Navigation Links
UT researchers: English ivy may give sunblock a makeover
Date:7/19/2010

y help to enhance the absorption and scattering of light, and serve better as a sun-blocker."

The team's study indicates that ivy nanoparticles can improve the extinction of ultraviolet light at least four times better than its metal counterparts. Furthermore, the metal-based sunscreens used today can pose health hazards. Zhang notes some studies have shown that the small-scale metal oxides in sunscreen can wind up in organs such as the liver or brain.

Ivy nanoparticles, on the other hand, exhibit better biocompatibility with humans and the environment. The team's studies indicate that the ivy nanoparticles were less toxic to mammalian cells, have a limited potential to penetrate through human skin, and are easily biodegradable.

"In general, it is not a good idea to have more metal-based nanoparticles for cosmetic applications. They are a significant concern for the environment. Naturally occurring nanoparticles originated from plants seem to be a better choice, especially since they have been demonstrated to be less toxic and easily biodegradable," Zhang said.

Sunscreens made with ivy nanoparticles may not need to be reapplied after swimming. That's because the plant's nanoparticles are a bit more adhesive so sunscreens made with them may not wash off as easily as traditional sunscreens. And while sunscreens made with metal-based nanoparticles give the skin a white tinge, sunscreens made with ivy nanoparticles are virtually invisible when applied to the skin.


'/>"/>

Contact: Whitney Holmes
wholmes7@utk.edu
865-974-5460
University of Tennessee at Knoxville
Source:Eurekalert

Page: 1 2

Related biology news :

1. UF researchers: Ancient crocodile relative likely food source for Titanoboa
2. NOAA researchers: Blue whales re-establishing former migration patterns
3. Stanford researchers: Global warming is killing frogs and salamanders in Yellowstone Park
4. Midget plant gets makeover
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/6/2014)... metastasis, yet progress in preventing and treating migratory ... particularly challenging to design drugs that work against ... biology at Harvard Medical School. , "Unfortunately, ... metastasized." , Gujral and colleagues have now identified ... understand how metastasis begins. Their findings may also ...
(Date:11/5/2014)... show great diversity in their ability to identify scents ... differ in their perceptual evaluation of odors, with women ... , Sex differences in olfactory detection may play ... connected to one,s perception of smell, which is naturally ... superiority has been suggested to be cognitive or emotional, ...
(Date:11/4/2014)... study examining only marketing directed at children on ... has found that the majority of black, middle-income ... marketing tactics. , Authored by Arizona State University ... is the first to examine the use of ... fast food restaurants and its relationship to demographics. ...
Breaking Biology News(10 mins):Migration negation 2Migration negation 3The female nose always knows: Do women have more olfactory neurons? 2Fast food marketing for children disproportionately affects certain communities 2Fast food marketing for children disproportionately affects certain communities 3
... Aug. 18 Central Florida based locksmith,and safe ... its strategic,alliance with security firm Absolute Access and ... well as all customer service,functions, will be offered ... complete with a new office and showroom location ...
... reported that children with autism have a wide range ... a simple genetic test to identify the disorder. Now, ... reveal correlations in the facial features and brain structures ... enable them to develop a formula for earlier detection ...
... five faculty planning grants to develop long-term research programs ... for fresh water. "Fresh water is crucial to ... than a billion people have no access to safe ... sanitation facilities," said Woods Institute Senior Fellow Richard Luthy, ...
Cached Biology News:Cuellar's Safe and Lock Announces Strategic Alliance with Absolute Access and Security 2Researchers study facial structures, brain abnormalities to reveal formula for detection of autism 2New planning grants to fund research on freshwater issues 2New planning grants to fund research on freshwater issues 3
(Date:11/26/2014)... Continuing its award-winning streak, Nerium International, ... MarCom Awards for outstanding creative achievement by its marketing ... Award, the organization’s top honor, in the Branding category ... in April of this year. The event showcased top ... Nerium was awarded a Gold MarCom Award in the ...
(Date:11/26/2014)... SoundConnect , an award winning ... announce that Darren Suders has joined the team as ... drive the partner program through innovative offerings, ... , Darren brings more than 10-years of channel telecommunication ... channel operations, from policy development, to partner education and ...
(Date:11/26/2014)... MINNEAPOLIS , Nov. 25, 2014 Bio-Techne ... it has appointed Robert Gavin to serve ... of the Protein Platforms Division.  Mr. Gavin will be ... business segment, which includes the ProteinSimple business acquired in ... San Jose, California -based ProteinSimple ...
(Date:11/24/2014)... DUBAI , UAE, November 24, 2014 ... prestigious "Sheikh Hamdan Bin Rashid Al Maktoum Awards for ... in Dubai, United Arab Emirates , ... http://photos.prnewswire.com/prnh/20141124/717861 ) , The Carter Center ... Medical Services is actively involved in numerous programs that ...
Breaking Biology Technology:Nerium International™ Wins One Platinum, Two Gold MarCom Awards 2SoundConnect Appoints Director of Channel Development & Sales 2Bio?Techne Announces Appointment Of Robert Gavin As Leader Of New Protein Platforms Division 2Bio?Techne Announces Appointment Of Robert Gavin As Leader Of New Protein Platforms Division 3Five US Winners Among Recipients of Hamdan Medical Awards 2
... Netherlands, January 16 Today Top Institute,Pharma announces ... at the,development of a malaria vaccine. This TI ... from previous studies. The project aims to,develop a ... lives of,millions of people in developing countries, especially ...
... for the, Maintenance and Prophylactic Treatment of Asthma in Patients 12 ... ... ALVESCO(R) Will be Commercialised by ... Food and Drug Administration (FDA) approved ALVESCO(R),(ciclesonide) Inhalation Aerosol in the United ...
... ,Center of Excellence, Advancing Performance in ... Patient Outcomes, Costs and Convenience, COSTA MESA, Calif., ... today that it has completed the,previously announced acquisition of Neuro-Therapy ... announced,that Daniel A. Hoffman, MD has been appointed Chief Medical ...
Cached Biology Technology:Boost for Malaria Vaccine Development by Combining Strengths of Dutch and American Researchers 2Boost for Malaria Vaccine Development by Combining Strengths of Dutch and American Researchers 3Boost for Malaria Vaccine Development by Combining Strengths of Dutch and American Researchers 4ALVESCO(R) Gains FDA Approval for the U.S. Market 2ALVESCO(R) Gains FDA Approval for the U.S. Market 3ALVESCO(R) Gains FDA Approval for the U.S. Market 4CNS Response, Inc Completes Neuro-Therapy Clinic Acquisition; Names Daniel A. Hoffman, MD Chief Medical Officer 2CNS Response, Inc Completes Neuro-Therapy Clinic Acquisition; Names Daniel A. Hoffman, MD Chief Medical Officer 3
... Stainless Steel Staining tray 19 x 29 ... staining and blot processing.Automated staining of Coomassie ... nucleic acid analysis. Prepares blots for high ... control of protocol, solution, volume, and processing ...
Complement C1r [Human]...
Cytidine 5'-Triphosphate, Sodium (CTP), 1 g. Category: Nucleotides & Enzymes & Biochemicals, Nucleotides, Additional Nucleotide Products....
... designs oligos for SYBR Green, TaqMan, LNA ... FRET assays. Highly specific primers are designed ... interpreting BLAST search results. Primer efficiency is ... by connecting to the Mfold server. Beacon ...
Biology Products: