The Scanning Bipolar Electrochemical Microscope (SBECM) allows precise positioning of an electrochemical micro-probe serving as bipolar electrode that can be wirelessly interrogated by coupling the electrochemical detection reaction with an electrochemiluminescent reporting process. As a result, the spatially heterogeneous concentrations of an analyte of interest can be converted in real time into a map of sample reactivity. However, this can only be achieved upon optimization of the analytical performance ensuring adequate sensitivity. Here, we present the evaluation and optimized operation of the SBECM for the detection of small changes in local O concentrations. Parameters for achieving an improved sensitivity as well as possibilities for improving the signal-to-noise ratio in the optical signal readout are evaluated. The capability of the SBECM for O detection is shown at controlled conditions by recording the topography of a patterned sample and monitoring O evolution from a photoelectrocatalyst material.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.aca.2019.08.049 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Alterations of subcortical structural volume in pediatric bipolar disorder patients with and without psychotic symptoms.
Psychiatry Res Neuroimaging
January 2025
Department of Child Psychology, The Children's Hospital, National Clinical Research Center for Child Health, Zhejiang University School of Medicine, National Children's Regional Medical Center, Hangzhou, Zhejiang, China. Electronic address:
Background: Pediatric bipolar disorder (PBD) with psychotic symptoms may predict more severe impairment in social functioning, but the underlying biological mechanisms remain unclear. The aim of this study was to investigate alterations in subcortical structural volume in PBD with and without psychotic symptoms.
Methods: We recruited 24 psychotic PBD (P-PBD) patients, 24 non-psychotic PBD (NP-PBD) patients, and 18 healthy controls (HCs).
Fabrication and Coating of Porous Ti6Al4V Structures for Application in PEM Fuel Cell and Electrolyzer Technologies.
Materials (Basel)
December 2024
Department of Material Science and Engineering, Universidad Carlos III de Madrid, IAAB, 28911 Leganés, Madrid, Spain.
The production of green hydrogen through proton exchange membrane water electrolysis (PEMWE) is a promising technology for industry decarbonization, outperforming alkaline water electrolysis (AWE). However, PEMWE requires significant investment, which can be mitigated through material and design advancements. Components like bipolar porous plates (BPPs) and porous transport films (PTFs) contribute substantially to costs and performance.
View Article and Find Full Text PDFA lightweight multi scale fusion network for IGBT ultrasonic tomography image segmentation.
Sci Rep
January 2025
School of Information and Communication Engineering, North University of China, Taiyuan, 030051, China.
The Insulated Gate Bipolar Transistor (IGBT) is a crucial power semiconductor device, and the integrity of its internal structure directly influences both its electrical performance and long-term reliability. However, the precise semantic segmentation of IGBT ultrasonic tomographic images poses several challenges, primarily due to high-density noise interference and visual distortion caused by target warping. To address these challenges, this paper constructs a dedicated IGBT ultrasonic tomography (IUT) dataset using Scanning Acoustic Microscopy (SAM) and proposes a lightweight Multi-Scale Fusion Network (LMFNet) aimed at improving segmentation accuracy and processing efficiency in ultrasonic images analysis.
View Article and Find Full Text PDFPineal cyst in bipolar patient with normolithiaemia and positive fibromyalgic tender points.
Radiol Case Rep
March 2025
Unit of Neurosurgery, Sant'Elia Hospital, via Luigi Russo n° 6, Caltanissetta, Italy.
Article Synopsis
- Pineal cysts are benign growths in the pineal gland often found accidentally during MRIs, usually causing no symptoms but can lead to neurological issues if they grow.
- The exact causes of these cysts are unclear, but factors like inflammation from conditions like fibromyalgia and mechanical stress may contribute, along with potential links to long-term lithium use in psychiatric treatment.
- A case study of a 49-year-old woman with bipolar disorder on lithium highlighted possible connections between cyst formation, systemic inflammation, and psychiatric conditions, indicating the need for more research on these interactions.
Brain 18FDG-PET pattern in cognitively impaired elderly patients with bipolar disorder.
Int J Bipolar Disord
December 2024
Université Paris Cité, UMRS 1144, INSERM, Paris, France.
Background: Patients with bipolar disorder (BD) are at increased risk of dementia. The underlying mechanisms are debated. FDG-PET elucidates glucose metabolic reductions due to altered neuronal activity in the cerebral cortex, allowing detection and identification of neurodegenerative processes.
View Article and Find Full Text PDFWant 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!