The attachment of rat aortic smooth muscle cells to various surfaces has been monitored by a thickness shear mode acoustic wave device incorporated into an on-line configuration. Using the total injection analysis method, laminin and fibronectin were adsorbed to the device surface, to be followed by introduction of cells into the system. The results of these experiments in terms of frequency and motional resistance measurements were also compared with those for cell attachment to the bare gold electrode of the sensor. The responses of the surface-bound cells to the introduction of various ions, depolarisation events and damage subsequent to exposure to hydrogen peroxide were also observed. Morphological changes in the cells, as confirmed by scanning electron microscopy, are correlated with results of the acoustic wave measurements.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/b714210b | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Investigating the moments of "aha" and "hmm" through acoustic analysis of voice and speech in pre-service physics teacher education-A novel method for identifying significant learning moments.
PLoS One
January 2025
Department of Teacher Education, University of Jyväskylä, Jyväskylä, Finland.
The aim of the study was to find whether certain meaningful moments in the learning process are noticeable through features of voice and how acoustic voice analyses can be utilized in learning research. The material consisted of recordings of nine university students as they were completing tasks concerning direct electric circuits as part of their course of teacher education in physics. Prosodic features of voice-fundamental frequency (F0), sound pressure level (SPL), acoustic voice quality measured by LTAS, and pausing-were investigated.
View Article and Find Full Text PDFReal sounds influence postural stability in people with vestibular loss but not in healthy controls.
PLoS One
January 2025
Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America.
Objective: What we hear may influence postural control, particularly in people with vestibular hypofunction. Would hearing a moving subway destabilize people similarly to seeing the train move? We investigated how people with unilateral vestibular hypofunction and healthy controls incorporated broadband and real-recorded sounds with visual load for balance in an immersive contextual scene.
Design: Participants stood on foam placed on a force-platform, wore the HTC Vive headset, and observed an immersive subway environment.
Lateral olivocochlear neurons modulate cochlear responses to noise exposure.
Proc Natl Acad Sci U S A
January 2025
Department of Neurobiology, Harvard Medical School, Boston, MA 02115.
The sense of hearing originates in the cochlea, which detects sounds across dynamic sensory environments. Like other peripheral organs, the cochlea is subjected to environmental insults, including loud, damage-inducing sounds. In response to internal and external stimuli, the central nervous system directly modulates cochlear function through olivocochlear neurons (OCNs), which are located in the brainstem and innervate the cochlear sensory epithelium.
View Article and Find Full Text PDFAsynchronous shifts in the demographics of two wave-swept kelp species (Laminariales) after nearly four decades.
J Phycol
January 2025
Bamfield Marine Sciences Centre, Bamfield, British Columbia, Canada.
Kelp forests are among the most abundant and productive marine ecosystems but are under threat from climate change and other anthropogenic stressors. Although knowledge is growing about how the abundance and distribution of kelp forests are changing, much less is known about the "non-lethal" effects that global change is having on the performance and health of kelp populations in areas where they persist. Here we assessed the age distribution of two common stipitate kelp species, Laminaria setchelli and Pterygophora californica, at Wizard Islet in Barkley Sound, British Columbia, Canada, and compared these data to historical demographic data collected by De Wreede (1984) and Klinger and DeWreede (1988) from the same site between 1981 and 1983.
View Article and Find Full Text PDFMeasuring self-similarity in empirical signals to understand musical beat perception.
Eur J Neurosci
January 2025
Institute of Neuroscience (IONS), UCLouvain, Brussels, Belgium.
Experiencing music often entails the perception of a periodic beat. Despite being a widespread phenomenon across cultures, the nature and neural underpinnings of beat perception remain largely unknown. In the last decade, there has been a growing interest in developing methods to probe these processes, particularly to measure the extent to which beat-related information is contained in behavioral and neural responses.
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!