|
|
|
|
|
|
| Researchers at Jilin University, China, reviewed recent progress in the study of Salvinia leaves and their artificial replicas. |
CHANGCHUN, CHINA, Sept 16, 2021 - (ACN Newswire) - Several plants and animals have evolved surfaces with long-term (i.e., days to months) air-retainability to prevent wetting and submersion. One example is Salvinia, a plant floating on water. The secret "how do they maintain an air-mattress" has been unraveled by researchers.
 | | Salvinia leaves and the eggbeater structures |
Researchers at Jilin University reviewed recent progress in the study of Salvinia leaves and their artificial replicas. "Salvinia has complex multicellular hairs on the upper side of its leaves, and each group of four hairs is connected at the terminal ends, forming an eggbeater structure. The hairs are coated with hydrophobic wax crystals, while the patches at the terminal ends of the hairs lack wax crystals and are, therefore, hydrophilic. These features make the air-water interface more stable, exhibiting long-term air-retention ability," says author Huichao Jin of Jilin University in Changchun, China.
Since the air-retention ability of Salvinia leaves was discovered, researchers began to fabricate artificial Salvinia leaves and investigated their potential applications. However, the complex eggbeater structures present a difficult challenge for traditional manufacturing methods. In the past decade, photolithography, direct laser lithography, chemical vapor deposition, electrodeposition, electrostatic flocking, 3D printing, chemical etching, and plasma etching recently have been developed for fabricating Salvinia-inspired structures. However, the complex structures make many of these techniques unable to replicate the fine structures. Although direct laser lithography and 3D printing techniques succeed in fabricating fine structures, they cannot fabricate the hydrophilic tips at the end of hairs. Therefore, it is still challenging to fabricate artificial Salvinia leaves.
The robust air-mattress in Salvinia structures acts as a physical barrier for water to reach the substrate. This inspires many engineering applications, including drag reduction, water harvesting, evaporation, and repellence, oil/water separation, and thermal insulation. These works are currently limited to early laboratory demonstrations. There are still challenges in the development of artificial surfaces suitable for the complexity and variability of the real environment.
Jin and his colleagues are exploring the potential of Salvinia structures in preventing medical bacterial infection. "The air-mattress acts as a physical barrier for water to approach the substrate, and it can also act as a physical barrier for preventing bacteria reach substrates," says Jin. He points that traditional antibacterial surfaces involving antibiotics may cause drug resistance while the artificial Salvinia-inspired surfaces are free of antibiotics. Employing Salvinia structures to prevent medical bacterial infection may be a promising strategy.
Article details:
Jin et al., "Small structure, large effect: Functional surfaces inspired by Salvinia leaves" Small Structures (2021) https://doi.org/10.1002/sstr.202100079
Contact:
Dr. Huichao Jin
Jilin University
Email: jinhc@jlu.edu.cn
Press release distributed by Asia Research News for Jilin University.
Topic: Press release summary
Source: Jilin University
Sectors: Materials & Nanotech
http://www.acnnewswire.com
From the Asia Corporate News Network
Copyright © 2026 ACN Newswire. All rights reserved. A division of Asia Corporate News Network.
|
|
|
|
|
|
|
Latest Press Releases
GA-ASI Announces YFQ-42A Dark Merlin
Feb 24, 2026 12:41 HKT/SGT
|
|
|
Triple Explosion: Spring Festival Gala, Livestreaming, and Offline Presence Trigger Value Realization for Shoucheng Holdings
Feb 24, 2026 12:36 HKT/SGT
|
|
|
Galaxy Payroll Group Renews Five-Year Strategic Cooperation Agreement with NIKE China Holding HK Limited (Macau Branch)
Feb 24, 2026 12:35 HKT/SGT
|
|
|
Fujitsu expands Uvance for Finance offerings to accelerate DX across financial sector
Tuesday, February 24, 2026 10:23:00 AM
|
|
|
MHI Thermal Systems Establishes Local Subsidiary in India and Starts Operations
Tuesday, February 24, 2026 10:02:00 AM
|
|
|
Hong Kong Tech Delegation Heading for Market Expansion at Mobile World Congress 2026
Feb 24, 2026 10:00 HKT/SGT
|
|
|
Graphene Manufacturing Group Ltd. Engages AJO Capital Inc. for Marketing and Investor Awareness Services
Feb 24, 2026 09:59 HKT/SGT
|
|
|
GA-ASI Develops Long-Range Weapons Capabilities for MQ-9B
Feb 23, 2026 20:10 HKT/SGT
|
|
|
GA-ASI and USAF Demonstrate Manned-Unmanned Teaming With F-22 and MQ-20 In Joint Autonomy Exercise
Feb 23, 2026 20:05 HKT/SGT
|
|
|
Bioxytran Initiates Research Collaboration with University of Georgia to Evaluate Drug Candidate's Ability to Block H5N1 Bird Flu Virus
Feb 23, 2026 20:00 HKT/SGT
|
|
|
|
|
More Press release >> |
|
 |
|
 |
|
