A three-photon probe for highly selective and sensitive detection of Ag+ bearing an AIE fluorophore

Real-time monitoring of the column chromatographic process of Phellodendri Chinensis Cortex part II: multivariate statistical process control based on near-infrared spectroscopy

“…Five classical preprocessing methods were employed here to pretreat the NIR spectra: the first derivative, standard normal variate (SNV), Savizky-Golay (SG) smoothing, the first derivative-SG smoothing, and SNV-SG smoothing. [31][32][33] The data preprocessing was completed using MATLAB (R2019a, The Mathworks, Natick, MA, USA).…”

Aggregation‐induced emission materials for nonlinear optics

“…tested and verified two new three‐photon absorption (3PA) AIEgens Tpy and Tpy‐Hex for detecting the trace amounts of silver ions quantitatively in organism. [ 178 ] The 3PA coefficient of Tpy‐Hex could reach to 1.06 × 10 –22 cm 3 /W 2 with 3PA cross section σ 3 of 4.1 × 10 –78 cm 6 s 2 photon –2 , and the 3PF intensity also climbed with formation of aggregate. The Tpy‐Hex contained two main constituents TPE and pyridine.…”

“…Due to their NLO absorption properties, the light absorption capacity of SA materials descended in pace with the light intensity increasing. The saturable absorbers have been implemented extensively in the ultrafast photonics, [179] mode-locking, [180] and Q-switching. [181] Karuppusamy et al reported a series of polyaromatic AIE active luminogens 3-(naphthalen-1-yl)-1-phenyl-5-(pyren-1-yl)-4,5-dihydro-1H-pyrazole (PPN), 3-(anthracen-9-yl)-1-phenyl-5-(pyren-1-yl)-4,5-dihydro-1H-pyrazole (PPA), and 1-phenyl-3,5di(pyren-1-yl)-4,5-dihydro-1H-pyrazole (PPP), [182] with the tunable color emission from the yellow to red, which could also server as saturable absorbers.…”

Self-assembled emissive probe for efficient sensing of Fe(iii) and cysteine in a physiological medium: application in real water and food samples

“…17 AIE receptors have garnered significant interest as innovative fluorescent sensors for the sensitive and selective detection of a range of metal ions such as Fe(III), Cu(II), Co(II), Al(III), K(I), Ca(II), Cr(III), Zn(II), Ga(III), As(III), Ag(I), Cd(II), and Ni(II). [18][19][20][21][22][23][24][25][26][27][28][29] Therefore, this characteristic was utilized in the development of a sensor capable of functioning as a turn-on fluorescent sensor for Fe(III).…”