Primary surface measurement reported
Static contact angles (water, glycerol, diiodomethane) on PSe films, used to calculate surface energy (dispersive and polar components) via the Owens–Wendt–Rabel–Kaelbel (OWRK) model.
Client Citation Analysis
Buffer Components Incorporate into the Framework of Polyserotonin Nanoparticles and Films during Synthesis
This study examines how synthesis-buffer chemistry affects polyserotonin (PSe) nanoparticles and films, using static contact angles on PSe films to calculate surface energy components.
At-a-Glance Summary
Dropometer attribution in the paper
Contact angles are attributed to “Droplet Smart Tech (Markham, ON, Canada)”, with droplets imaged using a 0.3 Mp camera, angles extracted using an in-house written program, and surface energy calculated using OWRK.
How the surface-tension / contact-angle data were used in the study
The static contact angles were used to compute surface energy of PSe film-coated glass and compare how film coatings synthesized in different buffers change wetting behavior and surface-energy components.
Paper Details
Title
Buffer Components Incorporate into the Framework of Polyserotonin Nanoparticles and Films during Synthesis
Authors
Keuna Jeon; Justin Andrei Asuncion; Alexander Lucien Corbett; Tiange Yuan; Meera Patel; Nesha May Octavio Andoy; Christian Titus Kreis; Oleksandr Voznyy; Ruby May Arana Sullan
Journal
Nanomaterials
Year
2022
Volume
12
Pages / Article
2027
License
Creative Commons Attribution (CC BY) license (CC BY 4.0)
Journal context
What it is
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How to read it
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Scopus metrics (Elsevier / Scopus rating 2024)
CiteScore 2024
9.2
CiteScore subject ranks (CiteScore 2024)
- Q1 - General Chemical Engineering (39/274)
- Q1 - General Materials Science (82/460)
Journal Impact Factor (Clarivate JCR)
Journal Impact Factor (JCR 2024)
4.3
5-Year Impact Factor
4.7
JCR category rank
- Q2 - Physics, Applied
- Q2 - Chemistry, Multidisciplinary
- Q2 - Materials Science, Multidisciplinary
- Q2 - Nanoscience and Nanotechnology
What Was Measured
Primary surface / interfacial measurement
Static contact angles on PSe films using three probe liquids (milli-Q water, glycerol, diiodomethane), with surface energy (including dispersive and polar components) calculated using the OWRK model.
Supporting measurements
Film thickness was determined via AFM scratch tests, and film adhesion-related interaction metrics were obtained from AFM force–distance curves under defined buffer conditions. The study also reports particle growth/structure and related characterization via UV–Vis, TEM, DLS, zeta potential (PALS), EPR, and DFT calculations.
Role of the Dropometer
Static contact angles were measured using Droplet Smart Tech (Markham, ON, Canada) by manually placing 20 µL droplets of milli-Q water, glycerol, and diiodomethane onto PSe films, imaging each droplet with a 0.3 Mp camera, and estimating contact angles using an in-house written program; the resulting angles were then used to calculate surface energy using the OWRK model.
These contact-angle-derived surface-energy results were used to compare how PSe film coatings synthesized in different buffers alter glass wettability and shift the balance of dispersive vs polar surface-energy contributions.
Key Findings
PSe film coating increases hydrophilicity
Across the buffer systems summarized, the PSe film coating makes glass more hydrophilic, reported as decreasing the water contact angle by over 15°.
Surface energy increases upon PSe film coating
The study reports that surface energy of glass increases from approximately ~47 to ~61 mJ/m² when coated with PSe films (as summarized in Table S1).
Dispersive contribution dominates the surface-energy increase
The reported increase in overall surface energy is described as having a higher contribution from the dispersive component than from the polar component (Table S1).
Figures & Visuals
Figure S5 — Contact angle image set used for surface-energy calculations
What it shows
Shows the static contact angle images on PSe films for the three probe liquids used in the OWRK surface-energy analysis.
Table S1 — Summary table linking contact angles to surface energy components
What it shows
Summarizes film properties used in the discussion of contact-angle changes and the resulting surface energy (including dispersive and polar components).
Why It Matters
Within the study’s buffer-dependent synthesis framework, the contact angle measurements provide a quantitative comparison of how PSe films modify glass wetting behavior across buffer conditions, and they enable calculation of surface energy components rather than relying on a single contact-angle value alone.
The resulting surface-energy decomposition (dispersive vs polar) supports the paper’s interpretation of how PSe film coating changes surface interactions, alongside the study’s broader nanoparticle/film characterization dataset.
Practical Takeaways
Three-liquid contact-angle workflow
Static contact angles were collected using 20 µL drops of milli-Q water, glycerol, and diiodomethane, with camera-based imaging and in-house angle extraction feeding an OWRK surface-energy calculation.
Hydrophilicity shift after coating
The reported outcome for PSe film-coated glass is a reduction in water contact angle by over 15° across the buffer systems summarized.
Surface energy rises with coating
The reported total surface energy increases from ~47 to ~61 mJ/m² when glass is coated with PSe films (Table S1).
Dispersive component drives the increase
The study attributes more of the surface-energy increase to the dispersive component than to the polar component (Table S1).