It is known that the suspended liquid droplets in clouds can generate electrostatic charges, which finally results in the lightning. However, the detailed mechanism related to the contact-electrification process on the liquid-gas (L-G) interfaces is still poorly understood. Here, by introducing an acoustic levitation method for levitating a liquid droplet, we have studied the electrification mechanism at the L-G interface. The tribo-motion between water droplets and air induced by the ultrasound wave leads to the generation of positive charges on the surface of the droplets, and the charge amount of water droplets (20 μL) gradually reaches saturation within 30 s. The mixed solid particles in droplets can increase the amount of transferred charge, whereas the increase of ion concentration in the droplet can suppress the charge generation. This charge transfer phenomenon at L-G interfaces and the related analysis can be a guidance for the study in many fields, including anti-static, harvesting rainy energy, micro/nano fluidics, triboelectric power generator, surface engineering, and so on. Moreover, the surface charge generation due to L-G electrification is an inevitable effect during ultrasonic levitation, and thus, this study can also work for the applications of the ultrasonic technique.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acsnano.1c07158 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Mechanism, Performance, and Application of g-CN-Coupled TiO as an S-Scheme Heterojunction Photocatalyst for the Abatement of Gaseous Benzene.
ACS Appl Mater Interfaces
January 2025
Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-Gu, Seoul 04763, Republic of Korea.
In this research, S-scheme heterojunction photocatalysts are prepared through the hybridization of nitrogen-rich g-CN with TiO (coded as TCN-(): as the weight ratio of TiO:g-CN). The photocatalytic potential of TCN-() is evaluated against benzene (1-5 ppm) across varying humidity levels using a dynamic flow packed-bed photocatalytic reactor. Among the prepared composites, TCN-(10) exhibits the highest synergy between g-CN and TiO at "" ratio of 10%, showing superior best benzene degradation performance (e.
View Article and Find Full Text PDFpVACview: an interactive visualization tool for efficient neoantigen prioritization and selection.
Genome Med
November 2024
Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA.
Background: Neoantigen-targeting therapies including personalized vaccines have shown promise in the treatment of cancers, particularly when used in combination with checkpoint blockade therapy. At least 100 clinical trials involving these therapies have been initiated globally. Accurate identification and prioritization of neoantigens is crucial for designing these trials, predicting treatment response, and understanding mechanisms of resistance.
View Article and Find Full Text PDFScaling of N-Type Field-Effect Transistors Based on Aligned Carbon Nanotube Arrays.
ACS Appl Mater Interfaces
October 2024
Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics, School of Electronics, Peking University, Beijing 100871, China.
Article Synopsis
- - Wafer-scale aligned carbon nanotubes (A-CNTs) are being explored as high-performance materials for future CMOS transistors in integrated circuits, especially in creating p-type field-effect transistors (P-FETs) that perform well at small scales.
- - Researchers have successfully created top-gated n-type FETs (N-FETs) using A-CNTs with scandium contacts, achieving impressive results like over 1 mA/μm on-state current and 0.4 mS/μm peak transconductance.
- - However, the N-FETs exhibited unusual scaling issues due to oxidation at the contacts, which complicates scaling both gate and contact lengths, highlighting the need to
Characterization and Automatic Discrimination between Predominant Hypoperfusion and Hyperperfusion Stages of NPDR.
J Pers Med
September 2024
AIBILI-Association for Innovation and Biomedical Research on Light and Image, 3000-548 Coimbra, Portugal.
Article Synopsis
- Diabetic retinopathy (DR) is a serious complication of diabetes that can lead to blindness, making it crucial to identify at-risk eyes to develop targeted treatments.
- The study used 82 imaging and systemic features from 109 type 2 diabetes patients to distinguish between different stages of nonproliferative diabetic retinopathy (NPDR), showing that the disease progresses from hypoperfusion to hyperperfusion.
- The classification model effectively identified disease progression stages, achieving higher accuracy with both static and dynamic features, highlighting the importance of early detection to improve treatment strategies.
Epilepsy in Patients With Primary CNS Lymphoma: Prevalence, Risk Factors, and Prognostic Significance.
Neurology
September 2024
From the Departments of Neurosurgery (O.A., A.C., B.M.), Neuro-Oncology (C.H., A.A., K.H.-X.), Hematology (S.C.), Epileptology (S.D.), Neuropathology (K.M.), Neuroradiology (D.L., L.N.), Nuclear Medicine (A.K., L.R.), and Biological Hematology (M.L.G.-T.), the Paris Brain Institute (ICM) (O.A., A.A., B.M.), LIB, INSERM U1146 (A.K., L.R.), INSERM U1127 (B.M.), CNRS UMR 7225 (B.M.), and GRC 23, Brain Machine Interface (A.C), La Pitié-Salpêtrière Hospital, Sorbonne University, Paris, France.
Background And Objectives: Epilepsy is a common comorbidity of brain tumors; however, little is known about the prevalence, onset time, semiology, and risk factors of seizures in primary CNS lymphoma (PCNSL). Our objectives were to determine the prevalence of epilepsy in PCNSL, to identify factors associated with epilepsy, and to investigate the prognostic significance of seizures in PCNSL.
Methods: We performed an observational, retrospective single-center study at a tertiary neuro-oncology center (2011-2023) including immunocompetent patients with PCNSL and no history of seizures.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!