Article
Chemistry, Physical
Bin Yang, Xin Chang, Xinyao Ding, Xinzhi Ma, Mingyi Zhang
Summary: In this study, a new catalyst Ni2P/Mn2O3 nanofibers with ultra-high electrochemical active area was successfully synthesized. Effective strategies of constructing one-dimensional nanostructures and composite oxides were explored to enhance the electrocatalytic performance. The Ni2P/Mn2O3 nanofibers exhibited low over-potential and high stability in oxygen production.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Xuepeng Ni, Yang Jiang, Haoyu Chen, Kunming Li, Huifang Chen, Qilin Wu, Anqi Ju
Summary: Flexible HCNFs/PANI composites were prepared with high capacity and good cycling stability, showing outstanding electrochemical performance in supercapacitors and potential applications in flexible energy storage devices.
CHINESE CHEMICAL LETTERS
(2021)
Article
Polymer Science
Viera Khunova, David Pavlinak, Ivo Safarik, Martin Skratek, Frantisek Ondreas
Summary: By incorporating magnetically responsive halloysite into electrospun nanofibers, soft magnetic biocompatible materials with high saturation magnetization and coercivity can be produced. Furthermore, the use of both magnetically responsive halloysite and tubular halloysite can improve the nanofiber structure and enhance its performance, with the most significant enhancement observed when 9 wt.% magnetically responsive halloysite is added.
Article
Polymer Science
Mohamadreza Shakiba, Seyed Reza Nabavi, Hamid Emadi, Mehdi Faraji
Summary: In this study, PAN/PANI membranes were prepared by modifying PAN electrospun nanofibers with PANI. The PAN/40%PANI nanofibers prepared at 40 degrees C exhibited superhydrophilicity and were found to be the most suitable membrane for separating O/W emulsions. The membrane showed high water flux and efficient oil rejection, making it a promising candidate for water purification from industrial organic pollutants.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2021)
Article
Nanoscience & Nanotechnology
Rotem Azoulay, Maya Barzilay, Inbal Weisbord, Ron Avrahami, Eyal Zussman, Tamar Segal-Peretz
Summary: In this study, a new approach for precise fabrication of ceramic fibers was presented by controlling the growth of metal oxides within electrospun polymer fibers. The dimensions, morphology, and surface structure of the fibers can be programmably controlled. Additionally, the method was extended to fabricate core-shell fibers with tunable core and shell thicknesses.
ACS APPLIED NANO MATERIALS
(2022)
Article
Engineering, Environmental
Jianhua Zhu, Qian Zhang, Lefan Guo, Yanjiao Zhao, Ruiyun Zhang, Lifang Liu, Jianyong Yu
Summary: This study designed and fabricated a structure consisting of flexible hollow hierarchical porous carbon nanofibers bridged by carbon nanotubes, decorated with polyaniline. The resulting composite material exhibited excellent flexibility and high specific capacitance, maintaining a high capacitance retention during charging-discharging cycles.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Biotechnology & Applied Microbiology
Zohreh Daraeinejad, Iman Shabani
Summary: Conductive nanofibers were fabricated through electrospinning of PANI/PES using different solvents, with HFIP identified as the best solvent due to its low boiling point and surface tension. The study found that a solvent with suitable properties can lead to enhanced electrical conductivity and a shift from a flat 2D structure to a fluffy 3D structure in the resulting nanofibrous scaffold. Additionally, the optimal percentage of PES varied depending on the solvent used, with HFIP allowing for electrospinning at lower concentrations.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Chemistry, Physical
Yuhao Wang, Wenyue Li, Chenchen Li, Bangze Zhou, Yanfen Zhou, Liang Jiang, Shipeng Wen, Fenglei Zhou
Summary: Fiber-based strain sensors with ultra-high working range and high gauge factor were developed in this study using electrospun TPU nanofibrous membrane coated with carboxyl CNTs. The sensors exhibited good washing fastness, electrical conductivity, and sensitivity to human body motions.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Shayan Louie, Yu Zhong, Si Tong Bao, Cedric Schaack, Alvaro Montoya, Zexin Jin, Nicholas M. Orchanian, Yang Liu, Wenrui Lei, Kelsey Harrison, James Hone, Alexander Angerhofer, Austin M. Evans, Colin P. Nuckolls
Summary: This study describes the synthesis of hexameric macrocyclic aniline (MA[6]) and its assembly into conductive organic wires. The electrical conductivity of ESMA[6] is high and responsive to acid-base conditions. The crystal structure of ES-MA[6] reveals the formation of trimeric units and nanotubes with regular channels, providing a potential route for synthetic nanotubes used in ion or small molecule transport. Spectroscopic analysis further demonstrates the interconversion between acidic and basic forms of the macrocycles and how charge carriers are formed through protonation, resulting in high electrical conductivity.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Review
Materials Science, Multidisciplinary
Jaeyu Lee, Seongjun Moon, Joerg Lahann, Kyung Jin Lee
Summary: Electrospinning has attracted attention for its ability to create nonwoven nanofiber webs with high surface area and porosity. However, traditional needle and syringe-based systems have limited productivity. This article examines the latest developments in nonconventional electrospinning methods, such as needleless and syringeless electrospinning, which have the potential to meet industrial-scale manufacturing requirements and produce nanofibers that are difficult to spin using traditional techniques.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2023)
Article
Polymer Science
Shohei Fujita, Huaizhong Xu, Yubing Dong, Yoko Okahisa
Summary: By using water-soluble polymer PVA, composite nanofibers with high fibroin nanofiber content can be manufactured, which exhibit excellent mechanical and thermal properties.
Article
Biochemistry & Molecular Biology
Maryam Asadi-Korayem, Mahdokht Akbari-Taemeh, Fariba Mohammadian-Sabet, Alireza Shayesteh, Hamed Daemi
Summary: This research aims to improve the electrospinnability of alginate by focusing on the effect of inter- and intramolecular hydrogen bonding, using Li+ cation to reduce the hydrogen bonding density. Viscosity, electrical conductivity, FTIR, and H-1 NMR measurements confirmed the lower intramolecular hydrogen bonding density in Li-Alg. SEM images demonstrated the enhanced electrospinnability of Li-Alg compared to Na-Alg and K-Alg salts.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Biochemistry & Molecular Biology
Mahmoud Abid, Elissa Makhoul, Fida Tanos, Igor Iatsunskyi, Emerson Coy, Geoffroy Lesage, Marc Cretin, David Cornu, Abdesslem Ben Haj Amara, Mikhael Bechelany
Summary: In this study, N-HNT-TiO2 composite nanofibers were produced by combining electrospinning of halloysite with nitriding for acetaminophen photodegradation. The materials showed even distribution of nitrogen and exhibited faster photodegradation of acetaminophen under visible light compared to samples without nitrogen. The composite nanofibers maintained their photocatalytic activity after repeated use and OH center dot-, O-2(center dot-) and h(+) radicals were found to play key roles in acetaminophen degradation.
Article
Materials Science, Multidisciplinary
Hongyu Meng, Xuezhi Qiao
Summary: The preparation of nanofibers with finer diameters by adding Fe3O4 nanoparticles has potential applications in nanomaterials and nano-devices, with purified ultrafine nanofibers obtained through ultrasonic disruption and magnetic separation.
MATERIALS ADVANCES
(2021)
Article
Environmental Sciences
Yanjiang Li, Yufeng Yin, Fengting Xie, Guangzhen Zhao, Lu Han, Li Zhang, Ting Lu, Mohammed A. Amin, Yusuke Yamauchi, Xingtao Xu, Guang Zhu, Likun Pan
Summary: In this study, the conductivity and desalination performance of capacitive deionization (CDI) materials were improved by coating polyaniline on the surface of Mn(2)O(3) nanorods, showing potential applications.
ENVIRONMENTAL RESEARCH
(2022)
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.
