Qiu Yin

Spectrophotometry is concerned with the quantitative analysis of reflectance and transmittance measurements on a sample, as a mean to investigate (or measure) the properties defining absorption and scattering of radiation within media. These radiative properties are the absorption coefficient, the scattering coefficient and the single-scattering phase function. Our study is motivated by two distinct uses of spectrophotometry: 1.

Graphical Abstract Hydrogel Fibers In article number 2308396 by Zhichao Ma, Wenming Zhang, and co-workers, an acoustofluidic system that can be used to produce hydrogel fibers/tubules with tunable cell patterns is developed. Cells can be pre-patterned in the liquid hydrogel before being extruded as crosslinked hydrogel fibers/tubules. The radial patterns can be tuned with different complexities based on the acoustic resonances.

1 Introduction Bio-fabrication seeks to create synthetic biological substitutes to replicate the structural and physicochemical features of natural tissues. This endeavor is important in various fields, such as food production,[1] regenerative medicine[2] and drug discovery.[3] Consequently, the ability to produce on-demand biocompatible scaffolds with controllable cell distribution emerges as one of the essential techniques in bio-fabrication.