Article
Chemistry, Analytical
Elizaveta P. Simonenko, Ilya A. Nagornov, Artem S. Mokrushin, Aleksey A. Averin, Yulia M. Gorban, Tatiana L. Simonenko, Nikolay P. Simonenko, Nikolay T. Kuznetsov
Summary: Currently, MXenes, a new class of 2D nanomaterials, have attracted great scientific and applied interest due to their broad application prospects, including their potential as effective doping components for MOS sensor receptor materials. In this study, we investigated the influence of adding 1-5% multilayer two-dimensional titanium carbide Ti2CTx, obtained through etching Ti2AlC with NaF solution in hydrochloric acid, on the gas-sensitive properties of nanocrystalline zinc oxide synthesized by atmospheric pressure solvothermal synthesis. The results showed that all the materials obtained exhibited high sensitivity and selectivity towards 4-20 ppm NO2 at a detection temperature of 200 degrees C. The sample with the highest Ti2CTx dopant content showed the best selectivity towards NO2, and an increase in MXene content led to increased responses to nitrogen dioxide, possibly due to factors such as an increase in specific surface area, the presence of MXene surface functional groups, and the formation of Schottky barrier at the component interface.
Article
Chemistry, Analytical
Jinniu Zhang, Gang Li, Jia Liu, Yumeng Liu, Ruyi Yang, Lu Li, Qiyi Zhao, Jianzhi Gao, Gangqiang Zhu, Benpeng Zhu, Hongbing Lu
Summary: Researchers fabricated porous reduced graphene oxide (rGO)-ZnO composite nanofibers by electrospinning rGO and zeolitic imidazolate framework-8 (ZIF-8) precursors. The resulting materials exhibited high-density and large-size mesopores, which were attributed to the integration of MOFs and NFs. The rGO-ZnO NFs showed improved sensing properties compared to pure ZnO nanocages, including higher isopropanol sensing responses and faster response/recovery times. This study presents a novel approach for constructing MOF-derived porous rGO-metal oxide composite NFs with high-performance sensing materials.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Materials Science, Ceramics
Jintao Zhang, Xiaohua Jia, Tiantian Liu, Yong Li, Dan Shao, Lei Feng, Haojie Song
Summary: In this study, a cactus-like graphene oxide (GO)/zinc oxide (ZnO) gas sensor was developed for the fast, selective, and reliable detection of acetone. The unique three-dimensional structure of the sensor, inspired by the cactus, provided more channels and active sites for acetone detection. The sensor exhibited improved response values, fast response/recovery times, and excellent selectivity for acetone.
CERAMICS INTERNATIONAL
(2023)
Review
Chemistry, Analytical
Busra Aksoy, Evren Sel, Ebru Kuyumcu Savan, Burhan Ates, Suleyman Koytepe
Summary: Gas sensors play a crucial role in assessing environmental impacts and monitoring natural gas, with the use of polymeric membranes being a common practice to enhance sensitivity and reduce determination time. Polyurethane membranes have shown promise in developing next-generation gas sensors based on membrane diffusion, enabling accurate, sensitive, precise, and fast measurements of various gases. Conductive additives or film structures play a significant role in the detection of gas structures by altering electrical properties as gas molecules pass through, contributing to the advancement of gas detection technology.
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Amanda Akemy Komorizono, Bruno Sanches de Lima, Valmor Roberto Mastelaro
Summary: Gas sensors based on graphene nanocomposites have been widely investigated for the detection of different gases. However, there is limited research on using graphene-based materials for ozone detection due to the permanent oxidation reaction between ozone and carbon atoms in the graphene structure, which leads to material degradation and poor sensing stability. This study presents new techniques for using rGO-ZnO nanocomposites for ozone detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Nanoscience & Nanotechnology
Junfeng Chao, Haijun Yu, Ke Zhang, Ying Zhou, Deshuo Meng, Yeguo Sun
Summary: Zinc oxide hollow microspheres (ZnO HMPs) were synthesized using a carbon microsphere-assisted soaking route and annealed process. The as-synthesized HMP sensor exhibited good response to ethanolamine. Loading Au nanoparticles improved the sensing performances of Au-modified zinc oxide (Au/ZnO) products.
ACS APPLIED NANO MATERIALS
(2023)
Article
Environmental Sciences
Jesse Nii Okai Amu-Darko, Shahid Hussain, Xiangzhao Zhang, Asma A. Alothman, Mohamed Ouladsmane, M. Tariq Nazir, Guanjun Qiao, Guiwu Liu
Summary: Through thermal treatment, a mixed heterostructures In2O3/ZnO hollow nanocages were prepared, which showed exceptional sensitivity and selectivity to hydrogen sulfide gas, greatly improving the gas sensing performance.
Article
Chemistry, Applied
Pamela F. M. Pereira, Paulo H. de Sousa Picciani, Veronica Calado, Renata Tonon
Summary: A novel gelatin-ZnO-anthocyanin ternary nanocomposite film was proposed for meat quality monitoring, showing a good response and selectivity to ammonia vapor. The results suggest potential applications of the developed film in meat quality monitoring.
Article
Environmental Sciences
Shahid Hussain, Jesse Nii Okai Amu-Darko, Mingsong Wang, Asma A. Alothman, Mohamed Ouladsmane, Samar A. Aldossari, Muhammad Shahzeb Khan, Guanjun Qiao, Guiwu Liu
Summary: Considering the significant risk of H2S gas to human life, research on H2S gas sensors has gained considerable interest. This study presents the fabrication of CuO/ZnO multifaceted nanostructures through heat treatment of Cu2+/ZIF-8 impregnation precursors, and evaluates their microstructure and gas sensing characteristics using various characterization techniques. The hollow CuO/ZnO nanostructures demonstrated high gas response, quick response and recovery times, low detection limit, good humidity resistance, and high selectivity towards H2S gas, which can be attributed to their porous hollow nanostructures, p-CuO/n-ZnO heterojunctions, and the spillover effect between CuO and H2S.
Article
Engineering, Electrical & Electronic
Suraj Kumar Lalwani, Ajit Debnath, Vyom kumar Gupta, Sunny
Summary: In this study, SnO2-ZnO composite solutions with different viscosity were synthesized and the thickness of electrospun nanofibers was optimized to achieve uniformly distributed fibers without bead-like structures. The nanofibers of 75 to 250 nm were successfully deposited on Interdigitated gold electrode (IDGE) for ethanol sensing. The effect of fiber width on the sensing properties was investigated to determine the optimum fiber thickness. The SnO2-ZnO nanofibers-based sensor, with an average thickness of 106.2 nm, showed a response of 41.66% towards 0.5 ppm ethanol with a fast response time of 11 s. The sensor exhibited significant selectivity towards ethanol compared to other volatile organic compounds (VOCs). The crystallographic structure, valence states analysis, and surface morphology were characterized using XRD, XPS, and FESEM. The formation of n-n heterojunction was found to enhance the sensor response, and the ethanol sensing mechanism based on redox reaction at the surface and heterojunction interface was presented.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Analytical
Kamran Syed, Niksa Krstulovic, Juan Casanova-Chafer, Eduard Llobet, Frank Guell, Paulina R. Martinez-Alanis, Marijan Marcius, Ekaterina Shagieva, Davor Ristic, Hrvoje Gebavi, Nikola Baran, Mile Ivanda
Summary: ZnO films were prepared using pulsed laser deposition with different background atmospheres and their gas-sensing properties and microstructure characteristics were investigated. The films grown in an argon atmosphere showed a highly textured hexagonal crystalline structure with the c-axis perpendicular to the substrate plane. The vacuum-grown films exhibited better growth in the (100) plane. Raman and PL spectroscopy confirmed the presence of defects in both types of films. Gas-sensing experiments revealed that the vacuum-grown films had a higher response to nitrogen dioxide (NO2) at ppb levels compared to the argon-grown films, which was attributed to differences in crystallinity, microstructure, and defect type.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Nanoscience & Nanotechnology
Oleg Lupan, David Santos-Carballal, Nicolae Magariu, Abhishek Kumar Mishra, Nicolai Ababii, Helge Krueger, Niklas Wolff, Alexander Vahl, Mani Teja Bodduluri, Niklas Kohlmann, Lorenz Kienle, Rainer Adelung, Nora H. de Leeuw, Sandra Hansen
Summary: This research demonstrates the sensitivity of columnar Al2O3/ZnO heterolayer-based sensors to common VOCs and achieves selectivity tuning by changing the thickness of the exposed Al2O3 layer. The findings are highly important for the development of 2-propanol sensors and understanding the effect of heterojunction and top nanolayer thickness on gas response.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
P. P. Ortega, C. C. Silva, M. A. Ramirez, G. Biasotto, C. R. Foschini, A. Z. Simoes
Summary: ZnO nanostructures synthesized via the microwave-assisted hydrothermal method show superior photocatalytic and gas sensing performances, highlighting their potential for environmental applications such as water purification and air monitoring.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Electrical & Electronic
Mariana Chelu, Paul Chesler, Mihai Anastasescu, Cristian Hornoiu, Daiana Mitrea, Irina Atkinson, Costin Brasoveanu, Carmen Moldovan, Gabriel Craciun, Marin Gheorghe, Mariuca Gartner
Summary: With the rapid development of urbanization and industry, the emissions of volatile organic compounds (VOCs) in the atmosphere have increased dramatically, causing a significant impact on human health. Therefore, the development of new and cheap detection devices for VOCs has become a topic of high interest. In this study, ZnO/NiO heterostructures were synthesized for the detection of formaldehyde, which showed promising performance at room temperature.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Ming-Hsien Li, Lin-Sin Lu, Chang-Hsueh Lee, Ding-Yuan Tsai, Jia-Jie Jhang, Deng-Yi Wang, Yung-Sen Lin, Yung-Hui Li, Hsiang Chen
Summary: In this study, ZnO nanorods (NRs) were grown on a ZnO seed layer incorporating carbon nanotubes (CNTs). The presence of CNTs in the seed layer resulted in enhanced oxygen defect-related chemical bindings and defect-related photoluminescence (PL) intensity. The improved oxygen defects in the ZnO NRs on CNT-incorporated seed layer led to enhanced light/gas dual-sensing behaviors. This study demonstrates the promise of light/gas dual-sensing chips with ZnO NRs on CNT-incorporated seed layer for UV light and gas detection.
RESULTS IN PHYSICS
(2022)
Article
Materials Science, Ceramics
Anas A. Ahmed, Talal F. Qahtan, M. R. Hashim, Ahlaam T. Nomaan, Naif H. Al-Hardan, Marzaini Rashid
Summary: A hybrid self-powered sensor that converts incident light energy and light-induced temperature fluctuation into electrical signals is reported. This device exhibits high photo-to-dark current ratio and conspicuous light-induced pyroelectric voltage signals. The application of the photovoltaic-pyroelectric coupling effect allows the device to track high-frequency optical pulses.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Electrical & Electronic
Manahil E. E. Mofdal, Nabeel Z. Al-Hazeem, Naser M. Ahmed, Naif H. Al-Hardan
Summary: Polypyrrole-polyethylene oxide (PPy/PEO) nanofiber-like structures were successfully synthesized and applied as a hydrogen gas sensor at room temperature. The testing results showed a rapid response of the nanofibers to the target gas with low response time.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Ensaf Mohammed Al-Khalqi, Muhammad Azmi Abdul Hamid, Naif H. Al-Hardan, Lim Kar Keng, Azman Jalar
Summary: In this study, EMIS sensors based on ZnO nanorods doped with different molar ratios of Mg/Zn were successfully demonstrated for calcium ion detection. The results showed that the sensors doped with 3% Mg exhibited high sensitivity and linearity, as well as good stability and selectivity.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Review
Materials Science, Multidisciplinary
Muheeb Ahmad Alkhalayfeh, Azlan Abdul Aziz, Mohd Zamir Pakhuruddin, Khadijah Mohammedsaleh M. Katubi, Neda Ahmadi
Summary: Solar energy technologies provide effective solutions for utilizing IoT-based applications, especially smart devices. Organic photovoltaics made from pi-conjugated carbon-based semiconductors have great potential for indoor applications but require enhancements in dim light absorption and bandgap material utilization. Additionally, the plasmonic effect of metallic nanoparticles is highlighted for improving the performance of OPVs.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2022)
Article
Chemistry, Physical
Mohammed Ali Dheyab, Azlan Abdul Aziz, Mahmood S. Jameel, Nazila Oladzadabbasabadi
Summary: Nanotechnology, particularly the use of tin oxide nanoparticles (SnO(2)NPs), has emerged as a promising research area with broad applications. This review focuses on reviewing various synthetic routes for SnO(2)NPs preparation and highlights their physicochemical properties and potential applications in nanoscience.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Physical
Mahmood S. Jameel, Azlan Abdul Aziz, Mohammed Ali Dheyab, Pegah Moradi Khaniabadi, Alyaa Abdulhussein Kareem, Mohammad Alrosan, Abdullah Taha Ali, Muwafaq Ayesh Rabeea, Baharak Mehrdel
Summary: This study focuses on the synthesis of uniformly cubic-shaped silver nanoparticles using ultrasonic assist. Phenolic compounds from edible mushrooms were used for mycosynthesis of cubic AgNPs with antibacterial properties. The results showed that the synthesized AgNPs had a uniform cubic shape and small size distribution, and exhibited enhanced antibacterial activity.
SURFACES AND INTERFACES
(2022)
Article
Engineering, Electrical & Electronic
Ensaf Mohammed Al-Khalqi, Muhammad Azmi Abdul Hamid, Naif H. Al-Hardan, Lim Kar Keng, Azman Jalar
Summary: An electrolyte-insulator-semiconductor (EIS) chemical sensor based on vertically aligned Mg-doped ZnO nanorod is fabricated for detecting different organic solutions at room temperature. The Mg-doped ZnO nanorod exhibits good crystal quality and selectivity, with the highest response to 2-methoxyethanol.
IEEE SENSORS JOURNAL
(2022)
Review
Biochemistry & Molecular Biology
Mohammed Ali Dheyab, Azlan Abdul Aziz, Pegah Moradi Khaniabadi, Mahmood S. Jameel, Nazila Oladzadabbasabadi, Selwan Abduljabbar Mohammed, Raja Saleh Abdullah, Baharak Mehrdel
Summary: Gold nanoparticles (AuNPs) are increasingly popular as drug carriers due to their unique properties. This review focuses on the research accomplishments and opportunities in this field, describing the developments in the use of monodisperse AuNPs for diagnostic and therapeutic applications. The possible development of functionalized monodisperse AuNPs for theranostic applications is also considered.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Acoustics
Farhank Saber Braim, Nik Noor Ashikin Nik Ab Razak, Azlan Abdul Aziz, Layla Qasim Ismael, Bashiru Kayode Sodipo
Summary: In this study, the effect of ultrasonic irradiation on the properties of chitosan-coated superparamagnetic iron oxide nanoparticles (CS-SPIONs) was investigated. The results showed that increasing the sonication period and decreasing the acoustic power led to a decrease in crystallinity and elemental proportions, as well as an increase in the Zeta potential. The synthesized CS-SPIONs were found to be non-toxic and biocompatible with cells.
ULTRASONICS SONOCHEMISTRY
(2022)
Article
Chemistry, Physical
Muheeb Ahmad Alkhalayfeh, Azlan Abdul Aziz, Mohd Zamir Pakhuruddin, Khadijah Mohammedsaleh M. Katubi
Summary: This study investigates the effects of embedding plasmonic Au@Ag nanoparticles (NPs) in the buffer and active layers of polymer solar cells. The results show that optimizing the volume ratio of the embedded NPs can significantly improve the energy conversion efficiency of the devices.
Article
Materials Science, Ceramics
Farhank Saber Braim, Nik Noor Ashikin Nik Ab Razak, Azlan Abdul Aziz, Mohammed Ali Dheyab, Layla Qasim Ismael
Summary: This study examined the use of Sumac plant extract as a green stabilizer for superparamagnetic magnetite nanoparticles (SPMNPs). The extract solution was used as a green stabilizer to fabricate aqueous colloidal suspension of SPMNPs. The properties of the synthesized nanoparticles were characterized and compared to uncoated SPMNPs. The results showed that the Sumac extract significantly improved the stability and magnetic properties of the coated SPMNPs, making them suitable for various biomedical applications.
CERAMICS INTERNATIONAL
(2023)
Review
Materials Science, Multidisciplinary
Naif H. Al-Hardan, Mohd Firdaus-Raih, Muhammad Azmi Abdul Hamid, Azman Jalar
Summary: The global spread of SARS-CoV-2 infections has created a new challenge for controlling the virus. Rapid and accurate detection of infections is crucial for isolating individuals and providing early treatments. This review presents the use of electrolyte-gated field effect transistor-based biosensors for virus detection, including SARS-CoV-2. The types of bioreceptors used for virus detection and their applications for COVID-19 are discussed in detail.
CRITICAL REVIEWS IN SOLID STATE AND MATERIALS SCIENCES
(2023)
Article
Physics, Applied
Muna E. Raypah, Naser M. Ahmed, Naif H. Al-Hardan, Munirah A. Almessiere
Summary: In this study, a novel seedless and surfactant-free CBD method at low temperature was used to fabricate flower-shaped ZnO nanostructures (FZONSs) on glass and p-type silicon substrates for the first time. The structural properties of FZONSs were examined and showed three-dimensional flower-shaped nanomorphology. The grown FZONSs may have potential in various applications including advanced catalysts, sensing devices, and solar cells.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2023)
Article
Biochemistry & Molecular Biology
Mohammed Ali Dheyab, Azlan Abdul Aziz, Nazila Oladzadabbasabadi, Alyaa Alsaedi, Farhank Saber Braim, Mahmood S. Jameel, Asmeit Ramizy, Mohammad Alrosan, Ali Madi Almajwal
Summary: This study investigates the influence of synthetic methods on the aggregation stability and antibacterial activity of gold nanoparticles against Staphylococcus aureus. The sonochemical method produces monodispersed spherical gold nanoparticles with excellent stability and strong antibacterial activity, which is significant for the development of new antibacterial agents and water purification processes.
Article
Acoustics
Farhank Saber Braim, Nik Noor Ashikin Nik Ab Razak, Azlan Abdul Aziz, Mohammed Ali Dheyab, Layla Qasim Ismael
Summary: This study utilized ultrasound to rapidly modify iron oxide nanoparticles (Fe3O4 NPs) by incorporating bismuth nanoparticles (Bi NPs) on their surface, resulting in Fe3O4@Bi composite NPs. The optimized preparation parameters were determined using response surface methodology, and the stability and biocompatibility of Fe3O4@Bi NPs were improved. The sonochemical approach efficiently produced an extremely stable, homogeneous, and biocompatible Fe3O4@Bi NPs with multifunctional potential.
ULTRASONICS SONOCHEMISTRY
(2023)
