Title: Molecular and Topographical Organization: Influence on Cicada Wing Wettability and Bactericidal Properties

Abstract

Numerous natural surfaces have micro/nanostructures that result in extraordinary functionality, such as superhydrophobicity, self-cleaning, antifogging, and antimicrobial properties. One such example is the cicada wing, where differences in nanopillar geometry and composition among species can impact and influence the degree of exhibited properties. To understand the relationships between surface topography and chemical composition with multifunctionality, the wing properties of Neotibicen pruinosus (superhydrophobic) and Magicicada cassinii (hydrophobic) cicadas are investigated at time points after microwave-assisted extraction of surface molecules to characterize the chemical contribution to nanopillar functionality. Electron microscopy of the wings throughout the extraction process illustrates nanoscale topographical changes, while concomitant changes in hydrophobicity, bacterial fouling, and bactericidal properties are also measured. Extract analysis reveals the major components of the nanostructures to be fatty acids and saturated hydrocarbons ranging from C17 to C44. Effects on the antimicrobial character of a wing surface with respect to the extracted chemicals suggest that the molecular composition of the nanopillars plays both a direct and an indirect role in concert with nanopillar geometry. The data presented not only correlates the nanopillar molecular organization to macroscale functional properties, but it also presents design guidelines to consider during the replication of natural nanostructures onto engineered substratesmore » to induce desired properties.« less

Authors:

Román‐Kustas, Jessica  ^[1];

• Search DOE PAGES for author "Román‐Kustas, Jessica"
• Search DOE PAGES for ORCID "0000-0003-1879-0234"

Hoffman, Jacob B. ^[2]; Reed, Julian H.  ^[2];

• Search DOE PAGES for author "Reed, Julian H."
• Search DOE PAGES for ORCID "0000-0001-9326-204X"

Gonsalves, Andrew E. ^[3]; Oh, Junho  ^[4];

• Search DOE PAGES for author "Oh, Junho"
• Search DOE PAGES for ORCID "0000-0003-0115-3132"

Li, Longnan ^[4]; Hong, Sungmin ^[2]; Jo, Kyoo D. ^[2]; Dana, Catherine E. ^[5]; Miljkovic, Nenad  ^[6];

• Search DOE PAGES for author "Miljkovic, Nenad"
• Search DOE PAGES for ORCID "0000-0002-0866-3680"

Cropek, Donald M. ^[2]; Alleyne, Marianne ^[7]

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+ Show Author Affiliations

1. U.S. Army Engineer Research and Development CenterConstruction Engineering Research Laboratory (CERL) Champaign IL 61822 USA, Sandia National LaboratoriesMaterials Reliability Department Albuquerque NM 87123 USA
2. U.S. Army Engineer Research and Development CenterConstruction Engineering Research Laboratory (CERL) Champaign IL 61822 USA
3. U.S. Army Engineer Research and Development CenterConstruction Engineering Research Laboratory (CERL) Champaign IL 61822 USA, Department of BioengineeringUniversity of Illinois at Urbana–Champaign Urbana IL 61801 USA
4. Department of Mechanical Science and EngineeringUniversity of Illinois at Urbana–Champaign Urbana IL 61801 USA
5. Department of EntomologyUniversity of Illinois at Urbana–Champaign Urbana IL 61801 USA, Illinois Natural History SurveyUniversity of Illinois at Urbana–Champaign Champaign IL 61820 USA
6. Department of Mechanical Science and EngineeringUniversity of Illinois at Urbana–Champaign Urbana IL 61801 USA, Department of Electrical and Computer EngineeringUniversity of Illinois at Urbana–Champaign Urbana IL 61801 USA, Frederick Seitz Materials Research LaboratoryUniversity of Illinois at Urbana–Champaign Urbana IL 61801 USA, International Institute for Carbon Neutral Energy ResearchKyushu University 744 Motooka Nishi‐ku Fukuoka 819‐0395 Japan
7. Department of EntomologyUniversity of Illinois at Urbana–Champaign Urbana IL 61801 USA

Publication Date:

Wed Apr 01 00:00:00 EDT 2020

Research Org.:

Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Org.:

USDOE National Nuclear Security Administration (NNSA); US Army Construction Engineering Research Laboratory (CERL); National Science Foundation (NSF); Ministry of Education, Culture, Sports, Science and Technology (MEXT)

OSTI Identifier:

1630251

Alternate Identifier(s):

OSTI ID: 1619235; OSTI ID: 1630253

Report Number(s):

SAND-2020-3794J
Journal ID: ISSN 2196-7350; 2000112

Grant/Contract Number:  

AC04-94AL85000; 1554249; NA0003525

Resource Type:

Published Article

Journal Name:

Advanced Materials Interfaces

Additional Journal Information:

Journal Name: Advanced Materials Interfaces Journal Volume: 7 Journal Issue: 10; Journal ID: ISSN 2196-7350

Publisher:

Wiley-VCH

Country of Publication:

Germany

Language:

English

Subject:

59 BASIC BIOLOGICAL SCIENCES; cicada wings; contact angle; microwave‐assisted extraction; nanostructured interfaces; superhydrophobicity