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In this work, a novel label-free chemiluminescent (CL) aptasensor has been developed for rapid and facile detection of adenosine triphosphate (ATP, as model analyte) using graphene oxide (GO) nano-platform. The strategy relies on the preferential binding of GO to single-stranded DNA (ssDNA) over rigid double-stranded DNA (dsDNA) or aptamer-target complexes,(More)
The nonlinear optical responses of two-dimensional (2D) few-layer tin diselenide (SnSe<sub>2</sub>) have been investigated in this work. By applying the Z-scan technique, the saturable absorption of SnSe<sub>2</sub> thin film has been observed at a wavelength of ~1μm, which enables SnSe<sub>2,</sub> a new saturable absorber for pulsed laser generation. A(More)
The femtosecond laser micromachining of transparent optical materials offers a powerful and feasible solution to fabricate versatile photonic components towards diverse applications. In this work, we report on a new design and fabrication of ridge waveguides in LiNbO3 crystal operating at the mid-infrared (MIR) band by all-femtosecond-laser(More)
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