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Hourdakis E, Bardakas A, Segkos A, Tsilivaki S, Gardelis S, Tsamis C. Tunable and white light photoluminescence from ZnO on porous Si with the addition of carbon quantum dots. NANOTECHNOLOGY 2023; 34:455202. [PMID: 37536299 DOI: 10.1088/1361-6528/aced0f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 08/03/2023] [Indexed: 08/05/2023]
Abstract
In this work we demonstrate a two-pixel solid-state photoluminescent device able to emit white light covering the entire visible spectrum from 380 nm up to 800 nm. The device is based on a combination of porous Si, hydrothermally grown ZnO and carbon quantum dots, in a two-pixel formation, with porous Si and ZnO acting independently while the carbon quantum dots are deposited on top of the entire device. All processing is done using standard Si processing techniques. Moreover, the device design allows for tunability of the emitted spectrum simply by choosing the desired combination of the materials. Overall, the demonstrated device is low cost, environmentally safe and biocompatible.
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Affiliation(s)
- E Hourdakis
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos, Athens, Greece
| | - A Bardakas
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos, Athens, Greece
| | - A Segkos
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos, Athens, Greece
| | - S Tsilivaki
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos, Athens, Greece
- Department of Physics, National Kapodistrian University of Athens, Athens, Greece
| | - S Gardelis
- Department of Physics, National Kapodistrian University of Athens, Athens, Greece
| | - C Tsamis
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos, Athens, Greece
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Saber G, El-Dissouky A, Badie G, Ebrahim S, Shokry A. Capped ZnO quantum dots with a tunable photoluminescence for acetone detection. RSC Adv 2023; 13:16453-16470. [PMID: 37274405 PMCID: PMC10233348 DOI: 10.1039/d3ra00491k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 05/22/2023] [Indexed: 06/06/2023] Open
Abstract
Acetone is a dangerous material that poses a major risk to human health. To protect against its harmful impacts, a fluorescent biosensor 3-aminopropyl triethoxysilane capped ZnO quantum dots (APTES/ZnO QDs) was investigated to detect low concentrations of acetone. Numerous techniques, including Fourier transform infrared (FTIR), energy dispersive X-ray (EDX), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), zeta potential, UV-vis absorption, and photoluminescence (PL), are used to thoroughly verify the successful synthesis of pristine ZnO QDs and APTES/ZnO QDs. The HRTEM micrograph showed that the average size distributions of ZnO QDs and APTES/ZnO QDs were spherical forms of 2.6 and 1.2 nm, respectively. This fluorescent probe dramatically increased its sensitivity toward acetone with a wide linear response range of 0.1-18 mM and a correlation coefficient (R2) of 0.9987. The detection limit of this sensing system for acetone is as low as 42 μM. The superior selectivity of acetone across numerous interfering bioanalytics is confirmed. Reproducibility and repeatability experiments presented relative standard deviations (RSD) of 2.2% and 2.4%, respectively. Finally, this developed sensor was applied successfully for detecting acetone in a diabetic patient's urine samples with a recovery percentage ranging from 97 to 102.7%.
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Affiliation(s)
- Goerget Saber
- Department of Chemistry and Physics, Faculty of Education, Alexandria University El-Shatby 21526 Alexandria Egypt
| | - Ali El-Dissouky
- Department of Chemistry, Faculty of Science, Alexandria University Ibrahimia, P. O. Box 426 Alexandria Egypt
| | - Gamal Badie
- Department of Chemistry and Physics, Faculty of Education, Alexandria University El-Shatby 21526 Alexandria Egypt
| | - Shaker Ebrahim
- Department of Materials Science, Institute of Graduate Studies and Research (IGSR), Alexandria University 163 Horrya Avenue, El-Shatby, P. O. Box 832 Alexandria Egypt
| | - Azza Shokry
- Department of Materials Science, Institute of Graduate Studies and Research (IGSR), Alexandria University 163 Horrya Avenue, El-Shatby, P. O. Box 832 Alexandria Egypt
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Tian S, Wang M, Fornasiero P, Yang X, Ramakrishna S, Ho SH, Li F. Recent advances in MXenes-based glucose biosensors. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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Murzalinov D, Kemelbekova A, Seredavina T, Spivak Y, Serikkanov A, Shongalova A, Zhantuarov S, Moshnikov V, Mukhamedshina D. Self-Organization Effects of Thin ZnO Layers on the Surface of Porous Silicon by Formation of Energetically Stable Nanostructures. MATERIALS (BASEL, SWITZERLAND) 2023; 16:838. [PMID: 36676575 PMCID: PMC9860583 DOI: 10.3390/ma16020838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 12/29/2022] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
The formation of complex surface morphology of a multilayer structure, the processes of which are based on quantum phenomena, is a promising domain of the research. A hierarchy of pore of various sizes was determined in the initial sample of porous silicon by the atomic force microscopy. After film deposition by spray pyrolysis, ZnO nanoclusters regularly distributed over the sample surface were formed. Using the electron paramagnetic resonance (EPR) method it was determined that the localization of paramagnetic centers occurs more efficiently as a result of the ZnO deposition. An increase in the number of deposited layers, leads to a decrease in the paramagnetic center relaxation time, which is probably connected with the formation of ZnO nanocrystals with energetically stable properties. The nucleation and formation of nanocrystals is associated with the interaction of particles with an uncompensated charge. There is no single approach to determine the mechanism of this process. By the EPR method supplemented with the signal cyclic saturation, spectral manifestations from individual centers were effectively separated. Based on electron paramagnetic resonance and photoluminescence studies it was revealed that the main transitions between energy levels are due to oxygen vacancies and excitons.
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Affiliation(s)
- Danatbek Murzalinov
- Institute of Physics and Technology, Satbayev University, Almaty 050013, Kazakhstan
| | - Ainagul Kemelbekova
- Institute of Physics and Technology, Satbayev University, Almaty 050013, Kazakhstan
| | - Tatyana Seredavina
- Institute of Physics and Technology, Satbayev University, Almaty 050013, Kazakhstan
| | - Yulia Spivak
- Microelectronics Department, Saint-Petersburg State Electrotechnical University, 5 Professora Popova Street, 197376 Saint-Petersburg, Russia
| | - Abay Serikkanov
- Institute of Physics and Technology, Satbayev University, Almaty 050013, Kazakhstan
| | - Aigul Shongalova
- Institute of Physics and Technology, Satbayev University, Almaty 050013, Kazakhstan
| | - Sultan Zhantuarov
- Institute of Physics and Technology, Satbayev University, Almaty 050013, Kazakhstan
| | - Vyacheslav Moshnikov
- Microelectronics Department, Saint-Petersburg State Electrotechnical University, 5 Professora Popova Street, 197376 Saint-Petersburg, Russia
| | - Daniya Mukhamedshina
- Institute of Physics and Technology, Satbayev University, Almaty 050013, Kazakhstan
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Formation and Photoluminescence Properties of ZnO Nanoparticles on Electrospun Nanofibers Produced by Atomic Layer Deposition. COATINGS 2020. [DOI: 10.3390/coatings10121199] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The unique combination of optical, chemical, and structural properties of one-dimensional zinc oxide (1D ZnO) makes it one of the most attractive materials in a wide range of research and applications. In the present study, 1D ZnO nanomaterials were fabricated using a combination of two independent methods: electrospinning and atomic layer deposition (ALD). The electrospinning technique was used to produce 1D electrospun fibers consisting of four types of polymers: polylactic acid (PLLA), polyvinylidene fluoride (PVDF), polyvinyl alcohol (PVA), and polyamide 6 (PA6). The ALD technology, in turn, was selected as an excellent candidate for the synthesis of a ZnO thin layer over polymer fibers for the production of 1D ZnO/polymer nanofiber composites (PLLA/ZnO, PVDF/ZnO, PVA/ZnO, PA6/ZnO). Structural and optical properties of the produced nanofibers were studied by means of scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), diffuse reflectance, and photoluminescence (PL) spectroscopy. It was found that only PVDF/ZnO nanofibers exhibit stable room temperature PL that may be the result of a higher ZnO content in the sample. In addition, PL measurements were conducted as a function of excitation power and temperature in order to establish the main PL mechanisms and parameters for the PVDF/ZnO sample, as a most promising candidate for the biophotonic application.
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Damberga D, Fedorenko V, Grundšteins K, Altundal Ş, Šutka A, Ramanavičius A, Coy E, Mrówczyński R, Iatsunskyi I, Viter R. Influence of PDA Coating on the Structural, Optical and Surface Properties of ZnO Nanostructures. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2438. [PMID: 33291264 PMCID: PMC7762110 DOI: 10.3390/nano10122438] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 11/30/2020] [Accepted: 12/02/2020] [Indexed: 12/14/2022]
Abstract
Polydopamine (PDA) is a new biocompatible material, which has prospects in biomedical and sensor applications. Due to functional groups, it can host wide range of biomolecules. ZnO nanostructures are well known templates for optical sensors and biosensors. The combination of ZnO and PDA results in a change of optical properties of ZnO-PDA composites as a shift of photoluminescence (PL) peaks and PL quenching. However, to date, the effect of the PDA layer on fundamental properties of ZnO-PDA nanostructures has not been studied. The presented paper reports on optical and surface properties of novel ZnO-PDA nanocomposites. PDA layers were chemically synthesized on ZnO nanostructures from different solution concentrations of 0.3, 0.4, 0.5 and 0.7 mg/mL. Structure, electronic and optical properties were studied by SEM, Raman, FTIR, diffuse reflectance and photoluminescence methods. The Z-potential of the samples was evaluated in neutral pH (pH = 7.2). The response of the samples towards poly-l-lysine adsorption, as a model molecule, was studied by PL spectroscopy to evaluate the correlation between optical and surface properties. The role of the PDA concentration on fundamental properties was discussed.
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Affiliation(s)
- Daina Damberga
- Institute of Atomic Physics and Spectroscopy, University of Latvia, Jelgavas 3, LV-1004 Riga, Latvia; (D.D.); (V.F.); (K.G.); (Ş.A.); (A.Š.); (A.R.)
| | - Viktoriia Fedorenko
- Institute of Atomic Physics and Spectroscopy, University of Latvia, Jelgavas 3, LV-1004 Riga, Latvia; (D.D.); (V.F.); (K.G.); (Ş.A.); (A.Š.); (A.R.)
| | - Kārlis Grundšteins
- Institute of Atomic Physics and Spectroscopy, University of Latvia, Jelgavas 3, LV-1004 Riga, Latvia; (D.D.); (V.F.); (K.G.); (Ş.A.); (A.Š.); (A.R.)
| | - Şahin Altundal
- Institute of Atomic Physics and Spectroscopy, University of Latvia, Jelgavas 3, LV-1004 Riga, Latvia; (D.D.); (V.F.); (K.G.); (Ş.A.); (A.Š.); (A.R.)
| | - Andris Šutka
- Institute of Atomic Physics and Spectroscopy, University of Latvia, Jelgavas 3, LV-1004 Riga, Latvia; (D.D.); (V.F.); (K.G.); (Ş.A.); (A.Š.); (A.R.)
- Research Laboratory of Functional Materials Technologies, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Paula Valdena 3/7, LV-1048 Riga, Latvia
| | - Arunas Ramanavičius
- Institute of Atomic Physics and Spectroscopy, University of Latvia, Jelgavas 3, LV-1004 Riga, Latvia; (D.D.); (V.F.); (K.G.); (Ş.A.); (A.Š.); (A.R.)
- Laboratory of Nanotechnology, State Research Institute Center for Physical Sciences and Technology, Sauletekio ave.3, LT-10257 Vilnius, Lithuania
| | - Emerson Coy
- NanoBioMedical Centre, Adam Mickiewicz University in Poznan, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland; (E.C.); (R.M.)
| | - Radosław Mrówczyński
- NanoBioMedical Centre, Adam Mickiewicz University in Poznan, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland; (E.C.); (R.M.)
| | - Igor Iatsunskyi
- NanoBioMedical Centre, Adam Mickiewicz University in Poznan, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland; (E.C.); (R.M.)
| | - Roman Viter
- Institute of Atomic Physics and Spectroscopy, University of Latvia, Jelgavas 3, LV-1004 Riga, Latvia; (D.D.); (V.F.); (K.G.); (Ş.A.); (A.Š.); (A.R.)
- Center for Collective Use of Scientific Equipment, Sumy State University, 31, Sanatornaya st., 40018 Sumy, Ukraine
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Wojnarowicz J, Chudoba T, Lojkowski W. A Review of Microwave Synthesis of Zinc Oxide Nanomaterials: Reactants, Process Parameters and Morphoslogies. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1086. [PMID: 32486522 PMCID: PMC7353225 DOI: 10.3390/nano10061086] [Citation(s) in RCA: 129] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/11/2020] [Accepted: 05/19/2020] [Indexed: 12/18/2022]
Abstract
Zinc oxide (ZnO) is a multifunctional material due to its exceptional physicochemical properties and broad usefulness. The special properties resulting from the reduction of the material size from the macro scale to the nano scale has made the application of ZnO nanomaterials (ZnO NMs) more popular in numerous consumer products. In recent years, particular attention has been drawn to the development of various methods of ZnO NMs synthesis, which above all meet the requirements of the green chemistry approach. The application of the microwave heating technology when obtaining ZnO NMs enables the development of new methods of syntheses, which are characterised by, among others, the possibility to control the properties, repeatability, reproducibility, short synthesis duration, low price, purity, and fulfilment of the eco-friendly approach criterion. The dynamic development of materials engineering is the reason why it is necessary to obtain ZnO NMs with strictly defined properties. The present review aims to discuss the state of the art regarding the microwave synthesis of undoped and doped ZnO NMs. The first part of the review presents the properties of ZnO and new applications of ZnO NMs. Subsequently, the properties of microwave heating are discussed and compared with conventional heating and areas of application are presented. The final part of the paper presents reactants, parameters of processes, and the morphology of products, with a division of the microwave synthesis of ZnO NMs into three primary groups, namely hydrothermal, solvothermal, and hybrid methods.
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Affiliation(s)
- Jacek Wojnarowicz
- Institute of High Pressure Physics, Polish Academy of Sciences, Sokolowska 29/37, 01-142 Warsaw, Poland; (T.C.); (W.L.)
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