All Outputs (10)

Spore exines increase vitamin D clinical bioavailability by mucoadhesion and bile triggered release (2022)
Journal Article
Diego-Taboada, A., Sathyapalan, T., Courts, F., Lorch, M., Almutairi, F., Burke, B. P., …Mackenzie, G. (2022). Spore exines increase vitamin D clinical bioavailability by mucoadhesion and bile triggered release. Journal of controlled release : official journal of the Controlled Release Society, 350, 244-255. https://doi.org/10.1016/j.jconrel.2022.08.017

Sporopollenin exine capsules (SpECs) are microcapsules derived from the outer shells (exines) of plant spore and pollen grains. This work reports the first clinical study on healthy volunteers to show enhanced bioavailability of vitamin D encapsulate... Read More about Spore exines increase vitamin D clinical bioavailability by mucoadhesion and bile triggered release.

Sporopollenin exine capsules (SpECs) derived from Lycopodium clavatum provide practical antioxidant properties by retarding rancidification of an ω-3 oil (2020)
Journal Article
Thomasson, M. J., Diego-Taboada, A., Barrier, S., Martin-Guyout, J., Amedjou, E., Atkin, S. L., Queneau, Y., Boa, A. N., & Mackenzie, G. (2020). Sporopollenin exine capsules (SpECs) derived from Lycopodium clavatum provide practical antioxidant properties by retarding rancidification of an ω-3 oil. Industrial Crops and Products, 154, Article 112714. https://doi.org/10.1016/j.indcrop.2020.112714

In recent years the use of natural antioxidants in foodstuffs and personal care products has become increasingly important for consumers and therefore manufacturers. In this work, sporopollenin exine capsules (SpECs), extracted from spores of the com... Read More about Sporopollenin exine capsules (SpECs) derived from Lycopodium clavatum provide practical antioxidant properties by retarding rancidification of an ω-3 oil.

A natural solution to photoprotection and isolation of the potent polyene antibiotic, marinomycin A (2019)
Journal Article
Bailey, C. S., Zarins-Tutt, J. S., Agbo, M., Gao, H., Diego-Taboada, A., Gan, M., Hamed, R. B., Abraham, E. R., Mackenzie, G., Evans, P. A., & Goss, R. J. M. (2019). A natural solution to photoprotection and isolation of the potent polyene antibiotic, marinomycin A. Chemical science, 10(32), 7549-7553. https://doi.org/10.1039/c9sc01375j

The photoprotection and isolation of marinomycin A using sporopollenin exine capsules (SpECs) derived from the spores of the plant Lycopodium clavatum is described. The marinomycins have a particularly short half-life in natural light, which severely... Read More about A natural solution to photoprotection and isolation of the potent polyene antibiotic, marinomycin A.

Sulfonated sporopollenin as an efficient and recyclable heterogeneous catalyst for dehydration of D-xylose and xylan into furfural (2016)
Journal Article
Wang, Y., Len, T., Huang, Y., Diego Taboada, A., Boa, A. N., Ceballos, C., Delbecq, F., Mackenzie, G., & Len, C. (2017). Sulfonated sporopollenin as an efficient and recyclable heterogeneous catalyst for dehydration of D-xylose and xylan into furfural. ACS Sustainable Chemistry and Engineering, 5(1), 392-398. https://doi.org/10.1021/acssuschemeng.6b01780

The natural acidity of sporopollenin, the biopolymer coating the outer walls of pollen grains, was enhanced by the sulfonation of its surface. Modified sporopollenin displaying sulfonic acid groups has been prepared, characterized by elemental analys... Read More about Sulfonated sporopollenin as an efficient and recyclable heterogeneous catalyst for dehydration of D-xylose and xylan into furfural.

Sporopollenin, the least known yet toughest natural biopolymer (2015)
Journal Article
Mackenzie, G., Boa, A. N., Diego-Taboada, A., Atkin, S. L., & Sathyapalan, T. (2015). Sporopollenin, the least known yet toughest natural biopolymer. Frontiers in Materials, 2, 1-5. https://doi.org/10.3389/fmats.2015.00066

© 2015 Mackenzie, Boa, Diego-Taboada, Atkin and Sathyapalan. Sporopollenin is highly cross-linked polymer composed of carbon, hydrogen, and oxygen that is extraordinarily stable and has been found chemically intact in sedimentary rocks some 500 milli... Read More about Sporopollenin, the least known yet toughest natural biopolymer.

Sequestration of edible oil from emulsions using new single and double layered microcapsules from plant spores (2012)
Journal Article
Diego-Taboada, A., Cousson, P., Raynaud, E., Huang, Y., Lorch, M., Binks, B., Queneau, Y., Boa, A. N., Atkin, S. L., Beckett, S. T., & Mackenzie, G. (2012). Sequestration of edible oil from emulsions using new single and double layered microcapsules from plant spores. Journal of Materials Chemistry, 22(19), 9767-9773. https://doi.org/10.1039/c2jm00103a

Microcapsules were obtained conveniently from Lycopodium clavatum spores possessing either a single layered shell of sporopollenin (exine) or double layered shell of sporopollenin and cellulose with an inner layer (intine). These microcapsules were f... Read More about Sequestration of edible oil from emulsions using new single and double layered microcapsules from plant spores.

Viability of plant spore exine capsules for microencapsulation (2010)
Journal Article
Barrier, S., Diego-Taboada, A., Thomasson, M. J., Madden, L., Pointon, J. C., Wadhawan, J. D., Beckett, S. T., Atkin, S. L., & Mackenzie, G. (2011). Viability of plant spore exine capsules for microencapsulation. Journal of Materials Chemistry, 21(4), 975-981. https://doi.org/10.1039/c0jm02246b

Sporopollenin exine capsules (SECs) (outer exoskeletal wall of the spores of Lycopodium clavatum) were extracted and examined for their potential use as microcapsules. They were shown, by laser scanning confocal microscopy (LSCM), to be void of their... Read More about Viability of plant spore exine capsules for microencapsulation.

Electrochemistry and charge transport in sporopollenin particle arrays (2010)
Journal Article
Thomasson, M. J., Baldwin, D. J., Diego-Taboada, A., Atkin, S. L., Mackenzie, G., & Wadhawan, J. D. (2010). Electrochemistry and charge transport in sporopollenin particle arrays. Electrochemistry communications, 12(10), 1428-1431. https://doi.org/10.1016/j.elecom.2010.07.038

Electrochemical oxidation of hollow sporopollenin particles immobilised on an electrode surface is investigated in aqueous acidic solution. Redox activity is demonstrated to occur via a mixture of 2e(-)-2H(+) and 2e(-)-1H(+) processes, likely due to... Read More about Electrochemistry and charge transport in sporopollenin particle arrays.

Enhanced bioavailability of eicosapentaenoic acid from fish oil after encapsulation within plant spore exines as microcapsules (2010)
Journal Article
Wakil, A., Mackenzie, G., Diego-Taboada, A., Bell, J. G., & Atkin, S. L. (2010). Enhanced bioavailability of eicosapentaenoic acid from fish oil after encapsulation within plant spore exines as microcapsules. Lipids, 45(7), 645-649. https://doi.org/10.1007/s11745-010-3427-y

Benefits of eicosapentaenoic acid (EPA) can be enhanced by raising their bioavailability through microencapsulation. Pollen can be emptied to form hollow shells, known as exines, and then used to encapsulate material, such as oils in a dry powder for... Read More about Enhanced bioavailability of eicosapentaenoic acid from fish oil after encapsulation within plant spore exines as microcapsules.

MRI contrast agent delivery using spore capsules: controlled release in blood plasma (2009)
Journal Article
Lorch, M., Thomasson, M. J., Diego-Taboada, A., Barrier, S., Atkin, S. L., Mackenzie, G., & Archibald, S. J. (2009). MRI contrast agent delivery using spore capsules: controlled release in blood plasma. Chemical communications : Chem comm / the Royal Society of Chemistry, 6442-6444. https://doi.org/10.1039/b909551a

The exine coatings of spores can be used to encapsulate drug molecules. We have demonstrated that these microcapsules can be filled with a commercial gadolinium(III) MRI contrast agent (in this proof of concept study Gd-DTPA-BMA was used) which is sl... Read More about MRI contrast agent delivery using spore capsules: controlled release in blood plasma.