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Chithra Lekha P, Marini L, Jhajharia SK, Aadinath W, Muthuvijayan V, Paramasivan M, Gonmei MC, Padmanabhan MK, Jeyaraman M, Mahajan RL. Edge-functionalized coal-derived graphene oxide in bacterial nanocellulose hydrogel for active wound healing. Int J Biol Macromol 2024:132589. [PMID: 38788882 DOI: 10.1016/j.ijbiomac.2024.132589] [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: 08/30/2023] [Revised: 05/10/2024] [Accepted: 05/21/2024] [Indexed: 05/26/2024]
Abstract
This work presents a comparison of physicochemical and in vitro active wound healing properties of two distinct graphene oxides (GOs) from graphene and coal. These GOs are incorporated in Bacterial nanocellulose (BNC) to form hydrogels. The performance and limitations of the loading fraction of both GOs in BNC are controlled by the processing technology and the source materials from which GOs are derived. Edge functionalization with C-GO offers an advantage of facilitating edge-to-face assembly in the hydrogel leading to better dispersion compared to the face-to-face assembly of basal functionalized G-GO. The latter leads to more aggregation of G-GO, resulting in a lower optimal loading fraction. Our investigation into the antibacterial properties of the BNC and BNC/GO hydrogels against gram-negative E. coli revealed inhibitory effects of the BNC/GO hydrogels that intensified with an increase in the concentration of GO. Furthermore, an in vitro wound scratch assay demonstrated that BNC/C-GO hydrogels promote better cell migration, confirming their superior biocompatibility and suitability as active wound dressings, albeit limited by loading fraction due to agglomeration. These findings shed light on the performance and limitations of GOs for diverse applications, emphasizing the significance of exploring the influence of different methods and source materials of GOs.
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Affiliation(s)
- P Chithra Lekha
- Healthcare Technologies Division, Virginia Tech India Research and Education Forum, Indian Institute of Technology Madras Research Park, Chennai 600 113, Tamil Nadu, INDIA.
| | - L Marini
- Centre for Nanoscience and Technology, Anna University, AC Tech Campus, Chennai 600 025, Tamil Nadu, India
| | - Suman K Jhajharia
- Healthcare Technologies Division, Virginia Tech India Research and Education Forum, Indian Institute of Technology Madras Research Park, Chennai 600 113, Tamil Nadu, INDIA; Department of Mechanical Engineering, Virginia Tech, Blacksburg, VA 24061, USA
| | - W Aadinath
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, INDIA
| | - Vignesh Muthuvijayan
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, INDIA
| | - Mareeswari Paramasivan
- Healthcare Technologies Division, Virginia Tech India Research and Education Forum, Indian Institute of Technology Madras Research Park, Chennai 600 113, Tamil Nadu, INDIA
| | - Monica Chingchuilin Gonmei
- Healthcare Technologies Division, Virginia Tech India Research and Education Forum, Indian Institute of Technology Madras Research Park, Chennai 600 113, Tamil Nadu, INDIA
| | - M K Padmanabhan
- Dr. MGR Educational and Research Institute (Deemed to be University), Chennai, TN 600 095, INDIA
| | - Madhan Jeyaraman
- Department of Orthopaedics, Sri Lalithambigai Medical College and Hospital, Chennai, TN 600 095, INDIA
| | - Roop L Mahajan
- Department of Mechanical Engineering, Department of Materials Science and Engineering, Virginia Tech, Blacksburg, VA 24061, USA.
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Rybak D, Su YC, Li Y, Ding B, Lv X, Li Z, Yeh YC, Nakielski P, Rinoldi C, Pierini F, Dodda JM. Evolution of nanostructured skin patches towards multifunctional wearable platforms for biomedical applications. NANOSCALE 2023; 15:8044-8083. [PMID: 37070933 DOI: 10.1039/d3nr00807j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Recent advances in the field of skin patches have promoted the development of wearable and implantable bioelectronics for long-term, continuous healthcare management and targeted therapy. However, the design of electronic skin (e-skin) patches with stretchable components is still challenging and requires an in-depth understanding of the skin-attachable substrate layer, functional biomaterials and advanced self-powered electronics. In this comprehensive review, we present the evolution of skin patches from functional nanostructured materials to multi-functional and stimuli-responsive patches towards flexible substrates and emerging biomaterials for e-skin patches, including the material selection, structure design and promising applications. Stretchable sensors and self-powered e-skin patches are also discussed, ranging from electrical stimulation for clinical procedures to continuous health monitoring and integrated systems for comprehensive healthcare management. Moreover, an integrated energy harvester with bioelectronics enables the fabrication of self-powered electronic skin patches, which can effectively solve the energy supply and overcome the drawbacks induced by bulky battery-driven devices. However, to realize the full potential offered by these advancements, several challenges must be addressed for next-generation e-skin patches. Finally, future opportunities and positive outlooks are presented on the future directions of bioelectronics. It is believed that innovative material design, structure engineering, and in-depth study of fundamental principles can foster the rapid evolution of electronic skin patches, and eventually enable self-powered close-looped bioelectronic systems to benefit mankind.
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Affiliation(s)
- Daniel Rybak
- Institute of Fundamental Technological Research, Polish Academy of Science, 02-106 Warsaw, Poland.
| | - Yu-Chia Su
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan
| | - Yang Li
- College of Electronic and Optical Engineering & College of Microelectronics, Institute of Flexible Electronics (Future Technology), Nanjing University of Posts & Telecommunications (NJUPT), Nanjing, 210023, China
| | - Bin Ding
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China.
| | - Xiaoshuang Lv
- Shanghai Frontier Science Research Center for Modern Textiles, College of Textiles, Donghua University, Shanghai 201620, China
| | - Zhaoling Li
- Shanghai Frontier Science Research Center for Modern Textiles, College of Textiles, Donghua University, Shanghai 201620, China
| | - Yi-Cheun Yeh
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan
| | - Pawel Nakielski
- Institute of Fundamental Technological Research, Polish Academy of Science, 02-106 Warsaw, Poland.
| | - Chiara Rinoldi
- Institute of Fundamental Technological Research, Polish Academy of Science, 02-106 Warsaw, Poland.
| | - Filippo Pierini
- Institute of Fundamental Technological Research, Polish Academy of Science, 02-106 Warsaw, Poland.
| | - Jagan Mohan Dodda
- New Technologies - Research Centre (NTC), University of West Bohemia, Univerzitní 8, 301 00 Pilsen, Czech Republic.
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Release of Bioactive Molecules from Graphene Oxide-Alginate Hybrid Hydrogels: Effect of Crosslinking Method. Mol Vis 2023. [DOI: 10.3390/c9010008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
To investigate the influence of crosslinking methods on the releasing performance of hybrid hydrogels, we synthesized two systems consisting of Graphene oxide (GO) as a functional element and alginate as polymer counterpart by means of ionic gelation (physical method, HA−GOP) and radical polymerization (chemical method, HA−GOC). Formulations were optimized to maximize the GO content (2.0 and 1.15% for HA−GOP and HA−GOC, respectively) and Curcumin (CUR) was loaded as a model drug at 2.5, 5.0, and 7.5% (by weight). The physico-chemical characterization confirmed the homogeneous incorporation of GO within the polymer network and the enhanced thermal stability of hybrid vs. blank hydrogels. The determination of swelling profiles showed a higher swelling degree for HA−GOC and a marked pH responsivity due to the COOH functionalities. Moreover, the application of external voltages modified the water affinity of HA−GOC, while they accelerated the degradation of HA−GOP due to the disruption of the crosslinking points and the partial dissolution of alginate. The evaluation of release profiles, extensively analysed by the application of semi-empirical mathematical models, showed a sustained release from hybrid hydrogels, and the possibility to modulate the releasing amount and rate by electro-stimulation of HA−GOC.
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Aliakbar Ahovan Z, Esmaeili Z, Eftekhari BS, Khosravimelal S, Alehosseini M, Orive G, Dolatshahi-Pirouz A, Pal Singh Chauhan N, Janmey PA, Hashemi A, Kundu SC, Gholipourmalekabadi M. Antibacterial smart hydrogels: New hope for infectious wound management. Mater Today Bio 2022; 17:100499. [PMID: 36466959 PMCID: PMC9709163 DOI: 10.1016/j.mtbio.2022.100499] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/31/2022] [Accepted: 11/18/2022] [Indexed: 11/21/2022] Open
Abstract
Millions of people die annually due to uncured wound infections. Healthcare systems incur high costs to treat wound infections. Tt is predicted to become more challenging due to the rise of multidrug-resistant conditions. During the last decades, smart antibacterial hydrogels could attract attention as a promising solution, especially for skin wound infections. These antibacterial hydrogels are termed 'smart' due to their response to specific physical and chemical environmental stimuli. To deliver different drugs to particular sites in a controlled manner, various types of crosslinking strategies are used in the manufacturing process. Smart hydrogels are designed to provide antimicrobial agents to the infected sites or are built from polymers with inherent disinfectant properties. This paper aims to critically review recent pre-clinical and clinical advances in using smart hydrogels against skin wound infections and propose the next best thing for future trends. For this purpose, an introduction to skin wound healing and disease is presented and intelligent hydrogels responding to different stimuli are introduced. Finally, the most promising investigations are discussed in their related sections. These studies can pave the way for producing new biomaterials with clinical applications.
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Affiliation(s)
- Zahra Aliakbar Ahovan
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Esmaeili
- Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| | | | - Sadjad Khosravimelal
- Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Morteza Alehosseini
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Gorka Orive
- NanoBioCel Research Group, School of Pharmacy, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz, Spain
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN). Vitoria-Gasteiz, Spain
- University Institute for Regenerative Medicine and Oral Implantology - UIRMI (UPV/EHU-Fundación Eduardo Anitua). Vitoria-Gasteiz, Spain
- Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain
- Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower, Singapore
| | | | | | - Paul A. Janmey
- Bioengineering Department, University of Pennsylvania, Philadelphia, USA
| | - Ali Hashemi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Subhas C. Kundu
- 3Bs Research Group, I3Bs - Research Institute on Biomaterials, Biodegradable and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Minho, AvePark, Guimaraes, Portugal
| | - Mazaher Gholipourmalekabadi
- Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
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Salehipour M, Rezaei S, Yazdani M, Mogharabi-Manzari M. Recent advances in preparation of polymer hydrogel composites and their applications in enzyme immobilization. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04370-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Khadem E, Kharaziha M, Bakhsheshi-Rad HR, Das O, Berto F. Cutting-Edge Progress in Stimuli-Responsive Bioadhesives: From Synthesis to Clinical Applications. Polymers (Basel) 2022; 14:polym14091709. [PMID: 35566878 PMCID: PMC9104595 DOI: 10.3390/polym14091709] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 03/31/2022] [Accepted: 04/08/2022] [Indexed: 02/04/2023] Open
Abstract
With the advent of “intelligent” materials, the design of smart bioadhesives responding to chemical, physical, or biological stimuli has been widely developed in biomedical applications to minimize the risk of wounds reopening, chronic pain, and inflammation. Intelligent bioadhesives are free-flowing liquid solutions passing through a phase shift in the physiological environment due to stimuli such as light, temperature, pH, and electric field. They possess great merits, such as ease to access and the ability to sustained release as well as the spatial transfer of a biomolecule with reduced side effects. Tissue engineering, wound healing, drug delivery, regenerative biomedicine, cancer therapy, and other fields have benefited from smart bioadhesives. Recently, many disciplinary attempts have been performed to promote the functionality of smart bioadhesives and discover innovative compositions. However, according to our knowledge, the development of multifunctional bioadhesives for various biomedical applications has not been adequately explored. This review aims to summarize the most recent cutting-edge strategies (years 2015–2021) developed for stimuli-sensitive bioadhesives responding to external stimuli. We first focus on five primary categories of stimuli-responsive bioadhesive systems (pH, thermal, light, electric field, and biomolecules), their properties, and limitations. Following the introduction of principal criteria for smart bioadhesives, their performances are discussed, and certain smart polymeric materials employed in their creation in 2015 are studied. Finally, advantages, disadvantages, and future directions regarding smart bioadhesives for biomedical applications are surveyed.
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Affiliation(s)
- Elham Khadem
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran;
| | - Mahshid Kharaziha
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran;
- Correspondence: (M.K.); (F.B.)
| | - Hamid Reza Bakhsheshi-Rad
- Advanced Materials Research Center, Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran;
| | - Oisik Das
- Structural and Fire Engineering Division, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, 97187 Luleå, Sweden;
| | - Filippo Berto
- Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway
- Correspondence: (M.K.); (F.B.)
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Madeo LF, Sarogni P, Cirillo G, Vittorio O, Voliani V, Curcio M, Shai-Hee T, Büchner B, Mertig M, Hampel S. Curcumin and Graphene Oxide Incorporated into Alginate Hydrogels as Versatile Devices for the Local Treatment of Squamous Cell Carcinoma. MATERIALS 2022; 15:ma15051648. [PMID: 35268879 PMCID: PMC8911244 DOI: 10.3390/ma15051648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 02/17/2022] [Accepted: 02/18/2022] [Indexed: 12/25/2022]
Abstract
With the aim of preparing hybrid hydrogels suitable for use as patches for the local treatment of squamous cell carcinoma (SCC)-affected areas, curcumin (CUR) was loaded onto graphene oxide (GO) nanosheets, which were then blended into an alginate hydrogel that was crosslinked by means of calcium ions. The homogeneous incorporation of GO within the polymer network, which was confirmed through morphological investigations, improved the stability of the hybrid system compared to blank hydrogels. The weight loss in the 100–170 °C temperature range was reduced from 30% to 20%, and the degradation of alginate chains shifted to higher temperatures. Moreover, GO enhanced the stability in water media by counteracting the de-crosslinking process of the polymer network. Cell viability assays showed that the loading of CUR (2.5% and 5% by weight) was able to reduce the intrinsic toxicity of GO towards healthy cells, while higher amounts were ineffective due to the antioxidant/prooxidant paradox. Interestingly, the CUR-loaded systems were found to possess a strong cytotoxic effect in SCC cancer cells, and the sustained CUR release (~50% after 96 h) allowed long-term anticancer efficiency to be hypothesized.
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Affiliation(s)
- Lorenzo Francesco Madeo
- Leibniz Institute of Solid State and Material Research Dresden, 01069 Dresden, Germany; (B.B.); (S.H.)
- Correspondence: (L.F.M.); (G.C.); Tel.: +49-35-1465-9883 (L.F.M.); +39-09-8449-3208 (G.C.)
| | - Patrizia Sarogni
- Center for Nanotechnology Innovation, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, 56127 Pisa, Italy; (P.S.); (V.V.)
| | - Giuseppe Cirillo
- Department of Pharmacy Health and Nutritional Science, University of Calabria, 87036 Rende, Italy;
- Correspondence: (L.F.M.); (G.C.); Tel.: +49-35-1465-9883 (L.F.M.); +39-09-8449-3208 (G.C.)
| | - Orazio Vittorio
- Children’s Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, High Street, Randwick, NSW 2052, Australia; (O.V.); (T.S.-H.)
- School of Women’s and Children’s Health, University of New South Wales, Kensington, NSW 2052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Australian Centre for NanoMedicine, University of New South Wales, Kensington, NSW 2052, Australia
| | - Valerio Voliani
- Center for Nanotechnology Innovation, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, 56127 Pisa, Italy; (P.S.); (V.V.)
| | - Manuela Curcio
- Department of Pharmacy Health and Nutritional Science, University of Calabria, 87036 Rende, Italy;
| | - Tyler Shai-Hee
- Children’s Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, High Street, Randwick, NSW 2052, Australia; (O.V.); (T.S.-H.)
- School of Women’s and Children’s Health, University of New South Wales, Kensington, NSW 2052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Australian Centre for NanoMedicine, University of New South Wales, Kensington, NSW 2052, Australia
| | - Bernd Büchner
- Leibniz Institute of Solid State and Material Research Dresden, 01069 Dresden, Germany; (B.B.); (S.H.)
- Institute of Solid State and Materials Physics, Technische Universität Dresden, 01062 Dresden, Germany
| | - Michael Mertig
- Institute of Physical Chemistry, Technische Universität Dresden, 01062 Dresden, Germany;
- Kurt-Schwabe-Institut für Mess- und Sensortechnik Meinsberg e.V., 04736 Waldheim, Germany
| | - Silke Hampel
- Leibniz Institute of Solid State and Material Research Dresden, 01069 Dresden, Germany; (B.B.); (S.H.)
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Adhesive hydrogels with toughness, stretchability, and conductivity performances for motion monitoring. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04110-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yu R, Zhang H, Guo B. Conductive Biomaterials as Bioactive Wound Dressing for Wound Healing and Skin Tissue Engineering. NANO-MICRO LETTERS 2021; 14:1. [PMID: 34859323 PMCID: PMC8639891 DOI: 10.1007/s40820-021-00751-y] [Citation(s) in RCA: 212] [Impact Index Per Article: 70.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 10/29/2021] [Indexed: 05/06/2023]
Abstract
Conductive biomaterials based on conductive polymers, carbon nanomaterials, or conductive inorganic nanomaterials demonstrate great potential in wound healing and skin tissue engineering, owing to the similar conductivity to human skin, good antioxidant and antibacterial activities, electrically controlled drug delivery, and photothermal effect. However, a review highlights the design and application of conductive biomaterials for wound healing and skin tissue engineering is lacking. In this review, the design and fabrication methods of conductive biomaterials with various structural forms including film, nanofiber, membrane, hydrogel, sponge, foam, and acellular dermal matrix for applications in wound healing and skin tissue engineering and the corresponding mechanism in promoting the healing process were summarized. The approaches that conductive biomaterials realize their great value in healing wounds via three main strategies (electrotherapy, wound dressing, and wound assessment) were reviewed. The application of conductive biomaterials as wound dressing when facing different wounds including acute wound and chronic wound (infected wound and diabetic wound) and for wound monitoring is discussed in detail. The challenges and perspectives in designing and developing multifunctional conductive biomaterials are proposed as well.
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Affiliation(s)
- Rui Yu
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Hualei Zhang
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of 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, People's Republic of China.
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China.
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Gelatin-Graphene Oxide Nanocomposite Hydrogels for Kluyveromyces lactis Encapsulation: Potential Applications in Probiotics and Bioreactor Packings. Biomolecules 2021; 11:biom11070922. [PMID: 34206397 PMCID: PMC8302002 DOI: 10.3390/biom11070922] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 06/02/2021] [Accepted: 06/07/2021] [Indexed: 12/19/2022] Open
Abstract
Nutraceutical formulations based on probiotic microorganisms have gained significant attention over the past decade due to their beneficial properties on human health. Yeasts offer some advantages over other probiotic organisms, such as immunomodulatory properties, anticancer effects and effective suppression of pathogens. However, one of the main challenges for their oral administration is ensuring that cell viability remains high enough for a sustained therapeutic effect while avoiding possible substrate inhibition issues as they transit through the gastrointestinal (GI) tract. Here, we propose addressing these issues using a probiotic yeast encapsulation strategy, Kluyveromyces lactis, based on gelatin hydrogels doubly cross-linked with graphene oxide (GO) and glutaraldehyde to form highly resistant nanocomposite encapsulates. GO was selected here as a reinforcement agent due to its unique properties, including superior solubility and dispersibility in water and other solvents, high biocompatibility, antimicrobial activity, and response to electrical fields in its reduced form. Finally, GO has been reported to enhance the mechanical properties of several materials, including natural and synthetic polymers and ceramics. The synthesized GO-gelatin nanocomposite hydrogels were characterized in morphological, swelling, mechanical, thermal, and rheological properties and their ability to maintain probiotic cell viability. The obtained nanocomposites exhibited larger pore sizes for successful cell entrapment and proliferation, tunable degradation rates, pH-dependent swelling ratio, and higher mechanical stability and integrity in simulated GI media and during bioreactor operation. These results encourage us to consider the application of the obtained nanocomposites to not only formulate high-performance nutraceuticals but to extend it to tissue engineering, bioadhesives, smart coatings, controlled release systems, and bioproduction of highly added value metabolites.
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Adorinni S, Rozhin P, Marchesan S. Smart Hydrogels Meet Carbon Nanomaterials for New Frontiers in Medicine. Biomedicines 2021; 9:570. [PMID: 34070138 PMCID: PMC8158376 DOI: 10.3390/biomedicines9050570] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/13/2021] [Accepted: 05/15/2021] [Indexed: 12/12/2022] Open
Abstract
Carbon nanomaterials include diverse structures and morphologies, such as fullerenes, nano-onions, nanodots, nanodiamonds, nanohorns, nanotubes, and graphene-based materials. They have attracted great interest in medicine for their high innovative potential, owing to their unique electronic and mechanical properties. In this review, we describe the most recent advancements in their inclusion in hydrogels to yield smart systems that can respond to a variety of stimuli. In particular, we focus on graphene and carbon nanotubes, for applications that span from sensing and wearable electronics to drug delivery and tissue engineering.
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Affiliation(s)
- Simone Adorinni
- Chemical and Pharmaceutical Sciences Department, University of Trieste, 34127 Trieste, Italy; (S.A.); (P.R.)
| | - Petr Rozhin
- Chemical and Pharmaceutical Sciences Department, University of Trieste, 34127 Trieste, Italy; (S.A.); (P.R.)
| | - Silvia Marchesan
- Chemical and Pharmaceutical Sciences Department, University of Trieste, 34127 Trieste, Italy; (S.A.); (P.R.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), University of Trieste, 34127 Trieste, Italy
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Patil TV, Patel DK, Dutta SD, Ganguly K, Lim KT. Graphene Oxide-Based Stimuli-Responsive Platforms for Biomedical Applications. Molecules 2021; 26:2797. [PMID: 34068529 PMCID: PMC8126026 DOI: 10.3390/molecules26092797] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 04/30/2021] [Accepted: 05/05/2021] [Indexed: 01/13/2023] Open
Abstract
Graphene is a two-dimensional sp2 hybridized carbon material that has attracted tremendous attention for its stimuli-responsive applications, owing to its high surface area and excellent electrical, optical, thermal, and mechanical properties. The physicochemical properties of graphene can be tuned by surface functionalization. The biomedical field pays special attention to stimuli-responsive materials due to their responsive abilities under different conditions. Stimuli-responsive materials exhibit great potential in changing their behavior upon exposure to external or internal factors, such as pH, light, electric field, magnetic field, and temperature. Graphene-based materials, particularly graphene oxide (GO), have been widely used in stimuli-responsive applications due to their superior biocompatibility compared to other forms of graphene. GO has been commonly utilized in tissue engineering, bioimaging, biosensing, cancer therapy, and drug delivery. GO-based stimuli-responsive platforms for wound healing applications have not yet been fully explored. This review describes the effects of different stimuli-responsive factors, such as pH, light, temperature, and magnetic and electric fields on GO-based materials and their applications. The wound healing applications of GO-based materials is extensively discussed with cancer therapy and drug delivery.
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Affiliation(s)
- Tejal V. Patil
- Department of Biosystems Engineering, Institute of Forest Science, Kangwon National University, Chuncheon 24341, Korea; (T.V.P.); (D.K.P.); (S.D.D.); (K.G.)
- Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon 24341, Korea
| | - Dinesh K. Patel
- Department of Biosystems Engineering, Institute of Forest Science, Kangwon National University, Chuncheon 24341, Korea; (T.V.P.); (D.K.P.); (S.D.D.); (K.G.)
| | - Sayan Deb Dutta
- Department of Biosystems Engineering, Institute of Forest Science, Kangwon National University, Chuncheon 24341, Korea; (T.V.P.); (D.K.P.); (S.D.D.); (K.G.)
| | - Keya Ganguly
- Department of Biosystems Engineering, Institute of Forest Science, Kangwon National University, Chuncheon 24341, Korea; (T.V.P.); (D.K.P.); (S.D.D.); (K.G.)
| | - Ki-Taek Lim
- Department of Biosystems Engineering, Institute of Forest Science, Kangwon National University, Chuncheon 24341, Korea; (T.V.P.); (D.K.P.); (S.D.D.); (K.G.)
- Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon 24341, Korea
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Zare P, Aleemardani M, Seifalian A, Bagher Z, Seifalian AM. Graphene Oxide: Opportunities and Challenges in Biomedicine. NANOMATERIALS 2021; 11:nano11051083. [PMID: 33922153 PMCID: PMC8143506 DOI: 10.3390/nano11051083] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/13/2021] [Accepted: 04/16/2021] [Indexed: 02/07/2023]
Abstract
Desirable carbon allotropes such as graphene oxide (GO) have entered the field with several biomedical applications, owing to their exceptional physicochemical and biological features, including extreme strength, found to be 200 times stronger than steel; remarkable light weight; large surface-to-volume ratio; chemical stability; unparalleled thermal and electrical conductivity; and enhanced cell adhesion, proliferation, and differentiation properties. The presence of functional groups on graphene oxide (GO) enhances further interactions with other molecules. Therefore, recent studies have focused on GO-based materials (GOBMs) rather than graphene. The aim of this research was to highlight the physicochemical and biological properties of GOBMs, especially their significance to biomedical applications. The latest studies of GOBMs in biomedical applications are critically reviewed, and in vitro and preclinical studies are assessed. Furthermore, the challenges likely to be faced and prospective future potential are addressed. GOBMs, a high potential emerging material, will dominate the materials of choice in the repair and development of human organs and medical devices. There is already great interest among academics as well as in pharmaceutical and biomedical industries.
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Affiliation(s)
- Pariya Zare
- Department of Chemical Engineering, University of Tehran, Tehran 1417466191, Iran;
| | - Mina Aleemardani
- Biomaterials and Tissue Engineering Group, Department of Materials Science and Engineering, Kroto Research Institute, The University of Sheffield, Sheffield S3 7HQ, UK;
| | - Amelia Seifalian
- Watford General Hospital, Watford WD18 0HB, UK;
- UCL Medical School, University College London, London WC1E 6BT, UK
| | - Zohreh Bagher
- ENT and Head and Neck Research Centre and Department, Hazrat Rasoul Akram Hospital, The Five Senses Health Institute, Iran University of Medical Sciences, Tehran 1445413131, Iran
- Correspondence: (Z.B.); (A.M.S.); Tel.: +44-(0)-2076911122 (A.M.S.)
| | - Alexander M. Seifalian
- Nanotechnology and Regenerative Medicine Commercialisation Centre (NanoRegMed Ltd.), London BioScience Innovation Centre, London NW1 0NH, UK
- Correspondence: (Z.B.); (A.M.S.); Tel.: +44-(0)-2076911122 (A.M.S.)
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15
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Cirillo G, Pantuso E, Curcio M, Vittorio O, Leggio A, Iemma F, De Filpo G, Nicoletta FP. Alginate Bioconjugate and Graphene Oxide in Multifunctional Hydrogels for Versatile Biomedical Applications. Molecules 2021; 26:1355. [PMID: 33802608 PMCID: PMC7961670 DOI: 10.3390/molecules26051355] [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: 02/02/2021] [Revised: 02/27/2021] [Accepted: 02/28/2021] [Indexed: 12/15/2022] Open
Abstract
In this work, we combined electrically-conductive graphene oxide and a sodium alginate-caffeic acid conjugate, acting as a functional element, in an acrylate hydrogel network to obtain multifunctional materials designed to perform multiple tasks in biomedical research. The hybrid material was found to be well tolerated by human fibroblast lung cells (MRC-5) (viability higher than 94%) and able to modify its swelling properties upon application of an external electric field. Release experiments performed using lysozyme as the model drug, showed a pH and electro-responsive behavior, with higher release amounts and rated in physiological vs. acidic pH. Finally, the retainment of the antioxidant properties of caffeic acid upon conjugation and polymerization processes (Trolox equivalent antioxidant capacity values of 1.77 and 1.48, respectively) was used to quench the effect of hydrogen peroxide in a hydrogel-assisted lysozyme crystallization procedure.
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Affiliation(s)
- Giuseppe Cirillo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende (CS), Italy; (M.C.); (A.L.); (F.I.); (F.P.N.)
| | - Elvira Pantuso
- National Research Council of Italy (CNR)—Institute on Membrane Technology (ITM), 87036 Rende (CS), Italy;
| | - Manuela Curcio
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende (CS), Italy; (M.C.); (A.L.); (F.I.); (F.P.N.)
| | - Orazio Vittorio
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney, NSW 2031, Australia;
- School of Women’s and Children’s Health, Faculty of Medicine, UNSW Sydney, Sydney, NSW 2052, Australia
- ARC Centre of Excellence for Convergent BioNano Science and Technology, Australian Centre for NanoMedicine, UNSW Sydney, Sydney, NSW 2052, Australia
| | - Antonella Leggio
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende (CS), Italy; (M.C.); (A.L.); (F.I.); (F.P.N.)
| | - Francesca Iemma
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende (CS), Italy; (M.C.); (A.L.); (F.I.); (F.P.N.)
| | - Giovanni De Filpo
- Department of Chemistry and Chemical Technologies, University of Calabria, 87036 Rende (CS), Italy;
| | - Fiore Pasquale Nicoletta
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende (CS), Italy; (M.C.); (A.L.); (F.I.); (F.P.N.)
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16
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Korupalli C, Li H, Nguyen N, Mi F, Chang Y, Lin Y, Sung H. Conductive Materials for Healing Wounds: Their Incorporation in Electroactive Wound Dressings, Characterization, and Perspectives. Adv Healthc Mater 2021; 10:e2001384. [PMID: 33274846 DOI: 10.1002/adhm.202001384] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 11/06/2020] [Indexed: 12/11/2022]
Abstract
The use of conductive materials to promote the activity of electrically responsive cells is an effective means of accelerating wound healing. This article focuses on recent advancements in conductive materials, with emphasis on overviewing their incorporation with non-conducting polymers to fabricate electroactive wound dressings. The characteristics of these electroactive dressings are deliberated, and the mechanisms on how they accelerate the wound healing process are discussed. Potential directions for the future development of electroactive wound dressings and their potential in monitoring the course of wound healing in vivo concomitantly are also proposed.
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Affiliation(s)
- Chiranjeevi Korupalli
- Department of Chemical Engineering and Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu Taiwan 300 ROC
| | - Hui Li
- Department of Chemical Engineering and Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu Taiwan 300 ROC
| | - Nhien Nguyen
- Department of Chemical Engineering and Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu Taiwan 300 ROC
| | - Fwu‐Long Mi
- Department of Biochemistry and Molecular Cell Biology School of Medicine College of Medicine Taipei Medical University Taipei Taiwan 110 ROC
| | - Yen Chang
- Taipei Tzu Chi Hospital Buddhist Tzu Chi Medical Foundation and School of Medicine Tzu Chi University Hualien Taiwan 970 ROC
| | - Yu‐Jung Lin
- Department of Chemical Engineering and Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu Taiwan 300 ROC
- Research Center for Applied Sciences Academia Sinica Taipei Taiwan 11529 ROC
| | - Hsing‐Wen Sung
- Department of Chemical Engineering and Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu Taiwan 300 ROC
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17
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Bellet P, Gasparotto M, Pressi S, Fortunato A, Scapin G, Mba M, Menna E, Filippini F. Graphene-Based Scaffolds for Regenerative Medicine. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:404. [PMID: 33562559 PMCID: PMC7914745 DOI: 10.3390/nano11020404] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/29/2021] [Accepted: 02/01/2021] [Indexed: 12/20/2022]
Abstract
Leading-edge regenerative medicine can take advantage of improved knowledge of key roles played, both in stem cell fate determination and in cell growth/differentiation, by mechano-transduction and other physicochemical stimuli from the tissue environment. This prompted advanced nanomaterials research to provide tissue engineers with next-generation scaffolds consisting of smart nanocomposites and/or hydrogels with nanofillers, where balanced combinations of specific matrices and nanomaterials can mediate and finely tune such stimuli and cues. In this review, we focus on graphene-based nanomaterials as, in addition to modulating nanotopography, elastic modulus and viscoelastic features of the scaffold, they can also regulate its conductivity. This feature is crucial to the determination and differentiation of some cell lineages and is of special interest to neural regenerative medicine. Hereafter we depict relevant properties of such nanofillers, illustrate how problems related to their eventual cytotoxicity are solved via enhanced synthesis, purification and derivatization protocols, and finally provide examples of successful applications in regenerative medicine on a number of tissues.
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Affiliation(s)
- Pietro Bellet
- Department of Biology, University of Padua, 35131 Padua, Italy; (P.B.); (M.G.)
| | - Matteo Gasparotto
- Department of Biology, University of Padua, 35131 Padua, Italy; (P.B.); (M.G.)
| | - Samuel Pressi
- Department of Chemical Sciences, University of Padua & INSTM, 35131 Padua, Italy; (S.P.); (A.F.)
| | - Anna Fortunato
- Department of Chemical Sciences, University of Padua & INSTM, 35131 Padua, Italy; (S.P.); (A.F.)
| | - Giorgia Scapin
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
| | - Miriam Mba
- Department of Chemical Sciences, University of Padua & INSTM, 35131 Padua, Italy; (S.P.); (A.F.)
| | - Enzo Menna
- Department of Chemical Sciences, University of Padua & INSTM, 35131 Padua, Italy; (S.P.); (A.F.)
| | - Francesco Filippini
- Department of Biology, University of Padua, 35131 Padua, Italy; (P.B.); (M.G.)
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18
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Chen Y, Chen N, Feng X. The role of internal and external stimuli in the rational design of skin-specific drug delivery systems. Int J Pharm 2021; 592:120081. [PMID: 33189810 DOI: 10.1016/j.ijpharm.2020.120081] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 10/15/2020] [Accepted: 11/08/2020] [Indexed: 12/12/2022]
Abstract
The concept of skin-specific drug delivery with a spatio-temporal control has just recently received concerns in dermatology. Inspired by the progress in smart materials and their perspective application in medicine science, development of stimuli responsive drug delivery systems with skin-specificity has become possible, which has led to a new era in the localized treatment of skin diseases. This review highlights both the internal and external stimuli that have been employed in this field, with a focus on their implication on the rational design of pharmaceutical formulations, especially those nanoscale drug carriers that are able to provide release of payloads with a precise spatio-temporal control in response to specific stimuli. Also, the strategy of dual stimuli responsive drug delivery systems will be discussed for further improvement of the efficacy of skin drug delivery. The prominent examples of the established approaches are described as comprehensive and current as possible. The review is expected to provide some inspiration for utilizing different stimuli for realizing the site-specific and on-demand drug delivery to the skin.
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Affiliation(s)
- Yang Chen
- Department of Pharmaceutics, School of Pharmacy, China Medical University, Shenyang, No.77 Puhe Road, Shenyang North New Area, Shenyang 110122, China.
| | - Naiying Chen
- Department of Pharmaceutics, School of Pharmacy, China Medical University, Shenyang, No.77 Puhe Road, Shenyang North New Area, Shenyang 110122, China
| | - Xun Feng
- Department of Sanitary Inspection, School of Public Health, Shenyang Medical College, No.146 Yellow River North Street, Shenyang 110034, China
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19
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Liu T, Li Y, Chen X, Zhao X, Wang J, Zhang D. Fabrication of pH-sensitive graphene oxide-Benazepril carrier as biosafety controlled release systems. J Appl Biomater Funct Mater 2020; 18:2280800020963471. [PMID: 33270494 DOI: 10.1177/2280800020963471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
A novel graphene oxide (GO)-based carrier was fabricated for the controlled release of Benazepril (BENA). Freeze dried samples of GO-BENA carrier were prepared for controlled drug release at different pHs (pH = 2, 7, and 10) and release kinetics indicate BENA desorption from GO is by Fickian diffusion. The BENA yield from the carrier amounted to ~55% of the adsorbed material in a strongly acidic medium after 50 h. Binding fractions of BENA to 10 mg/L GO was determined for different solution concentrations of the drug. In vitro assays of cell proliferation (WST-1 kit), cell structural integrity (LDH kit) and flow cytometric indicators of necrosis in three different cell lines (CACO-2, SGC-7901, and primary mouse hepatic fibroblast) all demonstrated that the GO carrier had a good biocompatibility. The pH-dependent release sensitivity of the GO-based carrier suggests that it is a potential candidate for use in the controlled release of drugs in the acidic environment of the stomach.
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Affiliation(s)
- Tianxiong Liu
- College of Liberal Arts and Science, National University of Defense Technology, Changsha, China
| | - Yujiao Li
- College of Liberal Arts and Science, National University of Defense Technology, Changsha, China
| | - Xianzhe Chen
- College of Liberal Arts and Science, National University of Defense Technology, Changsha, China
| | - Xiaoming Zhao
- College of Liberal Arts and Science, National University of Defense Technology, Changsha, China
| | - Jianfang Wang
- College of Liberal Arts and Science, National University of Defense Technology, Changsha, China
| | - Dongyi Zhang
- College of Liberal Arts and Science, National University of Defense Technology, Changsha, China
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20
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Zheng T, Huang Y, Zhang X, Cai Q, Deng X, Yang X. Mimicking the electrophysiological microenvironment of bone tissue using electroactive materials to promote its regeneration. J Mater Chem B 2020; 8:10221-10256. [PMID: 33084727 DOI: 10.1039/d0tb01601b] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The process of bone tissue repair and regeneration is complex and requires a variety of physiological signals, including biochemical, electrical and mechanical signals, which collaborate to ensure functional recovery. The inherent piezoelectric properties of bone tissues can convert mechanical stimulation into electrical effects, which play significant roles in bone maturation, remodeling and reconstruction. Electroactive materials, including conductive materials, piezoelectric materials and electret materials, can simulate the physiological and electrical microenvironment of bone tissue, thereby promoting bone regeneration and reconstruction. In this paper, the structures and performances of different types of electroactive materials and their applications in the field of bone repair and regeneration are reviewed, particularly by providing the results from in vivo evaluations using various animal models. Their advantages and disadvantages as bone repair materials are discussed, and the methods for tuning their performances are also described, with the aim of providing an up-to-date account of the proposed topics.
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Affiliation(s)
- Tianyi Zheng
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
| | - Yiqian Huang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
| | - Xuehui Zhang
- Department of Dental Materials & Dental Medical Devices Testing Center, Peking University School and Hospital of Stomatology, Beijing 100081, P. R. China
| | - Qing Cai
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
| | - Xuliang Deng
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing 100081, P. R. China
| | - Xiaoping Yang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
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21
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Jiang Y, Wang Y, Li Q, Yu C, Chu W. Natural Polymer-based Stimuli-responsive Hydrogels. Curr Med Chem 2020; 27:2631-2657. [PMID: 31755377 DOI: 10.2174/0929867326666191122144916] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 10/07/2019] [Accepted: 11/02/2019] [Indexed: 02/04/2023]
Abstract
The abilities of intelligent polymer hydrogels to change their structure and volume phase in response to external stimuli have provided new possibilities for various advanced technologies and great research and application potentials in the medical field. The natural polymer-based hydrogels have the advantages of environment-friendliness, rich sources and good biocompatibility. Based on their responsiveness to external stimuli, the natural polymer-based hydrogels can be classified into the temperature-responsive hydrogel, pH-responsive hydrogel, light-responsive hydrogel, electricresponsive hydrogel, redox-responsive hydrogel, enzyme-responsive hydrogel, magnetic-responsive hydrogel, multi-responsive hydrogel, etc. In this review, we have compiled some recent studies on natural polymer-based stimuli-responsive hydrogels, especially the hydrogels prepared from polysaccharides. The preparation methods, properties and applications of these hydrogels in the medical field are highlighted.
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Affiliation(s)
- Yuheng Jiang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China.,CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, China.,Center for Nanochemistry, Peking University, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Ying Wang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Qin Li
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Chen Yu
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Wanli Chu
- Department of Burn and Plastic Surgery, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China
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22
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When polymers meet carbon nanostructures: expanding horizons in cancer therapy. Future Med Chem 2020; 11:2205-2231. [PMID: 31538523 DOI: 10.4155/fmc-2018-0540] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The development of hybrid materials, which combine inorganic with organic materials, is receiving increasing attention by researchers. As a consequence of carbon nanostructures high chemical versatility, they exhibit enormous potential for new highly engineered multifunctional nanotherapeutic agents for cancer therapy. Whereas many groups are working on drug delivery systems for chemotherapy, the use of carbon nanohybrids for radiotherapy is rarely applied. Thus, nanotechnology offers a wide range of solutions to overcome the current obstacles of conventional chemo- and/or radiotherapies. Within this review, the structure and properties of carbon nanostructures (carbon nanotubes, nanographene oxide) functionalized preferentially with different types of polymers (synthetic, natural) are discussed. In short, synthesis approaches, toxicity investigations and anticancer efficacy of different carbon nanohybrids are described.
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23
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Optimal immobilization of trypsin from the spleen of albacore tuna (Thunnus alalunga) and its characterization. Int J Biol Macromol 2020; 143:462-471. [DOI: 10.1016/j.ijbiomac.2019.10.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 10/02/2019] [Accepted: 10/02/2019] [Indexed: 11/20/2022]
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24
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Duru Kamacı U, Kamacı M. Preparation of polyvinyl alcohol, chitosan and polyurethane-based pH-sensitive and biodegradable hydrogels for controlled drug release applications. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2019.1670180] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Umran Duru Kamacı
- Department of Chemistry, Faculty of Arts and Sciences, Yıldız Technical University, Esenler, Istanbul, Turkey
| | - Musa Kamacı
- Piri Reis University, Tuzla, Istanbul, Turkey
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25
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Pinnaratip R, Bhuiyan MSA, Meyers K, Rajachar RM, Lee BP. Multifunctional Biomedical Adhesives. Adv Healthc Mater 2019; 8:e1801568. [PMID: 30945459 PMCID: PMC6636851 DOI: 10.1002/adhm.201801568] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 02/07/2019] [Indexed: 12/21/2022]
Abstract
Currently available biomedical adhesives are mainly engineered to have one function (i.e., providing mechanical support for the repaired tissue). To improve the performance of existing bioadhesives and broaden their applications in medicine, numerous multifunctional bioadhesives are reported in the literature. These adhesives can be categorized as passive or active by design. Passive multifunctional bioadhesives contain inherent compositions and structural designs that can carry out additional functions without added external influences. These adhesives exhibit new functionalities such as antimicrobial properties, self-healing abilities, the ability to promote cellular ingrowth, and the ability to be reshaped. Conversely, active multifunctional bioadhesives respond to environmental changes (e.g., pH, temperature, electricity, light, and biomolecule concentration), which initiate a change in the adhesive to release encapsulated drugs or to activate or deactivate the bioadhesive for interfacial binding. This review article highlights recent advances in multifunctional bioadhesives.
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Affiliation(s)
- Rattapol Pinnaratip
- Department of Biomedical Engineering, Michigan Technological University, Houghton, Michigan 49931
| | - Md. Saleh Akram Bhuiyan
- Department of Biomedical Engineering, Michigan Technological University, Houghton, Michigan 49931
| | - Kaylee Meyers
- Department of Biomedical Engineering, Michigan Technological University, Houghton, Michigan 49931
| | - Rupak M. Rajachar
- Department of Biomedical Engineering, Michigan Technological University, Houghton, Michigan 49931
| | - Bruce P. Lee
- Department of Biomedical Engineering, Michigan Technological University, Houghton, Michigan 49931
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di Luca M, Curcio M, Valli E, Cirillo G, Voli F, Butini ME, Farfalla A, Pantuso E, Leggio A, Nicoletta FP, Tavanti A, Iemma F, Vittorio O. Combining antioxidant hydrogels with self-assembled microparticles for multifunctional wound dressings. J Mater Chem B 2019. [DOI: 10.1039/c9tb00871c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A multi-functional composite to be employed as a dressing material was prepared by combining hydrogel and microparticle systems.
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27
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Electric field-responsive nanoparticles and electric fields: physical, chemical, biological mechanisms and therapeutic prospects. Adv Drug Deliv Rev 2019; 138:56-67. [PMID: 30414494 DOI: 10.1016/j.addr.2018.10.017] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 10/05/2018] [Accepted: 10/31/2018] [Indexed: 12/18/2022]
Abstract
Electric fields are among physical stimuli that have revolutionized therapy. Occurring endogenously or exogenously, the electric field can be used as a trigger for controlled drug release from electroresponsive drug delivery systems, can stimulate wound healing and cell proliferation, may enhance endocytosis or guide stem cell differentiation. Electric field pulses may be applied to induce cell fusion, can increase the penetration of therapeutic agents into cells, or can be applied as a standalone therapy to ablate tumors. This review describes the main therapeutic trends and overviews the main physical, chemical and biological mechanisms underlying the actions of electric fields. Overall, the electric field can be used in therapeutic approaches in several ways. The electric field can act on drug carriers, cells and tissues. Understanding the multiple effects of this powerful tool will help harnessing its full therapeutic potential in an efficient and safe way.
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