Daragh Rice

5 Questions 8 Answers 0 Followers

Questions related from Daragh Rice

Could glycine and gluteraldehyde be used to form carboxylic acid groups on an amine functionalised surface?

Hi All, I have SERS microspheres, they're silica coated and I've used APTES to functionalise the surface. I'm aware that the amine can be converted to carboxyl via succinic anyhdride, this takes...

26 March 2018 2,319 3 View

Can low concentrations in SERS have a larger intensity?

I have been synthesising Ag nanoparticle films on Silica beads, I wished to show the limit of detection by making a concentration serial dilution of Rhodamine 6 G, however, there was strange...

22 March 2018 8,227 2 View

How to remove aggregates from Microsphere preparations?

I've got microspheres at approx 1.5µm diameter, these undergo several coating steps, one step is to coat with silver and another with polyelectrolytes. These steps cause aggregation and I'm left...

06 October 2016 8,248 3 View

Can DLS or a Zeta Sizer be used to get particle concentration?

We have magnetite spheres that are polystyrene coated and I wish to get analysis that tells me the concentration before and after magnetic recovery. Can the above mentioned techniques work?

18 February 2016 2,266 6 View

What is the bond energy of both Amine-Silver and Thiol-Silver?

In the formation of SAMs. thiols, amines and carboxylic acids can bind to noble metals. I have formed self assembled monolayers of both thiol and amine compounds, but can't seem to find any...

10 December 2015 2,259 4 View