Creating 3D-printed materials that shrink more precisely
From houses to hearing aids, three-dimensional (3D) printing is revolutionizing how we create complex structures at scale. Zooming down to the micro and nano levels, a process known as two-photon polymerization lithography (TPL) allows scientists and engineers to construct objects with microscopic precision, which has wide-reaching implications for industries ranging from medicine to manufacturing.
In computing and communication, for instance, TPL can be used to develop new optical materials, such as photonic crystals that can manipulate light in new ways. However, despite its promise, some challenges to fully harnessing its potential still exist. Chief among these is the challenge of achieving uniform shrinkage and feature sizes below the wavelength of visible light, which is essential when it comes to advanced light manipulation.
Addressing this challenge, a team of researchers led by Professor Joel Yang from the Singapore University of Technology and Design's (SUTD) Engineering Product Development pillar —in collaboration with their counterparts from the Industrial Technology Center of Wakayama Prefecture in Japan—introduced a new method that ensures even shrinkage of 3D-printed structures when heat treated. This further refines the usage of TPL in producing high-precision, nanoscale features.
In Duel Links, I got a new Dennis event and also unlocked him!
Dennis: Shay...
Shay: You're... Dennis!
[flashback]
Melissa Trail: There's only one high-flyin' monster on the field now - and it's not Trapeze Magician!
Shay: Drop the facade, Dennis! I'm going to show everyone the true you! When Trapeze Magician leaves the field, Target Flag lets me see what you're hiding in your hand! It's time for the real Dennis to now be revealed!
Dennis: Is this what you wanted to see? [shows Polymerization]
Shay: I knew it! Only Duelists from a certain dimension use that card!
Dennis: Now that the cat's out of the bag, I can hit you with everything I've got! I Fusion Summon! The ground shaking Chaos Ancient Gear Giant! Bet you never saw that coming, right!? Thanks to you, I can now let loose as I have nothing left to hide! These potholes are wreaking havoc on my game! If I drive over one more bump I'm gonna lose my mind!
Shay: Even if you suffer, it won't make up for the pain you caused. But I'll get to reap my revenge! For all the victims you hunted down - this is payback! Vengeful Vengeance!
Dennis: Ahhhhhh!
[end flashback]
Shay: After everything you did to trick the Lancers, what does Duel Academy want with me now?
Dennis: I just...wanted to apologize to you. And the Lancers. Actually, not just the Lancers - but to everyone. It's my fault that this world stopped smiling.
Shay: Apologize!? It's too late for that! You think that'll make up for everything that you've done?
Dennis: Of course not. Nothing I do can change the past. But if I can make Heartland City and the Xyz Dimension smile again, I have to try! I know not everyone will accept me...but it's the least I can do.
Shay: If you really feel that way...Then battle me! You want to make everyone laugh again? Then why don't you start with me!
Dennis: Okay! Why not start with the toughest! My Dueltaining will turn your frown upside down!
Dennis: No matter how many times I apologize, I can't undo what I've already done. That's a reality I have to accept. But I can't allow what i did to cause kids to stop smiling forever! With my Dueltaining, I know I can make them laugh again! That's the least I can do to make up for my past! The show must always go on! Direct your eyes to the skies as I present to you a swinging star performer! Xyz Summon! Rank 4 Performage Trapeze Magician! Trapeze Magician and I are here to make you smile ear-to-ear year after year! It's showtime!
At the start of prophase, microtubules, polymerizing on the surface of the nuclear envelope, begin to gather at two foci on opposite sides of the nucleus, initiating spindle formation (see Figure 1.30).
"Plant Physiology and Development" int'l 6e - Taiz, L., Zeiger, E., Møller, I.M., Murphy, A.
The concept is based on the reversible addition of radicals to carbon-sulfur double bonds in thiocarbonyl thio transfer reagents (R-S(C=S)Z (figure 26.26).
"Chemistry" 2e - Blackman, A., Bottle, S., Schmid, S., Mocerino, M., Wille, U.
A hydrothermal autoclave is a specialized pressure vessel used in scientific laboratories and industrial settings for various applications, particularly in the fields of chemistry, materials science, and biology. Corrosion-resistant materials.
3D printing precisely: Low-cost error compensation for fabrication of high-precision microstructures
In today's fast-paced technological landscape, the proverb "the bigger the better" was turned upside down and a race to make everything smaller has started. From miniature optical components to micro-scale medical devices, the quest for creating ever smaller yet more intricate structures has led to remarkable progress in a wide range of fields.
An important manufacturing technique enabling these advancements is two-photon polymerization (TPP) 3D printing. However, especially in the field of micro-optics, even errors in the nanometer range can have significant consequences. Thus, it is essential to understand and compensate for as many systematic errors in the printing process as possible.
Research recently published in the Journal of Optical Microsystems delves into the critical challenge of correcting tilt and curvature errors in TPP printing.