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Zhao S, Yue Z, Zhu D, Harberts J, Blick RH, Zierold R, Lisdat F, Parak WJ. Quantum Dot/TiO 2 Nanocomposite-Based Photoelectrochemical Sensor for Enhanced H 2O 2 Detection Applied for Cell Monitoring and Visualization. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401703. [PMID: 39210661 DOI: 10.1002/smll.202401703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2024] [Revised: 08/08/2024] [Indexed: 09/04/2024]
Abstract
This work exploits the possibility of using CdSe/ZnS quantum dot (QD)-electrodes to monitor the metabolism of living cells based on photoelectrochemical (PEC) measurements. To realize that, the PEC setup is improved with respect to an enhanced photocurrent signal, better stability, and an increased signal-to-noise ratio, but also for a better biocompatibility of the sensor surface on which cells have been grown. To achieve this, a QD-TiO2 heterojunction is introduced with the help of atomic layer deposition (ALD). The heterojunction reduces the charge carrier recombination inside the semiconductor nanoparticles and improves the drift behavior. The PEC performance is carefully analyzed by adjusting the TiO2 thickness and combining this strategy with multilayer immobilizations of QDs. The optimal thickness of this coating is ≈5 nm; here, photocurrent generation can be enhanced significantly (e.g., for a single QD layer electrode by more than one order of magnitude at 0 V vs Ag/AgCl). The resulting optimized electrode is used for hydrogen peroxide (H2O2) sensing with a good sensitivity down to µmolar concentrations, reusability, stability, response rate, and repeatability. Finally, the sensing system is applied to monitor the activity of cells directly grown on top of the electrode surface.
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Grants
- F2021203102 Hebei Natural Science Foundation, Science Research Project of Hebei Education Department, S&T Program of Hebei
- C20210324 Hebei Natural Science Foundation, Science Research Project of Hebei Education Department, S&T Program of Hebei
- F2023203085 Hebei Natural Science Foundation, Science Research Project of Hebei Education Department, S&T Program of Hebei
- F2024203033 Hebei Natural Science Foundation, Science Research Project of Hebei Education Department, S&T Program of Hebei
- ZD2022108 Hebei Natural Science Foundation, Science Research Project of Hebei Education Department, S&T Program of Hebei
- 236Z1705G Hebei Natural Science Foundation, Science Research Project of Hebei Education Department, S&T Program of Hebei
- China Scholarship Council
- Deutsche Forschungsgemeinschaft
- EXC 2056 Cluster of Excellence "Advanced Imaging of Matter"
- 390715994 Cluster of Excellence "Advanced Imaging of Matter"
- 192346071 the SFB986 "Tailor-Made Multi-Scale Materials Systems"
- 61871240 National Natural Science Foundation of China
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Affiliation(s)
- Shuang Zhao
- Fachbereich Physik, CHyN, Universität Hamburg, Hamburg, 22761, Germany
- Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, School of Information Science and Engineering, Yanshan University, Qinhuangdao, 066004, China
| | - Zhao Yue
- Department of Microelectronics, Nankai University, Tianjin, 30071, China
| | - Dingcheng Zhu
- Fachbereich Physik, CHyN, Universität Hamburg, Hamburg, 22761, Germany
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China
| | - Jann Harberts
- Fachbereich Physik, CHyN, Universität Hamburg, Hamburg, 22761, Germany
- Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, 3052, VIC, Australia
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, 151 Wellington Road, Clayton, 3168, VIC, Australia
| | - Robert H Blick
- Fachbereich Physik, CHyN, Universität Hamburg, Hamburg, 22761, Germany
| | - Robert Zierold
- Fachbereich Physik, CHyN, Universität Hamburg, Hamburg, 22761, Germany
| | - Fred Lisdat
- Biosystems Technology, Institute of Life Sciences and Biomedical Technologies, Technical University of Applied Sciences Wildau, Wildau, 15745, Germany
| | - Wolfgang J Parak
- Fachbereich Physik, CHyN, Universität Hamburg, Hamburg, 22761, Germany
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Chen Y, Sun M. Plexcitonics: plasmon-exciton coupling for enhancing spectroscopy, optical chirality, and nonlinearity. NANOSCALE 2023. [PMID: 37377142 DOI: 10.1039/d3nr01388j] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
Plexcitonics is a rapidly developing interdisciplinary field that holds immense potential for the creation of innovative optical technologies and devices. This field focuses on investigating the interactions between plasmons and excitons in hybrid systems. In this review, we provide an overview of the fundamental principles of plasmonics and plexcitonics and discuss the latest advancements in plexcitonics. Specifically, we highlight the ability to manipulate plasmon-exciton interactions, the emerging field of tip-enhanced spectroscopy, and advancements in optical chirality and nonlinearity. These recent developments have spurred further research in the field of plexcitonics and offer inspiration for the design of advanced materials and devices with enhanced optical properties and functionalities.
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Affiliation(s)
- Yichuan Chen
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, P. R. China.
| | - Mengtao Sun
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, P. R. China.
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Ghodake GS, Kim DY, Shinde SK, Dubal DP, Yadav HM, Magotra VK. Impact of Annealing Temperature on the Morphological, Optical and Photoelectrochemical Properties of Cauliflower-like CdSe 0.6Te 0.4 Photoelectrodes; Enhanced Solar Cell Performance. Int J Mol Sci 2021; 22:11610. [PMID: 34769039 PMCID: PMC8583999 DOI: 10.3390/ijms222111610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 10/22/2021] [Accepted: 10/25/2021] [Indexed: 11/17/2022] Open
Abstract
We are reporting on the impact of air annealing temperatures on the physicochemical properties of electrochemically synthesized cadmium selenium telluride (CdSe0.6Te0.4) samples for their application in a photoelectrochemical (PEC) solar cell. The CdSe0.6Te0.4 samples were characterized with several sophisticated techniques to understand their characteristic properties. The XRD results presented the pure phase formation of the ternary CdSe0.6Te0.4 nanocompound with a hexagonal crystal structure, indicating that the annealing temperature influences the XRD peak intensity. The XPS study confirmed the existence of Cd, Se, and Te elements, indicating the formation of ternary CdSe0.6Te0.4 compounds. The FE-SEM results showed that the morphological engineering of the CdSe0.6Te0.4 samples can be achieved simply by changing the annealing temperatures from 300 to 400 °C with intervals of 50 °C. The efficiencies (ƞ) of the CdSe0.6Te0.4 photoelectrodes were found to be 2.0% for the non-annealed and 3.1, 3.6, and 2.5% for the annealed at 300, 350, and 400 °C, respectively. Most interestingly, the PEC cell analysis indicated that the annealing temperatures played an important role in boosting the performance of the photoelectrochemical properties of the solar cells.
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Affiliation(s)
- Gajanan S. Ghodake
- Department of Biological and Environmental Science, College of Life Science and Biotechnology, Dongguk University, 32 Dongguk-ro, Biomedical Campus, Ilsandong-gu, Siksa-dong, Goyang-si 10326, Korea; (G.S.G.); (D.-Y.K.); (H.M.Y.)
| | - Dae-Young Kim
- Department of Biological and Environmental Science, College of Life Science and Biotechnology, Dongguk University, 32 Dongguk-ro, Biomedical Campus, Ilsandong-gu, Siksa-dong, Goyang-si 10326, Korea; (G.S.G.); (D.-Y.K.); (H.M.Y.)
| | - Surendra K. Shinde
- Department of Biological and Environmental Science, College of Life Science and Biotechnology, Dongguk University, 32 Dongguk-ro, Biomedical Campus, Ilsandong-gu, Siksa-dong, Goyang-si 10326, Korea; (G.S.G.); (D.-Y.K.); (H.M.Y.)
| | - Deepak P. Dubal
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD 4001, Australia;
| | - Hemraj M. Yadav
- Department of Biological and Environmental Science, College of Life Science and Biotechnology, Dongguk University, 32 Dongguk-ro, Biomedical Campus, Ilsandong-gu, Siksa-dong, Goyang-si 10326, Korea; (G.S.G.); (D.-Y.K.); (H.M.Y.)
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Ummer RP, Perumbilavil S, Jose J, Thomas S, Gopinath P, Kalarikkal N. Exploring the optical limiting, photocatalytic and antibacterial properties of the BiFeO 3-NaNbO 3 nanocomposite system. RSC Adv 2021; 11:8450-8458. [PMID: 35423392 PMCID: PMC8695222 DOI: 10.1039/d0ra09776d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 02/04/2021] [Indexed: 01/06/2023] Open
Abstract
Thin films of BiFeO3-NaNbO3 composites were fabricated in a PMMA matrix. XRD and HRTEM were used for structural investigations. The grain size and surface morphology of samples were analysed through HRTEM images. The self-cleaning property of any material accelerates its industrial applications. Hence, along with the optical limiting performance, the photocatalytic and antibacterial activity of BiFeO3-NaNbO3 composite samples were also studied. BiFeO3-NaNbO3 films fabricated in the PMMA matrix exhibit strong optical nonlinearity when excited by 5 ns laser pulses at 532 nm. The origin and magnitude of the observed optical nonlinearity were explained on the basis of the weak absorption saturation and strong excited state absorption. The photocatalytic performance of samples was analysed by dye degradation method using Methyl Orange dye. The dye degradation rate in the presence of the catalyst is heeded in a particular time interval, which exhibits the photocatalytic performance of the samples. The destruction of microbial organisms that are in contact with the material was contemplated, which could prove its antibacterial activity. The effect of the particle size on the photocatalytic activity was also investigated.
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Affiliation(s)
- Rehana P Ummer
- International School of Photonics, Cochin University of Science and Technology Cochin 682022 India
- Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology Cochin 682022 India
| | - Sreekanth Perumbilavil
- Department of Applied Physics, Aalto University School of Science P.O. Box 15100 FI-00076 Aalto Finland
| | - Jiya Jose
- Department of Biotechnology, Cochin University of Science and Technology Cochin 682022 India
| | - Sabu Thomas
- International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University Kottayam Kerala 686560 India
| | - Pramod Gopinath
- International School of Photonics, Cochin University of Science and Technology Cochin 682022 India
- Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology Cochin 682022 India
| | - Nandakumar Kalarikkal
- School of Pure and Applied Physics, Mahatma Gandhi University Kottayam Kerala 686560 India
- International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University Kottayam Kerala 686560 India
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