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Kumari A, Singh B. Functionalization of sterculia gum for making platform hydrogels via network formation for use in drug delivery. Int J Biol Macromol 2024; 264:130814. [PMID: 38479664 DOI: 10.1016/j.ijbiomac.2024.130814] [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: 12/20/2023] [Revised: 03/09/2024] [Accepted: 03/10/2024] [Indexed: 03/17/2024]
Abstract
Recently, various advancements have been made in the development of functional polymeric materials for innovative applications. Herein this work, functionalization of sterculia gum (SG) was carried out via grafting of poly(2-(methacryloyloxy) ethyltrimethylammonium chloride) (METAC)-polyvinyl pyrrolidone (PVP) to develop hydrogel dressings as a platform for use in drug delivery (DD). The innovation of the present work is the exploration of inherent antioxidant and antimicrobial properties of the SG along with antimicrobial characteristic of poly(METAC) and PVP, to design the doxycycline encapsulated hydrogel dressings for better wound healing. FESEM, EDS and AFM analyzed the surface morphology of hydrogels. FTIR, 13C NMR and XRD inferred inclusion of poly(METAC)-PVP into polymers. 13C NMR confirmed the incorporation of poly(METAC) and PVP onto gum by the presence of a peak at 54.74 ppm because of methyl carbon attached to quaternary nitrogen of poly(METAC) and at 45.48 ppm due to the ring carbon of PVP along with FTIR peak at 949 cm-1 because of CN bending of quaternary nitrogen of poy (METAC). Thermal characterization of copolymers has been performed using TGA analysis. One gram of copolymeric hydrogel dressing absorbed 6.51 ± 0.03 g simulated salivary fluid (SSF) and 7.65 ± 0.03 g simulated wound fluid (SWF). Release of doxycycline drug occurred in a sustained manner and followed the Non-Fickian diffusion mechanism from hydrogels. The release profile was most effectively described by Hixon-Crowell kinetic model. Hydrogel demonstrated biocompatibility and expressed thrombogenicity 79.7 ± 4.9 % during its polymer-blood interactions. Copolymer revealed mucoadhesive property, requiring a force of 77.00 ± 0.01 mN to detach from bio-membrane. Additionally, it exhibited antioxidant features, showing 43.81 ± 0.286 % free radical scavenging. Hydrogel dressings were mechanically stable and revealed 0.76 ± 0.09 N mm-2 tensile strength and 9.18 ± 0.01 N burst strength. Polymer films were permeable to oxygen and water vapor and were impermeable to microorganisms. Hydrogel dressings exhibited antimicrobial properties against Pseudomonas aeruginosa and Staphylococcus aureus bacteria. Overall, these properties displayed the suitability of hydrogels for wound dressing (WD) applications which may actively enhance wound healing.
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Affiliation(s)
- Ankita Kumari
- Department of Chemistry, Himachal Pradesh University, Shimla-171005, India
| | - Baljit Singh
- Department of Chemistry, Himachal Pradesh University, Shimla-171005, India.
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2
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Dhote NS, Patel RD, Kuwar U, Agrawal M, Alexander A, Jain P, Ajazuddin. Application of Thermoresponsive Smart Polymers based in situ Gel as a Novel Carrier for Tumor Targeting. Curr Cancer Drug Targets 2024; 24:375-396. [PMID: 37534485 DOI: 10.2174/1568009623666230803111718] [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: 03/07/2023] [Revised: 05/12/2023] [Accepted: 06/08/2023] [Indexed: 08/04/2023]
Abstract
The temperature-triggered in situ gelling system has been revolutionized by introducing an intelligent polymeric system. Temperature-triggered polymer solutions are initially in a sol state and then undergo a phase transition to form a gel at body temperature due to various parameters like pH, temperature, and so on. These smart polymers offer a number of advantages, including ease of administration, long duration of release of the drug, low administration frequency with good patient compliance, and targeted drug delivery with fewer adverse effects. Polymers such as poly(N-isopropylacrylamide) (PNIPAAm), polyethylene glycol (PEG), poly (N, N'-diethyl acrylamide), and polyoxypropylene (PPO) have been briefly discussed. In addition to various novel Drug Delivery Systems (DDS), the smart temperature-triggered polymeric system has various applications in cancer therapy and many other disease conditions. This review focuses on the principals involved in situ gelling systems using various temperature-triggered polymers for chemotherapeutic purposes, using smart DDS, and their advanced application in cancer therapy, as well as available marketed formulations and recent advances in these thermoresponsive sol-gel transforming systems.
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Affiliation(s)
- Nidhi Sudhir Dhote
- Department of Pharmaceutics, School of Pharmacy & Technology Management, Narsee Monjee Institute of Management Studies (NMIMS), Shirpur, 425 405, Maharashtra, India
| | - Rajat Dineshbhai Patel
- Department of Pharmaceutics, School of Pharmacy & Technology Management, Narsee Monjee Institute of Management Studies (NMIMS), Shirpur, 425 405, Maharashtra, India
| | - Utkarsha Kuwar
- Department of Pharmaceutics, School of Pharmacy & Technology Management, Narsee Monjee Institute of Management Studies (NMIMS), Shirpur, 425 405, Maharashtra, India
| | - Mukta Agrawal
- Department of Pharmaceutics, School of Pharmacy & Technology Management, SVKM's Narsee Monjee Institute of Management Studies (NMIMS), Hyderabad, 509 301, Telangana, India
| | - Amit Alexander
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Assam, 781101, India
| | - Parag Jain
- Rungta College of Pharmaceutical Sciences and Research, Kohka-Kurud Road, Bhilai, Chhattisgarh, 490024, India
| | - Ajazuddin
- Rungta College of Pharmaceutical Sciences and Research, Kohka-Kurud Road, Bhilai, Chhattisgarh, 490024, India
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Parvaneh S, Pourmadadi M, Abdous M, Pourmousavi SA, Yazdian F, Rahdar A, Diez-Pascual AM. Carboxymethyl cellulose/starch/reduced graphene oxide composite as a pH-sensitive nanocarrier for curcumin drug delivery. Int J Biol Macromol 2023; 241:124566. [PMID: 37100314 DOI: 10.1016/j.ijbiomac.2023.124566] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 04/11/2023] [Accepted: 04/19/2023] [Indexed: 04/28/2023]
Abstract
Nanocomposites are promising drug carriers to treat terminal cancers with few adverse effects. Herein, nanocomposite hydrogels composed of carboxymethyl cellulose (CMC)/starch/reduced graphene oxide (RGO) were synthesized via a green chemistry approach and then encapsulated in double nanoemulsions to act as pH-responsive delivery systems for curcumin, a potential antitumor drug. A water/oil/water nanoemulsion containing bitter almond oil served as a membrane surrounding the nanocarrier to control drug release. DLS and zeta potential measurements were used to estimate the size and confirm the stability of curcumin-loaded nanocarriers. The intermolecular interactions, crystalline structure and morphology of the nanocarriers were analyzed through FTIR spectroscopy, XRD and FESEM, respectively. The drug loading and entrapment efficiencies were significantly improved compared to previously reported curcumin delivery systems. In vitro release experiments demonstrated the pH-responsiveness of the nanocarriers and the faster curcumin release at a lower pH. The MTT assay revealed the increased toxicity of the nanocomposites against MCF-7 cancer cells compared to CMC, CMC/RGO or free curcumin. Apoptosis was detected in MCF-7 cells via flow cytometry tests. The results obtained herein support that the developed nanocarriers are stable, uniform and effective delivery systems for a sustained and pH-sensitive curcumin release.
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Affiliation(s)
| | - Mehrab Pourmadadi
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Majid Abdous
- Department of Chemistry, Amirkabir University of Technology, Tehran, Iran.
| | | | - Fatemeh Yazdian
- Department of Life Science Engineering, Faculty of New Science and Technologies, University of Tehran, Tehran, Iran.
| | - Abbas Rahdar
- Department of Physics, Faculty of Sciences, University of Zabol, Zabol 538-98615, Iran.
| | - Ana M Diez-Pascual
- Universidad de Alcalá, Facultad de Ciencias, Departamento de Química Analítica, Química Física e Ingeniería Química, Ctra. Madrid-Barcelona, Km. 33.6, 28805 Alcalá de Henares, Madrid, Spain.
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4
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Slavkova M, Tzankov B, Popova T, Voycheva C. Gel Formulations for Topical Treatment of Skin Cancer: A Review. Gels 2023; 9:gels9050352. [PMID: 37232944 DOI: 10.3390/gels9050352] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/18/2023] [Accepted: 04/20/2023] [Indexed: 05/27/2023] Open
Abstract
Skin cancer, with all its variations, is the most common type of cancer worldwide. Chemotherapy by topical application is an attractive strategy because of the ease of application and non-invasiveness. At the same time, the delivery of antineoplastic agents through the skin is difficult because of their challenging physicochemical properties (solubility, ionization, molecular weight, melting point) and the barrier function of the stratum corneum. Various approaches have been applied in order to improve drug penetration, retention, and efficacy. This systematic review aims at identifying the most commonly used techniques for topical drug delivery by means of gel-based topical formulations in skin cancer treatment. The excipients used, the preparation approaches, and the methods characterizing gels are discussed in brief. The safety aspects are also highlighted. The combinatorial formulation of nanocarrier-loaded gels is also reviewed from the perspective of improving drug delivery characteristics. Some limitations and drawbacks in the identified strategies are also outlined and considered within the future scope of topical chemotherapy.
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Affiliation(s)
- Marta Slavkova
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria
| | - Borislav Tzankov
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria
| | - Teodora Popova
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria
| | - Christina Voycheva
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria
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Huang H, Zhang X, Dong Z, Zhao X, Guo B. Nanocomposite conductive tough hydrogel based on metal coordination reinforced covalent Pluronic F-127 micelle network for human motion sensing. J Colloid Interface Sci 2022; 625:817-830. [PMID: 35772209 DOI: 10.1016/j.jcis.2022.06.058] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 05/25/2022] [Accepted: 06/13/2022] [Indexed: 01/06/2023]
Abstract
The design of conductive hydrogels integrating anti-fatigue, high sensitivity, strong mechanical property and good sterilization performance remains a challenge. We innovatively introduced metal coordination in covalently crosslinked Pluronic F-127 micelle network and synthesized nanocomposite conductive tough hydrogel through the combination of covalent crosslinking, metal coordination and silver nanowire reinforcement. Compared with pure diacylated PF127 hydrogel (PF127), the tensile strength of PF-AA-AM-Al3+/Ag0.25 hydrogel reaching 1.4 MPa was about 10 times than that of PF127. The toughness of PF-AA-AM-Al3+/Ag0.25 reaches 1.88 MJ/m3. Compared with PF-AA-AM-Al3+, the introduction of silver nanowires increased the fatigue life of PF-AA-AM-Al3+/Ag0.25 by 200% (31837 cycles), 170% (12804 cycles) and 1022% (511 cycles) under 100%, 120% and 150% ultimate tensile strains, respectively. Besides, the PF-AA-AM-Al3+/Ag0.25 showed strain sensitivity to small deformation (Gauge factor = 2.42) in wearable tests on hands and knees. In addition, the PF-AA-AM-Al3+/Ag0.25 had good cytocompatibility and antibacterial performance that bacteria killing ratio of 98% to S. aureus and 99% to E. coli. Finally, a viscoelastic numerical constitutive model was established based on finite element method to study the damage failure history of the material. Comparative analysis showed that local stress concentration was the main factor leading to the failure of hydrogel.
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Affiliation(s)
- Heyuan Huang
- School of Aeronautics, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China; Aircraft Strength Research Institute, Aviation Industries of China, Xi'an, 710072, China
| | - Xuanjia Zhang
- School of Aeronautics, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
| | - Zhicheng Dong
- School of Aeronautics, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
| | - Xin Zhao
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Baolin Guo
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China; Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710049, China.
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6
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Cordero M, Ruiz C, Palacio DA, Turunen P, Rowan A, Urbano BF. Effect of low aspect ratio one-dimensional nanoparticles on properties of photocrosslinked alginate nanocomposite hydrogels. Int J Biol Macromol 2022; 204:635-643. [PMID: 35176322 DOI: 10.1016/j.ijbiomac.2022.02.059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 02/03/2022] [Accepted: 02/11/2022] [Indexed: 01/07/2023]
Abstract
One-dimensional nanoparticles such as fibers, wires, represent an exciting type of filler for obtaining nanocomposite hydrogels due to their high aspect ratio. Unlike continuous fibers, in composites with short fibers, stress transfer occurs not only at the cylindrical surface of the fiber but also at the fiber ends. This work aimed to study the influence of the length of low aspect ratio one-dimensional nanoparticles on the rheological, swelling and thermal properties of nanocomposite hydrogels. We synthesized nanocomposite hydrogels via photopolymerization of methacrylated alginate macromonomers and aluminum oxide nanoparticles, nanowires and nanofibers as fillers. The main difference between the nanoparticles lies in their length. Longer nanoparticles (nanofibers) provided a glassier structure and a more significant reinforcement to the hydrogel, for example, at the concentration of 0.5 wt% the complex modulus increased approximately 2-fold and 8-fold for nanowires and nanofibers, respectively. Similarly, the incorporation of nanofibers produced hydrogels with a lower swelling capacity (2.5-fold decrease), which was attributed to a more connected network structure due to the higher aspect ratio of the nanofibers. Finally, both nanoparticle types produced an increase in the activation energy of thermal degradation.
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Affiliation(s)
- Matías Cordero
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile
| | - Carla Ruiz
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile
| | - Daniel A Palacio
- Departamento de Química Analítica e Inorgánica, Facultad de Ciencias Químicas, Universidad de Concepción, Chile
| | - Petri Turunen
- Microscopy Core Facility, Institute of Molecular Biology, Mainz, Germany
| | - Alan Rowan
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Australia
| | - Bruno F Urbano
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile.
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Baljit Singh, Man Mohan. Synthesis and Characterization of Arabinoxylan Psyllium Mucilage-2-methacryloyloxyethyl Trimethylammonium Chloride Copolymeric Hydrogel by Gamma Radiation for Use in Drug Delivery Applications. POLYMER SCIENCE SERIES B 2022. [DOI: 10.1134/s1560090422010079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Li S, Mu B, Yan P, Kang Y, Wang Q, Wang A. Incorporation of Different Metal Ion for Tuning Color and Enhancing Antioxidant Activity of Curcumin/Palygorskite Hybrid Materials. Front Chem 2021; 9:760941. [PMID: 34966719 PMCID: PMC8711651 DOI: 10.3389/fchem.2021.760941] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 11/08/2021] [Indexed: 11/19/2022] Open
Abstract
Curcumin is one of the dietary dyes extracted from turmeric and used for prevention and treatment of various illnesses. However, the low bioavailability and poor stability of curcumin limits its relevant applications. Therefore, different metal ions including Cu2+, Zn2+, Mg2+, Al3+, or Fe3+ were incorporated to tune the color, enhance the environmental stability and antioxidant activity of curcumin in the presence of palygorskite in this study. The as-prepared samples were studied using X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, Zeta potential, and transmission electron microscopy. In addition, the density functional theory calculation was also performed to explore the possible interaction among metal ions, curcumin and palygorskite. It was found that the color changing and stability enhancing were ascribed to the curcumin-metal ions coordination as well as chemical interactions between curcumin-metal complex and palygorskite. Moreover, the as-prepared composites showed more excellent color, thermal stability, antioxidant activity, and fluorescence properties than that of the curcumin/palygorskite composites due to the presence of metal ions. The finding of this investigation may contribute to developing the multifunctional composites with different colors and good antioxidant activity for relevant applications based on curcumin and palygorskite.
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Affiliation(s)
- Shue Li
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Bin Mu
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Penji Yan
- Key Laboratory of Hexi Corridor Resources Utilization of Gansu Universities, College of Chemistry and Chemical Engineering, Hexi University, Zhangye, China
| | - Yuru Kang
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Qin Wang
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Aiqin Wang
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China
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Salama A, Abouzeid RE, Owda ME, Cruz-Maya I, Guarino V. Cellulose-Silver Composites Materials: Preparation and Applications. Biomolecules 2021; 11:1684. [PMID: 34827681 PMCID: PMC8615592 DOI: 10.3390/biom11111684] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/04/2021] [Accepted: 11/07/2021] [Indexed: 01/05/2023] Open
Abstract
Cellulose has received great attention owing to its distinctive structural features, exciting physico-chemical properties, and varied applications. The combination of cellulose and silver nanoparticles currently allows to fabricate different promising functional nanocomposites with unique properties. The current work offers a wide and accurate overview of the preparation methods of cellulose-silver nanocomposite materials, also providing a punctual discussion of their potential applications in different fields (i.e., wound dressing, high-performance textiles, electronics, catalysis, sensing, antimicrobial filtering, and packaging). In particular, different preparation methods of cellulose/silver nanocomposites based on in situ thermal reduction, blending and dip-coating, or additive manufacturing techniques were thoroughly described. Hence, the correlations among the structure and physico-chemical properties in cellulose/silver nanocomposites were investigated in order to better control the final properties of the nanocomposites and analyze the key points and limitations of the current manufacturing approaches.
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Affiliation(s)
- Ahmed Salama
- Cellulose and Paper Department, National Research Centre, 33 El-Bohouth St., Dokki, Giza 12622, Egypt;
| | - Ragab E. Abouzeid
- Cellulose and Paper Department, National Research Centre, 33 El-Bohouth St., Dokki, Giza 12622, Egypt;
| | - Medhat E. Owda
- Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt;
| | - Iriczalli Cruz-Maya
- Institute of Polymers, Composite and Biomaterials, National Research Council of Italy, Mostra D’Oltremare, Pad 20, V. J.F. Kennedy 54, 80125 Naples, Italy;
| | - Vincenzo Guarino
- Institute of Polymers, Composite and Biomaterials, National Research Council of Italy, Mostra D’Oltremare, Pad 20, V. J.F. Kennedy 54, 80125 Naples, Italy;
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Li Y, Wang WX. Uptake, intracellular dissolution, and cytotoxicity of silver nanowires in cell models. CHEMOSPHERE 2021; 281:130762. [PMID: 34020191 DOI: 10.1016/j.chemosphere.2021.130762] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/23/2021] [Accepted: 04/24/2021] [Indexed: 06/12/2023]
Abstract
The uptake, intracellular dissolution, and cytotoxicity of silver nanowires (AgNWs) in two cell models (human keratinocytes - HaCaT cells and murine macrophages) were systemically investigated for the first time. Cellular uptake of AgNWs occurred mainly via pathways of clathrin-dependent endocytosis, caveolae-dependent endocytosis, and phagocytosis. AgNWs could be internalized by two types of cells with numerous lysosomal vesicles detected in close vicinity to AgNWs. Meanwhile, AgNWs exposure caused lysosomal permeabilization and release of cathepsisn B into cytoplasm. Furthermore, for the first time, this study found that AgNWs exposure inhibited the transmembrane ATP binding cassette (ABC) efflux transporter activity, which could make AgNWs as chemosensitizers to increase the toxicity of other xenobiotic pollutants. Toxicity assays evaluating reactive oxygen species production and mitochondrial activity indicated that cytotoxicity differed for different cell types and particles. The intracellular presence of AgNWs with different diameters induced similar toxic events but to different extents. AgNWs were absorbed by macrophages more efficiently than HaCaT cells, while AgNWs exhibited only marginal cytotoxicity towards macrophages compared to HaCaT cells. Using an Ag+ fluorescence probe, it was found that a fraction of AgNWs was dissolved inside the lysosomes. A higher amount of released Ag+ was detected in HaCaT cells than in macrophages, which might partially contribute to their higher cytotoxicity in HaCaT cells. The toxicity of AgNWs in HaCaT cells and macrophages is due to the high-aspect nature of the nanowires rather than the extracellular release of Ag+. This study may be useful for risk assessments of AgNWs in their practical applications in the biomedical field.
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Affiliation(s)
- Yiling Li
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
| | - Wen-Xiong Wang
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China.
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Du W, Zong Q, Guo R, Ling G, Zhang P. Injectable Nanocomposite Hydrogels for Cancer Therapy. Macromol Biosci 2021; 21:e2100186. [PMID: 34355522 DOI: 10.1002/mabi.202100186] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 06/22/2021] [Indexed: 01/02/2023]
Abstract
Hydrogel is a kind of 3D polymer network with strong swelling ability in water and appropriate mechanical and biological properties, which make it feasible to maintain bioactive substances and has promising applications in the fields of biomaterials, soft machines, and artificial tissues. Unfortunately, traditional hydrogels prepared by chemical crosslinking have poor mechanical properties and limited functions, which limit their further application. In recent years, with the continuous development of nanoparticle research, more and more studies have combined nanoparticles with hydrogels to make up for the shortcomings of traditional hydrogels. In this article, the types and functions of hydrogels and nanomaterials are introduced first, as well as the functions and applications of injectable nanocomposite hydrogels (INHs), then the latest progress of INHs for cancer treatment is reviewed, some existing problems are summarized, and the application prospect of NHs is prospected.
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Affiliation(s)
- Wenzhen Du
- Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Qida Zong
- Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Ranran Guo
- Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Guixia Ling
- Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Peng Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
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Kundu M, Majumder R, Das CK, Mandal M. Natural products based nanoformulations for cancer treatment: Current evolution in Indian research. Biomed Mater 2021; 16. [PMID: 33621207 DOI: 10.1088/1748-605x/abe8f2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 02/23/2021] [Indexed: 12/17/2022]
Abstract
The use of medicinal plants is as ancient as human civilization. The development of phytochemistry and pharmacology facilitates the identification of natural bioactive compounds and their mechanisms of action, including against cancer. The efficacy and the safety of a bioactive compound depend on its optimal delivery to the target site. Most natural bioactive compounds (phenols, flavonoids, tannins, etc.) are unable to reach their target sites due to their low water solubility, less cellular absorption, and high molecular weight, leading to their failure into clinical translation. Therefore, many scientific studies are going on to overcome the drawbacks of natural products for clinical applications. Several studies in India, as well as worldwide, have proposed the development of natural products-based nanoformulations to increase their efficacy and safety profile for cancer therapy by improving the delivery of natural bioactive compounds to their target site. Therefore, we are trying to discuss the development of natural products-based nanoformulations in India to improve the efficacy and safety of natural bioactive compounds against cancer.
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Affiliation(s)
- Moumita Kundu
- Indian Institute of Technology Kharagpur, Cancer biology lab, Kharagpur, West Bengal, 721302, INDIA
| | - Ranabir Majumder
- Indian Institute of Technology Kharagpur, Cancer biology lab, Kharagpur, West Bengal, 721302, INDIA
| | - Chandan Kanta Das
- Indian Institute of Technology Kharagpur, Cancer biology lab, Kharagpur, West Bengal, 721302, INDIA
| | - Mahitosh Mandal
- SMST, Indian Institute of Technology Kharagpur, Cancer biology lab, Kharagpur, 721302, INDIA
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Yin J, Han Q, Zhang J, Liu Y, Gan X, Xie K, Xie L, Deng Y. MXene-Based Hydrogels Endow Polyetheretherketone with Effective Osteogenicity and Combined Treatment of Osteosarcoma and Bacterial Infection. ACS APPLIED MATERIALS & INTERFACES 2020; 12:45891-45903. [PMID: 33012164 DOI: 10.1021/acsami.0c14752] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
After an osteosarcoma resection, the risks of cancer recurrence, postoperative infection, and large bone loss still threaten patients' health. Conventional treatment relies on implanting orthopedic materials to fill bone defects after surgery, but it has no ability of destroying residual tumor cells and preventing bacterial invasion. To tackle this challenge, here, we develop a novel multifunctional implant (SP@MX/GelMA) that mainly consists of MXene nanosheets, gelatin methacrylate (GelMA) hydrogels, and bioinert sulfonated polyetheretherketone (SP) with the purpose of facilitating tumor cell death, combating pathogenic bacteria, and promoting osteogenicity. Because of the synergistic photothermal effects of MXene and polydopamine (pDA), osteosarcoma cells are effectively killed on the multifunctional coatings under 808 nm near-infrared (NIR) irradiation through thermal ablation. After loading tobramycin (TOB), the SP@MX-TOB/GelMA implants display robust antibacterial properties against Gram-negative/Gram-positive bacteria. More importantly, the multifunctional implants are demonstrated to have superior cytocompatibility and osteogenesis-promoting capability in terms of cell replication, spreading, alkaline phosphatase activity, calcium matrix mineralization, and in vivo osseointegration. Accordingly, such photothermally controlled multifunctional implants not only defeat osteosarcoma cells and bacteria but also intensify osteogenicity, which hold a greatly promising countermeasure for curing postoperative tissue lesion from an osteosarcoma excision.
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Affiliation(s)
- Jie Yin
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Qiuyang Han
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Junchuan Zhang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Yunxiu Liu
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Xueqi Gan
- State Key Laboratory of Oral Diseases, West China College of Stomatology, Sichuan University, Chengdu 610041, China
| | - Kenan Xie
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Lu Xie
- State Key Laboratory of Oral Diseases, West China College of Stomatology, Sichuan University, Chengdu 610041, China
| | - Yi Deng
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
- Department of Mechanical Engineering, The University of Hong Kong, Pok Fu Lam, Hong Kong SAR, China
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14
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Konan KV, Le TC, Mateescu MA. Antiplasmodial Combined Formulation of Artemisinin with Peschiera fuchsiaefolia Bis-Indole Alkaloids. J Pharm Sci 2020; 110:135-145. [PMID: 32987093 DOI: 10.1016/j.xphs.2020.09.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 08/19/2020] [Accepted: 09/22/2020] [Indexed: 11/28/2022]
Abstract
Antimalarial agents used as monotherapy are increasingly ineffective due to the emergence of Plasmodium resistant strains. Artemisinin (Arte), extracted from Artemisia annua, presents a good efficiency against the Plasmodium strains and is currently used to treat malaria. To avoid the appearance of new resistant strains to artemisinin, the use of Artemisinin-based Combination Therapy (ACT) with another antimalaria agent was recommended by WHO to provide an effective cure and delayed resistance. Although combined formulations of various drugs with Artemisinin have been developed, their release is immediate, and they require multiple doses with side detrimental effects and effectiveness still desired. To improve its efficiency, controlled release formulations were developed to ensure long-term antiplasmodial activity by associating Artemisinin with a natural antimalarial agent extracted from Peschiera fuchsiaefolia (Pf). The Pf extract (containing mostly low soluble alkaloids) was complexed with carboxymethylcellulose to improve its solubility and stability. Two formulation types are reported. As bilayer tablet dosage form, the kinetic release pattern was an immediate release of Artemisinin, followed by a slow sustained release of Pf for 12 h. As monolithic tablet, the release profile shows a simultaneous sustained release of the two active agents, about of 10 h for Arte and 12 h for Pf.
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Affiliation(s)
- Kouadio Victorien Konan
- Department of Chemistry, Research Chair on Enteric Dysfunctions "Allerdys" and CERMO-FC Center, Université du Québec à Montréal, C.P. 8888, Branch A, Montréal, Québec H3C 3P8, Canada
| | - Tien Canh Le
- Department of Chemistry, Research Chair on Enteric Dysfunctions "Allerdys" and CERMO-FC Center, Université du Québec à Montréal, C.P. 8888, Branch A, Montréal, Québec H3C 3P8, Canada
| | - Mircea Alexandru Mateescu
- Department of Chemistry, Research Chair on Enteric Dysfunctions "Allerdys" and CERMO-FC Center, Université du Québec à Montréal, C.P. 8888, Branch A, Montréal, Québec H3C 3P8, Canada.
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15
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Chitosan/carboxymethylcellulose-stabilized poly(lactide-co-glycolide) particles as bio-based drug delivery carriers. Carbohydr Polym 2020; 242:116417. [PMID: 32564826 DOI: 10.1016/j.carbpol.2020.116417] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 04/20/2020] [Accepted: 05/01/2020] [Indexed: 12/15/2022]
Abstract
Poly(lactide-co-glycolide) (PLGA) colloidal particles stabilized by complexes of two oppositely charged polysaccharides, chitosan (cationic, CS) and sodium carboxymethylcellulose (anionic, NaCMC), were fabricated. Dichloromethane containing dissolved PLGA was first emulsified in an aqueous phase containing mixtures of CS and NaCMC. Evaporation of dichloromethane from the resulting emulsion led to CS/NaCMC-covered-PLGA particles. CS and NaCMC contents affected the short-term stability of PLGA particles and also their intrinsic characteristics. The particles displayed pH-dependent characteristic. Zeta potential varied from +54 to -50 mV when pH was varied from 3 to 10. CS/NaCMC-covered-PLGA particles showed colloidal stability, over a wider pH range as compared to CS-covered-PLGA particles. Curcumin, a model hydrophobic drug, was encapsulated into the particles up to 10 wt% of PLGA. The CS/NaCMC-covered-PLGA particles loaded with curcumin showed delayed release in mildly acidic conditions and faster release in neutral and basic conditions. Cytotoxicity experiments were carried out with human colorectal carcinoma cells.
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16
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Roy A, Samanta S, Singha K, Maity P, Kumari N, Ghosh A, Dhara S, Pal S. Development of a Thermoresponsive Polymeric Composite Film Using Cross-Linked β-Cyclodextrin Embedded with Carbon Quantum Dots as a Transdermal Drug Carrier. ACS APPLIED BIO MATERIALS 2020; 3:3285-3293. [DOI: 10.1021/acsabm.0c00246] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Arpita Roy
- Department of Chemistry, Indian Institute of Technology (ISM) Dhanbad, Jharkhand 826004, India
| | - Subhendu Samanta
- Department of Chemistry, Indian Institute of Technology (ISM) Dhanbad, Jharkhand 826004, India
| | - Koushik Singha
- Department of Chemistry, Indian Institute of Technology (ISM) Dhanbad, Jharkhand 826004, India
| | - Pritiprasanna Maity
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, West Bengal 721302, India
| | - Nimmy Kumari
- Department of Pharmaceutical Sciences & Technology, Birla Institute of Technology Mesra, Ranchi 835215, India
| | - Animesh Ghosh
- Department of Pharmaceutical Sciences & Technology, Birla Institute of Technology Mesra, Ranchi 835215, India
| | - Santanu Dhara
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, West Bengal 721302, India
| | - Sagar Pal
- Department of Chemistry, Indian Institute of Technology (ISM) Dhanbad, Jharkhand 826004, India
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17
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Lee KM, Oh Y, Yoon H, Chang M, Kim H. Multifunctional Role of MoS 2 in Preparation of Composite Hydrogels: Radical Initiation and Cross-Linking. ACS APPLIED MATERIALS & INTERFACES 2020; 12:8642-8649. [PMID: 31976647 DOI: 10.1021/acsami.9b19567] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
This paper describes the multifunctional effect of molybdenum disulfide (MoS2) that enables the rapid and accessible preparation of nanocomposite hydrogels via a bottom-up design. The MoS2 nanoplatelet forms radical species through a redox reaction with persulfate under aqueous conditions while initiating the polymerization of acrylic monomers and providing noncovalent cross-linking points without requiring external stimuli or extra cross-linkers, leading to the formation of hydrogels that are in situ embedded with inorganic flakes. Furthermore, the addition of MoS2 could induce more rigid and elastic networks compared to those in control hydrogels using a typical cross-linker at the same level; for example, 0.08 wt % MoS2 resulted in a composite hydrogel of which the elastic modulus was 2.5 times greater than that from a hydrogel using N,N'-methylenebis(acrylamide) as the showing phase transition during polymerization. The composite hydrogels are self-healable, taking advantage of reversible physical cross-links. Thus, two cut hydrogel strips could be readily rejoined by heating at 70 °C, and the resulting whole strip showed mechanical strength similar to that of the pristine sample before it was cut. This synthetic approach would give way to the modular design of MoS2-containing composite hydrogels.
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Affiliation(s)
- Kyoung Min Lee
- School of Polymer Science and Engineering & Alan G. MacDiarmid Energy Research Institute , Chonnam National University , 77 Yongbong-ro , Buk-gu, Gwangju 61186 , Korea
- Department of Materials Science and Engineering, College of Engineering , Seoul National University , 1 Gwanak-ro , Gwanak-gu, Seoul 08826 , Korea
| | - Yuree Oh
- School of Polymer Science and Engineering & Alan G. MacDiarmid Energy Research Institute , Chonnam National University , 77 Yongbong-ro , Buk-gu, Gwangju 61186 , Korea
| | - Hyeonseok Yoon
- School of Polymer Science and Engineering & Alan G. MacDiarmid Energy Research Institute , Chonnam National University , 77 Yongbong-ro , Buk-gu, Gwangju 61186 , Korea
| | - Mincheol Chang
- School of Polymer Science and Engineering & Alan G. MacDiarmid Energy Research Institute , Chonnam National University , 77 Yongbong-ro , Buk-gu, Gwangju 61186 , Korea
| | - Hyungwoo Kim
- School of Polymer Science and Engineering & Alan G. MacDiarmid Energy Research Institute , Chonnam National University , 77 Yongbong-ro , Buk-gu, Gwangju 61186 , Korea
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18
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Ye G, Song Z, Yu T, Tan Q, Zhang Y, Chen T, He C, Jin L, Liu N. Dynamic Ag-N Bond Enhanced Stretchable Conductor for Transparent and Self-Healing Electronic Skin. ACS APPLIED MATERIALS & INTERFACES 2020; 12:1486-1494. [PMID: 31793286 DOI: 10.1021/acsami.9b17354] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Stretchable conductors have been achieved by stacking conductive nanomaterials onto the surfaces of elastomeric substrates. However, many of them show a dramatic decrease in conductivity under strain without an efficient way for the conductive layer to release strain. Here, we report a transparent, stretchable, and self-healing conductor with excellent mechanoelectrical stability by introducing dynamic bonding between conductive nanomaterials and an elastomeric substrate. We prepare the conductor by semiembedding Ag nanowires (AgNWs) into a self-healing polydimethylsiloxane (PDMS)-based elastomer, which is modified with bipyridine (Bpy) ligand and further cross-linked by adding Zn2+ as coordinator (Zn-Bpy-PDMS). The dynamic Ag-N bonds not only improve the wettability of the substrate and facilitate the spreading of AgNWs but also reversibly break and reform to accommodate the deformation of AgNWs. As a result, the resistance increase of Zn-Bpy-PDMS/AgNWs is much smaller than that without the dynamic bonding (PDMS/AgNWs). Besides, this conductor exhibits excellent conductivity (76.2 Ω/sq) and transparency (86.6% @ 550 nm), as well as extraordinary self-healing property with a low resistance increase (ΔR/R0 ∼ 1.4) after healing at room temperature for 1 day. This work provides insights into the future design of integrated electronic skin with transparency, stretchability, conductivity, and self-healing capability for applications in wearable optoelectronic devices.
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Affiliation(s)
- Guo Ye
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry , Beijing Normal University , Beijing 100875 , P. R. China
| | - Zizheng Song
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry , Beijing Normal University , Beijing 100875 , P. R. China
| | - Tianhao Yu
- Beijing Graphene Institute , Beijing 100094 , P. R. China
| | - Qishuo Tan
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry , Beijing Normal University , Beijing 100875 , P. R. China
| | - Yan Zhang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry , Beijing Normal University , Beijing 100875 , P. R. China
| | - Tinglei Chen
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry , Beijing Normal University , Beijing 100875 , P. R. China
| | - Changcheng He
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry , Beijing Normal University , Beijing 100875 , P. R. China
| | - Lihua Jin
- Department of Mechanical and Aerospace Engineering , University of California , Los Angeles , California 90095 , United States
| | - Nan Liu
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry , Beijing Normal University , Beijing 100875 , P. R. China
- Beijing Graphene Institute , Beijing 100094 , P. R. China
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19
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Długosz O, Szostak K, Staroń A, Pulit-Prociak J, Banach M. Methods for Reducing the Toxicity of Metal and Metal Oxide NPs as Biomedicine. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E279. [PMID: 31936311 PMCID: PMC7013649 DOI: 10.3390/ma13020279] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 01/04/2020] [Accepted: 01/06/2020] [Indexed: 01/10/2023]
Abstract
The rapid development of medicine has forced equally rapid progress in the field of pharmaceuticals. In connection with the expensive and time-consuming process of finding new drugs, great emphasis is put on the design and use of metal and metal oxides nanoparticles in nanomedicine. The main focus is on comprehensive presentation of both physicochemical properties and the possibilities of using, in particular, silver (Ag) and gold (Au) nanoparticles, as well as zinc oxide (ZnO) and titanium oxide (TiO2) nanoparticles as drug carriers and in the treatment of cancer. An important element of this subject is the possibility of occurrence of toxic effects of these nanoparticles. For this reason, possible mechanisms of toxic actions are presented, as well as methods used to reduce their toxicity to ensure the safety of drug carriers based on these nanostructures.
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Affiliation(s)
| | | | | | | | - Marcin Banach
- Faculty of Chemical Engineering and Technology, Cracow University of Technology, 24 Warszawska St., 31-155 Cracow, Poland; (O.D.); (K.S.); (A.S.); (J.P.-P.)
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20
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Ke X, Dong Z, Tang S, Chu W, Zheng X, Zhen L, Chen X, Ding C, Luo J, Li J. A natural polymer based bioadhesive with self-healing behavior and improved antibacterial properties. Biomater Sci 2020; 8:4346-4357. [PMID: 32601625 DOI: 10.1039/d0bm00624f] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Bioadhesives are of great interest for tissue/wound closure to reduce surgical time, minimize treatment invasiveness, and prevent body fluid leakage.
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21
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Wang F, Wang Y, Qu G, Yao X, Ma C, Song M, Wang H, Jiang G. Ultralong AgNWs-induced toxicity in A549 cells and the important roles of ROS and autophagy. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 186:109742. [PMID: 31593826 DOI: 10.1016/j.ecoenv.2019.109742] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 09/24/2019] [Accepted: 09/28/2019] [Indexed: 06/10/2023]
Abstract
Safety concerns have been raised with regard to silver nanowires (AgNWs) because of their extensive applications. Recently, ultralong AgNWs have shown physical properties superior to those of short AgNWs. However, little is known about their toxicity and potential risks. In this study, we demonstrated a series of ultralong AgNWs-induced biological effects in human lung cancer epithelial cells (A549). Ultralong AgNWs treatments induced ROS generation, mitochondria-mediated apoptosis, and self-protective autophagy at nonlethal concentrations. In contrast to some previous reports, apoptosis was found not to correlate with the reduction of intracellular ROS. Measuring the processing of ROS generation, apoptosis and autophagy, we demonstrated that ROS not only enhance mitochondrial damage, but also raise protective autophagic flux in ultralong AgNW-treated cells. Moreover, ultralong AgNWs were found to be internalized into the cytoplasm of the epithelial cells. This study not only investigates ultralong AgNWs-induced cytotoxicity but also pinpoints ROS as a key signal in mechanisms of their toxicity.
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Affiliation(s)
- Fengbang Wang
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuanyuan Wang
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Guangbo Qu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Xinglei Yao
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Chunyan Ma
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Maoyong Song
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Hailin Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
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22
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Alba-Molina D, Giner-Casares JJ, Cano M. Bioconjugated Plasmonic Nanoparticles for Enhanced Skin Penetration. Top Curr Chem (Cham) 2019; 378:8. [PMID: 31840194 DOI: 10.1007/s41061-019-0273-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 12/03/2019] [Indexed: 11/26/2022]
Abstract
Plasmonic nanoparticles (NPs) are one of the most promising and studied inorganic nanomaterials for different biomedical applications. Plasmonic NPs have excellent biocompatibility, long-term stability against physical and chemical degradation, relevant optical properties, well-known synthesis methods and tuneable surface functionalities. Herein, we review recently reported bioconjugated plasmonic NPs using different chemical approaches and loading cargoes (such as drugs, genes, and proteins) for enhancement of transdermal delivery across biological tissues. The main aim is to understand the interaction of the complex skin structure with biomimetic plasmonic NPs. This knowledge is not only important in enhancing transdermal delivery of pharmaceutical formulations but also for controlling undesired skin penetration of industrial products, such as cosmetics, sunscreen formulations and any other mass-usage consumable that contains plasmonic NPs.
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Affiliation(s)
- David Alba-Molina
- Department of Physical Chemistry and Applied Thermodynamics, Institute of Nanochemistry (IUNAN), University of Córdoba, Campus Universitario de Rabanales, Ed. Marie Curie, 14014, Córdoba, Spain
| | - Juan J Giner-Casares
- Department of Physical Chemistry and Applied Thermodynamics, Institute of Nanochemistry (IUNAN), University of Córdoba, Campus Universitario de Rabanales, Ed. Marie Curie, 14014, Córdoba, Spain.
| | - Manuel Cano
- Department of Physical Chemistry and Applied Thermodynamics, Institute of Nanochemistry (IUNAN), University of Córdoba, Campus Universitario de Rabanales, Ed. Marie Curie, 14014, Córdoba, Spain.
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23
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González K, Guaresti O, Palomares T, Alonso-Varona A, Eceiza A, Gabilondo N. The role of cellulose nanocrystals in biocompatible starch-based clicked nanocomposite hydrogels. Int J Biol Macromol 2019; 143:265-272. [PMID: 31816373 DOI: 10.1016/j.ijbiomac.2019.12.050] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 11/28/2019] [Accepted: 12/05/2019] [Indexed: 01/06/2023]
Abstract
Starch-based nanocomposite hydrogels were successfully prepared by the Diels-Alder click cross-linking reaction between furan-functionalized starch derivative and a water-soluble tetrafunctional maleimide compound, adding cellulose nanocrystals (CNC) as nanoreinforcement. The effect of increasing the CNC content on rheological and swelling properties as well as on the morphology of the hydrogels was analyzed. Besides, in order to evaluate the applicability of the as-prepared hydrogels as delivery systems, drug release measurements and in vitro cytotoxicity assays were also performed. It was found that the prepared nanocomposite hydrogels presented higher stiffness as the CNC content increased. The incorporation of the nanocrystals modified the internal porous microstructure of the hydrogels, affecting consequently both the swelling capacity and the drug-delivery kinetics. Moreover, the prepared nanocomposite hydrogels showed non-toxic behavior, demonstrating their potential applicability in the biomedical field, especially as sustained drug delivery systems.
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Affiliation(s)
- Kizkitza González
- Department of Chemical and Environmental Engineering, 'Materials + Technologies' Group, Engineering College of Gipuzkoa, University of the Basque Country (UPV/EHU), Plaza Europa 1, Donostia-San Sebastian 20018, Gipuzkoa, Spain.
| | - Olatz Guaresti
- Department of Chemical and Environmental Engineering, 'Materials + Technologies' Group, Engineering College of Gipuzkoa, University of the Basque Country (UPV/EHU), Plaza Europa 1, Donostia-San Sebastian 20018, Gipuzkoa, Spain.
| | - Teodoro Palomares
- Department of Cellular Biology and Histology, Faculty of Medicine and Odontology, University of the Basque Country (UPV/EHU), B Sarriena s/n, Leioa 48940, Bizkaia, Spain.
| | - Ana Alonso-Varona
- Department of Cellular Biology and Histology, Faculty of Medicine and Odontology, University of the Basque Country (UPV/EHU), B Sarriena s/n, Leioa 48940, Bizkaia, Spain.
| | - Arantxa Eceiza
- Department of Chemical and Environmental Engineering, 'Materials + Technologies' Group, Engineering College of Gipuzkoa, University of the Basque Country (UPV/EHU), Plaza Europa 1, Donostia-San Sebastian 20018, Gipuzkoa, Spain.
| | - Nagore Gabilondo
- Department of Chemical and Environmental Engineering, 'Materials + Technologies' Group, Engineering College of Gipuzkoa, University of the Basque Country (UPV/EHU), Plaza Europa 1, Donostia-San Sebastian 20018, Gipuzkoa, Spain.
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24
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Wang F, Wang Y, Yao X, Ma C, Yin Y, Song M. Length and diameter-dependent phagocytosis and cytotoxicity of long silver nanowires in macrophages. CHEMOSPHERE 2019; 237:124565. [PMID: 31549664 DOI: 10.1016/j.chemosphere.2019.124565] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 07/28/2019] [Accepted: 08/09/2019] [Indexed: 06/10/2023]
Abstract
Long silver nanowires (AgNWs, >5 μm) have shown promising applications in next generation biomaterials. However, the toxicity of long AgNWs is not well characterized in terms of their size. In this study, five AgNWs types, including SAgNW30 (length: 5-10 μm; diameter: 30 nm), MAgNW30 (length: 20-30 μm; diameter: 30 nm), LAgNW30 (length: ∼100 μm; diameter: 30 nm), LAgNW50 (length: ∼100 μm; diameter: 50 nm), and LAgNW100 (length: ∼100 μm; diameter: 100 nm), were used to investigate the size-dependent phagocytosis and cytotoxicity in macrophage. It showed that SAgNW30, MAgNW30, LAgNW30 can be fully phagocytosed by macrophages, but LAgNW50 and LAgNW100 frustrated the phagocytosis. It demonstrated that LAgNW30 can be internalized into macrophage in a curly manner. The size-dependent cytotoxicity was observed in cell viability, apoptosis, mitochondrial damage, phenotypic transition, and inflammatory response in AgNWs-treated macrophage. The AgNWs-induced cytotoxicity was depended on their length and diameter, increased gradually in the order of SAgNW30 > MAgNW30 > LAgNW30 > LAgNW50 > LAgNW100. The findings presented here will assist in the evaluation of the size-dependent cytotoxicity mediated by long AgNWs.
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Affiliation(s)
- Fengbang Wang
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuanyuan Wang
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xinglei Yao
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Chunyan Ma
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Yongguang Yin
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Maoyong Song
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
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25
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Li J, Wang B, Ge Z, Cheng R, Kang L, Zhou X, Zeng J, Xu J, Tian X, Gao W, Chen K, Qiu C, Cheng Z. Flexible and Hierarchical 3D Interconnected Silver Nanowires/Cellulosic Paper-Based Thermoelectric Sheets with Superior Electrical Conductivity and Ultrahigh Thermal Dispersion Capability. ACS APPLIED MATERIALS & INTERFACES 2019; 11:39088-39099. [PMID: 31566951 DOI: 10.1021/acsami.9b13675] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
To date, various electronic devices have been strategically fabricated, and simultaneous realization of high electrical conductivity, sensing property, and heat-conducting property by a simple, efficient, and accurate approach is significant but still challenging. Here, cellulosic fiber supported 3D interconnected silver nanowire (AgNW) networks with hierarchical structures are rationally designed to achieve excellent electrical conductivity and superior thermal dispersion capability. In particular, thermal annealing at the junctions enables both phonon and electron transfer as well as impedes interfacial slippage. In the current study, the AgNW/cellulosic paper with the low Ag content (1.55 wt %) exhibits a low sheet resistance of 0.51 Ω sq-1. More importantly, the AgNW/cellulosic paper-based flexible strain sensor has been reasonably developed, which can be applied to monitor various microstructural changes and human motions with high sensitivity and robust stability (fast response/relaxation time of ∼100 ms and high stability >2000 bending-stretching cycles). The AgNW/cellulosic paper-based device also displays efficient thermal dispersion property, which offers exciting opportunities for thermal management application. Furthermore, the obtained hybrid paper exhibits superior heat dispersion capacity for thermal management devices. Overall, uniform dispersion and 3D interconnected junctions of AgNW among the fibers inside the cellulosic papers lead to the combination of high mechanical strength, highly efficient electrical conductivity, and ultrahigh heat dispersion property. The AgNW/cellulosic paper has promising potentials in the flexible and wearable sensing elements, thermal management materials, and artificial intelligence devices.
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Affiliation(s)
- Jinpeng Li
- Plant Fiber Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Bin Wang
- Plant Fiber Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Zhou Ge
- Plant Fiber Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Rui Cheng
- Plant Fiber Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Lei Kang
- Plant Fiber Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Xiaoming Zhou
- Plant Fiber Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Jinsong Zeng
- Plant Fiber Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Jun Xu
- Plant Fiber Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Xiaojun Tian
- SDIC Biotech Investment CO., Ltd. , No. 147, Xizhimen Street, Xicheng District , Beijing 100034 , P. R. China
| | - Wenhua Gao
- Plant Fiber Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Kefu Chen
- Plant Fiber Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Chaoying Qiu
- Department of Food Science and Engineering , Jinan University , Guangzhou 510632 , P. R. China
| | - Zheng Cheng
- Plant Fiber Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
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Bao Z, Xian C, Yuan Q, Liu G, Wu J. Natural Polymer-Based Hydrogels with Enhanced Mechanical Performances: Preparation, Structure, and Property. Adv Healthc Mater 2019; 8:e1900670. [PMID: 31364824 DOI: 10.1002/adhm.201900670] [Citation(s) in RCA: 134] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 07/03/2019] [Indexed: 12/14/2022]
Abstract
Hydrogels based on natural polymers have bright application prospects in biomedical fields due to their outstanding biocompatibility and biodegradability. However, the poor mechanical performances of pure natural polymer-based hydrogels greatly limit their application prospects. Recently, a variety of strategies has been applied to prepare natural polymer-based hydrogels with enhanced mechanical properties, which generally exhibit stiffening, strengthening, and stretchable behaviors. This article summarizes the recent progress of natural polymer-based hydrogels with enhanced mechanical properties. From a structure point of view, four kinds of hydrogel are reviewed; double network hydrogels, nanocomposite hydrogels, click chemistry-based hydrogels, and supramolecular hydrogels. For each typical hydrogel, its preparation, structure, and mechanical performance are introduced in detail. At the end of this article, the current challenges and future prospects of hydrogels based on natural polymers are discussed and it is pointed out that 3D printing may offer a new platform for the development of natural polymer-based hydrogels.
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Affiliation(s)
- Ziting Bao
- School of Biomedical EngineeringSun Yat‐sen University Guangzhou 510275 Guangdong P. R. China
| | - Caihong Xian
- School of Biomedical EngineeringSun Yat‐sen University Guangzhou 510275 Guangdong P. R. China
| | - Qijuan Yuan
- School of Biomedical EngineeringSun Yat‐sen University Guangzhou 510275 Guangdong P. R. China
| | - Guiting Liu
- School of Biomedical EngineeringSun Yat‐sen University Guangzhou 510275 Guangdong P. R. China
| | - Jun Wu
- School of Biomedical EngineeringSun Yat‐sen University Guangzhou 510275 Guangdong P. R. China
- Research Institute of Sun Yat‐Sen University in Shenzhen Shenzhen 518057 Guangdong P. R. China
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Niu XQ, Zhang DP, Bian Q, Feng XF, Li H, Rao YF, Shen YM, Geng FN, Yuan AR, Ying XY, Gao JQ. Mechanism investigation of ethosomes transdermal permeation. INTERNATIONAL JOURNAL OF PHARMACEUTICS-X 2019; 1:100027. [PMID: 31517292 PMCID: PMC6733291 DOI: 10.1016/j.ijpx.2019.100027] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 07/16/2019] [Accepted: 08/04/2019] [Indexed: 11/25/2022]
Abstract
Ethosomes are widely used to promote transdermal permeation of both lipophilic and hydrophilic drugs, but the mechanism of interaction between the ethosomes and the skin remains unclear. In this work, it was exploded with several technologies and facilities. Firstly, physical techniques such as attenuated total reflectance fourier-transform infrared and laser confocal Raman were used and the results indicated that the phospholipids configuration of stratum corneum changes from steady state to unstable state with the treatment of ethosomes. Differential scanning calorimetry reflected the thermodynamics change in stratum corneum after treatment with ethosomes. The results revealed that the skin of Bama mini-pigs, which is similar to human skin, treated by ethosomes had a relatively low Tm and enthalpy. Scanning electron microscopy and transmission electron microscopy showed that the microstructure and ultrastructure of stratum corneum was not damaged by ethosomes treatment. Furthermore, confocal laser scanning microscopy revealed that lipid labeled ethosomes could penetrate the skin via stratum corneum mainly through intercellular route, while during the process of penetration, phospholipids were retained in the upper epidermis. Cell experiments confirmed that ethosomes were distributed mainly on the cell membrane. Further study showed that only the drug-loaded ethosomes increased the amount of permeated drug. The current study, for the first time, elucidated the mechanistic behavior of ethosomes in transdermal application from molecular configuration, thermodynamic properties, ultrastructure, fluorescent labeling and cellular study. It is anticipated that the approaches and results described in the present study will benefit for better design of drug-loaded ethosomes.
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Affiliation(s)
- Xiao-Qian Niu
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China.,Jiangsu Engineering Research Center for New-Type External and Transdermal Preparations, PR China
| | - Dan-Ping Zhang
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Qiong Bian
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Xing-Fu Feng
- Ningbo Saiyusi Biotechnology Co., Ltd., Ningbo 315806, PR China
| | - Hao Li
- Sanova Bioscience Inc., 42 Nagog Park, STE110, Acton, MA 01741, USA
| | - Yue-Feng Rao
- Department of Pharmacy, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, PR China
| | - Yong-Mei Shen
- Sichuan Gooddoctor Pharmaceutical Group Co., Ltd, Chengdu 610000, PR China
| | - Fu-Neng Geng
- Sichuan Gooddoctor Pharmaceutical Group Co., Ltd, Chengdu 610000, PR China
| | - An-Ran Yuan
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Xiao-Ying Ying
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Jian-Qing Gao
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China.,Jiangsu Engineering Research Center for New-Type External and Transdermal Preparations, PR China
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Javanbakht S, Shaabani A. Carboxymethyl cellulose-based oral delivery systems. Int J Biol Macromol 2019; 133:21-29. [DOI: 10.1016/j.ijbiomac.2019.04.079] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 04/04/2019] [Accepted: 04/11/2019] [Indexed: 12/22/2022]
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29
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Patra P, Seesala VS, Soni SR, Roy RK, Dhara S, Ghosh A, Patra N, Pal S. Biopolymeric pH-responsive fluorescent gel for in-vitro and in-vivo colon specific delivery of metronidazole and ciprofloxacin. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.02.037] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Whitehead FA, Paramita VD, Teimouri S, Young S, Kasapis S. Controlled release of ascorbic acid from genipin-crosslinked gelatin matrices under moving boundary conditions. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2018.10.026] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Synthesis and response of pineapple peel carboxymethyl cellulose-g-poly (acrylic acid-co-acrylamide)/graphene oxide hydrogels. Carbohydr Polym 2019; 215:366-376. [PMID: 30981366 DOI: 10.1016/j.carbpol.2019.03.090] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Revised: 03/25/2019] [Accepted: 03/25/2019] [Indexed: 02/06/2023]
Abstract
Developing biomaterials derived from the renewable resources is an effective and sustainable approach to address environmental and resource issues. Herein, hydrogels were synthesized by grafting copolymerization of acrylic acid and acrylamide onto pineapple peel carboxymethyl cellulose with incorporation of graphene oxide (GO). The structure, swelling, and multiple responses to salt, pH and organic solvents were investigated. The incorporation of GO resulted in a higher cross-linking density of the network and thus decreased the swelling ability. Expansion of the hydrogels occurred at high pH, whereas shrinkage occurred at low pH or in salt solutions and organic solvents/water mixtures, exhibiting multiple responses to pH, salt and organic solvents. Moreover, the hydrogels showed a selective adsorption behavior to various dyes and the incorporation of GO enhanced the adsorption performance. The above results may allude several potential applications of the hydrogels, such as adsorption, smart actuators and drug release fields.
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Chen J, Chen F, Meng Y, Wang S, Long Z. Oxidized microcrystalline cellulose improve thermoplastic starch-based composite films: Thermal, mechanical and water-solubility properties. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.02.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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33
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Graft copolymeric flocculant using functionalized starch towards treatment of blast furnace effluent. Int J Biol Macromol 2019; 125:35-40. [DOI: 10.1016/j.ijbiomac.2018.12.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 11/19/2018] [Accepted: 12/02/2018] [Indexed: 12/11/2022]
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34
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Starch/graphene hydrogels via click chemistry with relevant electrical and antibacterial properties. Carbohydr Polym 2018; 202:372-381. [DOI: 10.1016/j.carbpol.2018.09.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 09/03/2018] [Accepted: 09/04/2018] [Indexed: 12/22/2022]
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35
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Bu C, Mu L, Cao X, Chen M, She G, Shi W. Silver Nanowire-Based Fluorescence Thermometer for a Single Cell. ACS APPLIED MATERIALS & INTERFACES 2018; 10:33416-33422. [PMID: 30188110 DOI: 10.1021/acsami.8b09696] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A fluorescence thermometer based on silver nanowires (AgNWs) is realized by assembling Texas Red (TR)-marked thermal-sensitive DNA stem-loops (TR-DNA stem-loop) on the surface of AgNWs. Temperature configures the structure of the TR-DNA stem-loop and resultantly adjusts the energy transfer between TR and the AgNWs, which could sensitively control the fluorescence intensity of the thermometer. The thermometer is sensitive to the temperature ranging from 30 to 40 °C with the sensitivity of 2.6%/°C. Under the assistance of laser confocal microscopy, a temperature change within a single cell was observed by the monofilament AgNW-based thermometer.
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Affiliation(s)
- Congcong Bu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Lixuan Mu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
| | - Xingxing Cao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Min Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Guangwei She
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
| | - Wensheng Shi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
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Capanema NS, Mansur AA, Carvalho SM, Carvalho IC, Chagas P, de Oliveira LCA, Mansur HS. Bioengineered carboxymethyl cellulose-doxorubicin prodrug hydrogels for topical chemotherapy of melanoma skin cancer. Carbohydr Polym 2018; 195:401-412. [DOI: 10.1016/j.carbpol.2018.04.105] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 04/02/2018] [Accepted: 04/26/2018] [Indexed: 11/16/2022]
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37
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Li G, Liu L, Sun Y, Liu H. Ecofriendly Synthesis of Silver–Carboxy Methyl Cellulose Nanocomposites and Their Antibacterial Activity. J CLUST SCI 2018. [DOI: 10.1007/s10876-018-1426-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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