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Qiu Z, Lei Y, Lin X, Zhu J, Zeng R, Sa R, Tang D, Chen Q, Chen Y. A laser-induced zinc oxide/graphene photoelectrode for a photocurrent-polarity-switching photoelectrochemical biosensor with bipedal DNA walker amplification. J Mater Chem B 2024; 12:984-990. [PMID: 38193153 DOI: 10.1039/d3tb02742b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
A photocurrent-polarity-switching photoelectrochemical (PEC) biosensor was developed for the ultrasensitive detection of tobramycin (TOB) through bipedal DNA walker amplification with hemin-induced photocurrent-polarity-switching using a laser-induced zinc oxide/graphene (ZnO/LIG) photoelectrode. Specifically, the ZnO/LIG photoelectrode was synthesized in situ by a laser direct writing (LDW) technique. In the presence of TOB, it reacted with HP1 and HP2 and the DNA walker response was activated to form a stable hemin/G-quadruplex. Furthermore, hemin induced a polarity shift in the photocurrent signal. The developed analytical platform exhibited excellent photoelectron transport performance of ZnO/LIG, the signal amplification effect of the DNA walker strategy, and the photocurrent-polarity-switching ability of hemin. Therefore, it demonstrated satisfying photocurrent responses to the target TOB within the working range of 20 nM-1.0 μM at a low detection limit of 5.43 nM. The PEC platform exhibited good stability, reproducibility, sufficient sensitivity and high selectivity for complex experimental samples. Moreover, the photocurrent-polarity-switching PEC biosensor improved the anti-interference ability and avoided false positives or negatives.
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Affiliation(s)
- Zhenli Qiu
- Fujian Provincial University Engineering Research Center of Green Materials and Chemical Engineering, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, P. R. China.
- College of Environment & Safety Engineering, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Yufen Lei
- Fujian Provincial University Engineering Research Center of Green Materials and Chemical Engineering, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, P. R. China.
- College of Environment & Safety Engineering, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Xintong Lin
- Fujian Provincial University Engineering Research Center of Green Materials and Chemical Engineering, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, P. R. China.
- College of Environment & Safety Engineering, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Jinman Zhu
- Fujian Provincial University Engineering Research Center of Green Materials and Chemical Engineering, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, P. R. China.
- College of Environment & Safety Engineering, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Ruijin Zeng
- Key Laboratory of Analysis and Detection for Food Safety (MOE & Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Rongjian Sa
- Fujian Provincial University Engineering Research Center of Green Materials and Chemical Engineering, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, P. R. China.
| | - Dianping Tang
- Key Laboratory of Analysis and Detection for Food Safety (MOE & Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Qiang Chen
- Fujian Provincial University Engineering Research Center of Green Materials and Chemical Engineering, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, P. R. China.
| | - Yiting Chen
- Fujian Provincial University Engineering Research Center of Green Materials and Chemical Engineering, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, P. R. China.
- College of Environment & Safety Engineering, Fuzhou University, Fuzhou, 350108, P. R. China
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Zhu D, He P, Kong H, Yang G, Luan X, Wei G. Biomimetic graphene-supported ultrafine platinum nanowires for colorimetric and electrochemical detection of hydrogen peroxide. J Mater Chem B 2022; 10:9216-9225. [PMID: 36314985 DOI: 10.1039/d2tb02132c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The detection of hydrogen peroxide (H2O2) is of great significance in environmental monitoring, enzymatic reactions, and disease diagnosis. Here we present the peptide-mediated biomimetic synthesis of ultrafine platinum nanowires (PtNWs) on graphene oxide (GO) nanosheets for the formation of functional hybrids, which show high potential for the fabrication of colorimetric and electrochemical sensors for the detection of H2O2 with high performance. A multifunctional peptide with the sequence KIIIIKYWYAF was designed to create peptide nanofibers (PNFs) via a controllable self-assembly process, which serves as a bridge between GO nanosheets and PtNWs to form PtNWs-PNFs/GO hybrids. On this basis, a dual-mode sensor platform for both colorimetric and electrochemical sensing of H2O2 was fabricated successfully. The obtained results indicate that the synthesized PtNWs-PNFs/GO hybrids could catalyze the decomposition of H2O2 to generate ˙OH radicals with a significant current response, and the ˙OH radicals are capable of overoxidizing 3,3',5,5',-tetramethylbenzidine (TMB), producing a blue-colored species with a distinct color change for colorimetric sensing. In addition, due to its high catalytic activity, the fabricated PtNWs-PNFs/GO hybrid-based electrochemical sensor exhibits a wider linear detection range of 0.05 μM-15 mM and a low detection limit of 0.0206 μM, which can be applied to detect H2O2 with high selectivity and sensitivity. Our study provides a green and environmentally friendly synthetic strategy for the preparation of biomimetic materials from PtNWs, and the fabricated colorimetric/electrochemical dual-mode H2O2 sensor platform will have a great impact in bioanalysis, environmental monitoring, and biomedicine.
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Affiliation(s)
- Danzhu Zhu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China.
| | - Peng He
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China.
| | - Hao Kong
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China.
| | - Guozheng Yang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China.
| | - Xin Luan
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China.
| | - Gang Wei
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China. .,Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201, P. R. China
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Khattak Z, Sajid M, Javed M, Zeeshan Rizvi HM, Awan FS. Mass-Producible 2D Nanocomposite-Based Temperature-Independent All-Printed Relative Humidity Sensor. ACS OMEGA 2022; 7:16605-16615. [PMID: 35601310 PMCID: PMC9118384 DOI: 10.1021/acsomega.2c00850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 04/27/2022] [Indexed: 06/15/2023]
Abstract
Relative humidity sensors are widely studied under the categories of both environmental and biosensors owing to their vast reaching applications. The research on humidity sensors is mainly divided into two concentration areas including novel material development and novel device structure. Another approach focuses on the development of printed sensors with performance comparable to the sensors fabricated via conventional techniques. The major challenges in the research on relative humidity sensors include the range of detection, sensitivity (especially at lower %RH), transient response time, and dependence on temperature. Temperature dependence is one of the least studied parameters in relative humidity sensor development. In this work, relative humidity sensors were fabricated using all-printed approaches that are also compatible with mass production, resulting in low cost and easy development. Laser-induced graphene (LIG)-based printed electrodes were used as the transducers, while the 2D MoS2 and graphene nanocomposite was used as the active layer material with the built-in property of temperature independence. The exfoliation process of 2D MoS2 was based on wet grinding, while graphene for the active layer was obtained by scratching the graphene grown on the polyimide (PI) surface via laser ablation. The resulting sensors showed an excellent output response for a full range of 0%RH to 100%RH, having no dependence on the surrounding temperature, and excellent response and recovery times of 4 and 2 s, respectively. The developed sensors can be confidently employed for a wide range of humidity sensing applications where the temperature of the surrounding environment is not constant.
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Abstract
Zinc oxide (ZnO) is a wide bandgap semiconductor material that has been widely explored for countless applications, including in biosensing. Among its interesting properties, its remarkable photoluminescence (PL), which typically exhibits an intense signal at room temperature (RT), arises as an extremely appealing alternative transduction approach due to the high sensitivity of its surface properties, providing high sensitivity and selectivity to the sensors relying on luminescence output. Therefore, even though not widely explored, in recent years some studies have been devoted to the use of the PL features of ZnO as an optical transducer for detection and quantification of specific analytes. Hence, in the present paper, we revised the works that have been published in the last few years concerning the use of ZnO nanostructures as the transducer element in different types of PL-based biosensors, namely enzymatic and immunosensors, towards the detection of analytes relevant for health and environment, like antibiotics, glucose, bacteria, virus or even tumor biomarkers. A comprehensive discussion on the possible physical mechanisms that rule the optical sensing response is also provided, as well as a warning regarding the effect that the buffer solution may play on the sensing experiments, as it was seen that the use of phosphate-containing solutions significantly affects the stability of the ZnO nanostructures, which may conduct to misleading interpretations of the sensing results and unreliable conclusions.
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Mei H, Xie J, Li Z, Lou C, Lei G, Liu X, Zhang J. Rational design of ZnO@ZIF-8 nanoarrays for improved electrochemical detection of H2O2. CrystEngComm 2022. [DOI: 10.1039/d1ce01704g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Core–shell ZnO@ZIF-8 nanoarrays demonstrate remarkable electrochemical performance for detection of H2O2.
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Affiliation(s)
- Houshan Mei
- College of Physics, Center for Marine Observation and Communications, Qingdao University, Qingdao 266071, China
| | - Jiayue Xie
- College of Physics, Center for Marine Observation and Communications, Qingdao University, Qingdao 266071, China
| | - Zishuo Li
- College of Physics, Center for Marine Observation and Communications, Qingdao University, Qingdao 266071, China
| | - Chengming Lou
- College of Physics, Center for Marine Observation and Communications, Qingdao University, Qingdao 266071, China
| | - Guanglu Lei
- College of Physics, Center for Marine Observation and Communications, Qingdao University, Qingdao 266071, China
| | - Xianghong Liu
- College of Physics, Center for Marine Observation and Communications, Qingdao University, Qingdao 266071, China
| | - Jun Zhang
- College of Physics, Center for Marine Observation and Communications, Qingdao University, Qingdao 266071, China
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Filoni C, Shirzadi B, Menegazzo M, Martinelli E, Di Natale C, Li Bassi A, Magagnin L, Duò L, Bussetti G. Compared EC-AFM Analysis of Laser-Induced Graphene and Graphite Electrodes in Sulfuric Acid Electrolyte. Molecules 2021; 26:7333. [PMID: 34885914 PMCID: PMC8659228 DOI: 10.3390/molecules26237333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/17/2021] [Accepted: 11/29/2021] [Indexed: 11/19/2022] Open
Abstract
Flexible and economic sensor devices are the focus of increasing interest for their potential and wide applications in medicine, food analysis, pollution, water quality, etc. In these areas, the possibility of using stable, reproducible, and pocket devices can simplify the acquisition of data. Among recent prototypes, sensors based on laser-induced graphene (LIGE) on Kapton represent a feasible choice. In particular, LIGE devices are also exploited as electrodes for sensing in liquids. Despite a characterization with electrochemical (EC) methods in the literature, a closer comparison with traditional graphite electrodes is still missing. In this study, we combine atomic force microscopy with an EC cell (EC-AFM) to study, in situ, electrode oxidation reactions when LIGE or other graphite samples are used as anodes inside an acid electrolyte. This investigation shows the quality and performance of the LIGE electrode with respect to other samples. Finally, an ex situ Raman spectroscopy analysis allows a detailed chemical analysis of the employed electrodes.
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Affiliation(s)
- Claudia Filoni
- Department of Physics, Politecnico di Milano, p.za Leonardo da Vinci 32, I-20133 Milan, Italy; (B.S.); (M.M.); (L.D.); (G.B.)
| | - Bahram Shirzadi
- Department of Physics, Politecnico di Milano, p.za Leonardo da Vinci 32, I-20133 Milan, Italy; (B.S.); (M.M.); (L.D.); (G.B.)
| | - Marco Menegazzo
- Department of Physics, Politecnico di Milano, p.za Leonardo da Vinci 32, I-20133 Milan, Italy; (B.S.); (M.M.); (L.D.); (G.B.)
| | - Eugenio Martinelli
- Department of Electronic Engineering, University of Rome Tor Vergata, v. del Politecnico, I-00133 Rome, Italy; (E.M.); (C.D.N.)
| | - Corrado Di Natale
- Department of Electronic Engineering, University of Rome Tor Vergata, v. del Politecnico, I-00133 Rome, Italy; (E.M.); (C.D.N.)
| | - Andrea Li Bassi
- Department of Energy, Politecnico di Milano, v. Ponzio 34/3, I-20133 Milan, Italy;
| | - Luca Magagnin
- Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, v. Mancinelli 7, I-20131 Milan, Italy;
| | - Lamberto Duò
- Department of Physics, Politecnico di Milano, p.za Leonardo da Vinci 32, I-20133 Milan, Italy; (B.S.); (M.M.); (L.D.); (G.B.)
| | - Gianlorenzo Bussetti
- Department of Physics, Politecnico di Milano, p.za Leonardo da Vinci 32, I-20133 Milan, Italy; (B.S.); (M.M.); (L.D.); (G.B.)
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Santos NF, Rodrigues J, Pereira SO, Fernandes AJS, Monteiro T, Costa FM. Electrochemical and photoluminescence response of laser-induced graphene/electrodeposited ZnO composites. Sci Rep 2021; 11:17154. [PMID: 34433863 PMCID: PMC8387487 DOI: 10.1038/s41598-021-96305-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 08/02/2021] [Indexed: 02/07/2023] Open
Abstract
The inherent scalability, low production cost and mechanical flexibility of laser-induced graphene (LIG) combined with its high electrical conductivity, hierarchical porosity and large surface area are appealing characteristics for many applications. Still, other materials can be combined with LIG to provide added functionalities and enhanced performance. This work exploits the most adequate electrodeposition parameters to produce LIG/ZnO nanocomposites. Low-temperature pulsed electrodeposition allowed the conformal and controlled deposition of ZnO rods deep inside the LIG pores whilst maintaining its inherent porosity, which constitute fundamental advances regarding other methods for LIG/ZnO composite production. Compared to bare LIG, the composites more than doubled electrode capacitance up to 1.41 mF cm-2 in 1 M KCl, while maintaining long-term cycle stability, low ohmic losses and swift electron transfer. The composites also display a luminescence band peaked at the orange/red spectral region, with the main excitation maxima at ~ 3.33 eV matching the expected for the ZnO bandgap at room temperature. A pronounced sub-bandgap tail of states with an onset absorption near 3.07 eV indicates a high amount of defect states, namely surface-related defects. This work shows that these environmentally sustainable multifunctional nanocomposites are valid alternatives for supercapacitors, electrochemical/optical biosensors and photocatalytic/photoelectrochemical devices.
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Affiliation(s)
- N F Santos
- I3N, Department of Physics, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal.
| | - J Rodrigues
- I3N, Department of Physics, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - S O Pereira
- I3N, Department of Physics, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - A J S Fernandes
- I3N, Department of Physics, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - T Monteiro
- I3N, Department of Physics, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - F M Costa
- I3N, Department of Physics, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
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