{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T05:04:13Z","timestamp":1787029453634,"version":"build-2736575974"},"reference-count":81,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2026,6,14]],"date-time":"2026-06-14T00:00:00Z","timestamp":1781395200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100017170","name":"Thailand Science Research and Innovation","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100017170","id-type":"DOI","asserted-by":"crossref"}]},{"id":[{"id":"https:\/\/ror.org\/000025p04","id-type":"ROR","asserted-by":"publisher"}]},{"name":"The Center of Excellence for Innovation in Chemistry (PERCH-CIC), Office of the Higher Education Commission, Ministry of Education, Thailand"},{"id":[{"id":"https:\/\/ror.org\/05m5t2b63","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>In this work, we extracted silk fibroin (SF) via a tertiary solvent system (CaCl2:Ethanol:H2O) and then blended it with chitosan (CS) solution to construct microparticles using the water-in-oil-emulsion\u2013diffusion method. For the mixture of SF\/CS solution aqueous phase (W) was prepared at ratios of 4:0, 3:1, 1:1, 1:3, and 0:4, using ethyl acetate as the oil phase (O). After the microparticles were prepared, their morphology was examined using scanning electron microscopy (SEM). The optimal preparation conditions were determined to be a 1% (w\/v) aqueous phase with a volume of 1 milliliter, 100 milliliters of oil phase, and a stirring speed of 700 rpm. The average microparticle size was 50\u2013100 micrometers. ATR\u2212FTIR spectra showed unique functional groups of SF and CS, as well as interactions between the two polymers. The results of the thermal property study using a TGA instrument showed that SF microparticles had a higher maximum decomposition temperature (Td,max) than chitosan, and the blended microparticles\u2019 Td,max increased with the proportion of SF. Most microparticles exhibited a semi-crystalline polymer structure, with SF microparticles being the most hydrophobic, followed by blended microparticles and CS, respectively. Testing for absorption capacity, the SF microparticles were more effective at absorbing used engine oil than vegetable oil and chloroform, while CS microparticles showed the highest capacity for vegetable oil. The experimental results indicated that all SF\/CS blended particles played an efficiency of absorption variable by ratios of SF or CS blended. This suggested that the prepared microparticles might be useful for oil\/water separation application.<\/jats:p>","DOI":"10.3390\/polym18121496","type":"journal-article","created":{"date-parts":[[2026,6,15]],"date-time":"2026-06-15T00:44:58Z","timestamp":1781484298000},"page":"1496","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Silk Fibroin\/Chitosan Blended Microparticles: Preparation, Characterization, and Oil Absorption"],"prefix":"10.3390","volume":"18","author":[{"given":"Ansaya","family":"Thonpho","sequence":"first","affiliation":[{"name":"Biodegradable Polymers Research Unit, Department of Chemistry and Centre of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Mahasarakham 44150, Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Suchai","family":"Tanisood","sequence":"additional","affiliation":[{"name":"Biodegradable Polymers Research Unit, Department of Chemistry and Centre of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Mahasarakham 44150, Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1300-1796","authenticated-orcid":false,"given":"Wilaiwan","family":"Simchuer","sequence":"additional","affiliation":[{"name":"Faculty of Science and Technology, Loei Rajabhat University, Mueang District, Loei 42000, Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8432-8721","authenticated-orcid":false,"given":"Yodthong","family":"Baimark","sequence":"additional","affiliation":[{"name":"Biodegradable Polymers Research Unit, Department of Chemistry and Centre of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Mahasarakham 44150, Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4098-7148","authenticated-orcid":false,"given":"Prasong","family":"Srihanam","sequence":"additional","affiliation":[{"name":"Biodegradable Polymers Research Unit, Department of Chemistry and Centre of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Mahasarakham 44150, Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,6,14]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"19933","DOI":"10.1021\/am505414y","article-title":"Hydrophobic Modification on Surface of Chitin Sponges for Highly Effective Separation of Oil","volume":"6","author":"Duan","year":"2014","journal-title":"ACS Appl. 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