Article
Chemistry, Analytical
Amie E. Norton, Daoli Zhao, Stephen D. Taylor, Steven R. Kennedy, Trevor D. Ball, Mark O. Bovee, William B. Connick, Sayandev Chatterjee, Mahmood Karimi Abdolmaleki
Summary: This study reports a reversible system based on a platinum salt for humidity sensing, using humidity-induced vapor coloration/vapor luminescence behavior. The method is simple, economic, scalable, and applicable to both powder and crystalline samples.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Multidisciplinary
Anusree Natraj, Woojung Ji, Junjie Xin, Ioannina Castano, David W. Burke, Austin M. Evans, Michael J. Strauss, Mohamed Ateia, Leslie S. Hamachi, Nathan C. Gianneschi, Zeid A. ALOthman, Junliang Sun, Kareem Yusuf, William R. Dichtel
Summary: This study successfully synthesized imine-linked 2D COF single crystals and characterized their crystal structures and separation performance. The results demonstrate that single-crystalline COFs exhibit better separation performance compared to polycrystalline COFs, highlighting the importance of material quality for COF properties.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Yu Han, Yinlin Chen, Yujie Ma, Jamie Bailey, Zi Wang, Daniel Lee, Alena M. Sheveleva, Floriana Tuna, Eric J. L. McInnes, Mark D. Frogley, Sarah J. Day, Stephen P. Thompson, Ben F. Spencer, Marek Nikiel, Pascal Manuel, Danielle Crawshaw, Martin Schroder, Sihai Yang
Summary: This paper reports the high adsorption of benzene at low pressure and efficient separation of benzene/cyclohexane achieved by controlling the pore chemistry of two families of robust metal-organic frameworks, UiO-66 and MFM-300. UiO-66-CuII exhibits exceptional adsorption of benzene at 3.92 mmol g-1 and MFM-300(Sc) shows a high selectivity of 166 for the separation of benzene/cyclohexane (v/v = 1/1) mixture. The binding mechanisms of benzene and cyclohexane in these materials are revealed through in situ synchrotron X-ray diffraction, neutron powder diffraction, and multiple spectroscopic techniques. Reversible binding of benzene at an open Cu(II) site within metal-organic frameworks is also visualized for the first time.
Review
Chemistry, Inorganic & Nuclear
Soumya Mukherjee, Debobroto Sensharma, Omid T. Qazvini, Subhajit Dutta, Lauren K. Macreadie, Sujit K. Ghosh, Ravichandar Babarao
Summary: The chemical industry contributes around 7% of the global GDP, with 40% of its energy consumption coming from separation/purification processes of commodity chemicals. The use of recyclable adsorbents, such as metal-organic framework (MOF) physisorbents, shows promise in reducing this energy footprint, particularly in the separation of C6 cyclic hydrocarbons like benzene and cyclohexane. Despite the potential of MOFs as selective adsorbents, further research is needed to fully explore their capabilities in this niche area.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Engineering, Electrical & Electronic
Xinru Li, Zhidong Lin, Liming Liu, Xiaowen Zhang
Summary: NaBi(MoO4)(2) mesoporous material was successfully synthesized using a solvothermal method, and composites doped with Co3O4 and CuO were prepared. The average grain size of the nanoparticles was approximately 31 nm, and they exhibited a mesoporous structure. Co3O4 was uniformly distributed on the surface of NaBi(MoO4)(2) nanoparticles to form heterojunctions. The Co3O4-doped composite showed superior gas-sensitive properties compared to the pure NaBi(MoO4)(2) mesoporous material.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
T. Sonia, D. Balamurugan, B. G. Jeyaprakash
Summary: Zinc Oxide (ZnO) was deposited on glass substrates by spray pyrolysis method at 350°C, showing higher response and selectivity to acetone vapor. The sensor exhibited faster response and recovery towards acetone at the same operating temperature, with good surface compositional stability after continuous exposure for 10 hours.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Chemistry, Physical
Tao He, Xiang-Jing Kong, Zhen-Xing Bian, Yong-Zheng Zhang, Guang-Rui Si, Lin-Hua Xie, Xue-Qian Wu, Hongliang Huang, Ze Chang, Xian-He Bu, Michael J. Zaworotko, Zuo-Ren Nie, Jian-Rong Li
Summary: Porous physisorbents are attractive candidates for the removal of volatile organic compounds. In this study, a double-walled metal-organic framework demonstrated high affinity and adsorption capacity towards benzene at low pressures. The findings provide insights into the development of recyclable physisorbents for environmental remediation.
Article
Chemistry, Multidisciplinary
Tiantian Feng, Yihui Yuan, Shilei Zhao, Lijuan Feng, Bingjie Yan, Meng Cao, Jiacheng Zhang, Wenyan Sun, Ke Lin, Ning Wang
Summary: The detection of environmental uranyl is a topic of increasing interest. This study presents a detection strategy based on the unique uranyl-triggered photocleavage property, using fluorescent-molecule-labelled protein fragments to achieve high selectivity and a low detection limit of 24 pM for uranyl detection. The method shows high reliability and stability, making it promising for practical applications in diverse environments.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Environmental Sciences
Ashwini S. Varpe, Mrinalini D. Deshpande, Dipak R. Tope, Ashok V. Borhade
Summary: CdFe2O4/Al2O3 magnetic nanocomposite photocatalyst is synthesized by sol-gel auto-combustion method, and its role as a photocatalyst is studied. The influence of Al2O3 concentration on the photocatalytic property is investigated. The 10% composite sample shows superior properties compared to other concentrations and bare CdFe2O4 nanoparticles. The degradation rate of xylenol orange dye reaches 92.29% after 30 minutes of photocatalytic reaction.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Electrical & Electronic
Marco Fratus, Jongcheon Lim, James K. Nolan, Emilee Madsen, Yumin Dai, Chi Hwan Lee, Jacqueline C. Linnes, Hyowon Lee, Muhammad A. Alam
Summary: Smart, ultrascaled, always-on wearable (and implantable) sensors are an exciting frontier of modern medicine. Among them, minimally invasive microneedles (MN) are an emerging technology platform for theragnostic applications. Compared to traditional continuous glucose measurement (CGM) devices, these MNs offer painless insertion and simple operation.
IEEE SENSORS JOURNAL
(2023)
Article
Chemistry, Analytical
Hanqing Wu, Huiling Chen, Sining Zheng, Hongyu Guo, Fafu Yang
Summary: A new fluorescent sensor TBTPI was reported for the selective and sensitive detection of pesticide starane, showing great potential for agricultural and daily life applications.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Engineering, Electrical & Electronic
Praveen Dwivedi, Rohit Singh, Brajendra Singh Sengar, Amitesh Kumar, Vivek Garg
Summary: In this study, a new simulation approach for transient analysis of a single cavity dielectric-modulated p-type tunnel field-effect transistor (TFET) for biosensing applications was investigated. The device performance was examined using a 2D device simulator, with results calibrated against experimental data. The study focused on DC transfer characteristics, transient response of drain current, sensitivity, and selectivity, showing significant improvement in results for biosensing applications.
IEEE SENSORS JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Ryosuke Hirakida, Junji Fujimoto, Masao Ogata
Summary: This study calculates the first and second order spin currents of the electric field using a specific tight-binding model with time-reversal symmetry. The results show that the first-order spin current vanishes, while the second-order spin current is finite and dependent on the chirality of the model. These findings provide useful information for understanding chirality-dependent spin polarization phenomena in systems with time-reversal symmetry.
Article
Automation & Control Systems
Mohammad Irshad, Ahmad Ali
Summary: In this study, IMC-PI/PID controllers for time-delayed inverse response processes are proposed. A set of tuning rules is provided for selecting the tuning parameter, and the normalized form of transfer functions simplifies the design procedure. The novelty of this approach lies in the ability to switch between smooth and tight control while achieving the desired maximum sensitivity.
Article
Materials Science, Ceramics
R. Yassine, A. M. Abdallah, R. Sayed Hassan, N. Yaacoub, R. Awad, Z. Bitar
Summary: This study investigates the optical and magnetic properties of nanosized NiO/CdFe2O4 composites. The results show the presence of NiO and CdFe2O4 phases without impurities. The optical properties were found to be better investigated using HCl as a solvent compared to ethanol. The magnetic study revealed the presence of the spontaneous exchange bias effect at 77 K.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
R. Bhuvaneswari, V. Nagarajan, R. Chandiramouli
Summary: The research explores the influence of cumene and toluene on Arsenene Nanosheet, both in its pristine form and aluminum-doped form. Structural stability and electronic characteristics are verified and estimated for both forms. Interaction properties of the target molecules with the base material and Al-doped base material are compared to determine their ability to discern between cumene and toluene.
Article
Chemistry, Multidisciplinary
S. Saravanan, V Nagarajan, R. Chandiramouli
Summary: The research showed that methanol and ethanol molecules can be physisorbed on stair phosphorene nanosheet, affecting its band gap. The findings suggest that stair-PNS can be utilized as a chemi-resistive sensor for detecting alcohol vapors.
STRUCTURAL CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
R. Bhuvaneswari, V Nagarajan, R. Chandiramouli
Summary: This research investigated the potential of beta-Tellurene Nanosheet as a chemi-resistive sensor to detect hazardous air pollutants such as 2-Butanone and 2-Pentanone emitted from solid waste and landfills. The electronic attributes and sensing properties of the nanosheet were evaluated, suggesting that beta-Tellurene could be a suitable sensor for detecting 2-Butanone and 2-Pentanone with desirable adsorption characteristics.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
R. Bhuvaneswari, V Nagarajan, R. Chandiramouli
Summary: The study investigates the utility of hexagonal buckled configuration of beta arsenene nanotube in removing persistent organic pollutants Heptachlor and Mirex from water resources. The nanotube demonstrates admirable adsorption energy, notable Bader charge transfer, and appealing average energy gap variation, making it a potentially effective solution for environmental pollution.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
J. Princy Maria, R. Bhuvaneswari, V. Nagarajan, R. Chandiramouli
Summary: Phosphorene has attracted considerable attention as gas/vapor sensors due to its gas/vapor interaction and chemi-resistive properties. The study investigated the adsorption properties of chloropicrin and phosgene on kagome phosphorene, demonstrating that adsorption leads to current variations in the molecular device. This research paves the way for deploying kagome phosphorene sheets to detect trace levels of choking agents in ambient air.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
R. Bhuvaneswari, V. Nagarajan, R. Chandiramouli
Summary: The study investigated the detecting potency of 5-8 defect induced Phosphorene nanosheet towards o-xylene and styrene using density functional theory calculations, finding it to have potential as a resistance-based chemosensor.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
V. Nagarajan, R. Chandiramouli
Summary: The study introduces a novel kagome phosphorene nanoribbon (KPh-NR) and investigates the adsorption behavior of malodorous molecules on its surface using the ab-initio method. The KPh-NR exhibits semiconductor characteristics with the potential to be utilized as a chemical nanosensor for detecting various molecules in the environment.
Article
Chemistry, Physical
R. Bhuvaneswari, V. Nagarajan, R. Chandiramouli
Summary: By using density functional theory calculations, the buckled bismuthene nanotube shows potential in removing drugs from water bodies, as indicated through the computation of formation energy and investigation of electronic characteristics.
Article
Chemistry, Physical
M. S. Jyothi, V. Nagarajan, R. Chandiramouli
Summary: The study investigated the adsorption features of dichlobenil and isoproturon on square-octagon phosphorene nanotubes (so-PNT) using density functional theory, demonstrating their chemisorption nature and potential use as an efficient material for removing these pesticide molecules. The presence of polar groups and aromatic rings in the target system was found to contribute to the chemisorption process through pi-pi interactions and electron-donor-acceptor interactions.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Biochemical Research Methods
S. Saravanan, V. Nagarajan, R. Chandiramouli
Summary: The study investigated the adsorption behavior and stability of zipper phosphorene nanosheet based on first-principles calculation when exposed to toxic aldehyde compounds, suggesting its potential as a chemical sensor for monitoring formaldehyde and acetaldehyde in indoor air.
JOURNAL OF MOLECULAR GRAPHICS & MODELLING
(2021)
Article
Chemistry, Physical
V Nagarajan, R. Chandiramouli
Summary: In this study, the chemisorption of chlortetracycline (CTC) and oxytetracycline (OTC) molecules on theta phosphorene nanoribbon (theta-PNRibbon) was investigated based on the first-principles framework. The adsorption energy and charge transfer indicated the chemisorption of the target molecules, and the effects of adsorption on the electronic properties of theta-PNRibbon were studied.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
R. Bhuvaneswari, V Nagarajan, R. Chandiramouli
Summary: The study examined the competency of red tricycle phosphorene (RTP) nanoribbon in eliminating pharmaceutical antibiotics from water environment through adsorption mechanism. The results showed effective charge transmission and chemisorption interaction between the toxicants and RTP nanoribbon, indicating the potent usability of RTP nanoribbon in eradicating the drugs.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
V Nagarajan, R. Chandiramouli
Summary: This report investigates the structural stability and electronic properties of twisted bilayer beta phosphorene, finding it suitable as a sensing base substrate for adsorbing formaldehyde and methanol.
Article
Chemistry, Physical
V. Nagarajan, R. Chandiramouli
Summary: This study investigates the adsorption characteristics of chlorobenzene and 1,4-dichlorobenzene on theta arsenene sheets (theta-AsNS) through first-principles study, revealing physisorption as the dominant adsorption behavior. The calculations demonstrate that theta-AsNS is a suitable material for detecting the presence of chlorobenzene and 1,4-dichlorobenzene molecules based on changes in electronic properties.
Article
Chemistry, Physical
V Nagarajan, R. Chandiramouli
Summary: The study investigated the structural firmness of delta phosphorene nanosheet and the adsorption behavior of hazardous halogenated compounds on del-PNS using density functional theory. It was found that del-PNS is stable with semiconductor behavior, and capable of adsorbing chief halogenated compounds effectively.
COMPUTATIONAL AND THEORETICAL CHEMISTRY
(2021)
