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Predicting Age and Visual-Motor Integration Using Origami Photographs: Deep Learning Study.
JMIR Form Res
January 2025
School of Occupational Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan.
Background: Origami is a popular activity among preschool children and can be used by therapists as an evaluation tool to assess children's development in clinical settings. It is easy to implement, appealing to children, and time-efficient, requiring only simple materials-pieces of paper. Furthermore, the products of origami may reflect children's ages and their visual-motor integration (VMI) development.
View Article and Find Full Text PDFGiant Purcell Broadening and Lamb Shift for DNA-Assembled Near-Infrared Quantum Emitters.
ACS Nano
January 2025
Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland.
Controlling the light emitted by individual molecules is instrumental to a number of advanced nanotechnologies ranging from super-resolution bioimaging and molecular sensing to quantum nanophotonics. Molecular emission can be tailored by modifying the local photonic environment, for example, by precisely placing a single molecule inside a plasmonic nanocavity with the help of DNA origami. Here, using this scalable approach, we show that commercial fluorophores may experience giant Purcell factors and Lamb shifts, reaching values on par with those recently reported in scanning tip experiments.
View Article and Find Full Text PDFModular DNA origami-based electrochemical detection of DNA and proteins.
Proc Natl Acad Sci U S A
January 2025
Department of Bioengineering, California Institute of Technology, Pasadena, CA 91125.
The diversity and heterogeneity of biomarkers has made the development of general methods for single-step quantification of analytes difficult. For individual biomarkers, electrochemical methods that detect a conformational change in an affinity binder upon analyte binding have shown promise. However, because the conformational change must operate within a nanometer-scale working distance, an entirely new sensor, with a unique conformational change, must be developed for each analyte.
View Article and Find Full Text PDFA rapid, multiplexed and naked-eye readable paper assay for detecting heavy metal pollution in food using a catalytic colorimetric reaction.
J Dairy Sci
January 2025
College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China. Electronic address:
Heavy metal contamination is a serious food safety issue. Herein, we report a rapid, multiplexed and naked-eye readable method for detecting heavy metal pollution in food samples using a cheap colorimetric paper, including milk. We leverage the urease catalysis reaction to amplify the presence of heavy metal ions, Hg and Pb, by exploiting their strong inhibitory effect on urease.
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