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Multiphotonic Ablation and Electro-Capacitive Effects Exhibited by Candida albicans Biofilms
Jose Alberto Arano-Martinez1, José Alejandro Hernández-Benítez2, Hilario Martines-Arano3
1Sección de Estudios de Posgrado e Investigación, Escuela Superior de Ingeniería Mecánica y Eléctrica Unidad Zacatenco, Instituto Politécnico Nacional, Ciudad de México 07738, Mexico.
Bioengineering (Basel, Switzerland)
|April 27, 2024
Summary
Nonlinear optical effects in Candida albicans biofilms were studied using nanosecond laser pulses. This research enables new phototechnology for precise biological photodamage.
Area of Science:
- Biophysics
- Optical Physics
- Materials Science
Background:
- Candida albicans biofilms present challenges in medical settings.
- Understanding their interaction with light is crucial for developing new therapeutic strategies.
- Nonlinear optical phenomena can alter light-matter interactions in biological systems.
Purpose of the Study:
- To investigate the modification of ablation effects in C. albicans biofilms using nonlinear optical phenomena.
- To explore photodamage and nonlinear optical transmittance under varying laser intensities.
- To establish a foundation for photothermally activated phototechnology and high-precision photodamage.
Main Methods:
- Irradiation of C. albicans ATCC 10231 biofilms with nanosecond pulses from an Nd:YAG laser at 532 nm.
- Measurement of nonlinear optical absorption coefficient.
- Electrochemical response analysis.
- Application of fractional differential calculations for thermal transport modeling.
Main Results:
- Significant changes in ablation homogeneity were observed due to nonlinear optical effects.
- A nonlinear optical absorption coefficient of -2 × 10⁻⁶ cm/W was measured.
- Multiphotonic interactions led to more symmetric optical damage.
- Electrochemical studies revealed electro-capacitive behavior.
- Fractional differential equations effectively described thermal transport.
Conclusions:
- Nonlinear optical effects significantly influence photodamage in C. albicans biofilms.
- The findings support the development of advanced phototechnology for biological applications.
- Precise control over photodamage can be achieved by leveraging these nonlinear optical properties.
