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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. (2018). Hierarchically porous composites fabricated by hydrogel templating and viscous trapping techniques. Materials & design, 137, 384-393. https://doi.org/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 about Hierarchically porous composites fabricated by hydrogel templating and viscous trapping techniques.

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. https://doi.org/10.1039/c7lc00918f

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 about On-chip polyelectrolyte coating onto magnetic droplets – towards continuous flow assembly of drug delivery capsules.

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. https://doi.org/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 about Enhanced antimicrobial effect of berberine in nanogel carriers with cationic surface functionality.

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. https://doi.org/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 about An ultra melt-resistant hydrogel from food grade carbohydrates.

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. https://doi.org/10.1039/c7fo00867h

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 about Structuring and calorie control of bakery products by templating batter with ultra melt-resistant food-grade hydrogel beads.

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. https://doi.org/10.1039/c7cs00179g

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 about Cancer bioimprinting and cell shape recognition for diagnosis and targeted treatment.

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. https://doi.org/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 about Colloid particle formulations for antimicrobial applications.

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. https://doi.org/10.1039/c6sm01651k

© 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 about Preparation and attachment of liquid-infused porous supra-particles to liquid interfaces.

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. https://doi.org/10.1039/c6cp05453f

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 about Attachment of composite porous supra-particles to air–water and oil–water interfaces: theory and experiment.

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. https://doi.org/10.1021/acs.langmuir.6b01088

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 about Synthesis and characterization of biodegradable lignin nanoparticles with tunable surface properties.

Fabrication of living soft matter by symbiotic growth of unicellular microorganisms (2016)
Journal Article
Das, A. A. K., Bovill, J., Ayesh, M., Stoyanov, S. D., & Paunov, V. N. (2016). Fabrication of living soft matter by symbiotic growth of unicellular microorganisms. Journal of materials chemistry B, Materials for biology and medicine /, 4(21), 3685-3694. https://doi.org/10.1039/c5tb02489g

We report the fabrication of living soft matter made as a result of the symbiotic relationship of two unicellular microorganisms. The material is composed of bacterial cellulose produced in situ by acetobacter (Acetobacter aceti NCIMB 8132) in the pr... Read More about Fabrication of living soft matter by symbiotic growth of unicellular microorganisms.

Cell shape recognition by colloidal cell imprints: Energy of the cell-imprint interaction (2015)
Journal Article
Borovicka, J., Stoyanov, S. D., & Paunov, V. N. (2015). Cell shape recognition by colloidal cell imprints: Energy of the cell-imprint interaction. Physical review. E, Statistical, nonlinear, and soft matter physics, 92(3), 1-8. https://doi.org/10.1103/physreve.92.032730

The results presented in this study are aimed at the theoretical estimate of the interactions between a spherical microbial cell and the colloidal cell imprints in terms of the Derjaguin, Landau, Vervey, and Overbeek (DLVO) surface forces. We adapted... Read More about Cell shape recognition by colloidal cell imprints: Energy of the cell-imprint interaction.

Artificial leaf device for hydrogen generation from immobilised C. reinhardtii microalgae (2015)
Journal Article
Das, A. A. K., Esfahani, M. M. N., Velev, O. D., Pamme, N., & Paunov, V. N. (2015). Artificial leaf device for hydrogen generation from immobilised C. reinhardtii microalgae. Journal of materials chemistry. publ. by The Royal Society of Chemistry. A, Materials for energy and sustainability /, 3(41), 20698-20707. https://doi.org/10.1039/c5ta07112g

We developed a fully biomimetic leaf-like device for hydrogen production which allows incorporated fabric-immobilised microalgae culture to be simultaneously hydrated with media and harvested from the produced hydrogen in a continuous flow regime wit... Read More about Artificial leaf device for hydrogen generation from immobilised C. reinhardtii microalgae.

An environmentally benign antimicrobial nanoparticle based on a silver-infused lignin core (2015)
Journal Article
Richter, A. P., Brown, J. S., Bharti, B., Wang, A., Gangwal, S., Houck, K., …Velev, O. D. (2015). An environmentally benign antimicrobial nanoparticle based on a silver-infused lignin core. Nature nanotechnology, 10(9), 817-823. https://doi.org/10.1038/nnano.2015.141

Silver nanoparticles have antibacterial properties, but their use has been a cause for concern because they persist in the environment. Here, we show that lignin nanoparticles infused with silver ions and coated with a cationic polyelectrolyte layer... Read More about An environmentally benign antimicrobial nanoparticle based on a silver-infused lignin core.

Nanotoxicity of polyelectrolyte-functionalized titania nanoparticles towards microalgae and yeast: Role of the particle concentration, size and surface charge (2015)
Journal Article
Al-Awady, M. J., Greenway, G. M., & Paunov, V. N. (2015). Nanotoxicity of polyelectrolyte-functionalized titania nanoparticles towards microalgae and yeast: Role of the particle concentration, size and surface charge. RSC advances, 5(46), 37044-37059. https://doi.org/10.1039/c5ra05577f

We studied the nanotoxicity of titania nanoparticles (TiO₂NPs) of various hydrodynamic diameters and crystallite sizes towards C. reinhardtii microalgae and S. cerevisiae (yeast) upon illumination with UV and visible light. The cell viability was ass... Read More about Nanotoxicity of polyelectrolyte-functionalized titania nanoparticles towards microalgae and yeast: Role of the particle concentration, size and surface charge.

Sound absorption of porous cement composites: effects of the porosity and the pore size (2015)
Journal Article
Rutkevičius, M., Austin, Z., Chalk, B., Mehl, G. H., Qin, Q., Rubini, P. A., …Paunov, V. N. (2015). Sound absorption of porous cement composites: effects of the porosity and the pore size. Journal of materials science, 50(9), 3495-3503. https://doi.org/10.1007/s10853-015-8912-5

© 2015, Springer Science+Business Media New York. We prepared sound absorbing cement–hydrogel composites using a hydrogel slurry templating technique. We air-dried the wet cement composites containing a varying percentage and size of entrapped hydrog... Read More about Sound absorption of porous cement composites: effects of the porosity and the pore size.

Fabrication of salt–hydrogel marbles and hollow-shell microcapsules by an aerosol gelation technique (2014)
Journal Article
Rutkevičius, M., Mehl, G. H., Petkov, J. T., Stoyanov, S. D., & Paunov, V. N. (2015). Fabrication of salt–hydrogel marbles and hollow-shell microcapsules by an aerosol gelation technique. Journal of materials chemistry B, Materials for biology and medicine /, 3(1), 82-89. https://doi.org/10.1039/c4tb01443j

We designed a new method for preparation of liquid marbles by using hydrophilic particles. Salt–hydrogel marbles were prepared by atomising droplets of hydrogel solution in a cold air column followed by rolling of the collected hydrogel microbeads in... Read More about Fabrication of salt–hydrogel marbles and hollow-shell microcapsules by an aerosol gelation technique.

Artificial multicellular assemblies from cells interfaced with polymers and nanomaterials (2014)
Book Chapter
Das, A. A., Fakhrullin, R. F., & Paunov, V. N. (2014). Artificial multicellular assemblies from cells interfaced with polymers and nanomaterials. In R. Fakhrullin, I. Choi, & Y. Lvov (Eds.), Cell surface engineering: fabrication of functional nanoshells, 162-184. Royal Society of Chemistry. https://doi.org/10.1039/9781782628477-00162

In this chapter we review the recent developments in fabrication of multicellular assemblies from cells modified with polymers and nanomaterials. We focus on the specific properties of such “cyborg” cells that allow a variety of new methods to be use... Read More about Artificial multicellular assemblies from cells interfaced with polymers and nanomaterials.

Adsorption of carboxylic modified latex particles at liquid interfaces studied by the gel trapping technique (2014)
Journal Article
Al-Shehri, H., Horozov, T. S., & Paunov, V. N. (2014). Adsorption of carboxylic modified latex particles at liquid interfaces studied by the gel trapping technique. Soft matter, 10(34), 6433-6441. https://doi.org/10.1039/c4sm01030b

We have studied how carboxylic modified latex (CML) microparticles adsorb at liquid surfaces and the preferred type of emulsion they can stabilise depending on the particle size and the surface density of carboxylic groups. We measured the particle c... Read More about Adsorption of carboxylic modified latex particles at liquid interfaces studied by the gel trapping technique.

Formation and structure of calcium carbonate thin films and nanofibers precipitated in the presence of poly(allylamine hydrochloride) and magnesium ions (2013)
Journal Article
Paunov, V. N., Cantaert, B., Kim, Y. Y., Kröger, R., Ludwig, H., Meldrum, F. C., & Verch, A. (2013). Formation and structure of calcium carbonate thin films and nanofibers precipitated in the presence of poly(allylamine hydrochloride) and magnesium ions. Chemistry of materials : a publication of the American Chemical Society, 25(24), 4994-5003. https://doi.org/10.1021/cm403497g

That the cationic polyelectrolyte poly(allylamine hydrochloride) (PAH) exerts a significant influence on CaCO₃ precipitation challenges the idea that only anionic additives have this effect. Here, we show that in common with anionic polyelectrolytes... Read More about Formation and structure of calcium carbonate thin films and nanofibers precipitated in the presence of poly(allylamine hydrochloride) and magnesium ions.