I was reading your edited document again before I'm ready for submission and found several sentences do not make sense, which indicates you may have not fully understood (I can understand it from the non-expert perpective). However, I need to fully clarify the following sentences, so can you please answer to my questions as soon as possible? <br /><br />1. In the following sentence you edited below, I'm not sure if the phrase you used (i.e. by the toxic effects the same) convey&nbsp;what I meant to say. I meant that &nbsp;nano-TiO<sub>2</sub> extracted from the two model products&nbsp;not only significantly contributed to toxicity as measured with growth inhibition, but also when concentrations increased, it also affect the toxicity, the same as exposure time (this means, the toxicity was also proportional to exposure time). Hope you understand what I meant to say. So do you think your edited sentence conveys what I meant to say as described above?<br /><br />--&gt; The sentence you edited: "Based on the aforementioned results, it was discovered that nano-TiO<sub>2</sub> extracted from the two model products not only significantly contributed to toxicity as measured with growth inhibition, but also increased the concentrations affected by the toxic effects the sameduring the exposure time.&nbsp;"<br /><br /><br />2. In the following sentence, I'm not sure if the phrase ("raise issues about the need to develop safe nano-products and disposal methods as well as co...") convey what I meantot say. For example, I wanted to say that since improper disposal of nano-TiO<sub>2</sub> products would raise issues&nbsp;(i.e. pollution issue), we need to develop safe manufacturing of nano-products and disposal methods as well as controlling both intentional and unintentional release of nano-TiO<sub>2</sub> particles<br /><br />--&gt; The sentence you edited: Therefore, considering that inhibition of <em>T. pseudonana</em> increases by 50% from sunscreen and 35% from toothpaste after 72 hrs of exposure to the marine diatom algae, uncontrolled and improper disposal of nano-TiO<sub>2</sub> products will raise issues about the need to develop safe nano-products and disposal methods as well as control of both intentional and unintentional releases of nano-TiO<sub>2</sub> particles<br /><br />3. In the following sentence you edited, I guess you made a mistake. For example, the subject "the toxic effects" is plural, the verb must be "were" insted of "was". please confirm this. Correct the sentense.<br /><br />Similarly, the toxic effects of nano-ZnO on the marine algae <em>Dunaliella tertiolecta</em> was investigated and the results showed the increased growth inhibition as the concentrations of nano-ZnO and exposure times both increased<br /><br />4. In the following sentence you edited, I don't know why you express 1L as 1 liter? also it should be liter, not "liters" please chcek and confirm this.<br /><br />"...both in the form of industrial and extracted particles from ZnO sunscreen in 1 liters of artificial seawater containing an f/2 medium."<br /><br />5. In the following phrase as subtitle in the section, I meant to say "<br /><strong>Evaluation of nano-ZnO toxicity on marine algae - Effects of exposure time</strong><br /><br />I wonder if "and" is proper here.<br /><br />--&gt; <strong><strong>Evaluation of nano-ZnO toxicity on marine algae and effects of exposure time<br /><br />6. In your edited sentence below, "shown" should be "showed" please chcek and confirm this.<br /><br /><br />--&gt; The growth inhibition of <em>T. pseudonana</em> may depend on the types of nano-ZnO (i.e., industrial- and sunscreen-extracted nano-ZnO) at a constant concentration and the growth inhibition shown to be significant to the exposure time, whereas little effect of nano-ZnO concentration was observed on the extent of toxicity (Figs. 1a and 1b).<br /><br />7.&nbsp; In the following sentence,I wonder if &nbsp;nano-ZnO should be considered as singular. If that is the case, &nbsp;the verb should be "is" not "are"<br />please check and confirm this. Also can we just write it as "....nano-ZnO revealed? is it grammatically incorrect? how about we do simply say "...showed"<br /><br />--&gt; Interestingly, industrial nano-ZnO are revealed to be more toxic than sunscreen-derived nano-ZnO regardless of concentrations<br /><br />8. In the following sentence, I don't understand why you add "and"?, I think it should be just without "and", because what I meant to say is that at the highest concentration, a slightly more toxic effect is shown...<br />please check and let me know<br /><br />--&gt; whereas at a 10 times higher concentration, a negligible difference in the growth inhibition appeared though at the highest concentration and a slightly more toxic effect is shown in the industrial nano-ZnO. &nbsp;<br /></strong></strong><br />
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