What is the emission range of rhodamine 6G?

Rhodamine 6G is a fluorescent compound with an excitation peak at 525 nm and an emission peak at 548 nm.

What is the role of rhodamine B?

Rhodamine B /ˈroʊdəmiːn/ is a chemical compound and a dye. It is often used as a tracer dye within water to determine the rate and direction of flow and transport. Rhodamine dyes fluoresce and can thus be detected easily and inexpensively with fluorometers.

How does Rhodamine 6G work?

Rhodamine 6G /ˈroʊdəmiːn/ is a highly fluorescent rhodamine family dye. It is often used as a tracer dye within water to determine the rate and direction of flow and transport. Rhodamine dyes fluoresce and can thus be detected easily and inexpensively with instruments called fluorometers.

Why do we think Rhodamine B is better than Uranine for marking mosquitos?

Both uranine and rhodamine are useful mating markers. Rhodamine is more specific and sensitive than uranine as the male accessory gland fluid has weak yellow-green fluorescence that is easily confused with low-dose uranine marking.

Is Rhodamine B an organic compound?

Rhodamine B is an organic chloride salt having N-[9-(2-carboxyphenyl)-6-(diethylamino)-3H-xanthen-3-ylidene]-N-ethylethanaminium as the counterion.

What does Rhodamine 6G react to?

Rhodamine 6G adsorbs very effectively on the roughened silver surface. However, the detection of single adsorbates of dopamine or phthalazine on colloidal clusters, with a limit of detection at picogram levels, illustrates that ultrasensitivity of this technique for other adsorbates is possible.

How can we trace malaria mosquitoes?

Researchers most commonly use the mark-release-recapture technique. This means they capture mosquitoes, mark them, release them into the wild, and capture them again for observation.

Why are insecticides becoming a less effective option for mosquito control?

Even though a mosquito may survive a dose of an insecticide, the chemical may weaken it in some way. And the genes needed for resistance may take their own toll, perhaps by shortening a mosquito’s life span.

Is reactive dye anionic or cationic?

Reactive dyes are anionic in character and cotton fibers also adopt anionic surface charge in water causing limited exhaustion of dye due to charge repulsion.

Is Rhodamine B hydrophilic or hydrophobic?

Fluorescent dye Rhodamine B was used as a model hydrophilic drug in controlled release experiments after it was encapsulated in solution-blown soy-protein-containing hydrophilic nanofibers as well as in electrospun hydrophobic poly(ethylene terephthalate) (PET)-containing nanofibers.

Why are mosquitoes attracted to CO2?

Female mosquitoes have nerve cells called cpA neurons that have a receptor to detect carbon dioxide. This enables them to sense the plumes of air we exhale. But mosquitoes are still attracted to human skin even in the absence of carbon dioxide.