 10.1088/1741-2552/ac3e02] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 11/29/2021] [Indexed: 12/31/2022]
Abstract
Objective.In this work we adapted a protocol for the fast generation of human neurons to build 3D neuronal networks with controlled structure and cell composition suitable for systematic electrophysiological investigations.Approach.We used biocompatible chitosan microbeads as scaffold to build 3D networks and to ensure nutrients-medium exchange from the core of the structure to the external environment. We used excitatory neurons derived from human-induced pluripotent stem cells (hiPSCs) co-cultured with astrocytes. By adapting the well-established NgN2 differentiation protocol, we obtained 3D engineered networks with good control over cell density, volume and cell composition. We coupled the 3D neuronal networks to 60-channel micro electrode arrays (MEAs) to monitor and characterize their electrophysiological development. In parallel, we generated two-dimensional neuronal networks cultured on chitosan to compare the results of the two models.Main results.We sustained samples until 60 din vitro(DIV) and 3D cultures were healthy and functional. From the structural point of view, the hiPSC derived neurons were able to adhere to chitosan microbeads and to form a stable 3D assembly thanks to the connections among cells. From a functional point of view, neuronal networks showed spontaneous activity after a couple of weeks.Significance.We presented a particular method to generate 3D engineered cultures for the first time with human-derived neurons coupled to MEAs, overcoming some of the limitations related to 2D and 3D neuronal networks and thus increasing the therapeutic target potential of these models for biomedical applications.
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Affiliation(s)
- L Muzzi
- Department of Informatics, Bioengineering, Robotics, and Systems Engineering (DIBRIS), University of Genova, Genova, Italy
| | - D Di Lisa
- Department of Informatics, Bioengineering, Robotics, and Systems Engineering (DIBRIS), University of Genova, Genova, Italy
| | - P Arnaldi
- Department of Informatics, Bioengineering, Robotics, and Systems Engineering (DIBRIS), University of Genova, Genova, Italy
| | - D Aprile
- Department of Experimental Medicine, University of Genoa, Genoa, Italy
| | - L Pastorino
- Department of Informatics, Bioengineering, Robotics, and Systems Engineering (DIBRIS), University of Genova, Genova, Italy
| | - S Martinoia
- Department of Informatics, Bioengineering, Robotics, and Systems Engineering (DIBRIS), University of Genova, Genova, Italy
| | - M Frega
- Department of Clinical Neurophysiology, University of Twente, 7522 NB Enschede, The Netherlands.,Department of Human Genetics, Radboudumc, Donders Institute for Brain, Cognition, and Behaviour, 6500 HB Nijmegen, The Netherlands
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Kasza K, Gurnani P, Hardie KR, Cámara M, Alexander C. Challenges and solutions in polymer drug delivery for bacterial biofilm treatment: A tissue-by-tissue account. Adv Drug Deliv Rev 2021; 178:113973. [PMID: 34530014 DOI: 10.1016/j.addr.2021.113973] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 08/12/2021] [Accepted: 09/08/2021] [Indexed: 02/07/2023]
Abstract
To tackle the emerging antibiotic resistance crisis, novel antimicrobial approaches are urgently needed. Bacterial communities (biofilms) are a particular concern in this context. Biofilms are responsible for most human infections and are inherently less susceptible to antibiotic treatments. Biofilms have been linked with several challenging chronic diseases, including implant-associated osteomyelitis and chronic wounds. The specific local environments present in the infected tissues further contribute to the rise in antibiotic resistance by limiting the efficacy of systemic antibiotic therapies and reducing drug concentrations at the infection site, which can lead to reoccurring infections. To overcome the shortcomings of systemic drug delivery, encapsulation within polymeric carriers has been shown to enhance antimicrobial efficacy, permeation and retention at the infection site. In this Review, we present an overview of current strategies for antimicrobial encapsulation within polymeric carriers, comparing challenges and solutions on a tissue-by-tissue basis. We compare challenges and proposed drug delivery solutions from the perspective of the local environments for biofilms found in oral, wound, gastric, urinary tract, bone, pulmonary, vaginal, ocular and middle/inner ear tissues. We will also discuss future challenges and barriers to clinical translation for these therapeutics. The following Review demonstrates there is a significant imbalance between the research focus being placed on different tissue types, with some targets (oral and wound biofims) being extensively more studied than others (vaginal and otitis media biofilms and endocarditis). Furthermore, the importance of the local tissue environment when selecting target therapies is demonstrated, with some materials being optimal choices for certain sites of bacterial infection, while having limited applicability in others.
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Yan T, Tao Y, Wang X, Lv C, Miao G, Wang S, Wang D, Wang Z. Preparation, characterization and evaluation of the antioxidant capacity and antitumor activity of myricetin microparticles formated by supercritical antisolvent technology. J Supercrit Fluids 2021. [DOI: 10.1016/j.supflu.2021.105290] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Arnaldi P, Di Lisa D, Maddalena L, Carosio F, Fina A, Pastorino L, Monticelli O. A facile approach for the development of high mechanical strength 3D neuronal network scaffold based on chitosan and graphite nanoplatelets. Carbohydr Polym 2021; 271:118420. [PMID: 34364561 DOI: 10.1016/j.carbpol.2021.118420] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 06/16/2021] [Accepted: 07/06/2021] [Indexed: 12/31/2022]
Abstract
In this work, novel composite microparticles based on chitosan (CHI) and graphite nanoplatelets (GNP) were developed as 3D scaffolds for neuronal cells. The aim is to improve the scaffold strength while maintaining its ability to sustain cell adhesion and differentiation. An air-assisted jetting technique followed by physical crosslinking is employed to obtain CHI/GNP microparticles. Optical and Field Emission Scanning Electron Microscopy micrographs showed a uniform distribution of GNP within the CHI porous matrix. The presence of GNP turned out to improve the strength of the microparticles while conferring good electrical conductivity and ameliorating their stability in aqueous environment. The morphological and immunocytochemical characterization, combined with a preliminary electrophysiological analysis, evidenced the effectiveness of the developed composite microparticles as a scaffold for neuron growth. These scaffolds could be employed for the development of advanced 3D neuronal in vitro models for networks dynamics analysis and drug screening.
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Affiliation(s)
- Pietro Arnaldi
- Dipartimento di Informatica, Bioingegneria, Robotica e Ingegneria dei Sistemi, Università degli studi di Genova, Via All'Opera Pia 13, 16145 Genoa, Italy.
| | - Donatella Di Lisa
- Dipartimento di Informatica, Bioingegneria, Robotica e Ingegneria dei Sistemi, Università degli studi di Genova, Via All'Opera Pia 13, 16145 Genoa, Italy.
| | - Lorenza Maddalena
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino-sede di Alessandria, viale Teresa Michel, 5, 15121 Alessandria, Italy.
| | - Federico Carosio
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino-sede di Alessandria, viale Teresa Michel, 5, 15121 Alessandria, Italy.
| | - Alberto Fina
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino-sede di Alessandria, viale Teresa Michel, 5, 15121 Alessandria, Italy.
| | - Laura Pastorino
- Dipartimento di Informatica, Bioingegneria, Robotica e Ingegneria dei Sistemi, Università degli studi di Genova, Via All'Opera Pia 13, 16145 Genoa, Italy.
| | - Orietta Monticelli
- Dipartimento di Chimica e Chimica Industriale, Università degli studi di Genova, Via Dodecaneso 31, 16146 Genoa, Italy.
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Chen S, Zhu L, Du Z, Ma R, Yan T, Alimu G, Zhang X, Alifu N, Ma C. Polymer encapsulated clinical ICG nanoparticles for enhanced photothermal therapy and NIR fluorescence imaging in cervical cancer. RSC Adv 2021; 11:20850-20858. [PMID: 35479387 PMCID: PMC9034030 DOI: 10.1039/d1ra02875h] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 06/04/2021] [Indexed: 12/19/2022] Open
Abstract
Photothermal therapy (PTT) is a popular tumor therapy method, which is based on efficient photothermal nanoagents (PTNs). Clinical Indocyanine Green (ICG), as a Food and Drug Administration (FDA) approved agent, is an often-used PTN, meanwhile it is also a good near-infrared (NIR) fluorescence contrast agent. However, the further applications of ICG in biomedical fields are limited due to its poor stability. In this study, ICG was encapsulated by the amphiphilic polymer poly(styrene-co-maleic anhydride) (PSMA) to form ICG@PSMA nanoparticles. Furthermore, optical and thermal characteristics of ICG@PSMA nanoparticles were studied in detail. Strong NIR fluorescence and excellent photothermal properties of ICG@PSMA nanoparticles under 808 nm laser irradiation were measured. Besides, favorable biocompatibility of ICG@PSMA nanoparticles was demonstrated on a human cervical cancer cell line (HeLa) via cell viability studies. Hence, ICG@PSMA nanoparticles were further applied to enhanced PTT of living HeLa cells under 808 nm excitation, and a high PTT efficiency of ∼70% was obtained. The novel ICG nanoparticles as a promising PTT nanoplatform could offer an opportunity for further tumour treatments. PSMA encapsulated Clinical ICG to form ICG@PSMA nanoparticles. ICG@PSMA nanoparticles showed strong NIR fluorescence and excellent photothermal properties.![]()
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Affiliation(s)
- Shuang Chen
- State Key Laboratory of Pathogenesis, Prevention, and Treatment of High Incidence Diseases in Central Asia/Department of Gynecology, The First Affiliated Hospital of Xinjiang Medical University Urumqi 830054 China
| | - Lijun Zhu
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia/School of Medical Engineering and Technology, Xinjiang Medical University Urumqi 830054 China
| | - Zhong Du
- State Key Laboratory of Pathogenesis, Prevention, and Treatment of High Incidence Diseases in Central Asia/Department of Gynecology, The First Affiliated Hospital of Xinjiang Medical University Urumqi 830054 China
| | - Rong Ma
- State Key Laboratory of Pathogenesis, Prevention, and Treatment of High Incidence Diseases in Central Asia/Department of Gynecology, The First Affiliated Hospital of Xinjiang Medical University Urumqi 830054 China
| | - Ting Yan
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia/School of Medical Engineering and Technology, Xinjiang Medical University Urumqi 830054 China
| | - Gulinigaer Alimu
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia/School of Medical Engineering and Technology, Xinjiang Medical University Urumqi 830054 China
| | - Xueliang Zhang
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia/School of Medical Engineering and Technology, Xinjiang Medical University Urumqi 830054 China
| | - Nuernisha Alifu
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia/School of Medical Engineering and Technology, Xinjiang Medical University Urumqi 830054 China
| | - Cailing Ma
- State Key Laboratory of Pathogenesis, Prevention, and Treatment of High Incidence Diseases in Central Asia/Department of Gynecology, The First Affiliated Hospital of Xinjiang Medical University Urumqi 830054 China
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Stachowiak N, Kowalonek J, Kozlowska J. Freeze-Dried Matrices Composed of Degradable Polymers with Surfactant-Loaded Microparticles Based on Pectin and Sodium Alginate. MATERIALS (BASEL, SWITZERLAND) 2021; 14:3044. [PMID: 34204985 PMCID: PMC8199913 DOI: 10.3390/ma14113044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/27/2021] [Accepted: 05/29/2021] [Indexed: 12/28/2022]
Abstract
Gelatin/polyvinylpyrrolidone/hydroxyethyl cellulose/glycerol porous matrices with microspheres made of sodium alginate or pectin and sodium alginate were produced. A surfactant was loaded into these microparticles. The microspheres were characterized using optical microscopy, scanning electron microscopy SEM, and laser diffraction particle size analyzer. For the matrices, the density, porosity, swelling capacity, dissolution in phosphate saline buffer were determined and SEM, mechanical, and thermogravimetric studies were applied. The results showed that the size of the two-component microspheres was slightly larger than that of single-ingredient microparticles. The images confirmed the spherical shape of the microparticles. The prepared matrices had high water uptake ability and porosity due to the presence of hydrophilic polymers. The presence of microparticles in the matrices caused a decrease in these parameters. Degradation of the composites with the microspheres was significantly faster than the matrix without them. The addition of microparticles increased the stiffness and toughness of the prepared materials. The efficiency of the thermal decomposition main stage was reduced in the samples with microspheres, whereas a char residue increased in these composites.
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Affiliation(s)
- Natalia Stachowiak
- Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland; (J.K.); (J.K.)
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Arnaldi P, Carosio F, Di Lisa D, Muzzi L, Monticelli O, Pastorino L. Assembly of chitosan-graphite oxide nanoplatelets core shell microparticles for advanced 3D scaffolds supporting neuronal networks growth. Colloids Surf B Biointerfaces 2020; 196:111295. [DOI: 10.1016/j.colsurfb.2020.111295] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/17/2020] [Accepted: 07/29/2020] [Indexed: 01/05/2023]
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