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Hi, you could try dextran conjugates. Molecular Probes has dextrans in many different spectra. Of course dextran is a sugar (polysaccharide) and does not specifically bind to plasma.
Cheers,
Brian Armstrong PhD
Director, Light Microscopy Core
x62872
-----Original Message-----
From: Confocal Microscopy List [mailto:[log in to unmask]] On Behalf Of Ko, Alex
Sent: Thursday, March 27, 2014 4:18 PM
To: [log in to unmask]
Subject: alternative dye for ICG using shorter excitation wavelength
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Hi ,
We have been working with ICG dyes to track blood flow in vivo using a 806nm laser light, however our new equipment does not work very well with such long wavelength, I am wondering if anyone knows about an alternative dye which binds with plasma protein but using a shorter excitation wavelength ( like in the upper visible region 660-735nm range ), thanks in advance.
Alex
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