Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Influence of sunlight exposure on rhizophora dye solution

26.06.2013
This study investigates the effects of sunlight exposure on Rizophora dye solution

Natural dyes have been used as the colouring of natural fibres, in cosmetic products, to produce ink, watercolour and artist’s paints. Natural dyes produce an extraordinary diversity of rich and complex colour.

Besides that, natural dyes are a renewable resource since it is not dependent on petroleum as are many synthetic dyes. The main objective of this research project is to study the effect (dose response) of sunlight exposure on Rhizophora dye solutions by using UV–Vis and FTIR spectrophotometer.

Rhizophora dye is a kind of natural dye which is extracted from Rhizophora Apiculata plant Rhizophora is a genus of tropical mangrove trees. Rhizophora apiculata is widely found along the tropical coastal areas and offshore islands near Peninsula Malaysia. It grows on sandy oil substrate or on along the islands especially in muddy areas. Rhizophora is used primarily as timber, building material, fencing, firewood, medicines as well as dyeing and tannins for staining leather.
The induced colour changes of dyes under the effect of radiation have been sufficiently documented in literature. Most of the reported experimental work was done on aqueous aerated acidic or alkaline organic dye solutions. The decrease in the absorbance of solutions on irradiation was suggested to be used in chemical dosimetry.

The Rhizophora dye solutions were prepared by soaking the Rhizophora bark, flower and leave in distilled water for 7 days. The sunlight exposure is carried out up to 30 days. UV-Visible spectra of the dyes were measured by using UV–Vis spectrophotometer (Palo Alto, CA).
The outcome of the research project was Rhizophora dye solutions could possibly be applied as chemical dosimeters.

There are several experiments recommended for future studies as following:
i. To investigate the dosimetric performance for dye solutions of various natural dye.
ii. To further understand the dosimetric properties of Rhizophora Apiculata dye polymer blends

AZLINA BINTI BAHA
Universiti Teknologi MARA, Malaysia.
azlina@ns.uitm.edu.my

Darmarajah Nadarajah | Research asia research news
Further information:
http://www.uitm.edu.my

More articles from Studies and Analyses:

nachricht Researchers simplify tiny structures' construction drip by drip
12.11.2018 | Princeton University, Engineering School

nachricht Mandibular movement monitoring may help improve oral sleep apnea devices
06.11.2018 | Elsevier

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: UNH scientists help provide first-ever views of elusive energy explosion

Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.

Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...

Im Focus: A Chip with Blood Vessels

Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.

Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...

Im Focus: A Leap Into Quantum Technology

Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.

In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...

Im Focus: Research icebreaker Polarstern begins the Antarctic season

What does it look like below the ice shelf of the calved massive iceberg A68?

On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.

Im Focus: Penn engineers develop ultrathin, ultralight 'nanocardboard'

When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure

Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

“3rd Conference on Laser Polishing – LaP 2018” Attracts International Experts and Users

09.11.2018 | Event News

On the brain’s ability to find the right direction

06.11.2018 | Event News

European Space Talks: Weltraumschrott – eine Gefahr für die Gesellschaft?

23.10.2018 | Event News

 
Latest News

Purdue cancer identity technology makes it easier to find a tumor's 'address'

16.11.2018 | Health and Medicine

Good preparation is half the digestion

16.11.2018 | Life Sciences

Microscope measures muscle weakness

16.11.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>