Day and night camouflage skin has been developed that provides demand coverage

The extraordinary ability of cephalopods to hide in the background has prompted researchers to replicate their fascinating ability to camouflage in infrared (IR) and spectacular spectrum. Recent advances have provided a number of physical mechanisms for reproducing the hidden functionalities of cephalopods. However, most of the work focused only on visible camouflage or IR camouflage range: not double-mode single-device structures, which are visible in the right state and can be easily changed from IR mode. Credit: Seoul National University

Thermally controlled and undetectable active artificial skin, ranging from visible to infrared.

The extraordinary ability of cephalopods to hide in the background has prompted researchers to replicate their fascinating ability to camouflage in infrared (IR) and spectacular spectrum. Recent advances have provided a number of physical mechanisms for reproducing the hidden functionalities of cephalopods. However, most of the work focused only on visible camouflage or IR camouflage range: not double-mode single-device structures, which are visible in the right state and can be easily changed from IR mode.

Recently, Professor Seung hwan Ko’s team at Seoul National University of the Republic of Korea showed off the skin of active IR and camouflage on display, offering a cover platform required with a single entry variable during the day and night. Temperature (T). A soft thermoelectric device capable of cooling and heating functions as a backbone structure to adjust the surface area of ​​each pixel, thus allowing thermal camouflage in the IR range, consistent with ambient temperature. Ko’s team extended the camouflage area to the IR-visible spectrum by inserting the thermochromic liquid crystal into the surface that changes the reflection (R) of light depending on the temperature of the device, controlling the temperature to indicate multiple colors. The camouflage system as a whole encompasses two independent spectra of the “full spectrum,” controlling temperatures with a single soft structure.

Active Camouflage Artificial Skin Visible and Infrared

The extraordinary ability of cephalopods to hide in the background has prompted researchers to replicate their fascinating ability to camouflage in infrared (IR) and spectacular spectrum. Recent advances have provided a number of physical mechanisms for reproducing the hidden functionalities of cephalopods. However, most of the work focused only on visible camouflage or IR camouflage range: not double-mode single-device structures, which are visible under the right condition and can be easily changed from IR mode. Credit: Seoul National University

In addition to its ability to camouflage the device day and night, the device is highly “pixelated”. Thus, the camouflage skin can be mixed with sophisticated thermal and chromic background or camouflage when it is in transient motion from one background to another. Finally, the group showed real artificial camouflage skin in the human epidermis, on sophisticated backgrounds such as 1 bush or moving from one background to another, both in IR and in the spectacular spectrum.

Reference: Jinwoo Lee, Heayoun Sul, Yeongju Jung, Hyeonseok Kim, Seonggeun Han, Joonhwa Choi, Jaeho Shin, Dongkwan Kim, Jinwook Jung, Sukjoon Hong and Seung Hwan Ko, July 14, 2020, Advanced Functional Materials.
DOI: 10.1002 / adfm.202003328

Participating researchers: Jinwoo Lee (Seoul National University), Heayoun Sul (Seoul National University), Yeongju Jung (Seoul National University), Hyeonseok Kim (Seoul National University), Seonggeun Han (Seoul National University), Joonhwa Choi (Seoul University National), Jaeho Shin (Seoul National University), Dongkwan Kim (Seoul National University), Jinwook Jung (Seoul National University), Sukjoon Hong (Hanyang University) and Seung Hwan Ko (Seoul National University).

This work was supported by a grant from the National Research Foundation of Korea (NRF), funded through the Basic Science Research Program (2017R1A2B3005706).

Related articles

Comments

LEAVE A REPLY

Please enter your comment!
Please enter your name here

Share article

Latest articles

What is cosmic acceleration and dark energy?

as if U.S. Department of Energy February 27, 2021 The universe is expanding, and it is always expanding a little faster. Scientists call this expansion...

Artificial “Magnetic Texture” Caused by Graphene – Can Create Powerful Quantum Computers

The image shows eight electrodes around a 20-nanometer-thick magnet (white rectangle). Graphene does not show a thickness of less than one nanometer and...

LSD provides potentially viable treatment for anxiety and other mental disorders

McGill is studying a step in understanding the mechanism of the impact of psychedelics on the brain and the potential for therapeutic use. Researchers at...

River colors are changing in the United States

1984 - 2018: Over the past 35 years, one-third of the major rivers in the United States have changed their predominant color, often due to...

The crystals found in the stomach of a fossil bird complicate the advice of his diet

Restoration of Bohayornitis Sulkavis, a close relative of Bohayornis Guo, insect hunting. Loan: © S. Abramowicz, Dinosaur Institute, Los Angeles County Museum of...

Newsletter

Subscribe to stay updated.