Navigation Links
Beetle bling: Researchers discover optical secrets of 'metallic' beetles
Date:4/25/2011

WASHINGTON, April 25Costa Rica was once regarded as the poorest of all the colonies of the Spanish Empire, sadly deficient in the silver and gold so coveted by conquistadors. As it turns out, all of the glittering gold and silver those explorers could have ever wanted was there all along, in the country's tropical rainforestsbut in the form of two gloriously lustrous species of beetle.

Today, the brilliant gold- (Chrysina aurigans) and silver-colored (Chrysina limbata) beetles have given optics researchers new insights into the way biology can recreate the appearance of some of nature's most precious metals, which in turn may allow researchers to produce new materials based on the natural properties found in the beetles' coloring.

A team of researchers at the University of Costa Rica has found that the beetles' metallic appearance is created by the unique structural arrangements of many dozens of layers of exo-skeletal chitin in the elytron, a hardened forewing that protects the delicate hindwings that are folded underneath. A paper about the discovery appears in the first issue of the Optical Society's (OSA) newest open access journal, Optical Materials Express, which launched this month.

The beetles were captured in the University of Costa Rica's Alberto Brenes Mesn Biological Reserve, a tropical rainforest environment. "The metallic appearance of these beetles may allow them to be unnoticed, something that helps them against potential predators," says physicist and study leader William E. Vargas. The surface of their elytra "reflects light in a way that they look as bright spots seen from any direction," he explains. "In a tropical rainforest, there are many drops of water suspended from the leaves of trees at ground level, along with wet leaves, and these drops and wet leaves redirect light by refraction and reflection respectively, in different directions. Thus, metallic beetles manage to blend with the en
'/>"/>

Contact: Angela Stark
astark@osa.org
202-416-1443
Optical Society of America
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Beetles get by with a little help from their friends
2. Wielding microbe against microbe, beetle defends its food source
3. Cross kingdom conflicts on a beetles back
4. Landscape-scale treatment promising for slowing beetle spread
5. Holy guacamole: invasive beetle threatens Floridas avocados
6. Controlling cucumber beetles organically
7. New Southern California beetle killing oaks
8. Beetle shell inspires brilliant white paper
9. What scientists know about jewel beetle shimmer
10. Inconspicuous leaf beetles reveal environments role in formation of new species
11. Scientists isolate new antifreeze molecule in Alaska beetle
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Beetle bling: Researchers discover optical secrets of 'metallic' beetles
(Date:7/29/2014)... the first to show that while the impact of ... negative effects may be reduced by maintaining a healthy ... participants who exercised, slept well and ate well had ... healthy lifestyles, even when they had similar levels of ... in the department of psychiatry at UCSF. "It,s very ...
(Date:7/28/2014)... U.S. Food and Drug Administration (FDA) for other purposes ... inside human cells, including those that cause Legionnaires, disease, ... mBio , the online open-access journal of the ... identifying non-antibiotic drugs that could one day help curb ... the list inhibit the growth of at least three ...
(Date:7/28/2014)... two additional coral communities showing signs of damage from the ... 2010 spill in the Gulf of Mexico. The discovery was ... biology at Penn State University. A paper describing this work ... Gulf of Mexico will be published during the last week ... journal Proceedings of the National Academy of Sciences . ...
Breaking Biology News(10 mins):Healthy lifestyle may buffer against stress-related cell aging, study says 2New route to identify drugs that can fight bacterial infections 2Impact of Deepwater Horizon oil spill on coral is deeper and broader than predicted 2
... research by Brown University biologists shows that fruit flies ... the cells that create eggs and sperm. ... Signals from reproductive tissue directly control lifespan and metabolism ... the Proceedings of the National Academy of Sciences, also ...
... deposits of volcanic glass in the western United States ... its present elevation 12 million years ago, roughly 8 ... The finding has implications not only for understanding the ... ancient global climates. "All the global climate models ...
... at the University Hospital of Magdeburg (Germany) have ... dysfunction and oxidative stress followed by the activation ... NF-kB target gene expression in atrial tissue. Their ... of Experimental Biology and Medicine. Multiple tachycardia-associated factors ...
Cached Biology News:Eliminating germline lengthens fly lifespan, Brown study shows 2Sierra Nevada rose to current height earlier than thought, say Stanford geologists 2Sierra Nevada rose to current height earlier than thought, say Stanford geologists 3Sierra Nevada rose to current height earlier than thought, say Stanford geologists 4Mitochondrial dysfunction and redox signaling in atrial tachyarrhythmia 2
(Date:7/29/2014)... G-CON Manufacturing Inc., the standard in ... a new leadership appointment designed to drive the company’s ... , Maik Jornitz, Chief Operating Officer of G-Con ... with leading the pioneering company through its next phase ... of development and look forward to providing our next ...
(Date:7/29/2014)... The first product launch from start-up ... to robotics. What sets Droidles completely apart from other ... allows them to communicate, share code with each other ... , “The invention is the system,” said Hurley Research ... life of their own, both physically and on the ...
(Date:7/29/2014)... Diego, CA (PRWEB) July 29, 2014 ... to Pipette.com’s centrifugation product selection. Eppendorf 5427 R is ... engineering, and DNA – it is targeted towards work ... Eppendorf Centrifuge 5427 R as it compliments their extensive ... their Eppendorf line of microcentrifuge tubes, PCR tubes, PCR ...
(Date:7/29/2014)... The prestigious "Discovery or Exploration in History ... to Juliana Hillis and Kaylie O’Connell, students at Stoneham ... an Egg, Everything: America’s First IVF Baby". This project ... National History Day program during a week-long final competition ... Washington, D.C. , The growing popularity of the assisted ...
Breaking Biology Technology:G-CON Manufacturing, Inc. Announces Maik Jornitz as President 2Droidles, the Social Network of Robots and Open Source Platform for the Internet of Things, Launches for Crowd Funding on IndieGoGo.com 2International Pipette Distributor, Pipette.com Announces the Addition of the Eppendorf Centrifuge 5427 R to Their Product Portfolio 2In Vitro Fertilization (IVF) was the Subject of This Year’s Winning Entry for the Prestigious Library of Congress “Discovery or Exploration in History Award” 2In Vitro Fertilization (IVF) was the Subject of This Year’s Winning Entry for the Prestigious Library of Congress “Discovery or Exploration in History Award” 3
... Divine Skin Inc. (DSKX) introduced a new molecule, Nanoxidil, designed ... surpass minoxidil for efficacy and tolerability. The innovative new compound ... weight is lower than that of minoxidil, a chemical on ... is a significant step forward in topical therapy, and we ...
... 2011 Jennerex, Inc., a private clinical-stage biotherapeutics ... first-in-class targeted oncolytic products for cancer, today announced ... using JX-594 to treat patients with metastatic melanoma ... Therapy . "This clinical trial ...
... store pictures, and edit all kinds of media formats are ... that is, bits and bytes. Modern computing technology is based ... as efficiently as possible. In a computer hard disk, this ... magnetic layer, where magnetic domains pointing "up" represent a "1" ...
Cached Biology Technology:Biotech Developer Divine Skin (DSKX) Debuts New Hair-Growth Molecule Nanoxidil 2Jennerex Reports Positive Mechanistic Proof-of-Concept Clinical Trial Results Using JX-594 to Treat Metastatic Melanoma 2Jennerex Reports Positive Mechanistic Proof-of-Concept Clinical Trial Results Using JX-594 to Treat Metastatic Melanoma 3Jennerex Reports Positive Mechanistic Proof-of-Concept Clinical Trial Results Using JX-594 to Treat Metastatic Melanoma 4The art of magnetic writing 2
... RVT405DDA Refrigerated Vapor Trap is specifically ... boiling solvents such as DMSO and ... Its constant temperature refrigeration system set ... cryopumping conditions for DMSO, while completely ...
96 Well Plate Sterile, RE bottom; consistent medium binding affinity for hydrophobic complexes and proteins....
Thermo Forma provides an array of accessory Racks for the Cryo/CryoPlus 16" Diameter storage system. To maximise inventory capacity a Jumbo Arrowhead configuration is recommended. You may choose betw...
... Forma Incubated Console Orbital Shakers combine ... ergonomics, unequalled programming power. The ... allowing the unit to run with ... HEPA filtration system reduces contamination. ...
Biology Products: