• About
  • Advertise
  • Privacy & Policy
  • Contact
Wednesday, November 29, 2023
Earth-News
  • Home
  • Business
  • Entertainment
    7 of the best RPG Maker horror games you should check out

    7 of the best RPG Maker horror games you should check out

    Review: SteamWorld Build

    Review: SteamWorld Build

    Extraction dungeon crawler Dungeon Stalkers begins open playtest

    Extraction dungeon crawler Dungeon Stalkers begins open playtest

    Bear and Breakfast brings cozy management to PlayStation on December 12

    Bear and Breakfast brings cozy management to PlayStation on December 12

    Bethesda is responding to negative reviews of Starfield on Steam

    Bethesda is responding to negative reviews of Starfield on Steam

    RPGCast – Episode 450: “In VR, The Shark Jumps You”

    RPGCast – Episode 450: “In VR, The Shark Jumps You”

  • General
  • Health
  • News
    Brittany Higgins tells court she did not want to be ‘complicit’ in cover-up

    Brittany Higgins tells court she did not want to be ‘complicit’ in cover-up

    Dodson mourns ‘divided nation’ after Voice defeat in farewell speech

    Dodson mourns ‘divided nation’ after Voice defeat in farewell speech

    Harvey Norman executive pay strike not our fault, says Gerry Harvey

    Harvey Norman executive pay strike not our fault, says Gerry Harvey

    Perth tradie stood guard over victim of alleged machete attack

    Perth tradie stood guard over victim of alleged machete attack

    Kwinana port design selected but expect costs and timeframes to creep up

    Kwinana port design selected but expect costs and timeframes to creep up

    In Nigeria’s Muslim North, Sharia Police Change Tack On Influencers

    In Nigeria’s Muslim North, Sharia Police Change Tack On Influencers

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Tech
    Meta faces GDPR complaint over processing personal data without ‘free consent’

    Meta faces GDPR complaint over processing personal data without ‘free consent’

    IT Sustainability Think Tank: Circular economy concept picks up speed in 2023

    IT Sustainability Think Tank: Circular economy concept picks up speed in 2023

    Making artificial intelligence fit for all our human futures

    Making artificial intelligence fit for all our human futures

    CCRC refers two posthumous subpostmaster appeals to Crown Court

    CCRC refers two posthumous subpostmaster appeals to Crown Court

    UK retailer The Very Group embarks on GenAI push with AWS

    UK retailer The Very Group embarks on GenAI push with AWS

    Some Crypto Pioneers Steer Clear As The Spot Bitcoin Race Intensifies

    Some Crypto Pioneers Steer Clear As The Spot Bitcoin Race Intensifies

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    7 of the best RPG Maker horror games you should check out

    7 of the best RPG Maker horror games you should check out

    Review: SteamWorld Build

    Review: SteamWorld Build

    Extraction dungeon crawler Dungeon Stalkers begins open playtest

    Extraction dungeon crawler Dungeon Stalkers begins open playtest

    Bear and Breakfast brings cozy management to PlayStation on December 12

    Bear and Breakfast brings cozy management to PlayStation on December 12

    Bethesda is responding to negative reviews of Starfield on Steam

    Bethesda is responding to negative reviews of Starfield on Steam

    RPGCast – Episode 450: “In VR, The Shark Jumps You”

    RPGCast – Episode 450: “In VR, The Shark Jumps You”

  • General
  • Health
  • News
    Brittany Higgins tells court she did not want to be ‘complicit’ in cover-up

    Brittany Higgins tells court she did not want to be ‘complicit’ in cover-up

    Dodson mourns ‘divided nation’ after Voice defeat in farewell speech

    Dodson mourns ‘divided nation’ after Voice defeat in farewell speech

    Harvey Norman executive pay strike not our fault, says Gerry Harvey

    Harvey Norman executive pay strike not our fault, says Gerry Harvey

    Perth tradie stood guard over victim of alleged machete attack

    Perth tradie stood guard over victim of alleged machete attack

    Kwinana port design selected but expect costs and timeframes to creep up

    Kwinana port design selected but expect costs and timeframes to creep up

    In Nigeria’s Muslim North, Sharia Police Change Tack On Influencers

    In Nigeria’s Muslim North, Sharia Police Change Tack On Influencers

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Tech
    Meta faces GDPR complaint over processing personal data without ‘free consent’

    Meta faces GDPR complaint over processing personal data without ‘free consent’

    IT Sustainability Think Tank: Circular economy concept picks up speed in 2023

    IT Sustainability Think Tank: Circular economy concept picks up speed in 2023

    Making artificial intelligence fit for all our human futures

    Making artificial intelligence fit for all our human futures

    CCRC refers two posthumous subpostmaster appeals to Crown Court

    CCRC refers two posthumous subpostmaster appeals to Crown Court

    UK retailer The Very Group embarks on GenAI push with AWS

    UK retailer The Very Group embarks on GenAI push with AWS

    Some Crypto Pioneers Steer Clear As The Spot Bitcoin Race Intensifies

    Some Crypto Pioneers Steer Clear As The Spot Bitcoin Race Intensifies

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Science

Arrays of quantum rods could enhance TVs or virtual reality devices, research suggests

August 12, 2023
in Science
Arrays of quantum rods could enhance TVs or virtual reality devices, research suggests
Share on FacebookShare on Twitter

Arrays of quantum rods could enhance TVs or virtual reality devices

MIT engineers have used DNA origami scaffolds to create precisely structured arrays of quantum rods, which could be incorporated into LEDs for televisions or virtual reality devices. Credit: Dr. Xin Luo, BatheBioNanoLab

Flat screen TVs that incorporate quantum dots are now commercially available, but it has been more difficult to create arrays of their elongated cousins, quantum rods, for commercial devices. Quantum rods can control both the polarization and color of light, to generate 3D images for virtual reality devices.

Using scaffolds made of folded DNA, MIT engineers have come up with a new way to precisely assemble arrays of quantum rods. By depositing quantum rods onto a DNA scaffold in a highly controlled way, the researchers can regulate their orientation, which is a key factor in determining the polarization of light emitted by the array. This makes it easier to add depth and dimensionality to a virtual scene.

“One of the challenges with quantum rods is: How do you align them all at the nanoscale so they’re all pointing in the same direction?” says Mark Bathe, an MIT professor of biological engineering and the senior author of the new study. “When they’re all pointing in the same direction on a 2D surface, then they all have the same properties of how they interact with light and control its polarization.”

MIT postdocs Chi Chen and Xin Luo are the lead authors of the paper, which appeared in Science Advances. Robert Macfarlane, an associate professor of materials science and engineering; Alexander Kaplan Ph.D. and Moungi Bawendi, the Lester Wolfe Professor of Chemistry, are also authors of the study.

Table of Contents

  • Nanoscale structures
  • Assembling the puzzle

Nanoscale structures

Over the past 15 years, Bathe and others have led in the design and fabrication of nanoscale structures made of DNA, also known as DNA origami. DNA, a highly stable and programmable molecule, is an ideal building material for tiny structures that could be used for a variety of applications, including delivering drugs, acting as biosensors, or forming scaffolds for light-harvesting materials.

Bathe’s lab has developed computational methods that allow researchers to simply enter a target nanoscale shape they want to create, and the program will calculate the sequences of DNA that will self-assemble into the right shape. They also developed scalable fabrication methods that incorporate quantum dots into these DNA-based materials.

In a 2022 paper, Bathe and Chen showed that they could use DNA to scaffold quantum dots in precise positions using scalable biological fabrication. Building on that work, they teamed up with Macfarlane’s lab to tackle the challenge of arranging quantum rods into 2D arrays, which is more difficult because the rods need to be aligned in the same direction.

Existing approaches that create aligned arrays of quantum rods using mechanical rubbing with a fabric or an electric field to sweep the rods into one direction have had only limited success. This is because high-efficiency light-emission requires the rods to be kept at least 10 nanometers from each other, so that they won’t “quench,” or suppress, their neighbors’ light-emitting activity.

To achieve that, the researchers devised a way to attach quantum rods to diamond-shaped DNA origami structures, which can be built at the right size to maintain that distance. These DNA structures are then attached to a surface, where they fit together like puzzle pieces.

“The quantum rods sit on the origami in the same direction, so now you have patterned all these quantum rods through self-assembly on 2D surfaces, and you can do that over the micron scale needed for different applications like microLEDs,” Bathe says. “You can orient them in specific directions that are controllable and keep them well-separated because the origamis are packed and naturally fit together, as puzzle pieces would.”

Assembling the puzzle

As the first step in getting this approach to work, the researchers had to come up with a way to attach DNA strands to the quantum rods. To do that, Chen developed a process that involves emulsifying DNA into a mixture with the quantum rods, then rapidly dehydrating the mixture, which allows the DNA molecules to form a dense layer on the surface of the rods.

This process takes only a few minutes, much faster than any existing method for attaching DNA to nanoscale particles, which may be key to enabling commercial applications.

“The unique aspect of this method lies in its near-universal applicability to any water-loving ligand with affinity to the nanoparticle surface, allowing them to be instantly pushed onto the surface of the nanoscale particles. By harnessing this method, we achieved a significant reduction in manufacturing time from several days to just a few minutes,” Chen says.

These DNA strands then act like Velcro, helping the quantum rods stick to a DNA origami template, which forms a thin film that coats a silicate surface. This thin film of DNA is first formed via self-assembly by joining neighboring DNA templates together via overhanging strands of DNA along their edges.

The researchers now hope to create wafer-scale surfaces with etched patterns, which could allow them to scale their design to device-scale arrangements of quantum rods for numerous applications, beyond only microLEDs or augmented reality/virtual reality.

“The method that we describe in this paper is great because it provides good spatial and orientational control of how the quantum rods are positioned. The next steps are going to be making arrays that are more hierarchical, with programmed structure at many different length scales. The ability to control the sizes, shapes, and placement of these quantum rod arrays is a gateway to all sorts of different electronics applications,” Macfarlane says.

“DNA is particularly attractive as a manufacturing material because it can be biologically produced, which is both scalable and sustainable, in line with the emerging U.S. bioeconomy. Translating this work towards commercial devices by solving several remaining bottlenecks, including switching to environmentally safe quantum rods, is what we’re focused on next,” Bathe adds.

More information:
Chi Chen et al, Ultrafast Dense DNA Functionalization of Quantum Dots and Rods for Scalable 2D Array Fabrication with Nanoscale Precision, Science Advances (2023). DOI: 10.1126/sciadv.adh8508. www.science.org/doi/10.1126/sciadv.adh8508

Citation:
Arrays of quantum rods could enhance TVs or virtual reality devices, research suggests (2023, August 11)
retrieved 11 August 2023
from https://phys.org/news/2023-08-arrays-quantum-rods-tvs-virtual.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Phys.org – https://phys.org/news/2023-08-arrays-quantum-rods-tvs-virtual.html

Tags: ArraysQuantumscience
Previous Post

Scientists pioneer new machine learning model for corrosion-resistant alloy design

Next Post

Hundred-year storms? That’s how long they last on Saturn

Retail sales down in October 

Retail sales down in October 

November 29, 2023
Government’s quick IR move sparks debate

Government’s quick IR move sparks debate

November 29, 2023
Majority of SMEs opt for dual capital channels as business investment surges

Majority of SMEs opt for dual capital channels as business investment surges

November 29, 2023
How do you use data analytics for business insights?

How do you use data analytics for business insights?

November 29, 2023
The Importance of Identity Management in Security

The Importance of Identity Management in Security

November 29, 2023
Why data virtualization is critical for business success

Why data virtualization is critical for business success

November 29, 2023
The hybrid approach: Get the best of both mainframe and cloud

The hybrid approach: Get the best of both mainframe and cloud

November 29, 2023
Dear Oracle Cloud…I need my own space

Dear Oracle Cloud…I need my own space

November 29, 2023
Brittany Higgins tells court she did not want to be ‘complicit’ in cover-up

Brittany Higgins tells court she did not want to be ‘complicit’ in cover-up

November 29, 2023
Dodson mourns ‘divided nation’ after Voice defeat in farewell speech

Dodson mourns ‘divided nation’ after Voice defeat in farewell speech

November 29, 2023

Categories

Archives

November 2023
M T W T F S S
 12345
6789101112
13141516171819
20212223242526
27282930  
« Oct    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (6,574)
  • Entertainment (6,927)
  • General (5,094)
  • Health (3,110)
  • News (7,584)
  • Science (5,141)
  • Sports (6,945)
  • Tech (5,155)

Recent News

Retail sales down in October 

Retail sales down in October 

November 29, 2023
Government’s quick IR move sparks debate

Government’s quick IR move sparks debate

November 29, 2023
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version

Arrays of quantum rods could enhance TVs or virtual reality devices, research suggests- Arrays of quantum rods could enhance TVs or virtual reality devices, research suggests * Arrays of quantum rods could enhance TVs or virtual reality devices, research suggests | Arrays of quantum rods could enhance TVs or virtual reality devices, research suggests | Arrays of quantum rods could enhance TVs or virtual reality devices, research suggests | Arrays of quantum rods could enhance TVs or virtual reality devices, research suggests | Arrays of quantum rods could enhance TVs or virtual reality devices, research suggests | Arrays of quantum rods could enhance TVs or virtual reality devices, research suggests | Arrays of quantum rods could enhance TVs or virtual reality devices, research suggests | Arrays of quantum rods could enhance TVs or virtual reality devices, research suggests | | Arrays of quantum rods could enhance TVs or virtual reality devices, research suggests | | Arrays of quantum rods could enhance TVs or virtual reality devices, research suggests | | Arrays of quantum rods could enhance TVs or virtual reality devices, research suggests |