Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Ionic liquids (ILs) with significant dipole moments exhibit massive electric polarization () under an applied AC electric field () at room temperature. Among the various investigated ILs, the -toluene sulfonate of 1-ethyl-3-methylimidazolium, [Cmim][Tos], which has a large dipole moment in the tosylate anion (∼10.99 D), shows large hysteresis in - curves with a high saturation polarization ( ∼ 92 μC cm) and a remanent polarization ( ∼ 68 μC cm) at a relatively low electric field (1.75 kV cm). The mechanism of polarization and its switching in ILs are corroborated by the switching current peaks observed in current density () versus () profiles and the change in fluorescence intensity of a cyanine dye doped in ILs. The reversible cyanine fluorescence intensity changes in response to the applied AC electric field reflect the dynamic orientational changes of the IL, synchronized with the polarization reversal. The dependence of and values on applied AC electric fields () is fitted by two straight lines with different slopes, below and above a threshold electric field (∼1.25 kV cm). Long-range order is not obtained below the threshold potential of . Under AC electric fields above , more significant polarization and cyanine fluorescence responses to the electric field are observed. The present study indicates the presence of long-range ordering of molecular dipole moments over a distance of more than 1 μm from the interfacial adsorption layers through the transition zone to the bulk zone.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/jacs.5c00098 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Cellulose Acetate Nanofiber and Sodium Alginate-Based Conductive Aerogel for Human Motion Monitoring.
Macromol Rapid Commun
September 2025
School of Materials and Chemistry, Anhui Agricultural University, Hefei, Anhui, China.
At present, flexible sensors are a hot spot in research and experimental development, but the research on flexible sensors that can be used for human motion monitoring still needs to be deepened. In this work, the green material cellulose acetate (CA) was used as the matrix material, the film was made by electrospinning, crushed by a cell grinder and sodium alginate (SA) was added to promote the uniform dispersion of nanofibers in water, and then methyltrimethoxysilane (MTMS) and MXene nanosheet dispersion were added to make it hydrophobic and good conductivity, and the aerogel precursor solution was prepared, and then the CA/SA/MTMS/MXene aerogel with directional holes was prepared by directional freeze-drying. As a flexible sensor material, it can be used for human wear, monitoring the electrical signals generated by the movement of human joints and other parts, and can still maintain a current of about 0.
View Article and Find Full Text PDFAn Antibacterial and Electroactive Chitosan-Based Dressing with Dual Stimulus-Responsive Drug Delivery for Wound Healing.
Macromol Rapid Commun
September 2025
Key Laboratory of Textile Science & Technology, College of Textiles, Ministry of Education, Donghua University, Shanghai, China.
Persistent bacterial infections remain a major challenge in wound management. Although drug-loaded wound dressings have gained increasing attention, their therapeutic efficacy is often hindered by uncontrolled drug release and a lack of electrical signal responsiveness. Herein, an antibacterial dressing (CCS-PC) with electroactivity and stimulus-responsive drug release properties was fabricated via electro-assembly, wherein chitosan and ciprofloxacin hydrochloride (CIP) were co-deposited onto polypyrrole (PPy)-coated gauze.
View Article and Find Full Text PDFEvaluation of the impact of sugarcane trash in situ incorporation on soil health in North Haryana.
Environ Monit Assess
September 2025
Institute of Environmental Studies, Kurukshetra University, Kurukshetra, Haryana, 136119, India.
India produces an estimated 6.38 million tons of surplus sugarcane trash annually. When burned in fields, this trash emits approximately 12,948 kg CO equivalent greenhouse gases per hectare and causes nutrient losses (41 kg ha nitrogen, 5.
View Article and Find Full Text PDF[Electrophysiological methods in the diagnosis and monitoring of glaucoma].
Vestn Oftalmol
September 2025
Krasnov Research Institute of Eye Diseases, Moscow, Russia.
Primary open-angle glaucoma (POAG) is characterized by chronic progressive damage to the retinal ganglion cell layer (GCL) and their axons, leading to gradual visual function loss. Currently, the gold standards for structural and functional assessment of the retina in glaucoma are static automated perimetry (SAP) and optical coherence tomography (OCT). However, in clinical practice, data from SAP and OCT may be insufficient to reliably determine the stage of glaucomatous optic neuropathy, monitor its progression, or differentiate it from other causes of visual dysfunction.
View Article and Find Full Text PDFUltra-high field strength electroporation enables efficient DNA transformation and genome editing in nontuberculous mycobacteria.
Microbiol Spectr
September 2025
Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China.
Efficient DNA delivery is essential for genetic manipulation of mycobacteria and for dissecting their physiology, pathogenesis, and drug resistance. Although electroporation enables transformation efficiencies exceeding 10⁵ CFU per µg DNA in and , it remains highly inefficient in many nontuberculous mycobacteria (NTM), including . Here, we discovered that NTM such as exhibit exceptional tolerance to ultra-high electric field strengths and that hypertonic preconditioning partially protects cells from electroporation-induced damage.
View Article and Find Full Text PDF