Crystalline colloidal arrays from the self-assembly of polymer microspheres

Thermo-responsive block copolymers with multiple phase transition temperatures in aqueous solutions

“…The block length-dependent packing of micelles leading to gelation has been described in detail for example for thermo-responsive poly(oxyethylene)-b-poly(oxybutylene) diblock copolymers in water, although such systems exhibit only a single sol-to-gel transition that depends on polymer concentration [136]. The packing of micelles is analogous to the arrangement of sterically stabilized or charge-stabilized colloidal particles (hard or soft spheres) into colloidal crystalline arrays [137] M a n u s c r i p t PTEGSt (PTEGSt = poly(4-vinylbenzyl methoxytris(oxyethylene) ether)) [161], proline-based block copolymers [162,163], and PDMAEMA-based systems [164]. block, respectively) showed LCST behavior in their native state and UCST behavior after the quaternization into a sulfobetaine, both in aqueous solutions [166].…”

Monodisperse erythrocyte-sized and acid-soluble chitosan microspheres prepared via electrospraying

“…Polymer microspheres with good biocompatibility, uniform size, large specic surface area and unique functions have received considerable attention in biomedical and biochemical elds for drug delivery, 1-3 tissue engineering, 4,5 enzyme immobilization, 6,7 bioseparation, 8,9 bioassay and diagnosis. 10,11 Among them, monodisperse polymer microspheres with a size range of 5-8 mm, which have same size as human erythrocytes, are highly potential as the standard samples replacing the human erythrocyte samples for the calibration of hematology analyzers and ow cytometers. [12][13][14] The polymer microsphere samples can avoid a series of annoying things coming from the blood samples, such as troublesome processing procedure, poor stability, bio-hazard, limited shelf-life, lot-to-lot variation and high cost.…”

Color‐Selective 2.5D Holograms on Large‐Area Flexible Substrates for Sensing and Multilevel Security

“…[1,2] Photonic structures have been fabricated by self-assembly and microfabrication, or combination of both. [3] Bottom-up fabricated periodic optical nanostructures include crystalline colloidal arrays, [4] inverse opals, [5] block copolymer gratings, [6] and Bragg stacks. [7] However, photonic structures obtained by self-assembly methods are prone to defects; therefore, the mass production of uniform, defect-free, largearea 3D photonic structures, in particular with narrow-band diffraction in the visible spectrum is limited.…”