Article
Nanoscience & Nanotechnology
Eric Hofferber, Jakob Meier, Nicolas Herrera, Joseph Stapleton, Chris Calkins, Nicole Iverson
Summary: High resolution, rapid, and precise detection of biological analytes related to disease and infection is currently the focus of many researchers. In this study, the first successful detection of single walled carbon nanotube-based sensor signals in a large mammal model is demonstrated, laying an important foundation for the future application of SWNT-based sensors in clinical diagnostics.
NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE
(2022)
Review
Chemistry, Analytical
Kohji Mitsubayashi, Koji Toma, Kenta Iitani, Takahiro Arakawa
Summary: This review discusses the recent advances in biosensors and bioimaging techniques for gas-phase biochemical molecules. It covers the use of various biorecognition elements and the combination with optical, electrochemical, and acoustic wave transducers. One notable advantage of biosensors is their resistance to humidity, allowing for the measurement of volatile biochemicals in humid environments. The review also explores the use of imaging technologies to capture the spatiotemporal distribution of volatile biochemicals and their applications in high-precision monitoring.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Jingfeng Weng, Junzhe Zhang, Chunyu Zhang, Jin Lv, Jinhui Liu, Chengqian Zhou, Jun Yuan, Min Wang, Dongqing Xu, Yun Zhong, Wenli Chen
Summary: In this study, a PEI/CNT-COOH gas sensor was designed to diagnose citrus Huanglongbing by detecting VOCs. Compared with conventional methods, this sensor has higher accuracy and portability.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Environmental Sciences
Roghaieh Holghoomi, Siavash Hosseini Sarghein, Jalil Khara, Bahman Hosseini, Abbas Rahdar, George Z. Kyzas
Summary: The aim of this research was to study the effect of different concentrations of functionalized multi-walled carbon nanotubes on the phenol and flavonoid content, antioxidant capacity, H2O2 content, reactive oxygen species detection, antioxidant enzyme activity, and volatile compound concentration of basil. The highest content of total phenol, flavonoid, anthocyanin, antioxidant capacity, and hydrogen peroxide were observed in the 200 mg/l functionalized carbon nanotube treatment. The highest percentage of certain compounds was observed at 150 mg/l and 100 mg/l of functionalized carbon nanotube. Overall, the use of functionalized carbon nanotubes as a stimulant increased the antioxidant capacity and secondary metabolite content of basil.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Nanoscience & Nanotechnology
Zhijun Chen, Yutao Cui, Lirong Liang, Hanfu Wang, Wei Xu, Qichun Zhang, Guangming Chen
Summary: This study prepares a flexible composite film by covalently bonding single-walled carbon nanotubes (SWCNTs) with porous metal-organic frameworks (MOFs), demonstrating good flexibility and p-type thermoelectric characteristics. Furthermore, a flexible thermoelectric device connected by multiple films in series generates high open-circuit voltage and maximum power.
MATERIALS TODAY NANO
(2022)
Article
Chemistry, Analytical
Ory Wiesel, Sook-Whan Sung, Amit Katz, Raya Leibowitz, Jair Bar, Iris Kamer, Itay Berger, Inbal Nir-Ziv, Michal Mark Danieli
Summary: Lung cancer is the main cause of cancer-related deaths worldwide. The BSP urine test, using trained rats as biosensors, shows high accuracy in recognizing lung cancer VOCs. It is safe, rapid, objective, and repeatable, and has the potential to increase detection rates and curability rates with lower healthcare expenditure.
Article
Multidisciplinary Sciences
Dominique Grandjean, Caroline Elie, Capucine Gallet, Clotilde Julien, Vinciane Roger, Loic Desquilbet, Guillaume Alvergnat, Severine Delarue, Audrey Gabassi, Marine Minier, Laure Choupeaux, Solen Kerneis, Constance Delaugerre, Jerome Le Goff, Jean-Marc Treluyer
Summary: The study evaluates the diagnostic accuracy of canine olfaction in non-invasive detection of SARS-CoV-2 infection. The results show that canine detection has a high sensitivity and can be used as an alternative method in mass screening.
Article
Chemistry, Analytical
Mostafa Shooshtari, Alireza Salehi
Summary: This paper presents a modification to carbon nanotubes (CNTs) to improve the sensitivity to volatile organic compounds (VOCs) and enhance the stability of CNT sensors. By growing titanium dioxide nanowires (TiO2-NW) on the surface of CNTs, the sensors show increased sensitivity and reduced response time. Using virtual arrays of an electronic nose (E-nose), new features are extracted from the data and classified using support vector machine (SVM) algorithms. The paper achieves high accuracy in classifying different VOC gases.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Yangyang Zhou, Weiwei Chang, Hezhen Liu, Yindian Wang, Xinluo Zhao, Hongxia Chen
Summary: This study investigates the potential of single-walled carbon nanowires (SWCNWs) to improve the performance of surface plasmon resonance (SPR) sensing and achieves highly sensitive, real-time, rapid, and specific label-free detection of exosomal PD-L1 (ExoPD-L1).
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Mathematics, Interdisciplinary Applications
Zhen Wang, Weipeng Hu
Summary: This paper investigates the resonance behavior of carbon nanotube sensors under various perturbations, exploring the dynamic stability and complex behavior of nonlinear systems in nanotube devices. Theoretical analysis and numerical simulations are used to verify the research results.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Chemistry, Physical
Chenmaya Xia, Daqi Zhang, Henan Li, Sheng Li, Haoming Liu, Li Ding, Xiyan Liu, Min Lyu, Ruoming Li, Juan Yang, Yan Li
Summary: SWNTs can be used to construct reusable SERS substrates with single molecule sensitivity and preservation of intrinsic properties, utilizing polyhedral gold nanocrystals to create effective hot spots. Using SWNTs to build SERS substrates may become a powerful strategy in various single molecule studies.
Review
Chemistry, Multidisciplinary
Marianna V. V. Kharlamova, Christian Kramberger
Summary: This paper explores the growth mechanism, structure, growth processes, growth kinetics, and optical, vibronic and electronic properties of metallocene-filled single-walled carbon nanotubes (SWCNTs). The procedures used to fill the nanotubes are described. The doping effects on metallicity-mixed and sorted SWCNTs filled with metallocenes are investigated through various spectroscopy techniques. The modification of the electronic properties of filled SWCNTs and the applications of metallocene-filled SWCNTs in various fields are discussed.
Review
Chemistry, Multidisciplinary
Jianping Zou, Qing Zhang
Summary: Single-walled carbon nanotubes (SWCNTs) are considered a promising electronic material for the future of electronics, with sub-10 nm SWCNT-field effect transistors (FETs) outperforming Si-based FETs. Recent advances in SWCNT electronics focus on fundamental electronic structures, carrier transport mechanisms, and metal/SWCNT contact properties, highlighting subthreshold switching properties for low-power device operations. Challenges and prospects for future SWCNT-based electronics include material preparation, device fabrication, and large-scale ICs integration.
Article
Chemistry, Analytical
Yingshiyu Lin, Lingbo Liu, Gaozhi Ou, Wensheng Huang, Kangbing Wu
Summary: An NFCNT array prepared using nanomaterials was utilized for the rapid field detection of Salbutamol. The effects of Nafion addition on the resistance and electrochemical properties of the array were discussed in depth. The array showed satisfactory recoveries for the detection of Salbutamol in human urine samples.
ANALYTICA CHIMICA ACTA
(2023)
Article
Biochemistry & Molecular Biology
Matthew M. Noor, Alinne L. R. Santana-Pereira, Mark R. Liles, Virginia A. Davis
Summary: Researchers are interested in whether nanomaterials with outstanding mechanical or electrical properties also possess antibacterial properties. The study showed that the purported antibacterial activity of SWNTs may only be effective against bacteria that are sensitized by the dispersant.
Article
Nanoscience & Nanotechnology
Spyridon G. Kosionis, Emmanuel Paspalakis
Summary: In this study, we theoretically investigate the pump-probe response and the four-wave mixing spectrum in a hybrid system composed of a semiconductor quantum dot and a spherical metal nanoparticle. Using a density matrix methodology, we calculate the absorption/gain, dispersion, and four-wave mixing spectra, and analyze their spectral characteristics. We also apply the metastate theory and the dressed-state picture to predict the positions of the spectral resonances.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
L. S. Lima
Summary: This study investigates quantum correlation and entanglement in the non-Hermitian Hubbard model. By analyzing quantum entanglement measures such as entanglement negativity and entropy, the effect of non-Hermitian imaginary hopping on the system is explored. It is found that in the large... limit, the non-Hermiticity reverses the behavior of the ground state energy and low-lying excitations.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Nam-Chol Ri, Chung-Sim Kim, Sang-Ryol Ri, Su-Il Ri
Summary: By decreasing the lattice thermal conductivity of GNR through chemical derivation and strain, enhancing the thermoelectric properties of the electron part can be an important method to approach PGEC. This paper proposes synthesized hybrid systems formed by chemical derivation in the middle parts of b-AGNRs, and investigates the band structures and thermoelectric properties of the electron part under different strains. The results show that the band gaps of the systems significantly increase under different strains.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Le T. T. Phuong, Tran Cong Phong
Summary: This study investigates the effects of gas molecules adsorbed on /312-borophene on its electronic heat capacity and thermal Schottky anomaly. The results show that the adsorbed gas molecules have different impacts on the electronic heat capacity, leading to the generation of various new energy levels.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Tianyan Jiang, Jie Fang, Wentao Zhang, Maoqiang Bi, Xi Chen, Junsheng Chen
Summary: This paper investigates the adsorption and sensing properties of transition metal-doped WSSe gas-sensitive devices towards H2, CO, and CO2 gases related to thermal runaway in Li-ion batteries using density functional theory. The results show that Ti, Mn, and Mo dopants preferentially bind to the S-surface of the WSSe monolayer, and all three monolayers exhibit significantly improved sensing characteristics, with chemisorption towards CO. Band structure analysis suggests that the Ti-WSSe monolayer has the potential to be used as a resistive CO detection sensor. Recovery time calculations indicate the reuse capabilities of the gas-sensitive devices. Mn-WSSe monolayer shows potential for H2 detection, while Mo-WSSe monolayer is more suitable for CO2 detection. This work lays the foundation for potential gas-sensitive applications of WSSe monolayer in thermal runaway scenarios, advancing research in gas sensing domains.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Olga A. Alekseeva, Aleksandr A. Naberezhnov, Ekaterina Yu. Koroleva, Aleksandr Fokin
Summary: This study investigates the temperature dependence of crystal structure and dielectric response in a nanocomposite material containing porous glasses and embedded sodium nitrate. The results reveal a crossover point in the temperature dependence of the order parameter of the structural transition in sodium nitrate nanoparticles, as well as a decrease in activation energy of sodium ions hopping conductivity during heating.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Lijun Cheng, Fang Cheng
Summary: This paper investigates the effects of electric and magnetic fields on the Goos-Hanchen (GH) shift in a semi-Dirac system. The results show that the magnitude and direction of the GH shift depend on various factors such as incidence angle, electric barrier height and width, and magnetic field. It is observed that there is a saltus step in GH shifts at the critical magnetic field, which decreases with increased potential barrier thickness. Additionally, the GH shift can be significantly enhanced by applying an electric field in the III region. These findings are important for the development of semi-Dirac based electronic devices.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Alexander K. Fedotov, Uladzislaw E. Gumiennik, Julia A. Fedotova, Janusz Przewoznik, Czeslaw Kapusta
Summary: The study conducted an improved analysis of carrier transport in single-layer graphene and hybrid structures, showing the coexistence of negative and positive contributions in magnetoresistive effect. Various models were used to analyze the dependences on temperature and magnetic field, providing insights into the behavior of electrical resistance in the structures.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Xuhui Peng, Tao Chen, Ruotong Chen, Shizheng Chen, Qing Zhao, Xiaoping Huang
Summary: In this study, a novel method was proposed to design and fabricate optoelectronic devices with highly precise controlled photorefractive liquid crystal structures. By utilizing quantum dots and electric tuning, a regular periodic grating was formed in a quantum dot-doped liquid crystal volume illuminated by a laser standing evanescent wave field. The obtained optical diffraction pattern showed equally spaced light spots and high diffraction efficiency, indicating a significant change in the refractive index of the nanostructured device.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Kai-Hua Yang, Xiao-Hui Liang, Huai-Yu Wang, Yi-Fan Wu, Qian-Qian Yang
Summary: In this work, a theoretical model is proposed to achieve the controllability of quantum interference and decoherence. The effects of intralead Coulomb interaction, interdot tunneling, and electron-phonon interactions on differential conductance are investigated. The results show the appearance of destructive interference, Fano interference, and negative differential conductance in strong dot-lead tunneling regions, while a characteristic pattern of positive and negative differential conductances appears in the weak dot-lead tunneling regime.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Xueying Wang, Qian Ma, Qi Zhang, Yi Wang, Lingyu Li, Dongheng Zhao, Zhiqiang Liu
Summary: Porous double-channel alpha-Fe2O3/SnO2 heterostructures with tunable surface/interface transport mechanism were successfully fabricated by electrospinning and calcination. These heterostructures exhibited a large specific surface area, providing more active sites and enhanced adsorption capacity. The optimal composite materials showed the highest response value and the fastest response/recovery times to DMF, along with good cycling performance, long-term stability, and high gas selectivity.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Donglin Guo, Zhengmeng Xu, Chunhong Li, Kejian Li, Bin Shao, Xianfu Luo, Jianchun Sun, Yilong Ma
Summary: Using full electron-phonon interactions and the Boltzmann transport equation, this study investigates the phonon scattering channel and electrical properties of graphene under anharmonic phonon renormalization (APRN). The results show that the APRN reduces the phonon frequency and three-phonon phase space with increasing temperature, affecting the acoustic branch more than the optical branch. The thermal conductivity of graphene decreases after considering three- and four-phonon scattering, and the primary scattering channels are identified. Furthermore, the APRN increases the strength of electron-phonon coupling and leads to an increase in n-type electric resistance at room temperature.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Hongping Zhao, Man Zhao, Dayong Jiang
Summary: The study proposes a broadband photodetector with high response, high sensitivity, and controllable band by integrating quantum dots and highly conductive materials. The PD composed of ZnO film/PbS quantum dots heterostructure shows excellent photoresponse performance in the UV-Vis-NIR range, with the peak responsivity increased by 550%, accompanied by significant red shift, faster response, and recovery speed. By using RF magnetron sputtering to prepare ultra-thin ZnO film, the impact of PbS quantum dots on the photoelectric properties of ZnO film is comprehensively and systematically discussed.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Ye Xuan Meng, Liwei Jiang, Yisong Zheng
Summary: Manipulating magnetism by electrical means is an effective method for realizing ultra-low power spintronic-integrated circuits. In this study, it is demonstrated that the two-dimensional semiconductor material InO monolayer can be tuned to a half-metallic state by applying a gate voltage, providing theoretical guidance for adjusting two-dimensional magnetic semiconductors.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Anusha Kachu, Aalu Boda
Summary: In this research, we investigated the impact of confinement nature on a neutral hydrogenic donor impurity in a quantum dot. The study demonstrated intriguing behavior in response to changes in potential shape, quantum dot parameters, and spin-orbit coupling strengths. The findings provide valuable insights into the fundamental physics of quantum dots and impurities and can aid in the design and optimization of QD-based technologies.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)