Graphite-based electrodes (graphite, graphene, and nanotubes) are used widely in electrochemistry, and there is a long-standing view that graphite step edges are needed to catalyze many reactions, with the basal surface considered to be inert. In the present work, this model was tested directly for the first time using scanning electrochemical cell microscopy reactive patterning and shown to be...

The continuous monitoring of the distribution of glutamate (Glu), a neurotransmitter released at synaptic terminals, is important in terms of understanding the signal transfer mechanism in the brain. In this study, we monitored the concentration of Glu released at multiple positions in a hippocampal slice continuously, and obtained an approximate Glu distribution by using our electrochemical gl...

Charge carrier mobilities of organic semiconductors are often characterized using steady-state measurements of space charge limited diodes. These measurements assume that charge carriers are in a steady-state equilibrium. In reality, however, energetically hot carriers are introduces by photo-excitation and injection into highly energetic sites from the electrodes. These carriers perturb the eq...

OBJECTIVE To report preliminary results of a new closed-skin, transcutaneous bone conduction device (BCD) in 6 children with high-grade ear atresia. SETTINGS Tertiary care center; prospective study; we evaluated the gain with masking of the contralateral ear and the benefit of hearing rehabilitation with the transcutaneous BCD in noise: speech-in-noise tests, conducted in real life condition ...

The objective of this study was to assess the changes in transcutaneous oxygen tension in pediatric patients undergoing nitrous oxide-oxygen analgesia. A total of 19 healthy patients, ranging in age from 3 to 19 years with a mean age of 9.8 years, were included. Transcutaneous oxygen monitoring was performed; following stabilization, baseline readings were obtained. Oxygen was delivered at 3 I/...

The different kinds of bone-conduction devices (BCDs) available for hearing rehabilitation are growing. In this paper, all BCDs currently available or in clinical trials will be described in categories according to their principles. BCDs that vibrate the bone via the skin are referred to as skin-drive devices, and are divided into conventional devices, which are attached with softbands, for exa...

The influence of naloxone on the effects of high frequency transcutaneous electrical nerve stimulation in angina pectoris induced by atrial pacing was studied in 11 patients with severe coronary artery disease. The patients were catheterised and treated with transcutaneous electrical nerve stimulation on two occasions, double blind and in random order, with a single intravenous dose of saline o...

BACKGROUND Transcutaneous electrical nerve stimulation and interferential current have been widely used in clinical practice. However, a systematic review comparing their effects on pain relief has not yet been performed. OBJECTIVES To investigate the effects of transcutaneous electrical nerve stimulation and interferential current on acute and chronic pain. METHODS We use Pubmed, Embase, L...

INTRODUCTION Transcutaneous electrical nerve stimulation is a possible adjunctive therapy to pharmacological treatment for controlling pain after total knee arthroplasty. However, the results are controversial. A systematic review and meta-analysis was conducted to explore the effect of transcutaneous electrical nerve stimulation on patients with total knee arthroplasty. METHODS PubMed, Embas...

background: the use of transcutaneous electrical nerve stimulation (tens) in dentistry was fi rstdescribed in 1967, by shane and kessler, but it has yet to gain widespread acceptance in dentistry. a study was undertaken to evaluate the effectiveness of tens therapy as an adjuvant modality and to compare it with the conventional medication in controlling pain in temporomandibular disorder (tmd) ...