Article
Polymer Science
Ahmed G. S. Al-Azzawi, Elham M. A. Dannoun, Shujahadeen B. Aziz, Ahmed Iraqi, Sameerah Al-Saeedi, Muaffaq M. Nofal, Ary R. Murad
Summary: This study investigates the effect of ethynylene or ethynylene-thiophene spacers on the band gap of alternating polymers. Two novel copolymers were prepared using the Sonogashira coupling reaction. The optical, electrochemical and thermal properties of the resulting polymers were compared. The introduction of acetylene linkers reduces steric hindrance and leads to more planar structures, resulting in red-shifted absorption maxima and lower band gaps.
Review
Chemistry, Multidisciplinary
Andrew Kim, Imre Varga, Arindam Adhikari, Rajkumar Patel
Summary: Layered double hydroxides (LDHs) have promising potential for use in electrochemical and optical sensors due to their excellent catalytic properties, facile synthesis strategies, tunable morphology, and versatile hosting ability. LDH-based sensors offer affordable alternatives to traditional precious-metal-based sensors, with enhanced sensitivity and selectivity.
Article
Polymer Science
Karolina Cichon, Irena I. Bak-Sypien, Malgorzata Basko, Bartlomiej Kost
Summary: New functionalized lactide copolymers with controllable number of reactive groups were synthesized. The copolymers had chemically modifiable sites in the backbone and the degradability varied with the nature of acetal unit. Cyclic acetals with different functionalities were synthesized and used for cationic copolymerization with lactide to obtain copolyesters with variable acetal unit contents. The copolymers' structure and molar masses were investigated, and the post-modification ability of the functionalized copolymers was proven.
Review
Nanoscience & Nanotechnology
Zeeshan Ahmad Khan, Paul Jung-Soo Hong, Christina Hayoung Lee, Yonggeun Hong
Summary: In recent years, researchers have focused on developing novel electrochemical and optical detection tools for sensitive and selective analysis of tryptophan and melatonin, utilizing new surface modifications, microfabrication techniques, and diverse nanomaterials. These technologies have shown superior performance and promising applications in detecting these important molecules.
INTERNATIONAL JOURNAL OF NANOMEDICINE
(2021)
Review
Chemistry, Applied
Yufeng Sun, Geoffrey I. N. Waterhouse, Xuguang Qiao, Jianbo Xiao, Zhixiang Xu
Summary: Chloramphenicol is a widely used antibiotic for sick animals, but its accumulation in the human body can cause irreversible anemia and toxicity. Therefore, the development of analytical techniques for the rapid detection of chloramphenicol in animal products is necessary. This review summarizes the recent applications of various nanomaterials in the development of electrochemical and optical sensors for chloramphenicol detection.
Article
Electrochemistry
Xuyang Li, Xinpeng Yin, Jun Li, Bo Yuan, Chunyu Xiang, Peikun Zou, Limin Wang
Summary: Through-hole copper deposition technology is crucial for PCBs in the electronic industry. An anthraquinone-based quaternary ammonium salt was synthesized and functionalized as a promising leveler for efficient copper electrodeposition. Experimental and theoretical results demonstrated that it exhibits excellent copper deposition inhibition and electrode adsorption capacity. Practical tests confirmed its high through-hole filling and levelling performance in PCB plating.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Inorganic & Nuclear
Angus A. Gillespie, Max Roemer, David Jago, Alexandre N. Sobolev, Gareth L. Nealon, Peter R. Spackman, Stephen A. Moggach, George A. Koutsantonis
Summary: Functionalising organic molecular photoswitches with metal complexes can alter and enhance their switching states, providing a promising basis for innovative smart molecular materials and molecular electronic devices. In this study, we synthesized and characterized mono- and bimetallic half-sandwich ruthenium and iron complexes functionalised with alkynyl dihydropyrenes (DHP). The introduction of the metal alkynyl moiety allowed access to additional redox and protonation states. However, the presence of an additional metal alkynyl moiety inhibited observable photochromic switching.
DALTON TRANSACTIONS
(2023)
Review
Chemistry, Analytical
Federico Vivaldi, Pietro Salvo, Noemi Poma, Andrea Bonini, Denise Biagini, Lorenzo Del Noce, Bernardo Melai, Fabio Lisi, Fabio Di Francesco
Summary: Despite its long history, pH measurement is still being studied for enhancing sensor performance. The traditional glass electrode's fragility and calibration requirements are leading researchers to explore alternative devices and materials for pH sensing. This review covers recent optical, electrochemical, and transistor-based sensors as part of ongoing scientific efforts in this field.
Article
Engineering, Electrical & Electronic
Yongkang Han, Xuerong Zai, Yubin Fu
Summary: The electric field response of carbon fiber sensors in sea water can be adjusted by modifying the molecules or groups on their surface. In this study, high performance carbon fiber electrodes with different oxygen-containing functional groups were prepared and their electric field response and electrochemical performances were investigated. The results showed that the oxidation and reduction processes altered the dominant contents of carbonyl, hydroxyl, and carboxyl groups, leading to different effects on the electrode potential stability, distortion rate of electric field response curves, sensitivity to weak electric fields, specific capacitance, and charge transfer resistance.
IEEE SENSORS JOURNAL
(2022)
Review
Environmental Sciences
Zeynab Khorablou, Faezeh Shahdost-fard, Habib Razmi, Mehmet Lutfi Yola, Hassan Karimi-Maleh
Summary: This study provides a brief overview of optical and electrochemical sensors used in MAMP detection to date. It investigates how various receptors with engineering nanomaterials have been utilized to develop novel approaches for measuring MAMP. The fundamental concepts of optical and electrochemical recognition assays involving nanomaterials and their relevant MAMP sensing applications have been comprehensively covered, along with discussions on challenges, opportunities, and future outlooks in the field.
Article
Chemistry, Physical
Keerthika Kumarasamy, Tamiloli Devendhiran, Wei-Jyun Chien, Mei-Ching Lin, Selva Kumar Ramasamy, Ya-Fan Liao
Summary: A new benzimidazole-based fluorescence sensor was synthesized and fully studied. The sensor exhibited a highly selective complexing ability towards Cu2+ and could be used as a reversible sensor with good sensitivity and selectivity for the detection of Cu2+ ions in a semi-aqueous solvent system.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Polymer Science
Istvan Janossy, Tibor Toth-Katona
Summary: In this study, the researchers summarise their findings on light-induced orientational phenomena at liquid crystal-polymer interfaces. They discovered that the efficiency of photoalignment varies depending on the structure of the liquid crystal molecules and the type of mesophase. These observations highlight the importance of the mutual influence between the polymer and the liquid crystal in light-induced processes.
Article
Chemistry, Physical
Fei Hu, Jinhe Wei, Xiong Shen, Lin Chen, Zhongming Wang, Xin Peng, Chenglong Lv, Qiuyun Ouyang
Summary: Bi/Ti3C2Tx composites were synthesized and used to enhance the optical and electrical properties of organic glasses. The Bi/Ti3C2Tx/PMMA organic glasses exhibited excellent nonlinear optical properties, particularly enhanced reverse saturable absorption and self-defocusing effects. Additionally, Bi/Ti3C2Tx showed promising electrochemical performance as an electrode material for energy storage systems.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Biochemistry & Molecular Biology
Kuangguo Yan, Haiquan Chen, Chenjie Zhu, Zhao Ke, Dongwu Li, Mengxia Wang, Fengna Dai, Youhai Yu
Summary: Two novel electrochromic aromatic polyimides (TPA-BIA-PI and TPA-BIB-PI) were synthesized through a two-step polymerization process. The films of these polyimides showed reversible color change and exhibited potential application as electrochromic materials.
Article
Polymer Science
Zhoufeng Wang, Junwei Hu, Bolin Wang, Yingying Liu, Xiubo Long
Summary: A series of novel copolyarylates containing phenol red units in the backbone were synthesized, which showed improved mechanical properties, thermal stability, and transparency.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Environmental Sciences
Chatthai Kaewtong, Suchana Wanich, Banchob Wanno, Thawatchai Tuntulani, Buncha Pulpoka
Summary: A highly sensitive and selective optical chemosensor for determination of Au3+ was prepared by covalent immobilization of rhodamine ethylenediamine on agarose gel, which showed remarkable color change and fluorescence enhancement.
ENVIRONMENTAL TECHNOLOGY
(2022)
Article
Crystallography
Piangkwan Jansukra, Worawat Wattanathana, Tanwawan Duangthongyou, Suttipong Wannapaiboon, Apisit Songsasean, Songwut Suramitr, Thawatchai Tuntulani, C. Scott Browning, Boontana Wannalerse
Summary: Compound 1, 2-Chloro-N-(2,4-dinitrophenyl) acetamide, was synthesized and characterized using various methods such as H-1 and C-13 NMR spectroscopy, ESI-MS, X-ray crystallography, and elemental analysis. The crystal structure of compound 1 revealed the presence of intramolecular N-H···O hydrogen bonding and intermolecular C-H···O interactions. Compound 1 exhibited solvatochromic effects in different solvents, with time-dependent DFT calculations suggesting deprotonation in polar solvents like DMF.
JOURNAL OF CHEMICAL CRYSTALLOGRAPHY
(2021)
Article
Chemistry, Multidisciplinary
Songtham Ruangchaithaweesuk, Pattraporn Srirattanasakunsuk, Chutima Poomuang, Amornrat Kanokworrakarn, Thawatchai Tuntulani
Summary: A colorimetric assay for ascorbic acid (AA) based on poly(methacrylic acid)-stabilized silver nanoclusters (PMAA-AgNCs) was developed, showing a linear working concentration range of 0.25-100 µM and a detection limit of 95 nM. The sensor was successfully applied to determine AA concentration in fruit juice and vitamin C tablet samples, providing highly accurate results.
Article
Chemistry, Analytical
Supacha Wirojsaengthong, Dumrongsak Aryuwananon, Wanlapa Aeungmaitrepirom, Buncha Pulpoka, Thawatchai Tuntulani
Summary: A highly sensitive colorimetric paper-based optode for thiocyanate determination in urine samples was developed, with optimized conditions yielding high selectivity and sensitivity, and successful application in detecting thiocyanate in urine samples from non-smokers and smokers. The sensor is simple, low-cost, portable, and easy to use without the need for complicated instruments.
Review
Chemistry, Multidisciplinary
Methasit Juthathan, Teera Chantarojsiri, Thawatchai Tuntulani, Pannee Leeladee
Summary: The development of CO2RR electrocatalysts is of great significance in mitigating climate change and addressing environmental issues. Single-atom catalysts, as potential CO2 reduction catalysts, exhibit atomic-level and molecular-level modulations, which have the potential to improve selectivity and efficiency.
CHEMISTRY-AN ASIAN JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Pattira Suktanarak, Pannee Leeladee, Thawatchai Tuntulani
Summary: In the presence of Cu(ClO4)(2), a Cu(II) complex containing an aniline moiety underwent electron transfer and oxidative ligand cleavage, leading to the formation of a new species that did not correspond to the original ligand. Additionally, the reaction resulted in the growth of organic fractions and the detection of Cu(tpa).
BULLETIN OF THE KOREAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Wandee Rakrai, Chanukorn Tabtimsai, Thawatchai Tuntulani, Buncha Pulpoka, Vithaya Ruangpornvisuti, Chatthai Kaewtong, Banchob Wanno
Summary: A highly selective nanosensor, CNT-RB, was successfully designed and synthesized for metal ion sensing. The complexation abilities and interactions between CNT-RB and metal ions including Cu3+, Hg3+, Al3+, and Au3+ ions were investigated using DFT calculations. Experimental results showed that CNT-RB displayed high selectivity and sensitivity for Au3+ ion.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Environmental Sciences
Chatthai Kaewtong, Banchob Wanno, Wandee Rakrai, Audchara Saenkham, Sanguansak Sriphalang, Datchanee Pattavarakorn, Thawatchai Tuntulani, Buncha Pulpoka
Summary: Researchers have developed a colorimetric chemosensor array platform of polydiacetylene combined with rhodamine B, which can be used for sensitive detection of Au3+ ions in environmental and biological applications, showing high sensitivity and selectivity.
ENVIRONMENTAL TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Jantira Chimlert, Pattira Suktanarak, Nukorn Plainpan, Mantana Paokhan, Thawatchai Tuntulani, Pannee Leeladee
Summary: The copper-catalyzed cycloalkane oxidation using H2O2 as the oxidant was studied under mild conditions. Various factors affecting the catalytic activity of different copper catalysts were elucidated, including the geometry of the copper complex and coordinated anions. The in-situ generated copper(II) complex with trigonal bipyramidal geometry showed higher yields in the cyclohexane oxidation compared to other Cu2+ species.
Article
Chemistry, Inorganic & Nuclear
Methasit Juthathan, Teera Chantarojsiri, Kittipong Chainok, Teera Butburee, Patchanita Thamyongkit, Thawatchai Tuntulani, Pannee Leeladee
Summary: New hybrid catalysts based on molecularly dispersed nickel complexes on N-doped graphene were developed for electrochemical CO2 reduction (ECR). The nickel complexes with N-H groups showed current enhancement in the presence of CO2, while the absence of N-H groups resulted in no change. All three nickel complexes were successfully immobilized on nitrogen-doped graphene (NG) and exhibited satisfactory CO2-to-CO reduction. The N-H moiety from the ligand was found to be less important in the heterogeneous aqueous system.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Organic
Chawanakorn Kongsak, Natthiti Chiangraeng, Puracheth Rithchumpon, Piyarat Nimmanpipug, Puttinan Meepowpan, Thawatchai Tuntulani, Praput Thavornyutikarn
Summary: Turn-on fluorescent chemosensors based on an anthraquinone moiety have been successfully synthesized and can detect trace levels of Zn(II) and Cd(II) ions by enhancing fluorescence through a turn-on photoinduced electron transfer mechanism.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Nutchanikan Phiromphu, Methasit Juthathan, Pattira Suktanarak, Mongkol Sukwattanasinitt, Thawatchai Tuntulani, Pannee Leeladee
Summary: A copper-catalysed ATRA reaction in water under eco-friendly conditions was developed, and a simple system with high catalytic efficiency and selectivity can be used under ambient atmosphere.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Nutchanikan Phiromphu, Methasit Juthathan, Pattira Suktanarak, Mongkol Sukwattanasinitt, Thawatchai Tuntulani, Pannee Leeladee
Summary: Simple and green conditions for copper-catalysed ATRA reactions in water have been developed. By adding a biocompatible surfactant, the reaction can be efficiently catalysed under mild conditions.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Organic
Chawanakorn Kongsak, Natthiti Chiangraeng, Puracheth Rithchumpon, Piyarat Nimmanpipug, Puttinan Meepowpan, Thawatchai Tuntulani, Praput Thavornyutikarn
Summary: Turn-on fluorescent chemosensors based on an anthraquinone moiety, N,N'-(9,10-dioxo-9,10-dihydroanthracene-1,8-diyl)bis(2-(bis(pyridin-2-ylmethyl)amino)acetamide) (1) and N,N'-(9,10-dioxo-9,10-dihydroanthracene-2,6-diyl)bis(2-(bis(pyridin-2-ylmethyl)amino)acetamide) (2), were successfully synthesized and their structures were characterized using various spectroscopic techniques. The chemosensor 1 displayed a significant fluorescence enhancement and high reproducibility for the detection of trace levels of Zn(II) and Cd(II) ions, with low detection limit values.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2023)
Article
Chemistry, Analytical
Suphakan Thanomsak, Chanunporn Insombat, Phutita Chaiyo, Thawatchai Tuntulani, Wanwisa Janrungroatsakul
Summary: A novel paper-based sensor using graphene quantum dots as a colorimetric probe for Au3+ determination has been developed. The sensor shows high selectivity and sensitivity, and provides accurate results for detecting Au3+ in real water samples.
ANALYTICAL METHODS
(2021)
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.
