Navigation Links
Scientists show there's nothing boring about watching paint dry
Date:8/10/2010

New Haven, Conn.It turns out that watching paint dry might not be as boring as the old adage claims. A team led by Yale University researchers has come up with a new technique to study the mechanics of coatings as they dry and peel, and has discovered that the process is far from mundane.

In the August 9-13 edition of the Proceedings of the National Academy of Sciences, the team presents a new way to image and analyze the mechanical stress that causes colloidal coatingsthose in which microscopic particles of one substance are dispersed throughout anotherto peel off of surfaces.

Understanding how and why coatings fail has broad applications in the physical and biological sciences, said Eric Dufresne, the John J. Lee Associate Professor of Mechanical Engineering at Yale and lead author of the study.

"Coatings protect almost every surface you encounter, from paint on a wall to Teflon on a frying pan to the skin on our own bodies. When coatings peel and crack they put the underlying material at risk," Dufresne said. "Our research is aimed at pinpointing the failure of coatings. We've developed this new technique to zoom in on coatings and watch them fail at the microscopic level."

To visualize the microscopic motion of paint in 3D, the team mixed in tiny fluorescent particles that glow when illuminated by a laser. By tracing the motion of these particles over time with a microscope, they captured the motion of the paint as it peeled and dried in detail.

In addition, the team was able to track the 3-D forces generated by the paint as it dried, producing a "stress map" of the mechanical deformation of the coating as it failed. "The trick was to apply the paint to a soft surface, made of silicone rubber, that is ever so slightly deformed by the gentle forces exerted by the drying paint," Dufresne said.

Although the current study focuses on colloidal coatings, the technique could be applied to all kinds
'/>"/>

Contact: Suzanne Taylor Muzzin
suzanne.taylormuzzin@yale.edu
203-432-8555
Yale University
Source:Eurekalert  

Page: 1 2

Related biology news :

1. The jellyfish-like salp: Most efficient filter-feeder in the deep, scientists discover
2. UCLA scientists map all mammalian gene interactions
3. Scientists find new evidence of genetically modified plants in the wild
4. Scientists find the first evidence of genetically modified plants in the wild
5. Scientists develop sustainable, environmentally friendly potting medium
6. Scientists unlock secret of rabies transmission in bats
7. Ancient blob-like creature of the deep revealed by scientists
8. Scientists at University of Colorado Anschutz Medical Campus discover new fat cell
9. Scientists discover how neuroglobin protects against Alzheimers
10. Scientists target possible cause of 1 form of bowel disease
11. Ecological scientists assess the fundamentals of animal behavior
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists show there's nothing boring about watching paint dry
(Date:11/18/2014)... -- The Secure Identity & Biometrics Association (SIBA) and ... formation of The Airport Entry and Exit Working ... Biometric Entry and Exit Solutions Framework for Airports ... BORDERPOL, the international non-profit organization that works directly ... border security, traveler and migration systems. ...
(Date:11/15/2014)... YORK , Nov. 13, 2014  While we may ... technology Doctor McCoy used in "Star Trek" to gain instant ... tools designed to work with smartphones and tablets for monitoring ... of the healthcare world. This may seem a tad Orwellian ... ready to adopt some of these technological opportunities into their ...
(Date:11/7/2014)... led by Dr. Debra Auguste, associate professor, biomedical ... The City College of New York, have identified ... for one of the most aggressive forms of ... have a high mortality rate owing to aggressive ... therapeutic options. However, Professor Auguste,s team, discovered the ...
Breaking Biology News(10 mins):Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 2Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 3Americans May Be Ready for a Brave New World of Healthcare 2Americans May Be Ready for a Brave New World of Healthcare 3Americans May Be Ready for a Brave New World of Healthcare 4
... rich in omega-3 fatty acids can inhibit growth of breast ... from the University of Guelph. The study, published recently ... to be the first to provide unequivocal evidence that omega-3s ... Ma, a professor in Guelph,s Department of Human Health and ...
... Washington, DC The Entomological Society of America (ESA) ... today a new partnership that will provide ESA members ... policy debates. The ESA is the ... scientific needs of entomologists and individuals in related disciplines. ...
... of Southampton have identified the molecular system that ... brain during neurodegenerative diseases. An important aspect ... Huntington,s or prion disease, is the generation of ... Results from the study open new avenues ...
Cached Biology News:Omega-3s inhibit breast cancer tumor growth, study finds 2Entomological Society of America launches science policy program 2Scientists identify molecular system that could help develop treatments for Alzheimer's disease 2
(Date:12/15/2014)... Israel , Dec. 15, 2014  BrainStorm ... leading developer of adult stem cell technologies for neurodegenerative ... Ltd. was awarded a grant of approximately $1.1 million ... Chief Scientist (OCS).  This is the eighth year that ... the Office of the Chief Scientist, which is part ...
(Date:12/15/2014)... -- GlassesOff Inc. (OTCBB: GLSO) announced today the appointment of ... of the Company,s Board of Directors. Mr. ... CEO until its acquisition by Stanley Black ... as the inventor of the first Wi-Fi-based Active RFID ... RFID solutions focused on improving operational efficiency, safety and ...
(Date:12/15/2014)... COPENHAGEN, Denmark , Dec. 15, 2014 /PRNewswire/ ... its innovative TransCon technology to address significant unmet ... from its ongoing Phase 2 pediatric study to ... growth hormone deficiency, or GHD.  This interim analysis ... the anticipated total enrollment in the study, completing ...
(Date:12/13/2014)... - MaRS and Virgin Unite Canada, the non-profit foundation of ... to support Canadian entrepreneurs tackling social and environmental challenges. Today, ... the MaRS Centre to announce the new partnership, which includes ... fund has $1 million in seed capital provided by Virgin ... Social Innovation Foundation, founded by Alison Lawton . ...
Breaking Biology Technology:BrainStorm Receives $1,100,000 for its 8th Annual Non-Dilutive Grant from Israel's Chief Scientist Office 2BrainStorm Receives $1,100,000 for its 8th Annual Non-Dilutive Grant from Israel's Chief Scientist Office 3AeroScout Founder Joins GlassesOff's Board of Directors 2AeroScout Founder Joins GlassesOff's Board of Directors 3Ascendis Pharma A/S Announces Positive Six-Month Interim Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 2Ascendis Pharma A/S Announces Positive Six-Month Interim Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 3Ascendis Pharma A/S Announces Positive Six-Month Interim Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 4MaRS and Virgin Unite partner to invest in business as a force for good 2MaRS and Virgin Unite partner to invest in business as a force for good 3
... Draws Participants From A Broad Range of Industries Despite ... edition of InformexUSA officially opened its exhibition floors Wednesday ... show traffic in 2008. The week long exhibition & ... in North America, is featuring an expanded program to ...
... Mass., Jan. 29 Repligen Corporation (Nasdaq: ... Chief Executive Officer, Walter C. Herlihy, Ph.D., will host ... 2009 at 10:00 a.m. EST, to report third quarter ... quarterly update of the Company.This call is being webcast ...
... 29, 2009 Senomyx, Inc. (Nasdaq: SNMX ) ... fiscal year ending December 31, 2008 on Thursday, February 12, ... The Company will also host a conference call and live ... Time) that same day. During the call, Senomyx,s management ...
Cached Biology Technology:InformexUSA 2009 Opens to Strong Attendance 2InformexUSA 2009 Opens to Strong Attendance 3InformexUSA 2009 Opens to Strong Attendance 4Repligen Announces Conference Call of Third Quarter Fiscal Year 2009 Results 2Repligen Announces Conference Call of Third Quarter Fiscal Year 2009 Results 3SENOMYX, INC. fourth quarter AND FISCAL YEAR-END 2008 Earnings conference call scheduled for February 12, 2009 2