Making nonpermanent hydrophilic surface

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Discussion Overview

The discussion revolves around methods to create a nonpermanent hydrophilic surface on glass microscope slides, aiming for a thin water film of 100 to 500 micrometers. Participants explore simple chemical solutions and techniques without resorting to complicated coating methods.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant seeks easily obtainable chemicals to make a glass surface hydrophilic temporarily.
  • Another suggests making the glass positively charged and coating it with an insulator, but expresses uncertainty about the effectiveness.
  • A different participant claims that glass has perfect wettability by water and emphasizes the importance of cleaning the glass surface from grease.
  • Another suggestion includes using RainX Anti Fog as a potential solution.

Areas of Agreement / Disagreement

Participants express varying opinions on the best methods to achieve hydrophilicity, with no consensus on a single effective approach. Some participants challenge or refine earlier claims without reaching a definitive conclusion.

Contextual Notes

There are limitations regarding the assumptions about the wettability of glass and the effectiveness of suggested methods, which remain unresolved.

Simonas
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Hello everyone,
i am looking for information on relatively simple ways to make a glass surface (microscope slide) hydrophilic, so a water film on this glass sample can be made as thin as possible (100 - 500 um). It does not have to be permanent, so perhaps someone can recommend some easily obtainable chemicals (if there are any) that would perform such a task by covering the sample with them. Complicated coating techniques are not favourable in such a practice.
Much thanks.
 
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Welcome to PF;
Hmmm ... I suppose you could try to make it positive charged and coat it with an insulator (varnish?)
... rub the glass with ethanol? That would be very temporary, and smeary too.
Can't think of a good way to do it easily.
 
Simonas said:
Hello everyone,
i am looking for information on relatively simple ways to make a glass surface (microscope slide) hydrophilic, so a water film on this glass sample can be made as thin as possible (100 - 500 um). It does not have to be permanent, so perhaps someone can recommend some easily obtainable chemicals (if there are any) that would perform such a task by covering the sample with them. Complicated coating techniques are not favourable in such a practice.
Much thanks.

As far, as I know, glass has perfect wettability by water(week liquid on a strong solid). So, all you need is to clean it, especially from grease(week surface)
 
use RainX Anti Fog or make your own with this.
 

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