openQCM – Powered by Novaetech S.r.l
Publications citing the applications of openQCM (by Novaetech S.r.l.) instruments and accessories in scientific research.
The list of scientific papers published on the most important journals showing the usage of openQCM in several scientific fields, such as thin film deposition, chemical sensors, biological research and biosensors.
Because of the large number of publications, we are reorganizing everything by subject areas. This will take some time. Thank you for your patience
György, Dr. Csilla; Kirkman, Dr. Paul M.; Neal, Dr. Thomas J.; Chan, Dr. Derek H. H.; Williams, Megan; Smith, Dr. Timothy; Growney, Dr. David J.; Armes, Prof. Steven P.
Enhanced Adsorption of Epoxy-Functional Nanoparticles onto Stainless Steel Significantly Reduces Friction in Tribological Studies Journal Article
In: Angewandte Chemie International Edition, 2023.
Abstract | Links | BibTeX | Tags: epoxy-functional noparticles, nanoparticles, polymerization, polymerization-induced, QCM-D, Quartz Crystal Microbalance, RAFT, self-assembly, stainless steel
@article{armesenhanced,
title = {Enhanced Adsorption of Epoxy-Functional Nanoparticles onto Stainless Steel Significantly Reduces Friction in Tribological Studies},
author = {Dr. Csilla György and Dr. Paul M. Kirkman and Dr. Thomas J. Neal and Dr. Derek H. H. Chan and Megan Williams and Dr. Timothy Smith and Dr. David J. Growney and Prof. Steven P. Armes},
url = {https://onlinelibrary.wiley.com/doi/10.1002/anie.202218397},
doi = {https://doi.org/10.1002/anie.202218397},
year = {2023},
date = {2023-01-18},
urldate = {2023-01-18},
journal = {Angewandte Chemie International Edition},
publisher = {Wiley Online Library},
abstract = {Epoxy-functional sterically-stabilized diblock copolymer nanoparticles (~27 nm) are prepared via RAFT dispersion polymerization in mineral oil. Nanoparticle adsorption onto stainless steel is examined using a quartz crystal microbalance. Incorporating epoxy groups within the steric stabilizer chains results in a near two-fold increase in the adsorbed amount, Γ, at 20 °C (7.6 mg m-2) compared to epoxy-core functional nanoparticles (3.7 mg m-2) or non-functional nanoparticles (3.8 mg m-2). A larger difference in Γ is observed at 40 °C; this suggests chemical adsorption of the nanoparticles rather than merely physical adsorption. A remarkable near five-fold increase in Γ is observed for larger (~50 nm) epoxy-functional nanoparticles compared to non-functional nanoparticles (31.3 vs. 6.4 mg m-2, respectively). Tribological studies conducted at 60-120 °C confirm that the adsorption of epoxy-functional nanoparticles leads to a significant reduction in the friction coefficient.},
key = {QCM-D, nanoparticles},
keywords = {epoxy-functional noparticles, nanoparticles, polymerization, polymerization-induced, QCM-D, Quartz Crystal Microbalance, RAFT, self-assembly, stainless steel},
pubstate = {published},
tppubtype = {article}
}
Brotherton, Emma E; Josland, Daniel; Gyorgy, Csilla; Johnson, Edwin C; Chan, Derek HH; Smallridge, Mark J; Armes, Steven P
Histidine-Functionalized Diblock Copolymer Nanoparticles Exhibit Enhanced Adsorption onto Planar Stainless Steel Journal Article
In: Macromolecular Rapid Communications, pp. 2200903, 2022.
Abstract | Links | BibTeX | Tags: Histidine-Functionalized, nanoparticles, polymerization, QCM
@article{brotherton2022histidine,
title = {Histidine-Functionalized Diblock Copolymer Nanoparticles Exhibit Enhanced Adsorption onto Planar Stainless Steel},
author = {Emma E Brotherton and Daniel Josland and Csilla Gyorgy and Edwin C Johnson and Derek HH Chan and Mark J Smallridge and Steven P Armes},
url = {https://onlinelibrary.wiley.com/doi/10.1002/marc.202200903},
doi = {https://doi.org/10.1002/marc.202200903},
year = {2022},
date = {2022-12-19},
urldate = {2022-01-01},
journal = {Macromolecular Rapid Communications},
pages = {2200903},
publisher = {Wiley Online Library},
abstract = {RAFT aqueous emulsion polymerization of isopropylideneglycerol monomethacrylate (IPGMA) is used to prepare a series of PGEO5MA46-PIPGMAy nanoparticles, where PGEO5MA is a hydrophilic methacrylic steric stabilizer block bearing pendent cis-diol groups. TEM studies confirmed that well-defined spherical nanoparticles were obtained while DLS analysis indicated that the z-average particle diameter could be adjusted from 68 nm to 188 nm by systematically varying the target degree of polymerization for the core-forming PIPGMA block. Sodium periodate was employed as a selective oxidant to convert the cis-diol groups on PGEO5MA46-PIPGMA500 and PGEO5MA46-PIPGMA1000 nanoparticles into the analogous aldehyde-functionalized nanoparticles, which were then reacted with histidine via reductive amination. In each case, the extent of functionalization was more than 99% as judged by 1H NMR spectroscopy. Moreover, aqueous electrophoresis studies indicated that such derivatization converted initially neutral nanoparticles into nanoparticles that exhibit an isoelectric point (IEP) at around pH 7. Interestingly, DLS studies confirmed that such histidine-derivatized nanoparticles remained colloidally stable over a wide pH range, with no sign of any aggregation at around the IEP. A quartz crystal microbalance (QCM) was employed at 25 °C to assess the extent of adsorption of both the cis-diol- and histidine-functionalized nanoparticles onto a planar stainless steel substrate at pH 6. The histidine-bearing nanoparticles adsorbed much more strongly than their cis-diol counterparts. For the highest adsorbed amount of 70.5 mg m-2, the adsorbed layer of nanoparticles was examined by SEM, which enabled a fractional surface coverage of 0.23 to be estimated via digital image analysis.},
key = {Histidine-Functionalized, QCM, nanoparticles, polymerization},
keywords = {Histidine-Functionalized, nanoparticles, polymerization, QCM},
pubstate = {published},
tppubtype = {article}
}
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