Related Experiment Video
Updated: Feb 2, 2026
11:04
Control of Cell Geometry through Infrared Laser Assisted Micropatterning
Published on: July 10, 2021
3.9K
Electrohydrodynamic Direct-Writing Micropatterns with Assisted Airflow.
Jiaxin Jiang1, Xiang Wang2, Wenwang Li3
1Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361102, China. jiangjx@xmu.edu.cn.
Micromachines
|November 15, 2018
Summary
An airflow-assisted spinneret improves electrohydrodynamic direct-writing (EDW) by enhancing jet stability and deposition accuracy. This innovation enables the printing of complex patterns with high precision, advancing micro/nanosystems integration.
Area of Science:
- Materials Science
- Nanotechnology
- Fluid Dynamics
Background:
- Electrohydrodynamic direct-writing (EDW) is a high-resolution printing technology with potential for micro/nanosystems.
- Improving line width and deposition accuracy are critical for broader EDW applications.
- Existing EDW methods face challenges with jet stability and external interferences.
Purpose of the Study:
- To design and validate an airflow-assisted spinneret for electrohydrodynamic direct-writing.
- To enhance jet stability and deposition accuracy in the EDW process.
- To enable the printing of complex patterns with reduced positioning errors.
Main Methods:
- Designed an airflow-assisted spinneret introducing laminar airflow to the EDW process.
- Simulated flow and electric fields to optimize spinneret design.
- Conducted experimental validation of the spinneret and EDW process.
Main Results:
- The airflow-assisted spinneret demonstrated stable jet ejection in EDW.
- Assisted airflow improved printed pattern uniformity and deposition position accuracy.
- Complex patterns were printed with positioning errors below 5%.
Conclusions:
- The airflow-assisted spinneret is an effective method for improving EDW performance.
- This technology promotes the integration of micro/nanosystems through precise pattern deposition.
- Further applications of EDW in microfabrication are facilitated by this advancement.
More Related Videos
Related Concept Videos
01:11Guidelines for Writing Outcome
3.9K
When developing expected outcomes for a patient care plan, the nurse should adhere to the following recommendations:
Patient outcomes reflect the patient's response to the goal rather than what the nurse aims to achieve. Terminology should be observable and measurable to avoid the reader's interpretation. The desired outcome should be realistic and achievable in the designated care timeframe. Expected outcomes should align with adjunctive therapies. The outcome should enhance care...
Patient outcomes reflect the patient's response to the goal rather than what the nurse aims to achieve. Terminology should be observable and measurable to avoid the reader's interpretation. The desired outcome should be realistic and achievable in the designated care timeframe. Expected outcomes should align with adjunctive therapies. The outcome should enhance care...
3.9K
01:09Directing Effect of Substituents: meta-Directing Groups
6.0K
Substituents on the benzene ring that direct an incoming electrophile to undergo substitution at the meta position are called meta directors. All meta directors either have a positive charge on the atom directly bonded to the ring or a partial positive charge. These groups function by withdrawing electrons from the ring through inductive and resonance effects. Consider the carbocation intermediates formed upon the addition of an electrophile on nitrobenzene at the...
6.0K
01:14Directing Effect of Substituents: ortho–para-Directing Groups
8.5K
Ortho–para directors are substituent groups attached to the benzene ring and direct the addition of an electrophile to the positions ortho or para to the substituent. All electron-donating groups are considered ortho–para directors. They donate electrons to the ring and make the ring more electron-rich. The ring is therefore susceptible to the addition of electrophiles. Substituents such as amino, hydroxy, or alkoxy, containing lone pairs on the atom adjacent to the ring, donate...
8.5K
01:14Directional Terms
16.4K
Directional terms are essential for describing the relative locations of different body structures. For instance, an anatomist might describe one band of tissue as "inferior to" another, or a physician might describe a tumor as "superficial to" a deeper body structure. These terms often use comparative terms in pairs to trace out the relative locations of one body part to another or descriptions of body tissues like the deeper ones from superficially present with reference to...
16.4K
01:25Directional Relays
614
Directional relays, essential for managing unidirectional fault currents, enhance the safety and efficiency of power systems. On power lines equipped with directional relays, faults downstream (to the right) of the current transformer typically cause the fault current to lag the bus voltage by approximately 90 degrees, known as the forward direction. In contrast, upstream (left-side) faults may result in the fault current leading the bus voltage by nearly 90 degrees, termed the reverse...
614
01:11Direct Motor Pathways
4.5K
The direct motor pathways, also known as the pyramidal tracts, are a group of neural pathways that originate in the brain and descend through the spinal cord. They control the voluntary movement of the body. There are two major direct motor pathways: the corticospinal and the corticobulbar tracts.
The corticospinal tract is responsible for the voluntary movement of the limbs and trunk. It originates in the cerebral cortex of the brain and descends through the cerebrum's internal capsule and...
The corticospinal tract is responsible for the voluntary movement of the limbs and trunk. It originates in the cerebral cortex of the brain and descends through the cerebrum's internal capsule and...
4.5K