메뉴 건너뛰기




Volumn , Issue 22, 2005, Pages 2829-2831

Calixarene-coated water-soluble CdSe-ZnS semiconductor quantum dots that are highly fluorescent and stable in aqueous solution

Author keywords

[No Author keywords available]

Indexed keywords

CADMIUM; CALIXARENE; CARBOXYLIC ACID; SELENIUM; ZINC SULFATE;

EID: 21344466960     PISSN: 13597345     EISSN: None     Source Type: Journal    
DOI: 10.1039/b503178h     Document Type: Article
Times cited : (62)

References (37)
  • 23
    • 21344452884 scopus 로고    scopus 로고
    • note
    • 6.
  • 26
    • 21344442027 scopus 로고    scopus 로고
    • note
    • 1 mg of the TOPO capped CdSe-ZnS QDs was dispersed in 1 mL of tetrahydrofuran and 30 mg of calix[4]arene carboxylic acids 1 was added. After the mixed solution was sonicated for 30 s using a bath type sonicator, 3 mL of dimethylformamide was added. Then, 30 mg of potassium tert-butoxide was slowly added for the deprotonation of the carboxylic groups of the calix[4]arene. The resulting precipitate consisting of the QDs coated by 1 was separated using a centrifuge. The sedimented precipitate was then dispersed in 20 mL water. The aqueous QD dispersion was sonicated for 5 min and filtered using a 0.2 μm disposal filter.
  • 27
    • 21344451961 scopus 로고    scopus 로고
    • note
    • The quantum yield of the 1-coated QDs with an emission peak at 535 nm is not estimated because the absorption of the QDs does not show a distinct peak.
  • 28
    • 21344453384 scopus 로고    scopus 로고
    • note
    • 2, where I(τ)is the fluorescence intensity at the time τ, and δI(τ) = I(τ) - 〈I(τ)〉. The brackets denote ensemble average.
  • 33
    • 21344449408 scopus 로고    scopus 로고
    • note
    • i are the radius and diffusion time of the fluorophore i.
  • 34
    • 21344468943 scopus 로고    scopus 로고
    • note
    • For the 1-coated QDs with emission peaks at 535 nm and 575 nm, the hydrodynamic size was determined to be 6.2 nm and 7.9 nm in diameter, respectively.
  • 36
    • 0003648954 scopus 로고    scopus 로고
    • Academic Press, New York
    • -1) was added. Then 10 μL of GFP antibody (5 μM) was added to the QDs aqueous solution and coupling reaction was allowed to proceed at room temperature. From the measurements of fluorescence autocorrelation curves of the QDs, it was found that the reaction was completed within 10 min. For the coupling reaction using EDC, see: G. T. Hermanson, Bioconjugate Techniques, Academic Press, New York, 1996.
    • (1996) Bioconjugate Techniques
    • Hermanson, G.T.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.