Quantitative determination of raw and functionalized carbon nanotubes for the antibacterial studies

Journal of Materials Science - Tập 49 - Trang 4288-4296 - 2014
Rizwan Wahab1, Farheen Khan2, Mohd. Rashid2, Neha Kaushik3, Hyung-Shik Shin4
1College of Science, Department of Zoology, King Saud University, Riyadh, Saudi Arabia
2Department of Chemistry, Aligarh Muslim University, Aligarh, India
3Department of Plasma Biodisplay, Kwangwoon University, Seoul, South Korea
4Energy Materials and Surface Science Laboratory, Solar Energy Research Center, School of Chemical Engineering, Chonbuk National University, Jeonju, South Korea

Tóm tắt

The UV–visible spectrophotometric method has been described the study of raw carbon nanotubes (R-MWCNTs) and functionalized multiwall carbon nanotubes (F-MWCNTs) for the control of bacterial growth by using validated analytical techniques. The absorption spectra of functionalized carbon nanotubes (F-MWCNTs) and raw carbon nanotubes (R-MWCNTs) show maximum absorbance at λ max 600 nm. The linear relationship was found between absorbance and concentration of R-MWCNTs and F-MWCNTs in the range of 0.25–2.0 μg mL−1. The linear regression equation was evaluated by statistical treatment of calibration data and gives the value of correlation coefficient for F-MWCNTs (0.9999) and R-MWCNTs (0.9993), which indicate excellent linearity. The Optical and regression characteristics of the proposed method were found apparent molar absorptivity, limits of detection (LOD), and limit of quantitation (LOQ) for R-MWCNTs and F-MWCNTs (5.75 × 102: 8.25 × 102 L mol−1 cm−1), (0.052: 0.018 μg mL−1), and (0.055: 0.158 μg mL−1), respectively. The validity of the proposed method was checked by precision, accuracy, linearity, limits of detection (LOD), and limit of quantitation (LOQ). The RSD (%) and quantitative recoveries (%) were obtained (0.026–0.0086) and (100.34 and 100.71) for R-MWCNTs: for F-MWCNTs by UV–visible spectrophotometric, respectively.

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Thông tin xuất bản

Journal of Materials Science

Tập 49

4288-4296

Thông tin tác giả