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Park S, Yeo CS, Jung W, Choi KY. Gallic acid melanin pigment hydrogel as a flexible macromolecule for articular motion sensing. N Biotechnol 2024; 84:85-95. [PMID: 39326785 DOI: 10.1016/j.nbt.2024.09.006] [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: 04/03/2024] [Revised: 09/22/2024] [Accepted: 09/24/2024] [Indexed: 09/28/2024]
Abstract
In this study, water-soluble melanin was synthesized through the genetic recombination of Escherichia coli using gallic acid as a substrate. The recombinant host produced 2.83 g/L of gallic acid-based melanin (GA melanin) from 20 mM gallic acid. Notably, the isolated GA melanin demonstrated exceptional antioxidant and antimicrobial activities, exhibiting a 25.7 % inhibition ratio against Candida albicans. The structure and composition of GA melanin were analyzed using Fourier-transform infrared (FT-IR) spectroscopy, scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), and X-ray diffraction (XRD). Remarkably, GA melanin displayed high thermal stability, maintaining integrity up to 1000 °C. Additionally, it exhibited unique electrical properties in terms of conductivity and resistivity compared to other common types of melanin. Subsequently, GA melanin was cross-linked with hydrogel to create a sensing template. The resulting GA melanin hydrogel demonstrated lower resistance (80.08 ± 3.0 kohm) compared to conventional hydrogels (108.62 ± 10.4 kohm), indicating an approximately 1.77-fold improvement in adhesion. Given its physical, biological, and electrical properties, the GA melanin hydrogel was further utilized as a flexible motion-sensing material to detect resistivity changes induced by knee, wrist, and finger bending, as well as vocal cord vibrations. In all cases, the sensing module displayed notable sensitivity to motion-induced resistivity variations.
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Affiliation(s)
- SeoA Park
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon-si, Republic of Korea
| | - Chan-Seo Yeo
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon-si, Republic of Korea
| | - Wonjong Jung
- Department of Mechanical, Smart, and Industrial Engineering, Gachon University, Seongnam-si, Gyeonggi-do 13120, Republic of Korea.
| | - Kwon-Young Choi
- Advanced college of Bio-Convergence Engineering, Ajou University, Suwon-si, Republic of Korea; Department of Molecular Science and Technology, Ajou University, Suwon-si, Republic of Korea.
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2
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Eom T, Ozlu B, Ivanová L, Lee S, Lee H, Krajčovič J, Shim BS. Multifunctional Natural and Synthetic Melanin for Bioelectronic Applications: A Review. Biomacromolecules 2024; 25:5489-5511. [PMID: 39194016 DOI: 10.1021/acs.biomac.4c00494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2024]
Abstract
Emerging material interest in bioelectronic applications has highlighted natural melanin and its derivatives as promising alternatives to conventional synthetic conductors. These materials, traditionally noted for their adhesive, antioxidant, biocompatible, and biodegradable properties, have barely been used as conductors due to their extremely low electrical activities. However, recent studies have demonstrated good conductive properties in melanin materials that promote electronic-ionic hybrid charge transfer, attributed to the formation of an extended conjugated backbone. This review examines the multifunctional properties of melanin materials, focusing on their chemical and electrochemical synthesis and their resulting structure-property-function relationship. The wide range of bioelectronic applications will also be presented to highlight their importance and potential to expand into new design concepts for high-performance electronic functional materials. The review concludes by addressing the current challenges in utilizing melanin for biodegradable bioelectronics, providing a perspective on future developments.
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Affiliation(s)
- Taesik Eom
- Program in Biomedical Science & Engineering, Inha University, 100 Inharo, Michuhol-gu, Incheon 22212, South Korea
- Department of Chemical Engineering, Inha University, 100 Inharo, Michuhol-gu, Incheon 22212, South Korea
- KIURI Center for Hydrogen Based Next Generation Mechanical System, Inha University, 36 Gaetbeol-ro, Yeonsu-gu, Incheon 21999, South Korea
| | - Busra Ozlu
- Program in Biomedical Science & Engineering, Inha University, 100 Inharo, Michuhol-gu, Incheon 22212, South Korea
- Department of Chemical Engineering, Inha University, 100 Inharo, Michuhol-gu, Incheon 22212, South Korea
| | - Lucia Ivanová
- Faculty of Chemistry, Brno University of Technology, Purkyňova 118, CZ-612 00 Brno, Czech Republic
| | - Seunghyeon Lee
- Program in Biomedical Science & Engineering, Inha University, 100 Inharo, Michuhol-gu, Incheon 22212, South Korea
- Department of Chemical Engineering, Inha University, 100 Inharo, Michuhol-gu, Incheon 22212, South Korea
| | - HyeonJeong Lee
- Program in Biomedical Science & Engineering, Inha University, 100 Inharo, Michuhol-gu, Incheon 22212, South Korea
| | - Jozef Krajčovič
- Faculty of Chemistry, Brno University of Technology, Purkyňova 118, CZ-612 00 Brno, Czech Republic
| | - Bong Sup Shim
- Program in Biomedical Science & Engineering, Inha University, 100 Inharo, Michuhol-gu, Incheon 22212, South Korea
- Department of Chemical Engineering, Inha University, 100 Inharo, Michuhol-gu, Incheon 22212, South Korea
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3
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Terranova ML. Physiological Roles of Eumelanin- and Melanogenesis-Associated Diseases: A Look at the Potentialities of Engineered and Microbial Eumelanin in Clinical Practice. Bioengineering (Basel) 2024; 11:756. [PMID: 39199714 PMCID: PMC11351163 DOI: 10.3390/bioengineering11080756] [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: 07/04/2024] [Revised: 07/19/2024] [Accepted: 07/20/2024] [Indexed: 09/01/2024] Open
Abstract
This paper aims to highlight the physiological actions exerted by eumelanin present in several organs/tissues of the human body and to rationalise the often conflicting functional roles played by this biopolymer on the basis of its peculiar properties. Besides pigmentary disorders, a growing number of organ injuries and degenerative pathologies are presently ascribed to the modification of physiological eumelanin levels in terms of alterations in its chemical/structural features, and of a partial loss or uneven distribution of the pigment. The present review analyses the more recent research dedicated to the physiological and pathological actions of eumelanin and provides an insight into some melanogenesis-associated diseases of the skin, eye, ear, and brain, including the most significant neurodegenerative disorders. Also described are the potentialities of therapies based on the localised supply of exogeneous EU and the opportunities that EU produced via synthetic biology offers in order to redesign therapeutical and diagnostic applications.
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Affiliation(s)
- Maria Letizia Terranova
- Dip.to di Scienze e Tecnologie Chimiche, Università degli Studi di Roma "Tor Vergata", 00133 Roma, Italy
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4
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Gürcan D, Baysoy E, Kaleli-Can G. Anti-IgG Doped Melanin Nanoparticles Functionalized Quartz Tuning Fork Immunosensors for Immunoglobulin G Detection: In Vitro and In Silico Study. SENSORS (BASEL, SWITZERLAND) 2024; 24:4319. [PMID: 39001098 PMCID: PMC11243786 DOI: 10.3390/s24134319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 06/29/2024] [Accepted: 06/30/2024] [Indexed: 07/16/2024]
Abstract
The quartz tuning fork (QTF) is a promising instrument for biosensor applications due to its advanced properties such as high sensitivity to physical quantities, cost-effectiveness, frequency stability, and high-quality factor. Nevertheless, the fork's small size and difficulty in modifying the prongs' surfaces limit its wide use in experimental research. Our study presents the development of a QTF immunosensor composed of three active layers: biocompatible natural melanin nanoparticles (MNPs), glutaraldehyde (GLU), and anti-IgG layers, for the detection of immunoglobulin G (IgG). Frequency shifts of QTFs after MNP functionalization, GLU activation, and anti-IgG immobilization were measured with an Asensis QTF F-master device. Using QTF immunosensors that had been modified under optimum conditions, the performance of QTF immunosensors for IgG detection was evaluated. Accordingly, a finite element method (FEM)-based model was produced using the COMSOL Multiphysics software program (COMSOL License No. 2102058) to simulate the effect of deposited layers on the QTF resonance frequency. The experimental results, which demonstrated shifts in frequency with each layer during QTF surface functionalization, corroborated the simulation model predictions. A modelling error of 0.05% was observed for the MNP-functionalized QTF biosensor compared to experimental findings. This study validated a simulation model that demonstrates the advantages of a simulation-based approach to optimize QTF biosensors, thereby reducing the need for extensive laboratory work.
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Affiliation(s)
- Dilhan Gürcan
- Department of Biomedical Engineering, İzmir Democracy University, İzmir 35140, Türkiye
| | - Engin Baysoy
- Department of Biomedical Engineering, Bahçeşehir University, İstanbul 34353, Türkiye
| | - Gizem Kaleli-Can
- Department of Biomedical Engineering, İzmir Democracy University, İzmir 35140, Türkiye
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5
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Xie W, Dhinojwala A, Gianneschi NC, Shawkey MD. Interactions of Melanin with Electromagnetic Radiation: From Fundamentals to Applications. Chem Rev 2024; 124:7165-7213. [PMID: 38758918 DOI: 10.1021/acs.chemrev.3c00858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2024]
Abstract
Melanin, especially integumentary melanin, interacts in numerous ways with electromagnetic radiation, leading to a set of critical functions, including radiation protection, UV-protection, pigmentary and structural color productions, and thermoregulation. By harnessing these functions, melanin and melanin-like materials can be widely applied to diverse applications with extraordinary performance. Here we provide a unified overview of the melanin family (all melanin and melanin-like materials) and their interactions with the complete electromagnetic radiation spectrum (X-ray, Gamma-ray, UV, visible, near-infrared), which until now has been absent from the literature and is needed to establish a solid fundamental base to facilitate their future investigation and development. We begin by discussing the chemistries and morphologies of both natural and artificial melanin, then the fundamentals of melanin-radiation interactions, and finally the exciting new developments in high-performance melanin-based functional materials that exploit these interactions. This Review provides both a comprehensive overview and a discussion of future perspectives for each subfield of melanin that will help direct the future development of melanin from both fundamental and applied perspectives.
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Affiliation(s)
- Wanjie Xie
- Department of Biology, Evolution and Optics of Nanostructure Group, University of Ghent, Gent 9000, Belgium
| | - Ali Dhinojwala
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Nathan C Gianneschi
- Department of Chemistry, Department of Materials Science and Engineering, Department of Biomedical Engineering, Simpson-Querrey Institute, Chemistry of Life Processes Institute, Lurie Cancer Center, and International Institute of Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
| | - Matthew D Shawkey
- Department of Biology, Evolution and Optics of Nanostructure Group, University of Ghent, Gent 9000, Belgium
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Rajabathar JR, Al-Lohedan H, Arokiyaraj S, Mohammed F, Al-Dhayan DM, Faqihi NA, Al-Saigh H. Herbal Melanin Inhibits Real-Time Cell Proliferation, Downregulates Anti-Apoptotic Proteins and Upregulates Pro-Apoptotic p53 Expression in MDA-MB-231 and HCT-116 Cancer Cell Lines. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:2061. [PMID: 38138165 PMCID: PMC10744400 DOI: 10.3390/medicina59122061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/12/2023] [Accepted: 11/16/2023] [Indexed: 12/24/2023]
Abstract
Background and Objectives: Cancer is the second-most-important deadly disease in the world, leading to severe socioeconomic consequences and posing a public threat. Consequently, breast and colorectal cancers are significant cancer types that affect women and men more commonly, respectively. Treatment failure or recurrent diseases frequently occur due to resistance, in addition to the side effects of the currently available anticancer agents. Therefore, in this study, herbal melanin anticancer activity was investigated against human breast adenocarcinoma (MDA-MB-231) and human colorectal (HCT 116) cell proliferation and the expression of downregulated anti-apoptotic proteins and upregulated pro-apoptotic p53. Materials and Methods: MDA-MB-231 and HCT 116 cells were monitored for their real-time proliferation properties using Xcelligence. Herbal melanin of various concentrations significantly inhibited MDA-MB-231 and HCT 116 cell proliferation. Then, the expression of proapoptotic and anti-apoptotic proteins such as p53, Bcl-2 and Bcl-xl was studied using Western blotting. Results: The Bcl-2 and Bcl-xl expressions were downregulated, while the p53 expression was upregulated after treatment with herbal melanin. Similarly, the expression of apoptotic proteins such as Bcl-2, Bcl-xl, XIAP, Survivin, Bid, Bax, p53, Cytochrome C, PARP genes and mRNA was studied after herbal melanin treatment using real-time PCR, which revealed the downregulation of Bcl-2, Bcl-xl, XIAP and Survivin and the upregulation of Bid, Bax, p53, Cytochrome C and PARP apoptotic protein expression. Also, caspase 3 and 9 expressions were monitored after the treatment with herbal melanin, which revealed the upregulation of both the MDA-MB-231 and HCT 116 cell types. Conclusions: Overall, herbal melanin can be used as an alternative anticancer agent against the MDA-MB-231 and HCT 116 cell types.
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Affiliation(s)
- Jothi Ramalingam Rajabathar
- Surfactants Research Chair, Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Hamad Al-Lohedan
- Surfactants Research Chair, Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Selvaraj Arokiyaraj
- Department of Food Science and Biotechnology, Sejong University, Seoul 05006, Republic of Korea
| | - Fathima Mohammed
- College of Medicine, King Saud University, Riyadh 11451, Saudi Arabia
| | - Dhaifallah M. Al-Dhayan
- Surfactants Research Chair, Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Norah A. Faqihi
- Surfactants Research Chair, Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Hassan Al-Saigh
- Surfactants Research Chair, Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
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7
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Kabay G, Meydan AE, Eom T, Shim BS, Mutlu M, Kaleli-Can G. Stimuli-responsive nanoparticle-nanofiber hybrids for drug delivery and photodynamic therapy. Int J Pharm 2022; 630:122442. [PMID: 36442721 DOI: 10.1016/j.ijpharm.2022.122442] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 11/27/2022]
Abstract
Hybrid nanomaterials possess integrated multi-components to syncretize various properties and functions within a single entity. Owing to this synergistic effect, they promise efficient anti-cancer therapy. In line with this target, we produced stimuli-responsive nanoparticle-nanofiber hybrids (NNHs) via embedding photoresponsive natural melanin nanoparticles (MNPs) within a biocompatible polycaprolactone (PCL) nanofiber matrix. Electrospinning was performed to produce monolithic and core-shell structured NNHs using a single and a coaxial nozzle. The NNHs were upgraded to drug delivery systems by model hydrophilic drug-ampicillin (amp)-loading. The drug release results showed that monolithic PCL meshes displayed a burst release, whereas nanohybrid formation with MNPs improved the release profile toward Fickian diffusion. Core-shell NNH presented a more sustained drug release profile than its MNP-free replica and monolithic NNH because its encapsulating shell layer hindered the diffusion of the drug. The photodynamic therapy accompanied by UV-A-irradiation on monolithic and core-shell NNHs yielded up to 34 % and 37 % malignant melanoma cell death. Moreover, this study proved the potency of MNPs-enhanced NNHs in drug delivery and photodynamic therapy applications. Even so, more efforts should be concerted to unlock unknown features of the NNHs, which have the power to advance emerging areas, including but not limited to material science, biosensing, and theranostics.
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Affiliation(s)
- Gözde Kabay
- Plasma Aided Biomedical Research Group (pabmed), Department of Biomedical Engineering, TOBB University of Economics and Technology, 06560 Ankara, Turkey; Karlsruhe Institute of Technology, Institute of Functional Interfaces - IFG, 76344 Karlsruhe, Germany.
| | - Ahmet Ersin Meydan
- Plasma Aided Biomedical Research Group (pabmed), Department of Biomedical Engineering, TOBB University of Economics and Technology, 06560 Ankara, Turkey; Department of Molecular Medicine, Graduate School of Health Sciences, TOBB University of Economics and Technology, 06560 Ankara, Turkey
| | - Taesik Eom
- Soft Matter Laboratory, Department of Chemical Engineering, Inha University, Incheon 402-751, South Korea
| | - Bong Sup Shim
- Soft Matter Laboratory, Department of Chemical Engineering, Inha University, Incheon 402-751, South Korea
| | - Mehmet Mutlu
- Plasma Aided Biomedical Research Group (pabmed), Department of Biomedical Engineering, TOBB University of Economics and Technology, 06560 Ankara, Turkey; Department of Material Science and Engineering, Faculty of Engineering, Ostim Technical University, 06374 Ankara, Turkey
| | - Gizem Kaleli-Can
- Plasma Aided Biomedical Research Group (pabmed), Department of Biomedical Engineering, TOBB University of Economics and Technology, 06560 Ankara, Turkey; Department of Biomedical Engineering, İzmir Democracy University, 35140 İzmir, Turkey.
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8
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High conductivity Sepia melanin ink films for environmentally benign printed electronics. Proc Natl Acad Sci U S A 2022; 119:e2200058119. [PMID: 35914170 PMCID: PMC9371694 DOI: 10.1073/pnas.2200058119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Melanins (from the Greek μέλας, mélas, black) are bio-pigments ubiquitous in flora and fauna. Eumelanin is an insoluble brown-black type of melanin, found in vertebrates and invertebrates alike, among which Sepia (cuttlefish) is noteworthy. Sepia melanin is a type of bio-sourced eumelanin that can readily be extracted from the ink sac of cuttlefish. Eumelanin features broadband optical absorption, metal-binding affinity and antioxidative and radical-scavenging properties. It is a prototype of benign material for sustainable organic electronics technologies. Here, we report on an electronic conductivity as high as 10-3 S cm-1 in flexographically printed Sepia melanin films; such values for the conductivity are typical for well-established high-performance organic electronic polymers but quite uncommon for bio-sourced organic materials. Our studies show the potential of bio-sourced materials for emerging electronic technologies with low human- and eco-toxicity.
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Aguilar-Ferrer D, Szewczyk J, Coy E. Recent developments in polydopamine-based photocatalytic nanocomposites for energy production: Physico-chemical properties and perspectives. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.08.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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10
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Moon SM, Kim DW, Lee S, Eom T, Jeon SH, Shim BS. Precisely tuned photonic properties of crystalline nanocellulose biocomposite coatings by gradually tailored nanoarchitectures. Carbohydr Polym 2022; 282:119053. [DOI: 10.1016/j.carbpol.2021.119053] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 11/30/2021] [Accepted: 12/24/2021] [Indexed: 11/02/2022]
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11
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Soltani S, Sowlati-Hashjin S, Tetsassi Feugmo CG, Karttunen M. Free Energy and Stacking of Eumelanin Nanoaggregates. J Phys Chem B 2022; 126:1805-1818. [PMID: 35175060 DOI: 10.1021/acs.jpcb.1c07884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Eumelanin, a member of the melanin family, is a black-brown insoluble pigment. It possesses a broad range of properties such as antioxidation, free radical scavenging, photoprotection, and charge carrier transportation. Surprisingly, the exact molecular structure of eumelanin remains undefined. It is, however, generally considered to consist of two main building blocks, 5,6-dihydroxyindole (DHI) and 5,6- dihydroxyindole carboxylic acid (DHICA). We focus on DHI and report, for the first time, a computational investigation of the structural properties of DHI-eumelanin aggregates in aqueous solutions. First, multimicrosecond molecular dynamics (MD) simulations at different concentrations were performed to investigate the aggregation and ordering of tetrameric DHI-eumelanin protomolecules. This was followed by umbrella sampling (US) and density functional theory (DFT) calculations to study the physical mechanisms of stacking. Aggregation occurs through formation of nanoscale stacks and was observed in all systems. Further analyses showed that aggregation and coarsening of the domains is due to a decrease in hydrogen bonds between the eumelanins and water; while domains exist, there is no long-range order. The results show noncovalent stacks with the interlayer distance between eumelanin protomolecules being less than 3.5 Å. This is in good agreement with transmission electron microscopy data. Both free energy calculations and DFT revealed strong stacking interactions. The electrostatic potential map provides an explanation and a rationale for the slightly sheared relative orientations and, consequently, for the curved shapes of the nanoscale domains.
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Affiliation(s)
- Sepideh Soltani
- Department of Physics and Astronomy, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 3K7, Canada.,The Centre of Advanced Materials and Biomaterials Research, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 5B7, Canada
| | - Shahin Sowlati-Hashjin
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 3G9, Canada
| | - Conrard Giresse Tetsassi Feugmo
- National Research Council Canada, Energy Mining and Environment, Mississauga, Ontario L5K 1B1, Canada.,Department of Chemistry, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 5B7, Canada
| | - Mikko Karttunen
- The Centre of Advanced Materials and Biomaterials Research, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 5B7, Canada.,Department of Physics and Astronomy, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 3K7, Canada.,Department of Chemistry, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 5B7, Canada
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12
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Galeb HA, Lamantia A, Robson A, König K, Eichhorn J, Baldock SJ, Ashton MD, Baum JV, Mort RL, Robinson BJ, Schacher FH, Chechik V, Taylor AM, Hardy JG. The Polymerization of Homogentisic Acid in Vitro as a Model for Pyomelanin Formation. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202100489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hanaa A. Galeb
- Department of Chemistry Lancaster University Lancaster LA1 4YB United Kingdom
- Department of Chemistry Science and Arts College, Rabigh Campus King Abdulaziz University Jeddah 21577 Saudi Arabia
| | - Angelo Lamantia
- Department of Physics Lancaster University Lancaster LA1 4YW United Kingdom
| | - Alexander Robson
- Department of Chemistry Lancaster University Lancaster LA1 4YB United Kingdom
| | - Katja König
- Institut für Organische und Makromolekulare Chemie Friedrich‐Schiller‐Universität Jena Lessingstraße 8 Jena 07743 Germany
| | - Jonas Eichhorn
- Institut für Organische und Makromolekulare Chemie Friedrich‐Schiller‐Universität Jena Lessingstraße 8 Jena 07743 Germany
| | - Sara J. Baldock
- Department of Chemistry Lancaster University Lancaster LA1 4YB United Kingdom
| | - Mark D. Ashton
- Department of Chemistry Lancaster University Lancaster LA1 4YB United Kingdom
| | - John V. Baum
- Department of Chemistry Lancaster University Lancaster LA1 4YB United Kingdom
| | - Richard L. Mort
- Division of Biomedical and Life Sciences Lancaster University Lancaster LA1 4YG United Kingdom
| | - Benjamin J. Robinson
- Department of Physics Lancaster University Lancaster LA1 4YW United Kingdom
- Materials Science Institute Lancaster University Lancaster LA1 4YB United Kingdom
| | - Felix H. Schacher
- Institut für Organische und Makromolekulare Chemie Friedrich‐Schiller‐Universität Jena Lessingstraße 8 Jena 07743 Germany
| | - Victor Chechik
- Department of Chemistry University of York Heslington, York YO10 5DD United Kingdom
| | - Adam M. Taylor
- Lancaster Medical School Lancaster University Lancaster LA1 4YW United Kingdom
| | - John G. Hardy
- Department of Chemistry Lancaster University Lancaster LA1 4YB United Kingdom
- Materials Science Institute Lancaster University Lancaster LA1 4YB United Kingdom
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13
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Understanding the way eumelanin works: A unique example of properties and skills driven by molecular heterogeneity. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123952] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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14
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Galeb HA, Wilkinson EL, Stowell AF, Lin H, Murphy ST, Martin‐Hirsch PL, Mort RL, Taylor AM, Hardy JG. Melanins as Sustainable Resources for Advanced Biotechnological Applications. GLOBAL CHALLENGES (HOBOKEN, NJ) 2021; 5:2000102. [PMID: 33552556 PMCID: PMC7857133 DOI: 10.1002/gch2.202000102] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/04/2020] [Indexed: 05/17/2023]
Abstract
Melanins are a class of biopolymers that are widespread in nature and have diverse origins, chemical compositions, and functions. Their chemical, electrical, optical, and paramagnetic properties offer opportunities for applications in materials science, particularly for medical and technical uses. This review focuses on the application of analytical techniques to study melanins in multidisciplinary contexts with a view to their use as sustainable resources for advanced biotechnological applications, and how these may facilitate the achievement of the United Nations Sustainable Development Goals.
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Affiliation(s)
- Hanaa A. Galeb
- Department of ChemistryLancaster UniversityLancasterLA1 4YBUK
- Department of ChemistryScience and Arts CollegeRabigh CampusKing Abdulaziz UniversityJeddah21577Saudi Arabia
| | - Emma L. Wilkinson
- Department of Biomedical and Life SciencesLancaster UniversityLancasterLA1 4YGUK
| | - Alison F. Stowell
- Department of Organisation, Work and TechnologyLancaster University Management SchoolLancaster UniversityLancasterLA1 4YXUK
| | - Hungyen Lin
- Department of EngineeringLancaster UniversityLancasterLA1 4YWUK
| | - Samuel T. Murphy
- Department of EngineeringLancaster UniversityLancasterLA1 4YWUK
- Materials Science InstituteLancaster UniversityLancasterLA1 4YBUK
| | - Pierre L. Martin‐Hirsch
- Lancashire Teaching Hospitals NHS TrustRoyal Preston HospitalSharoe Green LanePrestonPR2 9HTUK
| | - Richard L. Mort
- Department of Biomedical and Life SciencesLancaster UniversityLancasterLA1 4YGUK
| | - Adam M. Taylor
- Lancaster Medical SchoolLancaster UniversityLancasterLA1 4YWUK
| | - John G. Hardy
- Department of ChemistryLancaster UniversityLancasterLA1 4YBUK
- Materials Science InstituteLancaster UniversityLancasterLA1 4YBUK
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15
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Lee S, Cho EJ, Kwak HB. Personalized Healthcare for Dementia. Healthcare (Basel) 2021; 9:healthcare9020128. [PMID: 33525656 PMCID: PMC7910906 DOI: 10.3390/healthcare9020128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/21/2021] [Accepted: 01/25/2021] [Indexed: 01/07/2023] Open
Abstract
Dementia is one of the most common health problems affecting older adults, and the population with dementia is growing. Dementia refers to a comprehensive syndrome rather than a specific disease and is characterized by the loss of cognitive abilities. Many factors are related to dementia, such as aging, genetic profile, systemic vascular disease, unhealthy diet, and physical inactivity. As the causes and types of dementia are diverse, personalized healthcare is required. In this review, we first summarize various diagnostic approaches associated with dementia. Particularly, clinical diagnosis methods, biomarkers, neuroimaging, and digital biomarkers based on advances in data science and wearable devices are comprehensively reviewed. We then discuss three effective approaches to treating dementia, including engineering design, exercise, and diet. In the engineering design section, recent advances in monitoring and drug delivery systems for dementia are introduced. Additionally, we describe the effects of exercise on the treatment of dementia, especially focusing on the effects of aerobic and resistance training on cognitive function, and the effects of diets such as the Mediterranean diet and ketogenic diet on dementia.
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Affiliation(s)
- Seunghyeon Lee
- Program in Biomedical Science and Engineering, Inha University, Incheon 22212, Korea; (S.L.); (E.-J.C.)
- Department of Chemical Engineering, Inha University, Incheon 22212, Korea
| | - Eun-Jeong Cho
- Program in Biomedical Science and Engineering, Inha University, Incheon 22212, Korea; (S.L.); (E.-J.C.)
| | - Hyo-Bum Kwak
- Program in Biomedical Science and Engineering, Inha University, Incheon 22212, Korea; (S.L.); (E.-J.C.)
- Correspondence: ; Tel.: +82-32-860-8183
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Kohri M. Progress in polydopamine-based melanin mimetic materials for structural color generation. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2021; 21:833-848. [PMID: 33536837 PMCID: PMC7832497 DOI: 10.1080/14686996.2020.1852057] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/11/2020] [Accepted: 11/13/2020] [Indexed: 05/04/2023]
Abstract
Structural color is a color derived from optical interaction between light and a microstructure and is often seen in nature. Natural melanin plays an important role in bright structural coloration. For example, the vivid colors of peacock feathers are due to structural colors. The periodic arrangement of melanin granules inside the feathers leads to light interference, and the black granules absorb scattered light well, resulting in bright structural color. In recent years, polydopamine (PDA) has attracted attention as a melanin mimetic material. This review article summarizes recent research on structural coloration using PDA-based artificial melanin materials. It also outlines possible applications using bright structural colors realized by artificial melanin materials and future perspectives.
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Affiliation(s)
- Michinari Kohri
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, Chiba, Japan
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17
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Electrically conducting polymers for bio-interfacing electronics: From neural and cardiac interfaces to bone and artificial tissue biomaterials. Biosens Bioelectron 2020; 170:112620. [DOI: 10.1016/j.bios.2020.112620] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/31/2020] [Accepted: 09/14/2020] [Indexed: 02/08/2023]
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18
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Liu J, Liu J, Attarilar S, Wang C, Tamaddon M, Yang C, Xie K, Yao J, Wang L, Liu C, Tang Y. Nano-Modified Titanium Implant Materials: A Way Toward Improved Antibacterial Properties. Front Bioeng Biotechnol 2020; 8:576969. [PMID: 33330415 PMCID: PMC7719827 DOI: 10.3389/fbioe.2020.576969] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 10/22/2020] [Indexed: 01/01/2023] Open
Abstract
Titanium and its alloys have superb biocompatibility, low elastic modulus, and favorable corrosion resistance. These exceptional properties lead to its wide use as a medical implant material. Titanium itself does not have antibacterial properties, so bacteria can gather and adhere to its surface resulting in infection issues. The infection is among the main reasons for implant failure in orthopedic surgeries. Nano-modification, as one of the good options, has the potential to induce different degrees of antibacterial effect on the surface of implant materials. At the same time, the nano-modification procedure and the produced nanostructures should not adversely affect the osteogenic activity, and it should simultaneously lead to favorable antibacterial properties on the surface of the implant. This article scrutinizes and deals with the surface nano-modification of titanium implant materials from three aspects: nanostructures formation procedures, nanomaterials loading, and nano-morphology. In this regard, the research progress on the antibacterial properties of various surface nano-modification of titanium implant materials and the related procedures are introduced, and the new trends will be discussed in order to improve the related materials and methods.
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Affiliation(s)
- Jianqiao Liu
- Department of Orthopaedics, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
- Youjiang Medical University for Nationalities, Baise, China
| | - Jia Liu
- Department of Orthopaedics, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Shokouh Attarilar
- Department of Pediatric Orthopaedics, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Chong Wang
- College of Mechanical Engineering, Dongguan University of Technology, Dongguan, China
| | - Maryam Tamaddon
- Institute of Orthopaedic and Musculoskeletal Science, Division of Surgery & Orthopaedic Science, University College London, The Royal National National Orthopaedic Hospital, Stanmore, United Kingdom
| | - Chengliang Yang
- Department of Orthopaedics, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Kegong Xie
- Department of Orthopaedics, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Jinguang Yao
- Youjiang Medical University for Nationalities, Baise, China
| | - Liqiang Wang
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Chaozong Liu
- Institute of Orthopaedic and Musculoskeletal Science, Division of Surgery & Orthopaedic Science, University College London, The Royal National National Orthopaedic Hospital, Stanmore, United Kingdom
| | - Yujin Tang
- Department of Orthopaedics, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
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Chen YC, Kendall T, Yip P, Davy A, Sefcik J, Sutter JU. Influence of Ions and pH on the Formation of Solid- and Liquid-like Melanin. ACS OMEGA 2020; 5:25059-25068. [PMID: 33043184 PMCID: PMC7542583 DOI: 10.1021/acsomega.0c01953] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 09/09/2020] [Indexed: 06/11/2023]
Abstract
Melanin is a natural pigment with broadband absorption and effective ability to dissipate the energy absorbed. The macromolecular structure of melanin shows a delicate balance between short-range ordered and disordered structures without being a random aggregate. The presence of ions or the variation in pH or ionic strength can alter the self-assembly process which subsequently changes the structure of melanin. To understand these relationships, this study investigates the influence of ions and pH in melanin formation. The types of ions present and pH have a profound influence on the formation and structure of melanin particles, while only minor changes are observed in the absorption and excitation-emission analysis. In some conditions, the formation of discernible particles with significant refractive index contrast is avoided while retaining the spectroscopic characteristics of melanin, leading to liquid-like melanin. These findings identify potential pathways which can be used to manipulate the melanin macromolecular structure while providing the desired spectral properties to enable novel bio-engineering applications.
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Affiliation(s)
- Yi-chieh Chen
- Department of Chemical and Process Engineering, University of Strathclyde, James Weir Building, 75 Montrose Street, Glasgow G1 1XJ, U.K.
| | - Thomas Kendall
- Department of Chemical and Process Engineering, University of Strathclyde, James Weir Building, 75 Montrose Street, Glasgow G1 1XJ, U.K.
| | - Philip Yip
- Horiba IBH Ltd., 133 Finnieston Street, Glasgow G3 8HB, Scotland, U.K.
- Photophysics Group, Centre for Molecular Nanometrology, Department
of Physics, The Scottish Universities Physics Alliance, University of Strathclyde, John Anderson Building, 107 Rottenrow, Glasgow G4 0NG, U.K.
| | - Alastair Davy
- Photophysics Group, Centre for Molecular Nanometrology, Department
of Physics, The Scottish Universities Physics Alliance, University of Strathclyde, John Anderson Building, 107 Rottenrow, Glasgow G4 0NG, U.K.
| | - Jan Sefcik
- Department of Chemical and Process Engineering, University of Strathclyde, James Weir Building, 75 Montrose Street, Glasgow G1 1XJ, U.K.
| | - Jens U. Sutter
- Photophysics Group, Centre for Molecular Nanometrology, Department
of Physics, The Scottish Universities Physics Alliance, University of Strathclyde, John Anderson Building, 107 Rottenrow, Glasgow G4 0NG, U.K.
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Natural Melanin Nanoparticle‐decorated Screen‐printed Carbon Electrode: Performance Test for Amperometric Determination of Hexavalent Chromium as Model Trace. ELECTROANAL 2020. [DOI: 10.1002/elan.202000038] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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21
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El-Obeid A, Alajmi H, Harbi M, Yahya WB, Al-Eidi H, Alaujan M, Haseeb A, Trivilegio T, Alhallaj A, Alghamdi S, Ajlouni AW, Matou-Nasri S. Distinct anti-proliferative effects of herbal melanin on human acute monocytic leukemia THP-1 cells and embryonic kidney HEK293 cells. BMC Complement Med Ther 2020; 20:154. [PMID: 32448225 PMCID: PMC7245827 DOI: 10.1186/s12906-020-02944-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 05/07/2020] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Herbal melanin (HM) is a dark pigment extracted from the seed coat of Nigella sativa L. and known to exert biological effects via toll-like receptor 4 (TLR4). Recently, TLR4 was described as involved in natural programmed cell death (apoptosis). Tumor and embryonic cells are used as in vitro cellular models for drug and anti-cancer agent screening. To date, no cytotoxic studies have been reported of HM in TLR4-positive acute monocytic leukemia THP-1 cells compared to TLR4-negative human embryonic kidney HEK293 cells. METHODS We studied the anti-proliferative effects of several HM concentrations on THP-1 and HEK293 cells by evaluating cell viability using the CellTiter-Glo® luminescent assay, assessing the TLR4 expression level, determining the apoptotic status, and analyzing the cell cycle distribution using flow cytometry. Apoptotic pathways were investigated using mitochondrial transition pore opening, caspase activity assays and immunoblot technology. RESULTS Low HM concentrations did not affect THP-1 cell viability, but high HM concentrations (62.5-500 μg/mL) did decrease THP-1 cell viability and induced G0/G1 phase cell cycle arrest. Only at the highest concentration (500 μg/mL), HM slightly increased the TLR4 expression on the THP-1 cell surface, concomitantly upregulated TLR4 whole protein and gene expression, and induced apoptosis in THP-1 cells via activation of the extrinsic and intrinsic pathways. No change of apoptotic status was noticed in TLR4-negative HEK293 cells, although HM decreased HEK293 cell viability and induced cell growth arrest in the G2 phase. CONCLUSION HM exerts distinct anti-proliferative effects on human acute monocytic leukemia and embryonic kidney cells mainly through cell cycle interference in a TLR4-independent manner and through apoptosis induction in a TLR4-dependent manner, as observed in only the THP-1 cells.
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Affiliation(s)
- Adila El-Obeid
- Cell and Gene Therapy Group, Medical Genomics Research Department, King Abdullah International Medical Research Center, Ministry of National Guard Health Affairs, P.O. Box 22490, Riyadh, 11426, Saudi Arabia
- Department of Biobank, King Abdullah International Medical Research Center, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
- School of Pharmacy, Ahfad University for Women, Khartoum, Sudan
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Hala Alajmi
- Department of Biobank, King Abdullah International Medical Research Center, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Mashael Harbi
- Cell and Gene Therapy Group, Medical Genomics Research Department, King Abdullah International Medical Research Center, Ministry of National Guard Health Affairs, P.O. Box 22490, Riyadh, 11426, Saudi Arabia
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Wesam Bin Yahya
- Cell and Gene Therapy Group, Medical Genomics Research Department, King Abdullah International Medical Research Center, Ministry of National Guard Health Affairs, P.O. Box 22490, Riyadh, 11426, Saudi Arabia
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Hamad Al-Eidi
- Cell and Gene Therapy Group, Medical Genomics Research Department, King Abdullah International Medical Research Center, Ministry of National Guard Health Affairs, P.O. Box 22490, Riyadh, 11426, Saudi Arabia
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Monira Alaujan
- Cell and Gene Therapy Group, Medical Genomics Research Department, King Abdullah International Medical Research Center, Ministry of National Guard Health Affairs, P.O. Box 22490, Riyadh, 11426, Saudi Arabia
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Adil Haseeb
- Attosecond-Laser Laboratory, Faculty of Science, Kind Saud University, Riyadh, Saudi Arabia
| | - Thadeo Trivilegio
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- Core Facility, King Abdullah International Medical Research Center, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
| | - Alshaimaa Alhallaj
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- Core Facility, King Abdullah International Medical Research Center, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
| | - Saleh Alghamdi
- Cell and Gene Therapy Group, Medical Genomics Research Department, King Abdullah International Medical Research Center, Ministry of National Guard Health Affairs, P.O. Box 22490, Riyadh, 11426, Saudi Arabia
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Abdul-Wali Ajlouni
- Toxicology Department, Naif Arab University for Security Sciences, Riyadh, Saudi Arabia
| | - Sabine Matou-Nasri
- Cell and Gene Therapy Group, Medical Genomics Research Department, King Abdullah International Medical Research Center, Ministry of National Guard Health Affairs, P.O. Box 22490, Riyadh, 11426, Saudi Arabia.
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.
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Caldas M, Santos AC, Veiga F, Rebelo R, Reis RL, Correlo VM. Melanin nanoparticles as a promising tool for biomedical applications - a review. Acta Biomater 2020; 105:26-43. [PMID: 32014585 DOI: 10.1016/j.actbio.2020.01.044] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 01/23/2020] [Accepted: 01/28/2020] [Indexed: 01/06/2023]
Abstract
Melanin is a biopolymer of easy and cheap availability that can be found among the living organisms and excels for its biocompatibility and biodegradability properties, along with scavenging abilities, metal chelation and electronic conductance. This biomaterial can act as a nanocarrier or agent itself to be used in diverse biomedical applications, such as imaging, controlled drug release, bioengineering and bioelectronics, antioxidant applications and theranostics. In this review, the melanin source and structure, its physicochemical properties, melanin-like polymers as well as the differences among those will be elucidated. The focus will be the discussion of the current approaches that apply melanin nanoparticles (MNPs) and melanin-like nanoparticles (MLNPs) in the biomedical field, to which promising capabilities have been attributed, regarding optoelectronic, photoconductivity and photoacoustic. The use of these nanoparticles, in the last 10 years, in topics as drug delivery or theranostics will be detailed and the major achievements will be discussed. Overall, we anticipate that melanin can drive us toward a new paradigm in medical diagnostics and treatments, since applying melanin features possibly its use as a theranostics nanocarrier agent, not only for diagnostics, but also for photothermal therapy and controlled drug release through chemotherapy. STATEMENT OF SIGNIFICANCE: We present here a timely and opportune review article focusing the significant potential of melanin nanoparticles in biomedical applications, which will be discussed thoroughly. This biomaterial presents multiple capabilities that may be taken into consideration towards cancer theranostics, expecting a high future impact in the nanosized-platforms design and performance.
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23
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Al Khatib M, Costa J, Baratto MC, Basosi R, Pogni R. Paramagnetism and Relaxation Dynamics in Melanin Biomaterials. J Phys Chem B 2020; 124:2110-2115. [PMID: 32105072 DOI: 10.1021/acs.jpcb.9b11785] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Spectroscopical characterization of melanins is a prior requirement for the efficient tailoring of their radical scavenging, ultraviolet-visible radiation absorption, metal chelation, and natural pigment properties. Electron paramagnetic resonance (EPR), exploiting the common persistent paramagnetism of melanins, represents the elective standard for the structural and dynamical characterization of their constituting radical species. Although melanins are mainly investigated using X-band (9.5 GHz) continuous wave (CW)-EPR, an integration with the application of Q-band (34 GHz) in CW and pulse EPR for the discrimination of melanin pigments of different compositions is presented here. The longitudinal relaxation times measured highlight faster relaxation rates for cysteinyldopa melanin, compared to those of the most common dopa melanin pigment, suggesting pulse EPR spin-lattice relaxation time measurements as a complementary tool for characterization of pigments of interest for biomimetic materials engineering.
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Affiliation(s)
- Maher Al Khatib
- Department of Biotechnology, Chemistry and Pharmacy, Università degli Studi di Siena, Via A. Moro 2, 53100 Siena, Italy
| | - Jessica Costa
- Department of Biotechnology, Chemistry and Pharmacy, Università degli Studi di Siena, Via A. Moro 2, 53100 Siena, Italy
| | - Maria Camilla Baratto
- Department of Biotechnology, Chemistry and Pharmacy, Università degli Studi di Siena, Via A. Moro 2, 53100 Siena, Italy
| | - Riccardo Basosi
- Department of Biotechnology, Chemistry and Pharmacy, Università degli Studi di Siena, Via A. Moro 2, 53100 Siena, Italy
| | - Rebecca Pogni
- Department of Biotechnology, Chemistry and Pharmacy, Università degli Studi di Siena, Via A. Moro 2, 53100 Siena, Italy
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24
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Yang T, Zhan L, Huang CZ. Recent insights into functionalized electrospun nanofibrous films for chemo-/bio-sensors. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115813] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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25
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Xie W, Pakdel E, Liang Y, Kim YJ, Liu D, Sun L, Wang X. Natural Eumelanin and Its Derivatives as Multifunctional Materials for Bioinspired Applications: A Review. Biomacromolecules 2019; 20:4312-4331. [DOI: 10.1021/acs.biomac.9b01413] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Wanjie Xie
- Institute for Frontier Materials, Australian Future Fibers Research and Innovation Center, Deakin University, Geelong, Victoria 3220, Australia
| | - Esfandiar Pakdel
- Institute for Frontier Materials, Australian Future Fibers Research and Innovation Center, Deakin University, Geelong, Victoria 3220, Australia
| | - Yujia Liang
- Institute for Frontier Materials, Australian Future Fibers Research and Innovation Center, Deakin University, Geelong, Victoria 3220, Australia
| | - Young Jo Kim
- Department of Chemical Engineering, University of New Hampshire, 33 Academic Way, Kingsbury Hall W301, Durham, New Hampshire 03824, United States
| | - Dan Liu
- Institute for Frontier Materials, Australian Future Fibers Research and Innovation Center, Deakin University, Geelong, Victoria 3220, Australia
| | - Lu Sun
- Institute for Frontier Materials, Australian Future Fibers Research and Innovation Center, Deakin University, Geelong, Victoria 3220, Australia
| | - Xungai Wang
- Institute for Frontier Materials, Australian Future Fibers Research and Innovation Center, Deakin University, Geelong, Victoria 3220, Australia
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26
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Suarez-Martinez PC, Batys P, Sammalkorpi M, Lutkenhaus JL. Time–Temperature and Time–Water Superposition Principles Applied to Poly(allylamine)/Poly(acrylic acid) Complexes. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b02512] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Pilar C. Suarez-Martinez
- Artie McFerrin Department of Chemical Engineering and ⊥Department of Materials Science, Texas A&M University, College Station, Texas 77843, United States
| | - Piotr Batys
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, PL-30239 Krakow, Poland
| | | | - Jodie L. Lutkenhaus
- Artie McFerrin Department of Chemical Engineering and ⊥Department of Materials Science, Texas A&M University, College Station, Texas 77843, United States
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27
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Amdursky N, Głowacki ED, Meredith P. Macroscale Biomolecular Electronics and Ionics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1802221. [PMID: 30334284 DOI: 10.1002/adma.201802221] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 06/25/2018] [Indexed: 05/18/2023]
Abstract
The conduction of ions and electrons over multiple length scales is central to the processes that drive the biological world. The multidisciplinary attempts to elucidate the physics and chemistry of electron, proton, and ion transfer in biological charge transfer have focused primarily on the nano- and microscales. However, recently significant progress has been made on biomolecular materials that can support ion and electron currents over millimeters if not centimeters. Likewise, similar transport phenomena in organic semiconductors and ionics have led to new innovations in a wide variety of applications from energy generation and storage to displays and bioelectronics. Here, the underlying principles of conduction on the macroscale in biomolecular materials are discussed, highlighting recent examples, and particularly the establishment of accurate structure-property relationships to guide rationale material and device design. The technological viability of biomolecular electronics and ionics is also discussed.
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Affiliation(s)
- Nadav Amdursky
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Eric Daniel Głowacki
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Bredgatan 33, SE-60174, Norrköping, Sweden
- Wallenberg Centre for Molecular Medicine, Linköping University, 58183, Linköping, Sweden
| | - Paul Meredith
- Department of Physics, Swansea University, Singleton Park, Swansea, SA2 8PP, Wales, UK
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28
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Nie K, An Q, Zink JI, Yu X, Zhang Y. Layer by Layer Mesoporous Silica-Hyaluronic Acid-Cyclodextrin Bifunctional "Lamination": Study of the Application of Fluorescent Probe and Host⁻Guest Interactions in the Drug Delivery Field. MATERIALS 2018; 11:ma11091745. [PMID: 30227631 PMCID: PMC6164273 DOI: 10.3390/ma11091745] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 09/13/2018] [Accepted: 09/14/2018] [Indexed: 02/06/2023]
Abstract
The layer-by-layer technique was exploited to adjust the magnitude of the host⁻guest interactions between adamantane and cyclodextrin. The effect depends on numerous complex and changeable growth profiles of the films and the number of bilayers. These composite films of mesoporous silica nanoparticles and hyaluronic acid⁻cyclodextrin(HA-CD) were constructed to load the fluorescent dyes and peptides. The release rates of these molecules would decrease with an increase in the number of layers. A laser scanning confocal microscope was utilized to obtain the diffusion coefficient of fluorescein isothiocyanate. Hybrid films could be applied to increase the loading of different kinds of molecules and could also be integrated into the lamination to delay the rate of release.
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Affiliation(s)
- Kun Nie
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China.
| | - Qi An
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China.
| | - Jeffrey I Zink
- Department of Chemistry and Biochemistry and California Nano Systems Institute, University of California, Los Angeles, CA 90095, USA.
| | - Xiang Yu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China.
| | - Yihe Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China.
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29
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De Souza RA, Kamat NM, Nadkarni VS. Purification and characterisation of a sulphur rich melanin from edible mushroom Termitomyces albuminosus Heim. Mycology 2018; 9:296-306. [PMID: 30533254 PMCID: PMC6282441 DOI: 10.1080/21501203.2018.1494060] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Accepted: 06/23/2018] [Indexed: 11/26/2022] Open
Abstract
Production, purification and characterisation of a black pigment from Termitomyces albuminosus as melanin is reported, for the first time, from shaken submerged culture condition using scanning electron microscopy (SEM), elemental analysis, ultraviolet-visible (UV-VIS), and Fourier transformed infrared spectroscopy (FTIR), electron paramagnetic resonance (EPR) and 13C (CP/MAS) NMR spectra. SEM results on T. albuminosus revealed nanogranular nature of melanin nanoparticles within size range of 400-100 nm with fractal dimension D = 1.195-1.73. Elemental analysis of melanin indicated 54.6% C, 3.5% H, 2.4% N, 26.9% O, and 12% S. UV-VIS and FTIR spectra confirmed to the characteristic of melanin and were identical to the reference commercial sepia melanin. Further validation of the identity of pigment as melanin was achieved by EPR analysis. Termitomyces albuminosus melanin is postulated to be DOPA-type melanin confirmed by 13C (CP/MAS) NMR spectral analysis showing chemical shift at 200-170 ppm carbonyl, 160-110 ppm aromatic region, and with high 40-30 ppm open chain aliphatic region. Chemical modification through oxidation and cysteinylation (Pheomelanin) is implied as indicated by relatively high sulphur content (12%).
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Affiliation(s)
- Rosy Agnes De Souza
- Mycological Laboratory, Department of Botany, Goa University, Taleigao, Goa, India
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