{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,11]],"date-time":"2025-11-11T22:00:43Z","timestamp":1762898443439},"reference-count":62,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2009,3,4]],"date-time":"2009-03-04T00:00:00Z","timestamp":1236124800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Macromolecular Bioscience"],"published-print":{"date-parts":[[2009,6,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>New, biodegradable poly(<jats:sc>L<\/jats:sc>\u2010lactide) disulfides, PLLA\u2010SS\u2010PLLA, were first prepared through the DMAP\u2010catalyzed ring\u2010opening polymerization of <jats:sc>L<\/jats:sc>\u2010lactide with a dihydroxyethyl disulfide initiator, and were further catalytically reduced into thiol\u2010end\u2010functionalized poly(<jats:sc>L<\/jats:sc>\u2010lactide)s, HO\u2010PLLA\u2010SH, with a tributyl phosphine catalyst (PBu<jats:sub>3<\/jats:sub>). Employing the HO\u2010PLLA\u2010SH as the ligand, new core\u2010shell CdSe\/PLLA quantum dots (QDs) were continuously prepared via a facile ligand\u2010exchanging process with the CdSe\/TOPO QD precursor. The chemical structures, morphologies and solvent solubility of these prepared CdSe\/PLLA QDs were investigated by NMR spectroscopy, FTIR spectroscopy, XRD, TEM and excitation under either room light or UV radiation at 365 nm, demonstrating the successful ligand replacement and the new formation of core\u2010shell CdSe\/PLLA QDs (diameter:4.0\u2009\u00b1\u20090.3 nm). Finally, UV and FL results indicate the two factors of the HO\u2010PLLA\u2010SH ligand molecular weight and the ligand\/QD precursor feeding weight ratio were important for preparing stable and highly photoluminescent CdSe\/PLLA QDs.<\/jats:p><jats:p><jats:boxed-text content-type=\"graphic\" position=\"anchor\"><jats:graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" mimetype=\"image\/jpeg\" position=\"anchor\" specific-use=\"enlarged-web-image\" xlink:href=\"graphic\/mgra001.jpg\"><jats:alt-text>magnified image<\/jats:alt-text><\/jats:graphic><\/jats:boxed-text>\n<\/jats:p>","DOI":"10.1002\/mabi.200800312","type":"journal-article","created":{"date-parts":[[2009,3,4]],"date-time":"2009-03-04T13:59:18Z","timestamp":1236175158000},"page":"551-562","source":"Crossref","is-referenced-by-count":20,"title":["New Preparation of Structurally Symmetric, Biodegradable Poly(<scp>L<\/scp>\u2010lactide) Disulfides and PLLA\u2013Stabilized, Photoluminescent CdSe Quantum Dots"],"prefix":"10.1002","volume":"9","author":[{"given":"Xiaodong","family":"Hou","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qiaobo","family":"Li","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lin","family":"Jia","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yang","family":"Li","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yingdan","family":"Zhu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amin","family":"Cao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2009,6,2]]},"reference":[{"key":"e_1_2_6_1_2","doi-asserted-by":"publisher","DOI":"10.1126\/science.1069156"},{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevLett.95.163001"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1021\/jp074961c"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.mejo.2007.07.097"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.tibtech.2005.02.007"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja044031w"},{"key":"e_1_2_6_7_2","first-page":"808","volume":"47","author":"Wiesner U.","year":"2006","journal-title":"Polym. 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