Article
Chemistry, Inorganic & Nuclear
Mamina Bhol, Guilhem Claude, Maximilian Roca Jungfer, Ulrich Abram, Malaichamy Sathiyendiran
Summary: In this study, calix[4]arene-analogous technetium supramolecules and rhenium-based macrocycles were successfully assembled by using specific ligands and starting materials. The structures of these molecules were characterized in detail.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Medicinal
Zoya I. Kazantseva, Igor A. Koshets, Oleksandr O. Trybrat, Oleksandr A. Yesypenko, Vitali I. Kalchenko
Summary: The study investigated the enantiodiscrimination properties of stereomerically pure inherently chiral calix[4]arene acetic acids and their derivatives in liquid and gaseous phases with respect to 1-phenylethylamine stereoisomers using H-1 NMR and QCM techniques. It was found that sensors based on calix[4]arene acetic acids are capable of recognizing R- and S-forms of 1-phenylethylamine in the gaseous phase within a concentration range of 10-400 ppm.
Review
Spectroscopy
Priyanka Kashyap, Payal Sharma, Ritu Gohil, Dushyantsingh Rajpurohit, Divya Mishra, Pranav S. Shrivastav
Summary: In the past two decades, significant progress has been made in the design and development of synthetic receptors for molecular recognition, finding applications in various scientific fields. This review focuses on the advancement of pi-conjugated fluorogenic and chromogenic groups appended to calix[4]arene motifs for the detection and quantitation of Cu2+ ion. The comprehensive account of extended calix[4]arene systems with different linkers highlights their unique design and binding characteristics for the recognition and sensing of Cu2+ ions.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Multidisciplinary
Ru-Qiang Lu, Weize Yuan, Robert G. Croy, John M. Essigmann, Timothy M. Swager
Summary: N-Nitrosamines are commonly found in various sources such as food, drugs, air, water, and soil, posing a significant risk to human health due to their carcinogenicity. This study synthesized two polymers containing calix[4]arene or 4-tert-butylcalix[4]arene tungsten-imido complexes as receptors for N-nitrosodimethylamine (NDMA), providing a sensitive sensor for its detection. The interaction between metallocalix[4]arene monomers/polymers and NDMA was confirmed, and the sensor exhibited high selectivity and low theoretical limit of detection for NDMA.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Analytical
Funda Kus, Cagatay Altinkok, Esra Zayim, Serkan Erdemir, Cihat Tasaltin, Ilke Gurol
Summary: The study focused on the detection of polar and nonpolar volatile organic compounds using novel sensing materials based on gold nanorods and silver nanocubes functionalized with Calix[4]arene. After modification, the sensors exhibited significantly enhanced sensitivity and selectivity towards chloroform and toluene, with sensitivity reaching six to eight times higher than individual responses.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Inorganic & Nuclear
Lucinda R. B. Wilson, Marco Coletta, Mukesh K. Singh, Simon J. Teat, Adam Brookfield, Muralidharan Shanmugam, Eric J. L. McInnes, Stergios Piligkos, Scott J. Dalgarno, Euan K. Brechin
Summary: The reaction of 2,2'-bis-p-Bu-t-calix[4]arene (H8L) with Cu(NO3) (2)center dot 3H(2)O and N-methyldiethanolamine (MedeaH(2)) in a basic dmf/MeOH mixture results in the formation of [Cu-II (16)(L)(2)(Me-dea)(4)(mu(4)-NO3)(2)(mu-OH)(4)(dmf)(3.5)(MeOH)(0.5)(H2O)(2)] (H6L)center dot 16dmf center dot 4H(2)O (4). The metallic skeleton of the compound consists of a tetracapped square prism, [Cu-12], with Cu-II ions housed in the calix[4]arene polyphenolic pockets. Magnetic measurements show antiferromagnetic exchange interactions and a ground state of S = 1, while EPR indicates a large zero-field splitting.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Xu Ying, Zhenhua Zhu, Xiao-Lei Li, Jinkui Tang
Summary: We report two pairs of enantiomers of Co(II)and Zn(II)-based metallacycles constructed by coordination-driven self-assembly between homochiral 1,1 '-bi-2-naphthol-derived ligands featuring two kinds of coordination pockets and transition metal ions. Remarkably, they exhibit calix[4]arene-like topological structures and fascinating chiral cavities, having potential in enantioselective recognition.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Nanoscience & Nanotechnology
Kevin Dedecker, Martin Drobek, Vincent Rouessac, Anne Julbe
Summary: This study compares the adsorption properties and selectivity of two isostructural metal-organic frameworks (MOFs), [Cu(2-pymo)2]n and [Pd(2-pymo)2]n, for linear, cyclic, and aromatic volatile organic compounds (VOCs). Experimental and computational investigations show that the MOF with palladium as the metal center has stronger affinity for aromatic compounds compared to copper. Additionally, the [Pd(2-pymo)2]n MOF exhibits preferential adsorption of benzene over toluene due to steric hindrance effects.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Biochemistry & Molecular Biology
Anton A. Muravev, Alexandra D. Voloshina, Anastasia S. Sapunova, Farida B. Gabdrakhmanova, Oksana A. Lenina, Konstantin A. Petrov, Sergey Shityakov, Ekaterina V. Skorb, Svetlana E. Solovieva, Igor S. Antipin
Summary: In this study, a series of calixarenes derivatized with 3-phenyl-1H-pyrazole units were synthesized and characterized. These compounds showed specific cytotoxicity for M-HeLa cells with low mutagenicity and haemotoxicity. Compound 7b and 7c induced apoptosis in M-HeLa cells through the mitochondrial pathway and arrested the cell cycle at G0/G1 phase. The overexpression of DNA damage markers in pyrazole-treated M-HeLa cells suggested that calixarene pyrazoles target DNA, which was supported by the interactions between calixarenes and ctDNA at the air-water interface.
BIOORGANIC CHEMISTRY
(2023)
Review
Chemistry, Analytical
Darya Klyamer, Dmitry Bonegardt, Tamara Basova
Summary: Research on metal phthalocyanines with fluorine substituents as active layers of gas sensors has gained interest in recent decades, particularly focusing on their application as chemiresistive sensors. The introduction of fluorine substituents has been found to enhance sensitivity to reducing gases and enable some fluorinated phthalocyanine films to exhibit properties of n-type semiconductors.
Article
Biochemistry & Molecular Biology
Vladimir Burilov, Egor Makarov, Diana Mironova, Elza Sultanova, Islamiya Bilyukova, Kevser Akyol, Vladimir Evtugyn, Daut Islamov, Konstantin Usachev, Timur Mukhametzyanov, Svetlana Solovieva, Igor Antipin
Summary: This paper presents the synthesis of new water-soluble calixarene triazoles and investigates their aggregation behavior, as well as their binding and compaction abilities towards DNA. The results suggest that the tetradecyl-substituted calix[4]arene exhibits the best performance in terms of DNA binding and compaction.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Analytical
Anastasiia Shuba, Tatiana Kuchmenko, Ruslan Umarkhanov
Summary: This paper discusses the method of diagnosing pathologies and diseases in humans and animals using electronic noses and emphasizes the importance of miniaturizing devices while maintaining the necessary information for diagnosis. The study shows that using a combination of several sorbents in a single sensor can effectively achieve the miniaturization of gas analysis sensors. Furthermore, the paper verifies through experiments and comparative analysis that sensors with polycomposite coatings can extract maximum information about the qualitative and quantitative composition of the gas phase, and proposes relevant parameters and methods.
Article
Engineering, Environmental
Zehui Li, Yi Yuan, Hao Wu, Xinghui Li, Menglei Yuan, Huaizhang Wang, Xiaoxue Wu, Shuai Liu, Xianming Zheng, Mingjun Kim, Haoyun Zheng, Sadia Rehman, Guangya Jiang, Wangyang Fu, Jingkun Jiang
Summary: Carbon frameworks derived from metal-organic frameworks have been produced as efficient adsorbents for toluene due to their optimal hierarchical porous structure. The CFs derived from ZIF-8 under 1100℃ exhibited the highest adsorption capacity, attributed to their larger specific surface area, newly generated micropores and mesopores, and higher degree of graphitization. These CFs also showed strong hydrophobicity, good selectivity to toluene, and high sensitivity when applied as sensors, providing potential for air pollution abatement.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Sanjeeb Lama, Bong-Gyu Bae, Sivalingam Ramesh, Young-Jun Lee, Namjin Kim, Joo-Hyung Kim
Summary: This study synthesized hybrid composite materials for the detection of chemical warfare agents (CWAs) and evaluated their performance using quartz crystal microbalance (QCM) and surface acoustic wave (SAW) sensors. The findings showed that NGO@MnO2 and NGO@MnO2/PPy demonstrated high sensitivities and repeatability, making them potential candidates for CWA detection.
Article
Chemistry, Analytical
Linjiang Pang, Lu Zhang, Zhenhe Wang, Guoquan Lu, Xia Sun, Jiyu Cheng, Shihao Chen, Guangyu Qi, Xiaoyi Duan, Rui Xu, Wei Chen, Xinghua Lu
Summary: A four-element quartz crystal microbalance (QCM) gas sensor array based on molecularly imprinted polymers (MIPs) and zeolitic imidazolate frameworks (ZIFs) materials was reported for differentiating healthy and sick sweetpotatoes infested with Ceratocystis fimbriata. Volatile organic compounds were selected for detection based on gas chromatography-mass spectrometry (GC-MS) results. Characterization of the materials confirmed their successful preparation. The sensors exhibited excellent sensitivity and selectivity towards target gases. The sensor array, combined with quadratic support vector machine (QSVM) and weighted k-nearest neighbor (WKNN) models, achieved 100% accuracy in classifying sick sweetpotatoes. This study contributes to the development of gas sensor arrays for agri-food quality control and protection.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Organic
Selahattin Bozkurt, Erkan Halay, Mustafa Durmaz, Mustafa Topkafa, Ozgur Ceylan
Summary: A novel calix[4]arene compound was designed with cyanate recognition function, showing high sensitivity and selectivity for cyanate detection in the presence of other anions. This supramolecular method provides a highly adaptive technique for the detection of cyanate and cyanide ions by current international standard methods.
JOURNAL OF HETEROCYCLIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Mustafa Durmaz, Yaser Acikbas, Selahattin Bozkurt, Rifat Capan, Matem Erdogan, Cansu Ozkaya
Summary: A newly synthesized calix[4]arene thiourea derivative was used for host-guest interactions in macrocyclic molecules. Thin films of p-tert-butylcalix[4]arene dithiourea (C[4]-DT) were prepared and characterized for sensing seven different organic vapors. The sensor showed high sensitivity, fast response, and low detection limit, making it a promising alternative for detection of DCM vapor.
Article
Materials Science, Multidisciplinary
Atike Ince Yardimci, Nesli Yagmurcukardes, Mehmet Yagmurcukardes, Inci Capan, Matem Erdogan, Rifat Capan, Ozgur Tarhan, Yaser Acikbas
Summary: In this study, PAN nanofibers obtained by electrospinning were coated on a QCM for gas sensing. The results showed that the PAN nanofibers were sensitive to VOCs, particularly chlorine compounds, and exhibited good reproducibility.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Engineering, Electrical & Electronic
Nesli Yagmurcukardes, Abdullah Bayram, Hasan Aydin, Mehmet Yagmurcukardes, Yaser Acikbas, Francois M. Peeters, Cem Celebi
Summary: The sensitivity of graphene-based sensors to ammonia was improved by etching, and the etched sensors showed higher resistance to humidity.
IEEE SENSORS JOURNAL
(2022)
Correction
Chemistry, Multidisciplinary
Yaser Acikbas
RESEARCH ON CHEMICAL INTERMEDIATES
(2022)
Article
Chemistry, Multidisciplinary
Yaser Acikbas
Summary: This study used quinoline P5 (P5-Q) molecules to produce thin films, which were characterized and analyzed using various techniques. It was found that P5-Q molecules exhibit host-guest interactions with organic vapors, making them potential chemical sensor elements.
RESEARCH ON CHEMICAL INTERMEDIATES
(2022)
Article
Chemistry, Multidisciplinary
S. Bozkurt, M. Durmaz, M. Erdogan, C. Ozkaya Erdogan, R. Capan, Y. Acikbas
Summary: In this study, Calix[4]arene-based materials were explored as potential chemical sensors due to their low cost synthesis and wide range of properties. Thin films of BBTC[4]T were fabricated using the Langmuir-Blodgett technique, and their optical properties and gas sensing abilities were examined. The results showed that BBTC[4]T-based LB films had a thickness per monolayer of 1.23 +/- 0.07 nm and a refractive index of 1.53 +/- 0.05. The fabricated optical sensor showed promising sensing abilities against organic vapours, particularly acetone. The diffusion coefficients of the organic vapours were also calculated to understand the swelling dynamics of the BBTC[4]T-based LB films.
JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY
(2022)
Article
Anatomy & Morphology
Atike Ince Yardimci, Erman Salih Istifli, Yaser Acikbas, Recep Liman, Nesli Yagmucukardes, Selahattin Yilmaz, Ibrahim Hakki Cigerci
Summary: In this study, single-walled carbon nanotubes (SWCNTs) synthesized by the thermal chemical vapor deposition (CVD) method were characterized using various techniques. The results showed that the obtained nanotubes were highly crystalline with an average diameter of 10.15 +/- 3 nm. Assessments of cytotoxicity and genotoxicity on Allium cepa root meristem cells exposed to SWCNTs revealed changes in mitotic phases, chromosomal aberrations, and DNA damage in a concentration-dependent manner. Molecular docking studies also demonstrated strong interactions between SWCNTs and DNA. This study highlights the cytotoxic and genotoxic effects of SWCNTs in A. cepa root meristematic cells, providing valuable insights into nanoparticle toxicology.
MICROSCOPY RESEARCH AND TECHNIQUE
(2022)
Article
Nanoscience & Nanotechnology
Yaser Acikbas, Matem Erdogan, Rifat Capan, Cansu Ozkaya Erdogan, Yasemin Baygu, Nilgun Kabay, Yasar Gok, Gurkan Kucukyildiz
Summary: This study produced phthalocyanine-zinc(II)-based nanothin films and investigated their gas-sensing and optical properties. The results demonstrated that the nanothin films had high chemical stability, thermal stability, and optical performance.
APPLIED NANOSCIENCE
(2022)
Article
Engineering, Electrical & Electronic
Nesli Yagmurcukardes, Abdullah Bayram, Hasan Aydin, Mustafa Can, Serafettin Demic, Yaser Acikbas, Cem Celebi
Summary: In this study, the NH3 sensing capabilities of graphene films were improved by modifying self-assembled monolayers. The modified graphene films showed a two-fold increase in NH3 uptake compared to the unmodified films. This suggests that self-assembled monolayers can enhance NH3 adsorption and improve the detection response.
IEEE SENSORS JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Yasemin Baygu, Inci Capan, Rifat Capan, Matem Erdogan, Yaser Acikbas, Nilgun Kabay, Yasar Gok, Kemal Buyukkabasakal
Summary: A novel phthalonitrile with a 26-member tetraoxadithia macrocycle moiety was synthesized and cyclomerized to obtain a new zinc(II) phthalocyanine. Characterization of the novel phthalocyanine and precursor compounds was conducted using various techniques. Langmuir-Blodgett (LB) thin films were fabricated using the 26-membered phthalocyanine to investigate its gas sensing properties. The sensor parameters and the thickness effect on the gas sensing mechanism were examined using Quartz Crystal Microbalance (QCM) technique. Experimental measurements of QCM kinetic were validated using a nonlinear autoregressive with exogenous input neural network.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Nesli Yagmurcukardes, Atike Ince Yardimci, Mehmet Yagmurcukardes, Inci Capan, Matem Erdogan, Rifat Capan, Yaser Acikbas
Summary: In this study, the sensing characteristics of electrospun polyacrylonitrile (PAN)/polypyrrole (PPy) nanofibers coated quartz crystal microbalance (QCM) were investigated for six different volatile organic compounds (VOCs). The PAN/PPy nanofibers exhibited high sensitivity and selectivity for VOCs sensor applications, especially for dichloromethane.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Alfred Ngenge Tamfu, Yasemin Ispirli Dogac, Ozgur Ceylan, Andreea Botezatu Dediu, Selahattin Bozkurt, Rodica Mihaela Dinica
Summary: Water is essential, but obtaining clean water remains a global challenge. The synthesized hydrated zirconium oxide-alginate materials show efficient removal of pollutants and inhibition of microorganisms. Increasing the alginate content enhances the antimicrobial and antibiofilm effects. This study is important for its environmental friendliness and sustainability, with potential application in water treatment.
JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Organic
Fuying Zhu, Yamei Lin
Summary: In this study, a low-metal iron-supported catalyst (Fe20/NC-Mg) was reported for the efficient synthesis of quinoxaline compounds, using water as a solvent and without additional bases. The synergistic effect of FeNx site and Mg (OH)2 nanorods in the catalyst played a key role in achieving high yields (82-91%) in 16 examples. The gram-level synthesis and reusability of the catalysts after four cycles demonstrated its industrial application potential.
Article
Chemistry, Organic
Mikhail Kozlov, Alexey Tyurin, Andrey Dmitrenok, Vyacheslav Rusak, Aleksander Fedorov, Igor Zavarzin, Yulia Volkova
Summary: This study presents a novel and practical synthesis method for phosphorus-substituted 1,3,4-thiadiazolines using phosphorylthioformic acid hydrazides and ketones. The protocol demonstrates operational simplicity, availability of reagents, and tolerance towards different functional groups.
Article
Chemistry, Organic
Jisna Jose, Thomas Mathew
Summary: 2-Cyclopentenone and its derivatives are highly esteemed synthetic intermediates with exceptional utility in organic synthesis. They are favored structural motifs in numerous pharmaceutical drugs and natural products, highlighting their significance. The review discusses the various methods used to synthesize cyclopentenones from 2016 to 2023.
