Navigation Links
'Watermark ink' device identifies unknown liquids instantly
Date:8/3/2011

nverse opal. The inverse opal is a layered glass structure with an internal network of ordered, interconnected air pores.

Co-authors Lidiya Mishchenko (a graduate student at SEAS) and Benjamin D. Hatton (a research appointee at SEAS and a technology development fellow at the Wyss Institute for Biologically Inspired Engineering at Harvard), recently perfected the production process of large-scale, highly ordered inverse opals.

"Two factors determine whether the color changes upon the introduction of a liquid: the surface chemistry and the degree of order in the pore structure," says Mishchenko, who works in the Aizenberg lab. "The more ordered the structure, the more control you can have over whether or not the liquid enters certain pores by just changing their surface chemistry."

Burgess and his colleagues discovered that selectively treating parts of the inverse opal with vaporized chemicals and oxygen plasma creates variations in the reactive properties of the pores and channels, letting certain liquids passthrough while excluding others.

Allowing liquid into a pore changes the material's optical properties, so the natural color of the inverse opal shows up only in the dry regions.

Each chip is calibrated to recognize only certain liquids, but it can be used over and over (provided the liquid evaporates between tests).

With the hope of commercializing the W-Ink technology, the researchers are currently developing more precisely calibrated chips and conducting field tests with government partners for applications in quality assurance and contaminant identification.

"If you want to detect forgeries," says Burgess, "you can tune your sensor to be acutely sensitive to one specific formulation, and then anything that's different stands out, regardless of the composition."

One immediate application would allow authorities to verify the fuel grade of gasoline right at the pump. Burgess also envisions
'/>"/>

Contact: Caroline Perry
cperry@seas.harvard.edu
617-496-1351
Harvard University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Mobile Devices Pose New Security Risks for Patients; Five Experts Share Insights on mHealth
2. Soft memory device opens door to new biocompatible electronics
3. Health-care practitioners stories can aid medical device designers
4. UBC researchers invent new drug delivery device to treat diabetes-related vision loss
5. Student team invents device to cut dialysis risk
6. Stretching old material yields new results for energy- and environment-related devices
7. Device could improve harvest of stem cells from umbilical cord blood
8. U.S. Biomedical Leaders Present a New National Device Innovation Strategy Based on "Value-driven Engineering"
9. Single GFP-expressing cell is basis of living laser device
10. Stamping out low cost nanodevices
11. Noninvasive wireless near-infrared device provides reliable diagnosis of bladder dysfunction
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/10/2014)... Florida , July 1, 2014 ... pave way for convenience and improved security: NXT-ID, Inc. (OTCBB: ... (NASDAQ: GOOG ), Apple Inc. (NASDAQ: ... MasterCard Corporation (NYSE: MA) NXT-ID, Inc., (OTCQB: NXTD) a ... pleased to announce that the second series of 30 second ...
(Date:7/10/2014)... 2014 It is a great honor for ... of the world-renowned Thoracic and Cardiovascular surgeon, Mark E ... Dr. Ginsburg, with over 34 years of experience, is ... Good Samaritan Regional Medical Center. Dr. Ginsburg has been ... and is considered an expert in the implantation of ...
(Date:7/10/2014)... -- According to the new market research ... Material (Optical Prism, Pizeoelectric, Capacitive, and Adhesives), Application (Mobile ... Finance), and Geography - Global Trends & Forecasts to ... Sensors Market is projected to cross $14.35 Billion by ... 2014 to 2020. Browse more than 78 ...
Breaking Biology News(10 mins):Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 2Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 3Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 4Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 5Avery Biomedical Devices, Inc. announces the appointment of Mark E Ginsburg, M.D. to its Board of Directors 2Fingerprint Sensors Market worth $14.35 Billion by 2020 2Fingerprint Sensors Market worth $14.35 Billion by 2020 3
... Researchers at Burnham Institute for Medical Research at ... (a chain of amino acids) that specifically recognizes and ... was also shown to deliver diagnostic particles and medicines ... dramatically enhance both cancer detection and treatment. The work ...
... Mass. December 7, 2009 Biogen Idec (NASDAQ: ... fumarate) achieved key milestones in clinical trials for multiple ... the last patient was enrolled in the CONFIRM trial, ... evaluate the efficacy and safety of BG-12 as a ...
... Researchers from Yale University and Mirna Therapeutics, Inc., reversed ... occurring tumor suppressor microRNA. The study reveals that a ... role in cancer treatment, and provides hope for future patients ... cancers. "This is the first time anybody has shown a ...
Cached Biology News:Delivering medicine directly into a tumor 2Biogen Idec's oral compound BG-12 achieves development milestones in MS and RA 2
(Date:7/10/2014)... CA (PRWEB) July 10, 2014 Senior ... institutions and professional associations, addressed the challenges of “Reducing ... Medical Device Industries” through strategic sourcing. Describing the partnership ... with the Supply Chain Management Institute ( SCMI) ... event on June 24 at the Kroc Institute of ...
(Date:7/10/2014)... , July 10, 2014 Research ... addition of the "International Photonic Integrated Circuit ... Forecasts to 2019" report to their offering. ... The concept of photonic integration traces its ... century. The promise of photonic integration went unexplored ...
(Date:7/10/2014)... journal PNAS (Proceedings of the National Academy of ... sleep deprivation have a significant effect on our metabolism. ... best time of day to test for diseases such ... effectively. , Researchers from the University of Surrey and ... between sleep deprivation, body clock disruption and metabolism, and ...
(Date:7/10/2014)... 1960s, theatergoers have shelled out for crude 3-D ... their viewing experience. These basic devices, used to ... reality, may soon be rendered obsolete with the ... Aviv University researchers. , TAU doctoral students Yuval ... highly efficient holography based on nanoantennas that could ...
Breaking Biology Technology:Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 2Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 3Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 4International Photonic Integrated Circuit (Monolithic Integration, Hybrid Integration, Module Integration) Market - Forecasts to 2019 2Time of day crucial to accurately test for diseases, new research finds 2Projecting a 3-dimensional future 2Projecting a 3-dimensional future 3
... Aug. 14 Transgenomic, Inc. (the,"Company") (OTC Bulletin Board: ... 30, 2007. The Company,s financial results are,presented in the ... Company reported a net profit of $0.2 million or ... compared to a net loss of $0.4 million or,$0.01 ...
... Genetics, Inc.,(Nasdaq: RGDX ), today reported financial ... "The second quarter of 2007 was very ... public offering in June," said,Kathleen Danenberg, President and ... the recent developments that have since been announced. ...
... Summertime equals fun for a lot of,folks. ... (IBS), typical,summer fare could also mean aggravating their ... for IBS," has more on,what people with IBS ... IBS from,ruining their celebrations. Listen to this ...
Cached Biology Technology:Transgenomic, Inc. Reports Second Quarter 2007 Results 2Transgenomic, Inc. Reports Second Quarter 2007 Results 3Transgenomic, Inc. Reports Second Quarter 2007 Results 4Transgenomic, Inc. Reports Second Quarter 2007 Results 5Transgenomic, Inc. Reports Second Quarter 2007 Results 6Transgenomic, Inc. Reports Second Quarter 2007 Results 7Transgenomic, Inc. Reports Second Quarter 2007 Results 8Response Genetics Reports Second Quarter 2007 Financial Results 2Response Genetics Reports Second Quarter 2007 Financial Results 3Response Genetics Reports Second Quarter 2007 Financial Results 4Response Genetics Reports Second Quarter 2007 Financial Results 5Response Genetics Reports Second Quarter 2007 Financial Results 6Response Genetics Reports Second Quarter 2007 Financial Results 7Response Genetics Reports Second Quarter 2007 Financial Results 8
Request Info...
Human Osteocalcin (1-22) mature form. Also reacts with Osteocalcin (1-44) and Osteocalcin (1-49). No reactivity with Bone sialoprotein....
TGF-beta 1,-2,-3 MAb (Clone 1D11)...
1/4" to 1/8" Adapter for Reflectance Probe Holder...
Biology Products: