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Nano and micro architectures for self-propelled motors

View Article: PubMed Central - PubMed

ABSTRACT

Self-propelled micromotors are emerging as important tools that help us understand the fundamentals of motion at the microscale and the nanoscale. Development of the motors for various biomedical and environmental applications is being pursued. Multiple fabrication methods can be used to construct the geometries of different sizes of motors. Here, we present an overview of appropriate methods of fabrication according to both size and shape requirements and the concept of guiding the catalytic motors within the confines of wall. Micromotors have also been incorporated with biological systems for a new type of fabrication method for bioinspired hybrid motors using three-dimensional (3D) printing technology. The 3D printed hybrid and bioinspired motors can be propelled by using ultrasound or live cells, offering a more biocompatible approach when compared to traditional catalytic motors.

No MeSH data available.


Acoustic set up of a piezo disc with 3.4 MHz resonance frequency, connected to an amplifier and an arbitrary waveform generator.
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Figure 6: Acoustic set up of a piezo disc with 3.4 MHz resonance frequency, connected to an amplifier and an arbitrary waveform generator.

Mentions: To generate the motion of the artificial sperm, an external stimulus is provided in the form of acoustic energy. A piezo disc with a resonance frequency of 3.4 MHz is connected to an arbitrary wave generator to introduce a 1 MHz acoustic signal in the system (figure 6). The acoustic stimulation generates nodal fields with high- and low-pressure areas across the system, presenting a unique pattern for each frequency [65, 66].


Nano and micro architectures for self-propelled motors
Acoustic set up of a piezo disc with 3.4 MHz resonance frequency, connected to an amplifier and an arbitrary waveform generator.
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC5036491&req=5

Figure 6: Acoustic set up of a piezo disc with 3.4 MHz resonance frequency, connected to an amplifier and an arbitrary waveform generator.
Mentions: To generate the motion of the artificial sperm, an external stimulus is provided in the form of acoustic energy. A piezo disc with a resonance frequency of 3.4 MHz is connected to an arbitrary wave generator to introduce a 1 MHz acoustic signal in the system (figure 6). The acoustic stimulation generates nodal fields with high- and low-pressure areas across the system, presenting a unique pattern for each frequency [65, 66].

View Article: PubMed Central - PubMed

ABSTRACT

Self-propelled micromotors are emerging as important tools that help us understand the fundamentals of motion at the microscale and the nanoscale. Development of the motors for various biomedical and environmental applications is being pursued. Multiple fabrication methods can be used to construct the geometries of different sizes of motors. Here, we present an overview of appropriate methods of fabrication according to both size and shape requirements and the concept of guiding the catalytic motors within the confines of wall. Micromotors have also been incorporated with biological systems for a new type of fabrication method for bioinspired hybrid motors using three-dimensional (3D) printing technology. The 3D printed hybrid and bioinspired motors can be propelled by using ultrasound or live cells, offering a more biocompatible approach when compared to traditional catalytic motors.

No MeSH data available.