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P CL, L M, Jhajharia SK, W A, 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; 272:132589. [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] [MESH Headings] [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 graphite 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 the advantage of facilitating face-to-edge assembly in the hydrogel leading to better dispersion than 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)
- Chithra Lekha P
- Centre for Clinical and Translational Research, 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 Physics, Dr MGR Educational and Research Institute, Madhuravoyal, Chennai 600 095, Tamil Nadu, INDIA.
| | - Marini L
- Centre for Nanoscience and Technology, AC Tech Campus, Anna University, Chennai 600 025, Tamil Nadu, India
| | - Suman K Jhajharia
- Centre for Clinical and Translational Research, 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
| | - Aadinath W
- 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
- Centre for Clinical and Translational Research, 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
- Centre for Clinical and Translational Research, 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, Chennai, Tamil Nadu 600 095, INDIA
| | - Madhan Jeyaraman
- Department of Orthopaedics, ACS Medical College and Hospital, Dr MGR Educational and Research Institute, Chennai, Tamil Nadu 600 077, INDIA
| | - Roop L Mahajan
- Department of Mechanical Engineering, Department of Materials Science and Engineering, Virginia Tech, Blacksburg, VA 24061, USA.
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2
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Cao H, Zhang X, Wang H, Ding B, Ge S, Zhao J. Effects of Graphene-Based Nanomaterials on Microorganisms and Soil Microbial Communities. Microorganisms 2024; 12:814. [PMID: 38674758 PMCID: PMC11051958 DOI: 10.3390/microorganisms12040814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 04/15/2024] [Accepted: 04/15/2024] [Indexed: 04/28/2024] Open
Abstract
The past decades have witnessed intensive research on the biological effects of graphene-based nanomaterials (GBNs) and the application of GBNs in different fields. The published literature shows that GBNs exhibit inhibitory effects on almost all microorganisms under pure culture conditions, and that this inhibitory effect is influenced by the microbial species, the GBN's physicochemical properties, the GBN's concentration, treatment time, and experimental surroundings. In addition, microorganisms exist in the soil in the form of microbial communities. Considering the complex interactions between different soil components, different microbial communities, and GBNs in the soil environment, the effects of GBNs on soil microbial communities are undoubtedly intertwined. Since bacteria and fungi are major players in terrestrial biogeochemistry, this review focuses on the antibacterial and antifungal performance of GBNs, their antimicrobial mechanisms and influencing factors, as well as the impact of this effect on soil microbial communities. This review will provide a better understanding of the effects of GBNs on microorganisms at both the individual and population scales, thus providing an ecologically safe reference for the release of GBNs to different soil environments.
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Affiliation(s)
- Huifen Cao
- College of Agriculture and Life Science, Shanxi Datong University, Datong 037009, China;
| | - Xiao Zhang
- Engineering Research Center of Coal-Based Ecological Carbon Sequestration Technology of the Ministry of Education, Key Laboratory of Graphene Forestry Application of National Forest and Grass Administration, Shanxi Datong University, Datong 037009, China; (B.D.); (J.Z.)
| | - Haiyan Wang
- College of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, China
| | - Baopeng Ding
- Engineering Research Center of Coal-Based Ecological Carbon Sequestration Technology of the Ministry of Education, Key Laboratory of Graphene Forestry Application of National Forest and Grass Administration, Shanxi Datong University, Datong 037009, China; (B.D.); (J.Z.)
| | - Sai Ge
- Center of Academic Journal, Shanxi Datong University, Datong 037009, China;
| | - Jianguo Zhao
- Engineering Research Center of Coal-Based Ecological Carbon Sequestration Technology of the Ministry of Education, Key Laboratory of Graphene Forestry Application of National Forest and Grass Administration, Shanxi Datong University, Datong 037009, China; (B.D.); (J.Z.)
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3
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Panigrahi AR, Sahu A, Yadav P, Beura SK, Singh J, Mondal K, Singh SK. Nanoinformatics based insights into the interaction of blood plasma proteins with carbon based nanomaterials: Implications for biomedical applications. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2024; 139:263-288. [PMID: 38448137 DOI: 10.1016/bs.apcsb.2023.11.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
In the past three decades, interest in using carbon-based nanomaterials (CBNs) in biomedical application has witnessed remarkable growth. Despite the rapid advancement, the translation of laboratory experimentation to clinical applications of nanomaterials is one of the major challenges. This might be attributed to poor understanding of bio-nano interface. Arguably, the most significant barrier is the complexity that arises by interplay of several factors like properties of nanomaterial (shape, size, surface chemistry), its interaction with suspending media (surface hydration and dehydration, surface reconstruction and release of free surface energy) and the interaction with biomolecules (conformational change in biomolecules, interaction with membrane and receptor). Tailoring a nanomaterial that minimally interacts with protein and lipids in the medium while effectively acts on target site in biological milieu has been very difficult. Computational methods and artificial intelligence techniques have displayed potential in effectively addressing this problem. Through predictive modelling and deep learning, computer-based methods have demonstrated the capability to create accurate models of interactions between nanoparticles and cell membranes, as well as the uptake of nanomaterials by cells. Computer-based simulations techniques enable these computational models to forecast how making particular alterations to a material's physical and chemical properties could enhance functional aspects, such as the retention of drugs, the process of cellular uptake and biocompatibility. We review the most recent progress regarding the bio-nano interface studies between the plasma proteins and CBNs with a special focus on computational simulations based on molecular dynamics and density functional theory.
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Affiliation(s)
| | - Abhinandana Sahu
- Department of Zoology, School of Basic Sciences, Central University of Punjab, Bathinda, Punjab, India
| | - Pooja Yadav
- Department of Zoology, School of Basic Sciences, Central University of Punjab, Bathinda, Punjab, India
| | - Samir Kumar Beura
- Department of Zoology, School of Basic Sciences, Central University of Punjab, Bathinda, Punjab, India
| | - Jyoti Singh
- Department of Applied Agriculture, School of Basic Sciences, Central University of Punjab, Bathinda, Punjab, India
| | | | - Sunil Kumar Singh
- Department of Zoology, School of Basic Sciences, Central University of Punjab, Bathinda, Punjab, India; Department of Biochemistry, School of Basic Sciences, Central University of Punjab, Bathinda, Punjab, India.
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4
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Papayannis DK, Papavasileiou KD, Melissas VS. A quantum mechanical approach to the oxidation mechanism of graphene oxide (GO). Heliyon 2024; 10:e24072. [PMID: 38298709 PMCID: PMC10827694 DOI: 10.1016/j.heliyon.2024.e24072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 12/20/2023] [Accepted: 01/03/2024] [Indexed: 02/02/2024] Open
Abstract
Elucidation of the reaction mechanism concerning the oxidation above the face and at the edge of a large, oxidized graphene (GO) cluster, namely C80H22O, by molecular oxygen in the first excited state (1Δg) was achieved with quantum mechanical calculations using the ONIOM two-layer method. Oxidation on the face of the aforementioned cluster leads to the formation of an ozone molecule, whereas oxygen molecule attack at the edge of the oxidized graphene surface either launches an ozonide -a five-membered ring species- formation during its outward approach or an 1,3-dioxetane -a four-membered ring species- production along its inward invasion. A detailed examination of the proposed pathways suggests that the ozonide formation should overcome almost one and a half times an adiabatic energy barrier with respect to the ozone production and is strongly exergonic by up to -50.1 kcal mol-1, supporting the experimental findings that both compounds are critically involved in the explosive deoxygenation of GO. On the other hand, the 1,3-dioxetane alternative pathway is considered even more exergonic, although it requires an overwhelming adiabatic energy barrier of 29.8 kcal mol-1 to accomplish its target.
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Affiliation(s)
- Dimitrios K. Papayannis
- Department of Material Science and Engineering, University of Ioannina, GR–451 10, Ioannina, Greece
| | - Konstantinos D. Papavasileiou
- Department of ChemoInformatics, NovaMechanics Ltd., CY-1070, Nicosia, Cyprus
- Division of Data Driven Innovation, Entelos Institute, CY-6059, Larnaca, Cyprus
- Department of ChemoInformatics, NovaMechanics MIKE., GR-185 45, Piraeus, Greece
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Ibrahim B, Akere TH, Chakraborty S, Valsami-Jones E, Ali-Boucetta H. Functionalized Gold Nanoparticles Suppress the Proliferation of Human Lung Alveolar Adenocarcinoma Cells by Deubiquitinating Enzymes Inhibition. ACS OMEGA 2023; 8:40622-40638. [PMID: 37929120 PMCID: PMC10620884 DOI: 10.1021/acsomega.3c05452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 10/06/2023] [Accepted: 10/11/2023] [Indexed: 11/07/2023]
Abstract
Functionalized gold nanoparticles (AuNPs) are widely used in therapeutic applications, but little is known regarding the impact of their surface functionalization in the process of toxicity against cancer cells. This study investigates the anticancer effects of 5 nm spherical AuNPs functionalized with tannate, citrate, and PVP on deubiquitinating enzymes (DUBs) in human lung alveolar adenocarcinoma (A549) cells. Our findings show that functionalized AuNPs reduce the cell viability in a concentration- and time-dependent manner as measured by modified lactate dehydrogenase (mLDH) and 3-[4,5-dimethylthiazole-2-yl]-2,5-diphenyltetrazolium bromide (MTT) assays. An increased generation of intracellular reactive oxygen species (ROS) and depletion of glutathione (GSH/GSSG) ratio was observed with the highest AuNP concentration of 10 μg/mL. The expression of DUBs such as ubiquitin specific proteases (USP7, USP8, and USP10) was slightly inhibited when treated with concentrations above 2.5 μg/mL. Moreover, functionalized AuNPs showed an inhibitory effect on protein kinase B/mammalian target of rapamycin (PI3K/AKT/mTOR) and wingless-related integration site (Wnt) signaling proteins, and this could further trigger mitochondrial related-apoptosis by the upregulation of caspase-3, caspase-9, and PARP in A549 cells. Furthermore, our study shows a mechanistic understanding of how functionalized AuNPs inhibit the DUBs, consequently suppressing cell proliferation, and can be modulated as an approach toward anticancer therapy. The study also warrants the need for future work to investigate the effect of functionalized AuNPs on DUB on other cancer cell lines both in vitro and in vivo.
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Affiliation(s)
- Bashiru Ibrahim
- Nanomedicine,
Drug Delivery & Nanotoxicology (NDDN) Lab, School of Pharmacy,
College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, U.K.
- School
of Geography, Earth and Environmental Sciences, College of Life and
Environmental Sciences, University of Birmingham, Birmingham B15 2TT, U.K.
| | - Taiwo Hassan Akere
- Nanomedicine,
Drug Delivery & Nanotoxicology (NDDN) Lab, School of Pharmacy,
College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, U.K.
- School
of Geography, Earth and Environmental Sciences, College of Life and
Environmental Sciences, University of Birmingham, Birmingham B15 2TT, U.K.
| | - Swaroop Chakraborty
- School
of Geography, Earth and Environmental Sciences, College of Life and
Environmental Sciences, University of Birmingham, Birmingham B15 2TT, U.K.
| | - Eugenia Valsami-Jones
- School
of Geography, Earth and Environmental Sciences, College of Life and
Environmental Sciences, University of Birmingham, Birmingham B15 2TT, U.K.
| | - Hanene Ali-Boucetta
- Nanomedicine,
Drug Delivery & Nanotoxicology (NDDN) Lab, School of Pharmacy,
College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, U.K.
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6
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Krasoń MZ, Paradowska A, Fronczek M, Lejawa M, Kamieńska N, Krejca M, Kolanowska A, Boncel S, Radomski MW. Stabilization of Graphene Oxide Dispersion in Plasma-like Isotonic Solution Containing Aggregating Concentrations of Bivalent Cations. Pharmaceutics 2023; 15:2495. [PMID: 37896255 PMCID: PMC10610486 DOI: 10.3390/pharmaceutics15102495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 10/04/2023] [Accepted: 10/07/2023] [Indexed: 10/29/2023] Open
Abstract
Graphene oxide's (GO) intravascular applications and biocompatibility are not fully explored yet, although it has been proposed as an anticancer drug transporter, antibacterial factor or component of wearable devices. Bivalent cations and the number of particles' atom layers, as well as their structural oxygen content and pH of the dispersion, all affect the GO size, shape, dispersibility and biological effects. Bovine serum albumin (BSA), an important blood plasma protein, is expected to improve GO dispersion stability in physiological concentrations of the precipitating calcium and magnesium cations to enable effective and safe tissue perfusion. METHODS Four types of GO commercially available aqueous dispersions (with different particle structures) were diluted, sonicated and studied in the presence of BSA and physiological cation concentrations. Nanoparticle populations sizes, electrical conductivity, zeta potential (Zetasizer NanoZS), structure (TEM and CryoTEM), functional groups content (micro titration) and dispersion pH were analyzed in consecutive preparation stages. RESULTS BSA effectively prevented the aggregation of GO in precipitating concentrations of physiological bivalent cations. The final polydispersity indexes were reduced from 0.66-0.91 to 0.36-0.43. The GO-containing isotonic dispersions were stable with the following Z-ave results: GO1 421.1 nm, GO2 382.6 nm, GO3 440.2 nm and GO4 490.1 nm. The GO behavior was structure-dependent. CONCLUSION BSA effectively stabilized four types of GO dispersions in an isotonic dispersion containing aggregating bivalent physiological cations.
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Affiliation(s)
- Marcin Z. Krasoń
- Silesian Park of Medical Technology Kardio-Med Silesia, 41-800 Zabrze, Poland; (A.P.); (M.F.); (M.L.)
- Cardiac Surgery Department, Medical University of Łódź, 90-419 Łódź, Poland;
- Department of Cardiac, Vascular and Endovascular Surgery and Transplantology, Medical University of Silesia in Katowice, Silesian Center for Heart Diseases in Zabrze, 41-800 Zabrze, Poland;
| | - Anna Paradowska
- Silesian Park of Medical Technology Kardio-Med Silesia, 41-800 Zabrze, Poland; (A.P.); (M.F.); (M.L.)
| | - Martyna Fronczek
- Silesian Park of Medical Technology Kardio-Med Silesia, 41-800 Zabrze, Poland; (A.P.); (M.F.); (M.L.)
- Department of Pharmacology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 40-055 Katowice, Poland
| | - Mateusz Lejawa
- Silesian Park of Medical Technology Kardio-Med Silesia, 41-800 Zabrze, Poland; (A.P.); (M.F.); (M.L.)
- Department of Pharmacology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 40-055 Katowice, Poland
| | - Natalia Kamieńska
- Department of Cardiac, Vascular and Endovascular Surgery and Transplantology, Medical University of Silesia in Katowice, Silesian Center for Heart Diseases in Zabrze, 41-800 Zabrze, Poland;
| | - Michał Krejca
- Cardiac Surgery Department, Medical University of Łódź, 90-419 Łódź, Poland;
| | - Anna Kolanowska
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Faculty of Chemistry, Silesian University of Technology, 44-100 Gliwice, Poland; (A.K.); (S.B.)
| | - Sławomir Boncel
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Faculty of Chemistry, Silesian University of Technology, 44-100 Gliwice, Poland; (A.K.); (S.B.)
- Centre for Organic and Nanohybrid Electronics, Silesian University of Technology, 44-100 Gliwice, Poland
| | - Marek W. Radomski
- Department of Anatomy, Physiology and Pharmacology, College of Medicine, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada;
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Suter JL, Vassaux M, Coveney PV. Large-Scale Molecular Dynamics Elucidates the Mechanics of Reinforcement in Graphene-Based Composites. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2302237. [PMID: 37376866 DOI: 10.1002/adma.202302237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/10/2023] [Indexed: 06/29/2023]
Abstract
Using very large-scale classical molecular dynamics, the mechanics of nano-reinforcement of graphene-based nanocomposites are examined. Simulations show that significant quantities of large, defect-free, and predominantly flat graphene flakes are required for successful enhancement of materials properties in excellent agreement with experimental and proposed continuum shear-lag theories. The critical lengths for enhancement are approximately 500 nm for graphene and 300 nm and for graphene oxide (GO). The reduction of Young's modulus in GO results in a much smaller enhancement of the composite's Young's modulus. The simulations reveal that the flakes should be aligned and planar for optimal reinforcement. Undulations substantially degrade the enhancement of materials properties.
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Affiliation(s)
- James L Suter
- Centre for Computational Science - University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Maxime Vassaux
- Centre for Computational Science - University College London, 20 Gordon Street, London, WC1H 0AJ, UK
- Institut de Physique de Rennes - UMR 6251 CNRS, Université de Rennes, Rennes, 35000, France
| | - Peter V Coveney
- Centre for Computational Science - University College London, 20 Gordon Street, London, WC1H 0AJ, UK
- Advanced Research Computing Centre, University College London, London, WC1E 6BT, UK
- Computational Science Laboratory, Institute for Informatics, Faculty of Science, University of Amsterdam, Amsterdam, 1098XH, The Netherlands
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8
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Sadri B, Gao W. Fibrous wearable and implantable bioelectronics. APPLIED PHYSICS REVIEWS 2023; 10:031303. [PMID: 37576610 PMCID: PMC10364553 DOI: 10.1063/5.0152744] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 06/20/2023] [Indexed: 08/15/2023]
Abstract
Fibrous wearable and implantable devices have emerged as a promising technology, offering a range of new solutions for minimally invasive monitoring of human health. Compared to traditional biomedical devices, fibers offer a possibility for a modular design compatible with large-scale manufacturing and a plethora of advantages including mechanical compliance, breathability, and biocompatibility. The new generation of fibrous biomedical devices can revolutionize easy-to-use and accessible health monitoring systems by serving as building blocks for most common wearables such as fabrics and clothes. Despite significant progress in the fabrication, materials, and application of fibrous biomedical devices, there is still a notable absence of a comprehensive and systematic review on the subject. This review paper provides an overview of recent advancements in the development of fibrous wearable and implantable electronics. We categorized these advancements into three main areas: manufacturing processes, platforms, and applications, outlining their respective merits and limitations. The paper concludes by discussing the outlook and challenges that lie ahead for fiber bioelectronics, providing a holistic view of its current stage of development.
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Affiliation(s)
- Behnam Sadri
- Andrew and Peggy Cherng Department of Medical Engineering, Division of Engineering and Applied Science, California Institute of Technology; Pasadena, California 91125, USA
| | - Wei Gao
- Andrew and Peggy Cherng Department of Medical Engineering, Division of Engineering and Applied Science, California Institute of Technology; Pasadena, California 91125, USA
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9
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Bhatt P, Kumar V, Subramaniyan V, Nagarajan K, Sekar M, Chinni SV, Ramachawolran G. Plasma Modification Techniques for Natural Polymer-Based Drug Delivery Systems. Pharmaceutics 2023; 15:2066. [PMID: 37631280 PMCID: PMC10459779 DOI: 10.3390/pharmaceutics15082066] [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: 04/14/2023] [Revised: 06/14/2023] [Accepted: 06/23/2023] [Indexed: 08/27/2023] Open
Abstract
Natural polymers have attracted significant attention in drug delivery applications due to their biocompatibility, biodegradability, and versatility. However, their surface properties often limit their use as drug delivery vehicles, as they may exhibit poor wettability, weak adhesion, and inadequate drug loading and release. Plasma treatment is a promising surface modification technique that can overcome these limitations by introducing various functional groups onto the natural polymer surface, thus enhancing its physicochemical and biological properties. This review provides a critical overview of recent advances in the plasma modification of natural polymer-based drug delivery systems, with a focus on controllable plasma treatment techniques. The review covers the fundamental principles of plasma generation, process control, and characterization of plasma-treated natural polymer surfaces. It discusses the various applications of plasma-modified natural polymer-based drug delivery systems, including improved biocompatibility, controlled drug release, and targeted drug delivery. The challenges and emerging trends in the field of plasma modification of natural polymer-based drug delivery systems are also highlighted. The review concludes with a discussion of the potential of controllable plasma treatment as a versatile and effective tool for the surface functionalization of natural polymer-based drug delivery systems.
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Affiliation(s)
- Pankaj Bhatt
- KIET School of Pharmacy, KIET Group of Institutions, Ghaziabad 201206, Uttar Pradesh, India; (P.B.)
- Department of Pharmaceutical Sciences, Gurukul Kangri (Deemed to Be University), Haridwar 249404, Uttarakhand, India;
| | - Vipin Kumar
- Department of Pharmaceutical Sciences, Gurukul Kangri (Deemed to Be University), Haridwar 249404, Uttarakhand, India;
| | - Vetriselvan Subramaniyan
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University, Jalan Lagoon Selatan, Bandar Sunway 47500, Selangor Darul Ehsan, Malaysia
- Center for Transdisciplinary Research, Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 600077, Tamil Nadu, India
| | - Kandasamy Nagarajan
- KIET School of Pharmacy, KIET Group of Institutions, Ghaziabad 201206, Uttar Pradesh, India; (P.B.)
| | - Mahendran Sekar
- School of Pharmacy, Monash University Malaysia, Subang Jaya 47500, Selangor, Malaysia
| | - Suresh V. Chinni
- Department of Biochemistry, Faculty of Medicine, Bioscience, and Nursing, MAHSA University, Jenjarom 42610, Selangor, Malaysia
- Department of Periodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 602117, Tamil Nadu, India
| | - Gobinath Ramachawolran
- Department of Foundation, RCSI & UCD Malaysia Campus, No. 4, Jalan Sepoy Lines, Georgetown 10450, Pulau Pinang, Malaysia
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10
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Kim DH, Kim MJ, Kwak SY, Jeong J, Choi D, Choi SW, Ryu J, Kang KS. Bioengineered liver crosslinked with nano-graphene oxide enables efficient liver regeneration via MMP suppression and immunomodulation. Nat Commun 2023; 14:801. [PMID: 36781854 PMCID: PMC9925774 DOI: 10.1038/s41467-023-35941-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 01/09/2023] [Indexed: 02/15/2023] Open
Abstract
Decellularized extracellular matrix scaffold, widely utilized for organ engineering, often undergoes matrix decomposition after transplantation and produces byproducts that cause inflammation, leading to clinical failure. Here we propose a strategy using nano-graphene oxide to modify the biophysical properties of decellularized liver scaffolds. Notably, we demonstrate that scaffolds crosslinked with nano-graphene oxide show high resistance to enzymatic degradation via direct inhibition of matrix metalloproteinase activity and increased mechanical rigidity. We find that M2-like macrophage polarization is promoted within the crosslinked scaffolds, which reduces graft-elicited inflammation. Moreover, we show that low activities of matrix metalloproteinases, attributed to both nano-graphene oxide and tissue inhibitors of metalloproteinases expressed by M2c, can protect the crosslinked scaffolds against in vivo degradation. Lastly, we demonstrate that bioengineered livers fabricated with the crosslinked scaffolds remain functional, thereby effectively regenerating damaged livers after transplantation into liver failure mouse models. Overall, nano-graphene oxide crosslinking prolongs allograft survival and ultimately improves therapeutic effects of bioengineered livers, which offer an alternative for donor organs.
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Affiliation(s)
- Da-Hyun Kim
- Adult Stem Cell Research Center and Research Institute for Veterinary Medicine, College of Veterinary Medicine, Seoul National University, Seoul, 08826, Republic of Korea
| | - Min-Ji Kim
- Adult Stem Cell Research Center and Research Institute for Veterinary Medicine, College of Veterinary Medicine, Seoul National University, Seoul, 08826, Republic of Korea
| | - Seon-Yeong Kwak
- Department of Agriculture, Forestry and Life Science, College of Agriculture and Life Science, Seoul National University, Seoul, 08826, Republic of Korea.,Bio-MAX Institute, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jaemin Jeong
- Department of Surgery, Hanyang University College of Medicine, Seoul, 04763, Republic of Korea
| | - Dongho Choi
- Department of Surgery, Hanyang University College of Medicine, Seoul, 04763, Republic of Korea
| | - Soon Won Choi
- Adult Stem Cell Research Center and Research Institute for Veterinary Medicine, College of Veterinary Medicine, Seoul National University, Seoul, 08826, Republic of Korea.,Institute of Bio & Nano Convergence, Biogo Co., LTD, Seoul, 08826, Republic of Korea
| | - Jaechul Ryu
- Adult Stem Cell Research Center and Research Institute for Veterinary Medicine, College of Veterinary Medicine, Seoul National University, Seoul, 08826, Republic of Korea.,Institute of Bio & Nano Convergence, Biogo Co., LTD, Seoul, 08826, Republic of Korea
| | - Kyung-Sun Kang
- Adult Stem Cell Research Center and Research Institute for Veterinary Medicine, College of Veterinary Medicine, Seoul National University, Seoul, 08826, Republic of Korea. .,Bio-MAX Institute, Seoul National University, Seoul, 08826, Republic of Korea.
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Evariste L, Mouchet F, Pinelli E, Flahaut E, Gauthier L, Barret M. Gut microbiota impairment following graphene oxide exposure is associated to physiological alterations in Xenopus laevis tadpoles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159515. [PMID: 36270377 DOI: 10.1016/j.scitotenv.2022.159515] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 10/03/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
Graphene-based nanomaterials such as graphene oxide (GO) possess unique properties triggering high expectations for the development of technological applications. Thus, GO is likely to be released in aquatic ecosystems. It is essential to evaluate its ecotoxicological potential to ensure a safe use of these nanomaterials. In amphibians, previous studies highlighted X. laevis tadpole growth inhibitions together with metabolic disturbances and genotoxic effects following GO exposure. As GO is known to exert bactericidal effects whereas the gut microbiota constitutes a compartment involved in host homeostasis regulation, it is important to determine if this microbial compartment constitutes a toxicological pathway involved in known GO-induced host physiological impairments. This study investigates the potential link between gut microbial communities and host physiological alterations. For this purpose, X. laevis tadpoles were exposed during 12 days to GO. Growth rate was monitored every 2 days and genotoxicity was assessed through enumeration of micronucleated erythrocytes. Genomic DNA was also extracted from the whole intestine to quantify gut bacteria and to analyze the community composition. GO exposure led to a dose dependent growth inhibition and genotoxic effects were detected following exposure to low doses. A transient decrease of the total bacteria was noticed with a persistent shift in the gut microbiota structure in exposed animals. Genotoxic effects were associated to gut microbiota remodeling characterized by an increase of the relative abundance of Bacteroides fragilis. The growth inhibitory effects would be associated to a shift in the Firmicutes/Bacteroidetes ratio while metagenome inference suggested changes in metabolic pathways and upregulation of detoxification processes. This work indicates that the gut microbiota compartment is a biological compartment of interest as it is integrative of host physiological alterations and should be considered for ecotoxicological studies as structural or functional impairments could lead to later life host fitness loss.
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Affiliation(s)
- Lauris Evariste
- Laboratoire Ecologie Fonctionnelle et Environnement, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France.
| | - Florence Mouchet
- Laboratoire Ecologie Fonctionnelle et Environnement, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Eric Pinelli
- Laboratoire Ecologie Fonctionnelle et Environnement, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Emmanuel Flahaut
- CIRIMAT, Université de Toulouse, CNRS, INPT, UPS, UMR CNRS-UPS-INP N°5085, Université Toulouse 3 Paul Sabatier, Bât. CIRIMAT, 118 Route de Narbonne, 31062 Toulouse Cedex 9, France
| | - Laury Gauthier
- Laboratoire Ecologie Fonctionnelle et Environnement, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Maialen Barret
- Laboratoire Ecologie Fonctionnelle et Environnement, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
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Vassaux M, Müller WA, Suter JL, Vijayaraghavan A, Coveney PV. Mechanically Stable Ultrathin Layered Graphene Nanocomposites Alleviate Residual Interfacial Stresses: Implications for Nanoelectromechanical Systems. ACS APPLIED NANO MATERIALS 2022; 5:17969-17976. [PMID: 36583124 PMCID: PMC9791614 DOI: 10.1021/acsanm.2c03955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
Advanced nanoelectromechanical systems made from polymer dielectrics deposited onto 2D-nanomaterials such as graphene are increasingly popular as pressure and touch sensors, resonant sensors, and capacitive micromachined ultrasound transducers (CMUTs). However, durability and accuracy of layered nanocomposites depend on the mechanical stability of the interface between polymer and graphene layers. Here we used molecular dynamics computer simulations to investigate the interface between a sheet of graphene and a layer of parylene-C thermoplastic polymer during large numbers of high-frequency (MHz) cycles of bending relevant to the operating regime. We find that important interfacial sliding occurs almost immediately in usage conditions, resulting in more than 2% expansion of the membrane, a detrimental mechanism which requires repeated calibration to maintain CMUTs accuracy. This irreversible mechanism is caused by relaxation of residual internal stresses in the nanocomposite bilayer, leading to the emergence of self-equilibrated tension in the polymer and compression in the graphene. It arises as a result of deposition-polymerization processing conditions. Our findings demonstrate the need for particular care to be exercised in overcoming initial expansion. The selection of appropriate materials chemistry including low electrostatic interactions will also be key to their successful application as durable and reliable devices.
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Affiliation(s)
- Maxime Vassaux
- Université
de Rennes, CNRS, IPR (Institut de Physique de Rennes), UMR 6251, Rennes 35000, France
- Centre
for Computational Science, Department of Chemistry, University College London, London WC1H 0AJ, United Kingdom
| | - Werner A. Müller
- Centre
for Computational Science, Department of Chemistry, University College London, London WC1H 0AJ, United Kingdom
| | - James L. Suter
- Centre
for Computational Science, Department of Chemistry, University College London, London WC1H 0AJ, United Kingdom
| | - Aravind Vijayaraghavan
- Department
of Materials and National Graphene Institute, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Peter V. Coveney
- Centre
for Computational Science, Department of Chemistry, University College London, London WC1H 0AJ, United Kingdom
- Advanced
Research Computing Centre, University College
London, London WC1H 0AJ, United Kingdom
- Informatics
Institute, University of Amsterdam, Amsterdam 1098 XH, The Netherlands
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Wu L, Lv S, Wei D, Zhang S, Zhang S, Li Z, Liu L, He T. Structure and properties of starch/chitosan food packaging film containing ultra-low dosage GO with barrier and antibacterial. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.108329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Miyazaki J, Ishikawa Y, Kondo R. Multiwavelength Photothermal Imaging of Individual Single-Walled Carbon Nanotubes Suspended in a Solvent. J Phys Chem A 2022; 126:5483-5491. [PMID: 35925805 DOI: 10.1021/acs.jpca.2c03900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Optical imaging of individual single-walled carbon nanotubes (SWCNTs) enables the characterization of heterogeneous SWCNT samples. However, previous measurement methods have targeted SWCNTs fixed on a substrate. In this study, absorption-contrast imaging of individual SWCNTs moving irregularly in a solvent was performed by simultaneous multiwavelength photothermal (PT) microscopy. Using this technique, heterogeneous samples containing semiconducting and metallic SWCNTs were characterized by absorption spectroscopy. The semiconducting and metallic SWCNTs were visualized in different colors in the obtained multiwavelength images due to their different absorption spectra. Statistical analysis of the multiwavelength signals revealed that semiconducting and metallic SWCNTs could be distinguished with more than 90% accuracy. Time-series PT imaging of the nanotube aggregates induced by salt addition was also conducted by performing single-nanotube measurements. Our study demonstrated that PT microscopy is a versatile technique for determining the composition and degree of aggregation of SWCNTs in liquid and polymeric media, which can promote the industrial application of such materials.
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Affiliation(s)
- Jun Miyazaki
- Faculty of Systems Engineering, Wakayama University, 930 Sakae-dani, Wakayama 640-8510, Japan
| | - Yuya Ishikawa
- Faculty of Systems Engineering, Wakayama University, 930 Sakae-dani, Wakayama 640-8510, Japan
| | - Ryosuke Kondo
- Faculty of Systems Engineering, Wakayama University, 930 Sakae-dani, Wakayama 640-8510, Japan
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