Controlling formation of gold nanoparticles generated in situ at a polymeric surface

Clukay, Christopher J.; Grabill, Christopher N.; Hettinger, Michelle A.; Dutta, Aniruddha; Freppon, Daniel J.; Robledo, Anthony; Heinrich, Helge; Bhattacharya, Aniket; Kuebler, Stephen M.

doi:10.1016/j.apsusc.2013.11.099

Cited by 22 publications

(16 citation statements)

References 65 publications

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“…Moreover, the amine could partially reduce Au(III) to Au(I) with loss of HCl and formation of an Au(I)-imine complex [48]. Activity of enzyme immobilized on prepared carriers was presented in Table 2.…”

Section: Enzyme Immobilizationmentioning

confidence: 99%

Polyurethane-gold and polyurethane-silver nanoparticles conjugates for efficient immobilization of maltogenase

Kochanė

Budrienė

Miasojedovas

et al. 2017

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Section: Enzyme Immobilizationmentioning

confidence: 99%

Polyurethane-gold and polyurethane-silver nanoparticles conjugates for efficient immobilization of maltogenase

Kochanė

Budrienė

Miasojedovas

et al. 2017

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…In the copper deposition process (Figure ), a polymeric surface is first aminated then treated with aqueous HAuCl 3 to bind Au(III) to the pendant amines. The Au(III)‐treated surface is then exposed to NaBH 4 , which reduces the gold cations, forming gold nanoparticles in situ . The resulting gold‐nanoparticle‐decorated polymer is then exposed to an aqueous solution of Cu(II) and formaldehyde.…”

Section: Resultsmentioning

confidence: 99%

“…Immediately following amination, the sample was rinsed with water and immersed in a 0.53 × 10 −3 m aqueous solution of HAuCl 4 for 2 h. The sample was then removed from the gold bath, rinsed with water, and immersed in 0.1 m aqueous NaBH 4 for 2 min to generate gold nanoparticles by in situ reduction on the polymer matrix . The samples were then removed from the reduction bath, rinsed in water, and immersed in a copper plating bath for 7 min .…”

Section: Methodsmentioning

confidence: 99%

Low‐Distortion Surface Functionalization of Polymeric Microstructures

Kuebler

Narayanan

Karas

et al. 2014

Macro Chemistry & Physics

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Polymeric microstructures can be immersed in an organic solution containing a reactive linker to functionalize the surface for attachment of nanoparticles, fluorescent dyes, proteins, DNA, and other species. However, organic media can swell and distort polymeric microstructures. Swelling and distortion can be irreversible when the linkers are themselves low‐molecular‐weight organics like ethylenediamine, which can bind to unreacted monomer groups or other functionalities within the polymer matrix. This work introduces an alternative approach for surface functionalization based on aqueous processing using higher‐molecular‐weight amines, which causes less distortion, but is comparably effective. The processes are compared by aminating crosslinked SU‐8 thin films and 3D “woodpile” microstructures, electrolessly depositing copper onto these primed surfaces, and measuring the amount of copper deposited and the degree of distortion caused by amination. The method provides a new route to low‐distortion SU‐8 microstructures and identifies a path for improving related processing with other polymeric materials and structure types.

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“…It has been used to prepare submicron electrical interconnects [2], polystyrene/silver (PS/Ag) microspheres for filling applications in anisotropic conductive films [3], reductive platinum (Pt) catalyst [4], silicon and germanium semiconductors with copper (Cu) nanofilms [5], and functionalized polymer surfaces with gold (Au) nanoparticles [6]. EL Au plating was recently used to create ordered arrays of metal nanoparticles [1,7].…”

Section: Introductionmentioning

confidence: 99%