Article
Optics
Romil Audhkhasi, Bo Zhao, Shanhui Fan, Zongfu Yu, Michelle L. Povinelli
Summary: The ability to design multi-resonant thermal emitters is crucial for the advancement of various applications. This study proposes a prediction tool based on coupled-mode theory, which accurately predicts and optimizes the spectral response of coupled, multi-resonant systems, reducing computational overhead.
Article
Engineering, Electrical & Electronic
Yu Zhou, Han-Xiong Li, Sheng-Li Xie
Summary: This article proposes a physics/data hybrid modeling framework for the thermal process of lithium-ion batteries. A space decomposition strategy is designed to generate a more effective model, and a reduced-order model and data-based learning are used to capture the battery's thermal dynamics. Simulation studies and experiments demonstrate the effectiveness of the proposed methodology.
IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION
(2022)
Article
Biochemistry & Molecular Biology
Lamiaa O. El-Halaby, Walaa M. El-Husseiny, Shahenda M. El-Messer, Fatma E. Goda
Summary: This study involved the design and synthesis of 21 new 1,4-biphenylpiperazine derivatives, with compound 20 showing the best activity and selectivity towards hMAO-B. The compounds demonstrated potential as promising leads for the development of more potent and safer MAO inhibitors for the treatment of various neurological disorders.
BIOORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Rasoul Eslami-Farsani, Sadegh Farhadian, Behzad Shareghi, Lida Momeni
Summary: This study investigates the interaction between ethylene glycol organic solvent and myoglobin protein, and its effect on the thermal stability and structure of myoglobin. The results show that the presence of ethylene glycol can increase the thermal stability of myoglobin and result in increased UV-Vis absorption and decreased intrinsic fluorescence emission intensity. Molecular docking and simulation results confirm the formation of a complex between ethylene glycol and myoglobin, which stabilizes the protein structure.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Biochemistry & Molecular Biology
Andrew Jewett, David Stelter, Jason Lambert, Shyam M. Saladi, Otello M. Roscioni, Matteo Ricci, Ludovic Autin, Martina Maritan, Saeed M. Bashusqeh, Tom Keyes, Remus T. Dame, Joan-Emma Shea, Grant J. Jensen, David S. Goodsell
Summary: Coarse-grained models are crucial in studying biomolecular dynamics and assembly, but simulating them can be challenging due to unconventional force fields and particle attributes, as well as systems not being in thermal equilibrium. Moltemplate is a file format for storing coarse-grained molecular models and forces, with broad scope and popularity in computational chemistry, materials science, and structural biology. It accommodates new forces developed for LAMMPS, making it a useful tool with thousands of users.
JOURNAL OF MOLECULAR BIOLOGY
(2021)
Article
Materials Science, Ceramics
Prhashanna Ammu, Mardochee Reveil, Adama Tandia
Summary: Thermal poling is a process that depletes network modifiers from the surfaces of oxide glasses. This study uses Molecular Dynamics simulation to investigate the formation of Na-depleted layers in sodium aluminosilicate glasses. The results show that the thickness of the depleted layers decreases as the ratio of A(l2)O(3) to SiO2 concentration increases, and structural analysis reveals the redistribution of aluminum coordination in the depleted layers.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Thermodynamics
Kevin D. Cole, Alex Riensche, Prahalada K. Rao
Summary: This work introduces a method for solving the heat equation using the spectral graph method, which is applicable to temperature defined at discrete points and described by a graph. The method utilizes eigenvectors and eigenvalues to solve the heat equation on the graph, eliminating the need for computationally intensive procedures in the finite element method. The method is extended to include boundary heat loss and physics-based edge weights, and a discrete Green's function is introduced for solutions under various heating conditions. The accuracy of the method is validated through comparison with analytical solutions and finite difference solutions.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Chemistry, Physical
Jijo Johnson, C. Justin Dhanaraj
Summary: A new quinoxaline-based Schiff base ligand was synthesized and characterized. The coordination behavior of the ligand with transition metal ions was studied, and the properties and geometries of the coordination compounds were determined. Biological activities and theoretical studies were also conducted.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Engineering, Manufacturing
Shaohua Chen, David Seveno, Larissa Gorbatikh
Summary: The study established a multiscale model to calculate the effective thermal conductivity of graphene and polyamide-6 composite, finding that randomly entangled graphene networks exhibit better thermal conductivity than composites with specific graphene alignment. The results suggest that maximizing composite thermal conductivity can be achieved by producing the optimal orientation distribution for graphene flakes without increasing graphene loading.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Physics, Condensed Matter
Jia Chen, Xiaobing Zhang
Summary: Silicon material with pores is a promising semiconductor material that enhances work efficiency by reducing thermal conductivity. The study shows that changing the characteristic size of pores in silicon devices can significantly impact temperature distribution and effective thermal conductivity. Results indicate that a small pore with a porosity of about 0.4 can cause a significant reduction in thermal conductivity at room temperature.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Computer Science, Artificial Intelligence
Chao Shang, Qinqing Liu, Qianqian Tong, Jiangwen Sun, Minghu Song, Jinbo Bi
Summary: Despite the competitive performance of graph convolutional networks (GCNs) extending the convolution operation from images to graphs, current GCNs struggle with a variety of applications, particularly cheminformatics problems. Recent applications of multiple GCNs to chemical compound structures have revealed the need to consider edge consistency among nodes in different molecular graphs to accurately reflect the chemical bonds and similarities. The proposed variant of GCN decomposes molecular graphs into multiple views, enforcing edge consistency constraints to ensure similar attention weights for similar edges in different graphs during information propagation.
Article
Biochemistry & Molecular Biology
Saira Manzoor, Rana Adnan Tahir, Muhammad Adnan Younis, Wen-Li Cao, Qamar-un-nisa Tariq, Amjad Ali, Naushad Ahmad, Chuntian Qiu, Bingbing Tian, Jian-Guo Zhang
Summary: In this study, a series of pyrimidine-derived Schiff bases were synthesized and evaluated for their antibacterial, antioxidant, antifungal, and anticancer activities. The computational docking analysis showed that these compounds exhibited better binding affinities compared to standard drugs.
BIOORGANIC CHEMISTRY
(2023)
Article
Thermodynamics
Qi Wang, Jianfei Dong
Summary: This paper attempts to model the photo-electro-thermal dynamics of a dual-spectral UV light source using a structured nonlinear system identification technique. The nonlinear electro-thermal model is identified from experimental data and integrated with the photo-electro model to form a complete dynamic model. Experimental results verify the accuracy of the model in predicting temperature variations and its application in controller design.
APPLIED THERMAL ENGINEERING
(2022)
Article
Chemistry, Physical
Murali Mohan Gampa, Narayana Reddy Pedavenkatagari, Pannala Padmaja
Summary: A novel series of 1,2,3-triazolyl-acetamide derivatives were synthesized and their structures were confirmed by various analyses. The compounds exhibited strong antibacterial activity against different microorganisms, with compounds 9h, 9c, 9d, and 9i showing the most potent inhibitory effects on K. pneumoniae, S. aureus, S. pneumoniae, and E. coli, respectively. The study also explored the interaction between the compounds and a target protein, providing insights into the key active site and binding mode.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Biochemistry & Molecular Biology
Anne Boyina Sravani, K. Mangala Shenoy, Baby Chandrika, B. Harish Kumar, Suvarna G. Kini, K. Sreedhara Ranganatha Pai, Shaila A. Lewis
Summary: The complex of curcumin with sulfobutyl ether-beta-cyclodextrin (SBE beta CD) demonstrates superior antimicrobial activity, making it a promising alternative for the treatment of urinary tract infections (UTIs) caused by Gram-negative bacteria E. coli.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2023)
Article
Materials Science, Ceramics
T. Prakash, E. Ranjith Kumar, G. Neri, Tahani M. Bawazeer, Kholood Alkhamis, Alaa Munshi, Salman S. Alharthi, Nashwa M. El-Metwaly
Summary: Microwave synthesis method was used to prepare CdO nanoparticles with PEG, NH3 and NaOH as co-reagents. The role of co-reagents on the microstructural and morphological study was evaluated through XRD, SEM, TEM and EDS. The pH of the solution, determined by the co-reagent used, was found to be a key parameter affecting the morphology of CdO nanostructures.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Salhah D. Al-Qahtani, Adel M. Binyaseen, Enas Aljuhani, Meshari Aljohani, Hanan K. Alzahrani, Reem Shah, Nashwa M. El-Metwaly
Summary: Novel fluorescent coatings developed for glass materials, including photochromic fluorescent and persistent phosphorescent coatings, display fluorescence and scratch-resistant superhydrophobic properties.
CERAMICS INTERNATIONAL
(2022)
Article
Crystallography
Rabia Usman, Arshad Khan, Amjad Khan, Moamen S. Refat, Amani M. R. Alsaedi, Faiz-Ur Rahman
Summary: The compound C11H9Cl2N5Zn exists in monoclinic crystal system.
ZEITSCHRIFT FUR KRISTALLOGRAPHIE-NEW CRYSTAL STRUCTURES
(2022)
Article
Chemistry, Multidisciplinary
Khuloud A. Alibrahim, Amnah Mohammed Alsuhaibani, Moamen S. Refat
Summary: This article focuses on the preparation and characterization of NH2-NH2 hydrazine molecule compounds. The hydrazine sulfate complexes of Mn(II), Fe(III), Cu(II), and Zn(II) were synthesized and characterized using various analytical techniques. The results indicate that these complexes have an octahedral geometric structure and undergo thermal degradation to form solid metal sulfate as residual products. Infrared spectroscopy and elemental analysis provide insights into the coordination modes of NH2-NH2 ligands with metal ions. XRD and AFM analyses reveal that the synthesized hydrazine metal complexes exhibit nano scale ranges.
BULLETIN OF THE CHEMICAL SOCIETY OF ETHIOPIA
(2022)
Article
Materials Science, Paper & Wood
Abdu Subaihi, Salhah D. Al-Qahtani, Roba M. S. Attar, Kholood Alkhamis, Hanan K. Alzahrani, Mona Alhasani, Nashwa M. El-Metwaly
Summary: In this study, fluorescent and hydrophobic composite coatings were prepared and applied onto cellulose-based fabrics. The coatings exhibited reversible and fast fluorescent photochromism under ultraviolet stimulation and provided good UV protection.
Article
Materials Science, Paper & Wood
Zehbah A. Al-Ahmed, Razan M. Snari, Amerah Alsoliemy, Hanadi A. Katouah, Abrar Bayazeed, Hana M. Abumelha, Nashwa M. El-Metwaly
Summary: Smart cotton fibers with temperature-driven sensitivity were developed using a simple finishing method. The chemical properties, color changes, surface morphology, and physical properties of the treated cotton fibers were studied. A mechanism for the thermochromic activity of poly(N-vinylcaprolactam-co-tricyanofuranhydrazone) was proposed.
Article
Chemistry, Physical
Abdel Majid A. Adam, Hosam A. Saad, Moamen S. Refat, Mohamed S. Hegab, Ghaferah H. Al-Hazmi, Amnah Mohammed Alsuhaibani, H. M. Mohamed
Summary: The research investigates the charge-transfer interaction between quinine and five acceptor molecules, showing that quinine forms stable and vividly colored CT complexes with the acceptors. Different ratios of reaction are observed between quinine and the acceptors.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Biochemistry & Molecular Biology
Sadaf Mutahir, Tayyaba Irfan, Nimra Nadeem, Muhammad Humayun, Muhammad Asim Khan, Moamen S. Refat, Chundong Wang, Tahir Ali Sheikh
Summary: This research reports the formation of a new adsorbent, activated bentonite with cinnamic acid, which demonstrates high efficiency in removing dyes from wastewater. The study compares the adsorption efficiency of the activated bentonite with unmodified bentonite using methyl orange and rhodamine-B as target dyes. Characterization techniques such as XRD, FTIR, and SEM were employed to analyze the activated bentonite. The results suggest that acid activation with cinnamic acid increases the surface area of the bentonite, enhancing its adsorption efficiency.
Article
Materials Science, Multidisciplinary
Hatun H. Alsharief, Gamil A. A. Al-Hazmi, Seraj Omar Alzahrani, Albandary Almahri, Nasser A. Alamrani, Nada M. Alatawi, Nashwa M. El-Metwaly
Summary: A novel strategy was introduced using plasma-assisted screen-printing with rare-earth doped strontium aluminate nanoparticles to produce photoluminescent nonwoven polypropylene fabrics. Superhydrophobic properties of the phosphor-printed nonwoven polypropylene textiles were enhanced by increasing the phosphor ratio in the printing paste.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Crystallography
Abdulrahman A. Almehizia, Hamad M. Alkahtani, Mohamed A. Al-Omar, Ahmad J. Obaidullah, Mashooq A. Bhat, Lamees S. Alrasheed, Ahmed M. Naglah, Ayman A. O. Younes, Amnah Mohammed Alsuhaibani, Moamen S. Refat, Abdel Majid A. Adam, Mohamed Y. El-Sayed, Kareem A. Asla
Summary: Eight polymer-metal complexes were synthesized through complexation of divalent Mn(II), Ni(II), Co(II), and Cu(II) metal ions with modified polystyrene-alt-(maleic anhydride) (PSMAP and PSMAM) ligands. The structures of the complexes were characterized using magnetic moment susceptibility, conductance measurements, FT-IR spectroscopy, UV-VIS, TGA, and SEM. The complexes exhibited non-electrolytic behavior based on conductance measurements, and the polymer ligands acted as neutral bidentate NO ligands. The complexes showed octahedral geometry based on their electronic spectra and magnetic properties, and were more thermally stable than the ligands. SEM and TEM provided information on the surface structure and particle size of the complexes.
Article
Crystallography
Sadaf Mutahir, Muhammad Asim Khan, Ahmed M. M. Naglah, Mohamed A. A. Al-Omar, Abdulrahman A. A. Almehizia, Bader Huwaimel, Amr S. S. Abouzied, Amirah Senaitan Alharbi, Moamen S. S. Refat
Summary: One of the biggest challenges in contemporary medicine is cancer. New treatment approaches are needed due to the difficulties and prolonged nature of current therapies, as well as the increasing resistance of cancer cells. In this study, ten triazine sulfonamide derivatives were examined for their potential in cancer treatment. Through in silico docking analysis, it was found that these compounds showed promising binding affinities to receptors involved in cancer development and metastasis. In addition, ADME experiments supported the drug similarity of these compounds, and MEP calculations provided insight into their interactions.
Article
Crystallography
Sadaf Mutahir, Fakhira Yaqoob, Muhammad Asim Khan, Amnah Mohammed Alsuhaibani, Amr S. Abouzied, Moamen S. Refat, Bader Huwaimel
Summary: A new bentonite clay composite was synthesized and tested for the removal of methylene blue (MB) from wastewater. Various spectroscopic techniques were used to characterize its efficacy. The results showed that the modification significantly increased the adsorption capacity, with a maximum of 258 mg/g achieved at pH 11. The pseudo-second-order model best described the sorption process, and the Langmuir isotherm model confirmed the monolayer adsorption mechanism. This study demonstrated the potential of the bentonite-SB adsorbent for MB removal from wastewaters.
Article
Crystallography
Ayman A. O. Younes, Abdel Majid A. Adam, Moamen S. Refat, Asma S. Al-Wasidi, Abdulrahman A. Almehizia, Mohamed A. Al-Omar, Ahmed M. Naglah, Abdulrahman M. Al-Obaid, Hamad M. Alkahtani, Ahmad J. Obaidullah, Mohamed Y. El-Sayed, Kareem A. Asla
Summary: Three new transition-metal complexes were synthesized by refluxing azodicarbonamide (ADCA) with nickel(II), copper(II), and zinc(II) solutions in a mixture of 50% (v/v) methanol and water. FT-IR analysis indicated a bi-dentate chelation through the N-azo and O-carbonyl groups in all complexes. The optical band gaps of the complexes were within the range of highly effective photovoltaic materials, suggesting their potential as semiconductors.
Article
Multidisciplinary Sciences
Samar Y. Al-Nami, Ahmed Hameed, Omer A. Azher, Nasser A. Alamrani, Enas Aljuhani, Hana M. Abumelha, Nashwa M. El-Metwaly
Summary: In this study, a novel TIC voltammetric sensor was constructed and its electroanalytical applications were discussed. The sensor, which integrated working carbon paste electrodes with zeolite nanostructures, exhibited efficient electrocatalytic activity towards the oxidation of TIC molecule. Through optimization of the measuring conditions, an irreversible oxidation peak of TIC was observed at 0.954 V. The electrochemical behavior and molecular orbital calculations confirmed the proposed oxidation mechanism. Calibration curves showed good linearity for TIC concentration ranging from 8.8 to 1665 ng mL(-1) with low LOD and LOQ values. The introduced TIC voltammetric sensor demonstrated improved performance in terms of reproducibility and operational lifetime. It could also accurately determine TIC in the presence of degradation outcomes and interferents. The proposed voltammetric approach provided a sensitive and reliable method for the determination of TIC in biological fluids and pharmaceutical samples, in agreement with spectrophotometric measurements.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Kholood Alkhamis, Nada M. Alatawi, Amerah Alsoliemy, Jihan Qurban, Arwa Alharbi, Mohamed E. Khalifa, Rania Zaky, Nashwa M. El-Metwaly
Summary: In this study, a thiosemicarbazone derivative was synthesized and coordinated with Cd(II), Co(II), and Ni(II) ions to form corresponding complexes. Spectral and quantum calculations confirmed the neutral bidentate mode of bonding via C=S and C=N groups. The ligand exhibited excellent antibacterial activity and genotoxicity, and showed good absorption, distribution, metabolism, and excretion properties. Molecular docking experiments indicated its interaction with protease enzyme and DNA-polymerase.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Spectroscopy
Zh. E. Ozbekova, A. A. Abdyldaev, A. A. Kulmyrzaev
Summary: This study compared two drying methods for cow and yak muscles, finding that freeze drying caused less discoloration. Additionally, analysis of fluorescence spectra allowed for accurate prediction of chemical composition and color characteristics of the muscles.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Leo Mandic, Ivan Ljubic, Iva Dzeba
Summary: In this study, a combined experimental and computational approach was used to investigate the photoexcitation and photodegradation mechanisms of Doxazosin (DOX). The results provide valuable insights into the primary events following the photoexcitation of DOX and its potential applications.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Xiufeng Wang, Yao Jin, Wenhui Ai, Siqi Wang, Zhiqing Zhang, Ting Zhou, Fang Wang, Guodong Zhang
Summary: This study successfully synthesized near infrared fluorescence Ag2S quantum dots (QDs) and developed a dual-mode sensor for sulfide anion using the excellent oxidase-like characteristics of manganese dioxide (MnO2) nanosheets. The sensor showed a wider detection range, higher sensitivity, and shorter reaction time, making it suitable for highly selective detection of sulfide in different concentration ranges.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yafei Li, Yanming Ma, Chuantao Zheng, Di Yu, Lien Hu, Shuo Yang, Fang Song, Yadan Li, Shuanghai Liu, Zhanrui Zhang, Yu Zhang, Yiding Wang, Frank K. Tittel
Summary: To effectively monitor gas explosion and coal spontaneous combustion in coal mine, an intrinsically safe and explosion-proof dual-gas sensor system was developed for methane (CH4) and carbon monoxide (CO) measurement. The system achieved different measurement ranges using laser scanning and gas cells, and improved stability and accuracy through gas pre-treatment and temperature compensation algorithm.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Pei-Rong Chen, Li-Kang Chu
Summary: In this study, the hydrates of glyoxal were investigated using infrared absorption spectrometry. The results showed that at low concentrations, glyoxal mainly exists as monomeric dihydrate. These findings provide suitable detection windows for further research on the roles of glyoxal and its hydrates in atmospheric and aerosol chemistry, as well as the relevant reaction kinetics.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Nichole O'Neill, Thamires A. Lima, Fabio Furlan Ferreira, Nicolas J. Alvarez, Reinhard Schweitzer-Stenner
Summary: This study determines the main fibril axis of GHG gel-forming fibrils using various techniques and compares the results with simulated data. The analysis suggests that the hydrophobic xz-surfaces of GHG fibrils could be a good target for the adsorption of hydrophobic drugs.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Mengyuan Liu, Hanchuang Zhu, Yikun Fang, Caiyun Liu, Xinke Li, Xiaohui Zhang, Lixue Ma, Kun Wang, Miaohui Yu, Wenlong Sheng, Baocun Zhu
Summary: ABHS is an efficient fluorescent probe that can accurately and sensitively detect Al3+ with strong resistance to interference. It also demonstrates excellent detection and imaging capabilities in complex real samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Ahmed S. El-Shafie, Evana Rahman, Yasser Gadelhak, Rehab Mahmoud, Marwa El-Azary
Summary: The recycling of waste mandarin peels into biochar (MRBC) has been used as a high performance and cost-effective adsorbent for treating polluted wastewater effluents. Batch adsorption studies were conducted to analyze the adsorption competency of MRBC on two dyes, methylene blue (MB) and basic fuchsin (BF), either in individual solutions or binary combinations. The results showed that MRBC was capable of effectively removing a high percentage of both dyes. However, the adsorption capacity decreased when the dyes were combined. The cost estimation of MRBC production and wastewater treatment indicated that both were relatively low.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Anindita Bhatta, Jahnabi Upadhyaya, Dipak Chamlagai, Lincoln Dkhar, Pynskhemborlang T. Phanrang, Mohan Rao Kollipara, Sivaprasad Mitra
Summary: Derivatives of thiazole-pyrazole fused benzo-coumarin compounds were synthesized and their photophysical properties were investigated. The synthesized coumarin compounds showed potential as therapeutic agents for Alzheimer's disease, inhibiting acetylcholinesterase activity. The presence of human serum albumin was found to affect the inhibition activity.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yongwei Duan, Quancheng Liu, Yiju Zhu, Qi Zhang, Xiaohui Duan, Hu Deng, Liping Shang
Summary: In this study, the phase transition of CL-20 was observed using terahertz spectroscopy, and quantum chemical calculations were employed to analyze the vibrations. The results indicated changes in the vibrations of CL-20 before and after phase transition.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yuefeng Gao, Sai Xu, Baojiu Chen
Summary: This study synthesized Cs2NaInCl6 nanocrystals co-doped with Sb3+ and Tb3+ ions as probes for copper ions detection in lubricating oil. The introduction of Sb3+ effectively reduced the band gap of the host material and enabled energy transfer pathway for Tb3+ emission. The doped Tb3+ ions resulted in the suppression of emission due to electron transfer. The Cs2NaInCl6: 2.5 %Sb3+, 40 %Tb3+ NCs exhibited superior sensitivity and selectivity for copper ions detection.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yu Liu, Yue Zhang, Changyao Liu, Ce Wang, Baocai Xu, Li Zhao
Summary: A highly sensitive detection platform for heparin was developed using a cationic fluorescent dye (cresyl violet acetate) as a fluorescence probe. The platform demonstrated high selectivity towards heparin and achieved detection in both HEPES solution and serum.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Lopamudra Roy, Nivedita Pan, Susmita Mondal, Ria Ghosh, Md. Nur Hasan, Neha Bhattacharyya, Soumendra Singh, Kallol Bhattacharyya, Arpita Chattopadhyay, Samir Kumar Pal
Summary: The study focuses on the interaction between reactive oxygen species (ROS) and a spectroscopic probe called Rose Bengal (RB), encapsulated in nanoscopic sodium dodecyl sulphate (SDS) micelles and entrapped in microscopic nylon 66 solid matrix. The research demonstrates efficient interaction between ROS and RB-SDS, and investigates the mechanism of hydroxyl radicals generation. Based on these findings, a prototype device utilizing RB embedded in a nylon thin film for quantification of ROS in extracellular fluids and food materials was developed.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Xiaosong Sun, Qihao Cui, Wenyue Dong, Qian Duan, Teng Fei
Summary: Conjugated porous polymers (CPPs) are promising sensing materials and their application in aqueous media is limited. In this study, we synthesized CPPs with porous structure and prepared nanoparticles, enabling efficient photoluminescence sensing of nitroaromatic explosives in aqueous phase.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Maria Cristina Caggiani, Germana Barone, Paolo Mazzoleni
Summary: Raman spectroscopy is commonly used for studying glassy materials in cultural heritage, but it is more difficult to interpret the spectra and apply the technique with portable instruments. In contrast, diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) can be used in archaeometric investigations as it is portable and non-invasive. However, there is limited application of this technique to historical glasses. This exploratory work demonstrates the potential of DRIFTS, in combination with portable X-ray Fluorescence (pXRF) and EDS microanalyses, for studying the composition and alteration of glass samples in cultural heritage.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)