{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,20]],"date-time":"2026-02-20T23:55:43Z","timestamp":1771631743803,"version":"3.50.1"},"reference-count":20,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2019,2,14]],"date-time":"2019-02-14T00:00:00Z","timestamp":1550102400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003141","name":"Consejo Nacional de Ciencia y Tecnolog\u00eda","doi-asserted-by":"publisher","award":["CB-2011-01-169626"],"award-info":[{"award-number":["CB-2011-01-169626"]}],"id":[{"id":"10.13039\/501100003141","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003141","name":"Consejo Nacional de Ciencia y Tecnolog\u00eda","doi-asserted-by":"publisher","award":["DC2014-318"],"award-info":[{"award-number":["DC2014-318"]}],"id":[{"id":"10.13039\/501100003141","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>The procedures to obtain two types of acemannan (AC) physical gels and their respective aerogels are reported. The gelation was induced by the diffusion of an alkali or a non-solvent, then supercritical CO2 drying technology was used to remove the solvent out and generate the AC aerogels. Fourier-transform infrared spectroscopic analysis indicated that alkali diffusion produced extensive AC deacetylation. Conversely, the non-solvent treatment did not affect the chemical structure of AC. Both types of gels showed syneresis and the drying process induced further volume reduction. Both aerogels were mesoporous nanostructured materials with pore sizes up to 6.4 nm and specific surface areas over 370 m2\/g. The AC physical gels and aerogels enable numerous possibilities of applications, joining the unique features of these materials with the functional and bioactive properties of the AC.<\/jats:p>","DOI":"10.3390\/polym11020330","type":"journal-article","created":{"date-parts":[[2019,2,14]],"date-time":"2019-02-14T11:54:13Z","timestamp":1550145253000},"page":"330","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Acemannan Gels and Aerogels"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5406-8674","authenticated-orcid":false,"given":"Daniel Alonso","family":"Miramon-Ort\u00edz","sequence":"first","affiliation":[{"name":"Centro de Investigaci\u00f3n en Alimentaci\u00f3n y Desarrollo A.C., Biopol\u00edmeros-CTAOA, Hermosillo 83304, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8356-1123","authenticated-orcid":false,"given":"Waldo","family":"Arg\u00fcelles-Monal","sequence":"additional","affiliation":[{"name":"Centro de Investigaci\u00f3n en Alimentaci\u00f3n y Desarrollo A.C., Biopol\u00edmeros-CTAOA, Hermosillo 83304, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4390-7457","authenticated-orcid":false,"given":"Elizabeth","family":"Carvajal-Millan","sequence":"additional","affiliation":[{"name":"Centro de Investigaci\u00f3n en Alimentaci\u00f3n y Desarrollo A.C., Biopol\u00edmeros-CTAOA, Hermosillo 83304, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3934-4578","authenticated-orcid":false,"given":"Yolanda Leticia","family":"L\u00f3pez-Franco","sequence":"additional","affiliation":[{"name":"Centro de Investigaci\u00f3n en Alimentaci\u00f3n y Desarrollo A.C., Biopol\u00edmeros-CTAOA, Hermosillo 83304, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7949-5429","authenticated-orcid":false,"given":"Francisco M.","family":"Goycoolea","sequence":"additional","affiliation":[{"name":"School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4636-4371","authenticated-orcid":false,"given":"Jaime","family":"Lizardi-Mendoza","sequence":"additional","affiliation":[{"name":"Centro de Investigaci\u00f3n en Alimentaci\u00f3n y Desarrollo A.C., Biopol\u00edmeros-CTAOA, Hermosillo 83304, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2019,2,14]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"72","DOI":"10.1080\/09540105.2015.1079594","article-title":"Immunomodulatory potential of acemannan (polysaccharide from Aloe vera) against radiation induced mortality in Swiss albino mice","volume":"27","author":"Kumar","year":"2016","journal-title":"Food Agric. Immunol."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"581","DOI":"10.1016\/j.carbpol.2013.06.022","article-title":"Effect of crosslinking in chitosan\/aloe vera-based membranes for biomedical applications","volume":"98","author":"Silva","year":"2013","journal-title":"Carbohydr. Polym."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"264","DOI":"10.1016\/j.carbpol.2014.05.042","article-title":"Bio-inspired Aloe vera sponges for biomedical applications","volume":"112","author":"Silva","year":"2014","journal-title":"Carbohydr. Polym."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"19","DOI":"10.1016\/S0939-6411(03)00161-9","article-title":"Structure and interactions in covalently and ionically crosslinked chitosan hydrogels for biomedical applications","volume":"57","author":"Berger","year":"2004","journal-title":"Eur. J. Pharm. Biopharm."},{"key":"ref_5","unstructured":"Zhang, C. (2008). Interplay between long-range and short-range interactions in polymer self-assembly and cell adhesion. [Ph.D. Thesis, California Institute of Technology]."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"1425","DOI":"10.1016\/j.carbpol.2011.06.066","article-title":"Polysaccharide-based aerogels - Promising biodegradable carriers for drug delivery systems","volume":"86","author":"Alnaief","year":"2011","journal-title":"Carbohydr. Polym."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"2472","DOI":"10.1016\/j.jnoncrysol.2009.08.038","article-title":"Polysaccharide-based aerogels as drug carriers","volume":"355","author":"Mehling","year":"2009","journal-title":"J. Non-Cryst. Solids"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"179","DOI":"10.1016\/j.matlet.2016.07.081","article-title":"Fabrication and characterization of nano-cellulose aerogels via supercritical CO2 drying technology","volume":"183","author":"Wang","year":"2016","journal-title":"Mater. Lett."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"511","DOI":"10.1016\/j.carbpol.2013.01.020","article-title":"NMR and rheological study of Aloe barbadensis partially acetylated glucomannan","volume":"94","author":"Campestrini","year":"2013","journal-title":"Carbohydr. Polym."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"9","DOI":"10.1016\/j.jcs.2010.06.014","article-title":"Potential of dry fractionation of wheat bran for the development of food ingredients, part II: Electrostatic separation of particles","volume":"53","author":"Hemery","year":"2011","journal-title":"J. Cereal Sci."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"707","DOI":"10.1016\/j.carbpol.2014.07.064","article-title":"Physical properties and antibacterial activity of chitosan\/acemannan mixed systems","volume":"115","author":"Domard","year":"2015","journal-title":"Carbohydr. Polym."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"653","DOI":"10.1021\/bm049593m","article-title":"Rheometric Study of the Gelation of Chitosan in Aqueous Solution without Cross-Linking Agent","volume":"6","author":"Montembault","year":"2005","journal-title":"Biomacromolecules"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"1745","DOI":"10.1016\/j.intimp.2004.07.006","article-title":"Isolation and characterization of structural components of Aloe vera L. leaf pulp","volume":"4","author":"Ni","year":"2004","journal-title":"Int. Immunopharmacol."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"556","DOI":"10.1016\/j.carbpol.2015.07.039","article-title":"Deacetylation affects the physical properties and bioactivity of acemannan, an extracted polysaccharide from Aloe vera","volume":"133","author":"Chokboribal","year":"2015","journal-title":"Carbohydr. Polym."},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Reynolds, T. (2004). Aloe polysaccharides. Aloes: the genus Aloe, CRC Press.","DOI":"10.1201\/9780203476345"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"387","DOI":"10.1016\/0008-6215(90)84312-I","article-title":"Isolation and structure analysis of a glucomannan from the leaves of Arborescens var. Miller","volume":"198","author":"Wozniewski","year":"1990","journal-title":"Carbohydr. Res."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"109","DOI":"10.1016\/S0144-8617(98)00163-5","article-title":"Compositional features of polysaccharides from Aloe vera (Aloe barbadensis Miller) plant tissues","volume":"39","author":"Femenia","year":"1999","journal-title":"Carbohydr. Polym."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"1727","DOI":"10.1016\/j.intimp.2004.07.004","article-title":"Evaluation and comparison of commercially available Aloe vera L. products using size exclusion chromatography with refractive index and multi-angle laser light scattering detection","volume":"4","author":"Turner","year":"2004","journal-title":"Int. Immunopharmacol."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"1633","DOI":"10.1016\/j.biomaterials.2004.06.029","article-title":"Rheometric study of the gelation of chitosan in a hydroalcoholic medium","volume":"26","author":"Montembault","year":"2005","journal-title":"Biomaterials"},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"291","DOI":"10.3390\/gels1020291","article-title":"On the Road to Biopolymer Aerogels\u2014Dealing with the Solvent","volume":"1","author":"Subrahmanyam","year":"2015","journal-title":"Gels"}],"container-title":["Polymers"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2073-4360\/11\/2\/330\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T12:32:06Z","timestamp":1760185926000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2073-4360\/11\/2\/330"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,2,14]]},"references-count":20,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2019,2]]}},"alternative-id":["polym11020330"],"URL":"https:\/\/doi.org\/10.3390\/polym11020330","relation":{},"ISSN":["2073-4360"],"issn-type":[{"value":"2073-4360","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,2,14]]}}}