scholarly journals Parallel Optical Control of Spatiotemporal Neuronal Spike Activity Using High-Speed Digital Light Processing

2011 ◽  
Vol 5 ◽  
Author(s):  
Jason Jerome ◽  
Robert C. Foehring ◽  
William E. Armstrong ◽  
William J. Spain ◽  
Detlef H. Heck
Keyword(s):  
Spike Activity ◽  
High Speed ◽  
Optical Control ◽  
Digital Light Processing ◽  
Neuronal Spike

Method for Obtaining Light Curing Printing Condition Based on New Theoretical Description

2020 ◽  
Author(s):  
Yang Li ◽  
Jun Yin
Keyword(s):  
Tissue Engineering ◽  
High Speed ◽  
Soft Materials ◽  
Theoretical Description ◽  
Gel Point ◽  
Digital Light Processing ◽  
Light Curing ◽  
The Relationship ◽  
Physical Quantities ◽  
Printing Method

Abstract Digital light processing (DLP) is widely used in tissue engineering in recent years. High resolution and high speed are the advantages of this printing method. The method of determining DLP process printing conditions by forming experiments is restricted by the formability of the material and it is difficult to apply to soft materials and materials that are not easily formed. In this study, through theoretical analysis that the concept of absorbances and gel point is introduced into the relationship between exposure time and forming thickness. This allows the forming conditions to be obtained by measurement of only physical quantities related to the nature of the material itself rather than through forming experiments. Which facilitates high-precision DLP printing of biomaterials.

Neuronal spike activity in the nucleus accumbens of behaving rats during ethanol self-administration

1999 ◽  
Vol 817 (1-2) ◽  
pp. 172-184 ◽  
Author(s):  
Patricia H Janak ◽  
Jing-Yu Chang ◽  
Donald J Woodward
Keyword(s):  
Nucleus Accumbens ◽  
Spike Activity ◽  
Self Administration ◽  
Neuronal Spike

Optimization and Constraints in Sonolithography

2007 ◽  
Vol 1059 ◽  
Author(s):  
Paul Campbell ◽  
Paul Prentice
Keyword(s):  
High Speed ◽  
Spatial Configuration ◽  
Scaling Up ◽  
Optical Control ◽  
System Failure ◽  
Hydraulic Systems ◽  
Rigid Substrate ◽  
Multiple Bubbles ◽  
Cavitation Nuclei ◽  
Controllable Size

ABSTRACTThe violent interaction between pressure driven cavitation nuclei and nearby rigid substrates is usually a troublesome occurrence, giving rise to damage, and often system failure in hydraulic systems. However, the extreme nature of the phenomenon can also be exploited in situations where deliberate wear or erosion of a material is desireable, such as with the application of shock wave lithotripsy to fragment kidney stones in a medical context. The purpose of the present study was to examine whether a system can be designed so as to afford a level of control over cavitation processes, so that other useful applications might arise. Specifically, we looked at controlling single cavitation nuclei, constituted by encapsulated microbubbles, in proximity to a nearby rigid substrate and activated by ultrasound. This was achieved using a novel optical trapping arrangement, which facilitated establishment of an arbitrary, stable, initial spatial configuration for a bubble system. Critically, exercising optical control in such a way meant that a microbubble could be isolated from a resident population during insonation thus ensuring that ‘cross-talk’ with the rest of the bubble population was minimised. We observed, using high speed microphotography at circa one million frames per second that fine microjets are issued from cavitation microbubbles, and these impact the nearby surface, creating indentations of controllable size. Specific applications may arise that exploit this action, which, in the general case we refer to as ‘sonolithography’. However, scaling up the process to activate multiple bubbles at once, may lead to complications arising via the action of secondary radiation forces. We discuss the salient aspects of our preliminary findings on this subject herein.

Recording Neuronal Spike Activity During Transcranial Direct Current Stimulation1

2015 ◽  
Vol 9 (2) ◽  
Author(s):  
Nathaniel J. Faber ◽  
Filippo Agnesi ◽  
Matthew D. Johnson
Keyword(s):  
Direct Current ◽  
Spike Activity ◽  
Neuronal Spike

High-speed optical switching based on diffusive conduction in an optical waveguide with surface-normal optical control

2004 ◽  
Vol 95 (5) ◽  
pp. 2258-2263 ◽  
Author(s):  
V. A. Sabnis ◽  
H. V. Demir ◽  
M. B. Yairi ◽  
J. S. Harris ◽  
D. A. B. Miller
Keyword(s):  
Optical Waveguide ◽  
High Speed ◽  
Optical Switching ◽  
Optical Control ◽  
Surface Normal
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