Article
Polymer Science
Kirill Puchnin, Dmitriy Ryazantsev, Vitaliy Grudtsov, Yaroslav Golubev, Alexander Kuznetsov
Summary: New modified off-stoichiometry thiol-enes polymers (OSTE-MS polymers) were developed by introducing mercaptosilane into the polymer mixture, enabling the polymer to bond with silicon wafers without modifying the wafer surface. Optimized composition for creating 3D polymer structures on a chip was selected and successful fabrication of well type and microfluidic system structures on silicon chips was achieved based on OSTE-MS polymers.
Article
Polymer Science
Kirill Puchnin, Dmitriy Ryazantsev, Egor Latipov, Vitaliy Grudtsov, Alexander Kuznetsov
Summary: The development of new silane-containing polymers, called OSTE-AS polymers, is important for the advancement of microelectronic and biomedical industries. These polymers can bond to silicon wafers without pretreatment of the surface by an adhesive. By optimizing the polymer composition, the researchers achieved maximum hardness, maximum tensile strength, and good bonding with the silicon wafers. The optimized OSTE-AS polymer was studied for various properties, and the possibility of creating microfluidic systems using these polymers and silicon wafers was demonstrated.
Article
Materials Science, Multidisciplinary
Sonatan Das, Akanksha Singh, V. Ramgopal Rao, Tapanendu Kundu
Summary: The study focuses on the development of a semiconducting functional polymer with ferroelectric behavior by tuning the stoichiometry ratio of the moieties in order to create a new type of polymer photodetector. The device exhibits photocurrent generation and ferroelectric polarization, making it a promising candidate for single polymer-based field-effect transistors and functional photonic materials.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Analytical
Yuqian Yang, Zhiqing Xiao, Lexin Sun, Zitao Feng, Zejingqiu Chen, Weijin Guo
Summary: In this study, a novel protocol was developed to fabricate silk fibroin/off-stoichiometry thiol-ene (OSTE) hybrid microneedle array patches. Silk fibroin, a natural biomaterial, was used as a drug carrier. The drug, insulin, was dissolved in a silk fibroin solution and deposited on a microneedle mold. The resulting silk fibroin needle tips were formed on an OSTE base through replica molding. The silk fibroin concentration had minimal influence on the length of the needle tips, and the mechanical strength of the microneedles was tested.
Article
Chemistry, Multidisciplinary
Qianqian Wang, Hao Cui, Xiaolin Wang, Ziyu Hu, Peipei Tao, Mingyang Li, Jianlong Wang, Yaping Tang, Hong Xu, Xiangming He
Summary: This article introduces a click lithography strategy that utilizes the rapid thiol-ene click reaction to achieve efficient nanofabrication. The approach enables high-contrast patterning of metal-containing nanoclusters under extremely low deep-ultraviolet exposure dose. It also demonstrates the potential of this method in high-resolution patterning by achieving 45 nm dense patterns at a low dose using electron beam lithography.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Polymer Science
Logan D. Dugas, William D. Walker, Rahul Shankar, Keely S. Hoppmeyer, Travis L. Thornell, Sarah E. Morgan, Robson F. Storey, Derek L. Patton, Yoan C. Simon
Summary: This work describes a photopolymerized thiol-ene-based vitrimer that combines stability, healability, and reprocessability. The introduction of excess primary amines enables the degradation and regeneration of the vitrimer. Photopolymerization provides unique control over the network topology, facilitating further investigation of vitrimer properties.
MACROMOLECULAR RAPID COMMUNICATIONS
(2022)
Article
Chemistry, Applied
L. Pezzana, M. Sangermano
Summary: A new fully biobased formulation was UV cured to create a polymer network suitable for coating applications. The functional monomers used were lipoic acid and isosorbide diallyl for thiol-ene chemistry. The network's cross-linking was confirmed through ATR-FTIR analysis, and its thermal performance was characterized using DSC. Complete coating characterization was performed, showing suitable performance for coating applications.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Chemistry, Physical
Michael N. Martinez, Alex G. Smith, Linsey M. Nowack, Binhua Lin, Stuart A. Rice
Summary: The study investigates the influence of solvent vapor on the interaction between ligated nanoparticles, particularly observing the condensation of water molecules on the ligand shell of the nanoparticles and how it affects their interaction. The results show a reversible cyclic change in Young's modulus of the monolayer, which correlates with the presence of water clusters bridging the AuNPs and affecting their interaction. The findings from molecular-dynamics simulations suggest that macroscopic analyses of water drop-deformable surface interactions provide insights and qualitatively correct predictions for the observed phenomena.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Polymer Science
Nicholas J. Bongiardina, Shafer M. Soars, Maciej Podgorski, Christopher N. Bowman
Summary: This study evaluated radical-disulfide exchange reactions in thiol-ene-disulfide networks using different thiol and disulfide containing monomers. The results show that the stress relaxation rate in these networks can be controlled by changing the thiol-disulfide stoichiometry or the disulfide type. The combination of different thiol and disulfide monomers also influences the polymerization rate of the thiol-ene reaction.
Article
Polymer Science
Cuong Minh Quoc Le, Loic Vidal, Marc Schmutz, Abraham Chemtob
Summary: This study investigates the preparation of complex polymer colloids through miniemulsion polymerization, focusing on factors such as limited solubility and Ostwald ripening that affect droplet stability. The addition of a radical scavenger can delay polymerization, allowing for the determination of batch photopolymerization kinetics, molecular weight progress, and particle size distribution. The study emphasizes how initiator solubility, droplet size, and monomer solubility impact droplet nucleation.
Article
Chemistry, Physical
Jiarui Yue, Jun Nie, Xiaoqun Zhu
Summary: Thiol-ene polymerization is significant in photopolymerization, particularly in emerging industries. However, its research is hindered by poor storage stability and unclear spontaneous reaction mechanism. This study explored different ene structures to determine their effects on storage stability and mechanism of spontaneous reaction. The thiol-divinylbenzene (DVB) system was found to be stable due to moderate electron cloud density and conjugated structure. Additionally, it exhibited excellent photopolymerization efficiency and higher sulfur content compared to the thiol-acrylate system, indicating its potential and value for applications.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Polymer Science
Ivan Djordjevic, Gautama Wicaksono, Juhi Singh, Manisha Singh, Elizabeth G. Ellis, Maher A. Alraddadi, Andrew P. Dove, Terry W. J. Steele
Summary: In this study, thiol/ene-based resorbable elastomers were combined with a carbene bioadhesive to create a dual crosslinked, three-component hybrid network. The resulting hybrid bioadhesive displayed both tunable dynamic moduli and shear adhesion strength, making it a promising candidate for various biomedical applications.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Chemistry, Applied
Polyssena Renzi, Marco Rusconi, Giovanni Ghigo, Annamaria Deagostino
Summary: A catalyst-free protocol for the purple light-mediated anti-Markovnikov functionalization of alkenes with thiols is presented. The generation of thiyl radical depends on the formation of a key photo-active complex. Over 30 thioether products were obtained, showing tolerance towards different functional groups and scalability up to 5 mmol of alkene. Two different reaction conditions have been developed, with the solvent and thiol amounts being varied. Water can be used as an alternative solvent to dichloromethane, increasing the sustainability of the entire process.
ADVANCED SYNTHESIS & CATALYSIS
(2023)
Article
Nanoscience & Nanotechnology
Kezi Cheng, Alex Chortos, Jennifer A. Lewis, David R. Clarke
Summary: Covalent adaptive networks combine the advantages of cross-linked elastomers and dynamic bonding in a single system. A simple one-pot method to prepare thiol-ene elastomers that exhibit reversible photoinduced switching from an elastomeric gel to fluid state is demonstrated. This behavior can be generalized to different composition and chemistries and allows for self-healing, remolding, and reversible adhesion.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Polymer Science
Petra Utrosa, Spela Gradisar, Ozgun Can Onder, Ema Zagar, David Pahovnik
Summary: Synthetic polypeptides and aliphatic polyesters are promising materials in biomedical applications due to their degradability and biocompatibility. This study investigates the preparation and properties of porous synthetic polypeptide-polyester materials and successfully prepares bilayered polyHIPE materials with different hierarchical structures.
Article
Chemistry, Analytical
Oya Aydin Urucu, Nilgun Yildiz, Esra Duygu Aracier
Summary: In this study, a novel and eco-friendly switchable solvent-based liquid phase microextraction (SS-LPME) method was developed to detect Fe (III) in water samples. By optimizing the experimental conditions, a linear calibration curve and a low detection limit were achieved. The method demonstrated successful applicability on water samples and wastewater reference material.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Oya Aydin Urucu, Esra Duygu Aracier
Summary: The method of switchable solvent-based liquid phase microextraction combined with flame atomic absorption spectrometry for the determination of Cd(II) ions in environmental samples was studied. By optimizing important parameters, the linear range, limit of detection, preconcentration factor, and relative standard deviation under optimal experimental conditions were obtained. The environmentally-friendly method was successfully applied to analyze the cadmium contents of environmental water samples.
JOURNAL OF AOAC INTERNATIONAL
(2021)
Article
Materials Science, Paper & Wood
Asli Beyler Cigil, Oya Aydin Urucu, Hatice Birtane, Memet Vezir Kahraman
Summary: In this study, an eco-friendly and simple polymeric adsorbent was synthesized using a thiol-ene click reaction with cellulose acetate butyrate (CAB) and cysteine (Cys) to remove silver (I) ions efficiently from water samples. The adsorbent showed selective removal of Ag (I) ions with good performance, making it suitable for practical applications in real water samples.
Article
Polymer Science
Esra Duygu Aracier, Oya Aydin Urucu, Emrah Cakmakci
Summary: The study aimed to prepare an efficient adsorbent for toxic dye removal, which can be reused multiple times and fits the Langmuir adsorption model.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Energy & Fuels
Ayse Gul Yetgin, Ozan Ali Dundar, Emrah cakmakci, Ozgur Arar
Summary: Cellulose modified with N-methyl-glucamine is an effective sorbent for the removal of boron, with an optimum sorbent dose of 0.2 g/25 mL, equilibrium reached within 60 min, maximum sorption capacity of 4.7 mg B/g, exothermic sorption process, and consistent removal rate over 5 cycles of sorption/regeneration experiments.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Archaeology
Yildiz Cakmak, Emrah Cakmakci, Nilhan Kayaman Apohan, Recep Karadag
Summary: The development and characterization of bio-based gels for the cleaning of historical artworks were investigated. Thiolene photocured organogels were designed by combining different bio-based monomers. The chemical structures, thermal properties, and solvent swelling behavior of the gels were studied. The effectiveness of the gels in removing varnish from historical artworks was evaluated, and one specific gel was found to be effective without leaving any residue.
JOURNAL OF CULTURAL HERITAGE
(2022)
Article
Materials Science, Multidisciplinary
Hatice Birtane, Oya Aydin Urucu, Nilgun Yildiz, Asli Beyler Cigil, Memet Vezir Kahraman
Summary: A carbon nanotube cellulose-based UV-curable nanocomposite was prepared and used as an adsorbent to selectively separate Au (III) ions from water. The adsorbent exhibited good adsorption performance and achieved high recovery efficiency of Au (III) ions in practical application.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Polymer Science
Ozge Ozukanar, Emrah Cakmakci, Ozgun Daglar, Hakan Durmaz, Volkan Kumbaraci
Summary: The use of modern chemical routes and innovative material designs have provided smart solutions to problems in materials science and opened up new avenues for future research. This study utilized two click reactions to prepare a flame retardant with P and N-containing elements, and investigated its effects on the properties of aliphatic polyurethane acrylate. The synthesized monomer led to changes in mechanical, thermal, and flame retardancy properties of the material.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Karen Cangul, Emrah Cakmakci, Ozgun Daglar, Ufuk Saim Gunay, Gurkan Hizal, Umit Tunca, Hakan Durmaz
Summary: Pressure from environmental NGOs and the public is driving research on innovative and renewable polymers and additives. A recent focus has been on bio-based green plasticizers that can be covalently attached to replace toxic phthalate-based plasticizers. In this study, azide-functionalized soybean oil derivative (AzSBO) was prepared and investigated as a plasticizer. The results showed that AzSBO improved the thermal, mechanical, and solvent absorption properties of the polymer.
Article
Chemistry, Multidisciplinary
Busra Celik, Dilhan Kandemir, Serter Luleburgaz, Emrah Cakmakci, Ufuk Saim Gunay, Volkan Kumbaraci, Hakan Durmaz
Summary: A versatile and novel bio-based platform was developed by reacting castor oil with propiolic acid for performing amino-yne click reactions. The platform enabled easy and catalyst-free click reactions at room temperature within 5 minutes. Thermosets prepared using the platform showed improved thermal and mechanical properties.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Analytical
Esra Duygu Aracier, Ece Kok Yetimoglu, Oya Aydin Urucu
Summary: In recent years, there has been increased interest in green solvents, which are environmentally friendly, easy to prepare, and biodegradable, as well as their applications in chemistry. This study developed a new and easy method for preconcentrating Pb (II) ions based on a deep eutectic solvent and compatible with green chemistry principles. The method was optimized for various parameters and showed a high preconcentration factor and low limits of detection and quantification. The accuracy of the method was confirmed by analyzing certified reference wastewater samples.
ANALYTICAL SCIENCES
(2023)
Article
Polymer Science
Gokhan Sagdic, Ozgun Daglar, Emrah Cakmakci, Volkan Findik, Safiye Sag Erdem, Umit Tunca, Ufuk Saim Gunay, Hakan Durmaz
Summary: A novel organocatalyst-mediated phospha-Michael reaction (OCPMR) was developed for the addition of phosphorus nucleophiles to electron-deficient alkynes. The reaction allowed for fast double-addition of phosphorous compounds to triple bonds of alkynes, with aromatic phosphorous species reacting within 5 minutes at room temperature. The method was used to synthesize double-phosphorylated allyl-functional monomers and thermoset materials, as well as to functionalize electron-deficient triple bonds with P-H bond-bearing compounds, offering a straightforward approach for phosphorus-containing monomer synthesis and polymer post-functionalization.
Article
Materials Science, Multidisciplinary
Oya Aydin Urucu, Sabahattin Deniz, Nilgun Kahraman, Emrah Cakmakci
Summary: Hydrogels containing bio-based building blocks have been widely used as adsorbents for toxic dye removal. In this study, gelatin-containing semi-IPN hydrogels with various amounts of itaconic acid-based protic ionic liquids (PILs) were prepared and utilized for the removal of anionic textile dyes. The hydrogels exhibited significant swelling in water and displayed maximum adsorption capacities under acidic conditions.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Polymer Science
Emrah Cakmakci
Summary: The utilization of thiol-ene reactions for polymer synthesis and modification is an area of intense attention within click chemistry. Thiol-ene click reactions, especially when triggered by light, are widely used in the fabrication of coatings. Thiol-ene photopolymerization (TEP) is a powerful tool for the preparation of coatings. This review summarizes the existing literature on flame retardant TEP systems and reactive phosphorous monomers used in TEP, highlighting the studies on thermosets.
JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
(2023)
Article
Chemistry, Analytical
Michel Rocha Baqueta, Augusto Cesar Costa-Santos, Ana Paula Rebellato, Gisele Marcondes Luz, Juliana Azevedo Lima Pallone, Federico Marini, Alexsandro Lara Teixeira, Douglas N. Rutledge, Patricia Valderrama
Summary: This study reports the essential element composition of new Brazilian Canephora coffees and applies chemometric tools for analysis. The results demonstrate the suitability of this method for origin and species discrimination based on the inorganic fraction of coffee.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Mengjie Li, Jiapeng Wang, You Zhou, Yang Chen, Lingying Xia
Summary: A novel photoelectrochemical biosensor based on gold nanoparticles and specific structures was developed for highly sensitive detection of mercury ion. The multiple sandwich structures hindered electron supply and light harvesting, resulting in a weakened PEC signal, while the specific structures extinguished the PEC signal, enabling quantitative detection of Hg2+. The sensor exhibited high selectivity and stability, with potential applications in environmental detection, biological analysis, and medical research.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Mohamed A. Korany, Rasha M. Youssef, Marwa A. A. Ragab, Mostafa A. Afify
Summary: A stability-indicating fit-for-purpose method was developed for the determination of HC, TL, and PS in syrup dosage form. The method successfully separated CL from THY and quantified the analytes using HPLC-DAD. The robustness of the method was assessed through statistical analysis and self-validation.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Lingling Lin, Minyu Li, Ping Li, Chenqing Ye, Huanglong Zhuang, Shaohuang Weng, Feng Chen
Summary: This study developed a highly sensitive and selective electrochemical sensor for simultaneous detection of dopamine and uric acid. The sensor exhibited excellent anti-interference and stability, and could accurately measure dopamine and uric acid in human urine samples.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Peifang Chen, Caiyun Jiang, Zhouping Wang, Hong-zhen Lian, Xiaoyuan Ma
Summary: In this study, a high-performance SERS-active aptasensor was successfully developed for the quantitative analysis of AFB1 in cereal grains, which is of great significance in the field of food safety.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
E. Abas, C. Marina-Montes, C. Perez-Marin, J. Puimedon, J. Anzano
Summary: This study conducted a comprehensive measurement of natural and anthropogenic radionuclides in soil, water, and air in different locations around Deception Island in Antarctica. The results revealed significant levels of 210Pb and anthropogenic 137Cs in soil samples near old human settlements and facilities, as well as detectable levels of 137Cs and 60Co in water samples from old hunting areas. The findings also suggested potential resuspension processes based on higher-than-expected air quality results.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Joao Franciso Allochio, Nayara A. dos Santos, Nathalia dos S. Conceicao, Clara S. D. Baptista, Keyller B. Borges, Valdemar Lacerda Jr, Wanderson Roma
Summary: This study developed a fiber spray ionization mass spectrometry (FSI-MS) method, which shows great potential in detecting illicit drugs. Compared with paper spray ionization mass spectrometry (PSI-MS), FSI-MS demonstrates higher sensitivity in COC detection.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Dina A. Ahmed, Ola G. Hussein, Mamdouh R. Rezk, Mohamed Abdelkawy, Yasmin Rostom
Summary: The main goal of this study was to develop two green chromatographic techniques, HPLC and TLC, for the determination of alcaftadine (ALF) in pharmaceutical formulation and biological samples. The developed HPLC technique showed high efficiency and minimal environmental impact, successfully identifying ALF in the presence of its degradate. The TLC method provided a stability indicating study for ALF and was determined to be safe, green, and eco-friendly.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Abdullah Taner Bisgin
Summary: A green, speedy, and handy method for separation and determination of four commonly used food colorants was established using vortex assisted sequential-simultaneous liquid phase micro-extraction (VA-SS-LPME). The method does not require any instrumental chromatographic techniques. The procedure includes sequential separation steps using different extractants and simultaneous UV-vis spectrophotometric determination steps. The method is environmentally friendly and applicable for determination of colorants in food and pharmaceuticals.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Yifan Zhang, Tong Zhang, Wenjing Ba, Li Liu, Yuan Rao, Xiaodan Zhang, Hanhan Zhang, Xiu Jin
Summary: This paper proposes a novel spectral transfer modelling method based on neural network architecture searching for the asymptomatic prediction of Akizuki pear cork spot disorder. The experiments show that the model by this method is more effective, achieving an accuracy of 82.61%.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Krzysztof Greda, Maja Welna, Anna Szymczycha-Madeja, Pawel Pohl
Summary: For the first time, a dispersive micro-solid phase extraction (D-mu SPE) based on graphene oxide was used for the ultrasensitive determination of Cd. With this method, Cd can be efficiently extracted from a mixture of alkali and alkaline earth metals without the need for an elution step. The combination of D-mu SPE and SAGD OES significantly reduces matrix effects and improves the tolerance of Cd to alkali metals. The method shows simplicity in the measurement system and the commercially available nanosorbent used.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
P. K. Fathima Anjila, G. R. Tharani, Anand Sundaramoorthy, Venkat Kumar Shanmugam, Karthikeyan Subramani, Shanmugavel Chinnathambi, Ganesh N. Pandian, Vimala Raghavan, Andrews Nirmala Grace, Singaravelu Ganesan, Mangaiyarkarasi Rajendiran
Summary: This work proposes a rapid and sensitive spectroscopic method for detecting melamine in food products using rare-earth Terbium-doped Graphene Quantum Dots (Tb-GQDs) synthesized by microwave and simple chemical conjugation methods. The synthesized Tb-GQDs show a spherical shape with a size of approximately 6 nm and a quantum yield of 52%. The maximum detection limit for melamine concentration in milk and milk products is found to be 0.31 μM. The dual emitting Tb-GQDs provide a sensitive and effective platform for real-time detection of melamine in food samples, particularly in milk, and show promising potential in the food industry.
MICROCHEMICAL JOURNAL
(2024)
Review
Chemistry, Analytical
Piyush Dey, Mandeep Kaur, Akhil Khajuria, Dilmeet Kaur, Manpreet Singh, Hema Kumari Alajangi, Neha Singla, Gurpal Singh, Ravi Pratap Barnwal
Summary: Environmental issues, such as the uncontrolled release of dangerous pollutants, have significant impacts on human health. Traditional methods for detecting pollutants require specialized personnel and equipment, but nanotechnology has improved the performance of biosensors. This article discusses the use of nanotechnology in pollutant detection and the associated techniques.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Sa Dong, Qiuyun Shi, Lingjun Guan, Yulong Wang, Pengyan Liu, Cunzheng Zhang, Jianguo Feng
Summary: In this study, a highly sensitive indirect competitive chemiluminescence enzyme immunoassay (icCLEIA) method was developed for the determination of sodium pentachlorophenolate (PCP-Na) and its metabolite pentachlorophenol (PCP). The method showed high specificity and affinity with a detection limit of 0.0032 ng/mL for PCP-Na and 0.0192 ng/mL for PCP. The method had no cross reaction with other chlorophenols compounds except for PCP. The average recoveries in chicken, pork and fish samples were 81.3-105.8% with low coefficient of variation (CV).
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Palaniappan Ilayaraja, Murugan Manivannan, Paramasivam Parthiban
Summary: Nirmatrelvir, an antiviral drug used for the treatment of COVID-19, has been recommended by the World Health Organization. We developed an optimized analytical method for the quantification of Nirmatrelvir and its products, with high sensitivity and a wide linear range. The method also meets the requirements for greenness evaluation.
MICROCHEMICAL JOURNAL
(2024)
