Article
Chemistry, Physical
Zeynep Ergoenenc Yavas, Duygu Cevher, Hasan Tore Silis, Ali Cirpan, Oguz Gulseren, Cesare Franchini
Summary: We conducted an experimental and first-principles study to investigate the changes in electrical conductivity properties of polyaniline Emeraldine Salt (ES) form synthesized using two different methods. The ES powders obtained through interfacial synthesis (PANI-I) exhibited higher electrical conductivity compared to the powders obtained through conventional synthesis (PANI-C). The study suggests that PANI-I differs from PANI-C in terms of its localized defect state, which significantly affects its intrinsic conductivity. Additionally, the study compared the bond lengths, dihedral angles, and relative stabilities of different states of the polymer and found that the ES Bipolaron state (ESB) and Polaron state (ESP) may coexist, and increasing the length of the polymer chain does not influence the relative stability between ESB and ESP defect states.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Applied
Konstantin A. Milakin, Udit Acharya, Islam M. Minisy, Doebner Von Tumacder, Zuzana Moravkova, Oumayma Taboubi, Tomas Syrovy, Lucie Syrova, Jiri Pfleger, Patrycja Bober
Summary: Colloidal dispersions of protonated polyaniline were prepared with the presence of phytic acid, leading to larger particle size and better long-term stability. The coatings exhibit different surface properties that can be useful for electrochemical applications.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Pharmacology & Pharmacy
Afrooz Hamideh, Ziyaur Rahman, Sathish Dharani, Tahir Khuroo, Eman M. Mohamed, Mohammad T. H. Nutan, Indra K. Reddy, Mansoor A. Khan
Summary: The study focused on preparing salts of aripiprazole with dicarboxylic acids to enhance the drug's physicochemical properties. The salts showed higher solubility compared to the drug, with APZ-Malonate salt exhibiting the highest solubility. The stability profiles of the salts were similar to that of APZ.
PHARMACEUTICAL DEVELOPMENT AND TECHNOLOGY
(2021)
Article
Environmental Sciences
Zhiquan Liu, Huikang Lin, Yueyue Zheng, Yixuan Feng, Chaoli Shi, Ruoxin Zhu, Xingyao Shen, Yu Han, Hangjun Zhang, Yuchi Zhong
Summary: This study found that exposure to environmentally relevant concentrations of PFOA and PFOS had negative impacts on the immune system of black-spotted frogs. PFOS had a stronger effect on immune indicators compared to PFOA, and both chemicals activated the NF-Kappa B pathway, leading to immunotoxicity.
Article
Multidisciplinary Sciences
Arsalan Ul Haq, Luca Montaina, Francesca Pescosolido, Felicia Carotenuto, Federica Trovalusci, Fabio De Matteis, Emanuela Tamburri, Paolo Di Nardo
Summary: Electrically conductive scaffolds with directional alignment of muscle fibers were fabricated using 3D printing micro-stereolithography. The conductive ink used for printing was made by blending polyethylene glycol diacrylate, Irgacure 819, curcumin, and polyaniline. The obtained scaffolds demonstrated well defined morphology and semi-conducting properties. Cyclic voltammetry analyses detected electroactivity and highlighted ionic diffusion between the polymer and the electrolyte solution. The conductive scaffolds displayed tunable conductivity and provided an optimal environment for cultured mouse cardiac progenitor cells.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Analytical
Jia Qiao, Fei Tao, Guokang Wei, Xiaohui Zhang, Wei Xie, Xin Li, Jianhong Yang
Summary: Aluminum ion batteries (AIBs) are currently gaining attention due to their high capacity, low cost, and safety, but their practical applications are limited due to the lack of suitable cathodes and complex energy storage mechanisms. Polyaniline, a type of conducting polymer, shows promise but has not been extensively studied for AIBs. In this study, emeraldine base polyaniline (PANI) was synthesized and used as a cathode in an Al/PANI cell with a chloroaluminate ionic liquid electrolyte. The PANI cathode exhibited better electrochemical performance, higher discharge specific capacity, and improved capacity retention compared to protonated polyaniline cathodes, due to a novel conversion process and reversible doping of chloroaluminate ions in the PANI-AlCl3 complex. These findings contribute to the development of high-performance AIBs with conducting polymers as cathode materials and provide insights into their charge storage and reaction mechanisms.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Materials Science, Biomaterials
Sita Shrestha, Bishnu Kumar Shrestha, Oh Kwang Joong, Chan Hee Park, Cheol Sang Kim
Summary: The functionalized polyaniline nanobuds show great potential in the development of the cell-substrate interface, enhancing cell transfer ability with their unique structure and electrochemical properties. The sulfonic acid-doped polyaniline nanobuds synthesized with controlled shape/size demonstrate the potential to induce neuronal networks in PC12 cells.
BIOMATERIALS SCIENCE
(2021)
Article
Environmental Sciences
Seung Min Chung, Dong-Gyu Heo, Ju-Hyun Kim, Ji Sung Yoon, Hyoung Woo Lee, Jong-Yeon Kim, Jun Sung Moon, Kyu Chang Won
Summary: This study aimed to investigate the association between serum levels of PFOA and PFOS and diabetes. The results showed that exposure to PFOA and PFOS may have a detrimental effect on blood glucose, with particularly high risk for diabetes in individuals exposed to PFOA.
ENVIRONMENTAL HEALTH
(2022)
Article
Engineering, Environmental
Aiza Farhani Zakaria, Sazlinda Kamaruzaman, Norizah Abdul Rahman, Noorfatimah Yahaya
Summary: This study developed a new hybrid hydrogel adsorbent based on biopolymers for removing PFOS contaminants. The optimal operational variables were found to be 1000 mg of adsorbent dosage, 10 mg/L of PFOS solution concentration, pH 3, and a contact time of 45 min. The adsorbent showed a removal efficiency of 91.6% and could be reused multiple times without a significant decrease in efficiency.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Environmental Sciences
Eulalia Maria Beltran, Carlos Fernandez-Torija, Maria Victoria Pablos, Miguel Angel Porcel, Pilar Garcia-Hortiguela, Miguel Gonzalez-Doncel
Summary: The study found that the uptake and translocation of the three ECs were efficient regardless of the presence of PFOS in both experimental sets. Radish plants showed increased movement of ECs from roots to aerial parts when co-irrigated with PFOS. Despite the efficient accumulation of ECs, the risk to humans from eating the edible parts of these plants grown under soil or soilless conditions was low.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Engineering, Environmental
Wanlong Wu, Zirui Lin, Hua-Yu Shi, Lu Lin, Xianpeng Yang, Yu Song, Xiao-Xia Liu, Xiaoqi Sun
Summary: By tuning ion activities in electrolyte based on Nernst shift, the redox potential of PANI is effectively shifted within the voltage window, allowing for both redox processes to occur in aqueous zinc batteries. Additionally, inhibition of pernigraniline hydrolysis in concentrated electrolyte ensures long-term stability. Excellent capacity retention and coulombic efficiency are achieved, demonstrating an effective strategy for energy storage with redox couples outside the conventional electrolyte voltage window.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Konstantin A. Milakin, Udit Acharya, Jirina Hromadkova, Miroslava Trchova, Jaroslav Stejskal, Patrycja Bober
Summary: The study prepared PANI-TSA and PANI-PTA salts by reprotonation of PANI base, followed by obtaining tungsten- and nitrogen-containing carbon derivatives through carbonization while maintaining conductivity. The research findings suggest that these carbon derivatives have potential applications in electrocatalysis.
Article
Engineering, Environmental
Huaiyin Chen, Huizhou Fan, Nan Su, Ruoyu Hong, Xuesong Lu
Summary: PFOA/PANI nanoparticles were successfully prepared and applied in epoxy resin coatings to enhance their corrosion resistance. The experimental results demonstrated that PFOA/PANI/EP coatings have higher corrosion performance compared to traditional coatings. Additionally, the formation of a hydrophobic corrosion inhibition layer further improves the coatings' corrosion resistance.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Applied
Jinshuo Shi, Feilong Dong, Zhonghua Zhao, Jikui Wang
Summary: Hydrogels have attracted extensive attention due to their unique properties. However, modified hydrogels only exhibit specific properties, limiting their applications. This study aimed to endow hydrogels with dual functions through modification. The researchers successfully prepared an electromagnetic bifunctional hydrogel by incorporating composite Fe3O4 nanoparticles with excellent mechanical, electrical, and magnetic properties into the hydrogel matrix.
REACTIVE & FUNCTIONAL POLYMERS
(2023)
Article
Engineering, Chemical
Gerrald Bargeman
Summary: Commercially available nanofiltration membranes often show limited stability at extreme pH conditions, leading to the need for further research and development to improve pH stable NF membranes with a range of molecular weight cut-offs. Recent developments include the use of interfacial polymerization to produce thin film composite membranes, but there is still room for improvement in order to meet the performance characteristics of the best commercially available NF membranes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Doebner Von Tumacder, Zuzana Moravkova, Patrycja Bober
Summary: In the presence of Acid Blue 25, fibrillar polypyrrole film was electrosynthesised, which led to improved chain organization of PPy, increased capacitance by one order of magnitude up to 1770 mF/cm(2), and enhanced electroactivity and stability of the films.
Article
Polymer Science
Konstantin A. Milakin, Zuzana Moravkova, Rafal Konefal, Sonal Gupta, Udit Acharya, Zuzana Walterova, Patrycja Bober
Summary: The influence of oxidant nature and monomer:oxidant ratio on the polymerization of indole in water-ethanol medium was studied. The study optimized the reaction conditions and successfully synthesized polyindole materials with improved conductivity and thermal stability. Furthermore, by further optimizing the oxidant:monomer ratio, the carbonyl content in the polyindole molecular structure was reduced and the electroactivity of the material was enhanced.
Article
Chemistry, Applied
Konstantin A. Milakin, Udit Acharya, Islam M. Minisy, Doebner Von Tumacder, Zuzana Moravkova, Oumayma Taboubi, Tomas Syrovy, Lucie Syrova, Jiri Pfleger, Patrycja Bober
Summary: Colloidal dispersions of protonated polyaniline were prepared with the presence of phytic acid, leading to larger particle size and better long-term stability. The coatings exhibit different surface properties that can be useful for electrochemical applications.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Electrochemistry
Konstantin A. Milakin, Sonal Gupta, Ognen Pop-Georgievski, Zuzana Moravkova, Udit Acharya, Oumayma Taboubi, Stefan Breitenbach, Nemanja Gavrilov, Christoph Unterweger, Patrycja Bober
Summary: Polypyrrole-gelatin aerogels were successfully synthesized using a cryopolymerization approach and carbonization treatment. The carbonized materials exhibited preserved mechanical integrity, macroporous morphology, and enhanced structural order at higher temperatures. The nitrogen-containing carbon materials showed high conductivity and specific surface area, and the gravimetric capacitance of the products increased with higher carbonization temperatures.
ELECTROCHIMICA ACTA
(2022)
Review
Polymer Science
Sonal Gupta, Ram Datt, Anamika Mishra, Wing Chung Tsoi, Asit Patra, Patrycja Bober
Summary: This article summarizes the importance of PEDOT:PSS for biomedical applications, with a focus on its recent advances, challenges, and perspectives in antibacterial, tissue engineering, and biosensing fields.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Jaroslav Stejskal, Marek Jurca, Jarmila Vilcakova, Miroslava Trchova, Zdenka Kolska, Jan Prokes
Summary: In this study, macroporous melamine/formaldehyde sponge was coated in situ during the oxidation of pyrrole with iron(III) chloride hexahydrate. It was found that the addition of silicotungstic acid resulted in the formation of polypyrrole/silicotungstate deposits in either globular or nanotube form. These hybrid composites combined an organic conducting polymer with an inorganic component and had a large specific surface area. Furthermore, carbonization of the sponges resulted in the formation of macroporous carbon electrodes.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Polymer Science
Monika Vostinakova, Simona Lupinkova, Petr Rysanek, Jaroslav Stejskal, Zdenka Kolska
Summary: A novel composite material, polyaniline/aramid, was synthesized for the purpose of capturing carbon dioxide. The polyaniline was prepared via oxidative polymerization of aniline and used to modify the aramid surface. The composite showed a significantly increased carbon dioxide capture capacity compared to pristine aramid. This new material has the potential to be used as an effective adsorbent for carbon dioxide and for applications based on its adsorption properties.
POLYMER INTERNATIONAL
(2023)
Article
Nanoscience & Nanotechnology
Konstantin A. Milakin, Sonal Gupta, Libor Kobera, Andrii Mahun, Magdalena Konefal, Olga Kockova, Oumayma Taboubi, Zuzana Moravkova, Jia Min Chin, Kamal Allahyarli, Patrycja Bober
Summary: Composites of PANI and Zr-based MOFs, UiO-66 and UiO-66-NH2, were synthesized with high MOF content close to the theoretical value. The morphology of the composites was determined by the MOF templates, and the MOF structure was mostly preserved. The introduction of MOFs significantly improved the electrochemical performance and cycling stability of the PANI-MOF composites, making them attractive for energy storage applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Applied
Fahanwi Asabuwa Ngwabebhoh, Tomas Saha, Jaroslav Stejskal, Miroslava Trchova, Dusan Kopecky, Jiri Pfleger
Summary: Conducting polymers, particularly polypyrrole, were used for surface modification of three different leathers. The polymer was deposited on collagen fibers, forming a thin layer with thickness ranging from 24 to 200 μm. The modified leathers showed changes in mechanical properties and sheet resistances, and their conductivity and electroactivity can potentially be utilized in intelligent leathers for footwear, heating elements, and energy storage.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Chemistry, Analytical
Fahanwi Asabuwa Ngwabebhoh, Tomas Saha, Jaroslav Stejskal, Jan Prokes, Zdenka Kolska, Miroslava Trchova
Summary: Pigskin leather was carbonized to produce conducting nitrogen-containing carbons at temperatures up to 1200 degrees C. The yield of the solid char was high, even at high temperatures. The original morphology of collagen fibres was preserved and changes in molecular structure were observed. The electrical properties of the carbonized leather waste were found to be comparable to conducting polymers.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Polymer Science
Doebner Von Tumacder, Islam M. Minisy, Oumayma Taboubi, Patrycja Bober
Summary: The presence of organic dyes in the frozen-state polymerization of pyrrole has been found to significantly enhance the electroactivity and capacitance performance of polypyrrole (PPy). The PPy prepared under frozen conditions showed improved electrochemical stability and demonstrated excellent energy storage characteristics in a supercapacitor device.
Article
Materials Science, Multidisciplinary
Jaroslav Stejskal, Fahanwi Asabuwa Ngwabebhoh, Tomas Saha, Jan Prokes
Summary: In this study, leather waste carbonized at 800 ?C in an inert atmosphere was coated in situ with polyaniline. The resulting composites exhibited a bicontinuous conducting morphology due to the fibrous collagen structure of the original leather. The composites showed good conductivity even under alkaline conditions and were demonstrated to be potential adsorbents for organic-dye pollutants in water treatment, controllable by applied electrical potential.
Article
Chemistry, Multidisciplinary
Barbora Grycova, Katerina Klemencova, Pavel Lestinsky, Jaroslav Stejskal, Tomas Saha, Miroslava Trchova, Jan Prokes
Summary: The study investigates the conductivity of chromium-tanned pigskin leather waste carbonized using various methods to produce nitrogen-containing carbons. Four protocols were tested, and the most effective method involved pre-carbonization followed by activation. It was found that the carbonized material maintained its fibrous collagen morphology, with a slight reduction in yield. The activated products showed improved specific surface area, pore volume, and conductivity. The resistivity of the carbonized leather was determined, and the sample conductivity was relatively unaffected by the carbonization method.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Polymer Science
Konstantin A. Milakin, Oumayma Taboubi, Jirina Hromadkova, Patrycja Bober
Summary: Polypyrrole-gelatin aerogels containing magnetic barium ferrite particles were synthesized and used for the removal of Cr(VI) from aqueous media. The optimal pH for adsorption was found to be 4, due to the dominance of HCrO4- species and its better adsorption and reduction compared to CrO42-. The presence of magnetic particles did not affect the adsorption performance of the aerogels. The adsorption mechanism involved electrostatic interaction between chromium and the adsorbent.
Article
Polymer Science
Konstantin A. A. Milakin, Oumayma Taboubi, Udit Acharya, Miloslav Lhotka, Vaclav Pokorny, Magdalena Konefal, Olga Kockova, Jirina Hromadkova, Jiri Hodan, Patrycja Bober
Summary: Magnetic polypyrrole-gelatin-barium ferrite (PPy-G-BaFe) cryogels/aerogels were successfully synthesized by incorporating barium ferrite nanoparticles into a gelatin solution and conducting one-step oxidative cryopolymerization of pyrrole. The resulting aerogels exhibited higher specific surface area and conductivity compared to PPy-G aerogel prepared without barium ferrite. The magnetic PPy-G-BaFe aerogel with 10 wt% BaFe content showed significantly improved adsorption capacity and rate for anionic dye removal, making it an attractive adsorbent for water purification.
Article
Materials Science, Multidisciplinary
Katerina Skopalova, Itana Nusa Bubanja, Dragomir Stanisavljev, Nikola Cvjeticanin, Vera Kasparkova, Eliska Dad'ova, Erika Pavlikova, Marek Koutny, Marija Gizdavic-Nikolaidis, Petr Humpolicek
Summary: This study compares the biological properties of PANI prepared by different synthesis methods and oxidizing agents, which improves its potential applications in the biomedical field.
Article
Materials Science, Multidisciplinary
Hui-Ping Li, Cai-Yan Gao, Zhi-Ping Chen, Xin-Heng Fan, Lian-Ming Yang
Summary: In this study, a novel type of D-A non-fused-ring copolymers was designed and synthesized to overcome the trade-off relationship between electrical conductivity and Seebeck coefficient in organic semiconductors. The incorporation of fluorine atoms into the polymer backbone effectively increased the ordered degree of molecular stacking and improved both the electrical conductivity and Seebeck coefficient. The bimodal orientation of polymers played a crucial role in decoupling the correlation between electrical conductivity and Seebeck coefficient.
Article
Materials Science, Multidisciplinary
Mansour A. S. Salem, Amjad Mumtaz Khan, Hatem A. M. Saleh, Khalil M. A. Qasem, Mizna Ahmed, Aadil Shafi Bhat, Abdulaziz Abdullah Qasem Ali, Younes S. A. Ghanem, Ali Alrabie, Abdel-Basit Al-Odayni, Waseem Sharaf Saeed, Basheer Al-Anesi
Summary: This research focuses on the versatile substance, polyaniline/layered double hydroxide (PANI@Nd-Co/LDH), under solvothermal conditions. A thorough analysis of its structure and morphology was conducted using various analytical methods. The findings showed that PANI@Nd-Co/LDH exhibited highly sensitive and specific fluorescence detection of Pb(II) and Al(III), outperforming other heavy metal ions. The sensor demonstrated a turn-off fluorescence response for Pb(II) ions and a turn-on fluorescence response for Al(III) ions. The minimum detectable limits (MDL) were determined to be 9.6 nM for Pb(II) and 220 nM for Al(III). PANI@Nd-Co/LDH could be easily regenerated and reused for multiple cycles. The detection mechanisms involved the inner filter effect (IFE) for Pb(II) and the chelation-enhanced fluorescence (CHEF) effect for Al(III). These results highlight the excellent potential of PANI@Nd-Co/LDH in the detection and recognition of Pb(II) and Al(III) ions.
