Logo image
Back
Electrostatic layer-by-layer nano-assembly: films, cantilevers, micropatterns, and nanocapsules
Conference proceeding

Electrostatic layer-by-layer nano-assembly: films, cantilevers, micropatterns, and nanocapsules

Dinesh Kommireddy, Jingshi Shi, Xiaodong Yan, Haifeng Ji and Yuri M Lvov
Proceedings of SPIE, v 5592(1), pp 120-131
19 Jan 2005
DOI: https://doi.org/10.1117/12.568046
Featured in Collection :   UN Sustainable Development Goals @ Drexel

Abstract

Layer-by-layer (LbL) nanoassembly in combination with traditional lithography and microfluidics was applied for the fabrication of ultrathin microcantilevers and for the modification of microchannel surface. Hundreds of cantilevers were fabricated on a silicon wafer simultaneously. The purpose is to develop chemical/biosensor arrays for parallel, massive data gathering. Microcantilever optical deflections were measured using a four-quadrant AFM head with integrated laser and position sensitive detector. In the second part, laminar flow fabrication of interpolyelectrolyte complexes was studied inside a microchannel. Polyelectrolyte micropatterns were studied using fluorescent confocal microscopy. Filament like, 15 m, interpolyelectrolyte microstripes were formed at flow rate higher than 0.01 mL"min and concentrations of the initial polyelectrolytes below 1 mg"mL . New, soft micropatterning technique for the anisotropic modification of polyelectrolyte nanocapsules was also demonstrated. The microchannel surface was made sensitive to pH by coating the surface of the channel with a pH sensitive dye using LbL assembly to control the reaction.

Metrics

10 Record Views
1 citations in Scopus

Details

UN Sustainable Development Goals (SDGs)

This publication has contributed to the advancement of the following goals:

#3 Good Health and Well-Being

InCites Highlights

Data related to this publication, from InCites Benchmarking & Analytics tool:

Web of Science research areas
Instruments & Instrumentation
Optics
Logo image