Study on the Perception Mechanism of Utricles Based on Bionic Models.
bionic macula (BM)
bionic macula with sand (BMS)
bionic utricle (BU)
sensory cell
surface symmetrical electrodes PVDF (polyvinylidene difluoride) fiber with metal core (SMPF) sensor
Journal
Biomimetics (Basel, Switzerland)
ISSN: 2313-7673
Titre abrégé: Biomimetics (Basel)
Pays: Switzerland
ID NLM: 101719189
Informations de publication
Date de publication:
23 Feb 2022
23 Feb 2022
Historique:
received:
21
01
2022
revised:
22
02
2022
accepted:
22
02
2022
entrez:
24
3
2022
pubmed:
25
3
2022
medline:
25
3
2022
Statut:
epublish
Résumé
The relationship between utricle diseases and structural lesions is not very clear in the clinic due to the complexity and delicacy of the utricle structure. Therefore, it is necessary to study the perception mechanism of the utricle. Imitating the sensory cells in the macula of the utricle, a symmetrical metal core PVDF fiber (SMPF) was designed as a bionic hair sensor to fabricate a bionic macula (BM), a bionic macula with sand (BMS) and a bionic utricle (BU). Then experiments were carried out on them. This indicated the SMPF sensor can sense its bending deformation, which was similar to the sensory cell. The amplitude of the output charges of the SMPF in BMS and BU were significantly improved. The SMPF, whose electrode boundary was perpendicular to the impact direction, exhibited the largest output charges. The presence of otoliths and endolymph can improve the sensing ability of the utricle. The human brain can judge the direction of head linear accelerations based on the location of the sensory cell in the macula that produces the largest nerve signals. This provides a possibility of studying utricle abnormal functions in vitro in the future.
Sections du résumé
BACKGROUND
BACKGROUND
The relationship between utricle diseases and structural lesions is not very clear in the clinic due to the complexity and delicacy of the utricle structure. Therefore, it is necessary to study the perception mechanism of the utricle.
METHODS
METHODS
Imitating the sensory cells in the macula of the utricle, a symmetrical metal core PVDF fiber (SMPF) was designed as a bionic hair sensor to fabricate a bionic macula (BM), a bionic macula with sand (BMS) and a bionic utricle (BU). Then experiments were carried out on them.
RESULTS
RESULTS
This indicated the SMPF sensor can sense its bending deformation, which was similar to the sensory cell. The amplitude of the output charges of the SMPF in BMS and BU were significantly improved. The SMPF, whose electrode boundary was perpendicular to the impact direction, exhibited the largest output charges.
CONCLUSION
CONCLUSIONS
The presence of otoliths and endolymph can improve the sensing ability of the utricle. The human brain can judge the direction of head linear accelerations based on the location of the sensory cell in the macula that produces the largest nerve signals. This provides a possibility of studying utricle abnormal functions in vitro in the future.
Identifiants
pubmed: 35323185
pii: biomimetics7010028
doi: 10.3390/biomimetics7010028
pmc: PMC8945493
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : National Natural Science Foundation of China
ID : 51775483
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