Comparative studies on the implantation of nano platinum black and pure platinum electrodes in the rabbit orbicularis oculi muscle

AbstractObjective:To study the interactive influence of implanted nano platinum black electrodes (as compared with pure platinum electrodes) on rabbit orbicularis oculi muscle morphology and function.Methods:The influence of the two types of electrode on the orbicularis oculi muscle was monitored in a rabbit model of facial paralysis. Biological electric current and exciting current were administered to biological tissue, and morphological and functional changes were identified. Changes in orbicularis oculi muscle contraction, electrode configuration and performance associated with long-term electrical stimulation were observed over 28 days of implantation.Results:The nano platinum black electrode was superior to the pure platinum electrode in the following aspects: morphology and functionality, electrical excitation function of the orbicularis oculi muscle (as assessed by electromyography), muscle contraction function and biological tissue changes. Furthermore, the nano platinum black electrode features had good stability.Conclusion:Microelectrode surface modification with nano platinum black can effectively increase the microelectrode surface area and improve electrode performance, and is associated with good tissue compatibility.

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Parylene-based implantable platinum-black coated wire microelectrode for orbicularis oculi muscle electrical stimulation

Biomedical Microdevices ◽

10.1007/s10544-011-9613-8 ◽

2011 ◽

Vol 14 (2) ◽

pp. 367-373 ◽

Cited By ~ 25

Author(s):

Yue-Feng Rui ◽

Jing-Quan Liu ◽

Bin Yang ◽

Ke-Yong Li ◽

Chun-Sheng Yang

Keyword(s):

Electrical Stimulation ◽

Platinum Black ◽

Orbicularis Oculi Muscle ◽

Orbicularis Oculi ◽

Coated Wire

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Orbicularis Oculi Muscle Size and Function: Exploring the Influence of Aging and Exercise Training

Cosmetics ◽

10.3390/cosmetics8020029 ◽

2021 ◽

Vol 8 (2) ◽

pp. 29

Author(s):

Takashi Abe ◽

Jeremy P. Loenneke

Keyword(s):

Older Adults ◽

Exercise Training ◽

Muscle Hypertrophy ◽

Peak Velocity ◽

Muscle Thickness ◽

Muscle Size ◽

Sphincter Muscle ◽

Orbicularis Oculi Muscle ◽

Orbicularis Oculi ◽

And Function

The orbicularis oculi muscle is the sphincter muscle of the eyelids that blinks and closes the eyes. In this review, our aim was threefold: (1) to introduce the performance characteristics of blinking activity in young and older adults, (2) to discuss the influence of aging on the orbicularis oculi muscle in healthy adults, and (3) to provide information about the effect of facial exercise training on the orbicularis oculi muscle. To achieve the purpose of this review, a search using two electronic databases (PubMed and Scopus) and a search engine (Google Scholar) was conducted. The amplitude and peak velocity of spontaneously blinking behavior, which is an index of muscle function of the orbicularis oculi, appear to be affected by aging. The muscle thickness of the orbicularis oculi tends to be low in older adults, but there are issues that need to be examined further, such as differences in sex and measurement positions. There was no study on the effect of exercise training; however, the results of a highly trained man indicate that the orbicularis oculi muscles might elicit muscle hypertrophy through non-traditional resistance exercise.

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