Metal ions sensing using carbon nanodots from various sources

2020 ◽  
Vol 13 (04) ◽  
pp. 2040005
Author(s):  
Evgeny Karpushkin ◽  
Ekaterina Kharochkina ◽  
Vladimir Sergeyev ◽  
Marat Gallyamov
Keyword(s):  
Optical Properties ◽  
Hydrothermal Synthesis ◽  
Metal Ions ◽  
Precursor Concentration ◽  
Carbon Nanodots ◽  
Sensitivity And Selectivity

We have demonstrated that variation of the precursor concentration during hydrothermal synthesis of carbon nanodots is an efficient mean to tune the yield of the products keeping their optical properties the same. Moreover, we found that the nature of the precursor determined the sensitivity and selectivity of detection of metal ions in the solution via quenching the fluorescence.

X-ray photoemission studies of the interaction of metals and metal ions with DNA

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Esha Mishra ◽  
Subrata Majumder ◽  
Shikha Varma ◽  
Peter A. Dowben
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Conformational Changes ◽  
Photoelectron Spectroscopy ◽  
X Ray ◽  
Surface Sensitivity ◽  
Metal Interaction ◽  
The Status ◽  
Sensitivity And Selectivity ◽  
Insight Into

Abstract X-ray Photoelectron Spectroscopy (XPS) has been used to study the interactions of heavy metal ions with DNA with some success. Surface sensitivity and selectivity of XPS are advantageous for identifying and characterizing the chemical and elemental structure of the DNA to metal interaction. This review summarizes the status of what amounts to a large part of the photoemission investigations of biomolecule interactions with metals and offers insight into the mechanism for heavy metal-bio interface interactions. Specifically, it is seen that metal interaction with DNA results in conformational changes in the DNA structure.

scholarly journals Hydrothermal synthesis and investigation of optical properties of Nb5+-doped lithium silicate nanostructures

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Abdolali Alemi ◽  
Shahin Khademinia ◽  
Sang Woo Joo ◽  
Mahboubeh Dolatyari ◽  
Akbar Bakhtiari ◽  
...  
Keyword(s):  
Optical Properties ◽  
Hydrothermal Synthesis ◽  
Lithium Silicate

Microporous lanthanide metal-organic frameworks

2012 ◽  
Vol 32 (2-4) ◽  
pp. 81-100 ◽  
Author(s):  
Yao Chen ◽  
Shengqian Ma
Keyword(s):  
Optical Properties ◽  
Metal Ions ◽  
Porous Materials ◽  
Chemical Sensing ◽  
Metal Organic Frameworks ◽  
Current Status ◽  
Multifunctional Materials ◽  
Metal Organic ◽  
Lanthanide Metal ◽  
Solvent Adsorption

AbstractMicroporous metal-organic frameworks (MOFs) based on lanthanide metal ions or clusters represent a group of porous materials, featuring interesting coordination, electronic, and optical properties. These attractive properties in combination with the porosity make microporous lanthanide MOFs (Ln-MOFs) hold the promise for various applications. This review is to provide an overview of the current status of the research in microporous Ln-MOFs, and highlight their potential as types of multifunctional materials for applications in gas/solvent adsorption and separation, luminescence and chemical sensing and catalysis.

Hydrothermal synthesis of MgCO3 and its optical properties

2011 ◽  
Vol 509 (30) ◽  
pp. 7874-7876 ◽  
Author(s):  
Shibing Ni ◽  
Tao Li ◽  
Xuelin Yang
Keyword(s):  
Optical Properties ◽  
Hydrothermal Synthesis

scholarly journals ID: 1038 Hydrothermal synthesis of carbon nanodots from millets for cancer cells imaging

2017 ◽  
Vol 4 (S) ◽  
pp. 116
Author(s):  
Quang Ngo Khoa ◽  
Tran Thi Xuan Thuy ◽  
Che Thi Cam Ha
Keyword(s):  
Hydrothermal Synthesis ◽  
Cancer Cells ◽  
Biomedical Application ◽  
Average Diameter ◽  
Optical Measurements ◽  
Carbon Nanodots ◽  
Excitation Wavelength ◽  
Economical Method ◽  
Potential Applications ◽  
Multicolor Fluorescence

We presented a green, simple and economical method to synthesize carbon nanodots (C-dots) from millets using hydrothermal synthesis route. The obtained C-dots have average diameter ranging from 6 to 8 nm. Optical measurements showed the formation of hydroxyl, carbonyl/carboxyl, amino functional groups on the particle surfaces, resulting in their high hydrophilicity and bioconjugation. After treatment with C-dots, human cervical and lung cancer cells became bright and exhibited multicolor fluorescence under different excitation wavelength. The achievement demonstrated potential applications of fluorescent C-dots in the field of biomedical application, especially in diagnostic disease techniques.

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