Article
Chemistry, Physical
R. Bhavani, N. Kanagathara, M. K. Marchewka, J. Janczak
Summary: The current research investigates the structural and spectroscopic characterization of the products formed in the aqueous solution of hydrazine and maleic acid. Both experimental and theoretical methods are used to analyze the structure and vibrational spectra. The study also explores the molecule's charge transfer and nonlinear attributes.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Materials Science, Ceramics
Faping Li, Lisheng Liu, Zheming Yang, Shan Li
Summary: The study showed that the incorporation of 0.1% functionalized MWCNTs had the optimal influence on fluidity and mechanical behavior. Geopolymers with 0.1% functionalized MWCNTs experienced increased slump diameters and improved compressive and bending strengths compared to the reference geopolymer matrix.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Faping Li, Yiyan Lu, Zhenzhen Liu, Li Shan
Summary: The carbonation resistance of high ductility fly ash-based geopolymer was studied through accelerated carbonation experiment. The addition of modified MWCNTs and PVA fibers improved the carbonation resistance of the geopolymer at both micron and nanoscale. Under natural carbonation conditions, a reverse-diffusion phenomenon was observed, and the pH value of the carbonized zone increased from 8.1 to 11.5, indicating a significant improvement in carbonation resistance.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
N. Kanagathara, F. MaryAnjalin, V. Ragavendran, D. Dhanasekaran, R. Usha, R. Gowri Shankar Rao, M. K. Marchewka
Summary: This study investigated the structure and properties of aniline with arsenic acid molecular complex, revealing charge transfer and intermolecular interactions. Various analyses and calculations were performed on the compound, laying a foundation for further research.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Biochemistry & Molecular Biology
Lin Lin, Shuangxi Peng, Ce Shi, Changzhu Li, Zichun Hua, Haiying Cui
Summary: This study prepared edible films using cassava starch and sodium carboxymethyl cellulose as basic raw materials and apple polyphenol as biologically active components. The addition of apple polyphenol increased the flexibility and barrier ability of the film. The microstructure analysis showed hydrogen bonds formed between apple polyphenol, cassava starch, and sodium carboxymethyl cellulose, improving the crystallinity and compactness of the film. Additionally, the film demonstrated antioxidant potential in chicken preservation.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Materials Science, Ceramics
Salah M. El-Bahy, Javaria Arshad, Sana Munir, Khadija Chaudhary, Dalal Alhashmialameer, Diana Rakhmawaty Eddy, Muhammad Farooq Warsi, Muhammad Shahid
Summary: Bimetallic oxide BiSbO4 is a promising photocatalyst for environmental remediation, showing efficient degradation capabilities. XRD, SEM, and FT-IR techniques were employed to analyze the synthesized material.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
G. Sridevi, R. R. Saravanan, S. Gunasekaran
Summary: This study reported the synthesis and characterization of (E)-N'-(3-ethoxy-4-hydroxybenzylidene)isonicotinohydrazide (3E4HBINH) using techniques such as single crystal X-ray crystallography, FT-IR, DFT, MEP, UV-Vis, molecular docking, and ADME properties. The structure of 3E4HBINH belongs to the monoclinic system with space group P21/c. 3E4HBINH was found to interact well with the catalytic part of human HMG-CoA reductase based on small molecule docking studies. The calculated vibrational frequencies, molecular electrostatic potential, and optimized geometry of 3E4HBINH showed good agreement with experimental values.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Analytical
Y. Gomathy, A. Chandrasekaran, M. Aravinthraj, J. Udayaseelan
Summary: The mineralogical analysis of archaeological pottery sherds from the Kundureddiyur archaeological site in Tamil Nadu, India revealed the presence of quartz, calcite, kaolinite, magnetite, and hematite minerals. XRD and FTIR characterization studies provided insights into the firing conditions and temperatures reached during manufacturing, with all samples fired below 900°C. EDS analysis confirmed the firing temperature by identifying major elements in the pottery samples.
MICROCHEMICAL JOURNAL
(2021)
Article
Environmental Sciences
Parthasarathy Surya, Arumugam Sundaramanickam, Ajith Nithin, Parthasarathy Iswarya
Summary: Synthetic plastics have become hazardous wastes, posing a threat to environmental health, so alternatives are needed. This study aimed to prepare corn starch-based bioplastics using fish scales as an alternative to synthetic plastics. Different bioplastic films containing various percentages of fish scale powder and corn starch were prepared and analyzed for their properties. The mixture of fish scale powder and corn starch powder in the ratio of 1:3 yielded the best results, making it a viable alternative to synthetic plastics.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
A. A. Menazea, Hala A. Ibrahium, Nasser S. Awwad, Moustapha Eid Moustapha, M. O. Farea, Majed A. Bajaber
Summary: Polymer mixtures were used to create PEO/CS/Fe3O4 nanocomposites with good electrical characteristics and conductivity, by producing Fe3O4 nanoparticles through laser ablation.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Construction & Building Technology
Anoop Kallamalayil Nassar, Parthiban Kathirvel
Summary: This research proposes a novel method to develop an activator for one-part geopolymer binders in order to overcome the sustainability issues related to conventional sodium silicate. The developed activator, produced using a thermo-mechano-chemical technique, enhances the mechanical strength of geopolymers and offers similar workability to Portland cement.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Biochemical Research Methods
Signe Vahur, Lisett Kiudorv, Peeter Somelar, Jan-Michael Cayme, Mark Dennis Chico Retrato, Rady Jazmin Remigio, Varun Sharma, Ester Oras, Ivo Leito
Summary: A universal method for quantitative analysis of clay components using ATR-FT-IR spectroscopy combined with PLS regression technique has been developed and tested on a large calibration set covering various natural clay sources and archaeological artefacts. The method proved to be quick, easy to use, and able to quantify the contents of 7 main classes of minerals in different clays with an acceptable level of accuracy.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Materials Science, Ceramics
W. Mhaira, A. Agnaou, R. Essalim, F. Mauvy, M. Zamama, M. Alga, A. Ammar
Summary: Partial substitution of copper by antimony in Bi4V1.8Cu0.2O10.7 compounds resulted in the formation of solid solution Bi4V1.8Cu0.2-xSbxO10.7+3x/2. The doping of Sb5+ affected the electrical conductivity and band gap of the material, as revealed by electrochemical impedance spectroscopy and DRS spectra.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Applied
Zhongjie Zheng, Li Yang, Yunpeng Yang, Luji Li, Baofeng Lin, Lihua Fu, Chuanhui Xu
Summary: In this paper, a flexible humidity sensor based on aldehyde-modified sodium carboxymethyl starch (ACMS), carboxylated styrene-butadiene rubber (XSBR), and Ag nanoflakes is fabricated. The ACMS acts as a reducing agent and has better dispersibility in the aqueous phase. The composite film shows high strength and stretchability, and the sensor exhibits a rapid response to humidity change.
CARBOHYDRATE POLYMERS
(2023)
Article
Biochemistry & Molecular Biology
Lin Lin, Shuangxi Peng, Xiaochen Chen, Changzhu Li, Haiying Cui
Summary: Cassava starch/sodium carboxymethyl cellulose (CC) was used as a substrate to create a multipurpose food packaging film by adding caffeic acid@silica nanoparticles (C@SNPs). The C@SNPs had an encapsulation rate of 84.7 +/- 0.97% for caffeic acid. SEM pictures showed that the nanoparticles were well dispersed throughout the film and had good compatibility with other polymers. The C@SCC5:1 film exhibited the best mechanical and oxygen barrier qualities, with a tensile strength increase from 7.17 MPa to 15.44 MPa.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Materials Science, Composites
Mateusz Barczewski, Magdalena Zdanowicz, Olga Mysiukiewicz, Monika Dobrzynska-Mizera, Beata Dudziec
Summary: In this study, a nucleating system composed of DMDBS and phPOSS was used to modify iPP, and oriented films with different drawdown ratios were prepared. Results showed that the proposed nucleating system provided films with superior mechanical and optical properties, along with high orientation ability.
PLASTICS RUBBER AND COMPOSITES
(2023)
Article
Chemistry, Physical
Adrian Krzysztof Antosik, Karolina Mozelewska, Magdalena Zdanowicz, Konrad Gziut, Piotr Miadlicki
Summary: In this study, organophilized montmorillonites (OMMT) with different quaternary ammonium compounds (QAC) were used as fillers in modified silicone pressure-sensitive adhesives (Si-PSA). The chemical structure of QAC affected the d-spacing of OMMT, as analyzed by TGA and XRD techniques. The new self-adhesive materials based on the prepared Si-PSA compositions with OMMT showed improved thermal resistance up to 225 degrees C.
Article
Chemistry, Multidisciplinary
Magdalena Zdanowicz
Summary: In this study, deep eutectic solvents (DESs) with different urea (U) contents were prepared and used as plasticizers for potato-starch. The influence of different DES compositions on the physicochemical properties of thermoplastic starch (TPS) was investigated. The results showed that increasing the U content led to higher phase-transition temperatures and lower thermal stability. Additionally, higher U content resulted in higher elongation at break and a highly amorphous structure in the TPS.
APPLIED SCIENCES-BASEL
(2023)
Article
Biochemistry & Molecular Biology
Magdalena Zdanowicz, Marta Rokosa, Magdalena Pieczykolan, Adrian Krzysztof Antosik, Justyna Chudecka, Malgorzata Mikiciuk
Summary: The aim of this study was to plasticize corn starch using two selected urea-rich plasticizers: choline chloride (CC):U or betaine (B):U eutectic mixtures, with the addition of spent coffee grounds as a filler. The materials were characterized using various tests and a study on biodegradation and remaining nitrogen content in soil was conducted. The results showed that the materials had improved mechanical properties when the coffee filler was added and had a good processability. The materials disappeared in soil within approximately 70 days and did not exhibit any toxic effects on plants.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Physical
Michal Pyzalski, Agnieszka Sujak, Karol Durczak, Pawel Murzyn, Tomasz Brylewski, Maciej Sitarz
Summary: This paper investigates the biological degradation of a tricalcium aluminate (C(3)A) phase treated with reactive media from the agricultural industry. The phase composition and microstructure of the samples were characterized using various techniques. The results showed that the phase composition of the synthetic tricalcium aluminate preparations changed depending on the corrosion exposure conditions. The main crystalline phases formed were catoite and hydrocalumite, along with secondary crystallisation of calcium carbonates. The presence of aluminium hydroxides was also observed. These findings contribute to the development of bio-corrosion-resistant cements for bioenergetics.
Article
Chemistry, Physical
Beata Grabowska, Sylwia Cukrowicz, Karolina Kaczmarska, Sylwia Zymankowska-Kumon, Artur Bobrowski, Bozena Tyliszczak, Natalia Maria Mrowka
Summary: A new type of organobentonite foundry binder composed of a composite of bentonite and poly(acrylic acid) was found to be thermally stable and environmentally friendly.
Article
Chemistry, Physical
Artur Bobrowski, Karolina Kaczmarska, Dariusz Drozynski, Faustyna Wozniak, Michal Deren, Beata Grabowska, Sylwia Zymankowska-Kumon, Michal Szucki
Summary: This article compares the properties of sand cores made with 3D printing technology and conventional mixing and compaction method. The study demonstrates that 3D printed sand cores can be used as a substitute for solid cores to reduce the amount of binder used.
Article
Chemistry, Physical
Artur Bobrowski, Faustyna Wozniak, Sylwia Zymankowska-Kumon, Karolina Kaczmarska, Beata Grabowska, Michal Deren, Robert Zuchlinski
Summary: This study compares the gas generation of 3D-printed cores made from furfuryl resin using binder-jetting technology in foundries. The research investigates the impact of thermal degradation of the binder on gas emission levels and gaseous defects. The results show that the emitted gas volume depends on the core sand components and binder type, with conventional methods emitting the least gases.
Article
Chemistry, Physical
Beata Grabowska, Sylwia Cukrowicz, Artur Bobrowski, Dariusz Drozynski, Sylwia Zymankowska-Kumon, Karolina Kaczmarska, Bozena Tyliszczak, Alena Pribulova
Summary: This study presents a series of studies on the production of organobentonite and its use as a matrix grain-binding material in casting moulding sand. Shungite, a new carbon additive, was introduced into the moulding sand composition. Technological and strength properties of the green sand bond with organobentonite and shungite as a new lustrous carbon carrier were determined. The positive effect of shungite on the quality and quantity of gaseous products generated from the moulding sand and its reduced environmental impact were confirmed.
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)
