Navigation Links
Silkworms spin colored silks while on a 'green' dyed-leaf diet
Date:12/4/2013

For some 5,000 years, cultivated silkworms have been spinning luxurious white silk fibers destined for use in the finest clothing. But current dyeing practices produce wastewater that contains potentially harmful toxins, so scientists are turning to a new, "greener" dyeing method in which they coax already-colored fibers from the caterpillars by feeding them dyed leaves. Their findings are published in the journal ACS Sustainable Chemistry & Engineering.

Anuya Nisal, Kanika Trivedy and colleagues point out that dyeing textile fabrics is one of today's most polluting industries. The process requires huge quantities of water for bleaching, washing and rinsing, and it results in a stream of harmful wastewater that needs to be treated effectively before release into the environment. To make the industry greener and more environmentally friendly, researchers have been developing less toxic methods, including feeding dyed leaves to silkworms so they spin colored rather than white cocoons. But so far, this technique has only been tested with one type of dye, which is too pricey for large-scale production. Thus, the team turned to azo dyes, which are inexpensive and account for more than half of the textile dyes used today.

They dipped or sprayed mulberry leaves, the silkworm's food of choice, with azo dyes to see which ones, when consumed, would transfer to the silk. Of the seven dyes they tested, three were incorporated into the caterpillars' silk, and none seemed to affect the worms' growth. The scientists noticed that certain dye traits, such as the ability to dissolve in water, affected how well the dye worked. "These insights are extremely important in development of novel dye molecules that can be successfully used in this green method of producing colored silk fabrics," they conclude.


'/>"/>

Contact: Michael Bernstein
m_bernstein@acs.org
202-872-6042
American Chemical Society
Source:Eurekalert

Page: 1

Related biology news :

1. New beautifully colored long-horned beetle from Yunnan, China
2. Biologists produce rainbow-colored algae
3. Eating bright-colored fruits and vegetables may prevent or delay ALS
4. Dance of water molecules turns fire-colored beetles into antifreeze artists
5. The music of the silks
6. Harlequin ladybirds escape enemies while native species succumb
7. EU fishing fleets reap profits while taxpayers foot the bill
8. New technique controls dimensions of gold nanorods while manufacturing on a large scale
9. New evidence that cancer cells change while moving throughout body
10. Advance in regenerative medicine could make reprogrammed cells safer while improving their function
11. Study finds physicians need to better recognize use of herbal supplements while breastfeeding
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/23/2014)... tissues during the healing process, cells must be ... scientists believed this communication happened primarily through chemical ... the University of Pittsburgh have found that another ... not more crucial. The findings, published in this ... National Academy of Sciences , could lead to ...
(Date:9/23/2014)... cow rumens and termite guts for microbes that can ... of next-generation biofuels, but some of the best microbial ... researchers report. , Their study , reported in ... , is the first to use biochemical approaches to ... can digest fiber, breaking it down into simple sugars ...
(Date:9/23/2014)... vegetable consumption could be as good for your mental ... research, conducted by the University of Warwick,s Medical School ... published by BMJ Open focused on mental ... were consistently associated with an individual,s fruit and vegetable ... ate five or more portions of fruit and vegetables ...
Breaking Biology News(10 mins):The mechanics of tissue growth 2Search for better biofuels microbes leads to the human gut 2Search for better biofuels microbes leads to the human gut 3Eating five a day may keep the blues away 2
... 11, 2012) The naked mole rat, a curiously strange, ... or rat. Scientists at The University of Texas Health Science ... continue to explore this mystery. On May 2 a ... machines for protein disposal called proteasome assemblies differ ...
... ON Lawson Health Research Institute announced today that it ... the Bill & Melinda Gates Foundation. Dr. Gregor Reid ... receive funding from the Gates Foundation. The research ... the nutrient rich plant called Moringa on the health outcomes ...
... A brain study in infant rats demonstrates that the ... new questions about using the first-line drug to treat ... Neurology EarlyView posted online May 11, researchers at ... drug phenobarbital given to rat pups about a week ...
Cached Biology News:Scientists find differences in naked mole rat's protein disposers 2Lawson recieves Grand Challenges Explorations grant for groundbreaking research 2Study raises questions about use of anti-epilepsy drugs in newborns 2Study raises questions about use of anti-epilepsy drugs in newborns 3
(Date:9/23/2014)... September 23, 2014 Erlab , ... personnel since 1968 and Burdinola, supplier of laboratory furniture ... new filtered fume hood. , By integrating ... hood, Burdinola will now offer an innovative solution utilizing ... range of chemicals, best-in-class detection technology, and communication for ...
(Date:9/23/2014)... 2014 ATCC, the premier global biological ... two important appointments to the senior leadership team. Barbie ... Strategy and Technology and Dr. Maryellen de Mars also ... Center. Both roles are new positions at ATCC. ... CEO at ATCC described the additions as part of ...
(Date:9/23/2014)... 23, 2014 Follow us ... steady popularity the world over, due to its ... in the marketplace is expected to come from ... developing countries. Several sub-Saharan countries in the African ... already implemented genetically engineered crop production strategies. Rising ...
(Date:9/23/2014)... 2014 News Facts , ... devoted to genome-based research for human health and disease, ... taking a bite out of oral cancer with its world-class ... India with the help of state-of-the-art solution ... (DDN). , To fuel its cutting-edge cancer research, the ...
Breaking Biology Technology:Erlab Partners with Burdinola to Deliver an Innovative Filtered Fume Hood 2ATCC Announces New Appointments to its Leadership Team 2ATCC Announces New Appointments to its Leadership Team 3Rising Focus on Food Security Spurs Growth in the Global Agricultural Biotechnology Market, According to New Report by Global Industry Analysts, Inc. 2Rising Focus on Food Security Spurs Growth in the Global Agricultural Biotechnology Market, According to New Report by Global Industry Analysts, Inc. 3Rising Focus on Food Security Spurs Growth in the Global Agricultural Biotechnology Market, According to New Report by Global Industry Analysts, Inc. 4National Institute of Biomedical Genomics (NIBMG) Deploys DataDirect Networks Storage to Achieve Significant Performance Improvement in World-Class Genomics Research and Collaboration for Oral Cancer 2National Institute of Biomedical Genomics (NIBMG) Deploys DataDirect Networks Storage to Achieve Significant Performance Improvement in World-Class Genomics Research and Collaboration for Oral Cancer 3National Institute of Biomedical Genomics (NIBMG) Deploys DataDirect Networks Storage to Achieve Significant Performance Improvement in World-Class Genomics Research and Collaboration for Oral Cancer 4National Institute of Biomedical Genomics (NIBMG) Deploys DataDirect Networks Storage to Achieve Significant Performance Improvement in World-Class Genomics Research and Collaboration for Oral Cancer 5
... made tremendous scientific advances by dissecting apart the ... at the University of Wisconsin-Madison College of Engineering ... the pieces back together, mathematically. , John Yin, ... computer models of a relatively simple virus to ...
... SCOTTSDALE, Ariz., Feb. 6 Cancer Clinics of ... community oncologists, announced the completion of its 62nd ... leading oncology disease states at the 4th Annual ... oncology group is now fully prepared to launch ...
... LLC, a clinical-stage drug development company commercializing first-in-class ... completion of a $2.9 million private placement. ... and clinical programs for its lead drug compound, ... David G. Kalergis, Chief Executive Officer of Diffusion ...
Cached Biology Technology:Mathematical models reveal how organisms transcend the sum of their genes 2Cancer Clinics of Excellence (CCE) Releases 62nd Evidence-Based Treatment Protocol 2Diffusion Pharmaceuticals Announces Completion of a $2.9 Million Private Placement and Company Presentations at Upcoming Industry Conferences in Geneva, Switzerland and Naples, Florida 2Diffusion Pharmaceuticals Announces Completion of a $2.9 Million Private Placement and Company Presentations at Upcoming Industry Conferences in Geneva, Switzerland and Naples, Florida 3
Mouse monoclonal [4i144] to HLA Class II DQ1 7 ( Abpromise for all tested applications). Antigen: Full length protein (Human): HLA Class 2 Antigen DQ1,7....
ASCIZ...
Goat polyclonal to CHMP5 ( Abpromise for all tested applications). Antigen: Synthetic peptide: C-NKDGVLVDEFGLPQ, corresponding to C terminal amino acids 202-215 of Human CHMP5 Entrez GeneID: ...
...
Biology Products: