All Outputs (1143)

Breathing new life into old antibiotics: Overcoming antibacterial resistance by antibiotic-loaded nanogel carriers with cationic surface functionality (2019)
Journal Article
Weldrick, P. J., Iveson, S., Hardman, M. J., & Paunov, V. N. (2019). Breathing new life into old antibiotics: Overcoming antibacterial resistance by antibiotic-loaded nanogel carriers with cationic surface functionality. Nanoscale, 11(21), 10472-10485. https://doi.org/10.1039/c8nr10022e

Multidrug-resistant pathogens are prevalent in chronic wounds. There is an urgent need to develop novel antimicrobials and formulation strategies that can overcome antibiotic resistance and provide a safe alternative to traditional antibiotics. This... Read More about Breathing new life into old antibiotics: Overcoming antibacterial resistance by antibiotic-loaded nanogel carriers with cationic surface functionality.

Pretransitional behavior of viscoelastic parameters at the nematic to twist-bend nematic phase transition in flexible: N -mers (2019)
Journal Article
Parsouzi, Z., Babakhanova, G., Rajabi, M., Saha, R., Gyawali, P., Turiv, T., Wang, H., Baldwin, A., Welch, C., Mehl, G. H., Gleeson, J. T., Jakli, A., Lavrentovich, O. D., & Sprunt, S. (2019). Pretransitional behavior of viscoelastic parameters at the nematic to twist-bend nematic phase transition in flexible: N -mers. Physical chemistry chemical physics : PCCP, 21(24), 13078-13089. https://doi.org/10.1039/c9cp00984a

© 2019 the Owner Societies. We report dynamic light scattering measurements of the orientational (Frank) elastic constants and associated viscosities among a homologous series of a liquid crystalline dimer, trimer, and tetramer exhibiting a uniaxial... Read More about Pretransitional behavior of viscoelastic parameters at the nematic to twist-bend nematic phase transition in flexible: N -mers.

Dynamic response of large tilt-angle flexoelectro-optic liquid crystal modulators (2019)
Journal Article
Fells, J. A. J., Welch, C., Yip, W. C., Elston, S. J., Booth, M. J., Mehl, G. H., Wilkinson, T. D., & Morris, S. M. (2019). Dynamic response of large tilt-angle flexoelectro-optic liquid crystal modulators. Optics express, 27(11), 15184-15193. https://doi.org/10.1364/OE.27.015184

Journal © 2019 We present here the first time-resolved tilt-angle and retardance measurements for large-tilt (>45°) flexoelectro-optic liquid crystal modulators. These devices have potential for next generation fast switching (>1 kHz), 0-2π analog ph... Read More about Dynamic response of large tilt-angle flexoelectro-optic liquid crystal modulators.

Biphasic biocatalysis using a CO2-switchable Pickering emulsion (2019)
Journal Article
Yu, S., Zhang, D., Jiang, J., Cui, Z., Xia, W., Binks, B. P., & Yang, H. (2019). Biphasic biocatalysis using a CO2-switchable Pickering emulsion. Green chemistry : an international journal and green chemistry resource : GC, 21(15), 4062-4068. https://doi.org/10.1039/c8gc03879a

Biphasic biocatalyses such as the hydrolysis of olive oil and the esterification of octanol with oleic acid were performed in a CO2/N2-switchable Pickering oil-in-water emulsion stabilized by silica nanoparticles hydrophobized in situ by a CO2/N2-swi... Read More about Biphasic biocatalysis using a CO2-switchable Pickering emulsion.

Constructed wetlands for steel slag leachate management: Partitioning of arsenic, chromium, and vanadium in waters, sediments, and plants (2019)
Journal Article
Gomes, H., Mayes, W. M., Whitby, P., & Rogerson, M. (2019). Constructed wetlands for steel slag leachate management: Partitioning of arsenic, chromium, and vanadium in waters, sediments, and plants. Journal of environmental management, 243, 30-38. https://doi.org/10.1016/j.jenvman.2019.04.127

© 2019 The Authors Constructed wetlands can treat highly alkaline leachate resulting from the weathering of steel slag before reuse (e.g. as aggregate)or during disposal in repositories and legacy sites. This study aimed to assess how metal(loid)s s... Read More about Constructed wetlands for steel slag leachate management: Partitioning of arsenic, chromium, and vanadium in waters, sediments, and plants.

Fast and low loss flexoelectro-optic liquid crystal phase modulator with a chiral nematic reflector (2019)
Journal Article
Wang, X., Fells, J. A., Yip, W. C., Ali, T., Lin, J. D., Welch, C., Mehl, G. H., Booth, M. J., Wilkinson, T. D., Morris, S. M., & Elston, S. J. (2019). Fast and low loss flexoelectro-optic liquid crystal phase modulator with a chiral nematic reflector. Scientific reports, 9(1), Article 7016. https://doi.org/10.1038/s41598-019-42831-5

© 2019, The Author(s). In this paper, we demonstrate a flexoelectro-optic liquid crystal phase-only device that uses a chiral nematic reflector to achieve full 2π phase modulation. This configuration is found to be very tolerant to imperfections in t... Read More about Fast and low loss flexoelectro-optic liquid crystal phase modulator with a chiral nematic reflector.

Self-grafting copper oxide nanoparticles show a strong enhancement of their anti-algal and anti-yeast action (2019)
Journal Article
Halbus, A. F., Horozov, T. S., & Paunov, V. N. (2019). Self-grafting copper oxide nanoparticles show a strong enhancement of their anti-algal and anti-yeast action. Nanoscale advances, 1(6), 2323-2336. https://doi.org/10.1039/c9na00099b

© 2019 The Royal Society of Chemistry. We have developed and tested copper oxide nanoparticles (CuONPs) grafted with (3-glycidyloxypropyl)trimethoxysilane (GLYMO) and coupled with 4-hydroxyphenylboronic acid (4-HPBA), which provides a very strong boo... Read More about Self-grafting copper oxide nanoparticles show a strong enhancement of their anti-algal and anti-yeast action.

Emulsions stabilized with polyelectrolyte complexes prepared from a mixture of a weak and a strong polyelectrolyte (2019)
Journal Article
Bago Rodriguez, A. M., Binks, B. P., & Sekine, T. (2019). Emulsions stabilized with polyelectrolyte complexes prepared from a mixture of a weak and a strong polyelectrolyte. Langmuir : the ACS journal of surfaces and colloids, 35(20), 6693-6707. https://doi.org/10.1021/acs.langmuir.9b00897

The possibility of stabilizing emulsions with polyelectrolyte complexes (PEC) obtained from the interaction of two non-surface-active oppositely charged polyelectrolytes (PEL) is described. Poly(allylamine hydrochloride) (PAH) and poly(4-styrene sulf... Read More about Emulsions stabilized with polyelectrolyte complexes prepared from a mixture of a weak and a strong polyelectrolyte.

Bioimprint aided cell recognition and depletion of human leukemic HL60 cells from peripheral blood (2019)
Journal Article
Das, A. A., Medlock, J., Liang, H., Nees, D., Allsup, D. J., Madden, L. A., & Paunov, V. N. (2019). Bioimprint aided cell recognition and depletion of human leukemic HL60 cells from peripheral blood. Journal of Materials Chemistry B, 7(22), 3497-3504. https://doi.org/10.1039/c9tb00679f

We report a large scale preparation of bioimprints of layers of cultured human leukemic HL60 cells which can perform cell shape and size recognition from a mixture with peripheral blood mononuclear cells (PBMCs). We demonstrate that the bioimprint-ce... Read More about Bioimprint aided cell recognition and depletion of human leukemic HL60 cells from peripheral blood.

A method for determining average iron content of ferritin by measuring its optical dispersion (2019)
Journal Article
Gupta, R., Alamrani, N. A., Greenway, G. M., Pamme, N., & Goddard, N. J. (2019). A method for determining average iron content of ferritin by measuring its optical dispersion. Analytical chemistry, 91(11), 7366-7372. https://doi.org/10.1021/acs.analchem.9b01231

© 2019 American Chemical Society. We report a method where the refractive index increments of an iron storage protein, ferritin, and apoferritin (ferritin minus iron) were measured over the wavelength range of 450-678 nm to determine the average iron... Read More about A method for determining average iron content of ferritin by measuring its optical dispersion.

Stabilization of Pd3−xIn1+x polymorphs with Pd-like crystal structure and their superior performance as catalysts for semi-hydrogenation of alkynes (2019)
Journal Article
Johnston, S. K., Bryant, T. A., Strong, J., Lazzarini, L., Ibhadon, A. O., & Francesconi, M. G. (2019). Stabilization of Pd3−xIn1+x polymorphs with Pd-like crystal structure and their superior performance as catalysts for semi-hydrogenation of alkynes. ChemCatChem, 11(12), 2909-2918. https://doi.org/10.1002/cctc.201900391

Selective hydrogenation (semi-hydrogenation) reactions of alkynes rely on Pd-based catalysts to provide the correct pathway to favour formation of double bonds and avoid full hydrogenation to single bonds. Here, we present the preparation and charact... Read More about Stabilization of Pd3−xIn1+x polymorphs with Pd-like crystal structure and their superior performance as catalysts for semi-hydrogenation of alkynes.

A comprehensive experimental and theoretical study of the CO + NO reaction catalyzed by Au/Ni nanoparticles (2019)
Journal Article
Holgado, J. P., Wheatley, A. E., Kyriakou, G., Márquez, A. M., Holgado, J. P., Taylor, M. J., Wheatley, A. E. H., Mehta, J. P., Fernández Sanz, J., Beaumont, S. K., & Lambert, R. M. (2019). A comprehensive experimental and theoretical study of the CO + NO reaction catalyzed by Au/Ni nanoparticles. ACS Catalysis, 9(6), 4919-4929. https://doi.org/10.1021/acscatal.8b05154

The catalytic and structural properties of five different nanoparticle catalysts with varying Au/Ni composition were studied by six different methods, including in situ X-ray absorption spectroscopy and density functional theory (DFT) calculations. T... Read More about A comprehensive experimental and theoretical study of the CO + NO reaction catalyzed by Au/Ni nanoparticles.

Spatial and temporal occurrence of pharmaceuticals in UK estuaries (2019)
Journal Article
Letsinger, S., Kay, P., Rodriguez-Mozaz, S., Villagrassa, M., Barceló, D., & Rotchell, J. M. (2019). Spatial and temporal occurrence of pharmaceuticals in UK estuaries. The Science of the total environment, 678, 74-84. https://doi.org/10.1016/j.scitotenv.2019.04.182

There is a lack of data on the occurrence of pharmaceuticals in estuaries worldwide, with little understanding of their temporal and spatial variations globally. Ibuprofen, paracetamol, diclofenac, trimethoprim and citalopram were measured in twelve... Read More about Spatial and temporal occurrence of pharmaceuticals in UK estuaries.

Boosting the antimicrobial action of vancomycin formulated in shellac nanoparticles of dual-surface functionality (2019)
Journal Article
Al-Obaidy, S. S., Halbus, A. F., Greenway, G. M., & Paunov, V. N. (2019). Boosting the antimicrobial action of vancomycin formulated in shellac nanoparticles of dual-surface functionality. Journal of Materials Chemistry B, 7(19), 3119-3133. https://doi.org/10.1039/c8tb03102a

We report a strong amplification of the antimicrobial action of vancomycin (VCM) encapsulated in shellac nanoparticles (NPs) with dual surface functionalisation. These shellac nanocarriers for VCM were produced in two steps: (i) a pH drop from aqueou... Read More about Boosting the antimicrobial action of vancomycin formulated in shellac nanoparticles of dual-surface functionality.

Alkyl substituted 4-pyrrolidinopyridinium salts encapsulated in the cavity of cucurbit[10]uril (2019)
Journal Article
Xu, W., Liu, M., Escaño, M. C., Redshaw, C., Bian, B., Fan, Y., Tao, Z., & Xiao, X. (in press). Alkyl substituted 4-pyrrolidinopyridinium salts encapsulated in the cavity of cucurbit[10]uril. New journal of chemistry = Nouveau journal de chimie, 43(18), 7028-7034. https://doi.org/10.1039/c9nj01089k

The interaction between cucuribit[10]uril (Q[10]) and a series of 4-pyrrolidinopyridinium salts bearing aliphatic substituents at the pyridinium nitrogen, namely 4-(C4H8N)C5H5NRBr, where R = Et (g1), n-butyl (g2), n-pentyl (g3), n-hexyl (g4), n-octyl... Read More about Alkyl substituted 4-pyrrolidinopyridinium salts encapsulated in the cavity of cucurbit[10]uril.

Synthesis, structures and Lewis‐Acid‐Induced isomerization of 8‐Methoxy[2.2]metaparacyclophanes and a DFT study (2019)
Journal Article
Islam, M. M., Feng, X., Rahman, S., Georghiou, P. E., Matsumoto, T., Tanaka, J., Alodhayb, A., Redshaw, C., & Yamato, T. (2019). Synthesis, structures and Lewis‐Acid‐Induced isomerization of 8‐Methoxy[2.2]metaparacyclophanes and a DFT study. ChemistrySelect, 4(13), 3630-3635. https://doi.org/10.1002/slct.201900190

Methyl substituted 8‐methoxy[2.2]MPCPs 8 a–b were obtained via thiacyclophane and its oxidized products. Lewis acid‐catalyzed (AlCl3‐MeNO2) reactions of 5‐tert‐butyl‐8‐methoxy‐12,13,15,16‐tetramethyl[2.2]MPCP 8 b under various conditions led to trans... Read More about Synthesis, structures and Lewis‐Acid‐Induced isomerization of 8‐Methoxy[2.2]metaparacyclophanes and a DFT study.

Two-step numerical approach to predict ferrofluid droplet generation and manipulation inside multilaminar flow chambers (2019)
Journal Article
Gómez-Pastora, J., Amiri Roodan, V., Karampelas, I. H., Alorabi, A. Q., Tarn, M. D., Iles, A., Bringas, E., Paunov, V. N., Pamme, N., Furlani, E. P., & Ortiz, I. (2019). Two-step numerical approach to predict ferrofluid droplet generation and manipulation inside multilaminar flow chambers. Journal of physical chemistry. C, 123(15), 10065-10080. https://doi.org/10.1021/acs.jpcc.9b01393

Copyright © 2019 American Chemical Society. In this study, a computational fluid dynamics approach is implemented to investigate the dynamic behavior of continuous-flow droplet microfluidics. The developed approach predicts both droplet generation an... Read More about Two-step numerical approach to predict ferrofluid droplet generation and manipulation inside multilaminar flow chambers.

Hierarchically structured composites and porous materials from soft templates: fabrication and applications (2019)
Journal Article
Thompson, B. R., Horozov, T. S., Stoyanov, S. D., & Paunov, V. N. (in press). Hierarchically structured composites and porous materials from soft templates: fabrication and applications. Journal of Materials Chemistry A, 7(14), 8030-8049. https://doi.org/10.1039/c8ta09750j

Recent experimental methods for fabrication of hierarchically porous and structured composites are reviewed. The main focus is on recent examples of how different soft templating materials, like emulsions, surfactant phases, breath figures, biologica... Read More about Hierarchically structured composites and porous materials from soft templates: fabrication and applications.

Pyrene-based aggregation-induced emission luminogens and their applications (2019)
Journal Article
Islam, M. M., Hu, Z., Wang, Q., Redshaw, C., & Feng, X. (2019). Pyrene-based aggregation-induced emission luminogens and their applications. Materials Chemistry Frontiers, 3(5), 762-781. https://doi.org/10.1039/c9qm00090a

"Unity is force"-Aesop. It is a common phenomenon that traditional chromophores exhibit high fluorescence in dilute solutions, yet luminescence is quenched at high concentrations or in the aggregate state, i.e. "aggregation-caused quenching" (ACQ). T... Read More about Pyrene-based aggregation-induced emission luminogens and their applications.

Strongly Enhanced Antibacterial Action of Copper Oxide Nanoparticles with Boronic Acid Surface Functionality (2019)
Journal Article
Halbus, A. F., Horozov, T. S., & Paunov, V. N. (2019). Strongly Enhanced Antibacterial Action of Copper Oxide Nanoparticles with Boronic Acid Surface Functionality. ACS Applied Materials & Interfaces, 11(13), 12232-12243. https://doi.org/10.1021/acsami.8b21862

Copper oxide nanoparticles (CuONPs) have been widely recognized as good antimicrobial agents but are heavily regulated due to environmental concerns of their postuse. In this work, we have developed and tested a novel type of formulation for copper o... Read More about Strongly Enhanced Antibacterial Action of Copper Oxide Nanoparticles with Boronic Acid Surface Functionality.