Hole Array Pattern
Hole Array Pattern - Related Videos
03:32
Constructing Patterned Neuronal Circuits on a Multi-Electrode Array
0 Views •
2025
This video demonstrates the process of culturing neuronal cells on a patterned multi-electrode array (MEA) to establish modular neuronal networks. This method allows the study of neural signal transmission and cellular interactions.
06:25
Fabrication of a Master Mold for Microneedles with a Micron-sized Air-vent Hole
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2025
This article introduces a unique method for fabricating master molds with an air-vent hole to prevent air entrapment during viscous polymer casting, enabling the fabrication of gelatin microneedles with sharp tips. By reducing the casting volume of high-viscosity gelatin, thin-walled hollow pyramidal microneedles could also be fabricated.
11:42
A Paired Bead and Magnet Array for Molding Microwells with Variable Concave Geometries
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Cited by 8 •
2018
This manuscript introduces a robust method of fabricating concave microwells without the need for complex high-cost facilities. Using magnetic force, steel beads, and a through-hole array, several hundred microwells were formed in a 3 cm x 3 cm polydimethylsiloxane (PDMS) substrate.
01:10
Detection of Black Holes
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2023
Although black holes were theoretically postulated in the 1920s, they remained outside the domain of observational astronomy until the 1970s. Their closest cousins are neutron stars, which are composed almost entirely of neutrons packed against each other, making them extremely dense. A neutron star has the same mass as the Sun but its diameter is only a few kilometers. Therefore, the escape velocity from their surface is close to the speed of light. Not until the 1960s, when the first neutron...
13:36
Scalable Fluidic Injector Arrays for Viral Targeting of Intact 3-D Brain Circuits
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Cited by 10 •
2010
Controlling and analyzing neural circuits in vivo would be facilitated by a technology for delivery of viruses and other reagents to desired 3-dimensional sets of brain regions. We demonstrate customized fluidic injector array fabrication, and delivery of virally-encoded optical sensitizers, enabling optical manipulation of complex brain circuits.
FAQs
Diameter, spacing, shape, and periodicity determine how much of the patterned material is open and how the openings are distributed. Changing these variables can alter the passage of light, fluids, or particles and can change how mechanical forces interact with the component. Engineers therefore tune geometry to match the desired transport or structural function.
Periodicity adds control beyond the size of an individual opening because it establishes a repeated spatial arrangement across the surface or component. That arrangement can influence the collective passage and interaction of light, fluids, particles, or forces. In engineering designs, adjusting repetition helps connect local hole geometry with overall device performance.
Drilling, etching, lithography, and additive manufacturing offer different routes for producing the same general class of patterned structure. The choice is linked to the scale at which the pattern must be made and to whether it is formed in a surface, film, membrane, or solid component. Fabrication therefore becomes part of performance-oriented design, not merely a final production step.
A practical workflow begins by identifying whether the design must control light, fluids, particles, or mechanical forces. Engineers then tune hole diameter, spacing, shape, and periodicity, select a fabrication method capable of producing the required scale, and evaluate the resulting component or device for its intended function. This sequence links specifications to geometry and manufacturing.
Applications include filters, porous materials, sensors, photonic structures, and lightweight components. In filters and porous materials, the pattern supports controlled passage through the structure; in sensors and photonic structures, it provides a geometry for controlling interactions. For lightweight components, the arrangement contributes to structural designs in which function and material use must be considered together.
Removing material through openings can support lightweight component design while geometry remains an engineering control variable. The same patterned structure can be tuned to manage transport or mechanical interaction, allowing designers to pursue lower mass alongside a specified functional response. This is relevant when overall device performance depends on both structural arrangement and controlled passage.