國家衛生研究院 NHRI:Item 3990099045/7989
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/7989


    Title: Preparing, characterizing, and evaluating chitosan/fucoidan nanoparticles as oral delivery carriers
    Authors: Huang, YC;Chen, JK;Lam, UI;Chen, SY
    Contributors: Center for Nanomedicine Research
    Abstract: In designing an effective oral delivery system, the harshness of the gastrointestinal tract is a key limitation. Therefore, developing a pH-responsive carrier is crucial. We designed a chitosan/fucoidan nanoparticle (CS/F NP) and evaluated its potential as an oral delivery carrier. The results indicate that the CS/F NPs were successfully prepared based on their electrostatic interactions. They were approximately 380 nm, revealing significant pH-sensitive properties as the weight ratio of CS to F was 1:1. The isoelectric point of the CS/F NPs was 5.7. Using gamma scintigraphy, the 99mTc-methylene diphosphonate encapsulated CS/F NPs were quite stable at pH 2.5 and decomposed at pH 7.4. For long-term storage, trehalose (20 %, w/v) is a suitable cryoprotectant. The outcome of the transepithelial electric resistance (TEER) of the Caco-2 monolayer shows that CS/F NPs effectively enhanced the opening of the cell tight junction. Briefly, the CS/F NPs developed are promising carriers for an oral delivery system.
    Date: 2014-04
    Relation: Journal of Polymer Research. 2014 Apr;21:Article number 415.
    Link to: http://dx.doi.org/10.1007/s10965-014-0415-6
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1022-9760&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000334449000001
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84897358259
    Appears in Collections:[Jen-Kun Chen] Periodical Articles

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