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Matusiak J, Maciołek U, Kosińska-Pezda M, Sternik D, Orzeł J, Grządka E. Textural and Thermal Properties of the Novel Fucoidan/Nano-Oxides Hybrid Materials with Cosmetic, Pharmaceutical and Environmental Potential. Int J Mol Sci 2022; 23:ijms23020805. [PMID: 35054994 PMCID: PMC8775903 DOI: 10.3390/ijms23020805] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/07/2022] [Accepted: 01/09/2022] [Indexed: 02/04/2023] Open
Abstract
The main purpose of the research was to obtain and study hybrid materials based on three different nano-oxides commonly used in the cosmetic and pharmaceutical industries: Al2O3, TiO2, and ZnO, with the natural bioactive polysaccharide fucoidan. Since the mentioned oxides are largely utilized by industry, there is no doubt that the presented studies are important from an environmental point of view. On the basis of the textural studies (dynamic light scattering DLS, low temperature nitrogen adsorption, X-ray diffraction analysis XRD, scanning electron microscopy SEM) it was proved that the properties of the hybrid materials differ from the pure components of the system. Moreover, the advanced thermal analysis (TG-DTG-DSC) combined with the evolved gas analysis using Fourier transformed infrared spectroscopy (FTIR) and mass spectrometry were applied to describe the thermal decomposition of fucoidan, oxides and hybrid materials. It was found that the interactions between the polymer and the oxides results in the formation of the hybrid materials due to the functionalization of the nanoparticles surface, and that their thermal stability increased when compared to the pure substrates. Such findings definitely fill the literature void regarding the fucoidan based hybrid materials and help the industrial formulators in the preparation of new products.
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Affiliation(s)
- Jakub Matusiak
- Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University in Lublin, M. Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland
- Correspondence:
| | - Urszula Maciołek
- Analytical Laboratory, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University in Lublin, M. Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland;
| | - Małgorzata Kosińska-Pezda
- Department of Inorganic and Analytical Chemistry, Faculty of Chemistry, Rzeszow University of Technology, 35-959 Rzeszow, Poland;
| | - Dariusz Sternik
- Department of Physical Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University in Lublin, M. Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland;
| | - Jolanta Orzeł
- Department of Radiochemistry and Environmental Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University in Lublin, M. Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland; (J.O.); (E.G.)
| | - Elżbieta Grządka
- Department of Radiochemistry and Environmental Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University in Lublin, M. Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland; (J.O.); (E.G.)
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52
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Proniewicz E, Starowicz M, Ozaki Y. Determination of the Influence of Various Factors on the Character of Surface Functionalization of Copper(I) and Copper(II) Oxide Nanosensors with Phenylboronic Acid Derivatives. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:557-568. [PMID: 34933549 PMCID: PMC8757468 DOI: 10.1021/acs.langmuir.1c02990] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/08/2021] [Indexed: 06/14/2023]
Abstract
In this work, we attempt to determine the influence of the oxidation state of copper [Cu(I) vs Cu(II)], the nature of the interface (solid/aqueous vs solid/air), the incubation time, and the structure of N-substituted phenylboronic acids (PBAs) functionalizing the surface of copper oxide nanostructures (NSs) on the mode of adsorption. For this purpose, 4-[(N-anilino)(phosphono)-S-methyl]phenylboronic acid (1-PBA) and its two analogues (2-PBA and bis{1-PBA}) and the copper oxide NSs were synthesized in a surfactant-/ion-free solution via a synthetic route that allows controlling the size and morphology of NSs. The NSs were characterized by scanning electron microscopy, ultraviolet-visible spectroscopy, Raman spectroscopy, and X-ray diffraction, which confirmed the formation of spherical Cu2O nanoparticles (Cu2ONPs) with a size of 1.5 μm to 600 nm crystallized in a cubic cuprite structure and leaf-like CuO nanostructures (CuONSs) with dimensions of 80-180 nm in width and 400-700 nm in length and crystallized in a monoclinic structure. PBA analogues were deposited on the surface of the copper oxide NSs, and adsorption was investigated using surface-enhanced Raman spectroscopy (SERS). The changes in the orientation of the molecule relative to the substrate surface caused by the abovementioned factors were described, and the signal enhancement on the copper oxide NSs was determined. This is the first study using vibrational spectroscopy for these compounds.
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Affiliation(s)
- Edyta Proniewicz
- Faculty
of Foundry Engineering, AGH University of
Science and Technology, ul. Reymonta 23, 30-059 Krakow, Poland
- School
of Biological and Environmental Sciences, Kwansei Gakuin University, 2-1, Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Maria Starowicz
- Faculty
of Foundry Engineering, AGH University of
Science and Technology, ul. Reymonta 23, 30-059 Krakow, Poland
| | - Yukihiro Ozaki
- School
of Biological and Environmental Sciences, Kwansei Gakuin University, 2-1, Gakuen, Sanda, Hyogo 669-1337, Japan
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53
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Perera WPTD, Dissanayake DMRK, Unagolla JM, De Silva RT, Bathige SDNK, Pahalagedara LR. Albumin grafted coaxial electrosparyed polycaprolactone-zinc oxide nanoparticle for sustained release and activity enhanced antibacterial drug delivery. RSC Adv 2022; 12:1718-1727. [PMID: 35425191 PMCID: PMC8978970 DOI: 10.1039/d1ra07847j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Accepted: 01/03/2022] [Indexed: 12/01/2022] Open
Abstract
One of the most serious issues faced by the healthcare sector is the development of multidrug resistance among various pathogens. It is such that developing new and more capable drugs takes far too long to counter such resistance. In order to overcome these concerns, this study focused on improving upon the coaxial electrospraying process by producing cloxacillin loaded albumin polycaprolactone (PCL) with a ZnO coating for sustained and activity enhanced drug delivery. Albumin-grafted, polycaprolactone-coated, zinc oxide-loaded cloxacillin (APCL-CLOX-ZnO) nanoparticles with a diameter of 85-110 nm were obtained via a coaxial electrospray technique. The encapsulation efficiency of cloxacillin of ZnO-CLOX was found to be approximately 60%. The loading efficiencies of ZnO-CLOX and APCL-CLOX-ZnO were found to be 40% and 28% respectively. Albumin was employed in order to impart immune evasion properties to the formulation. Drug-loaded ZnO NPs were analyzed using SEM, TEM, FT-IR and TGA. This novel formulation was shown to possess sustained release characteristics owing to the PCL and albumin coatings, relative to uncoated counterparts. ZnO-CLOX and APCL-CLOX-ZnO exhibited 72% and 52% cloxacillin release within 24 h. APCL-CLOX-ZnO exhibited potent antimicrobial activity against S. epidermidis, B. cereus and P. aeruginosa and some activity against E. coli with inhibition zones 32 ± 1.4, 34 ± 0.3, 32 ± 0.6 and 11 ± 0.4 mm, respectively. Cytotoxicity studies against murine preosteoblast cells revealed that the albumin-PCL coating served to drastically reduce initial toxicity against healthy mammalian cells. In vitro lung deposition study showed 70% of APCL-CLOX-ZnO particles can reach up to the alveoli level. Therefore, this novel coaxial nanoformulation may serve as a promising drug delivery platform for the treatment of bacterial infections including respiratory tract complications.
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Affiliation(s)
- W Pamoda Thavish D Perera
- Academy of the Sri Lanka Institute of Nanotechnology Nanotechnology and Science Park, Mahenwatte, Pitipana Homagama 10206 Sri Lanka
- Sri Lanka Institute of Nanotechnology Nanotechnology and Science Park, Mahenwatte, Pitipana Homagama 10206 Sri Lanka
| | - D M Ranga K Dissanayake
- Sri Lanka Institute of Nanotechnology Nanotechnology and Science Park, Mahenwatte, Pitipana Homagama 10206 Sri Lanka
- Department of Pharmacy and Pharmaceutical Sciences, University of Sri Jayewardenepura Gangodawila Nugegoda 10250 Sri Lanka
| | - Janitha M Unagolla
- Department of Bioengineering, College of Engineering, University of Toledo Toledo OH 43607 USA
| | - Rangika T De Silva
- Sri Lanka Institute of Nanotechnology Nanotechnology and Science Park, Mahenwatte, Pitipana Homagama 10206 Sri Lanka
| | - Sanjaya D N K Bathige
- Sri Lanka Institute of Nanotechnology Nanotechnology and Science Park, Mahenwatte, Pitipana Homagama 10206 Sri Lanka
| | - Lakshitha R Pahalagedara
- Sri Lanka Institute of Nanotechnology Nanotechnology and Science Park, Mahenwatte, Pitipana Homagama 10206 Sri Lanka
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54
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Fattahi A, Koohsari P, Shadman Lakmehsari M, Ghandi K. The Impact of the Surface Modification on Tin-Doped Indium Oxide Nanocomposite Properties. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:155. [PMID: 35010105 PMCID: PMC8746389 DOI: 10.3390/nano12010155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 12/27/2021] [Accepted: 12/31/2021] [Indexed: 02/04/2023]
Abstract
This review provides an analysis of the theoretical methods to study the effects of surface modification on structural properties of nanostructured indium tin oxide (ITO), mainly by organic compounds. The computational data are compared with experimental data such as X-ray diffraction (XRD), atomic force microscopy (AFM) and energy-dispersive X-ray spectroscopy (EDS) data with the focus on optoelectronic and electrocatalytic properties of the surface to investigate potential relations of these properties and applications of ITO in fields such as biosensing and electronic device fabrication. Our analysis shows that the change in optoelectronic properties of the surface is mainly due to functionalizing the surface with organic molecules and that the electrocatalytic properties vary as a function of size.
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Affiliation(s)
- Arash Fattahi
- Department of Chemistry, University of Guelph, Guelph, ON N1G 2W1, Canada;
| | - Peyman Koohsari
- Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan P.O. Box 45195-313, Iran; (P.K.); (M.S.L.)
| | - Muhammad Shadman Lakmehsari
- Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan P.O. Box 45195-313, Iran; (P.K.); (M.S.L.)
| | - Khashayar Ghandi
- Department of Chemistry, University of Guelph, Guelph, ON N1G 2W1, Canada;
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55
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Wacker JN, Ditter AS, Cary SK, Murray AV, Bertke JA, Seidler GT, Kozimor SA, Knope KE. Reactivity of a Chloride Decorated, Mixed Valent Ce III/IV38-Oxo Cluster. Inorg Chem 2021; 61:193-205. [PMID: 34914366 DOI: 10.1021/acs.inorgchem.1c02705] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A cerium-oxo nanocluster capped by chloride ligands, [CeIV38-nCeIIInO56-(n+1)(OH)n+1Cl51(H2O)11]10- (n = 1-24), has been isolated from acidic chloride solutions by using potassium counterions. The crystal structure was elucidated using single crystal X-ray diffraction. At the center of the cluster is a {Ce14} core that exhibits the same fluorite-type structure as bulk CeO2, with eight-coordinate Ce sites bridged by tetrahedral oxo anions. The {Ce14} is further surrounded by a peripheral shell of six tetranuclear {Ce4} subunits that are located on each of the faces of the core to yield the {Ce38} cluster. The surface of the cluster is capped by 51 bridging/terminal chloride ligands and 11 water molecules; the anionic cluster is charge balanced by potassium counterions that exist in the outer coordination sphere. While assignment of the Ce oxidation state by bond valence summation was ambiguous, Ce L3-edge X-ray absorption, X-ray photoelectron, and UV-vis-NIR absorption results were consistent with a CeIII/CeIV cluster. Systematic changes in the XANES and UV-vis-NIR absorption spectra over time pointed to reactivity of the cluster upon exposure to air. These changes were examined using single crystal X-ray diffraction, and a clear single-crystal-to-single-crystal transformation was captured; an overall loss of surface-bound chlorides and water molecules as well as new μ2-OH sites was observed on the cluster surface. This work provides a rare snapshot of metal oxide cluster reactivity. The results may hold implications for understanding the physical and chemical properties of ceria nanoparticles and provide insight into the behavior of other metal-oxo clusters of significant technological and environmental interest.
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Affiliation(s)
- Jennifer N Wacker
- Department of Chemistry, Georgetown University, 37th and O Streets NW, Washington, D.C. 20057, United States
| | - Alexander S Ditter
- Los Alamos National Laboratory (LANL), P.O. Box 1663, Los Alamos, New Mexico 87545, United States.,Department of Physics, University of Washington, Box 351560, Seattle, Washington 98195, United States
| | - Samantha K Cary
- Los Alamos National Laboratory (LANL), P.O. Box 1663, Los Alamos, New Mexico 87545, United States
| | - Aphra V Murray
- Department of Chemistry, Georgetown University, 37th and O Streets NW, Washington, D.C. 20057, United States
| | - Jeffery A Bertke
- Department of Chemistry, Georgetown University, 37th and O Streets NW, Washington, D.C. 20057, United States
| | - Gerald T Seidler
- Department of Physics, University of Washington, Box 351560, Seattle, Washington 98195, United States
| | - Stosh A Kozimor
- Los Alamos National Laboratory (LANL), P.O. Box 1663, Los Alamos, New Mexico 87545, United States
| | - Karah E Knope
- Department of Chemistry, Georgetown University, 37th and O Streets NW, Washington, D.C. 20057, United States
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56
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Sacher E, Yelon A. A Pragmatic Perspective of the Antibacterial Properties of Metal-Based Nanoparticles. NANOMATERIALS 2021; 11:nano11123214. [PMID: 34947563 PMCID: PMC8707375 DOI: 10.3390/nano11123214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 11/11/2021] [Accepted: 11/24/2021] [Indexed: 12/18/2022]
Abstract
A consideration of the antibacterial efficacy of metal-based nanoparticles, from the point of view of their physicochemical properties, suggests that such efficacy arises from the protein coronas that form around them, and that the contents of the coronas depend on the chemical groups found on the nanoparticle surfaces. We offer a new perspective and new insights, making use of our earlier observations of the physicochemical properties of nanoparticle surfaces, to propose that the nanoparticle serves as a mediator for the formation and activation of the protein corona, which attacks the bacterium. That is, the nanoparticle enhances the body’s natural defenses, using proteins present in body fluids.
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57
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Fluorescence quenching and related interactions among globular proteins (BSA and lysozyme) in presence of titanium dioxide nanoparticles. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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58
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Li Y, Du N, Song S, Hou W. Size-dependent dissociation of surface hydroxyl groups of silica in aqueous solution. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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59
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Surface Effect of Nano-Roughened Yttria-Doped Zirconia on Salivary Protein Adhesion. MATERIALS 2021; 14:ma14216412. [PMID: 34771939 PMCID: PMC8585120 DOI: 10.3390/ma14216412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 11/17/2022]
Abstract
Biocompatibility of yttria (3 mol%) stabilized zirconia ceramics, 3Y-TZP, was affected to a large degree as a result of protein adsorption from human saliva that in turn depends on materials surface properties. Variable nano-roughness levels in 3Y-TZP discs were characterized and tested for specificity and selectivity with respect to size and uptake for human salivary protein.
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60
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Fang Y, Yang X, Lin Y, Shi J, Prominski A, Clayton C, Ostroff E, Tian B. Dissecting Biological and Synthetic Soft-Hard Interfaces for Tissue-Like Systems. Chem Rev 2021; 122:5233-5276. [PMID: 34677943 DOI: 10.1021/acs.chemrev.1c00365] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Soft and hard materials at interfaces exhibit mismatched behaviors, such as mismatched chemical or biochemical reactivity, mechanical response, and environmental adaptability. Leveraging or mitigating these differences can yield interfacial processes difficult to achieve, or inapplicable, in pure soft or pure hard phases. Exploration of interfacial mismatches and their associated (bio)chemical, mechanical, or other physical processes may yield numerous opportunities in both fundamental studies and applications, in a manner similar to that of semiconductor heterojunctions and their contribution to solid-state physics and the semiconductor industry over the past few decades. In this review, we explore the fundamental chemical roles and principles involved in designing these interfaces, such as the (bio)chemical evolution of adaptive or buffer zones. We discuss the spectroscopic, microscopic, (bio)chemical, and computational tools required to uncover the chemical processes in these confined or hidden soft-hard interfaces. We propose a soft-hard interaction framework and use it to discuss soft-hard interfacial processes in multiple systems and across several spatiotemporal scales, focusing on tissue-like materials and devices. We end this review by proposing several new scientific and engineering approaches to leveraging the soft-hard interfacial processes involved in biointerfacing composites and exploring new applications for these composites.
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Affiliation(s)
- Yin Fang
- The James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States
| | - Xiao Yang
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Yiliang Lin
- The James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States.,Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States.,The Institute for Biophysical Dynamics, University of Chicago, Chicago, Illinois 60637, United States
| | - Jiuyun Shi
- The James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States.,Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States.,The Institute for Biophysical Dynamics, University of Chicago, Chicago, Illinois 60637, United States
| | - Aleksander Prominski
- The James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States.,Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States.,The Institute for Biophysical Dynamics, University of Chicago, Chicago, Illinois 60637, United States
| | - Clementene Clayton
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Ellie Ostroff
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Bozhi Tian
- The James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States.,Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States.,The Institute for Biophysical Dynamics, University of Chicago, Chicago, Illinois 60637, United States
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61
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Deng Z, Renault C. Unravelling the last milliseconds of an individual graphene nanoplatelet before impact with a Pt surface by bipolar electrochemistry. Chem Sci 2021; 12:12494-12500. [PMID: 34603681 PMCID: PMC8480341 DOI: 10.1039/d1sc03646g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 08/16/2021] [Indexed: 11/21/2022] Open
Abstract
Contactless interactions of micro/nano-particles near electrochemically or chemically active interfaces are ubiquitous in chemistry and biochemistry. Forces arising from a convective field, an electric field or chemical gradients act on different scales ranging from few microns down to few nanometers making their study difficult. Here, we correlated optical microscopy and electrochemical measurements to track at the millisecond timescale the dynamics of individual two-dimensional particles, graphene nanoplatelets (GNPs), when approaching an electrified Pt micro-interface. Our original approach takes advantage of the bipolar feedback current recorded when a conducting particle approaches an electrified surface without electrical contact and numerical simulations to access the velocity of individual GNPs. We evidenced a strong deceleration of GNPs from few tens of μm s-1 down to few μm s-1 within the last μm above the surface. This observation reveals the existence of strongly non-uniform forces between tens of and a thousand nanometers from the surface.
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Affiliation(s)
- Zejun Deng
- Laboratoire de Physique de la Matière Condensée, Ecole Polytechnique, CNRS, IP Paris Route de Saclay 91128 Palaiseau France
| | - Christophe Renault
- Laboratoire de Physique de la Matière Condensée, Ecole Polytechnique, CNRS, IP Paris Route de Saclay 91128 Palaiseau France
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62
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Raja IS, Preeth DR, Vedhanayagam M, Hyon SH, Lim D, Kim B, Rajalakshmi S, Han DW. Polyphenols-loaded electrospun nanofibers in bone tissue engineering and regeneration. Biomater Res 2021; 25:29. [PMID: 34563260 PMCID: PMC8466400 DOI: 10.1186/s40824-021-00229-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 08/30/2021] [Indexed: 01/27/2023] Open
Abstract
Bone is a complex structure with unique cellular and molecular process in its formation. Bone tissue regeneration is a well-organized and routine process at the cellular and molecular level in humans through the activation of biochemical pathways and protein expression. Though many forms of biomaterials have been applied for bone tissue regeneration, electrospun nanofibrous scaffolds have attracted more attention among researchers with their physicochemical properties such as tensile strength, porosity, and biocompatibility. When drugs, antibiotics, or functional nanoparticles are taken as additives to the nanofiber, its efficacy towards the application gets increased. Polyphenol is a versatile green/phytochemical small molecule playing a vital role in several biomedical applications, including bone tissue regeneration. When polyphenols are incorporated as additives to the nanofibrous scaffold, their combined properties enhance cell attachment, proliferation, and differentiation in bone tissue defect. The present review describes bone biology encompassing the composition and function of bone tissue cells and exemplifies the series of biological processes associated with bone tissue regeneration. We have highlighted the molecular mechanism of bioactive polyphenols involved in bone tissue regeneration and specified the advantage of electrospun nanofiber as a wound healing scaffold. As the polyphenols contribute to wound healing with their antioxidant and antimicrobial properties, we have compiled a list of polyphenols studied, thus far, for bone tissue regeneration along with their in vitro and in vivo experimental biological results and salient observations. Finally, we have elaborated on the importance of polyphenol-loaded electrospun nanofiber in bone tissue regeneration and discussed the possible challenges and future directions in this field.
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Affiliation(s)
| | - Desingh Raj Preeth
- Chemical Biology and Nanobiotechnology Laboratory, AU-KBC Research Centre, Anna University, MIT Campus, Chromepet, Chennai, 600 044, India
| | | | | | - Dohyung Lim
- Department of Mechanical Engineering, Sejong University, Seoul, 05006, South Korea
| | - Bongju Kim
- Dental Life Science Research Institute / Innovation Research & Support Center for Dental Science, Seoul National University Dental Hospital, Seoul, 03080, South Korea.
| | - Subramaniyam Rajalakshmi
- Chemical Biology and Nanobiotechnology Laboratory, AU-KBC Research Centre, Anna University, MIT Campus, Chromepet, Chennai, 600 044, India.
| | - Dong-Wook Han
- BIO-IT Fusion Technology Research Institute, Pusan National University, Busan, 46241, South Korea. .,Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241, South Korea.
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63
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Azhar S, Ahmad KS, Abrahams I, Lin W, Gupta RK, Mazhar M, Ali D. Phyto-inspired Cu/Bi oxide-based nanocomposites: synthesis, characterization, and energy relevant investigation. RSC Adv 2021; 11:30510-30519. [PMID: 35479863 PMCID: PMC9041097 DOI: 10.1039/d1ra05066d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 08/24/2021] [Indexed: 01/25/2023] Open
Abstract
A modified and sustainable approach is reported in this research for the synthesis of a spherical-shaped CuO–Bi2O3 electrode material for electrochemical studies. Aqueous extract derived from the plant Amaranthus viridis L. (Amaranthaceae) (AVL) was used as a reducing agent for morphological control of the synthesis of CuO–Bi2O3 nanocomposites. The modified nanomaterial revealed an average crystal size of 49 ± 2 nm, which matches very well with scanning electron microscopy (SEM) findings. Furthermore, the synthesized material was characterized using Fourier-transform infrared spectroscopy, field emission SEM and energy-dispersive spectroscopy. The optical band gap energy of 3.45 eV was calculated using a Tauc plot. Finally, the bioorganic framework-derived CuO–Bi2O3 electrode was tested for energy generating and storage applications and the results revealed a capacitance of 389 F g−1 by cyclic voltammetry, with a maximum energy density of 12 W h kg−1 and power density of 5 kW kg−1. Hydrogen evolution reaction and oxygen evolution reaction studies showed good potential of CuO–Bi2O3 as an electrocatalyst for water splitting, with maximum efficiency of the electrode up to 16.5 hours. Spherical-shaped CuO–Bi2O3 electrode material and its electrochemical studies.![]()
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Affiliation(s)
- Sundus Azhar
- Department of Environmental Sciences, Fatima Jinnah Women University Rawalpindi Pakistan
| | - Khuram Shahzad Ahmad
- Department of Environmental Sciences, Fatima Jinnah Women University Rawalpindi Pakistan
| | - Isaac Abrahams
- School of Biological and Chemical Sciences, Queen Mary University of London London UK
| | - Wang Lin
- Department of Chemistry, Pittsburg State University Pittsburg KS 66762 USA
| | - Ram K Gupta
- Department of Chemistry, Pittsburg State University Pittsburg KS 66762 USA
| | - Muhammad Mazhar
- Department of Chemistry, School of Natural Sciences, National University of Sciences and Technology H12 Islamabad Pakistan
| | - Daoud Ali
- Department of Zoology, College of Science, King Saud University PO Box 2455 Riyadh 11451 Saudi Arabia
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64
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Volkov VV, Heinz H, Perry CC. Anchoring of a hydrophobic heptapeptide (AFILPTG) on silica facilitates peptide unfolding at the abiotic-biotic interface. Phys Chem Chem Phys 2021; 23:18001-18011. [PMID: 34382985 DOI: 10.1039/d1cp02072b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A hydrophobic heptapeptide, with sequence AFILPTG, as part of a phage capsid protein binds effectively to silica particles carrying negative charge. Here, we explore the silica binding activity of the sequence as a short polypeptide with polar N and C terminals. To describe the structural changes that occur on binding, we fit experimental infrared, Raman and circular dichroism data for a number of structures simulated in the full configuration space of the hepta-peptide using replica exchange molecular dynamics. Quantum chemistry was used to compute normal modes of infrared and Raman spectra and establish a relationship to structures from MD data. To interpret the circular dichroism data, instead of empirical factoring of optical activity into helical/sheet/random components, we exploit natural transition orbital theory and specify the contributions of backbone amide units, side chain functional groups, water, sodium ions and silica to the observed transitions. Computed optical responses suggest a less folded backbone and importance of the N-terminal when close to silica. We further discuss the thermodynamics of the interplay of charged and hydrophobic moieties of the polypeptide on association with the silica surface. The outcomes of this study may assist in the engineering of novel artificial bio-silica heterostructures.
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Affiliation(s)
- Victor V Volkov
- Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK.
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Antonov DO, Tambasova DP, Shishmakov AB, Kirilyuk IA, Kovaleva EG. Acidic and Electrosurface Properties of Binary TiO 2-SiO 2 Xerogels Using EPR of pH-Sensitive Nitroxides. Gels 2021; 7:119. [PMID: 34449616 PMCID: PMC8395927 DOI: 10.3390/gels7030119] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/03/2021] [Accepted: 08/06/2021] [Indexed: 11/16/2022] Open
Abstract
The binary xerogels TiO2-SiO2 are widely used as catalysts and their carriers in organic synthesis. Characterization and adjustment of the electrostatic properties of the surface and the local acidity inside the pores, are necessary for the further development of TiO2-SiO2 xerogels applications. This research investigates acid-base equilibria in the pores, and the surface electrostatic potential (SEP) of binary TiO2-SiO2 xerogels, by the EPR of stable pH-sensitive nitroxide radicals. These radicals are small enough to penetrate directly into the pores, and to be adsorbed onto the surface of the material under study. This makes it possible to obtain valuable information on the acidic and electrosurface properties of the studied system. The highest negative surface electrical charge associated with surface electrical potential (SEP) was equal to -196 ± 6 mV. It was induced by the surface of the sample with a 7% TiO2 content. The local acidity inside the pores of this sample was found to be higher, by approximately 1.49 pH units, as compared to that in the external bulk solution.
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Affiliation(s)
- Denis O. Antonov
- Institute of Chemical Engineering, Ural Federal University Named after the First President of Russia B N Yeltsin, Mira St., 19, 620002 Yekaterinburg, Russia; (D.P.T.); (E.G.K.)
| | - Daria P. Tambasova
- Institute of Chemical Engineering, Ural Federal University Named after the First President of Russia B N Yeltsin, Mira St., 19, 620002 Yekaterinburg, Russia; (D.P.T.); (E.G.K.)
| | - Andrey B. Shishmakov
- Laboratory of Organic Materials, I. Ya. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Akademicheskaya/S. Kovalevskoy, 22/20, 620990 Ekaterinburg, Russia;
| | - Igor A. Kirilyuk
- Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, Akad. Lavrent’ev Av. 9, 630090 Novosibirsk, Russia;
| | - Elena G. Kovaleva
- Institute of Chemical Engineering, Ural Federal University Named after the First President of Russia B N Yeltsin, Mira St., 19, 620002 Yekaterinburg, Russia; (D.P.T.); (E.G.K.)
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66
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Guo ZY, Zhang C, Jiao RW, Yao QH, Ye TX, Chen X. Construction of Metal Hydrate-Based Amorphous Magnetic Nanosheets for Enhanced Protein Enrichment and Immobilization. ACS APPLIED MATERIALS & INTERFACES 2021; 13:37915-37923. [PMID: 34328305 DOI: 10.1021/acsami.1c10086] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Inspired by the hierarchical fabrication technique, many self-assembly procedures have improved the construction of nanomaterials with unique physicochemical characteristics and multiple functions. The generation of multiple complexes is always accompanied by hierarchical structures and intriguing properties that are distinct from their individual segments. An interesting composite is amorphous magnetic Zn-Zr phosphate hydrated nanosheets (Zn-Zr APHNs), generated using templated synthesis and nanoparticle codeposition. The special porous structure of this construct, together with the abundance of metal ions and hydrate present, endows it with many interaction sites for proteins, provides high loading efficiency, and enhances bioactivity. Then, a series of proteins, including enzymes, was immobilized by the Zn-Zr APHNs by multiple interactions, high ionization, and larger surface of the nanosheets. In this study, novel methods for the enrichment of bioactive proteins while retaining the activity of protein payloads are presented. As a verification method, it is indicated that the Zn-Zr APHNs can deliver enzyme proteins (i.e., Cyt-c) to increase the catalytic activity with their biological function and structural integrity, resulting in a highly increased activity to free proteins.
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Affiliation(s)
- Zhi-Yong Guo
- Institute of Analytical Technology and Smart Instruments and College of Environment and Public Health, Xiamen Huaxia University, Xiamen 361024, China
- Xiamen Environmental Monitoring Engineering Technology Research Center, Xiamen 361024, China
| | - Chen Zhang
- Institute of Analytical Technology and Smart Instruments and College of Environment and Public Health, Xiamen Huaxia University, Xiamen 361024, China
| | - Rui-Wen Jiao
- Institute of Analytical Technology and Smart Instruments and College of Environment and Public Health, Xiamen Huaxia University, Xiamen 361024, China
| | - Qiu-Hong Yao
- Institute of Analytical Technology and Smart Instruments and College of Environment and Public Health, Xiamen Huaxia University, Xiamen 361024, China
| | - Ting-Xiu Ye
- College of Pharmacy, Xiamen Medical College, Xiamen 361005, China
| | - Xi Chen
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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67
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Zhao Q, Zhao DL, Nai MH, Chen SB, Chung TS. Nanovoid-Enhanced Thin-Film Composite Reverse Osmosis Membranes Using ZIF-67 Nanoparticles as a Sacrificial Template. ACS APPLIED MATERIALS & INTERFACES 2021; 13:33024-33033. [PMID: 34235913 DOI: 10.1021/acsami.1c07673] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this work, nanovoid-enhanced thin-film composite (TFC) membranes have been successfully fabricated using ZIF-67 nanoparticles as the sacrificial template. By incorporating different amounts of ZIF-67 during interfacial polymerization, the resultant TFC membranes can have different degrees of nanovoids after self-degradation of ZIF-67 in water, consequently influencing their physiochemical properties and separation performance. Nanovoid structures endow the membranes with additional passages for water molecules. Thus, all the newly developed TFC membranes exhibit better separation performance for brackish water reverse osmosis (BWRO) desalination than the pristine TFC membrane. The membrane made from 0.1 wt % ZIF-67 shows a water permeance of 2.94 LMH bar-1 and a salt rejection of 99.28% when being tested under BWRO at 20 bar. This water permeance is 53% higher than that of the pristine TFC membrane with the salt rejection well maintained.
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Affiliation(s)
- Qipeng Zhao
- Department of Chemical and Biomolecular Engineering, National University of Singapore 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Die Ling Zhao
- Department of Chemical and Biomolecular Engineering, National University of Singapore 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Mui Hoon Nai
- Department of Biomedical Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117583, Singapore
| | - Shing Bor Chen
- Department of Chemical and Biomolecular Engineering, National University of Singapore 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Tai-Shung Chung
- Department of Chemical and Biomolecular Engineering, National University of Singapore 4 Engineering Drive 4, Singapore 117585, Singapore
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
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68
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Vianello F, Cecconello A, Magro M. Toward the Specificity of Bare Nanomaterial Surfaces for Protein Corona Formation. Int J Mol Sci 2021; 22:7625. [PMID: 34299242 PMCID: PMC8305441 DOI: 10.3390/ijms22147625] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/08/2021] [Accepted: 07/15/2021] [Indexed: 12/16/2022] Open
Abstract
Aiming at creating smart nanomaterials for biomedical applications, nanotechnology aspires to develop a new generation of nanomaterials with the ability to recognize different biological components in a complex environment. It is common opinion that nanomaterials must be coated with organic or inorganic layers as a mandatory prerequisite for applications in biological systems. Thus, it is the nanomaterial surface coating that predominantly controls the nanomaterial fate in the biological environment. In the last decades, interdisciplinary studies involving not only life sciences, but all branches of scientific research, provided hints for obtaining uncoated inorganic materials able to interact with biological systems with high complexity and selectivity. Herein, the fragmentary literature on the interactions between bare abiotic materials and biological components is reviewed. Moreover, the most relevant examples of selective binding and the conceptualization of the general principles behind recognition mechanisms were provided. Nanoparticle features, such as crystalline facets, density and distribution of surface chemical groups, and surface roughness and topography were encompassed for deepening the comprehension of the general concept of recognition patterns.
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Affiliation(s)
| | | | - Massimiliano Magro
- Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell’Università 16, 35020 Legnaro, Italy; (F.V.); (A.C.)
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69
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Wageh S, Al-Ghamdi AA, Liu L. Photocatalytic antibacterial and osteoinductivity. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63742-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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70
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Michaelis M, Delle Piane M, Rothenstein D, Perry CC, Colombi Ciacchi L. Lessons from a Challenging System: Accurate Adsorption Free Energies at the Amino Acid/ZnO Interface. J Chem Theory Comput 2021; 17:4420-4434. [PMID: 34191508 DOI: 10.1021/acs.jctc.1c00165] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We undertake steps to overcome four challenges that have hindered the understanding of ZnO/biomolecule interfaces at the atomic scale: parametrization of a classical force field, ZnO surface termination and amino acid protonation state in methanol, and convergence of enhanced sampling molecular dynamics simulations. We predict adsorption free energies for histidine, serine, cysteine, and tryptophan in remarkable agreement with experimental measurements obtained via a novel indicator-displacement assay. Adsorption is driven by direct surface/amino-acid interactions mediated by terminal hydroxyl groups and stabilized by strongly structured methanol solvation shells.
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Affiliation(s)
- Monika Michaelis
- Hybrid Materials Interfaces Group, University of Bremen, Faculty of Production Engineering, Bremen Center for Computational Materials Science, Center for Environmental Research and Sustainable Technology (UFT), and MAPEX Center for Materials and Processes, Am Fallturm 1, Bremen 28359, Germany.,Biomolecular and Materials Interface Research Group, Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, United Kingdom
| | - Massimo Delle Piane
- Hybrid Materials Interfaces Group, University of Bremen, Faculty of Production Engineering, Bremen Center for Computational Materials Science, Center for Environmental Research and Sustainable Technology (UFT), and MAPEX Center for Materials and Processes, Am Fallturm 1, Bremen 28359, Germany.,Department of Applied Science and Technology, Politecnico di Torino, Torino 10129, Italy
| | - Dirk Rothenstein
- Institute for Materials Science, Department of Bioinspired Materials, University of Stuttgart, Heisenbergstrasse 3, Stuttgart 70569, Germany
| | - Carole C Perry
- Biomolecular and Materials Interface Research Group, Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, United Kingdom
| | - Lucio Colombi Ciacchi
- Hybrid Materials Interfaces Group, University of Bremen, Faculty of Production Engineering, Bremen Center for Computational Materials Science, Center for Environmental Research and Sustainable Technology (UFT), and MAPEX Center for Materials and Processes, Am Fallturm 1, Bremen 28359, Germany
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71
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Liu S, Li J, Wang H, Tao Q, Zhong L, Lu X. Broadband Raman scattering enhancement with reduced heat generation in a dielectric-metal hybrid nanocavity. OPTICS EXPRESS 2021; 29:20092-20104. [PMID: 34266106 DOI: 10.1364/oe.430760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 06/04/2021] [Indexed: 06/13/2023]
Abstract
The strongly localized electric field achieved in metallic nanoparticles (NPs) and nanostructures are commonly employed to realize surface-enhanced Raman scattering. However, the heat originating from the Ohmic loss of metals may lead to the damage of the analyzed molecules, which severely limits the practical applications of pure-metallic nanostructures. Here, we propose a dielectric-metallic hybrid nanocavity placing silicon (Si) NPs onto a gold (Au) film to realize broadband Raman scattering enhancement with significantly reduced heat generation. Our results reveal that the heat generation is dramatically reduced in the hybrid nanocavity as compared with its pure-metallic counterpart while a significantly enhanced electric field is maintained. We demonstrate numerically and experimentally that the optical resonances, which arise from the coherent coupling of the electric and magnetic dipoles excited inside the Si NP with their mirror images arisen from the Au film, can be employed to enhance the excitation and radiation of Raman signals, respectively. We find that the enhancement in the radiation of Raman signals plays a crucial role in enhancing the total Raman scattering. We also show that the hybrid nanocavity acts as a nano-antenna which effectively radiates Raman signals into the far-field. These findings indicate the advantages of such hybrid nanocavities in temperature-sensitive Raman scattering characterization and supply new strategies for designing nanoscale photonic devices of other functionalities with hybrid nanocavities.
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72
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A New Method for Dispersing Pristine Carbon Nanotubes Using Regularly Arranged S-Layer Proteins. NANOMATERIALS 2021; 11:nano11051346. [PMID: 34065322 PMCID: PMC8161383 DOI: 10.3390/nano11051346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/14/2021] [Accepted: 05/18/2021] [Indexed: 01/25/2023]
Abstract
Homogeneous and stable dispersions of functionalized carbon nanotubes (CNTs) in aqueous solutions are imperative for a wide range of applications, especially in life and medical sciences. Various covalent and non-covalent approaches were published to separate the bundles into individual tubes. In this context, this work demonstrates the non-covalent modification and dispersion of pristine multi-walled carbon nanotubes (MWNTs) using two S-layer proteins, namely, SbpA from Lysinibacillus sphaericus CCM2177 and SbsB from Geobacillus stearothermophilus PV72/p2. Both the S-layer proteins coated the MWNTs completely. Furthermore, it was shown that SbpA can form caps at the ends of MWNTs. Reassembly experiments involving a mixture of both S-layer proteins in the same solution showed that the MWNTs were primarily coated with SbsB, whereas SbpA formed self-assembled layers. The dispersibility of the pristine nanotubes coated with SbpA was determined by zeta potential measurements (−24.4 +/− 0.6 mV, pH = 7). Finally, the SbpA-coated MWNTs were silicified with tetramethoxysilane (TMOS) using a mild biogenic approach. As expected, the thickness of the silica layer could be controlled by the reaction time and was 6.3 +/− 1.25 nm after 5 min and 25.0 +/− 5.9 nm after 15 min. Since S-layer proteins have already demonstrated their capability to bind (bio)molecules in dense packing or to act as catalytic sites in biomineralization processes, the successful coating of pristine MWNTs has great potential in the development of new materials, such as biosensor architectures.
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73
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Jalili Z, Tayebee R, Zonoz FM. Eco-friendly synthesis of chromeno[4,3- b]chromenes with a new photosensitized WO 3/ZnO@NH 2-EY nanocatalyst. RSC Adv 2021; 11:18026-18039. [PMID: 35480176 PMCID: PMC9033197 DOI: 10.1039/d0ra09737c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 04/29/2021] [Indexed: 12/21/2022] Open
Abstract
A new heterogeneous photoredox nanocatalyst WO3/ZnO@NH2-EY (EY: eosin Y) was fabricated and characterized employing some instrumental techniques such as XRD, FT-IR, ICP, TGA, and SEM. The photocatalytic efficiency of the prepared material was investigated in the preparation of various chromeno[4,3-b]chromenes via a simple and practical method. The chromene derivatives were prepared through the condensation of aromatic aldehydes, dimedone, and coumarin under an open-air atmosphere in the presence of a green LED under solventless conditions. The significant advantages of this new method include low reaction time, easy work-up, cost-effective, wide substrate scope, excellent yield, and complete atom economy of the final products. Moreover, the prepared photocatalyst could be frequently recovered up to four times with only a little decrease in the catalytic activity. Furthermore, the progress of the condensation reaction is demonstrated to occur via a radical mechanism, which shows that reactive species such as ˙O2− and OH˙ together with h+ would be involved in the photocatalytic process. Stability and reusability studies also warranty good reproducibility of the nanocatalyst for at least 4 runs. Eventually, a hot filtration test ensured that the nanohybrid catalyst is stable in the reaction medium and its catalytic activity originates from the whole undecomposed conjugated composite. WO3/ZnO@NH2-EY is disclosed in the preparation of chromenes under air in the presence of a green LED. ˙O2−, OH˙, and h+ are proposed as reactive species and hot filtration test assured stability and reusability of the nanocatalyst.![]()
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Affiliation(s)
- Zahra Jalili
- Department of Chemistry, School of Sciences, Hakim Sabzevari University Sabzevar 96179-76487 Iran
| | - Reza Tayebee
- Department of Chemistry, School of Sciences, Hakim Sabzevari University Sabzevar 96179-76487 Iran
| | - Farrokhzad M Zonoz
- Department of Chemistry, School of Sciences, Hakim Sabzevari University Sabzevar 96179-76487 Iran
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74
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Yuan X, Pei F, Luo X, Hu H, Qian H, Wen P, Miao K, Guo S, Wang W, Feng G. Fabrication of ZnO/Au@Cu2O heterojunction towards deeply oxidative photodegradation of organic dyes. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118301] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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75
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Ahlam AA, Shaniba VS, Jayasree PR, Manish Kumar PR. Spondias pinnata (L.f.) Kurz Leaf Extract Derived Zinc Oxide Nanoparticles Induce Dual Modes of Apoptotic-Necrotic Death in HCT 116 and K562 Cells. Biol Trace Elem Res 2021; 199:1778-1801. [PMID: 32761516 DOI: 10.1007/s12011-020-02303-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 07/22/2020] [Indexed: 01/10/2023]
Abstract
This study evaluates the effects of phyto-derived zinc oxide nanoparticles (ZnONPs) on human cancer cells, colon carcinoma HCT 116, and chronic myelogenous leukemic K562, along with normal lymphocytes/erythrocytes. The commercial, chemically synthesized ZnONPs (cZnONPs) were also assessed in parallel. Using an eco-friendly approach devoid of harmful chemicals, biogenic nanoparticles were synthesized from aqueous leaf extract of Spondias pinnata (SpLZnONPs) by a sol-gel method. Optical, structural, and elemental characterization of both particle types were carried out deploying UV-Vis/photoluminescence spectroscopy, FTIR, XRD, FESEM, HRTEM, and EDX. Both SpLZnONPs and cZnONPs displayed hexagonal wurtzite structure with particle sizes averaging 30 and 48.5 nm, respectively. SpLZnONPs were found to be cytotoxic to both cancer cell types while cZnONPs exhibited toxicity only against HCT 116 cells. Interestingly, the cytomorphological changes and analysis of DNA laddering pattern observed in these treated cells were indicative of simultaneous induction of dual modes of death involving apoptosis and necrosis. Flow cytometric analysis of cell-cycle distribution, clonogenic, wound healing, and comet assays provided evidences of the antiproliferative potential of the tested nanoparticles. Apoptosis induction via oxidative stress-mediated Ca2+ release, ROS generation, loss of mitochondrial membrane potential, and externalization of phosphatidylserine was also determined biochemically. Relative expression of apoptotic genes was quantified using RT-qPCR and Western blot analysis. Mitotic index analysis, MTT, and hemolytic assays on lymphocytes and erythrocytes clearly revealed the absence of any deleterious effect(s) of SpLZnONPs in these cells compared with the toxicity of the chemically derived cZnONPs, thereby attesting to the biocompatibility and selective action of the biogenic nanoparticles.
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Affiliation(s)
- Abdul Aziz Ahlam
- Recombinant DNA Laboratory, Department of Biotechnology, University of Calicut, Kerala, 673635, India
| | - V S Shaniba
- Recombinant DNA Laboratory, Department of Biotechnology, University of Calicut, Kerala, 673635, India
| | - P R Jayasree
- School of Health Sciences, University of Calicut, Kerala, 673635, India
| | - P R Manish Kumar
- Recombinant DNA Laboratory, Department of Biotechnology, University of Calicut, Kerala, 673635, India.
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76
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Mino L, Morales-García Á, Bromley ST, Illas F. Understanding the nature and location of hydroxyl groups on hydrated titania nanoparticles. NANOSCALE 2021; 13:6577-6585. [PMID: 33885537 DOI: 10.1039/d1nr00610j] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
TiO2 nanoparticles (NPs) are intensively studied and widely used due to their huge potential in numerous applications involving their interaction with ultraviolet light (e.g., photocatalysis and sunscreens). Typically, these NPs are in water-containing environments and thus tend to be hydrated. As such, there is a growing need to better understand the physicochemical properties of hydrated TiO2 NPs in order to improve their performance in photochemical applications (e.g., photocatalytic water splitting) and to minimise their environmental impact (e.g., potential biotoxicity). To help address the need for reliable and detailed data on how nano-titania interacts with water, we present a systematic experimental and theoretical study of surface hydroxyl (OH) groups on photoactive anatase TiO2 NPs. Employing well-defined experimentally synthesised NPs and detailed realistic NP models, we obtain the measured and computed infrared spectra of the surface hydroxyls, respectively. By comparing the experimental and theoretical spectra we are able to identify the type and location of different OH groups in these NP systems. Specifically, our study allows us to provide unprecedented and detailed information about the coverage-dependent distribution of hydroxyl groups on the surface of experimental titania NPs, the degree of their H-bonding interactions and their associated assigned vibrational modes. Our work promises to lead to new routes for developing new and safe nanotechnologies based on hydrated TiO2 NPs.
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Affiliation(s)
- Lorenzo Mino
- Department of Chemistry and NIS Centre, University of Torino, via Giuria 7, 10125 Torino, Italy.
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77
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Lee D, Park D, Shin K, Seo HM, Lee H, Choi Y, Kim JW. ZnO nanoparticles-laden cellulose nanofibers-armored Pickering emulsions with improved UV protection and water resistance. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.01.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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78
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Cai J, Zang X, Wu Z, Liu J, Wang D. Altered protein S-glutathionylation depicts redox imbalance triggered by transition metal oxide nanoparticles in a breastfeeding system. NANOIMPACT 2021; 22:100305. [PMID: 35559962 DOI: 10.1016/j.impact.2021.100305] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 01/25/2021] [Accepted: 02/19/2021] [Indexed: 06/15/2023]
Abstract
Nanosafety has become a public concern following nanotechnology development. By now, attention has seldom been paid to breastfeeding system, which is constructed by mammary physiological structure and derived substances (endogenous or exogenous), cells, tissues, organs, and individuals (mother and child), connecting environment and organism, and spans across mother-child dyad. Thus, breastfeeding system is a center of nutrients transport and a unique window of toxic susceptibility in the mother-child dyad. We applied metabolomics combined with redox proteomics to depict how nanoparticles cause metabolic burden via their spontaneous redox cycling in lactating mammary glands. Two widely used nanoparticles [titanium dioxide (nTiO2) and zinc oxide (nZnO)] were exposed to lactating mice via intranasal administration. Biodistribution and biopersistence of nTiO2 and nZnO in mammary glands destroyed its structure, reflective of significantly reduced claudin-3 protein level by 32.1% (P < 0.01) and 47.8% (P < 0.01), and significantly increased apoptosis index by 85.7 (P < 0.01) and 100.3 (P < 0.01) fold change, respectively. Airway exposure of nTiO2 trended to reduced milk production by 22.7% (P = 0.06), while nZnO significantly reduced milk production by 33.0% (P < 0.01). Metabolomics analysis revealed a metabolic shift by nTiO2 or nZnO, such as increased glycolysis (nTiO2: fold enrichment = 3.31, P < 0.05; nZnO: fold enrichment = 3.68, P < 0.05), glutathione metabolism (nTiO2: fold enrichment = 5.57, P < 0.01; nZnO: fold enrichment = 4.43, P < 0.05), and fatty acid biosynthesis (nTiO2: fold enrichment = 3.52, P < 0.05; nZnO: fold enrichment = 3.51, P < 0.05) for tissue repair at expense of lower milk fat synthesis (35.7% reduction by nTiO2; 51.8% reduction by nZnO), and finally led to oxidative stress of mammary glands. The increased GSSG/GSH ratio (57.5% increase by nTiO2; 105% increase by nZnO) with nanoparticle exposure confirmed an alteration in the redox state and a metabolic shift in mammary glands. Redox proteomics showed that nanoparticles induced S-glutathionylation (SSG) modification at Cys sites of proteins in a nanoparticle type-dependent manner. The nTiO2 induced more protein SSG modification sites (nTiO2: 21; nZnO:16), whereas nZnO induced fewer protein SSG modification sites but at deeper SSG levels (26.6% higher in average of nZnO than that of nTiO2). In detail, SSG modification by nTiO2 was characterized by Ltf at Cys423 (25.3% increase), and Trf at Cys386;395;583 (42.3%, 42.3%, 22.8% increase) compared with control group. While, SSG modification by nZnO was characterized by Trfc at Cys365 (71.3% increase) and Fasn at Cys1010 (41.0% increase). The discovery of SSG-modified proteins under airway nanoparticle exposure further supplemented the oxidative stress index and mammary injury index, and deciphered precise mechanisms of nanotoxicity into a molecular level. The unique quantitative site-specific redox proteomics and metabolomics can serve as a new technique to identify nanotoxicity and provide deep insights into nanoparticle-triggered oxidative stress, contributing to a healthy breastfeeding environment.
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Affiliation(s)
- Jie Cai
- College of Animal Sciences, Dairy Science Institute, MOE Key Laboratory of Molecular Animal Nutrition, Zhejiang University, Hangzhou 310029, PR China.
| | - Xinwei Zang
- College of Animal Sciences, Dairy Science Institute, MOE Key Laboratory of Molecular Animal Nutrition, Zhejiang University, Hangzhou 310029, PR China.
| | - Zezhong Wu
- College of Animal Sciences, Dairy Science Institute, MOE Key Laboratory of Molecular Animal Nutrition, Zhejiang University, Hangzhou 310029, PR China
| | - Jianxin Liu
- College of Animal Sciences, Dairy Science Institute, MOE Key Laboratory of Molecular Animal Nutrition, Zhejiang University, Hangzhou 310029, PR China.
| | - Diming Wang
- College of Animal Sciences, Dairy Science Institute, MOE Key Laboratory of Molecular Animal Nutrition, Zhejiang University, Hangzhou 310029, PR China.
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Lee JH, You SM, Luo K, Ko JS, Jo AH, Kim YR. Synthetic Ligand-Coated Starch Magnetic Microbeads for Selective Extraction of Food Additive Silicon Dioxide from Commercial Processed Food. NANOMATERIALS 2021; 11:nano11020532. [PMID: 33669702 PMCID: PMC7922398 DOI: 10.3390/nano11020532] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/13/2021] [Accepted: 02/15/2021] [Indexed: 11/16/2022]
Abstract
The amorphous form of silicon dioxide has long been regarded as a safe food additive (E551) that is widely used in commercially processed food as an anticaking agent. However, starting with titanium dioxide, there have been growing safety concerns regarding to the use of nanoscale silicon dioxide particles in food as food additives. The size, morphology, and chemical properties of inorganic food materials are important parameters to determine its potential toxicity. Therefore, an effective means of extracting an intact form of SiO2 from food without altering the physicochemical property of SiO2 particles is of great need to accurately monitor its characteristics. Here, we report on an effective magnetic separation method to extract food additive SiO2 from food by utilizing a diatom-originated peptide with a specific affinity to SiO2 particles. The affinity-based magnetic separation was found to be specific to SiO2 particles over other types of inorganic food additives such as titanium dioxide and zinc oxide. The size and morphology of SiO2 were shown to not be affected by the extraction processes. This method was successfully applied to extract and characterize the food additive SiO2 from six different types of commercial food.
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80
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Saif B, Yang P. Metal-Protein Hybrid Materials with Desired Functions and Potential Applications. ACS APPLIED BIO MATERIALS 2021; 4:1156-1177. [PMID: 35014472 DOI: 10.1021/acsabm.0c01375] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Metal nanohybrids are fast emerging functional nanomaterials with advanced structures, intriguing physicochemical properties, and a broad range of important applications in current nanoscience research. Significant efforts have been devoted toward design and develop versatile metal nanohybrid systems. Among numerous biological components, diverse proteins offer avenues for making advanced multifunctional systems with unusual properties, desired functions, and potential applications. This review discusses the rational design, properties, and applications of metal-protein nanohybrid materials fabricated from proteins and inorganic components. The construction of functional biomimetic nanohybrid materials is first briefly introduced. The properties and functions of these hybrid materials are then discussed. After that, an overview of promising application of biomimetic metal-protein nanohybrid materials is provided. Finally, the key challenges and outlooks related to this fascinating research area are also outlined.
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Affiliation(s)
- Bassam Saif
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P.R. China
| | - Peng Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P.R. China
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81
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Perera GS, Ahmed T, Heiss L, Walia S, Bhaskaran M, Sriram S. Rapid and Selective Biomarker Detection with Conductometric Sensors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2005582. [PMID: 33502115 DOI: 10.1002/smll.202005582] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/18/2020] [Indexed: 06/12/2023]
Abstract
The biomarker detection in human body fluids is crucial as biomarkers are important in diagnosing diseases. Conventional invasive techniques for biomarker detection are associated with infection, tissue damage, and discomfort. Non-invasive devices are an attractive alternative. Here, metal oxide (oxygen-deficient zinc oxide, ZnO) based conductometric sensors with two-terminal electrodes for rapid detection of biomarkers in real-time, are presented. This platform can be engineered for non-invasive, sensitive, and on-demand selective detection of biomarkers based on surface functionalization. The three novelties in this biosensing technique include an on-demand target selection device platform, short (<10 min) incubation times, and real-time monitoring of the biomarker of interest by electrical (resistance change) measurements. Cardiac inflammatory biomarkers interleukin 6 (IL-6) and C-reactive protein (CRP) are used as the model antigens. The devices can detect 100× lower concentration of IL-6 than healthy levels in human saliva and sweat and 1000× and ≈50× lower CRP concentrations than healthy levels in human saliva and sweat, respectively. The devices show high selectivity for IL-6 and CRP antigens when tested with a mixture of biomarkers. This sensor platform can be extended to selective measurements for viruses or DNA screening, which enables a new category of compact and rapid point-of-care medical devices.
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Affiliation(s)
- Ganganath S Perera
- Functional Materials and Microsystems Research Group and the Micro Nano Research Facility, RMIT University, Melbourne, Victoria, 3001, Australia
| | - Taimur Ahmed
- Functional Materials and Microsystems Research Group and the Micro Nano Research Facility, RMIT University, Melbourne, Victoria, 3001, Australia
| | - Leah Heiss
- School of Design, RMIT University, Melbourne, Victoria, 3001, Australia
| | - Sumeet Walia
- Functional Materials and Microsystems Research Group and the Micro Nano Research Facility, RMIT University, Melbourne, Victoria, 3001, Australia
- School of Engineering, RMIT University, Melbourne, Victoria, 3001, Australia
| | - Madhu Bhaskaran
- Functional Materials and Microsystems Research Group and the Micro Nano Research Facility, RMIT University, Melbourne, Victoria, 3001, Australia
| | - Sharath Sriram
- Functional Materials and Microsystems Research Group and the Micro Nano Research Facility, RMIT University, Melbourne, Victoria, 3001, Australia
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82
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Svensson FG, Kessler VG. Interaction between dopamine and the [HPW12O40]2−Keggin ion–an X-ray and NMR study. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129343] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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83
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84
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Abdelhamid MAA, Pack SP. Biomimetic and bioinspired silicifications: Recent advances for biomaterial design and applications. Acta Biomater 2021; 120:38-56. [PMID: 32447061 DOI: 10.1016/j.actbio.2020.05.017] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 05/06/2020] [Accepted: 05/13/2020] [Indexed: 12/12/2022]
Abstract
The rational design and controllable synthesis of functional silica-based materials have gained increased interest in a variety of biomedical and biotechnological applications due to their unique properties. The current review shows that marine organisms, such as siliceous sponges and diatoms, could be the inspiration for the fabrication of advanced biohybrid materials. Several biomolecules were involved in the molecular mechanism of biosilicification in vivo. Mimicking their behavior, functional silica-based biomaterials have been generated via biomimetic and bioinspired silicification in vitro. Additionally, several advanced technologies were developed for in vitro and in vivo immobilization of biomolecules with potential applications in biocatalysis, biosensors, bioimaging, and immunoassays. A thin silica layer could coat a single living cell or virus as a protective shell offering new opportunities in biotechnology and nanomedicine fields. Promising nanotechnologies have been developed for drug encapsulation and delivery in a targeted and controlled manner, in particular for poorly soluble hydrophobic drugs. Moreover, biomimetic silica, as a morphogenetically active biocompatible material, has been utilized in the field of bone regeneration and in the development of biomedical implantable devices. STATEMENT OF SIGNIFICANCE: In nature, silica-based biomaterials, such as diatom frustules and sponge spicules, with high mechanical and physical properties were created under biocompatible conditions. The fundamental knowledge underlying the molecular mechanisms of biosilica formation could inspire engineers and chemists to design novel hybrid biomaterials using molecular biomimetic strategies. The production of such biohybrid materials brings the biosilicification field closer to practical applications. This review starts with the biosilicification process of sponges and diatoms with recently updated researches. Then, this article covers recent advances in the design of silica-based biomaterials and their potential applications in the fields of biotechnology and nanomedicine, highlighting several promising technologies for encapsulation of functional proteins and living cells, drug delivery and the preparation of scaffolds for bone regeneration.
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Affiliation(s)
- Mohamed A A Abdelhamid
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea; Department of Botany and Microbiology, Faculty of Science, Minia University, Minia 61519, Egypt
| | - Seung Pil Pack
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea.
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85
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Li L, Belcher AM, Loke DK. Simulating selective binding of a biological template to a nanoscale architecture: a core concept of a clamp-based binding-pocket-favored N-terminal-domain assembly. NANOSCALE 2020; 12:24214-24227. [PMID: 33289758 DOI: 10.1039/d0nr07320b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The biological template and its mutants have vital significance in next generation remediation, electrochemical, photovoltaic, catalytic, sensing and digital memory devices. However, a microscopic model describing the biotemplating process is generally lacking on account of modelling complexity, which has prevented widespread commercial use of biotemplates. Here, we demonstrate M13-biotemplating kinetics in atomic resolution by leveraging large-scale molecular dynamics (MD) simulations. The model reveals the assembly of gold nanoparticles on two experimentally-based M13 phage types using full M13-capsid structural models and with polarizable gold nanoparticles in explicit solvent. Both mechanistic and structural insights into the selective binding affinity of the M13 phage to gold nanoparticles are obtained based on a previously unconsidered clamp-based binding-pocket-favored N-terminal-domain assembly and also on surface-peptide flexibility. These results provide a deeper level of understanding of protein sequence-based affinity and open the route for genetically engineering a wide range of 3D electrodes for high-density low-cost device integration.
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Affiliation(s)
- Lunna Li
- Department of Biological Engineering, David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology (MIT), Cambridge, Massachusetts 02139, USA.
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86
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Wang K, Albert K, Mosser G, Haye B, Percot A, Paris C, Peccate C, Trichet L, Coradin T. Self-assembly/condensation interplay in nano-to-microfibrillar silicified fibrin hydrogels. Int J Biol Macromol 2020; 164:1422-1431. [DOI: 10.1016/j.ijbiomac.2020.07.220] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/10/2020] [Accepted: 07/25/2020] [Indexed: 12/15/2022]
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87
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Li Y, Liao C, Tjong SC. Recent Advances in Zinc Oxide Nanostructures with Antimicrobial Activities. Int J Mol Sci 2020; 21:E8836. [PMID: 33266476 PMCID: PMC7700383 DOI: 10.3390/ijms21228836] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/18/2020] [Accepted: 11/19/2020] [Indexed: 12/18/2022] Open
Abstract
This article reviews the recent developments in the synthesis, antibacterial activity, and visible-light photocatalytic bacterial inactivation of nano-zinc oxide. Polycrystalline wurtzite ZnO nanostructures with a hexagonal lattice having different shapes can be synthesized by means of vapor-, liquid-, and solid-phase processing techniques. Among these, ZnO hierarchical nanostructures prepared from the liquid phase route are commonly used for antimicrobial activity. In particular, plant extract-mediated biosynthesis is a single step process for preparing nano-ZnO without using surfactants and toxic chemicals. The phytochemical molecules of natural plant extracts are attractive agents for reducing and stabilizing zinc ions of zinc salt precursors to form green ZnO nanostructures. The peel extracts of certain citrus fruits like grapefruits, lemons and oranges, acting as excellent chelating agents for zinc ions. Furthermore, phytochemicals of the plant extracts capped on ZnO nanomaterials are very effective for killing various bacterial strains, leading to low minimum inhibitory concentration (MIC) values. Bioactive phytocompounds from green ZnO also inhibit hemolysis of Staphylococcus aureus infected red blood cells and inflammatory activity of mammalian immune system. In general, three mechanisms have been adopted to explain bactericidal activity of ZnO nanomaterials, including direct contact killing, reactive oxygen species (ROS) production, and released zinc ion inactivation. These toxic effects lead to the destruction of bacterial membrane, denaturation of enzyme, inhibition of cellular respiration and deoxyribonucleic acid replication, causing leakage of the cytoplasmic content and eventual cell death. Meanwhile, antimicrobial activity of doped and modified ZnO nanomaterials under visible light can be attributed to photogeneration of ROS on their surfaces. Thus particular attention is paid to the design and synthesis of visible light-activated ZnO photocatalysts with antibacterial properties.
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Affiliation(s)
- Yuchao Li
- Department of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China;
| | - Chengzhu Liao
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Sie Chin Tjong
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
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88
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Ultra-selective determination of carbofuran by electrochemical sensor based on nickel oxide nanoparticles stabilized by ionic liquid. MONATSHEFTE FUR CHEMIE 2020. [DOI: 10.1007/s00706-020-02704-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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89
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Sivan S, Shankar SS, N S, Kandambath Padinjareveetil A, Pilankatta R, Kumar VBS, Mathew B, George B, Makvandi P, Černík M, Padil VVT, Varma RS. Fabrication of a Greener TiO 2@Gum Arabic-Carbon Paste Electrode for the Electrochemical Detection of Pb 2+ Ions in Plastic Toys. ACS OMEGA 2020; 5:25390-25399. [PMID: 33043219 PMCID: PMC7542840 DOI: 10.1021/acsomega.0c03781] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 09/14/2020] [Indexed: 05/25/2023]
Abstract
A novel greener methodology is reported for the synthesis of titanium dioxide (TiO2) nanoparticles (NPs) using gum Arabic (Acacia senegal) and the characterization of the ensuing TiO2 NPs by various techniques such as X-ray diffraction (XRD), Fourier transform infrared, Raman spectroscopy, scanning electron microscopy-energy dispersive X-ray, transmission electron microscopy (TEM), high resolution-TEM, and UV-visible spectroscopy. The XRD analysis confirmed the formation of TiO2 NPs in the anatase phase with high crystal purity, while TEM confirmed the size to be 8.9 ± 1.5 nm with a spherical morphology. The electrode for the electrochemical detection of Pb2+ ions was modified by a carbon paste fabricated using the synthesized TiO2 NPs. Compared to the bare electrode, the fabricated electrode exhibited improved electro-catalytic activity toward the reduction of Pb2+ ions. The detection limit, quantification limit, and the sensitivity of the developed electrode were observed by using differential pulse voltammetry to be 506 ppb, 1.68 ppm, and 0.52 ± 0.01 μA μM-1, respectively. The constructed electrode was tested for the detection of lead content in plastic toys.
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Affiliation(s)
| | - Sarojini Sharath Shankar
- Department
of Biochemistry and Molecular Biology, School of Biological Sciences, Central University of Kerala, Periye 671316, India
| | - Sajina N
- Department
of Chemistry, School of Physical Sciences, Central University of Kerala, Periye 671316 India
| | | | - Rajendra Pilankatta
- Department
of Biochemistry and Molecular Biology, School of Biological Sciences, Central University of Kerala, Periye 671316, India
| | - V. B. Sameer Kumar
- Department
of Biochemistry and Molecular Biology, School of Biological Sciences, Central University of Kerala, Periye 671316, India
| | - Beena Mathew
- School
of Chemical Sciences, Mahatma Gandhi University, Priyadarsini Hills, Kottayam 686560, Kerala, India
| | - Bini George
- Department
of Chemistry, School of Physical Sciences, Central University of Kerala, Periye 671316 India
| | - Pooyan Makvandi
- Chemistry
Department, Faculty of Science, Shahid Chamran
University of Ahvaz, Ahvaz 6153753843, Iran
- Institute
for Polymers, Composites, and Biomaterials (IPCB), National Research Council (CNR), Naples 80125, Italy
| | - Miroslav Černík
- Department
of Nanomaterials in Natural Sciences, Institute for Nanomaterials,
Advanced Technologies and Innovation (CXI), Technical University of Liberec (TUL), Studentská 1402/2, Liberec 1 461 17, Czech
Republic
| | - Vinod V. T. Padil
- Department
of Nanomaterials in Natural Sciences, Institute for Nanomaterials,
Advanced Technologies and Innovation (CXI), Technical University of Liberec (TUL), Studentská 1402/2, Liberec 1 461 17, Czech
Republic
| | - Rajender S. Varma
- Regional
Centre of Advanced Technologies and Materials, Palacký University in Olomouc, Šlechtitelů 27, Olomouc 783 71, Czech
Republic
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90
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Paczesny J, Bielec K. Application of Bacteriophages in Nanotechnology. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1944. [PMID: 33003494 PMCID: PMC7601235 DOI: 10.3390/nano10101944] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 09/25/2020] [Accepted: 09/27/2020] [Indexed: 02/06/2023]
Abstract
Bacteriophages (phages for short) are viruses, which have bacteria as hosts. The single phage body virion, is a colloidal particle, often possessing a dipole moment. As such, phages were used as perfectly monodisperse systems to study various physicochemical phenomena (e.g., transport or sedimentation in complex fluids), or in the material science (e.g., as scaffolds). Nevertheless, phages also execute the life cycle to multiply and produce progeny virions. Upon completion of the life cycle of phages, the host cells are usually destroyed. Natural abilities to bind to and kill bacteria were a starting point for utilizing phages in phage therapies (i.e., medical treatments that use phages to fight bacterial infections) and for bacteria detection. Numerous applications of phages became possible thanks to phage display-a method connecting the phenotype and genotype, which allows for selecting specific peptides or proteins with affinity to a given target. Here, we review the application of bacteriophages in nanoscience, emphasizing bio-related applications, material science, soft matter research, and physical chemistry.
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Affiliation(s)
- Jan Paczesny
- Institute of Physical Chemistry of the Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland;
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91
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Porous carbon nanowire array for surface-enhanced Raman spectroscopy. Nat Commun 2020; 11:4772. [PMID: 32973145 PMCID: PMC7519110 DOI: 10.1038/s41467-020-18590-7] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 08/26/2020] [Indexed: 01/09/2023] Open
Abstract
Surface-enhanced Raman spectroscopy (SERS) is a powerful tool for vibrational spectroscopy as it provides several orders of magnitude higher sensitivity than inherently weak spontaneous Raman scattering by exciting localized surface plasmon resonance (LSPR) on metal substrates. However, SERS can be unreliable for biomedical use since it sacrifices reproducibility, uniformity, biocompatibility, and durability due to its strong dependence on “hot spots”, large photothermal heat generation, and easy oxidization. Here, we demonstrate the design, fabrication, and use of a metal-free (i.e., LSPR-free), topologically tailored nanostructure composed of porous carbon nanowires in an array as a SERS substrate to overcome all these problems. Specifically, it offers not only high signal enhancement (~106) due to its strong broadband charge-transfer resonance, but also extraordinarily high reproducibility due to the absence of hot spots, high durability due to no oxidization, and high compatibility to biomolecules due to its fluorescence quenching capability. SERS can be unreliable for biomedical use. The authors demonstrate a metal-free nanostructure composed of porous carbon nanowires in an array as a SERS substrate. It offers 106 signal enhancement due to strong broadband charge-transfer resonance and substrate-to-substrate, spot-to-spot and time-to-time consistency in the SERS spectrum.
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92
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Amoah PK, Košiček M, Perez J, Sunday CE, Moreau S, Cvelbar U, Obeng YS. Broadband Microwave Signal Dissipation in Nanostructured Copper Oxide at Air-Film Interface. ELECTROANAL 2020; 32:10.1002/elan.202060246. [PMID: 33658747 PMCID: PMC7919756 DOI: 10.1002/elan.202060246] [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: 08/28/2020] [Accepted: 08/31/2020] [Indexed: 11/07/2022]
Abstract
Contactless broadband microwave spectroscopy (a.k.a., broadband dielectric spectroscopy (BDS)) enables the accurate operando analysis of the electrical and magnetic properties without compromising the kinetic conditions of the experiment. The BDS method is sensitive to the actual electronic structure of species, and it is most relevant to redox reactions involving charge-transfer. In this paper, using BDS, we have studied and characterized the oxidation of a copper layer in a purposely built prototypical 3-D integrated circuit (3D-IC) during cycled high-temperature storage. We show that the microwave signal loss in these devices is attributable to the energy dissipation through the signal's interactions with the copper oxidation product. The results demonstrate that contactless BDS could be leveraged into an excellent metrology for applications that use metal oxide as sensing elements.
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Affiliation(s)
- Papa K Amoah
- Physical Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899
| | - Martin Košiček
- Jožef Stefan Institute, Ljubljana, Slovenia
- Jožef Stefan International Postgraduate School, Ljubljana, Slovenia
| | - Jesus Perez
- Physical Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899
| | - Christopher E Sunday
- Physical Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899
- Functional Material Group, Department of Chemical Engineering, Cape Peninsula University of Technology, Symphony Way, Bellville, 7535, Cape Town, South Africa
| | | | | | - Yaw S Obeng
- Physical Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899
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93
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Wang R, Shi M, Xu F, Qiu Y, Zhang P, Shen K, Zhao Q, Yu J, Zhang Y. Graphdiyne-modified TiO 2 nanofibers with osteoinductive and enhanced photocatalytic antibacterial activities to prevent implant infection. Nat Commun 2020; 11:4465. [PMID: 32901012 PMCID: PMC7479592 DOI: 10.1038/s41467-020-18267-1] [Citation(s) in RCA: 136] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Accepted: 08/07/2020] [Indexed: 02/03/2023] Open
Abstract
Titanium implants have been widely used in bone tissue engineering for decades. However, orthopedic implant-associated infections increase the risk of implant failure and even lead to amputation in severe cases. Although TiO2 has photocatalytic activity to produce reactive oxygen species (ROS), the recombination of generated electrons and holes limits its antibacterial ability. Here, we describe a graphdiyne (GDY) composite TiO2 nanofiber that combats implant infections through enhanced photocatalysis and prolonged antibacterial ability. In addition, GDY-modified TiO2 nanofibers exert superior biocompatibility and osteoinductive abilities for cell adhesion and differentiation, thus contributing to the bone tissue regeneration process in drug-resistant bacteria-induced implant infection.
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Affiliation(s)
- Rui Wang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, 430079, Wuhan, PR China
- Medical Research Institute, School of Medicine, Wuhan University, 430071, Wuhan, PR China
| | - Miusi Shi
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, 430079, Wuhan, PR China
| | - Feiyan Xu
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, 528200, Foshan, PR China
- State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122#, 430070, Wuhan, PR China
| | - Yun Qiu
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, 430079, Wuhan, PR China
| | - Peng Zhang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, 430079, Wuhan, PR China
| | - Kailun Shen
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, 430079, Wuhan, PR China
| | - Qin Zhao
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, 430079, Wuhan, PR China
| | - Jiaguo Yu
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, 528200, Foshan, PR China.
- State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122#, 430070, Wuhan, PR China.
| | - Yufeng Zhang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, 430079, Wuhan, PR China.
- Medical Research Institute, School of Medicine, Wuhan University, 430071, Wuhan, PR China.
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94
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Azizi D, Larachi F, Garnier A, Lagüe P, Levasseur B. Sorption of aqueous amino acid species on sulphidic mineral surfaces—DFT study and insights on biosourced‐reagent mineral flotation. CAN J CHEM ENG 2020. [DOI: 10.1002/cjce.23841] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Dariush Azizi
- Department of Chemical Engineering Université Laval Québec Québec Canada
| | - Faïçal Larachi
- Department of Chemical Engineering Université Laval Québec Québec Canada
| | - Alain Garnier
- Department of Chemical Engineering Université Laval Québec Québec Canada
| | - Patrick Lagüe
- Department of Biochemistry, Microbiology & Bioinformatics Université Laval Québec Québec Canada
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95
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Preparation of Biocomposite Soft Nanoparticles Composed of Poly(Propylene Oxide) and the Polymer-Binding Peptides. Processes (Basel) 2020. [DOI: 10.3390/pr8070859] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
The molecular recognition capability of naturally occurring biomolecules is generally expressed against biomolecules in the biological milieu. Recently, it was demonstrated that the specific interactions of biomolecules such as short peptides were applicable to artificial materials. We have developed peptides with specific affinities for synthetic polymers toward functional biocomposite polymeric materials. In this study, we demonstrated the preparation of biocomposite nanoparticles composed of poly(propylene oxide) (PPO) and PPO-binding peptides. A simple injection of a concentrated PPO solution dissolved in an organic solvent into the peptide solution under sonication resulted in the formation of nanospherical structures. Morphological observation indicated characteristic softness and high applicability as a molecular carrier of the biocomposite nanoparticles. Structural characterization of PPO and the PPO-binding peptide revealed the structural conformability of these molecules to interact specifically with each other. Our findings expand the potential applicability of polymer-binding peptides for the future construction of biomedical materials composed of peptides and various polymers.
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96
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Zhou G, Huang L. A review of recent advances in computational and experimental analysis of first adsorbed water layer on solid substrate. MOLECULAR SIMULATION 2020. [DOI: 10.1080/08927022.2020.1786086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Guobing Zhou
- School of Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, OK, USA
| | - Liangliang Huang
- School of Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, OK, USA
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97
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Moura HM, Unterlass MM. Biogenic Metal Oxides. Biomimetics (Basel) 2020; 5:E29. [PMID: 32585892 PMCID: PMC7345149 DOI: 10.3390/biomimetics5020029] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 06/16/2020] [Accepted: 06/19/2020] [Indexed: 12/11/2022] Open
Abstract
Biogenic metal oxides (MxOy) feature structures as highly functional and unique as the organisms generating them. They have caught the attention of scientists for the development of novel materials by biomimicry. In order to understand how biogenic MxOy could inspire novel technologies, we have reviewed examples of all biogenic MxOy, as well as the current state of understanding of the interactions between the inorganic MxOy and the biological matter they originate from and are connected to. In this review, we first summarize the origins of the precursors that living nature converts into MxOy. From the point-of-view of our materials chemists, we present an overview of the biogenesis of silica, iron and manganese oxides, as the only reported biogenic MxOy to date. These MxOy are found across all five kingdoms (bacteria, protoctista, fungi, plants and animals). We discuss the key molecules involved in the biosynthesis of MxOy, the functionality of the MxOy structures, and the techniques by which the biogenic MxOy can be studied. We close by outlining the biomimetic approaches inspired by biogenic MxOy materials and their challenges, and we point at promising directions for future organic-inorganic materials and their synthesis.
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Affiliation(s)
- Hipassia M. Moura
- Institute of Materials Chemistry, Vienna University of Technology, 1060 Vienna, Austria;
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, 1060 Vienna, Austria
| | - Miriam M. Unterlass
- Institute of Materials Chemistry, Vienna University of Technology, 1060 Vienna, Austria;
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, 1060 Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090 Vienna, Austria
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98
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Zapata A, Nguyen ML, Ling C, Rogers J, Domiano S, Hayzelden C, Wheeler KE. The role of human serum and solution chemistry in fibrinogen peptide-nanoparticle interactions. NANOSCALE ADVANCES 2020; 2:2429-2440. [PMID: 32864565 PMCID: PMC7448706 DOI: 10.1039/c9na00793h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
In living systems, the biomolecules that coat nanoparticles (NPs) alter the NP biological identity and response. Although some biomolecules are more effective in mediating NP stability or biological fate, it is difficult to monitor an individual biomolecule within the complexity of the biota. To understand the dependence of protein-NP interactions on common variations in blood, we have evaluated binding between silica NPs and a model gamma-fibrinogen (GF) peptide. Fibrinogen is commonly identified within the protein corona fingerprint of human serum, but its abundance on the NP varies. To assess the relative importance of human serum and solution conditions, GF peptide and silica NP interactions were evaluated with and without serum across pH, NaCl concentrations, and glucose concentrations. Initial evaluation of the GF peptide and silica NP complexes using circular dichroism and dynamic light scattering show little change in the secondary structure of the peptide and no significant agglomeration of NPs, suggesting peptide-NP complexes are stable across study conditions. Fluorescence anisotropy was used to monitor GF peptide-NP binding. Both with and without serum, binding constants for the gamma-fibrinogen peptide vary significantly upon addition of diluted HS (1:500) and 29 mM sodium chloride. Yet, results indicated that gamma-fibrinogen binding interactions with silica NPs are comparatively insensitive to physiologically relevant pH changes and dramatic increases in glucose concentrations. Results highlight the importance of blood chemistries, which vary across individuals and disease states, in mediating protein corona formation.
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Affiliation(s)
- Angela Zapata
- Department of Chemistry & Biochemistry, Santa Clara UniversitySanta ClaraCA 95053USA
| | - Mai-Loan Nguyen
- Department of Chemistry & Biochemistry, Santa Clara UniversitySanta ClaraCA 95053USA
| | - Caleb Ling
- Department of Chemistry & Biochemistry, Santa Clara UniversitySanta ClaraCA 95053USA
| | - Jacqueline Rogers
- Department of Chemistry & Biochemistry, Santa Clara UniversitySanta ClaraCA 95053USA
| | - Sangeetha Domiano
- Department of Chemistry & Biochemistry, Santa Clara UniversitySanta ClaraCA 95053USA
| | - Clive Hayzelden
- Department of Biology, San Francisco State UniversitySan FranciscoCA 94132USA
| | - Korin E. Wheeler
- Department of Chemistry & Biochemistry, Santa Clara UniversitySanta ClaraCA 95053USA
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99
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De Matteis V, Rizzello L, Cascione M, Liatsi-Douvitsa E, Apriceno A, Rinaldi R. Green Plasmonic Nanoparticles and Bio-Inspired Stimuli-Responsive Vesicles in Cancer Therapy Application. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1083. [PMID: 32486479 PMCID: PMC7353186 DOI: 10.3390/nano10061083] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 05/27/2020] [Accepted: 05/28/2020] [Indexed: 01/31/2023]
Abstract
: In the past years, there is a growing interest in the application of nanoscaled materials in cancer therapy because of their unique physico-chemical properties. However, the dark side of their usability is limited by their possible toxic behaviour and accumulation in living organisms. Starting from this assumption, the search for a green alternative to produce nanoparticles (NPs) or the discovery of green molecules, is a challenge in order to obtain safe materials. In particular, gold (Au NPs) and silver (Ag NPs) NPs are particularly suitable because of their unique physico-chemical properties, in particular plasmonic behaviour that makes them useful as active anticancer agents. These NPs can be obtained by green approaches, alternative to conventional chemical methods, owing to the use of phytochemicals, carbohydrates, and other biomolecules present in plants, fungi, and bacteria, reducing toxic effects. In addition, we analysed the use of green and stimuli-responsive polymeric bio-inspired nanovesicles, mainly used in drug delivery applications that have revolutionised the way of drugs supply. Finally, we reported the last examples on the use of metallic and Au NPs as self-propelling systems as new concept of nanorobot, which is able to respond and move towards specific physical or chemical stimuli in biological entities.
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Affiliation(s)
- Valeria De Matteis
- Department of Mathematics and Physics “Ennio De Giorgi”, University of Salento, Via Arnesano, 73100 Lecce, Italy; (M.C.); (R.R.)
| | - Loris Rizzello
- The Barcelona Institute of Science and Technology, Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac 10–12, 08028 Barcelona, Spain; (L.R.); (A.A.)
- Department of Pharmaceutical Sciences, University of Milan, via Mangiagalli 25, 20133 Milano, Italy
| | - Mariafrancesca Cascione
- Department of Mathematics and Physics “Ennio De Giorgi”, University of Salento, Via Arnesano, 73100 Lecce, Italy; (M.C.); (R.R.)
| | - Eva Liatsi-Douvitsa
- Department of Chemistry, University College London (UCL), 20 Gordon Street, London WC1H 0AJ, UK;
| | - Azzurra Apriceno
- The Barcelona Institute of Science and Technology, Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac 10–12, 08028 Barcelona, Spain; (L.R.); (A.A.)
- Department of Chemistry, University College London (UCL), 20 Gordon Street, London WC1H 0AJ, UK;
| | - Rosaria Rinaldi
- Department of Mathematics and Physics “Ennio De Giorgi”, University of Salento, Via Arnesano, 73100 Lecce, Italy; (M.C.); (R.R.)
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100
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Liu C, Hu J, Biswas S, Zhu F, Zhan J, Wang G, Tung CH, Wang Y. Surface-Enhanced Raman Scattering of Phenols and Catechols by a Molecular Analogue of Titanium Dioxide. Anal Chem 2020; 92:5929-5936. [PMID: 32250109 DOI: 10.1021/acs.analchem.0c00047] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) of semiconducting TiO2 was used for studying binding modes and surface reactions of molecules bound at the interface but is generally limited by low signal intensity and lack of authentic structural information. Here, we report a representative titanium-oxide cluster (TOC), i.e., Ti17O24(OiC3H7)20 (Ti17), combines the benefits from both precise structures and intense SERS signals by providing a titania surface. According to the single-crystal X-ray diffraction analysis, phenols and catechols are vertically attached via σ-bonds to the certain sites of Ti17. Ti17 brings about much more intense Raman signals than the reference TiO2 NPs, leading to 10-5-10-6 M analyte detection (enhancement factors are 103-105). The contributions of focusing effect, CHEM effect and resonance mechanism, all of which are found responsible for the higher SERS activity of Ti17 than the reference TiO2 NPs, in the SERS by Ti17 are quantitatively analyzed. This study suggests SERS by TOCs may be promising for detection purposes and structural studies of environmentally and catalytically relevant molecules with fewer assumptions regarding molecular structures or binding mechanisms.
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Affiliation(s)
- Caiyun Liu
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Shanda South Road 27, Jinan 250100, China
| | - Junyi Hu
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Shanda South Road 27, Jinan 250100, China
| | - Subharanjan Biswas
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Shanda South Road 27, Jinan 250100, China
| | - Feng Zhu
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Shanda South Road 27, Jinan 250100, China
| | - Jinhua Zhan
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Shanda South Road 27, Jinan 250100, China
| | - Guo Wang
- Department of Chemistry, Capital Normal University, West Third Ring North Road 105, Beijing 100048, China
| | - Chen-Ho Tung
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Shanda South Road 27, Jinan 250100, China
| | - Yifeng Wang
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Shanda South Road 27, Jinan 250100, China
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