Physicochemical and in vitro biocompatibility evaluation of water-soluble CdSe/ZnS core/shell.

Evaluasi fisikokimia dan biokompatibilitas *in vitro* CdSe/ZnS core/shell larut air.

Clicks: 434
ID: 686
2014
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Abstract
Group II-VI semiconductor quantum dots (Q-dots) have found various applications in biomedical field during last decade. In this study, we have synthesized CdSe Q-dots and CdSe/ZnS core/shell (CS) by wet chemical route and characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), dynamic light scattering (DLS), Fourier-transform infrared spectroscopy (FT-IR) and Photoluminescence (PL) spectroscopy. CS formation was confirmed by red shift as well as enhancement in the luminescence peak compared to bare Q-dots. Processing parameters such as core and sulfur concentrations were optimized at maximum luminescence efficiency during the shell preparation. Effects of dialysis, aging and cell culture medium on the properties of the Q-dots and CS were also studied by luminescence and DLS techniques. DLS data showed Q-dots and CS to be stable, and there was no effect on the integrity of the Q-dots and CS after various modifications. CS was found to be hemocompatible and cytocompatible for human umbilical vein endothelial cells even at a high concentration of 0.1 mg/ml up to 48 h indicating high potential for CS in various biomedical applications.
Titik kuantum (Q-dots) semikonduktor Golongan II-VI telah banyak diaplikasikan dalam bidang biomedis selama satu dekade terakhir. Dalam penelitian ini, kami telah mensintesis Q-dots CdSe dan inti/cangkang (core/shell/CS) CdSe/ZnS melalui rute kimia basah serta mengarakterisasinya menggunakan difraksi sinar-X (XRD), mikroskopi elektron transmisi (TEM), hamburan cahaya dinamis (DLS), spektroskopi inframerah transformasi Fourier (FT-IR), dan spektroskopi fotoluminesensi (PL). Pembentukan CS dikonfirmasi melalui pergeseran merah serta peningkatan puncak luminesensi dibandingkan dengan Q-dots tanpa cangkang. Parameter pemrosesan seperti konsentrasi inti dan sulfur dioptimalkan pada efisiensi luminesensi maksimum selama preparasi cangkang. Pengaruh dialisis, penuaan (aging), dan media kultur sel terhadap sifat-sifat Q-dots dan CS juga dipelajari menggunakan teknik luminesensi dan DLS. Data DLS menunjukkan bahwa Q-dots dan CS bersifat stabil, dan tidak terdapat pengaruh terhadap integritas Q-dots dan CS setelah berbagai modifikasi. CS terbukti bersifat hemokompatibel dan sitokompatibel terhadap sel endotel vena umbilikalis manusia bahkan pada konsentrasi tinggi sebesar 0,1 mg/ml hingga 48 jam, yang mengindikasikan potensi tinggi CS dalam berbagai aplikasi biomedis.
Reference Key
painuly2014physicochemical Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Painuly, Diksha;Bhatt, Anugya;Krishnan, Venkiteswaran Kalliyana;
Journal journal of biomaterials applications
Year 2014
DOI
10.1177/0885328213499194
URL
Keywords Keywords not found

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