Squishy non-spherical hydrogel microparticles.

Supplementary information Microfluidic-based synthesis of non-spherical magnetic hydrogel microparticles

Microfluidic-based synthesis of non-spherical magnetic hydrogel microparticles.

Spherical and non-spherical magnetic hydrogel particles were synthesized in a microfluidic device containing an embedded UV light reflector. Monodisperse magnetic emulsion droplets were generated in a T-junction and allowed to relax into spheres, disks, and plugs in confining microchannel geometries. Particle morphology was locked-in via UV-initiated photopolymerization. The role of the reflect...

Multiplex Immunoassay Platforms Based on Shape-Coded Poly(ethylene glycol) Hydrogel Microparticles Incorporating Acrylic Acid

A suspension protein microarray was developed using shape-coded poly(ethylene glycol) (PEG) hydrogel microparticles for potential applications in multiplex and high-throughput immunoassays. A simple photopatterning process produced various shapes of hydrogel micropatterns that were weakly bound to poly(dimethylsiloxane) (PDMS)-coated substrates. These micropatterns were easily detached from sub...

Sustained Release of Risedronate from PLGA Microparticles Embedded in Alginate Hydrogel for Treatment of Bony Lesions

Background: Inflammatory bone resorption in periodontitis can lead to tooth loss. Systemic administration of bisphosphonates such as risedronate for preventing bone resorption can cause adverse effects. Alginate hydrogel (ALG) and poly (lactic acid-co-glycolic acid) (PLGA) microparticles have been studied as drug delivery systems for sustained release of drugs. Therefore, the release pattern of...

Magnetic barcoded hydrogel microparticles for multiplexed detection.

Magnetic polymer particles have been used in a wide variety of applications ranging from targeting and separation to diagnostics and imaging. Current synthesis methods have limited these particles to spherical or deformations of spherical morphologies. In this paper, we report the use of stop flow lithography to produce magnetic hydrogel microparticles with a graphical code region, a probe regi...