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Interfacial self-assembly of SiO2-PNIPAM core-shell particles with varied crosslinking density (2022)
Journal Article
Ickler, M., Menath, J., Holstein, L., Rey, M., Buzza, D. M. A., & Vogel, N. (2022). Interfacial self-assembly of SiO2-PNIPAM core-shell particles with varied crosslinking density. Soft matter, 18(30), 5585-5597. https://doi.org/10.1039/d2sm00644h

Spherical particles confined to liquid interfaces generally self-assemble into hexagonal patterns. It was theoretically predicted by Jagla two decades ago that such particles interacting via a soft repulsive potential are able to form complex, anisot... Read More about Interfacial self-assembly of SiO2-PNIPAM core-shell particles with varied crosslinking density.

Persistent near-infrared photoconductivity of ZnO nanoparticles based on plasmonic hot charge carriers (2022)
Journal Article
Ibrahem, M. A., Verrelli, E., Cheng, F., Adawi, A. M., Bouillard, J. S. G., & O'Neill, M. (2022). Persistent near-infrared photoconductivity of ZnO nanoparticles based on plasmonic hot charge carriers. Journal of applied physics, 131(10), Article 103103. https://doi.org/10.1063/5.0079006

We report on the coupling of ZnO nanoparticles with plasmonic gold nanoislands in a solution-processed photodetector, which results in a clear enhancement in the optical absorption and the electrical responsivity of ZnO nanoparticles, to cover the vi... Read More about Persistent near-infrared photoconductivity of ZnO nanoparticles based on plasmonic hot charge carriers.

Förster Resonance Energy Transfer Rate and Efficiency in Plasmonic Nanopatch Antennas (2022)
Journal Article
Hamza, A. O., Bouillard, J. S. G., & Adawi, A. M. (in press). Förster Resonance Energy Transfer Rate and Efficiency in Plasmonic Nanopatch Antennas. Chemphotochem, https://doi.org/10.1002/cptc.202100285

Successful control of Förster resonance energy transfer (FRET) through the engineering of the local density of optical states (LDOS) will allow us to develop novel strategies to fully exploit this phenomenon in key enabling technologies. Here we pres... Read More about Förster Resonance Energy Transfer Rate and Efficiency in Plasmonic Nanopatch Antennas.

Defined core–shell particles as the key to complex interfacial self-assembly (2021)
Journal Article
Menath, J., Eatson, J., Brilmayer, R., Andrieu-Brunsen, A., Buzza, D. M. A., & Vogel, N. (2021). Defined core–shell particles as the key to complex interfacial self-assembly. Proceedings of the National Academy of Sciences of the United States of America, 118(52), Article e2113394118. https://doi.org/10.1073/pnas.2113394118

The two-dimensional self-assembly of colloidal particles serves as a model system for fundamental studies of structure formation and as a powerful tool to fabricate functional materials and surfaces. However, the prevalence of hexagonal symmetries in... Read More about Defined core–shell particles as the key to complex interfacial self-assembly.

Utilisation of CO2 as “Structure Modifier” of Inorganic Solids (2021)
Journal Article
Francesconi, M. G., Bennett, M. J., Benoit, D., & Dobson, I. (2022). Utilisation of CO2 as “Structure Modifier” of Inorganic Solids. Chemistry: a European journal, 28(6), Article e202103608. https://doi.org/10.1002/chem.202103608

Utilisation of CO2 as a chemical reagent is challenging, due to the molecule’s inherent chemical stability. However, CO2 reacts promptly at high temperature (~1000 C) with alkaline-earth oxides to form carbonates and such reactions are used towards... Read More about Utilisation of CO2 as “Structure Modifier” of Inorganic Solids.

Ultra-small FeS2nanoparticles for highly efficient chemoselective transfer hydrogenation of nitroarenes (2021)
Journal Article
Southouse, J. P., Lazzarini, L., Ibhadon, A. O., & Francesconi, M. G. (2021). Ultra-small FeS2nanoparticles for highly efficient chemoselective transfer hydrogenation of nitroarenes. New journal of chemistry = Nouveau journal de chimie, 45(38), 17808-17815. https://doi.org/10.1039/d1nj03297f

Ultra-small FeS2nanoparticles were prepared and used as catalysts in a hydrogen transfer reaction for the synthesis of substituted anilines. The catalytic performance is superior to current systems across all reactions, within the timeframe of two ho... Read More about Ultra-small FeS2nanoparticles for highly efficient chemoselective transfer hydrogenation of nitroarenes.

Deciphering helix assembly in the heliconical nematic phase via tender resonant X-ray scattering (2021)
Journal Article
Cao, Y., Feng, J., Nallapaneni, A., Arakawa, Y., Zhao, K., Zhang, H., …Liu, F. (2021). Deciphering helix assembly in the heliconical nematic phase via tender resonant X-ray scattering. Journal of Materials Chemistry C, 9(31), 10020-10028. https://doi.org/10.1039/d1tc02027g

Being a link between a uniaxial nematic and a chiral nematic, the twist bend nematic (NTB) has been an intriguing topic for research over the last decade as a key to understanding chirality generation. Accurate description and understanding of resona... Read More about Deciphering helix assembly in the heliconical nematic phase via tender resonant X-ray scattering.

Polarization tuning of an H1 organic–inorganic nano-cavity (2021)
Journal Article
Murshidy, M. M., Adawi, A. M., Fry, P. W., & Lidzey, D. G. (2021). Polarization tuning of an H1 organic–inorganic nano-cavity. Journal of applied physics, 129(20), Article 203103. https://doi.org/10.1063/5.0050458

We investigate the optical properties of the dipole-like modes of an H1 nano-cavity consisting of a single missing airhole imbedded into a triangular two-dimensional silicon nitride (Si3N4) based photonic crystal coated with a red-fluorescent molecul... Read More about Polarization tuning of an H1 organic–inorganic nano-cavity.

The interplay between spatial and heliconical orientational order in twist-bend nematic materials (2021)
Journal Article
Saha, R., Feng, C., Welch, C., Mehl, G. H., Feng, J., Zhu, C., …Jakli, A. (2021). The interplay between spatial and heliconical orientational order in twist-bend nematic materials. Physical chemistry chemical physics : PCCP, 23(7), 4055-4063. https://doi.org/10.1039/d0cp06633h

The helical pitch formed by organic molecules, such as the α-helix of proteins, usually requires hydrogen bonding between chiral units and long-range positional order. It was recently found that certain liquid crystal oligomers can have a twist-bend... Read More about The interplay between spatial and heliconical orientational order in twist-bend nematic materials.

Förster resonance energy transfer and the local optical density of states in plasmonic nanogaps (2021)
Journal Article
Hamza, A. O., Viscomi, F. N., Bouillard, J. S. G., & Adawi, A. M. (2021). Förster resonance energy transfer and the local optical density of states in plasmonic nanogaps. Journal of Physical Chemistry Letters, 12(5), 1507-1513. https://doi.org/10.1021/acs.jpclett.0c03702

Förster resonance energy transfer (FRET) is a fundamental phenomenon in photosynthesis and is of increasing importance for the development and enhancement of a wide range of optoelectronic devices, including color-tuning LEDs and lasers, light harves... Read More about Förster resonance energy transfer and the local optical density of states in plasmonic nanogaps.

Molecular biaxiality determines the helical structure - infrared measurements of the molecular order in the nematic twist-bend phase of difluoro terphenyl dimer (2021)
Journal Article
Merkel, K., Loska, B., Welch, C., Mehl, G. H., & Kocot, A. (2021). Molecular biaxiality determines the helical structure - infrared measurements of the molecular order in the nematic twist-bend phase of difluoro terphenyl dimer. Physical chemistry chemical physics : PCCP, 23(7), 4151-4160. https://doi.org/10.1039/d1cp00187f

Fourier-transform infrared polarized spectroscopy was employed, to obtain the three components of the infrared absorbance for a series of bent-shaped dimers containing double fluorinated terphenyl core (DTC5Cn, n = 5, 7, 9, 11). The data were used to... Read More about Molecular biaxiality determines the helical structure - infrared measurements of the molecular order in the nematic twist-bend phase of difluoro terphenyl dimer.

The role of intermolecular interactions in stabilizing the structure of the nematic twist-bend phase (2021)
Journal Article
Merkel, K., Loska, B., Welch, C., Mehl, G. H., & Kocot, A. (2021). The role of intermolecular interactions in stabilizing the structure of the nematic twist-bend phase. RSC advances, 11(5), 2917-2925. https://doi.org/10.1039/d0ra10481g

The understanding of the relationship between molecular structure and the formation of the nematic twist-bend phase is still at an early stage of development. This is mainly related to molecular geometry, while the correlation between the nematic twi... Read More about The role of intermolecular interactions in stabilizing the structure of the nematic twist-bend phase.

Two helices from one chiral centre – self organization of disc shaped chiral nanoparticles (2020)
Journal Article
Mehl, G. H., Yu, H., Qu, W., & Liu, F. (2020). Two helices from one chiral centre – self organization of disc shaped chiral nanoparticles. Chemical science, 12(5), 1778-1782. https://doi.org/10.1039/d0sc05100d

Gold nanoparticles (AuNPs) have been prepared and surfacefunctionalized with a mixture of 1-hexanethiol co-ligands and chiral discogen ligands separated from a disulfide function via a flexible spacer. Polarized optical microscopy together with di... Read More about Two helices from one chiral centre – self organization of disc shaped chiral nanoparticles.

Effect of calcination time on the physicochemical properties and photocatalytic performance of carbon and nitrogen co-doped tio2 nanoparticles (2020)
Journal Article
Mouele, E. S. M., Dinu, M., Cummings, F., Fatoba, O. O., Myint, M. T. Z., Kyaw, H. H., …Petrik, L. F. (2020). Effect of calcination time on the physicochemical properties and photocatalytic performance of carbon and nitrogen co-doped tio2 nanoparticles. Catalysts, 10(8), 1-27. https://doi.org/10.3390/catal10080847

The application of highly active nano catalysts in advanced oxidation processes (AOPs) improves the production of non-selective hydroxyl radicals and co-oxidants for complete remediation of polluted water. This study focused on the synthesis and char... Read More about Effect of calcination time on the physicochemical properties and photocatalytic performance of carbon and nitrogen co-doped tio2 nanoparticles.

The first microsolvation step for furans : new experiments and benchmarking strategies (2020)
Journal Article
Gottschalk, H. C., Poblotzki, A., Fatima, M., Obenchain, D. A., Pérez, C., Antony, J., …Schnell, M. (2020). The first microsolvation step for furans : new experiments and benchmarking strategies. The Journal of chemical physics, 152(16), 164303. https://doi.org/10.1063/5.0004465

The site-specific first microsolvation step of furan and some of its derivatives with methanol is explored to benchmark the ability of quantum-chemical methods to describe the structure, energetics, and vibrational spectrum at low temperature. Infrar... Read More about The first microsolvation step for furans : new experiments and benchmarking strategies.

Pattern formation in two-dimensional hard-core/soft-shell systems with variable soft shell profiles (2020)
Journal Article
Somerville, W. R. C., Law, A. D., Rey, M., Vogel, N., Archer, A. J., & Buzza, D. M. A. (2020). Pattern formation in two-dimensional hard-core/soft-shell systems with variable soft shell profiles. Soft matter, 16(14), 3564-3573. https://doi.org/10.1039/d0sm00092b

Hard-core/soft shell (HCSS) particles have been shown to self-assemble into a remarkably rich variety of structures under compression due to the simple interplay between the hard-core and soft-shoulder length scales in their interactions. Most studie... Read More about Pattern formation in two-dimensional hard-core/soft-shell systems with variable soft shell profiles.

Temperature dependence of bend elastic constant in oblique helicoidal cholesterics (2020)
Journal Article
Iadlovska, O. S., Babakhanova, G., Mehl, G. H., Welch, C., Cruickshank, E., Strachan, G. J., …Lavrentovich, O. D. (2020). Temperature dependence of bend elastic constant in oblique helicoidal cholesterics. Physical Review Research, 2(1), Article 013238. https://doi.org/10.1103/PhysRevResearch.2.013248

Elastic moduli of liquid crystals, known as Frank constants, are of quintessential importance for understanding fundamental properties of these materials and for the design of their applications. Although there are many methods to measure the Frank c... Read More about Temperature dependence of bend elastic constant in oblique helicoidal cholesterics.

Removal of Human Leukemic Cells from Peripheral Blood Mononuclear Cells by Cell Recognition Chromatography with Size Matched Particle Imprints (2020)
Journal Article
Chester, R., Das, A. A. K., Medlock, J., Nees, D., Allsup, D. J., Madden, L. A., & Paunov, V. N. (2020). Removal of Human Leukemic Cells from Peripheral Blood Mononuclear Cells by Cell Recognition Chromatography with Size Matched Particle Imprints. ACS Applied Bio Materials, 3(2), 789-800. https://doi.org/10.1021/acsabm.9b00770

We report a cell recognition chromatography approach for blood cancer cell separation from healthy peripheral blood mononuclear cells (PBMCs) based on sizematched functionalized particle imprints. Negative imprints were prepared from layers of 15 μm... Read More about Removal of Human Leukemic Cells from Peripheral Blood Mononuclear Cells by Cell Recognition Chromatography with Size Matched Particle Imprints.

Surface-Modified Zinc Oxide Nanoparticles for Antialgal and Antiyeast Applications (2020)
Journal Article
Halbus, A. F., Horozov, T. S., & Paunov, V. N. (2020). Surface-Modified Zinc Oxide Nanoparticles for Antialgal and Antiyeast Applications. ACS Applied Nano Materials, 3(1), 440-451. https://doi.org/10.1021/acsanm.9b02045

We explored the factors and mechanisms of the anti-yeast and anti-algal effect of zinc oxide nanoparticles (ZnONPs) coated with zinc sulfide (ZnS), silica (SiO2), poly(sodium 4-styrene sulfonate) sodium salt (PSS) and poly(allylamine hydrochloride) (... Read More about Surface-Modified Zinc Oxide Nanoparticles for Antialgal and Antiyeast Applications.

Enhanced chemical etch rate of borosilicate glass via spatially resolved laser-generated color centers (2019)
Journal Article
Serkov, A. A., & Snelling, H. V. (2020). Enhanced chemical etch rate of borosilicate glass via spatially resolved laser-generated color centers. Journal of Physics D: Applied Physics, 53(13), Article 135306. https://doi.org/10.1088/1361-6463/ab6515

© 2020 IOP Publishing Ltd. In this work, it is shown that controllable increases in chemical reactivity of borosilicate glass can be induced through spatially resolved femtosecond laser irradiation at fluence values significantly lower than the damag... Read More about Enhanced chemical etch rate of borosilicate glass via spatially resolved laser-generated color centers.