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 Real-time feedback helps save energy and water
08.02.2017 | Otto-Friedrich-Universität Bamberg

nachricht The Great Unknown: Risk-Taking Behavior in Adolescents
19.01.2017 | Max-Planck-Institut für Bildungsforschung

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: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

Im Focus: Three Magnetic States for Each Hole

Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".

Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

From rocks in Colorado, evidence of a 'chaotic solar system'

23.02.2017 | Physics and Astronomy

'Quartz' crystals at the Earth's core power its magnetic field

23.02.2017 | Earth Sciences

Antimicrobial substances identified in Komodo dragon blood

23.02.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>