Article
Chemistry, Multidisciplinary
Zijing Li, Bin Huang, Yuan Wang, Wenbo Yuan, Yijing Wu, Ruitao Yu, Guichuan Xing, Taotao Zou, Youtian Tao
Summary: 2RDNTPA, a novel acceptor-donor-acceptor type molecule, demonstrates excellent optical properties suitable for fluorescence imaging of living cancer cells.
Article
Physics, Multidisciplinary
Silvia Innocenti, Marilena Ricci, Giancarlo Lanterna, Raffaella Fontana, Jana Striova, Maurizio Becucci
Summary: Identification of red lakes in painting layers by enhanced Raman spectroscopy is proposed in this study, utilizing the solubility and recrystallization of red lakes in hydrogel to isolate the lake from the painted matrix for identification purposes. This analytical method has been found effective in identifying cochineal and madder lakes, with results compared to experimental data and DFT calculations to define the organometallic complex present. The methodology is tested on aged mock-up panel paintings and historical paintings, supported by reflectance spectra and colorimetric measurements following micro-extraction.
EUROPEAN PHYSICAL JOURNAL PLUS
(2021)
Article
Chemistry, Analytical
Marwa El Badry Mohamed, Eman Yossri Frag, Mohamed Helal El Brawy
Summary: This paper presents a new highly selective and sensitive Cu(II) ions modified carbon paste electrode (MCPE) based on 2-(3phenoxy phenyl) propanoic acid (Fenoprofen (FP)) as a Cu(II) selective modifier. The MCPE has a Nernstian slope of 29.9 ? 0.15 mV decade-1 in the linear range of 1.0 ? 10-6 to 1.0 ? 10-2 mol L-1 and shows high selectivity toward Cu(II) ions.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Jonathan B. Grimm, Ariana N. Tkachuk, Ronak Patel, S. Thomas Hennigan, Alina Gutu, Peng Dong, Valentina Gandin, Anastasia M. Osowski, Katie L. Holland, Zhe J. Liu, Timothy A. Brown, Luke D. Lavis
Summary: Rhodamine dyes are versatile models for developing fluorescent probes. The structure-activity relationships that govern the equilibrium between the colorless lactone and fluorescent zwitterion forms of rhodamines were elucidated using known and novel organic chemistry methods. The study discovered the significant effect of auxochrome substituents on the equilibrium and provided a roadmap for the rational design of improved rhodamine dyes.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Review
Environmental Sciences
Jyotsna Kaushal, Pooja Mahajan, Navjeet Kaur
Summary: Phytoremediation using ornamental plants is an innovative and eco-friendly technique for remediating textile effluents and other organic compound contaminations. Ornamental plants, with their aesthetic value, have the potential to be an ideal choice for phytoremediation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Agricultural Engineering
Yongchang Sun, Tingting Wang, Caohui Han, Lu Bai, Xiaoyin Sun
Summary: The lignin-based magnetic biochar (LMB) was prepared using a simple solvothermal method. Fe3O4 spheres were loaded onto the lignin-based biochar. LMB exhibited efficient removal of Cr(VI) and Congo red (CR) through the adsorption of biochar and the catalytic/reduction of Fe3O4.
BIORESOURCE TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Quintashia D. Wilson, Ellen M. Sletten
Summary: A general platform has been developed to create visible-to-NIR fluorogenic fluorophores by introducing a simple cyclization event into cyanine dyes, addressing the growing demand for specific fluorescent probes in high sensitivity and super-resolution imaging experiments.
Article
Materials Science, Ceramics
Sylvain Tome, Dzoujo T. Hermann, Victor O. Shikuku, Stephen Otieno
Summary: In this study, two geopolymers were prepared using volcanic ash as the precursor material, through acid activation and alkaline activation methods. The alkaline activated geopolymer exhibited higher adsorption capacity, faster adsorption kinetics, and better thermodynamic properties compared to the acid activated geopolymer, suggesting its superior performance as a sorbent for dye removal.
CERAMICS INTERNATIONAL
(2021)
Article
Environmental Sciences
Fuad Ameen, Turki M. Dawoud, Fatimah Alshehrei, Khawla Alsamhary, Abobakr Almansob
Summary: This study evaluated the degradation ability of indigenous Aspergillus strains on azo dyes in wastewater, finding that these strains can effectively degrade azo dyes under optimal conditions.
Article
Chemistry, Analytical
Volodymyr Pauk, Martina Krejci, Karel Lemr
Summary: Unified chromatography with mass spectrometric detection was used to analyze a wide range of food dyes, demonstrating its potential for comprehensive multiclass analysis. The method showed stable retention times, sufficient limits of detection, and a wide linear range, making it suitable for real-life sample analysis and ensuring food safety. Comparisons with other liquid chromatography procedures highlighted the promising performance of unified chromatography in this field.
ANALYTICA CHIMICA ACTA
(2021)
Article
Environmental Sciences
Ozan Eskikaya, Melis Gun, Raouf Bouchareb, Zeynep Bilici, Nadir Dizge, Rameshprabu Ramaraj, Deepanraj Balakrishnan
Summary: One of the most important environmental issues today is the inadequate treatment of wastewater containing dyes. Photocatalytic based wastewater treatment processes have gained attention as a new, economically viable, and promising approach. This study investigated the photocatalytic activity of eggshell-CaO produced from waste chicken eggshells for decolorization of Safranin and Reactive Red 180 dyes.
Article
Chemistry, Physical
Dominika Sciezynska, Dominika Bury, Michal Jakubczak, Jan Bogacki, Agnieszka Jastrzebska, Piotr Marcinowski
Summary: Dyes are harmful and long-lasting pollutants in water, and their effective removal is necessary to prevent environmental and social problems. In this study, a UV/ZVI/H2O2 process was successfully applied to decompose two organic dyes, AM E123 and AM ACID. The efficiency of dye removal reached 85.5% and 80.85% for AM E123 and AM ACID, respectively. The catalyst exhibited high stability and could be reused without prior preparation, reducing costs.
Article
Agricultural Engineering
Ying-Jie Yu, Chen-Yu Li, Ren-Cheng Tang
Summary: The one-step dyeing and finishing of tussah fiber using plant extracts and acid dyes can simultaneously impart colorful shades, antioxidant activity, antibacterial activity, and UV protection capability. The stability of tannic acid, baicalin, and their mixtures with acid dyes was discussed, and the colors and functionalities of dyed and finished tussah silk were evaluated. The study shows that one-step dyeing and finishing with acid dyes and plant extracts are feasible for tussah silk, but caution is needed for pale dyeing.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Chemistry, Multidisciplinary
Ti Jia, Qiuhong Wang, Ming Xu, Wei Yuan, Wei Feng, Fuyou Li
Summary: This study demonstrates a 3,5-di(p-oxethyl)styryl conjugated BODIPY with high efficiency deep-red upconversion luminescence, as well as water-soluble BODIPY-doped upconversion nanoparticles that enable high-performance bioimaging in vivo at low excitation power density.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Applied
Farouk Zaoui, Bouchra Elhadj Daouadji, Mohammed Beldjilali, Mohammed Hachemaoui, Fatima Zohra Sebba, Adel Mokhtar, Bouhadjar Boukoussa
Summary: A new dendrimer was synthesized from citric acid and sebacoyl chloride through Steglich esterification. It was used as a matrix for the dispersion of copper nanoparticles using classical and ultrasound methods. The nanocomposites obtained were compared in terms of structural, morphological, thermal, antimicrobial, antioxidant, and catalytic reduction properties. The comparison showed that ultrasound method exhibited superiority in catalytic reduction and antioxidant activities, while the classical method had better thermal stability and higher metal content with some cationic oxidation state in the nanocomposites.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Chemistry, Applied
Ebrahim Alipanahpour Dil, Mehrorang Ghaedi, Arash Asfaram, Fatemeh Mehrabi, Ardeshir Shokrollahi, Amir Abbas Matin, Lobat Tayebi
Article
Chemistry, Physical
Mahboobeh Abbasi, Mohammad Mehdi Sabzehmeidani, Mehrorang Ghaedi, Ramin Jannesar, Ardeshir Shokrollahi
Summary: A novel grass-like structured composite membrane was successfully fabricated in this study, showing excellent performance in the removal of malachite green. The adsorption process followed a pseudo second-order kinetic model, with a maximum adsorption capacity of 13.49 mg g-1. Thermodynamic study revealed that the adsorption of malachite green onto the composite membrane was an endothermic process.
APPLIED CLAY SCIENCE
(2021)
Article
Chemistry, Physical
Mahboobeh Abbasi, Mohammad Mehdi Sabzehmeidani, Mehrorang Ghaedi, Ramin Jannesar, Ardeshir Shokrollahi
Summary: In this study, novel CuAl-CLDH/CNT/PVDF400 composites were fabricated and used as adsorbents for dye removal from wastewater. The adsorption efficiency of the composite for Carminic acid was found to be higher, with adsorption kinetics following the intra-particle diffusion model.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Materials Science, Multidisciplinary
Mahboobeh Abbasi, Mohammad Mehdi Sabzehmeidani, Mehrorang Ghaedi, Ramin Jannesar, Ardeshir Shokrollahi
Summary: In this study, a novel leaf coral-like structured composite membrane of copper aluminum layered double hydroxide (Cu-Al LDH) onto polyvinylidene fluoride (PVDF) membrane surface was synthesized using a simple hydrothermal method. The as-prepared composite exhibited higher hydrophilicity and showed effective dye adsorption for Erythrosin B (EB) from aqueous solution. The adsorption kinetics and isotherms of the Cu-Al LDH/PVDF composite for EB were well described by pseudo-second-order and Langmuir models, respectively. The presence of coexisting salts reduced the removal efficiency of EB on the Cu-Al LDH/PVDF composite.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Chemistry, Analytical
Mehdi Sharifi, Ardeshir Shokrollahi, Foroogh Ebrahimi
Summary: In this study, a new nano mesoporous adsorbent MCM-41@SiO2-NH-pydc was successfully synthesized and used for the clean-up, preconcentration and determination of crystal violet and auramine O dyes. The sorbent was characterized and its extraction performance was evaluated. The results showed that MCM-41@SiO2-NH-pydc was a suitable candidate for dispersive solid phase micro extraction (DSPME) and provided advantages of low cost, time-saving and environmental friendliness.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Civil
Saeed Noraee-Nejad, Mohammad Sedghi-Asl, Manosur Parvizi, Ardeshir Shokrollahi
Summary: In this study, inorganic sodium nitrate salt was used as a tracer to identify possible leakage routes in Shahghasem dam. The results indicated that the main pathway of leakage flow was towards the right abutment, possibly due to dissolution and formation of limestone holes and karstification phenomenon. It was concluded that sodium nitrate as a tracer moved through the dam without being adsorbed by clay and silt materials, suggesting its effectiveness for future tracer works.
IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF CIVIL ENGINEERING
(2021)
Article
Biochemical Research Methods
Mohsen Rezaei, H. R. Rajabi, Nasim Bavarsad-Esfandiari, Ardeshir Shokrollahi, Iman Setayeshfar
Summary: In this study, a methyl red molecularly imprinted polymeric (MR-MIP) nanostructure was synthesized and a vortex-assisted dispersive micro-solid phase extraction (VAD-mu SPE) method was developed for the selective preconcentration of methyl red dye from aqueous solutions.
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Sara Miralibozorg, Mohammad Nasiri, Arash Shokrollahi
Summary: Niobium pentoxide and molybdenum trioxide supported on silica nanocatalysts were synthesized and characterized. The performance of these catalysts in the nitration of toluene was investigated, and niobium pentoxide showed better selectivity and stability compared to molybdenum trioxide. This study is of significant importance for improving the yield of para-nitrotoluene.
Article
Materials Science, Multidisciplinary
Zahra Shokouhmandi, Ardeshir Shokrollahi
Summary: In this study, a solid-phase extraction method using a carbon nano onion-polyaniline nanocomposite sorbent was developed for the extraction of residual organic pesticides. Further preconcentration was achieved using dispersive liquid-liquid microextraction. The developed method showed accurate and reliable pesticide determination in samples.
MATERIALS RESEARCH EXPRESS
(2022)
Article
Chemistry, Multidisciplinary
Zahra Shokouhmandi, Ardeshir Shokrollahi
Summary: In this study, dispersive solid-phase extraction (DSPE) with MOF/PPy composite sorbent was used to measure pesticides residual. The developed method showed a wide linear range for most analytes and successfully measured pesticides in real samples.
Article
Chemistry, Analytical
Forough Karami, Ardeshir Shokrollahi
Summary: A green, fast and cheap extraction method based on deep eutectic solvent was developed for the preconcentration of phenylalanine. High performance liquid chromatography (HPLC) was used to determine the amounts of preconcentrated phenylalanine.
CURRENT ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Kamal Azadkish, Ardeshir Shokrollahi
Summary: An ultrasonic-assisted dispersive liquid-liquid microextraction method using a deep eutectic solvent was developed for the simultaneous preconcentration and determination of Sudan orange G (SOG) and Sudan red 7B (SR7B). The optimized method showed low detection limits and wide linear dynamic ranges, with high precision and recovery rates. The applicability of the method was confirmed in various real samples.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Sara Miralibozorg, Mohammad Nasiri, Arash Shokrollahi
Summary: The solvent-free nitration of toluene with N2O4 gas over solid acid catalysts is a green reaction for preparing the mono-nitrotoluene isomers. A titanium dioxide catalyst modified with acetic acid is more efficient than other catalysts. The optimization of reaction conditions yielded high selectivity and conversion rates, and the stability of the catalyst was proven through reusability tests.
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Analytical
Fereshteh Zarghampour, Yadollah Yamini, Ebrahim Alipanahpour Dil, Ardeshir Shokrollahi, Ghazal Javadian
Summary: In this study, a new microfluidic-chip coupled with micro solid phase extraction (mu-SPE) and a RGB detection system was designed for extraction and simultaneous determination of trace amounts of dyes with different acidic-basic properties. The method involved on-chip electromembrane extraction (CEME) of analytes, followed by separation using micro-packed columns and evaluation using RGB colorimetry on a smartphone.
Article
Spectroscopy
Elham Madani-Nejad, Ardeshir Shokrollahi, F. Shahdost-Fard
Summary: In this study, bimetallic nanoparticles consisting of gold as the core and silver as the shell were synthesized and used as a nanoprobe for the detection of fluvoxamine. The physicochemical properties of the nanoparticles were characterized using various techniques. The design of the smartphone-based colorimetric fluvoxamine sensor relied on the hydrolysis of fluvoxamine under alkaline conditions, resulting in color variations in the solution. A linear relationship between the absorption signal and the fluvoxamine concentration was observed, allowing for simple quantification.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Analytical
Gang Qu, Yuxin Zhao, Qiaoli Zhang, Jina Wu, Xiaosen Li, Yang Yang, Shilei Liu
Summary: In this study, magnetic mesoporous materials combined with real-time in situ mass spectrometry were used for the high-throughput detection of hydrolyzed products of organophosphorus nerve agents. The method showed good linearity, low limits of detection and quantification, and high extraction recoveries. The magnetic preparation method used was quick, cost-effective, rugged, and safe. The results demonstrated the potential of this method for rapid and efficient determination of the target analytes in environmental samples.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Anna Hildebrand, Mariam Merchant, Danny O'Hare
Summary: Substandard and falsified artemisinin derivatives in antimalarials have caused significant deaths and economic losses. This study evaluates the feasibility of voltammetric methods for identifying and quantifying artemether. The findings suggest that electrochemical analysis shows promise as a method for artemether identification and quantification.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Marx Osorio Araujo Pereira, Alvaro Ferreira Junior, Edson Silvio Batista Rodrigues, Helena Mulser, Giovanna Nascimento de Mello e Silva, Wallans Torres Pio dos Santos, Eric de Souza Gil
Summary: Brazilian spotted fever (BSF) is a serious and rapidly evolving disease. A new impedimetric immunosensor was developed for rapid diagnosis by measuring specific antibodies in plasma. The sensor demonstrated selectivity and accuracy, and has potential for important applications in diagnostic testing.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Kathrin Schilling, Ronald A. Glabonjat, Olgica Balac, Marta Galvez-Fernandez, Arce Domingo-Relloso, Vesna Slavkovich, Jeff Goldsmith, Miranda R. Jones, Tiffany R. Sanchez, Ana Navas-Acien
Summary: Analysis of trace elements in urine is an important tool for assessing exposures, diagnosing nutritional status, and guiding public health and healthcare intervention. This study provides a sensitive method for analyzing 18 elements in urine samples, using only 100 μL. The results show good accuracy and sensitivity of the method.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Mengya Li, Shijie Liu, Shiliang Guo, Dong Liang, Miaoyun Li, Yaodi Zhu, Lijun Zhao, Jong-Hoon Lee, Gaiming Zhao, Yangyang Ma, Yanxia Liu
Summary: In this study, a magnetic flow device was developed to purify spores in a culture medium system. The device used magnetic nanoparticles to absorb vegetative cells, separating them from the spores. The achieved purity of the collected spores was over 95%. The study also demonstrated a rapid quantitative detection method using Raman spectroscopy.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Wanqiong Liu, Zixuan Wu, Jianwei Peng, Zebin Xu, Yong Liang
Summary: Metal-organic frameworks (MOFs) are effective carriers for molecular imprinting, but their poor dispersibility in aqueous solution is a significant drawback. In this study, we have applied amphiphilic block copolymers and molecularly imprinted technology on MOFs to improve the hydrophilicity of molecularly imprinted fluorescent materials.
ANALYTICAL METHODS
(2024)
