High-Precision Optical Excited Heaters Based on Au Nanoparticles and Water-Soluble Porphyrin

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

The work detailed in the manuscript titled 'High-precision optical excited heaters based on Au nanoparticles and water-soluble porphyrin' has been thoroughly reviewed. It is recommended to publish the manuscript in the Metals journal following minor revisions.

1.     Authors are advised to compare the synthesized material with other nanoparticles/materials studied in existing literature.

2.     It is essential for the authors to discuss and compare their results with other Au nanoparticles present in the literature.

3.     The manuscript requires a thorough English language check.

4.     From the perspective of results and data, it is deemed sufficient for publication.

Comments on the Quality of English Language

The manuscript requires a thorough English language check.

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 2 Report

Comments and Suggestions for Authors

This is a facile experimental research work on Au NPs/porphyrin hybrid nanostructures for potential applications as controllable heaters. This proposed system achieves the possibility of precisely measuring the temperature of heaters themselves, and acts both as a parallel thermal agent and molecular fluorescent thermometer. However, it still requires some corrections and supplements before received:

1. In page 3, line 88, how does the shape of fluorescence spectra control the formation of hybrid structure? Please provide necessary explanations.

2. In page 4, line 121, the absorption spectra show four Q bands in the region of 520, 560, 585 and 650 nm, but figure 3(a) only displays two absorption peaks. Please explain the discrepancy.

3. In page 5, line 166 and 170, the porphyrin functions as a stabilizing shell and exhibits good water solubility. Please provide an explanation of how to overcome water solubility of the porphyrin in order to serve as a stable shell.

4. Figure 5(b) illustrates the correlation between the temperature and FIR, while the author's conclusion on page 6, line 176 also considers the porphyrin concentration. Please give an explanation.

5. Some related references about plasmons and their applications are suggested. For example, [eLight, 2022, 2(1): 25], [eLight, 2022, 2: 1-8].

Comments on the Quality of English Language

Minor editing of English language is required

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 3 Report

Comments and Suggestions for Authors

The authors synthesized gold NPs using laser ablation and then, hydrid gold NP-porphyrin structures in water. They applied them to heater and temperature monitoring.  This paper is interesting. I have several comments.

(1)  The gold NPs were synthesized by laser ablation in water. How the good colloidal stability was obtained ?

(2)  In addition, the gold NPs are neutral, but zeta potential was negative. Could you explain this ?

(3)  Could you explain the binding structure of porphyrine to gold NP ?

 

I suggest that the authors explain these comments in the text.

Author Response

Please see the attachment.

Author Response File: Author Response.pdf