Article
Chemistry, Multidisciplinary
Mana Yuasa, Ryuki Sumida, Yuya Tanaka, Michito Yoshizawa
Summary: By using a polyaromatic capsule, azobenzene and stilbene derivatives can be quantitatively encapsulated with 100% cis-selectivity and their isomerization can be suppressed. Similarly, C,N-diphenyl imine derivatives can be encapsulated in their otherwise unstable cis-form and their hydrolysis can be inhibited. Supramolecular manipulation allows for significant alteration of the properties of cis-trans isomers.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Polymer Science
Iurii Chubak, Stanard Mebwe Pachong, Kurt Kremer, Christos N. Likos, Jan Smrek
Summary: In this study, we investigated the active topological glass under spherical confinement to determine the critical exponents of the arrested conformations beyond the previous simulated chain lengths. We discovered a previously unresolved tank-treading dynamic mode of active segments along the ring contour and discussed possible connections of the conformational and dynamic features of the system to chromosomes enclosed in the nucleus of a living cell.
Article
Physics, Multidisciplinary
A. Beregi, A. Pontin, P. F. Barker
Summary: The study investigates the role of stimulated Brillouin scattering in a fiber cavity and an optomechanical system based on nonlinear Brillouin scattering. It shows optimal damping for low mechanical resonance frequencies in the hybrid optomechanical system, with blue detuning providing the best damping results compared to standard optomechanics. The study also explores the potential of cooling a mechanical oscillator to the quantum ground state.
NEW JOURNAL OF PHYSICS
(2022)
Article
Polymer Science
Chia-Cheng Chu, Pai-Yi Hsiao
Summary: This article proposes a two-stage model to explain the phenomena of chain expansion released from a confining cavity. In the first stage, the chain is assumed to expand as a sphere, while in the second stage it expands like a coil. The kinetic equations for the variation of chain size are derived in the two stages by balancing the rate of the free energy change with the rate of energy dissipation. Langevin dynamics simulations are performed to examine the theory. The simulation results support the theory and reveal that the expansion process is dominated by the second stage, confirming the predicted curve for coil expansion.
Article
Chemistry, Multidisciplinary
Justin M. Bradley, Elizabeth Gray, Jake Richardson, Geoffrey R. Moore, Nick E. Le Brun
Summary: By adjusting the salt concentration and pH value, the aggregation state of Escherichia coli bacterioferritin (Bfr) can be reversibly controlled, allowing the encapsulation of molecules such as heme. This research provides evidence for the potential biotechnological applications of ferritins.
Article
Engineering, Geological
Maosong Huang, Senjie Tong, Zhenhao Shi
Summary: This study presents a spherical cavity expansion solution to link soil constitutive behavior with engineering meanings such as foundation bearing capacity. The solution is derived based on a critical state constitutive model and validated through finite element analysis, demonstrating its reliability in representing mechanical behavior of sand. The proposed solution is shown to accurately predict resistance of cone penetration and ground movements associated with pipe bursting in sand, providing useful estimations for soil displacements caused by pipe bursting operation.
Article
Engineering, Geological
Suraparb Keawsawasvong, Jim Shiau
Summary: This study presents an advanced approach to evaluate the stability of Hoek-Brown rock mass with a spherical cavity, using rigorous upper bound and lower bound solutions of stability factors solved through advanced finite element limit analysis. Comprehensive design charts, tables, and equations are provided for stability evaluation.
ROCK MECHANICS AND ROCK ENGINEERING
(2022)
Article
Physics, Multidisciplinary
Ahmed G. Salem
Summary: This study presents an analytical analysis of quasisteady flow caused by a spherical viscous fluid droplet translating at a concentric position in a second immiscible micropolar fluid within a spherical cavity with a slip surface. The research focuses on the case when one of the fluid phases has a microstructure nature (micropolar fluid). The study obtains general solutions for the velocity fields inside and outside the droplet based on the concentric position and investigates the effects of various factors on the wall-corrected drag force acting on the droplet.
CHINESE JOURNAL OF PHYSICS
(2023)
Article
Polymer Science
Oxana A. Frolovskaya, Vladislav V. Pukhnachev
Summary: This paper investigates the problem of filling a spherical cavity in a liquid and the effects of impurities on cavitation behavior. The results show that for all models, the cavity filling time is finite if the surface tension is not zero. However, the relaxation factor can significantly alter the flow pattern by slowing down the filling process and reducing the energy accumulation during bubble collapse.
Article
Mechanics
M. S. Faltas, E. I. Saad
Summary: A semi-analytical study is conducted on the thermophoretic migration of a spherical particle in a porous medium inside a spherical cavity. The porous medium is modeled as a Brinkman fluid and the Darcy permeability is determined from experimental data. The results show that the thermophoretic velocity and mobility coefficients vary with the permeability parameter and relative thermal and surface properties of the particle and cavity.
Article
Chemistry, Physical
Chwen-Yang Shew, Kenichi Yoshikawa
Summary: We conducted Monte Carlo simulation on a simple model to study the arrangement of multiple rigid rods confined within a rigid spherical cavity under crowded conditions. Depletion forces are essential for rods shorter than the cavity's radius, which distribute around the cavity boundary with low orientation ordering in the presence of rigid crowders. For rods longer than the cavity's radius, they form a bundle inside the cavity and exhibit nematic ordering with increasing levels of crowding. The formation of nematic order is entropically favorable, allowing more free space for crowders to distribute around the cavity boundary. These findings are consistent with experimental results in previous literature.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Optics
Ping Gu, Jing Chen, Siyu Chen, Chun Yang, Zuxing Zhang, Wei Du, Zhengdong Yan, Chaojun Tang, Zhuo Chen
Summary: Strong coupling between high-Q plasmonic whispering gallery mode and high-Q cavity plasmon resonance can lead to a record Rabi splitting energy of 805 meV, with new hybrid modes exhibiting an extralong lifetime and large electric field intensity enhancement. These findings may have potential applications in bright single-photon sources.
PHOTONICS RESEARCH
(2021)
Article
Mechanics
Chin Y. Chou, Huan J. Keh
Summary: This study presents a semi-analytical investigation of the steady flow around a rotating spherical particle in an incompressible Newtonian fluid inside an eccentric spherical cavity with slip surfaces at low Reynolds numbers. Accurate results of the torque exerted by the fluid on the particle are obtained based on various dimensionless parameters. The boundary effect of the cavity with a slip wall on the rotation of the slip particle is substantial and intriguing, showing different trends based on the values of the parameters involved.
EUROPEAN JOURNAL OF MECHANICS B-FLUIDS
(2021)
Article
Chemistry, Multidisciplinary
Jun-Long Zhu, Dawei Zhang, Tanya K. Ronson, Wenjing Wang, Lin Xu, Hai-Bo Yang, Jonathan R. Nitschke
Summary: This study reports the self-assembly of a truxene-faced Zn4L4 tetrahedron capable of binding the smallest hydrocarbons in solution. By incorporating inward-facing ethyl groups, the cage cavity was tailored to encapsulate methane, ethane, and ethene via van der Waals interactions. Interestingly, gas capture showed divergent selectivities in solution and the amorphous solid state, which may have implications for designing new processes for methane and ethane purification.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Ping Gu, Yuheng Guo, Jing Chen, Zuxing Zhang, Zhendong Yan, Fanxin Liu, Chaojun Tang, Wei Du, Zhuo Chen
Summary: In this theoretical study, multiple sharp Fano resonances are investigated in a deep-subwavelength spherical hyperbolic metamaterial (HMM) cavity. It is found that these resonances exhibit narrow linewidths, various line shapes, and tunability, while the deep-subwavelength feature of the proposed cavity is also confirmed.
Article
Chemistry, Organic
Sengodagounder Muthusamy, Muthukumar Malarvizhi, Eringathodi Suresh
Summary: An efficient strategy for the synthesis of 3,4-dihydro-2H-1,3-thiazines/3,4-dihydro-2H-1,3-selenazines from propargylic alcohols and thioamides/thiosemicarbazones/selenamides is described, offering a convenient route to these heterocycles without the need to exclude air or moisture.
ASIAN JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Unnati Patel, Parth Patel, Bhavesh Parmar, Abhishek Dadhania, Eringathodi Suresh
Summary: The study presents a promising Zn(II)-based coordination network material ADES-3 for efficient CO2 fixation and catalytic potential in the cycloaddition reaction of CO2 with epoxides. Experimental results demonstrate that ADES-3 shows good performance in terms of synthetic chemistry and thermal stability, and can be reused for up to four catalytic cycles with successful retention of activity.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Chemistry, Organic
Harshvardhan Singh, Chiranjit Sen, Eringathodi Suresh, Asit B. Panda, Subhash C. Ghosh
Summary: This atom-economical and efficient route for the direct amidation and amination of aryl C-H bonds using the synthesized recyclable heterogeneous Cu-MnO catalyst shows excellent results with good to excellent yields under mild conditions; the catalyst can be reused several times without significant loss of reactivity, demonstrating its environmental friendliness and cost-effectiveness.
JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Genetics & Heredity
A. Rathipriya, A. Kathirvelpandian, S. A. Shanmugam, E. Suresh, N. Felix
Summary: Fishes, as important vertebrates in the animal world, play a significant role in global biodiversity. The study of fish and their stability is crucial for the conservation and management of resources. Correct species identification is essential for these purposes, and character-based methods can be effective tools for this task.
MITOCHONDRIAL DNA PART A
(2021)
Article
Chemistry, Inorganic & Nuclear
Unnati Patel, Bhavesh Parmar, Abhishek Dadhania, Eringathodi Suresh
Summary: Functional neutral metal-organic frameworks (MOFs) have been successfully synthesized and characterized with adsorption and catalytic properties, showing efficient removal of dyes and transformation of high-value chemical intermediates. These MOFs exhibit good reusability and stability, with potential applications in environmental remediation and industrial processes.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
M. Rajkumar, K. Parameswaran, E. Suresh, A. Chandramohan
Summary: 4CA5SSA crystal exhibits various hydrogen bonding interactions, with N-H∙∙∙O and O-H∙∙∙O hydrogen bonds constructing the supramolecular architecture, while C-H∙∙∙O hydrogen bonds play a dominant role in interlayer interactions. The crystal shows good thermal stability and potential antimicrobial and antioxidant activities.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Biochemistry & Molecular Biology
Rakesh Nirmalkar, E. Suresh, N. Felix, A. Kathirvelpandian, Mir Ishfaq Nazir, Amit Ranjan
Summary: This study focuses on the green synthesis of iron nanoparticles using plant extracts and investigates their properties and applications. Results showed that iron nanoparticles were successfully synthesized using Sargassum wightii extract, and the nanoparticles had negative and positive charges. Feeding the nano-iron supplemented diet to Etroplussuratensis fingerlings significantly improved their growth and serum biochemical profile.
BIOLOGICAL TRACE ELEMENT RESEARCH
(2023)
Article
Agriculture, Dairy & Animal Science
A. Rathipriya, A. Kathirvelpandian, S. A. Shanmugam, A. Uma, E. Suresh, N. Felix
Summary: In this study, molecular signatures and character-based methods were used to identify and classify fish in Pulicat Lake. By using 16S rRNA barcode analysis, 29 species of fish were successfully identified, and character-based molecular diagnostic keys were developed.
INDIAN JOURNAL OF ANIMAL RESEARCH
(2022)
Article
Chemistry, Physical
V Raju, E. Suresh, Boorla Shashikanth, B. Jagadeesh, Azmeera Srinivas, T. Ch Anil Kumar, Nellore Manoj Kumar
Summary: In this paper, a Double Material Gate Tunnel Field Effect Transistor (DG-TFET) is proposed to address the challenge of low on current in TFET. By using two different semiconductor materials and a symmetrical gate structure, DG-TFET improves drain current and transconductance characteristics, achieving significant improvement in on/off current ratio and on current.
Article
Nanoscience & Nanotechnology
Parth Patel, Unnati Patel, Bhavesh Parmar, Abhishek Dadhania, Eringathodi Suresh
Summary: Developing a novel heterogeneous catalyst for regioselective ring-opening reactions of spiro-epoxyoxindoles has significant importance in the pharmaceutical industry. In this study, a chiral-phase pure Zn-based metal-organic framework (MOF) was synthesized and shown to efficiently catalyze the formation of beta-alkoxy/beta-hydroxy alcohols. The catalyst exhibited excellent activity and stability, and the catalytic products were confirmed by single-crystal X-ray diffraction (SXRD) analysis.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Inorganic & Nuclear
Bhavesh Parmar, Parth Patel, Gopala Ram Bhadu, Eringathodi Suresh
Summary: Two isostructural MOFs with different ligands were synthesized and their catalytic activities were compared. One of the MOFs showed better catalytic performance and both MOFs exhibited good reusability.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2022)
Review
Microbiology
M. P. Arulmoorthy, R. Vijayan, K. Sinduja, E. Suresh, S. Vasudevan
Summary: Over the past three decades, the shrimp industry has been affected by numerous destructive diseases, including viral, bacterial, and parasitic diseases. A new emerging viral disease, Decapod iridescent virus 1 (DIV1), is now threatening the shrimp culture industry in Asia. This review article discusses the significance of DIV1 and its implications for global aquaculture.
ARCHIVES OF MICROBIOLOGY
(2022)
Article
Fisheries
M. Anjusha, S. Prakash, A. Kathirvelpandian, M. Sakthivel, N. Kalaiselvi, E. Suresh
Summary: This study aimed to assess the repeatability and phenotypic correlation of reproductive traits in captive zebrafish. Breeding trials were conducted on 10 breeding pairs, and data on fecundity, fertility, hatchability, and survival rate were recorded. The results showed moderate repeatability values for most reproductive traits, except for the hatchability of fertilised eggs. The phenotypic correlation analysis indicated significant correlations between fertility and hatchability of fertilised eggs, hatchability of total eggs, survival rate of total eggs, and survival rate of larvae.
INDIAN JOURNAL OF FISHERIES
(2023)
Article
Chemistry, Multidisciplinary
Gopala Ram Bhadu, Bhavesh Parmar, Parth Patel, Jayesh C. Chaudhari, Eringathodi Suresh
Summary: The development of high-efficiency and durable bifunctional electrocatalysts is important in the field of energy storage/conversion. Co@NGr prepared by pyrolysis of mixed ligand cobalt-based MOF displays good OER and HER activity, with Co@NGr-900 showing efficient bifunctional electrocatalyst performance. This study provides insight for the development of cost-effective nonprecious element-based electrocatalysts for water splitting.
Article
Chemistry, Multidisciplinary
Mani Balamurugan, Eringathodi Suresh, Mallayan Palaniandavar
Summary: A series of non-heme mu-oxo-bridged dinuclear iron(iii) complexes have been isolated and studied for their catalytic activity in the oxidative transformation of alkanes. The complexes were characterized using various techniques, with the molecular structures of two of them successfully determined.
