In the original publication of our paper, "Fluorescence immunoassay based on alkaline phosphatase-induced in situ generation of fluorescent non-conjugated polymer dots", which appeared in the journal of Chinese Chemical Letters, Volume 34, Issue 3, March 2023, 107672, DOI: 10.1016/j.cclet.2022.07.015, we have identified several errors that require correction. We apologize for any inconvenient caused and appriciate the opportunity to clarify the following:

Error Description:

Figs. 3A and 3C were incorrectly placed as the same AA detection fluorescence spectra and corresponding linear plots as Figs. 2A and 2B

(wrong picture)

Fig. 3. (A) Fluorescence emission spectra at different ALP concentrations excited at 350 nm. (B, C) Linear range of fluorescence intensities against concentrations of ALP from 0 to 150 mU/mL. (D) Selectivity investigation of the proposed sensing system for ALP activity (60 mU/mL). The concentrations of interfering proteins were 10 µg/mL, respectively. (E) Fluorescence spectra of the ALP assay with different concentrations of Na₃VO₄. (F) Sigmoidal fitting of the fluorescence intensity versus the logarithm of Na₃VO₄ concentrations.

Correction:

We have corrected Figs. 3A and 3C as fluorescence emission spectra at different ALP concentrations excited at 350 nm and the linear range plot of fluorescence intensities against concentrations of ALP from 15 mU/mL to 150 mU/mL.

(corrected picture)

Fig. 3. (A) Fluorescence emission spectra at different ALP concentrations excited at 350 nm. (B, C) Linear range of fluorescence intensities against concentrations of ALP from 0 to 150 mU/mL. (D) Selectivity investigation of the proposed sensing system for ALP activity (60 mU/mL). The concentrations of interfering proteins were 10 µg/mL, respectively. (E) Fluorescence spectra of the ALP assay with different concentrations of Na₃VO₄. (F) Sigmoidal fitting of the fluorescence intensity versus the logarithm of Na₃VO₄ concentrations.

This correction do not significantly impact the overall findings and conclusions of the paper. In fact, we had keep the figures correct during the peer review process, however, Fig. 3 was re-organized and Fig. 3A and 3C were incorrectly placed in the proofreading stage. We would like to assure readers that the corrected figures do not alter the interpretations or validity of the research.

We sincerely apologize for any confusion on the error may have caused and appriciate the opportunity to rectify them. We thank the editors and readers for their understanding.

Sincerely,

Prof. Jian Sun on behalf of all co-authers

E-mail: jiansun@ciac.ac.cn

Telephone: +86 431 85262063