3 research outputs found
RegFus: A toolbox for distributed multi-view image registration and fusion
Multi-view and multi-tile light (sheet) microscopy techniques produce large image datasets that are unaligned in space, time and channels. We present a collection of algorithm implementations and scripts to register and fuse such datasets in 2-5d, including e.g. group registration and multi-view deconvolution. Based on the scientific python stack and leveraging dask for chunked and distributed image processing, RegFus enables the efficient reconstruction of large multi-view datasets with low memory requirements, allowing to make use of GPUs and distributed computing. Visualization in napari helps to guide and troubleshoot the reconstruction process.</p
Photoresponsive and Magnetoresponsive Graphene Oxide Microcapsules Fabricated by Droplet Microfluidics
Fluid
compartmentalization by microencapsulation is important in scenarios where protection or controlled release of
encapsulated species, or isolation of chemical transformations is
the central concern. Realizing responsive encapsulation systems by
incorporating functional nanomaterials is of particular interest.
We report here on the development of graphene oxide microcapsules
enabled by a single-step microfluidic process. Interfacial reaction
of epoxide-bearing graphene oxide sheets and an amine-functionalized
macromolecular silicone fluid creates a chemically cross-linked film
with micronscale thickness at the surface of water-in-oil droplets
generated by microfluidic devices. The resulting microcapsules are
monodisperse, mechanically resilient, and shape-tunable constructs.
Ferrite nanoparticles are incorporated via the aqueous phase and enable
microcapsule positioning by a magnetic field. We exploit the photothermal
response of graphene oxide to realize microcapsules with photoresponsive
release characteristics and show that the microcapsule permeability
is significantly enhanced by near-IR illumination. The dual magnetic
and photoresponsive characteristics, combined with the use of a single-step
process employing biocompatible fluids, represent highly compelling
aspects for practical applications
Photoresponsive and Magnetoresponsive Graphene Oxide Microcapsules Fabricated by Droplet Microfluidics
Fluid
compartmentalization by microencapsulation is important in scenarios where protection or controlled release of
encapsulated species, or isolation of chemical transformations is
the central concern. Realizing responsive encapsulation systems by
incorporating functional nanomaterials is of particular interest.
We report here on the development of graphene oxide microcapsules
enabled by a single-step microfluidic process. Interfacial reaction
of epoxide-bearing graphene oxide sheets and an amine-functionalized
macromolecular silicone fluid creates a chemically cross-linked film
with micronscale thickness at the surface of water-in-oil droplets
generated by microfluidic devices. The resulting microcapsules are
monodisperse, mechanically resilient, and shape-tunable constructs.
Ferrite nanoparticles are incorporated via the aqueous phase and enable
microcapsule positioning by a magnetic field. We exploit the photothermal
response of graphene oxide to realize microcapsules with photoresponsive
release characteristics and show that the microcapsule permeability
is significantly enhanced by near-IR illumination. The dual magnetic
and photoresponsive characteristics, combined with the use of a single-step
process employing biocompatible fluids, represent highly compelling
aspects for practical applications