Avtor/Urednik		Rozman, Janez; Ribarič, Samo
Naslov		A setup for selective infrared stimulation of an isolated porcine vagus nerve
Tip		članek
Vol. in št.		, št. Vol. 292
Leto izdaje		2019
Obseg		str. 97-104
ISSN		0924-4247 - Sensors and actuators. A, Physical
Jezik		eng
Abstrakt		We developed an experimental setup for selective infrared (IR) stimulation of an isolated porcine vagus nerve. The system consists of an infrared IR diode (IR diode), providing an optical power of 6.5 W at [lambda] = 1937 nm, high-quality fibre optic multimode patch cables, an optical pulse shaper, and a custom made experimental chamber. The system allows researchers to vary: the radiant exposure from 0 to 2.3 Jcm-2, vertical displacement of the IR aperture, nominal pulse duration that could be set at 250, 500, and 800 [micro]s, and frequency of IR pulses between 15 and 50 Hz, enabling the assessment of the relationship between different patterns of IR pulses and the elicited nerve response (NR). The main contribution resulting from the study is an optical pulse shaper, which generates IR pulses with a rise-time of approximately 100 ns, and facilitatesan appropriate coupling efficiency via a Grin Lens Fibre Coupler/Fibre Optic Positioner. Another novelty is the 3D positioning device of the experimental chamber, which enables the ex-vivo assessment of spatial and fibre-type selectivity.
Proste vsebinske oznake		kratkovalovna infrardeča svetloba stimulacija živcev živec Vagus short-wave infrared light nerve stimulation Vagus nerve