Results 211 to 220 of about 4,000,497 (331)

Multispectral Chiral Quasi‐Bound States in the Continuum Enabled Microfluidics for High‐Throughput Molecular Screening and Quantification

open access: yesAdvanced Science, EarlyView.
A microfluidics‐integrated chiral quasi‐BIC metachip is developed that generates strong broadband CD from 0.5–2.0 THz in aqueous environments. A UMAP algorithm processes the resulting multidimensional CD features for simultaneous biomolecular conformation identification and concentration quantification (0.05–0.3 mg dL−1).
Xinyue Liang   +8 more
wiley   +1 more source

Symmetry Breaking in Chemical Systems: Engineering Complexity Through Self‐Organization and Marangoni Flows

open access: yesAdvanced Science, EarlyView.
We show that solutal Marangoni flows in thin films climbing the outer surfaces of hydrophilic obstacles break circular Belousov‐Zhabotinsky waves into striking flower‐like patterns. Evaporation‐driven surface‐tension gradients, coupled with gravity, trigger the instability; above a threshold, petal number scales linearly with obstacle diameter ...
Sangram Gore   +9 more
wiley   +1 more source

Effect of Inhomogeneous Temperature in Chip‐Scale Infrared Thermal Sources: A Revisited Blackbody Radiation Formula with Experimental Validation

open access: yesAdvanced Electronic Materials, EarlyView.
Revisited Black‐body radiation formula accounting for nonuniform temperature is proposed for calibration of planar thermal light sources. Calibration of optical power is based on measurement of the highest and lowest temperatures. Abstract Miniature and low‐cost light sources are highly desirable for numerous optical microsystems.
Shady R. Labib   +5 more
wiley   +1 more source

Scattering Engineering for High Power Factor Semimetals Proved by Shubnikov‐de Haas Oscillation and Anisotropic Resistivity

open access: yesAdvanced Electronic Materials, EarlyView.
It is reported that isovalent substitution in the semimetal Ta2PdSe6 tunes carrier scattering time without changing carrier density. Combining anisotropic resistivity and quantum oscillations, they establish the concept of “scattering engineering” as a design strategy to achieve high thermoelectric power factors.
Akitoshi Nakano   +11 more
wiley   +1 more source

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