Synthetic Vocal Fold
Synthetic Vocal Fold - Related Videos
10:16
Synthetic, Multi-Layer, Self-Oscillating Vocal Fold Model Fabrication
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Cited by 49 •
2011
The methodology for fabricating synthetic vocal fold models is described. The models are life-sized and mimic the multi-layer structure of the human vocal folds. Results show the models to self-oscillate at pressures comparable to lung pressure and demonstrate flow-induced vibratory responses that are similar to those of human vocal folds.
11:11
Construction and Characterization of a Novel Vocal Fold Bioreactor
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Cited by 8 •
2014
A novel vocal fold bioreactor capable of delivering physiologically relevant, vibratory stimulation to cultured cells is constructed and characterized. This dynamic culture device, when combined with a fibrous poly(ε-caprolactone) scaffold, creates a vocal fold-mimetic environment that modulates the behaviors of mesenchymal stem cells.
10:13
Hemi-laryngeal Setup for Studying Vocal Fold Vibration in Three Dimensions
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Cited by 12 •
2017
This paper introduces a protocol for the preparation of hemi-larynx specimens facilitating a multi-dimensional view of vocal fold vibration, in order to investigate various biophysical aspects of voice production in humans and non-human mammals.
09:58
Investigating the Three-dimensional Flow Separation Induced by a Model Vocal Fold Polyp
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Cited by 2 •
2014
Vocal fold polyps can disrupt vocal fold dynamics and thus can have devastating consequences on a patient's ability to communicate. Three-dimensional flow separation induced by a wall-mounted model polyp and its impact on the wall pressure loading are examined using particle image velocimetry, skin friction line visualization, and wall pressure measurements.
07:17
Preparation of the Rat Vocal Fold for Neuromuscular Analyses
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Cited by 3 •
2020
This protocol describes methods used to prepare rat vocal folds for histochemical neuromuscular study.
FAQs
Sound production begins when airflow from the lungs interacts with the construct’s flexible material. That interaction supplies aerodynamic energy, which drives self-sustained vibration rather than requiring a separately imposed oscillation. The vibration then converts the incoming energy into acoustic energy, allowing investigators to examine how airflow and material motion combine during phonation.
Its layered material gives researchers a way to examine tissue mechanics as part of sound production. Flexibility allows the construct to respond to airflow, while the layered design provides a structural platform for studying how material behavior relates to vibration. This connection is important when evaluating whether an engineered model can reproduce key functional features of native vocal folds.
Synthetic vocal fold models differ from native tissue mainly in their experimental role: they can be examined under controlled laboratory conditions while researchers observe airflow, vibration, and material mechanics. This controllability supports systematic study of phonation and voice disorders, while native vocal folds remain the biological reference that the constructs are designed to reproduce.
Phonation outcomes depend on the interaction among lung airflow, material flexibility, layered structure, and tissue mechanics. Changing or characterizing these features can alter how self-sustained vibration develops and how aerodynamic energy becomes acoustic energy. Studying the variables together is valuable because voice behavior reflects a coupled airflow, mechanical, and acoustic process rather than a single material property.
A laboratory study can place a synthetic vocal fold construct in a controlled phonation setup, expose it to airflow representing the lung-driven input, and examine its resulting vibration and sound. Researchers can then relate observed behavior to material mechanics and airflow. This workflow produces a controlled platform for testing questions about vocal function without relying only on native tissue.
Researchers use these constructs to investigate voice disorders by linking altered vibration with airflow and tissue mechanics. Because the system is controllable, it can support comparison of phonation behavior under defined laboratory conditions and help evaluate potential treatments. The resulting observations may clarify how damage or tissue loss affects sound production and guide voice-restoration research.
In bioengineering, synthetic vocal folds connect biomaterials, biomechanics, and tissue engineering. These fields contribute complementary goals: biomaterials provide the engineered material context, biomechanics addresses movement and force, and tissue engineering supports development of replacement constructs. Together, they create a framework for improving future laryngeal implant designs and exploring approaches to restore voice after tissue damage or loss.