1
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Ehtesabi H, Kalji SO. Carbon nanomaterials for sweat-based sensors: a review. Mikrochim Acta 2024; 191:77. [PMID: 38177621 DOI: 10.1007/s00604-023-06162-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 12/20/2023] [Indexed: 01/06/2024]
Abstract
Sweat is easily accessible from the human skin's surface. It is secreted by the eccrine glands and contains a wealth of physiological information, including metabolites and electrolytes like glucose and Na ions. Sweat is a particularly useful biofluid because of its easy and non-invasive access, unlike other biofluids, like blood. On the other hand, nanomaterials have started to show promise operation as a competitive substitute for biosensors and molecular sensors throughout the last 10 years. Among the most synthetic nanomaterials that are studied, applied, and discussed, carbon nanomaterials are special. They are desirable candidates for sensor applications because of their many intrinsic electrical, magnetic, and optical characteristics; their chemical diversity and simplicity of manipulation; their biocompatibility; and their effectiveness as a chemically resistant platform. Carbon nanofibers (CNFs), carbon dots (CDs), carbon nanotubes (CNTs), and graphene have been intensively investigated as molecular sensors or as components that can be integrated into devices. In this review, we summarize recent advances in the use of carbon nanomaterials as sweat sensors and consider how they can be utilized to detect a diverse range of analytes in sweat, such as glucose, ions, lactate, cortisol, uric acid, and pH.
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Affiliation(s)
- Hamide Ehtesabi
- Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran.
| | - Seyed-Omid Kalji
- Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
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2
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Dowling R, Narkowicz R, Lenz K, Oelschlägel A, Lindner J, Kostylev M. Resonance-Based Sensing of Magnetic Nanoparticles Using Microfluidic Devices with Ferromagnetic Antidot Nanostructures. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 14:19. [PMID: 38202474 PMCID: PMC10780436 DOI: 10.3390/nano14010019] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/26/2023] [Accepted: 12/13/2023] [Indexed: 01/12/2024]
Abstract
We demonstrated resonance-based detection of magnetic nanoparticles employing novel designs based upon planar (on-chip) microresonators that may serve as alternatives to conventional magnetoresistive magnetic nanoparticle detectors. We detected 130 nm sized magnetic nanoparticle clusters immobilized on sensor surfaces after flowing through PDMS microfluidic channels molded using a 3D printed mold. Two detection schemes were investigated: (i) indirect detection incorporating ferromagnetic antidot nanostructures within microresonators, and (ii) direct detection of nanoparticles without an antidot lattice. Using scheme (i), magnetic nanoparticles noticeably downshifted the resonance fields of an antidot nanostructure by up to 207 G. In a similar antidot device in which nanoparticles were introduced via droplets rather than a microfluidic channel, the largest shift was only 44 G with a sensitivity of 7.57 G/ng. This indicated that introduction of the nanoparticles via microfluidics results in stronger responses from the ferromagnetic resonances. The results for both devices demonstrated that ferromagnetic antidot nanostructures incorporated within planar microresonators can detect nanoparticles captured from dispersions. Using detection scheme (ii), without the antidot array, we observed a strong resonance within the nanoparticles. The resonance's strength suggests that direct detection is more sensitive to magnetic nanoparticles than indirect detection using a nanostructure, in addition to being much simpler.
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Affiliation(s)
- Reyne Dowling
- Department of Physics, The University of Western Australia, Crawley, WA 6009, Australia;
| | - Ryszard Narkowicz
- Institute for Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany; (R.N.); (K.L.); (J.L.)
| | - Kilian Lenz
- Institute for Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany; (R.N.); (K.L.); (J.L.)
| | - Antje Oelschlägel
- Institute for Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany; (R.N.); (K.L.); (J.L.)
| | - Jürgen Lindner
- Institute for Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany; (R.N.); (K.L.); (J.L.)
| | - Mikhail Kostylev
- Department of Physics, The University of Western Australia, Crawley, WA 6009, Australia;
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3
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Deader F, Abbas Y, Qurashi A, Al-Qutayri M, Chan V, Rezeq M. Electric Field-Driven Self-Assembly of Gold Nanoparticle Monolayers on Silicon Substrates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15766-15772. [PMID: 37879624 PMCID: PMC10634370 DOI: 10.1021/acs.langmuir.3c02351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 10/03/2023] [Indexed: 10/27/2023]
Abstract
Nanoparticles (NPs) bridge the gap between bulk materials and their equivalent molecular/atomic counterparts. The physical, optical, and electronic properties of individual NPs alter with the changes in their surrounding environment at the nanoscale. Similarly, the characteristics of thin films of NPs depend on their lateral and volumetric densities. Thus, attaining single monolayers of these NPs would play a vital role in the improved characteristics of semiconductor devices such as nanosensors, field effect transistors, and energy harvesting devices. Developing nanosensors, for instance, requires precise methods to fabricate a monolayer of NPs on selected substrates for sensing and other applications. Herein, we developed a physical fabrication method to form a monolayer of NPs on a planar silicon surface by creating an electric field of intensity 5.71 × 104 V/m between parallel plates of a capacitor, by applying a DC voltage. The physics of monolayer formation caused by an externally applied electric field on the gold NPs (Au-NPs) of size 20 nm in diameter and possesses a zeta potential of -250 to -290 mV, is further analyzed with the help of the finite element simulation. The enhanced electric field, in the order of 108 V/m, around the Au-NPs indicates a high surface charge density on the NPs, which results in a high electric force per unit area that guides them to settle uniformly on the surface of the silicon substrate.
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Affiliation(s)
- Firdous
Ahmad Deader
- Department
of Physics, Khalifa University, Abu Dhabi 127788, United Arab Emirates
- System
on Chip Lab, Khalifa University, Abu Dhabi 127788, United Arab Emirates
| | - Yawar Abbas
- Department
of Physics, Khalifa University, Abu Dhabi 127788, United Arab Emirates
- System
on Chip Lab, Khalifa University, Abu Dhabi 127788, United Arab Emirates
| | - Ahsanulhaq Qurashi
- Department
of Chemistry, Khalifa University, Abu Dhabi 127788, United Arab Emirates
| | - Mahmoud Al-Qutayri
- System
on Chip Lab, Khalifa University, Abu Dhabi 127788, United Arab Emirates
- Department
of Electrical Engineering and Computer Science, Khalifa University, Abu Dhabi 127788, United
Arab Emirates
| | - Vincent Chan
- Department
of Biomedical Engineering, Khalifa University, Abu Dhabi 127788, United Arab Emirates
| | - Moh’d Rezeq
- Department
of Physics, Khalifa University, Abu Dhabi 127788, United Arab Emirates
- System
on Chip Lab, Khalifa University, Abu Dhabi 127788, United Arab Emirates
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4
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Sezer S, Yücel A, Özhan Turhan D, Emre FB, Sarıkaya M. Comparison of ZnO doped different phases TiO 2 nanoparticles in terms of toxicity using zebrafish (Danio rerio). CHEMOSPHERE 2023; 325:138342. [PMID: 36933837 DOI: 10.1016/j.chemosphere.2023.138342] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 12/31/2022] [Accepted: 03/06/2023] [Indexed: 06/18/2023]
Abstract
Titanium dioxide is used in many commercial and industrial areas such as paint, paper, cosmetics, textiles, and surface coating. The reasons for its use in such a wide area are its anti-corrosion and high stability. Although TiO2 is considered to be a low-toxicity material, research has been further expanded following the recognition of the possible carcinogenic effects of TiO2 in humans by the International Agency for Research on Cancer (IARC). The aim of this study is to compare the toxicity of TiO2 used in many fields in different phases. In the study anatase TiO2 synthesized by hydrothermal method and dual phase TiO2 (anatase and rutile phase) structures obtained by thermal conditioning were used and compared with commercially available TiO2. ZnO which has similar uses like TiO2 was also used and compared with 1% doped TiO2 in different phases in terms of toxicity. Zebrafish (Danio rerio, D. rerio), a freshwater fish, which is widely used in toxicity assessments was preferred in this study due to its small size, fast reproduction rate, low cost, physiological and molecular similarity with humans, and genetic predisposition. Experimental investigations showed that the highest death occurred in the low concentrations of (10 ppm) ZnO doped rutile phase. 39% of the embryos died in the ZnO nanoparticle solutions prepared at low concentrations. The highest mortality at medium (100 ppm) and high (1000 ppm) concentrations were observed in the ZnO-doped rutile phase after 96 h. Similarly, the highest malformation was detected in the ZnO-doped rutile phase during the same period.
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Affiliation(s)
- Selda Sezer
- Malatya Turgut Ozal University, Akcadag Vocational School, Laboratory and Veterinary Health Program, Akcadag, Malatya, Turkey.
| | - Ayşegül Yücel
- Iskenderun Technical University Iskenderun Vocational School, Environmental Protection and Control Program, Iskenderun, Hatay, Turkey; Inonu University, Faculty of Engineering, Department of Mining Engineering, Malatya, Turkey
| | - Duygu Özhan Turhan
- Inonu University, Faculty of Arts and Science, Department of Biology, Malatya, Turkey
| | - Fatma Bilge Emre
- Inonu University, Faculty of Education, Department of Science Teaching, Malatya, Turkey
| | - Musa Sarıkaya
- Inonu University, Faculty of Engineering, Department of Mining Engineering, Malatya, Turkey
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5
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Heil CM, Patil A, Vanthournout B, Singla S, Bleuel M, Song JJ, Hu Z, Gianneschi NC, Shawkey MD, Sinha SK, Jayaraman A, Dhinojwala A. Mechanism of structural colors in binary mixtures of nanoparticle-based supraballs. SCIENCE ADVANCES 2023; 9:eadf2859. [PMID: 37235651 DOI: 10.1126/sciadv.adf2859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 04/20/2023] [Indexed: 05/28/2023]
Abstract
Inspired by structural colors in avian species, various synthetic strategies have been developed to produce noniridescent, saturated colors using nanoparticle assemblies. Nanoparticle mixtures varying in particle chemistry and size have additional emergent properties that affect the color produced. For complex multicomponent systems, understanding the assembled structure and a robust optical modeling tool can empower scientists to identify structure-color relationships and fabricate designer materials with tailored color. Here, we demonstrate how we can reconstruct the assembled structure from small-angle scattering measurements using the computational reverse-engineering analysis for scattering experiments method and use the reconstructed structure in finite-difference time-domain calculations to predict color. We successfully, quantitatively predict experimentally observed color in mixtures containing strongly absorbing nanoparticles and demonstrate the influence of a single layer of segregated nanoparticles on color produced. The versatile computational approach that we present is useful for engineering synthetic materials with desired colors without laborious trial-and-error experiments.
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Affiliation(s)
- Christian M Heil
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy St., Newark, DE 19716, USA
| | - Anvay Patil
- School of Polymer Science and Polymer Engineering, The University of Akron, 170 University Ave., Akron, OH 44325, USA
| | - Bram Vanthournout
- Evolution and Optics of Nanostructures Group, Department of Biology, Ghent University, Ledeganckstraat 35, Ghent 9000, Belgium
| | - Saranshu Singla
- School of Polymer Science and Polymer Engineering, The University of Akron, 170 University Ave., Akron, OH 44325, USA
| | - Markus Bleuel
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20878, USA
- Department of Materials Science and Engineering, University of Maryland, 4418 Stadium Dr., College Park, MD 20742, USA
| | - Jing-Jin Song
- Department of Materials Science & Engineering, University of California San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
| | - Ziying Hu
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Nathan C Gianneschi
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
- Department of Materials Science and Engineering, Department of Biomedical Engineering, Department of Pharmacology, International Institute of Nanotechnology, Simpson-Querrey Institute, Chemistry of Life Processes Institute, Lurie Cancer Center, Northwestern University, Evanston, IL 60208, USA
| | - Matthew D Shawkey
- Evolution and Optics of Nanostructures Group, Department of Biology, Ghent University, Ledeganckstraat 35, Ghent 9000, Belgium
| | - Sunil K Sinha
- Department of Physics, University of California San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
| | - Arthi Jayaraman
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy St., Newark, DE 19716, USA
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE 19716, USA
| | - Ali Dhinojwala
- School of Polymer Science and Polymer Engineering, The University of Akron, 170 University Ave., Akron, OH 44325, USA
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6
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Kandathil V, Manoj N. Advances in CO 2 utilization employing anisotropic nanomaterials as catalysts: a review. Front Chem 2023; 11:1175132. [PMID: 37304687 PMCID: PMC10248019 DOI: 10.3389/fchem.2023.1175132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 05/18/2023] [Indexed: 06/13/2023] Open
Abstract
Anisotropic nanomaterials are materials with structures and properties that vary depending on the direction in which they are measured. Unlike isotropic materials, which exhibit uniform physical properties in all directions, anisotropic materials have different mechanical, electrical, thermal, and optical properties in different directions. Examples of anisotropic nanomaterials include nanocubes, nanowires, nanorods, nanoprisms, nanostars, and so on. These materials have unique properties that make them useful in a variety of applications, such as electronics, energy storage, catalysis, and biomedical engineering. One of the key advantages of anisotropic nanomaterials is their high aspect ratio, which refers to the ratio of their length to their width, which can enhance their mechanical and electrical properties, making them suitable for use in nanocomposites and other nanoscale applications. However, the anisotropic nature of these materials also presents challenges in their synthesis and processing. For example, it can be difficult to align the nanostructures in a specific direction to impart modulation of a specific property. Despite these challenges, research into anisotropic nanomaterials continues to grow, and scientists are working to develop new synthesis methods and processing techniques to unlock their full potential. Utilization of carbon dioxide (CO2) as a renewable and sustainable source of carbon has been a topic of increasing interest due to its impact on reducing the level of greenhouse gas emissions. Anisotropic nanomaterials have been used to improve the efficiency of CO2 conversion into useful chemicals and fuels using a variety of processes such as photocatalysis, electrocatalysis, and thermocatalysis. More study is required to improve the usage of anisotropic nanomaterials for CO2 consumption and to scale up these technologies for industrial use. The unique properties of anisotropic nanomaterials, such as their high surface area, tunable morphology, and high activity, make them promising catalysts for CO2 utilization. This review article discusses briefly about various approaches towards the synthesis of anisotropic nanomaterials and their applications in CO2 utilization. The article also highlights the challenges and opportunities in this field and the future direction of research.
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7
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Schlichter L, Bosse F, Tyler BJ, Arlinghaus HF, Ravoo BJ. Patterning of Hydrophilic and Hydrophobic Gold and Magnetite Nanoparticles by Dip Pen Nanolithography. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2208069. [PMID: 36828795 DOI: 10.1002/smll.202208069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/01/2023] [Indexed: 05/04/2023]
Abstract
Nanoparticles offer unique physical and chemical properties. Dip pen nanolithography of nanoparticles enables versatile patterning and nanofabrication with potential application in electronics and sensing, but is not well studied yet. Herein, the patterned deposition of various nanoparticles onto unmodified silicon substrates is presented. It is shown that aqueous solutions of hydrophilic citrate and cyclodextrin functionalized gold nanoparticles as well as poly(acrylic) acid decorated magnetite nanoparticles are feasible for writing nanostructures. Both smaller and larger nanoparticles can be patterned. Hydrophobic oleylamine or n-dodecylamine capped gold nanoparticles and oleic acid decorated magnetite nanoparticles are deposited from toluene. Tip loading is carried out by dip-coating, and writing succeeds fast within 0.1 s. Also, coating with longer tip dwell times, at different relative humidity and varying frequency are studied for deposition of nanoparticle clusters. The resulting feature size is between 300 and 1780 nm as determined by scanning electron microscopy. Atomic force microscopy confirms that the heights of the deposited structures correspond to a single or double layer of nanoparticles. Higher writing speeds lead to smaller line thicknesses, offering possibilities to more complex structures. Dip pen nanolithography can hence be used to pattern nanoparticles on silicon substrates independent of the surface chemistry.
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Affiliation(s)
- Lisa Schlichter
- Center for Soft Nanoscience and Organic Chemistry Institute, Westfälische Wilhelms- Universität Münster, Busso-Peus-Straße 10, 48149, Münster, Germany
| | - Florian Bosse
- Center for Soft Nanoscience and Organic Chemistry Institute, Westfälische Wilhelms- Universität Münster, Busso-Peus-Straße 10, 48149, Münster, Germany
| | - Bonnie J Tyler
- Center for Soft Nanoscience and Physics Institute, Westfälische Wilhelms-Universität Münster, Busso-Peus-Str. 10, 48149, Münster, Germany
| | - Heinrich F Arlinghaus
- Center for Soft Nanoscience and Physics Institute, Westfälische Wilhelms-Universität Münster, Busso-Peus-Str. 10, 48149, Münster, Germany
| | - Bart Jan Ravoo
- Center for Soft Nanoscience and Organic Chemistry Institute, Westfälische Wilhelms- Universität Münster, Busso-Peus-Straße 10, 48149, Münster, Germany
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8
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Adam A, Mertz D. Iron Oxide@Mesoporous Silica Core-Shell Nanoparticles as Multimodal Platforms for Magnetic Resonance Imaging, Magnetic Hyperthermia, Near-Infrared Light Photothermia, and Drug Delivery. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1342. [PMID: 37110927 PMCID: PMC10145772 DOI: 10.3390/nano13081342] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/31/2023] [Accepted: 04/02/2023] [Indexed: 06/19/2023]
Abstract
The design of core-shell nanocomposites composed of an iron oxide core and a silica shell offers promising applications in the nanomedicine field, especially for developing efficient theranostic systems which may be useful for cancer treatments. This review article addresses the different ways to build iron oxide@silica core-shell nanoparticles and it reviews their properties and developments for hyperthermia therapies (magnetically or light-induced), combined with drug delivery and MRI imaging. It also highlights the various challenges encountered, such as the issues associated with in vivo injection in terms of NP-cell interactions or the control of the heat dissipation from the core of the NP to the external environment at the macro or nanoscale.
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Chang CH, Tsai LH, Lee YC, Yao WC, Lin JJ. Synergistic Effects of Silicate-Platelet Supporting Ag and ZnO, Offering High Antibacterial Activity and Low Cytotoxicity. Int J Mol Sci 2023; 24:ijms24087024. [PMID: 37108187 PMCID: PMC10138669 DOI: 10.3390/ijms24087024] [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: 02/21/2023] [Revised: 04/02/2023] [Accepted: 04/04/2023] [Indexed: 04/29/2023] Open
Abstract
Silver nanoparticles (AgNPs) are remarkably able to eliminate microorganisms, but induce cytotoxicity in mammalian cells, and zinc oxide nanoparticles (ZnONPs) are considered to have a wide bactericidal effect with weak cytotoxicity. In this study, both zinc oxide nanoparticles and silver nanoparticles were co-synthesized on a nano-silicate platelet (NSP) to prepare a hybrid of AgNP/ZnONP/NSP. Ultraviolet-visible spectroscopy (UV-Vis), X-ray diffraction (XRD), and transmission electron microscopy (TEM) were used to characterize the formation of nanoparticles on the NSP. Synthesized ZnONP/NSP (ZnONP on NSP) was confirmed by the absorption peaks on UV-Vis and XRD. AgNP synthesized on ZnONP/NSP was also characterized by UV-Vis, and ZnONP/NSP showed no interference with synthesis. The images of TEM demonstrated that NSP provides physical support for the growth of nanoparticles and could prevent the inherent aggregation of ZnONP. In antibacterial tests, AgNP/ZnONP/NSP exhibited more efficacy against Staphylococcus aureus (S. aureus) than ZnONP/NSP (ZnONP was synthesized on NSP) and AgNP/NSP (AgNP was synthesized on NSP). In cell culture tests, 1/10/99 (weight ratio) of AgNP/ZnONP/NSP exhibited low cytotoxicity for mammalian cells (>100 ppm). Therefore, AgNP/ZnONP/NSP, containing both AgNP and ZnONP, with both strong antibacterial qualities and low cytotoxicity, showed potentially advantageous medical utilizations due to its antibacterial properties.
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Affiliation(s)
- Chih-Hao Chang
- Department of Orthopedics, National Taiwan University Hospital Jin-Shan Branch, New Taipei City 20844, Taiwan
- Department of Orthopedics, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei 100, Taiwan
| | - Li-Hui Tsai
- Department of Biomedical Engineering, National Taiwan University, Taipei 100, Taiwan
| | - Yi-Chen Lee
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Wei-Cheng Yao
- Department of Anesthesiology and Pain Medicine, Min-Sheng General Hospital, Taoyuan 330, Taiwan
| | - Jiang-Jen Lin
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
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Synthesis, Empirical and Theoretical Investigations on New Histaminium Bis(Trioxonitrate) Compound. Molecules 2023; 28:molecules28041931. [PMID: 36838921 PMCID: PMC9958629 DOI: 10.3390/molecules28041931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 02/13/2023] [Accepted: 02/14/2023] [Indexed: 02/22/2023] Open
Abstract
In this paper, a novel hybrid material, entitled histaminium bis(trioxonitrate), with the general chemical formula (C5H11N3)(NO3)2, denoted by HTN was presented. Single-crystal X-ray diffraction was used to determine the structural characteristics of this compound after it was made using a slow evaporation method at room temperature. This compound was elaborated and crystallized to the monoclinic system with space group P21/c, and the lattice parameters obtained were: a = 10.4807 (16)Å, b = 11.8747 (15)Å, c = 16.194 (2)Å, β = 95.095 (6)°, V = 2007.4 (5)Å3 and Z = 8. The title compound's atomic structure couldbe modeled as a three-dimensional network. Organic cations and nitrate anions were connected via N-H...O and C-H...O hydrogen bonds in the HTN structure. The intermolecular interactions responsible for the formation of crystal packing were evaluated using Hirshfeld surfaces and two-dimensional fingerprint plots. The compound's infrared spectrum, which ranged from 4000 to 400 cm-1, confirmed the presence of the principal bands attributed to the internal modes of the organic cation and nitrate anions. Additionally, spectrofluorimetry and the ultraviolet-visible spectrum was used to investigate this compound. DFT calculations were used to evaluate the composition and properties of HTN. The energy gap, chemical reactivity and crystal stability of HTN were quantified by performing HOMO-LUMO frontier orbitals analysis. Topological analysis (AIM), Reduced Density Gradient (RDG), molecular electrostatic potential surface (MEPS) and Mulliken population were processed to determine the types of non-covalent interactions, atomic charges and molecular polarity in detail.
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11
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Jaziri E, Louis H, Gharbi C, Unimuke TO, Agwamba EC, Mathias GE, Fugita W, Nasr CB, Khedhiri L. Antispasmodic activity of novel 2,4-dichloroanilinium perchlorate hybrid material: X-ray crystallography, DFT studies and molecular docking approach. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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Martín-Roca J, Horcajo-Fernández M, Valeriani C, Gámez F, Martínez-Pedrero F. Field-Pulse-Induced Annealing of 2D Colloidal Polycrystals. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:397. [PMID: 36770358 PMCID: PMC9921439 DOI: 10.3390/nano13030397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/13/2023] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
Two-dimensional colloidal crystals are of considerable fundamental and practical importance. However, their quality is often low due to the widespread presence of domain walls and defects. In this work, we explored the annealing process undergone by monolayers of superparamagnetic colloids adsorbed onto fluid interfaces in the presence of magnetic field pulses. These systems present the extraordinary peculiarity that both the extent and the character of interparticle interactions can be adjusted at will by simply varying the strength and orientation of the applied field so that the application of field pulses results in a sudden input of energy. Specifically, we have studied the effect of polycrystal size, pulse duration, slope and frequency on the efficiency of the annealing process and found that (i) this strategy is only effective when the polycrystal consists of less than approximately 10 domains; (ii) that the pulse duration should be of the order of magnitude of the time required for the outer particles to travel one diameter during the heating step; (iii) that the quality of larger polycrystals can be slightly improved by applying tilted pulses. The experimental results were corroborated by Brownian dynamics simulations.
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Affiliation(s)
- José Martín-Roca
- Departamento de Estructura de la Materia, Física Térmica y Electrónica, Universidad Complutense de Madrid, 28040 Madrid, Spain
- GISC-Grupo Interdisciplinar de Sistemas Complejos, 28040 Madrid, Spain
| | | | - Chantal Valeriani
- Departamento de Estructura de la Materia, Física Térmica y Electrónica, Universidad Complutense de Madrid, 28040 Madrid, Spain
- GISC-Grupo Interdisciplinar de Sistemas Complejos, 28040 Madrid, Spain
| | - Francisco Gámez
- Departamento de Química-Física, Universidad Complutense de Madrid, 28040 Madrid, Spain
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13
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Collard Y, Piñan Basualdo FN, Bolopion A, Gauthier M, Lambert P, Vandewalle N. Controlled transitions between metastable states of 2D magnetocapillary crystals. Sci Rep 2022; 12:16027. [PMID: 36163481 PMCID: PMC9513081 DOI: 10.1038/s41598-022-20035-8] [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: 03/31/2022] [Accepted: 09/07/2022] [Indexed: 11/22/2022] Open
Abstract
Magnetocapillary interactions between particles allow to self-assemble floating crystals along liquid interfaces. For a fixed number of particles, different states possessing different symmetrical features, known as metastable states, coexist. In this paper, we demonstrate how to trigger the transition from one state to another, either by rearranging the crystal, or by controlling its growth. First, we show that externally controlled magnetic fields can squeeze the entire crystal to induce structural modifications, that upon relaxation can lead to a modified state. Second, we propose localized laser-induced thermocapillary flows that can be used to guide new particles towards an existing crystal in a desired direction, thus favoring a particular resulting state. The control of the formation of metastable states is a key ingredient to functionalize such assemblies, paving the way to self-assembled microrobots.
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Affiliation(s)
- Ylona Collard
- GRASP, Institute of Physics B5a, Université de Liège, 4000, Liège, Belgium.
| | - Franco N Piñan Basualdo
- TIPs, École Polytechnique de Bruxelles, Université Libre de Bruxelle, 1050, Brussels, Belgium. .,FEMTO-ST, CNRS, Université Bourgogne Franche-Comté, 25000, Besançon, France.
| | - Aude Bolopion
- FEMTO-ST, CNRS, Université Bourgogne Franche-Comté, 25000, Besançon, France
| | - Michaël Gauthier
- FEMTO-ST, CNRS, Université Bourgogne Franche-Comté, 25000, Besançon, France
| | - Pierre Lambert
- TIPs, École Polytechnique de Bruxelles, Université Libre de Bruxelle, 1050, Brussels, Belgium
| | - Nicolas Vandewalle
- GRASP, Institute of Physics B5a, Université de Liège, 4000, Liège, Belgium
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14
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Kwak JH, Kim S, Pak HK, Sung SK, Kwak J, Lee SW, Kim CH, Kim GR. Preparation of Giant Quantum Dot-Liposome Complexes by the Asolectin Lipid and Theoretical Model for Stabilization of Nanoparticle Inside the Liposome. J BIOMATER TISS ENG 2022. [DOI: 10.1166/jbt.2022.3087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We prepare giant Quantum dot-Liposome Complexes (QLCs). Quantum dots (QDs) incorporated inside liposome above 10 μm. QLCs is made by using the electro-swelling method combined with spin coating techniques. Three types of PC lipids and asolectin lipid are used for QLCs with
HDA (hexadecylamine) coated QDs, which ranged from blue- (diameter ~2.1 nm) to red-emission (diameter ~5.0 nm). As expected, (blue- or) green-emission QDs (smaller than) comparable to the thickness of PC lipid bilayer (~4 nm) are successfully formed QLCs, but QDs bigger than that fail to reproduce.
This observation is well-consistent with those reported by Gopakumar et al. Surprisingly, all QDs irrespective of their size are, contrary to PC lipids, successfully loaded into asolectin lipid bilayer. In order to understand what makes different behaviors between PC and asolectin lipids on
QLC formation, we suggest a theoretical model based on a geometrical assumptions for deformed lipid bilayer surrounding QD. The main advantage of this model is that the critical size Rcr of QD radius can be decided without calculating elastic free energy. As a result, it
predicts that only QDs below the critical size (diameter ~3.0 nm) can be loaded in a typical PC-lipid, but all size of QDs can be incorporated into asolectin bilayer under the assumption of two different curvatures on deformed monolayer.
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Affiliation(s)
- Jong Hyeok Kwak
- Department of Radiology, Pusan National University Yang-san Hospital, Yangsan, 50612, Korea
| | - Sungho Kim
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology, Ulsan, 44919, Korea
| | - Hyuk Kyu Pak
- Department of Physics, Ulsan National Institute of Science and Technology, Ulsan, 44919, Korea
| | - Soon Ki Sung
- Department of Neurosurgery, Pusan National University Yang-san Hospital, Yangsan, 50612, Korea
| | - Jinsung Kwak
- Department of Physics, Changwon National University, Changwon, 51140, Korea
| | - Sang Weon Lee
- Department of Neurosurgery, Pusan National University Yang-san Hospital, Yangsan, 50612, Korea
| | - Chang Hyeun Kim
- Department of Neurosurgery, Pusan National University Yang-san Hospital, Yangsan, 50612, Korea
| | - Gyeong Rip Kim
- Department of Neurosurgery, Pusan National University Yang-san Hospital, Yangsan, 50612, Korea
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15
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Golnaraghi-Ghomi AR, Mohammadi-Khanaposhti M, Sokhansanj A, Saadati Y, Khazraei E, Kobarfard F, Barabadi H, Golnaraghi A. Artificial Neural Network Modeling of Fungus-Mediated Extracellular Biosynthesis of Zirconium Nanoparticles Using Standard Penicillium spp. J CLUST SCI 2022. [DOI: 10.1007/s10876-021-02111-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Heil C, Patil A, Dhinojwala A, Jayaraman A. Computational Reverse-Engineering Analysis for Scattering Experiments (CREASE) with Machine Learning Enhancement to Determine Structure of Nanoparticle Mixtures and Solutions. ACS CENTRAL SCIENCE 2022; 8:996-1007. [PMID: 35912348 PMCID: PMC9335921 DOI: 10.1021/acscentsci.2c00382] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
We present a new open-source, machine learning (ML) enhanced computational method for experimentalists to quickly analyze high-throughput small-angle scattering results from multicomponent nanoparticle mixtures and solutions at varying compositions and concentrations to obtain reconstructed 3D structures of the sample. This new method is an improvement over our original computational reverse-engineering analysis for scattering experiments (CREASE) method (ACS Materials Au2021, 1 (2 (2), ), 140-156), which takes as input the experimental scattering profiles and outputs a 3D visualization and structural characterization (e.g., real space pair-correlation functions, domain sizes, and extent of mixing in binary nanoparticle mixtures) of the nanoparticle mixtures. The new gene-based CREASE method reduces the computational running time by >95% as compared to the original CREASE and performs better in scenarios where the original CREASE method performed poorly. Furthermore, the ML model linking features of nanoparticle solutions (e.g., concentration, nanoparticles' tendency to aggregate) to a computed scattering profile is generic enough to analyze scattering profiles for nanoparticle solutions at conditions (nanoparticle chemistry and size) beyond those that were used for the ML training. Finally, we demonstrate application of this new gene-based CREASE method for analysis of small-angle X-ray scattering results from a nanoparticle solution with unknown nanoparticle aggregation and small-angle neutron scattering results from a binary nanoparticle assembly with unknown mixing/segregation among the nanoparticles.
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Affiliation(s)
- Christian
M. Heil
- Department
of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United
States
| | - Anvay Patil
- School
of Polymer Science and Polymer Engineering, The University of Akron, 170 University Avenue, Akron, Ohio 44325, United
States
| | - Ali Dhinojwala
- School
of Polymer Science and Polymer Engineering, The University of Akron, 170 University Avenue, Akron, Ohio 44325, United
States
| | - Arthi Jayaraman
- Department
of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United
States
- Department
of Materials Science and Engineering, University
of Delaware, 201 DuPont
Hall, Newark, Delaware 19716, United States
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17
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Banik M, Oded M, Shenhar R. Coupling the chemistry and topography of block copolymer films patterned by soft lithography for nanoparticle organization. SOFT MATTER 2022; 18:5302-5311. [PMID: 35791685 DOI: 10.1039/d2sm00389a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Soft lithography techniques have become leading mesoscale approaches for replicating topographic features in polymer films. So far, modified polymer films formed by soft lithography only featured topographic heterogeneity. Here we demonstrate the application of soft lithography techniques to block copolymer films, and show that the preferential affinity of one of the blocks to the stamping material leads to chemical heterogeneity that corresponds to the topographic features. Detailed surface and structural characterization of the patterned films provided information on its three-dimensional structure, revealing insights on the domain reorganization that takes place in the block copolymer film concomitantly with topography formation. The formed structures were utilized for the selective assembly of gold nanoparticles into hierarchical structures. The versatility of this combined nanofabrication/self-assembly approach was demonstrated by the assembly of two types of metallic nanoparticles into two different arrangements with full control over the location of each type of nanoparticles.
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Affiliation(s)
- Meneka Banik
- The Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel.
| | - Meirav Oded
- The Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel.
| | - Roy Shenhar
- The Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel.
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18
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Sasmita Mishra, Nathsarma SK, Mishra KG, Paramguru RK. Antimicrobial Activity of Silver Nanoparticles on Pseudomonas aeruginosa: Influence of Particle Size Controlled through Mixed Current. SURFACE ENGINEERING AND APPLIED ELECTROCHEMISTRY 2022. [DOI: 10.3103/s1068375522020065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Singh BP, Sikarwar S, Tripathi S, Agarwal S, Sah M, Manohar R, Pandey KK. Thermodynamic and spectroscopic characterization of a weakly polar liquid crystalline compound dispersed with polyvinyl pyrrolidone capped gold nanoparticles. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118889] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Spheres-in-Grating Assemblies with Altered Photoluminescence and Wetting Properties. NANOMATERIALS 2022; 12:nano12071084. [PMID: 35407201 PMCID: PMC9000395 DOI: 10.3390/nano12071084] [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: 02/27/2022] [Revised: 03/21/2022] [Accepted: 03/23/2022] [Indexed: 11/17/2022]
Abstract
In this work, we report the fabrication of spheres-in-grating assemblies consisting of equally spaced parallel rectangular grooves filled with fluorescent spheres, by employing embossing and convective self-assembly methods. The developed hierarchical assemblies, when compared to spheres spin-cast on glass, exhibited a blueshift in the photoluminescence spectra, as well as changes in wetting properties induced not only by the patterning process, but also by the nature and size of the utilized spheres. While the patterning process led to increased hydrophobicity, the utilization of spheres with larger diameter improved the hydrophilicity of the fabricated assemblies. Finally, by aiming at the future integration of the spheres-in-grating assemblies as critical components in different technological and medical applications, we report a successful encapsulation of the incorporated spheres within the grating with a top layer of a functional polymer.
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21
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Green JB, Clarke E, McDermott C, McDermott M, Zhong C, Bergren A, Poter M. On the Counter‐Intuitive Heterogeneous Electron Transfer Barrier Properties of Alkanethiolate Monolayers on Gold: Smooth versus Rough Surfaces. ELECTROANAL 2022. [DOI: 10.1002/elan.202100704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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22
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Bhardwaj H, Rajesh, Sumana G. Recent advances in nanomaterials integrated immunosensors for food toxin detection. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2022; 59:12-33. [PMID: 35068548 PMCID: PMC8758883 DOI: 10.1007/s13197-021-04999-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 01/20/2021] [Accepted: 01/22/2021] [Indexed: 01/03/2023]
Abstract
For the management and prevention of many chronic and acute diseases, the rapid quantification of toxicity in food and feed products have become a significant concern. Technology advancements in the area of biosensors, bioelectronics, miniaturization techniques, and microfluidics have shown a significant impact than conventional methods which have given a boost to improve the sensing performance towards food analyte detection. In this article, recent literature of Aflatoxin B1 (AFB1), worldwide permissible limits, major outbreaks and severe impact on healthy life have been discussed. An improvement achieved in detection range, limit of detection, shelf-life of the biosensor by integrated dimensional nanomaterials such as zero-dimension, one-dimension and two-dimension for AFB1 detection using electrical and optical transduction mechanism has been summarized. A critical overview of the latest trends using paper-based and micro-spotted array integrated with the anisotropic shape of nanomaterials, portable microfluidic devices have also been described together with future perspectives for further advancements.
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Affiliation(s)
- Hema Bhardwaj
- CSIR-National Physical Laboratory, Dr. KS Krishnan Marg, New Delhi, 110012 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
| | - Rajesh
- CSIR-National Physical Laboratory, Dr. KS Krishnan Marg, New Delhi, 110012 India
| | - Gajjala Sumana
- CSIR-National Physical Laboratory, Dr. KS Krishnan Marg, New Delhi, 110012 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
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23
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Hadaoui S, Ouerghi Z, Elleuch S, Kefi R. A new organic-inorganic hybrid compound (C10H28N4)[CuCl4][BF4]2: Structural, optical, thermal studies and DFT-TDDFT calculations. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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24
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Ettadili F, Aghris S, Laghrib F, Farahi A, Saqrane S, Bakasse M, Lahrich S, El Mhammedi M. Recent advances in the nanoparticles synthesis using plant extract: Applications and future recommendations. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131538] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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25
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Xu W, Jambhulkar S, Ravichandran D, Zhu Y, Kakarla M, Nian Q, Azeredo B, Chen X, Jin K, Vernon B, Lott DG, Cornella JL, Shefi O, Miquelard-Garnier G, Yang Y, Song K. 3D Printing-Enabled Nanoparticle Alignment: A Review of Mechanisms and Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2100817. [PMID: 34176201 DOI: 10.1002/smll.202100817] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 04/05/2021] [Indexed: 05/12/2023]
Abstract
3D printing (additive manufacturing (AM)) has enormous potential for rapid tooling and mass production due to its design flexibility and significant reduction of the timeline from design to manufacturing. The current state-of-the-art in 3D printing focuses on material manufacturability and engineering applications. However, there still exists the bottleneck of low printing resolution and processing rates, especially when nanomaterials need tailorable orders at different scales. An interesting phenomenon is the preferential alignment of nanoparticles that enhance material properties. Therefore, this review emphasizes the landscape of nanoparticle alignment in the context of 3D printing. Herein, a brief overview of 3D printing is provided, followed by a comprehensive summary of the 3D printing-enabled nanoparticle alignment in well-established and in-house customized 3D printing mechanisms that can lead to selective deposition and preferential orientation of nanoparticles. Subsequently, it is listed that typical applications that utilized the properties of ordered nanoparticles (e.g., structural composites, heat conductors, chemo-resistive sensors, engineered surfaces, tissue scaffolds, and actuators based on structural and functional property improvement). This review's emphasis is on the particle alignment methodology and the performance of composites incorporating aligned nanoparticles. In the end, significant limitations of current 3D printing techniques are identified together with future perspectives.
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Affiliation(s)
- Weiheng Xu
- The Polytechnic School (TPS), Ira A. Fulton Schools for Engineering, Arizona State University, 6075 S. Innovation Way West, Mesa, AZ, 85212, USA
| | - Sayli Jambhulkar
- The Polytechnic School (TPS), Ira A. Fulton Schools for Engineering, Arizona State University, 6075 S. Innovation Way West, Mesa, AZ, 85212, USA
| | - Dharneedar Ravichandran
- The Polytechnic School (TPS), Ira A. Fulton Schools for Engineering, Arizona State University, 6075 S. Innovation Way West, Mesa, AZ, 85212, USA
| | - Yuxiang Zhu
- The Polytechnic School (TPS), Ira A. Fulton Schools for Engineering, Arizona State University, 6075 S. Innovation Way West, Mesa, AZ, 85212, USA
| | - Mounika Kakarla
- Department of Materials Science and Engineering, Ira A. Fulton Schools for Engineering, Arizona State University, Tempe, 501 E. Tyler Mall, Tempe, AZ, 85287, USA
| | - Qiong Nian
- Department of Mechanical Engineering, and Multi-Scale Manufacturing Material Processing Lab (MMMPL), Ira A. Fulton Schools for Engineering, Arizona State University, 501 E. Tyler Mall, Tempe, AZ, 85287, USA
| | - Bruno Azeredo
- The Polytechnic School (TPS), Ira A. Fulton Schools for Engineering, Arizona State University, 6075 S. Innovation Way West, Mesa, AZ, 85212, USA
| | - Xiangfan Chen
- Advanced Manufacturing and Functional Devices (AMFD) Laboratory, Ira A. Fulton Schools for Engineering, Arizona State University, 6075 Innovation Way W., Mesa, AZ, 85212, USA
| | - Kailong Jin
- Department of Chemical Engineering, School for Engineering Matter, Transport and Energy (SEMTE), and Biodesign Institute Center for Sustainable Macromolecular Materials and Manufacturing (BCSM3), Arizona State University, 501 E. Tyler St., Tempe, AZ, 85287, USA
| | - Brent Vernon
- Department of Biomedical Engineering, Biomaterials Lab, School of Biological and Health Systems Engineering, Arizona State University, 427 E Tyler Mall, Tempe, AZ, 85281, USA
| | - David G Lott
- Department Otolaryngology, Division of Laryngology, College of Medicine, and Mayo Clinic Arizona Center for Regenerative Medicine, 13400 E Shea Blvd, Scottsdale, AZ, 85259, USA
| | - Jeffrey L Cornella
- Professor of Obstetrics and Gynecology, Mayo Clinic College of Medicine, Division of Gynecologic Surgery, Mayo Clinic, 13400 E Shea Blvd, Scottsdale, AZ, 85259, USA
| | - Orit Shefi
- Department of Engineering, Neuro-Engineering and Regeneration Laboratory, Bar Ilan Institute of Nanotechnologies and Advanced Materials, Bar-Ilan University, Building 1105, Ramat Gan, 52900, Israel
| | - Guillaume Miquelard-Garnier
- laboratoire PIMM, UMR 8006, Arts et Métiers Institute of Technology, CNRS, CNAM, Hesam University, 151 boulevard de l'Hôpital, Paris, 75013, France
| | - Yang Yang
- Additive Manufacturing & Advanced Materials Lab, Department of Mechanical Engineering, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182-1323, USA
| | - Kenan Song
- Department of Manufacturing Engineering, Advanced Materials Advanced Manufacturing Laboratory (AMAML), Ira A. Fulton Schools for Engineering, Arizona State University, 6075 Innovation Way W., Mesa, AZ, 85212, USA
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26
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Stahley JB, Zanjani MB. Multifarious colloidal structures: new insight into ternary and quadripartite ordered assemblies. NANOSCALE 2021; 13:16554-16563. [PMID: 34558597 DOI: 10.1039/d1nr05635b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
DNA-mediated assembly of colloidal particles can be utilized to produce a variety of structures which may have desirable phononic, photonic, or electronic transport properties. Recent developments in linker-mediated assembly processes allow for interactions to be coordinated between many different types of colloidal particles more easily and with fewer unique sequences than direct hybridization. However, the dynamics of colloidal self-assembly becomes increasingly more complex when coordinating interactions between three or more distinct interacting elements. In such cases particle pairs with similar binding energies are allowed to interact unpredictably, and enthalpically degenerate binding sites will be noticeably more present while numerous secondary phases may also result from the self-assembly process. Therefore, it is necessary to develop procedures for predicting feasible superstructure geometries for these systems before they can be implemented in material design. Here we investigate the formation of multifarious ordered structures through self-assembly of multiple types of spherically symmetrical colloidal particles with a variety of interaction matrices. We utilize Molecular Dynamics (MD) simulations to study the growth behavior of systems with different types of interacting elements and different particle sizes, and also predict the formation and stability of the target structures. We also study the phononic spectra of various ternary structures in order to identify the influence of key structural parameters on phonon bandgap frequencies and ranges. Our results provide direct guidelines for designing ternary and quadripartite multifarious colloidal structures, and motivate new directions for future experimental work to target formation of multi-component colloidal superstructures beyond the well-established binary symmetries studied in the past.
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Affiliation(s)
- James B Stahley
- Department of Mechanical and Manufacturing Engineering, Miami University, Oxford, OH, USA.
| | - Mehdi B Zanjani
- Department of Mechanical and Manufacturing Engineering, Miami University, Oxford, OH, USA.
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27
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Muñoz J, Redondo E, Pumera M. Versatile Design of Functional Organic-Inorganic 3D-Printed (Opto)Electronic Interfaces with Custom Catalytic Activity. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2103189. [PMID: 34510744 DOI: 10.1002/smll.202103189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/12/2021] [Indexed: 06/13/2023]
Abstract
The ability to combine organic and inorganic components in a single material represents a great step toward the development of advanced (opto)electronic systems. Nowadays, 3D-printing technology has generated a revolution in the rapid prototyping and low-cost fabrication of 3D-printed electronic devices. However, a main drawback when using 3D-printed transducers is the lack of robust functionalization methods for tuning their capabilities. Herein, a simple, general and robust in situ functionalization approach is reported to tailor the capabilities of 3D-printed nanocomposite carbon/polymer electrode (3D-nCE) surfaces with a battery of functional inorganic nanoparticles (FINPs), which are appealing active units for electronic, optical and catalytic applications. The versatility of the resulting functional organic-inorganic 3D-printed electronic interfaces is provided in different pivotal areas of electrochemistry, including i) electrocatalysis, ii) bio-electroanalysis, iii) energy (storage and conversion), and iv) photoelectrochemical applications. Overall, the synergism of combining the transducing characteristics of 3D-nCEs with the implanted tuning surface capabilities of FINPs leads to new/enhanced electrochemical performances when compared to their bare 3D-nCE counterparts. Accordingly, this work elucidates that FINPs have much to offer in the field of 3D-printing technology and provides the bases toward the green fabrication of functional organic-inorganic 3D-printed (opto)electronic interfaces with custom catalytic activity.
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Affiliation(s)
- Jose Muñoz
- Future Energy and Innovation Laboratory, Central European Institute of Technology, Brno University of Technology (CEITEC-BUT), Purkyňova 123, Brno, 61200, Czech Republic
| | - Edurne Redondo
- Future Energy and Innovation Laboratory, Central European Institute of Technology, Brno University of Technology (CEITEC-BUT), Purkyňova 123, Brno, 61200, Czech Republic
| | - Martin Pumera
- Future Energy and Innovation Laboratory, Central European Institute of Technology, Brno University of Technology (CEITEC-BUT), Purkyňova 123, Brno, 61200, Czech Republic
- 3D Printing & Innovation Hub, Department of Food Technology, Mendel University in Brno, Zemedelska 1/1665, Brno, 613 00, Czech Republic
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-Gu, Seoul, 03722, South Korea
- Department of Medical Research, China Medical University Hospital, China Medical University, No. 91 Hsueh-Shih Road, Taichung, 40402, Taiwan
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28
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29
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Pfaff G. Inorganic luminescent pigments. PHYSICAL SCIENCES REVIEWS 2021. [DOI: 10.1515/psr-2020-0180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Inorganic luminescent pigments (luminescent materials, luminophores, phosphors) as synthetically generated crystalline compositions absorb energy followed by emission of light with lower energy, respectively, longer wavelengths. The light emission occurs often in the visible spectral range. External energy is necessary to enable luminescent materials to generate light. Luminescent pigments are divided into fluorescent and phosphorescent pigments. This classification goes back to different energy transitions. Emission based on allowed optical transitions, with decay times in the order of µs or faster is defined as fluorescence. Emission with longer decay times is called phosphorescence. The occurrence of fluorescence or phosphorescence as well as the decay time depend on structure and composition of a specific luminophore. There are four luminescence mechanisms discussed for inorganic luminescent materials: center luminescence, charge-transfer luminescence, donor–acceptor pair luminescence, and long-afterglow phosphorescence. The emission of luminescent light can have its origin in different excitation mechanisms such as optical excitation (UV radiation or even visible light), high-voltage or low-voltage electroluminescence and excitation with high energy particles (X-rays, γ-rays). Inorganic luminescent pigments are used mainly in fluorescent lamps, cathode-ray tubes, projection television tubes, plasma display panels, light-emitting diodes (LEDs) and for X-ray and γ-ray detection. The pigment particles are dispersed for the applications in specific binder systems. They are applied in form of thin layers and by means of luminophore/solvent suspensions, containing adhesive agents, on a substrate.
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Affiliation(s)
- Gerhard Pfaff
- Anorganische Chemie , Technische Universität Darmstadt , Alarich-Weiß-Str. 12 , Darmstadt , 64287 Germany
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30
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Kwon T, Mun HY, Seo S, Yu A, Lee C, Lee Y. Amperometric Sensing of Carbon Monoxide: Improved Sensitivity and Selectivity via Nanostructure-Controlled Electrodeposition of Gold. BIOSENSORS 2021; 11:334. [PMID: 34562925 PMCID: PMC8468895 DOI: 10.3390/bios11090334] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/09/2021] [Accepted: 09/10/2021] [Indexed: 01/04/2023]
Abstract
A series of gold (Au) nanostructures, having different morphologies, were fabricated for amperometric selective detection of carbon monoxide (CO), a biologically important signaling molecule. Au layers were electrodeposited from a precursor solution of 7 mM HAuCl4 with a constant deposition charge (0.04 C) at various deposition potentials. The obtained Au nanostructures became rougher and spikier as the deposition potential lowered from 0.45 V to 0.05 V (vs. Ag/AgCl). As prepared Au layers showed different hydrophobicity: The sharper morphology, the greater hydrophobicity. The Au deposit formed at 0.05 V had the sharpest shape and the greatest surface hydrophobicity. The sensitivity of an Au deposit for amperometric CO sensing was enhanced as the Au surface exhibits higher hydrophobicity. In fact, CO selectivity over common electroactive biological interferents (L-ascorbic acid, 4-acetamidophenol, 4-aminobutyric acid and nitrite) was improved eminently once the Au deposit became more hydrophobic. The most hydrophobic Au was also confirmed to sense CO exclusively without responding to nitric oxide, another similar gas signaling molecule, in contrast to a hydrophobic platinum (Pt) counterpart. This study presents a feasible strategy to enhance the sensitivity and selectivity for amperometric CO sensing via the fine control of Au electrode nanostructures.
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Affiliation(s)
| | | | | | | | | | - Youngmi Lee
- Department of Chemistry & Nanoscience, Ewha Womans University, Seoul 03760, Korea; (T.K.); (H.Y.M.); (S.S.); (A.Y.); (C.L.)
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31
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Handle PH, Zaccarelli E, Gnan N. Effective potentials induced by mixtures of patchy and hard co-solutes. J Chem Phys 2021; 155:064901. [PMID: 34391347 DOI: 10.1063/5.0059304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The addition of co-solutes to colloidal suspensions is often employed to induce tunable depletion interactions. In this work, we investigate effective colloidal interactions arising from binary co-solute mixtures of hard spheres and patchy particles. By changing the relative concentration of the two species, we show that the resulting effective potential Veff continuously changes from the one obtained for a single-component hard sphere co-solute to that mediated by the single-component patchy particle co-solute. Interestingly, we find that, independent of the relative concentration of the two components, the resulting Veff is additive, i.e., it is well-described by the linear combination of the effective interactions mediated by respective pure co-solutes. However, a breakdown of the additivity occurs when the co-solute mixture is close to the onset of a demixing transition. These results represent a step forward in understanding and predicting colloidal behavior in complex and crowded environments and for exploiting this knowledge to design targeted colloidal superstructures.
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Affiliation(s)
- Philip H Handle
- Institute of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020, Innsbruck, Austria
| | - Emanuela Zaccarelli
- Institute of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020, Innsbruck, Austria
| | - Nicoletta Gnan
- Institute of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020, Innsbruck, Austria
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32
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Heil C, Jayaraman A. Computational Reverse-Engineering Analysis for Scattering Experiments of Assembled Binary Mixture of Nanoparticles. ACS MATERIALS AU 2021; 1:140-156. [PMID: 36855396 PMCID: PMC9888618 DOI: 10.1021/acsmaterialsau.1c00015] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
In this paper, we describe a computational method for analyzing results from scattering experiments on dilute solutions of supraparticles, where each supraparticle is created by the assembly of nanoparticle mixtures. Taking scattering intensity profiles and nanoparticle mixture composition and size distributions in each supraparticle as input, this computational approach called computational reverse engineering analysis for scattering experiments (CREASE) uses a genetic algorithm to output information about the structure of the assembled nanoparticles (e.g., real space pair correlation function, extent of nanoparticle mixing/segregation, sizes of domains) within a supraparticle. We validate this method by taking as input in silico scattering intensity profiles from coarse-grained molecular simulations of a binary mixture of nanoparticles, forming a close-packed structure and testing if our computational method can correctly reproduce the nanoparticle structure observed in those simulations. We test the strengths and limitations of our method using a variety of in silico scattering intensity profiles obtained from simulations of a spherical or a cubic supraparticle comprising binary nanoparticle mixtures with varying chemistries, with and without dispersity in sizes, that exhibit well-mixed to strongly segregated structures. The strengths of the presented method include its capability to analyze scattering intensity profiles even when the wavevector q range is limited, to handily provide all of the pairwise radial distribution functions, and to correctly determine the extent of segregation/mixing of the nanoparticles assembled in complex geometries.
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Affiliation(s)
- Christian
M. Heil
- Department
of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United
States
| | - Arthi Jayaraman
- Department
of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United
States,Department
of Materials Science and Engineering, University
of Delaware, 201 DuPont Hall, Newark, Delaware 19716, United
States,
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33
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Perton F, Cotin G, Kiefer C, Strub JM, Cianferani S, Greneche JM, Parizel N, Heinrich B, Pichon B, Mertz D, Begin-Colin S. Iron Stearate Structures: An Original Tool for Nanoparticles Design. Inorg Chem 2021; 60:12445-12456. [PMID: 34339179 DOI: 10.1021/acs.inorgchem.1c01689] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Iron carboxylates are widely used as iron precursors in the thermal decomposition process or considered as in situ formed intermediate precursors. Their molecular and three-dimensional (3D)-structural nature has been shown to affect the shape, size, and composition of the resulting iron oxide nanoparticles (NPs). Among carboxylate precursors, stearates are particularly attractive because of their higher stability to aging and hydration and they are used as additives in many applications. Despite the huge interest of iron stearates, very few studies aimed up to now at deciphering their full metal-ligand structures and the mechanisms allowing us to achieve in a controlled manner the bottom-up NP formation. In this work, we have thus investigated the molecular structure and composition of two iron stearate precursors, synthesized by introducing either two (FeSt2) or three (FeSt3) stearate (St) chains. Interestingly, both iron stearates consist of lamellar structures with planes of iron polynuclear complexes (polycations) separated with stearate chains in all-trans conformation. The iron content in polycations was found very different between both iron stearates. Their detailed characterizations indicate that FeSt2 is mainly composed of [Fe3-(μ3-O)St6·xH2O]Cl, with no (or few) free stearate, whereas FeSt3 is a mixture of mainly [Fe7(μ3-O(H))6(μ2-OH)xSt12-2x]St with some [Fe3(μ3-O)St6·xH2O]St and free stearic acid. The formation of bigger polynuclear complexes with FeSt3 was related to higher hydrolysis and condensation rates within the iron(III) chloride solution compared to the iron(II) chloride solution. These data suggested a nucleation mechanism based on the condensation of polycation radicals generated by the catalytic departure of two stearate chains from an iron polycation-based molecule.
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Affiliation(s)
- Francis Perton
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France.,Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
| | - Geoffrey Cotin
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France.,Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
| | - Céline Kiefer
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France.,Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
| | - Jean-Marc Strub
- Laboratoire de Spectrométrie de Masse BioOrganique, Université Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - Sarah Cianferani
- Laboratoire de Spectrométrie de Masse BioOrganique, Université Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - Jean-Marc Greneche
- Institut des Molécules et Matériaux du Mans IMMM UMR CNRS 6283, Université du Maine, Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
| | - Nathalie Parizel
- Institut de Chimie de Strasbourg (UMR 7177, CNRS Unistra), F-67081 Strasbourg, France.,Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, F-67081 Strasbourg, France.,French EPR Federation of Research (Reseau National de Rpe Interdisciplinaire, RENARD), Fédération IR-RPE CNRS 3443, 67000 Strasbourg, France
| | - Benoît Heinrich
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France
| | - Benoit Pichon
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France.,Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
| | - Damien Mertz
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France.,Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
| | - Sylvie Begin-Colin
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France.,Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
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34
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Ramya E, Jyothi L, Desai NR. Nonlinear Optical Properties and Cytotoxicity Studies of Fruit Extract Synthesized Silver and Gold Nanostructures. INTERNATIONAL JOURNAL OF NANOSCIENCE 2021. [DOI: 10.1142/s0219581x21500319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Eco-friendlybiosynthesis of silver nanoparticles (Ag NPs) and gold (Au NPs) nanoparticles by using Punica granatum and C. reticulata extracts were synthesized efficiently. Ag and Au NPs with sizes 8–10 nm and 30–40 nm were successfully synthesized and extracts serve as capping agents. Forming of NPs was confirmed through UV-visible spectra, transmission electron microscopy (TEM), X-ray diffraction (XRD) and Fourier transform infrared spectra (FTIR) studies. The effect of NPs on the luminescence of Eu(TTFA)3 and Sm(TTFA)3 complexes was investigated. Luminescence intensities of the complexes were enhanced several times in the presence of silver and get quenched due to reabsorption of Au NPs. The nonlinear optical properties of NPs were calculated using open aperture Z-scan and degenerate four-wave mixing in the femtosecond region. The toxicity and antimicrobial activities of Ag and Au NPs were studied.
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Affiliation(s)
- E. Ramya
- Department of Science and Humanities, CMR Institute of Technology, Kandlakoya, Hyderabad Telangana 501401, India
| | - L. Jyothi
- School of Physics, University of Hyderabad. Hyderabad, Telangana 500046, India
| | - Narayana Rao Desai
- School of Physics, University of Hyderabad. Hyderabad, Telangana 500046, India
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35
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Li M, Yin F, Song L, Mao X, Li F, Fan C, Zuo X, Xia Q. Nucleic Acid Tests for Clinical Translation. Chem Rev 2021; 121:10469-10558. [PMID: 34254782 DOI: 10.1021/acs.chemrev.1c00241] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Nucleic acids, including deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), are natural biopolymers composed of nucleotides that store, transmit, and express genetic information. Overexpressed or underexpressed as well as mutated nucleic acids have been implicated in many diseases. Therefore, nucleic acid tests (NATs) are extremely important. Inspired by intracellular DNA replication and RNA transcription, in vitro NATs have been extensively developed to improve the detection specificity, sensitivity, and simplicity. The principles of NATs can be in general classified into three categories: nucleic acid hybridization, thermal-cycle or isothermal amplification, and signal amplification. Driven by pressing needs in clinical diagnosis and prevention of infectious diseases, NATs have evolved to be a rapidly advancing field. During the past ten years, an explosive increase of research interest in both basic research and clinical translation has been witnessed. In this review, we aim to provide comprehensive coverage of the progress to analyze nucleic acids, use nucleic acids as recognition probes, construct detection devices based on nucleic acids, and utilize nucleic acids in clinical diagnosis and other important fields. We also discuss the new frontiers in the field and the challenges to be addressed.
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Affiliation(s)
- Min Li
- Institute of Molecular Medicine, Department of Liver Surgery, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Fangfei Yin
- Institute of Molecular Medicine, Department of Liver Surgery, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Lu Song
- Institute of Molecular Medicine, Department of Liver Surgery, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,Division of Physical Biology, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Xiuhai Mao
- Institute of Molecular Medicine, Department of Liver Surgery, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Fan Li
- Institute of Molecular Medicine, Department of Liver Surgery, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Chunhai Fan
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiaolei Zuo
- Institute of Molecular Medicine, Department of Liver Surgery, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Qiang Xia
- Institute of Molecular Medicine, Department of Liver Surgery, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
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36
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Fabrication of solid and hollow colloidosomes through self-assembly of micronsized polymer particles and their controlled transition. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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37
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Mondal S, Subramaniam C. Scalable approach towards specific and ultrasensitive cation sensing under harsh environmental conditions by engineering the analyte-transducer interface. NANOSCALE ADVANCES 2021; 3:3752-3761. [PMID: 36133005 PMCID: PMC9418407 DOI: 10.1039/d0na01042a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 05/17/2021] [Indexed: 06/16/2023]
Abstract
Affordable and high-performing sensing platforms are becoming increasingly critical for sustainable environmental monitoring and medical diagnostics. Such miniaturized and point-of-care sensing platforms need to overcome the fundamental tradeoff between ultrahigh sensitivity and specificity while retaining the dynamic concentration range and robustness of operation. Therefore, designing scalable and robust sensors poses an escalating and immediate demand in a rapidly automated society. Addressing this demand, we demonstrate a cable-type electrochemical sensing platform exhibiting rapid (10 s), extremely reliable (RSD <5%) and ultrahigh sensitivity (ppb levels) towards K+, Cd2+ and Hg2+ found in complex biofluids such as human perspiration and effluent water. The sensor delivers quantifiable performance even with 10 μL of analyte without any requirement of purification or preconcentration and thereby overcomes an important bottleneck for on-field diagnostics. The backbone of the sensor consists of single-walled carbon nanotubes (CNTs) that are conformally coated on affordable cellulose yarns to form ideally non-Faradaic, electrically conductive, capacitive electrodes (CNT-thread). Subsequent coaxial coating of such CNT-threads with an appropriate ionophore membrane (IM) realizes the working electrode exhibiting uniformity in the surface coverage of the ionophore leading to reliable and directly quantifiable signals. Furthermore, we show that the extensive CNT-thread-IM interface is critical to achieve ultrahigh sensitivity and robust operability. Importantly, the design approach adopted is universal and scalable for a range of cations such as K+, Hg2+ and Cd2+. Thus, the sensor delivers ultrasensitive detection of K+ from very low volumes (10 μL) of human perspiration that contains a wide range of other ions (Cu2+, Zn2+, Cd2+, Fe2+, NO3 -, Cl-) at 1000-fold higher ionic strength along with bioinorganic suspended matter (dead cells, organelles). This eliminates any sample treatment or preconcentration requirements thereby overcoming a major obstacle for point-of-care applications. Furthermore, both multicomponent and multivariate analyses are demonstrated with the sensing device targeting portable and wearable applications.
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Affiliation(s)
- Sudeshna Mondal
- Department of Chemistry, Indian Institute of Technology Bombay Powai 400076 Mumbai India
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38
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Huang Y, Tran H, Ober CK. High-Resolution Nanopatterning of Free-Standing, Self-Supported Helical Polypeptide Rod Brushes via Electron Beam Lithography. ACS Macro Lett 2021; 10:755-759. [PMID: 35549094 DOI: 10.1021/acsmacrolett.1c00187] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
In this study of nanopatterned helical poly(benzyl-l-glutamate) (PBLG) brushes, rod-type brush arrays were fabricated via an integrated process of high-resolution lithography and surface-initiated vapor deposition polymerization (SI-VDP). "Nanospikes" of polymer brushes with spacings of less than 100 nm were produced. The topology and areal behavior of the resulting patterned rod-like brushes were analyzed and compared with patterned coil-type brushes. A geometric study of these self-assembled "nanospikes" was carried out, and their cross sections were investigated via focused ion beam (FIB) and scanning electron microscopy (SEM). Furthermore, the presence of poly(N-isopropylacrylamide) (PNIPAM) brushes in unpatterned regions was shown to inhibit undesired "inter-spike" bridging of the PBLG brushes, resulting in more well-defined nanostructures. It was shown that rod-like polypeptide brushes are capable of self-segregation and become arranged vertically without any external support from their surroundings, to form a rod bundle end-point functional topography that could provide possible pathways for studies of model biological surfaces, directed assembly of nanoparticles, or binary mixed brush surfaces with dual properties.
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39
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Al-Otaibi AL. Yttrium Doped Single-Crystalline Orthorhombic Molybdenum Oxide Micro-Belts: Synthesis, Structural, Optical and Photocatalytic Properties. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-01999-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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40
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Barad HN, Kwon H, Alarcón-Correa M, Fischer P. Large Area Patterning of Nanoparticles and Nanostructures: Current Status and Future Prospects. ACS NANO 2021; 15:5861-5875. [PMID: 33830726 PMCID: PMC8155328 DOI: 10.1021/acsnano.0c09999] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 04/02/2021] [Indexed: 05/05/2023]
Abstract
Nanoparticles possess exceptional optical, magnetic, electrical, and chemical properties. Several applications, ranging from surfaces for optical displays and electronic devices, to energy conversion, require large-area patterns of nanoparticles. Often, it is crucial to maintain a defined arrangement and spacing between nanoparticles to obtain a consistent and uniform surface response. In the majority of the established patterning methods, the pattern is written and formed, which is slow and not scalable. Some parallel techniques, forming all points of the pattern simultaneously, have therefore emerged. These methods can be used to quickly assemble nanoparticles and nanostructures on large-area substrates into well-ordered patterns. Here, we review these parallel methods, the materials that have been processed by them, and the types of particles that can be used with each method. We also emphasize the maximal substrate areas that each method can pattern and the distances between particles. Finally, we point out the advantages and disadvantages of each method, as well as the challenges that still need to be addressed to enable facile, on-demand large-area nanopatterning.
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Affiliation(s)
- Hannah-Noa Barad
- Max
Planck Institute for Intelligent Systems, Heisenbergstrasse 3, 70569 Stuttgart, Germany
| | - Hyunah Kwon
- Max
Planck Institute for Intelligent Systems, Heisenbergstrasse 3, 70569 Stuttgart, Germany
| | - Mariana Alarcón-Correa
- Max
Planck Institute for Intelligent Systems, Heisenbergstrasse 3, 70569 Stuttgart, Germany
| | - Peer Fischer
- Max
Planck Institute for Intelligent Systems, Heisenbergstrasse 3, 70569 Stuttgart, Germany
- Institute
of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
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41
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Appel C, Kuttich B, Kraus T, Stühn B. In situ investigation of temperature induced agglomeration in non-polar magnetic nanoparticle dispersions by small angle X-ray scattering. NANOSCALE 2021; 13:6916-6920. [PMID: 33885492 DOI: 10.1039/d0nr08434d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Non-polar magnetic nanoparticles agglomerate upon cooling. This process is followed by in situ small angle X-ray scattering to assess structural properties of the emerging agglomerates. On the length scale of a few particle diameters, no differences are found between the agglomerates of small (d = 12 nm) and large (d = 22 nm) nanoparticles. Hard-sphere like random packing with a local packing fraction of η = 0.4 is seen. On larger length scales, small particles form compact superstructures, while large particles arrange into agglomerates that resemble chain-like structures in SAXS. This can be explained by directed magnetic dipole interactions that dominate larger particles, while isotropic van der Waals interaction governs the agglomeration of smaller particles.
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Affiliation(s)
- Christian Appel
- Experimental Condensed Matter Physics, TU Darmstadt, Germany
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42
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Mann VR, Manea F, Borys NJ, Ajo-Franklin CM, Cohen BE. Controlled and Stable Patterning of Diverse Inorganic Nanocrystals on Crystalline Two-Dimensional Protein Arrays. Biochemistry 2021; 60:1063-1074. [PMID: 33691067 DOI: 10.1021/acs.biochem.1c00032] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Controlled patterning of nanoparticles on bioassemblies enables synthesis of complex materials for applications in optics, nanoelectronics, and sensing. Biomolecular self-assembly offers molecular control for engineering patterned nanomaterials, but current approaches have been limited in their ability to combine high nanoparticle coverage with generality that enables incorporation of multiple nanoparticle types. Here, we synthesize photonic materials on crystalline two-dimensional (2D) protein sheets using orthogonal bioconjugation reactions, organizing quantum dots (QDs), gold nanoparticles (AuNPs), and upconverting nanoparticles along the surface-layer (S-layer) protein SbsB from the extremophile Geobacillus stearothermophilus. We use electron and optical microscopy to show that isopeptide bond-forming SpyCatcher and SnoopCatcher systems enable the simultaneous and controlled conjugation of multiple types of nanoparticles (NPs) at high densities along the SbsB sheets. These NP conjugation reactions are orthogonal to each other and to Au-thiol bond formation, allowing tailorable nanoparticle combinations at sufficient labeling efficiencies to permit optical interactions between nanoparticles. Fluorescence lifetime imaging of SbsB sheets conjugated to QDs and AuNPs at distinct attachment sites shows spatially heterogeneous QD emission, with shorter radiative decays and brighter fluorescence arising from plasmonic enhancement at short interparticle distances. This specific, stable, and efficient conjugation of NPs to 2D protein sheets enables the exploration of interactions between pairs of nanoparticles at defined distances for the engineering of protein-based photonic nanomaterials.
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43
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Hassani N. Theoretical investigation of the interaction between the metal phthalocyanine [MPc]a(M = Sc, Ti, and V; a = -1, 0, and +1) complexes and formaldehyde. Turk J Chem 2021; 45:119-131. [PMID: 33679158 PMCID: PMC7925323 DOI: 10.3906/kim-2006-12] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 10/23/2020] [Indexed: 11/05/2022] Open
Abstract
Formaldehyde (FA, CH2O) is one of the toxic volatile organic compounds that cause harmful effects on the human body. In this work, the interaction of FA gas with metal phthalocyanine (MPc) molecules was studied by employing density functional theory calculations. A variety of [MPc]a (M = Sc, Ti, and V; a = –1, 0, and +1) complexes were studied, and the electronic properties, interaction energies, and charge transfer properties of all of the studied molecules were systematically discussed. Among the studied complexes, the Sc and Ti phthalocyanines were more reactive toward the adsorption of FA gas. Moreover, it was revealed that the interaction of the [ScPc]+1 and [TiPc]0 complexes with the CH2O molecule was stronger, in which the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy gap of 46% and 36% decreased after FA adsorption. The results indicated that the MPc-based materials may be a promising candidate for the detection of FA gas.
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Affiliation(s)
- Nasim Hassani
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz Iran
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44
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Daughtry J, Alotabi AS, Howard-Fabretto L, Andersson GG. Composition and properties of RF-sputter deposited titanium dioxide thin films. NANOSCALE ADVANCES 2021; 3:1077-1086. [PMID: 36133287 PMCID: PMC9417277 DOI: 10.1039/d0na00861c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 12/07/2020] [Indexed: 06/16/2023]
Abstract
The photocatalytic properties of titania (TiO2) have prompted research utilising its useful ability to convert solar energy into electron-hole pairs to drive novel chemistry. The aim of the present work is to examine the properties required for a synthetic method capable of producing thin TiO2 films, with well defined, easily modifiable characteristics. Presented here is a method of synthesis of TiO2 nanoparticulate thin films generated using RF plasma capable of homogenous depositions with known elemental composition and modifiable properties at a far lower cost than single-crystal TiO2. Multiple depositions regimes were examined for their effect on overall chemical composition and to minimise the unwanted contaminant, carbon, from the final film. The resulting TiO2 films can be easily modified through heating to further induce defects and change the electronic structure, crystallinity, surface morphology and roughness of the deposited thin film.
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Affiliation(s)
- Jesse Daughtry
- Flinders Institute for NanoScale Science and Technology, Flinders University Adelaide SA 5001 Australia
- Flinders Microscopy and Microanalysis, College of Science and Engineering, Flinders University Adelaide SA 5042 Australia
| | - Abdulrahman S Alotabi
- Flinders Institute for NanoScale Science and Technology, Flinders University Adelaide SA 5001 Australia
- Flinders Microscopy and Microanalysis, College of Science and Engineering, Flinders University Adelaide SA 5042 Australia
| | - Liam Howard-Fabretto
- Flinders Institute for NanoScale Science and Technology, Flinders University Adelaide SA 5001 Australia
- Flinders Microscopy and Microanalysis, College of Science and Engineering, Flinders University Adelaide SA 5042 Australia
| | - Gunther G Andersson
- Flinders Institute for NanoScale Science and Technology, Flinders University Adelaide SA 5001 Australia
- Flinders Microscopy and Microanalysis, College of Science and Engineering, Flinders University Adelaide SA 5042 Australia
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45
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Plasmonic nanoparticles for colorimetric detection of nitrite and nitrate. Food Chem Toxicol 2021; 149:112025. [PMID: 33556467 DOI: 10.1016/j.fct.2021.112025] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/09/2021] [Accepted: 01/21/2021] [Indexed: 01/09/2023]
Abstract
Irregular and unknowingly use of chemical compounds is a serious threat to the environment, human health, and other living organisms attributable and intensified by the growing population and increasing demand for food. Nitrite and nitrate are among those compounds that are widely used in agricultural and industrial products. Therefore on-site, rapid, simple, and accurate monitoring of nitrite/nitrate is highly desirable. In this review, while emphasizing the importance of nitrite and nitrate in food chain safety and health of living organisms, their measurement methods, in particular, nanoplasmonic colorimetric sensors are comprehensively discussed based on the researches in this field. Nanoplasmonic-based sensors have proved to be successful in comparison with traditional methods due to their low cost, biocompatibility, high sensitivity and selectivity, and most importantly, the ability to visually detect and be used on-site to measure nitrite and nitrate. The design principle of nanoplasmonic sensors will be presented into two categories of aggregation- and etching-based detection followed by their applications in nitrite detection. The nitrate measurement will be discussed based on either direct detection of nitrate or indirect strategy in which nitrate is reduced to nitrite by enzymes or metals. Finally, the remaining challenges and prospects in this topic will be described and outlined.
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Nizameev IR, Nizameeva GR, Faizullin RR, Kadirov MK. Oriented Nickel Nanonetworks and Their Submicron Fibres as a Basis for a Transparent Electrically Conductive Coating. Chemphyschem 2021; 22:288-292. [PMID: 33325116 DOI: 10.1002/cphc.202000876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 12/02/2020] [Indexed: 11/12/2022]
Abstract
The paper demonstrates a technique for applying an oriented nickel network to a glass surface. The method is based on the chemical reduction of nickel salt. The shaping and orientation of the resulting system are carried out using a micellar template of a surfactant and a magnetic field. Submicron nickel fibres are used to impart unity to the plurality of individual-oriented nickel nanonetworks. The result is a single conductive coating on the surface of the glass, which has a transparency in the optical range. Investigations of the structure, chemical composition, morphology and electrical conductivity of the coating were performed.
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Affiliation(s)
- Irek R Nizameev
- Laboratory of electrochemical synthesis, Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of Russian Academy of Sciences, Arbuzov str. 8, Kazan, 420088, Russian Federation.,Department for Nanotechnologies in Electronics, Kazan National Research Technical University named after A.N. Tupolev - KAI, K. Marx str. 10, Kazan, 420111, Russian Federation
| | - Guliya R Nizameeva
- Department of physics, Kazan National Research Technological University, K. Marx str. 68, Kazan, 420015, Russian Federation
| | - Rashid R Faizullin
- Department for Nanotechnologies in Electronics, Kazan National Research Technical University named after A.N. Tupolev - KAI, K. Marx str. 10, Kazan, 420111, Russian Federation
| | - Marsil K Kadirov
- Laboratory of electrochemical synthesis, Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of Russian Academy of Sciences, Arbuzov str. 8, Kazan, 420088, Russian Federation
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Alle M, Park SC, Bandi R, Lee SH, Kim JC. Rapid in-situ growth of gold nanoparticles on cationic cellulose nanofibrils: Recyclable nanozyme for the colorimetric glucose detection. Carbohydr Polym 2021; 253:117239. [PMID: 33278995 DOI: 10.1016/j.carbpol.2020.117239] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 10/08/2020] [Accepted: 10/11/2020] [Indexed: 01/11/2023]
Abstract
Novel microwave-assisted green in-situ synthesis of positively charged gold nanoparticles (AuNPs) supported by cationic cellulose nanofibrils (C.CNF) within 30 s and devoid of additional reducing agent is reported. Peroxidase activity of these positive AuNPs was studied and that appeared to be superior over its negative charged counterpart. Further the AuNPs@C.CNF is casted into a film which makes it reusable. Using TMB substrate, simple and sensitive colorimetric detection methods for H2O2 and glucose were established. Under optimal conditions, the linear ranges were found to be 0.5-30 μM and 1-60 μM, and the detection limits were 0.30 and 0.67 μM for H2O2 and glucose, respectively. The film was potentially reused for the detection of glucose up to five cycles without a decrease in the activity. Further, this technique was employed to quantify glucose in human serum samples, and the obtained results were comparable with those of the standard GOD-POD method.
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Affiliation(s)
- Madhusudhan Alle
- Institute of Forest Science, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Soo Chan Park
- Department of Medical Biomaterials Engineering, College of Biomedical Science and Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Rajkumar Bandi
- Institute of Forest Science, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Seung-Hwan Lee
- Department of Forest Biomaterials Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, 24341, Republic of Korea.
| | - Jin-Chul Kim
- Department of Medical Biomaterials Engineering, College of Biomedical Science and Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon, 24341, Republic of Korea.
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Handrea-Dragan M, Botiz I. Multifunctional Structured Platforms: From Patterning of Polymer-Based Films to Their Subsequent Filling with Various Nanomaterials. Polymers (Basel) 2021; 13:445. [PMID: 33573248 PMCID: PMC7866561 DOI: 10.3390/polym13030445] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 01/25/2021] [Accepted: 01/26/2021] [Indexed: 12/20/2022] Open
Abstract
There is an astonishing number of optoelectronic, photonic, biological, sensing, or storage media devices, just to name a few, that rely on a variety of extraordinary periodic surface relief miniaturized patterns fabricated on polymer-covered rigid or flexible substrates. Even more extraordinary is that these surface relief patterns can be further filled, in a more or less ordered fashion, with various functional nanomaterials and thus can lead to the realization of more complex structured architectures. These architectures can serve as multifunctional platforms for the design and the development of a multitude of novel, better performing nanotechnological applications. In this work, we aim to provide an extensive overview on how multifunctional structured platforms can be fabricated by outlining not only the main polymer patterning methodologies but also by emphasizing various deposition methods that can guide different structures of functional nanomaterials into periodic surface relief patterns. Our aim is to provide the readers with a toolbox of the most suitable patterning and deposition methodologies that could be easily identified and further combined when the fabrication of novel structured platforms exhibiting interesting properties is targeted.
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Affiliation(s)
- Madalina Handrea-Dragan
- Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, 42 Treboniu Laurian Str. 400271 Cluj-Napoca, Romania;
- Faculty of Physics, Babes-Bolyai University, 1 M. Kogalniceanu Str. 400084 Cluj-Napoca, Romania
| | - Ioan Botiz
- Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, 42 Treboniu Laurian Str. 400271 Cluj-Napoca, Romania;
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Zhao S, Riedel M, Patarroyo J, Bastus N, Puntes V, Yue Z, Lisdat F, Parak WJ. Introducing visible-light sensitivity into photocatalytic CeO 2 nanoparticles by hybrid particle preparation exploiting plasmonic properties of gold: enhanced photoelectrocatalysis exemplified for hydrogen peroxide sensing. NANOSCALE 2021; 13:980-990. [PMID: 33367345 DOI: 10.1039/d0nr06356h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
In this report we combine the catalytic properties of CeO2 nanoparticles with their transduction ability for photoelectrochemical sensing. This study highlights the usage of CeO2 providing catalytic activity towards H2O2, but only with a limited excitation range in the UV for the construction of a sensing system. In order to improve the photoelectrocatalysis of CeO2 nanoparticles by extending their excitation to visible light, Au/CeO2 core/shell hybrid nanoparticles have been synthesized. The hybrid nanoparticles are fixed on electrodes, allowing for the generation of photocurrents, the direction of which can be controlled by the electrode potential (without bias). The application of the hybrid nanoparticles results in an enhanced photocurrent amplitude under white light illumination as compared to the pure CeO2 nanoparticles. Wavelength-dependent measurements confirm the participation of the Au core in the signal transduction. This can be explained by improved charge carrier generation within the hybrid particles. Thus, by using a plasmonic element the photoelectochemical response of a catalytic nanoparticle (i.e. CeO2) has been spectrally extended. The effect can be exploited for sensorial hydrogen peroxide detection. Here higher photocatalytic current responses have been found for the hybrid particles fixed to gold electrodes although the catalytic reduction has been comparable for both types of nanoparticles. Thus, it can be demonstrated that Au/CeO2 core-shell nanoparticles allow the utilization of visible light for photoelectrochemical hydrogen peroxide (H2O2) detection with improved sensitivity under white light illumination or application of such particles with only visible light excitation, which is not possible for pure CeO2. With help of the layer-by-layer (LbL) technique for nanoparticle immobilization, the electrode response can be adjusted and with a 5 layers electrode a low detection limit of about 3 μM H2O2 with a linear detection range up to 2000 μM is obtained.
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Affiliation(s)
- Shuang Zhao
- Fachbereich Physik, CHyN, Universität Hamburg, 22761, Hamburg, Germany
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