Microfluidic characterization of sustained solute release from porous supraparticles
Literature Information
Vinayak Rastogi, Krassimir P. Velikov, Orlin D. Velev
We present a novel microfluidic technique for precise characterization of controlled release of solute from porous latex supraparticles in a laminar flow environment. Dye-infused supraparticles are fabricated via dry self-assembly method using droplet templates dispensed on superhydrophobic substrates. A water-soluble dye is used as a model compound, the release rate of which is measured colorimetrically. The sustained release rates of dye from supraparticles and dye pellets are quantified and compared to common diffusion/dissolution mass transfer models. The results illustrate the potential of microfluidics as a tool in monitoring controlled release process and the role of the uniformly porous supraparticle matrix for the prolonged continuous solute delivery.
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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.











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