Thiourea-tagged poly(octadecyl acrylate) gels as fluoride and acetate responsive polymer gels through selective complexation

Fluoride and acetate-responsive polymer gels were prepared by incorporation of p-nitrophenylthiourea into poly(octadecyl acrylate) gels, and the colours and volumes were changed selectively in the presence of these ions by complexation in THF.     

On rational connectedness of globally F-regular threefolds

In this paper, we show that projective globally F  -regular threefolds, defined over an algebraically closed field of characteristic p≥11$p\ge 11$, are rationally chain connected.     

Proof-of-Principle Experiment of the Pseudorandom Multiplexing of White-Pump Light for Spectral Photothermal Microscopy

Absorption spectroscopy, coupled with photothermal super-resolution microscopy, is enabled by the frequency division multiplexing of the pump-light (Pu) wavelength whose spectral component is discriminated by the modulation frequency. This demonstrates a great advantage in availing multicolor image information. However, the response gain of the thermal lens signal to the spectral components is not uniform because of the limited relaxation rate of the thermal lens, i.e., the gains of the components assigned to the high-frequency modulations are diminished, thus resulting in a distorted absorption spectrum. In this study, white-pump light (Pu) is multiplexed by pseudonoise sequences (PNSs) to avoid the distortion. The frequency bandwidth of the PNSs is equalized, and the gains of the thermal lens generation to the respective wavelength components are balanced. The obtained results indicate that the modulation-waveform deformation due to the slow responses of the sample can also distort spectra. To mitigate the problem, the countermeasures required to compensate for this distortion are also discussed.