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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. publ. by The Royal Society of Chemistry. A, Materials for energy and sustainability /, 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

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. (in press). Strongly Enhanced Antibacterial Action of Copper Oxide Nanoparticles with Boronic Acid Surface Functionality. ACS applied materials & interfaces, 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

Dual-functionalised shellac nanocarriers give a super-boost of the antimicrobial action of berberine (2018)
Journal Article
Al-Obaidy, S. S., Greenway, G. M., & Paunov, V. N. (in press). Dual-functionalised shellac nanocarriers give a super-boost of the antimicrobial action of berberine. Nanoscale advances, https://doi.org/10.1039/c8na00121a

We have developed highly efficient antimicrobial nanocarriers for berberine (BRB) based on shellac nanoparticles (NPs) which were surface-functionalised with a surface active polymer, Poloxamer 407 (P407), and the cationic surfactant octadecyltrimeth... Read More

Microcapsules as assay compartments formed through layer-by-layer deposition (2018)
Journal Article
Alorabi, A. Q., Tarn, M. D., Thomas, M., Paunov, V. N., & Pamme, N. (2018). Microcapsules as assay compartments formed through layer-by-layer deposition. Analytical Methods, 10(44), 5335-5340. doi:10.1039/c8ay02012d

We investigate the potential of using microcapsules, generated through layer-by-layer assembly, as reaction compartments for bioassays. A streptavidin-biotin and an esterase-fluorescein diacetate (FDA) assay were employed for proof-of-concept. Strept... Read More

Amplified antimicrobial action of chlorhexidine encapsulated in PDAC-functionalized acrylate copolymer nanogel carriers (2018)
Journal Article
Al-Awady, M. J., Weldrick, P. J., Hardman, M. J., Greenway, G. M., & Paunov, V. N. (2018). Amplified antimicrobial action of chlorhexidine encapsulated in PDAC-functionalized acrylate copolymer nanogel carriers. Materials Chemistry Frontiers, 2(11), 2032-2044. doi:10.1039/c8qm00343b

We have developed and tested a novel functionalised nanocarrier for chlorhexidine (CHX) which provides a very strong enhancement of its antimicrobial action. The nanocarrier was based on lightly-cross-linked acrylate copolymer nanogel particles loade... Read More

Smart soaps: stimulus responsive soap–hydrogel bead composites for controlled dissolution and release of actives (2018)
Journal Article
Thompson, B. R., Rutkevičius, M., Horozov, T. S., Stoyanov, S. D., & Paunov, V. N. (2018). Smart soaps: stimulus responsive soap–hydrogel bead composites for controlled dissolution and release of actives. Materials Chemistry Frontiers, 2(2), 402-409. doi:10.1039/c7qm00556c

We designed pressure responsive soap–hydrogel bead composites by incorporating agar hydrogel beads of different size distributions within a molten soap matrix at various volume fractions. Upon cooling, the combined suspension of hydrogel beads into t... Read More

Capillary structured suspensions from in situ hydrophobized calcium carbonate particles suspended in a polar liquid media (2017)
Journal Article
Das, A. A. K., Dunstan, T. S., Das, A. A., Starck, P., Stoyanov, S. D., & Paunov, V. N. (2018). Capillary structured suspensions from in situ hydrophobized calcium carbonate particles suspended in a polar liquid media. Langmuir : the ACS journal of surfaces and colloids, 34(1), (442-452). doi:10.1021/acs.langmuir.7b03589. ISSN 0743-7463

© 2017 American Chemical Society. We demonstrate that capillary suspensions can be formed from hydrophilic calcium carbonate particles suspended in a polar continuous media and connected by capillary bridges formed of minute amounts of an immiscible... Read More

Thermally responsive capillary suspensions (2017)
Journal Article
Das, A. A. K., Das, A. A., Dunstan, T. S., Stoyanov, S. D., Starck, P., & Paunov, V. N. (2017). Thermally responsive capillary suspensions. ACS applied materials & interfaces, 9(50), (44152-44160). doi:10.1021/acsami.7b11358. ISSN 1944-8244

© 2017 American Chemical Society. We demonstrate that stimulus-responsive capillary-structured materials can be formed from hydrophobized calcium carbonate particles suspended in a non-polar phase (silicone oil) and bridged by very small amounts of a... Read More

High throughput fabrication of cell spheroids by templating water-in-water Pickering emulsions (2017)
Journal Article
Das, A. A. K., Filby, B. W., Geddes, D. A., Legrande, D., & Paunov, V. N. (2017). High throughput fabrication of cell spheroids by templating water-in-water Pickering emulsions. Materials Horizons, 4(6), 1196-1200. doi:10.1039/c7mh00677b

© The Royal Society of Chemistry 2017. We report a simple technique for the high throughput generation of tissue spheroids based on the encapsulation of dispersed adherent cells in particle-stabilised water-in-water emulsions. We demonstrate cell enc... Read More

Sound transmission loss of hierarchically porous composites produced by hydrogel templating and viscous trapping techniques (2017)
Journal Article
Thompson, B. R., Taylor, B. L., Qin, Q., Stoyanov, S. D., Horozov, T. S., & Paunov, V. N. (2017). Sound transmission loss of hierarchically porous composites produced by hydrogel templating and viscous trapping techniques. Materials Chemistry Frontiers, 1(12), 2627-2637. doi:10.1039/c7qm00371d

© 2017 the Partner Organisations. We have developed two different methods for fabrication of hierarchically porous composites which are environmentally friendly, inexpensive and give a large amount of control over the composite microstructure. The hy... Read More

Hierarchically porous composites fabricated by hydrogel templating and viscous trapping techniques (2017)
Journal Article
Thompson, B. R., Horozov, T. S., Stoyanov, S. D., & Paunov, V. N. (2017). Hierarchically porous composites fabricated by hydrogel templating and viscous trapping techniques. Materials & design, 137, 384-393. doi:10.1016/j.matdes.2017.10.046

© 2017 Elsevier Ltd Two methods for the preparation of hierarchically porous composites have been developed and explored. The first involved templating mixed slurries of hydrogel beads with two different average bead size distributions with gypsum sl... Read More

On-chip polyelectrolyte coating onto magnetic droplets – towards continuous flow assembly of drug delivery capsules (2017)
Journal Article
Alorabi, A. Q., Tarn, M. D., Gómez-Pastora, J., Bringas, E., Ortiz, I., Paunov, V. N., & Pamme, N. (2017). On-chip polyelectrolyte coating onto magnetic droplets – towards continuous flow assembly of drug delivery capsules. Lab on a chip, 17(22), (3785-3795). doi:10.1039/c7lc00918f. ISSN 1473-0197

Polyelectrolyte (PE) microcapsules for drug delivery are typically fabricated via layer-by-layer (LbL) deposition of PE layers of alternating charge on sacrificial template microparticles, which usually requires multiple incubation and washing steps... Read More

Enhanced antimicrobial effect of berberine in nanogel carriers with cationic surface functionality (2017)
Journal Article
Al-Awady, M. J., Fauchet, A., Greenway, G. M., & Paunov, V. N. (2017). Enhanced antimicrobial effect of berberine in nanogel carriers with cationic surface functionality. Journal of materials chemistry B, Materials for biology and medicine /, 5(38), 7885-7897. doi:10.1039/c7tb02262j

We report a strong enhancement in the antimicrobial action of berberine encapsulated into polyacrylic acid-based nanogels followed by further surface functionalisation with a cationic polyelectrolyte (PDAC). Due to the highly developed surface area,... Read More

An ultra melt-resistant hydrogel from food grade carbohydrates (2017)
Journal Article
Thompson, B. R., Horozov, T. S., Stoyanov, S. D., & Paunov, V. N. (2017). An ultra melt-resistant hydrogel from food grade carbohydrates. RSC advances, 7(72), 45535-45544. doi:10.1039/c7ra08590g

© 2017 The Royal Society of Chemistry. We report a binary hydrogel system made from two food grade biopolymers, agar and methylcellulose (agar-MC), which does not require addition of salt for gelation to occur and has very unusual rheological and the... Read More

Structuring and calorie control of bakery products by templating batter with ultra melt-resistant food-grade hydrogel beads (2017)
Journal Article
Thompson, B. R., Horozov, T. S., Stoyanov, S. D., & Paunov, V. N. (2017). Structuring and calorie control of bakery products by templating batter with ultra melt-resistant food-grade hydrogel beads. Food and Function, 8(8), (2967-2973). doi:10.1039/c7fo00867h. ISSN 2042-6496

This journal is © The Royal Society of Chemistry. We report the use of a temperature insensitive, food-grade hydrogel to reduce the caloric density of pancakes that were prepared at temperatures much higher than the boiling point of water. This cheap... Read More

Cancer bioimprinting and cell shape recognition for diagnosis and targeted treatment (2017)
Journal Article
Medlock, J., Das, A. A. K., Madden, L. A., Allsup, D. J., & Paunov, V. N. (2017). Cancer bioimprinting and cell shape recognition for diagnosis and targeted treatment. Chemical Society Reviews, 46(16), (5110-5127). doi:10.1039/c7cs00179g. ISSN 0306-0012

Cancer incidence and mortality have both increased in the last decade and are predicted to continue to rise. Diagnosis and treatment of cancers are often hampered by the inability to specifically target neoplastic cells. Bioimprinting is a promising... Read More

Colloid particle formulations for antimicrobial applications (2017)
Journal Article
Halbus, A. F., Horozov, T. S., & Paunov, V. N. (2017). Colloid particle formulations for antimicrobial applications. Advances in Colloid and Interface Science, 249, 134-148. doi:10.1016/j.cis.2017.05.012

Colloidal particles are being extensively studied in various antimicrobial applications due to their small size to volume ratio and ability to exhibit a wide spectrum of antibacterial, antifungal, antialgal and antiviral action. The present review fo... Read More

Preparation and attachment of liquid-infused porous supra-particles to liquid interfaces (2016)
Journal Article
Al-Shehri, H., Horozov, T. S., & Paunov, V. N. (2016). Preparation and attachment of liquid-infused porous supra-particles to liquid interfaces. Soft matter, 12(40), (8375-8387). doi:10.1039/c6sm01651k. ISSN 1744-683X

© 2016 The Royal Society of Chemistry. We prepared model porous composite supra-particles and investigated the effect of the initial infused fluid phase on their attachment at the liquid-fluid interface. We used a simple method for fabrication of mil... Read More

Attachment of composite porous supra-particles to air–water and oil–water interfaces: theory and experiment (2016)
Journal Article
Paunov, V. N., Al-Shehri, H., & Horozov, T. S. (2016). Attachment of composite porous supra-particles to air–water and oil–water interfaces: theory and experiment. Physical chemistry chemical physics : PCCP, 18(38), (26495-26508). doi:10.1039/c6cp05453f. ISSN 1463-9076

We developed and tested a theoretical model for the attachment of fluid-infused porous supra-particles to a fluid–liquid interface. We considered the wetting behaviour of agglomerated clusters of particles, typical of powdered materials dispersed in... Read More

Synthesis and characterization of biodegradable lignin nanoparticles with tunable surface properties (2016)
Journal Article
Richter, A. P., Bharti, B., Armstrong, H. B., Brown, J. S., Plemmons, D., Paunov, V. N., …Velev, O. D. (2016). Synthesis and characterization of biodegradable lignin nanoparticles with tunable surface properties. Langmuir : the ACS journal of surfaces and colloids, 32(25), (6468-6477). doi:10.1021/acs.langmuir.6b01088. ISSN 0743-7463

Lignin nanoparticles can serve as biodegradable carriers of biocidal actives with minimal environmental footprint. Here we describe the colloidal synthesis and interfacial design of nanoparticles with tunable surface properties using two different li... Read More