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Zhang L, Ma M, Li J, Qiao K, Xie Y, Zheng Y. Stimuli-responsive microcarriers and their application in tissue repair: A review of magnetic and electroactive microcarrier. Bioact Mater 2024; 39:147-162. [PMID: 38808158 PMCID: PMC11130597 DOI: 10.1016/j.bioactmat.2024.05.018] [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: 12/19/2023] [Revised: 04/07/2024] [Accepted: 05/07/2024] [Indexed: 05/30/2024] Open
Abstract
Microcarrier applications have made great advances in tissue engineering in recent years, which can load cells, drugs, and bioactive factors. These microcarriers can be minimally injected into the defect to help reconstruct a good microenvironment for tissue repair. In order to achieve more ideal performance and face more complex tissue damage, an increasing amount of effort has been focused on microcarriers that can actively respond to external stimuli. These microcarriers have the functions of directional movement, targeted enrichment, material release control, and providing signals conducive to tissue repair. Given the high controllability and designability of magnetic and electroactive microcarriers, the research progress of these microcarriers is highlighted in this review. Their structure, function and applications, potential tissue repair mechanisms, and challenges are discussed. In summary, through the design with clinical translation ability, meaningful and comprehensive experimental characterization, and in-depth study and application of tissue repair mechanisms, stimuli-responsive microcarriers have great potential in tissue repair.
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Affiliation(s)
- LiYang Zhang
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Mengjiao Ma
- Beijing Wanjie Medical Device Co., Ltd, Beijing, China
| | - Junfei Li
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Kun Qiao
- Beijing Gerecov Technology Company Ltd., Beijing, China
| | - Yajie Xie
- Beijing Gerecov Technology Company Ltd., Beijing, China
| | - Yudong Zheng
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
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2
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Li HY, Kong XJ, Han SD, Pang J, He T, Wang GM, Bu XH. Metalation of metal-organic frameworks: fundamentals and applications. Chem Soc Rev 2024; 53:5626-5676. [PMID: 38655667 DOI: 10.1039/d3cs00873h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Metalation of metal-organic frameworks (MOFs) has been developed as a prominent strategy for materials functionalization for pore chemistry modulation and property optimization. By introducing exotic metal ions/complexes/nanoparticles onto/into the parent framework, many metallized MOFs have exhibited significantly improved performance in a wide range of applications. In this review, we focus on the research progress in the metalation of metal-organic frameworks during the last five years, spanning the design principles, synthetic strategies, and potential applications. Based on the crystal engineering principles, a minor change in the MOF composition through metalation would lead to leveraged variation of properties. This review starts from the general strategies established for the incorporation of metal species within MOFs, followed by the design principles to graft the desired functionality while maintaining the porosity of frameworks. Facile metalation has contributed a great number of bespoke materials with excellent performance, and we summarize their applications in gas adsorption and separation, heterogeneous catalysis, detection and sensing, and energy storage and conversion. The underlying mechanisms are also investigated by state-of-the-art techniques and analyzed for gaining insight into the structure-property relationships, which would in turn facilitate the further development of design principles. Finally, the current challenges and opportunities in MOF metalation have been discussed, and the promising future directions for customizing the next-generation advanced materials have been outlined as well.
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Affiliation(s)
- Hai-Yu Li
- College of Chemistry and Chemical Engineering, Qingdao University, Shandong 266071, China.
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Centre, TKL of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin 300350, China.
| | - Xiang-Jing Kong
- Department of Chemical Science, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| | - Song-De Han
- College of Chemistry and Chemical Engineering, Qingdao University, Shandong 266071, China.
| | - Jiandong Pang
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Centre, TKL of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin 300350, China.
| | - Tao He
- College of Chemistry and Chemical Engineering, Qingdao University, Shandong 266071, China.
- Department of Chemical Science, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| | - Guo-Ming Wang
- College of Chemistry and Chemical Engineering, Qingdao University, Shandong 266071, China.
| | - Xian-He Bu
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Centre, TKL of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin 300350, China.
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Zhang J, Tang K, Liu Z, Zhang Z, Duan S, Wang H, Yang H, Yang D, Fan W. Tumor microenvironment-responsive degradable silica nanoparticles: design principles and precision theranostic applications. NANOSCALE HORIZONS 2024; 9:186-214. [PMID: 38164973 DOI: 10.1039/d3nh00388d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Silica nanoparticles have emerged as promising candidates in the field of nanomedicine due to their remarkable versatility and customizable properties. However, concerns about their potential toxicity in healthy tissues and organs have hindered their widespread clinical translation. To address this challenge, significant attention has been directed toward a specific subset of silica nanoparticles, namely degradable silica nanoparticles, primarily because of their excellent biocompatibility and responsive biodegradability. In this review, we provide a comprehensive understanding of degradable silica nanoparticles, categorizing them into two distinct groups: inorganic species-doped and organic moiety-doped silica nanoparticles based on their framework components. Next, the recent progress of tumor microenvironment (TME)-responsive degradable silica nanoparticles for precision theranostic applications is summarized in detail. Finally, current bottlenecks and future opportunities of theranostic nanomedicines based on degradable silica nanoparticles in clinical applications are also outlined and discussed. The aim of this comprehensive review is to shed light on the potential of degradable silica nanoparticles in addressing current challenges in nanomedicine, offering insights into their design, applications in tumor diagnosis and treatment, and paving the way for future advancements in clinical theranostic nanomedicines.
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Affiliation(s)
- Junjie Zhang
- School of Fundamental Sciences, Bengbu Medical College, Bengbu 233030, P. R. China.
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, P. R. China
| | - Kaiyuan Tang
- School of Fundamental Sciences, Bengbu Medical College, Bengbu 233030, P. R. China.
| | - Zilu Liu
- School of Fundamental Sciences, Bengbu Medical College, Bengbu 233030, P. R. China.
| | - Zhijing Zhang
- School of Fundamental Sciences, Bengbu Medical College, Bengbu 233030, P. R. China.
| | - Shufan Duan
- School of Fundamental Sciences, Bengbu Medical College, Bengbu 233030, P. R. China.
| | - Hui Wang
- School of Fundamental Sciences, Bengbu Medical College, Bengbu 233030, P. R. China.
| | - Hui Yang
- School of Fundamental Sciences, Bengbu Medical College, Bengbu 233030, P. R. China.
| | - Dongliang Yang
- Nanjing Polytechnic Institute, Nanjing 210048, P. R. China.
| | - Wenpei Fan
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing 211198, P. R. China.
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Van de Walle A, Figuerola A, Espinosa A, Abou-Hassan A, Estrader M, Wilhelm C. Emergence of magnetic nanoparticles in photothermal and ferroptotic therapies. MATERIALS HORIZONS 2023; 10:4757-4775. [PMID: 37740347 DOI: 10.1039/d3mh00831b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
Abstract
With their distinctive physicochemical features, nanoparticles have gained recognition as effective multifunctional tools for biomedical applications, with designs and compositions tailored for specific uses. Notably, magnetic nanoparticles stand out as first-in-class examples of multiple modalities provided by the iron-based composition. They have long been exploited as contrast agents for magnetic resonance imaging (MRI) or as anti-cancer agents generating therapeutic hyperthermia through high-frequency magnetic field application, known as magnetic hyperthermia (MHT). This review focuses on two more recent applications in oncology using iron-based nanomaterials: photothermal therapy (PTT) and ferroptosis. In PTT, the iron oxide core responds to a near-infrared (NIR) excitation and generates heat in its surrounding area, rivaling the efficiency of plasmonic gold-standard nanoparticles. This opens up the possibility of a dual MHT + PTT approach using a single nanomaterial. Moreover, the iron composition of magnetic nanoparticles can be harnessed as a chemotherapeutic asset. Degradation in the intracellular environment triggers the release of iron ions, which can stimulate the production of reactive oxygen species (ROS) and induce cancer cell death through ferroptosis. Consequently, this review emphasizes these emerging physical and chemical approaches for anti-cancer therapy facilitated by magnetic nanoparticles, combining all-in-one functionalities.
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Affiliation(s)
- Aurore Van de Walle
- Laboratory Physical Chemistry Curie (PCC), UMR168, Curie Institute and CNRS, 75005 Paris, France.
| | - Albert Figuerola
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona, Martí i Franqués 1, E-08028 Barcelona, Spain
- Institute of Nanoscience and Nanotechnology of the University of Barcelona (IN2UB), Martí i Franques 1, E-08028 Barcelona, Spain
| | - Ana Espinosa
- Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas, calle Sor Juana Inés de la Cruz 3, 28049-Madrid, Spain
| | - Ali Abou-Hassan
- Sorbonne Université, UMR CNRS 8234, Physico-chimie des Électrolytes et Nanosystèmes Interfaciaux (PHENIX), F-75005, Paris, France
- Institut Universitaire de France (IUF), 75231 Cedex 05, Paris, France
| | - Marta Estrader
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona, Martí i Franqués 1, E-08028 Barcelona, Spain
- Institute of Nanoscience and Nanotechnology of the University of Barcelona (IN2UB), Martí i Franques 1, E-08028 Barcelona, Spain
| | - Claire Wilhelm
- Laboratory Physical Chemistry Curie (PCC), UMR168, Curie Institute and CNRS, 75005 Paris, France.
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Çetin O, Güngör B, İçhedef Ç, Parlak Y, Bilgin ES, Üstün F, Durmuş Altun G, Başpınar Y, Teksöz S. Development of a Radiolabeled Folate-Mediated Drug Delivery System for Effective Delivery of Docetaxel. ACS OMEGA 2023; 8:25316-25325. [PMID: 37483227 PMCID: PMC10357535 DOI: 10.1021/acsomega.3c02656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 06/26/2023] [Indexed: 07/25/2023]
Abstract
Many preclinical studies are carried out with the aim of developing new formulations for the effective delivery of taxane class drugs, one of the most important anticancer drugs used clinically today. In this study, a radiolabeled folate-mediated solid lipid magnetic nanoparticle (SLMNP) system was developed by loading superparamagnetic iron oxide nanoparticles (MNP) and docetaxel (DTX) into the solid lipid nanoparticles as a drug delivery system that will function both in cancer treatment and diagnosis. For this purpose, first, SLMNP was synthesized by the hot homogenization method, and the surface of the particles was modified with a folate derivative to carry the particles to tissues with folate receptors. The synthesized magnetic solid lipid nanoparticles were loaded with DTX, and then radiolabeling was carried out with technetium-99 m (99mTc-DTX-SLMNP). Structural characteristics of these nanoparticles were determined by characterization methods. According to the TEM images of MNPs, SLN, and SLMNPs, MNPs were observed between 25and 35 nm, SLNs between 400 and 500 nm, and SLMNPs between 350 and 450 nm. The drug entrapment efficiency of SLMNPs loaded with DTX was found to be 19%, and the percentage efficiency of radiolabeling was found to be 98.0 ± 2.0%. The biological behavior of this radiolabeled system was investigated in vitro and in vivo. Folate receptor-positive SKOV-3 and folate receptor-negative A549 cancer cell lines were studied. The IC50 values of DTX-SLMNP in SKOV-3 and A549 cells were 50.21 and 172.27 μM at 48 h, respectively. Gamma camera imaging studies of 99mTc-DTX-SLMNP and magnetically applied 99mTc-DTX-SLMNP compounds were performed on tumor-bearing CD-1 nude mice. The uptake in the folate receptor-positive tumor region was higher than that in the folate receptor negative tumor region. We proposed that the drug delivery system we prepared in this study be evaluated for preclinical studies of new drug carrier formulations of the taxane class of anticancer drugs.
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Affiliation(s)
- Oğuz Çetin
- Department
of Nuclear Applications, Institute of Nuclear
Sciences, Ege University, Izmir 35100, Turkey
| | - Burcu Güngör
- Department
of Nuclear Applications, Institute of Nuclear
Sciences, Ege University, Izmir 35100, Turkey
| | - Çiğdem İçhedef
- Department
of Nuclear Applications, Institute of Nuclear
Sciences, Ege University, Izmir 35100, Turkey
| | - Yasemin Parlak
- Department
of Nuclear Medicine, School of Medicine, Celal Bayar University, Manisa 45040, Turkey
| | - Elvan Sayıt Bilgin
- Department
of Nuclear Medicine, School of Medicine, Celal Bayar University, Manisa 45040, Turkey
| | - Funda Üstün
- Department
of Nuclear Medicine, Faculty of Medicine, Trakya University, Edirne 22030, Turkey
| | - Gülay Durmuş Altun
- Department
of Nuclear Medicine, Faculty of Medicine, Trakya University, Edirne 22030, Turkey
| | - Yücel Başpınar
- Department
of Pharmaceutical Biotechnology, Faculty of Pharmacy, Ege University, Izmir 35040, Turkey
| | - Serap Teksöz
- Department
of Nuclear Applications, Institute of Nuclear
Sciences, Ege University, Izmir 35100, Turkey
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6
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Zhang B, Zhu L, Pan H, Cai L. Biocompatible smart micro/nanorobots for active gastrointestinal tract drug delivery. Expert Opin Drug Deliv 2023; 20:1427-1441. [PMID: 37840310 DOI: 10.1080/17425247.2023.2270915] [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: 08/30/2023] [Accepted: 10/11/2023] [Indexed: 10/17/2023]
Abstract
INTRODUCTION Oral delivery is the most commonly used route of drug administration owing to good patient compliance. However, the gastrointestinal (GI) tract contains multiple physiological barriers that limit the absorption efficiency of conventional passive delivery systems resulting in a low drug concentration reaching the diseased sites. Micro/nanorobots can convert energy to self-propulsive force, providing a novel platform to actively overcome GI tract barriers for noninvasive drug delivery and treatment. AREAS COVERED In this review, we first describe the microenvironments and barriers in the different compartments of the GI tract. Afterward, the applications of micro/nanorobots to overcome GI tract barriers for active drug delivery are highlighted and discussed. Finally, we summarize and discuss the challenges and future prospects of micro/nanorobots for further clinical applications. EXPERT OPINION Micro/nanorobots with the ability to autonomously propel themselves and to load, transport, and release payloads on demand are ideal carriers for active oral drug delivery. Although there are many challenges to be addressed, micro/nanorobots have great potential to introduce a new era of drug delivery for precision therapy.
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Affiliation(s)
- Baozhen Zhang
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen, China
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Lizhen Zhu
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen, China
| | - Hong Pan
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen, China
| | - Lintao Cai
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen, China
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7
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A Review of Biomimetic and Biodegradable Magnetic Scaffolds for Bone Tissue Engineering and Oncology. Int J Mol Sci 2023; 24:ijms24054312. [PMID: 36901743 PMCID: PMC10001544 DOI: 10.3390/ijms24054312] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 02/14/2023] [Accepted: 02/18/2023] [Indexed: 02/25/2023] Open
Abstract
Bone defects characterized by limited regenerative properties are considered a priority in surgical practice, as they are associated with reduced quality of life and high costs. In bone tissue engineering, different types of scaffolds are used. These implants represent structures with well-established properties that play an important role as delivery vectors or cellular systems for cells, growth factors, bioactive molecules, chemical compounds, and drugs. The scaffold must provide a microenvironment with increased regenerative potential at the damage site. Magnetic nanoparticles are linked to an intrinsic magnetic field, and when they are incorporated into biomimetic scaffold structures, they can sustain osteoconduction, osteoinduction, and angiogenesis. Some studies have shown that combining ferromagnetic or superparamagnetic nanoparticles and external stimuli such as an electromagnetic field or laser light can enhance osteogenesis and angiogenesis and even lead to cancer cell death. These therapies are based on in vitro and in vivo studies and could be included in clinical trials for large bone defect regeneration and cancer treatments in the near future. We highlight the scaffolds' main attributes and focus on natural and synthetic polymeric biomaterials combined with magnetic nanoparticles and their production methods. Then, we underline the structural and morphological aspects of the magnetic scaffolds and their mechanical, thermal, and magnetic properties. Great attention is devoted to the magnetic field effects on bone cells, biocompatibility, and osteogenic impact of the polymeric scaffolds reinforced with magnetic nanoparticles. We explain the biological processes activated due to magnetic particles' presence and underline their possible toxic effects. We present some studies regarding animal tests and potential clinical applications of magnetic polymeric scaffolds.
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Krishnasamy Sekar R, Arunachalam R, Anbazhagan M, Palaniyappan S, Veeran S, Sridhar A, Ramasamy T. Accumulation, Chronicity, and Induction of Oxidative Stress Regulating Genes Through Allium cepa L. Functionalized Silver Nanoparticles in Freshwater Common Carp (Cyprinus carpio). Biol Trace Elem Res 2023; 201:904-925. [PMID: 35199287 DOI: 10.1007/s12011-022-03164-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 02/14/2022] [Indexed: 01/21/2023]
Abstract
Green evolutionary products such as biologically fabricated nanoparticles (NPs) pose a hazard to aquatic creatures. Herein, biogenic silver nanoparticles (AgNPs) were synthesized by the reaction between ionic silver (AgNO3) and aqueous onion peel extract (Allium cepa L). The synthesized biogenic AgNPs were characterized with UV-Visible spectrophotometer, XRD, FT-IR, and TEM with EDS analysis; then, their toxicity was assessed on common carp fish (Cyprinus carpio) using biomarkers of haematological alterations, oxidative stress, histological changes, differential gene expression patterns, and bioaccumulation. The 96 h lethal toxicity was analysed with various concentrations (2, 4, 6, 8, and 10 mg/l) of biogenic AgNPs. Based on 96 h LC50, sublethal concentrations (1/15th, 1/10th, and 1/5th) were given to C. carpio for 28 days. At the end of experiment, the bioaccumulations of Ag content were accumulated mainly in the gills, followed by the liver and muscle. At an interval of 7 days, the haematological alterations showed significance (p < 0.05) and elevation of antioxidant defence mechanism reveals the toxicity of biogenic synthesized AgNPs. Adverse effects on oxidative stress were probably related to the histopathological damage of its vital organs like gill, liver, and muscle. Finally, the fish treated with biogenic synthesized AgNPs were significantly (p < 0.05) downregulates the oxidative stress genes such as Cu-Zn SOD, CAT, GPx1a, GST-α, CYP1A, and Nrf-2 expression patterns. The present study provides evidence of biogenic synthesized AgNPs influence on the aquatic life through induction of oxidative stress.
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Affiliation(s)
- Rajkumar Krishnasamy Sekar
- Laboratory of Aquabiotics & Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tamil Nadu, Tiruchirappalli, 620 024, India
| | - Ramkumar Arunachalam
- UGC-National Centre for Alternatives to Animal Experiments, Bharathidasan University, Tamil Nadu, 620 024, Tiruchirappalli, India
| | - Murugadas Anbazhagan
- UGC-National Centre for Alternatives to Animal Experiments, Bharathidasan University, Tamil Nadu, 620 024, Tiruchirappalli, India
- Department of Pediatrics, School of Medicine, Emory University, GA, 30322, Atlanta, USA
| | - Sivagaami Palaniyappan
- Laboratory of Aquabiotics & Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tamil Nadu, Tiruchirappalli, 620 024, India
| | - Srinivasan Veeran
- Laboratory of Aquabiotics & Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tamil Nadu, Tiruchirappalli, 620 024, India
| | - Arun Sridhar
- Laboratory of Aquabiotics & Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tamil Nadu, Tiruchirappalli, 620 024, India
- Immunology-Vaccinology, Department of Infectious and Parasitic Diseases, Fundamental and Applied Research for Animals & Health (FARAH), Faculty of Veterinary Medicine, University of Liège, Liège, Belgium
| | - Thirumurugan Ramasamy
- Laboratory of Aquabiotics & Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tamil Nadu, Tiruchirappalli, 620 024, India.
- UGC-National Centre for Alternatives to Animal Experiments, Bharathidasan University, Tamil Nadu, 620 024, Tiruchirappalli, India.
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Nanotechnology in tissue engineering and regenerative medicine. KOREAN J CHEM ENG 2023. [DOI: 10.1007/s11814-022-1363-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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10
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Wang Y, Shen J, Handschuh-Wang S, Qiu M, Du S, Wang B. Microrobots for Targeted Delivery and Therapy in Digestive System. ACS NANO 2023; 17:27-50. [PMID: 36534488 DOI: 10.1021/acsnano.2c04716] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Untethered miniature robots enable targeted delivery and therapy deep inside the gastrointestinal tract in a minimally invasive manner. By combining actuation systems and imaging tools, significant progress has been made toward the development of functional microrobots. These robots can be actuated by external fields and fuels while featuring real-time tracking feedback toward certain regions and can perform the therapeutic process by rational exertion of the local environment of the gastrointestinal tract (e.g., pH, enzyme). Compared with conventional surgical tools, such as endoscopic devices and catheters, miniature robots feature minimally invasive diagnosis and treatment, multifunctionality, high safety and adaptivity, embodied intelligence, and easy access to tortuous and narrow lumens. In addition, the active motion of microrobots enhances local penetration and retention of drugs in tissues compared to common passive oral drug delivery. Based on the dissimilar microenvironments in the various sections of the gastrointestinal tract, this review introduces the advances of miniature robots for minimally invasive targeted delivery and therapy of diseases along the gastrointestinal tract. The imaging modalities for the tracking and their application scenarios are also discussed. We finally evaluate the challenges and barriers that retard their applications and hint on future research directions in this field.
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Affiliation(s)
- Yun Wang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen518055, P.R. China
| | - Jie Shen
- Shenzhen Key Laboratory of Spine Surgery, Department of Spine Surgery, Peking University Shenzhen Hospital, Shenzhen518036, P.R. China
| | - Stephan Handschuh-Wang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen518055, P.R. China
| | - Ming Qiu
- Department of Neurosurgery, South China Hospital of Shenzhen University, Shenzhen518111, P.R. China
| | - Shiwei Du
- Department of Neurosurgery, South China Hospital of Shenzhen University, Shenzhen518111, P.R. China
| | - Ben Wang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen518055, P.R. China
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11
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Zhao Q, Xie P, Li X, Wang Y, Zhang Y, Wang S. Magnetic mesoporous silica nanoparticles mediated redox and pH dual-responsive target drug delivery for combined magnetothermal therapy and chemotherapy. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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12
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Magnetic Nanoparticles: Current Advances in Nanomedicine, Drug Delivery and MRI. CHEMISTRY 2022. [DOI: 10.3390/chemistry4030063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Magnetic nanoparticles (MNPs) have evolved tremendously during recent years, in part due to the rapid expansion of nanotechnology and to their active magnetic core with a high surface-to-volume ratio, while their surface functionalization opened the door to a plethora of drug, gene and bioactive molecule immobilization. Taming the high reactivity of the magnetic core was achieved by various functionalization techniques, producing MNPs tailored for the diagnosis and treatment of cardiovascular or neurological disease, tumors and cancer. Superparamagnetic iron oxide nanoparticles (SPIONs) are established at the core of drug-delivery systems and could act as efficient agents for MFH (magnetic fluid hyperthermia). Depending on the functionalization molecule and intrinsic morphological features, MNPs now cover a broad scope which the current review aims to overview. Considering the exponential expansion of the field, the current review will be limited to roughly the past three years.
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13
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Liu X, Wang N, Liu X, Deng R, Kang R, Xie L. Vascular Repair by Grafting Based on Magnetic Nanoparticles. Pharmaceutics 2022; 14:pharmaceutics14071433. [PMID: 35890328 PMCID: PMC9320478 DOI: 10.3390/pharmaceutics14071433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 06/30/2022] [Accepted: 07/06/2022] [Indexed: 12/11/2022] Open
Abstract
Magnetic nanoparticles (MNPs) have attracted much attention in the past few decades because of their unique magnetic responsiveness. Especially in the diagnosis and treatment of diseases, they are mostly involved in non-invasive ways and have achieved good results. The magnetic responsiveness of MNPs is strictly controlled by the size, crystallinity, uniformity, and surface properties of the synthesized particles. In this review, we summarized the classification of MNPs and their application in vascular repair. MNPs mainly use their unique magnetic properties to participate in vascular repair, including magnetic stimulation, magnetic drive, magnetic resonance imaging, magnetic hyperthermia, magnetic assembly scaffolds, and magnetic targeted drug delivery, which can significantly affect scaffold performance, cell behavior, factor secretion, drug release, etc. Although there are still challenges in the large-scale clinical application of MNPs, its good non-invasive way to participate in vascular repair and the establishment of a continuous detection process is still the future development direction.
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Affiliation(s)
| | | | | | | | | | - Lin Xie
- Correspondence: (R.K.); (L.X.)
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14
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Pandey J, Dubey R, Kate A, Prasad B, Sinha A, Mishra MS. Nanomedicines: A Focus on Nanomaterials as Drug Delivery System with
Current Trends and Future Advancement. Drug Res (Stuttg) 2022; 72:355-366. [DOI: 10.1055/a-1824-4619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractThe rapid advancement of nanomedicine presents novel alternatives that have the
potential to transform health care. Targeted drug delivery as well as the
synthesis of nanocarriers is a growing discipline that has been intensively
researched to reduce the complexity of present medicines in a variety of
diseases and to develop new treatment and diagnostic techniques. There are
several designed nanomaterials used as a delivery system such as liposomes,
micelles, dendrimers, polymers, carbon-based materials, and many other
substances, which deliver the drug moiety directly into its targeted body area
reducing toxic effect of conventional drug delivery, thus reducing the amount of
drug required for therapeutic efficacy and offering many more advantages.
Currently, these are used in many applications, including cancer treatment,
imaging contrast agents, and biomarker detection and so on. This review provides
a comprehensive update in the field of targeted nano-based drug delivery
systems, by conducting a thorough examination of the drug synthesis, types,
targets, and application of nanomedicines in improving the therapeutic
efficiency.
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Affiliation(s)
- Jaya Pandey
- Amity School of Applied Sciences Lucknow, Amity University Uttar
Pradesh, Lucknow Campus, India
| | - Ragini Dubey
- Amity School of Applied Sciences Lucknow, Amity University Uttar
Pradesh, Lucknow Campus, India
| | - Aditya Kate
- Amity Institute of Biotechnology, Amity University, Chhattisgarh,
India
| | - Bhairav Prasad
- Department of Biotechnology, Chandigarh College of Technology, Landran,
Mohali, India
| | - Arzoo Sinha
- Amity Institute of Biotechnology, Amity University, Chhattisgarh,
India
| | - Mohit S Mishra
- Amity Institute of Biotechnology, Amity University, Chhattisgarh,
India
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Burdușel AC, Gherasim O, Andronescu E, Grumezescu AM, Ficai A. Inorganic Nanoparticles in Bone Healing Applications. Pharmaceutics 2022; 14:pharmaceutics14040770. [PMID: 35456604 PMCID: PMC9027776 DOI: 10.3390/pharmaceutics14040770] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/24/2022] [Accepted: 03/28/2022] [Indexed: 12/13/2022] Open
Abstract
Modern biomedicine aims to develop integrated solutions that use medical, biotechnological, materials science, and engineering concepts to create functional alternatives for the specific, selective, and accurate management of medical conditions. In the particular case of tissue engineering, designing a model that simulates all tissue qualities and fulfills all tissue requirements is a continuous challenge in the field of bone regeneration. The therapeutic protocols used for bone healing applications are limited by the hierarchical nature and extensive vascularization of osseous tissue, especially in large bone lesions. In this regard, nanotechnology paves the way for a new era in bone treatment, repair and regeneration, by enabling the fabrication of complex nanostructures that are similar to those found in the natural bone and which exhibit multifunctional bioactivity. This review aims to lay out the tremendous outcomes of using inorganic nanoparticles in bone healing applications, including bone repair and regeneration, and modern therapeutic strategies for bone-related pathologies.
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Affiliation(s)
- Alexandra-Cristina Burdușel
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1–7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.-C.B.); (O.G.); (A.M.G.); (A.F.)
| | - Oana Gherasim
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1–7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.-C.B.); (O.G.); (A.M.G.); (A.F.)
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 409 Atomiștilor Street, 077125 Magurele, Romania
| | - Ecaterina Andronescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1–7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.-C.B.); (O.G.); (A.M.G.); (A.F.)
- Academy of Romanian Scientists, 3 Ilfov Street, 050044 Bucharest, Romania
- Correspondence:
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1–7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.-C.B.); (O.G.); (A.M.G.); (A.F.)
- Academy of Romanian Scientists, 3 Ilfov Street, 050044 Bucharest, Romania
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 90–92 Panduri Road, 050657 Bucharest, Romania
| | - Anton Ficai
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1–7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.-C.B.); (O.G.); (A.M.G.); (A.F.)
- Academy of Romanian Scientists, 3 Ilfov Street, 050044 Bucharest, Romania
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16
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Long-Term Clearance and Biodistribution of Magnetic Nanoparticles Assessed by AC Biosusceptometry. MATERIALS 2022; 15:ma15062121. [PMID: 35329574 PMCID: PMC8948936 DOI: 10.3390/ma15062121] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/08/2021] [Accepted: 12/16/2021] [Indexed: 12/12/2022]
Abstract
Once administered in an organism, the physiological parameters of magnetic nanoparticles (MNPs) must be addressed, as well as their possible interactions and retention and elimination profiles. Alternating current biosusceptometry (ACB) is a biomagnetic detection system used to detect and quantify MNPs. The aims of this study were to evaluate the biodistribution and clearance of MNPs profiles through long-time in vivo analysis and determine the elimination time carried out by the association between the ACB system and MnFe2O4 nanoparticles. The liver, lung, spleen, kidneys, and heart and a blood sample were collected for biodistribution analysis and, for elimination analysis, and over 60 days. During the period analyzed, the animal’s feces were also collectedd. It was possible to notice a higher uptake by the liver and the spleen due to their characteristics of retention and uptake. In 60 days, we observed an absence of MNPs in the spleen and a significant decay in the liver. We also determined the MNPs’ half-life through the liver and the spleen elimination. The data indicated a concentration decay profile over the 60 days, which suggests that, in addition to elimination via feces, there is an endogenous mechanism of metabolization or possible agglomeration of MNPs, resulting in loss of ACB signal intensity.
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17
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Dasari A, Xue J, Deb S. Magnetic Nanoparticles in Bone Tissue Engineering. NANOMATERIALS 2022; 12:nano12050757. [PMID: 35269245 PMCID: PMC8911835 DOI: 10.3390/nano12050757] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 02/18/2022] [Accepted: 02/19/2022] [Indexed: 12/25/2022]
Abstract
Large bone defects with limited intrinsic regenerative potential represent a major surgical challenge and are associated with a high socio-economic burden and severe reduction in the quality of life. Tissue engineering approaches offer the possibility to induce new functional bone regeneration, with the biomimetic scaffold serving as a bridge to create a microenvironment that enables a regenerative niche at the site of damage. Magnetic nanoparticles have emerged as a potential tool in bone tissue engineering that leverages the inherent magnetism of magnetic nano particles in cellular microenvironments providing direction in enhancing the osteoinductive, osteoconductive and angiogenic properties in the design of scaffolds. There are conflicting opinions and reports on the role of MNPs on these scaffolds, such as the true role of magnetism, the application of external magnetic fields in combination with MNPs, remote delivery of biomechanical stimuli in-vivo and magnetically controlled cell retention or bioactive agent delivery in promoting osteogenesis and angiogenesis. In this review, we focus on the role of magnetic nanoparticles for bone-tissue-engineering applications in both disease modelling and treatment of injuries and disease. We highlight the materials-design pathway from implementation strategy through the selection of materials and fabrication methods to evaluation. We discuss the advances in this field and unmet needs, current challenges in the development of ideal materials for bone-tissue regeneration and emerging strategies in the field.
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Affiliation(s)
- Akshith Dasari
- Faculty of Dentistry, Oral & Craniofacial Sciences, King’s College London, Floor 17 Tower Wing, Guy’s Hospital, London Bridge, London SE19RT, UK; (A.D.); (J.X.)
- Faculty of Life Sciences & Medicine, King’s College London, Guy’s Campus, London SE11UL, UK
| | - Jingyi Xue
- Faculty of Dentistry, Oral & Craniofacial Sciences, King’s College London, Floor 17 Tower Wing, Guy’s Hospital, London Bridge, London SE19RT, UK; (A.D.); (J.X.)
| | - Sanjukta Deb
- Faculty of Dentistry, Oral & Craniofacial Sciences, King’s College London, Floor 17 Tower Wing, Guy’s Hospital, London Bridge, London SE19RT, UK; (A.D.); (J.X.)
- Correspondence:
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18
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Del Sol-Fernández S, Martínez-Vicente P, Gomollón-Zueco P, Castro-Hinojosa C, Gutiérrez L, Fratila RM, Moros M. Magnetogenetics: remote activation of cellular functions triggered by magnetic switches. NANOSCALE 2022; 14:2091-2118. [PMID: 35103278 PMCID: PMC8830762 DOI: 10.1039/d1nr06303k] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 11/13/2021] [Indexed: 05/03/2023]
Abstract
During the last decade, the possibility to remotely control intracellular pathways using physical tools has opened the way to novel and exciting applications, both in basic research and clinical applications. Indeed, the use of physical and non-invasive stimuli such as light, electricity or magnetic fields offers the possibility of manipulating biological processes with spatial and temporal resolution in a remote fashion. The use of magnetic fields is especially appealing for in vivo applications because they can penetrate deep into tissues, as opposed to light. In combination with magnetic actuators they are emerging as a new instrument to precisely manipulate biological functions. This approach, coined as magnetogenetics, provides an exclusive tool to study how cells transform mechanical stimuli into biochemical signalling and offers the possibility of activating intracellular pathways connected to temperature-sensitive proteins. In this review we provide a critical overview of the recent developments in the field of magnetogenetics. We discuss general topics regarding the three main components for magnetic field-based actuation: the magnetic fields, the magnetic actuators and the cellular targets. We first introduce the main approaches in which the magnetic field can be used to manipulate the magnetic actuators, together with the most commonly used magnetic field configurations and the physicochemical parameters that can critically influence the magnetic properties of the actuators. Thereafter, we discuss relevant examples of magneto-mechanical and magneto-thermal stimulation, used to control stem cell fate, to activate neuronal functions, or to stimulate apoptotic pathways, among others. Finally, although magnetogenetics has raised high expectations from the research community, to date there are still many obstacles to be overcome in order for it to become a real alternative to optogenetics for instance. We discuss some controversial aspects related to the insufficient elucidation of the mechanisms of action of some magnetogenetics constructs and approaches, providing our opinion on important challenges in the field and possible directions for the upcoming years.
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Affiliation(s)
- Susel Del Sol-Fernández
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
| | - Pablo Martínez-Vicente
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
| | - Pilar Gomollón-Zueco
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
| | - Christian Castro-Hinojosa
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
| | - Lucía Gutiérrez
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
- Departamento de Química Analítica, Universidad de Zaragoza, Zaragoza 50009, Spain
| | - Raluca M Fratila
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
- Departamento de Química Orgánica, Universidad de Zaragoza, C/Pedro Cerbuna 12, Zaragoza 50009, Spain
| | - María Moros
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
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Oehlsen O, Cervantes-Ramírez SI, Cervantes-Avilés P, Medina-Velo IA. Approaches on Ferrofluid Synthesis and Applications: Current Status and Future Perspectives. ACS OMEGA 2022; 7:3134-3150. [PMID: 35128226 PMCID: PMC8811916 DOI: 10.1021/acsomega.1c05631] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 01/06/2022] [Indexed: 05/14/2023]
Abstract
Ferrofluids are colloidal suspensions of iron oxide nanoparticles (IONPs) within aqueous or nonaqueous liquids that exhibit strong magnetic properties. These magnetic properties allow ferrofluids to be manipulated and controlled when exposed to magnetic fields. This review aims to provide the current scope and research opportunities regarding the methods of synthesis of nanoparticles, surfactants, and carrier liquids for ferrofluid production, along with the rheology and applications of ferrofluids within the fields of medicine, water treatment, and mechanical engineering. A ferrofluid is composed of IONPs, a surfactant that coats the magnetic IONPs to prevent agglomeration, and a carrier liquid that suspends the IONPs. Coprecipitation and thermal decomposition are the main methods used for the synthesis of IONPs. Despite the fact that thermal decomposition provides precise control on the nanoparticle size, coprecipitation is the most used method, even when the oxidation of iron can occur. This oxidation alters the ratio of maghemite/magnetite, influencing the magnetic properties of ferrofluids. Strategies to overcome iron oxidation have been proposed, such as the use of an inert atmosphere, adjusting the Fe(II) and Fe(III) ratio to 1:2, and the exploration of other metals with the oxidation state +2. Surfactants and carrier liquids are chosen according to the ferrofluid application to ensure stability. Hence, a compatible carrier liquid (polar or nonpolar) is selected, and then, a surfactant, mainly a polymer, is embedded in the IONPs, providing a steric barrier. Due to the variety of surfactants and carrier liquids, the rheological properties of ferrofluids are an important response variable evaluated when synthesizing ferrofluids. There are many reported applications of ferrofluids, including biosensing, medical imaging, medicinal therapy, magnetic nanoemulsions, and magnetic impedance. Other applications include water treatment, energy harvesting and transfer, and vibration control. To progress from synthesis to applications, research is still ongoing to ensure control of the ferrofluids' properties.
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Affiliation(s)
- Oscar Oehlsen
- Department
of Natural Sciences, Western New Mexico
University, 1000 W College Avenue, Silver City, New Mexico 88062, United States
| | - Sussy I. Cervantes-Ramírez
- Escuela
de Ingeniería y Ciencias, Reserva Territorial Atlixcáyotl, Tecnologico de Monterrey, Puebla, Pue 72453, Mexico
| | - Pabel Cervantes-Avilés
- Escuela
de Ingeniería y Ciencias, Reserva Territorial Atlixcáyotl, Tecnologico de Monterrey, Puebla, Pue 72453, Mexico
- . Phone: +52 202-303-2000
| | - Illya A. Medina-Velo
- Department
of Natural Sciences, Western New Mexico
University, 1000 W College Avenue, Silver City, New Mexico 88062, United States
- Department
of Chemistry, Mathematics, and Physics, Houston Baptist University, 7502 Fondren Road, Houston, Texas 77074, United States
- . Phone: +1 281-649-3459
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20
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A Ferrofluid with High Specific Absorption Rate Prepared in a Single Step Using a Biopolymer. MATERIALS 2022; 15:ma15030788. [PMID: 35160734 PMCID: PMC8836388 DOI: 10.3390/ma15030788] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/13/2022] [Accepted: 01/18/2022] [Indexed: 02/04/2023]
Abstract
An exhaustive characterization of the physicochemical properties of gum arabic (GA)-coated Fe3O4 magnetic nanoparticles was conducted in this work. These nanoparticles were obtained via the in-situ coprecipitation method (a fast single-step method) in two GA:Fe ratios, 10:1 and 20:1, respectively. Several experimental techniques were applied in the characterization process, all of them described below. Using Transmission Electron Microcopy images, they were shown to have spherical-like morphology with 11 nm diameter. The Fourier Transform Infrared spectra confirmed the attachment of the GA on the surface of the magnetic nanoparticles (MNPs), providing good colloidal stability from pH 7 to 8. The thickness of the coatings (1.7 nm and 1.1 nm) was determined using thermogravimetric measurements. A high specific absorption rate and superparamagnetic properties were determined using alternant and static magnetic fields, respectively. The GA-coated MNPs were non-cytotoxic, according to tests on HT-29 human intestine cells. Additionally, HT-29 cells were exposed to magnetic fluid hyperthermia at 530 kHz, and the induction of cell death by the magnetic field, due to the heating of GA-coated MNP, was observed.
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