Publications by authors named "Ali Fuat Ergenc"

A novel, in situ, low-cost and facile method has been developed to fabricate flexible NO sensors capable of operating at ambient temperature, addressing the urgent need for monitoring this toxic gas. This technique involves the synthesis of highly porous structures, as well as the specific development of laser-induced graphene (LIG) and its heterostructures with SnO, all through laser scribing. The morphology, phases, and compositions of the sensors were analyzed using scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and Raman spectroscopy.

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This paper presents the development of a novel micro drill device for single living organisms. Currently, microinjection for mice and some other species is performed with the help of piezo-driven actuators with a very small amount of mercury column in the proximal end of the pipette in order to increase the success rate. However, the toxicity of mercury exhibits a risk factor both for the operator and the injected cells.

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Intracytoplasmic sperm injection (ICSI) is a broadly utilized assisted reproductive technology. A number of technologies for this procedure have evolved lately, such as the most commonly utilized piezo-assisted ICSI technique (P-ICSI). An important problem with this technique, however, is that it requires a small amount of mercury to stabilize the tip of the penetration micropipette.

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Intracytoplasmic sperm injection (ICSI) is an important assisted reproductive technology (ART). Due to deployment difficulties and low efficiency of the earlier (conventional) version of ICSI, especially in the mouse, a piezo-assisted ICSI technique had evolved as a popular ART methodology in recent years. An important and remaining problem with this technique, however, is that it requires small amounts of mercury to stabilize the pipette tip when piezoelectric force pulses are applied.

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ICSI (intracytoplasmic sperm injection) procedure is one of the most commonly used cellular-injection processes. In ICSI a drawn glass pipette is pushed against the biological cell and a series of force impulses are exerted on it axially to achieve the piercing through the zona and the membrane in sequence for the ensuing injection. In most advanced applications a piezo actuator creates this impulsive forcing.

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A novel noncontact sensor is developed to monitor the displacements of a drawn glass pipette tip. These pipettes are commonly used in various cellular-injection applications, from in vitro fertilization to cloning. The physics of the underlying cellular-piercing process, however, is quite complex and presently not fully understood primarily due to the absence of appropriate motion sensors.

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