Carbon dots as a new fluorescent nanomaterial with switchable sensing potential and its sustainable deployment for metal sensing applications

2021 ◽  
pp. 131372
Author(s):  
Reyna Berenice González-González ◽  
Roberto Parra-Saldívar ◽  
Ricardo A. Ramirez-Mendoza ◽  
Hafiz M.N. Iqbal
Keyword(s):  
Carbon Dots ◽  
Sensing Applications ◽  
Metal Sensing

Carbon dots from an immunomodulatory plant for cancer cell imaging, free radical scavenging and metal sensing applications

Nanomedicine ◽  
2021 ◽  
Vol 16 (23) ◽  
pp. 2039-2059
Author(s):  
Debadatta Mohapatra ◽  
Md. Bayazeed Alam ◽  
Vivek Pandey ◽  
Ravi Pratap ◽  
Pawan K Dubey ◽  
...  
Keyword(s):  
Free Radical ◽  
Cancer Cell ◽  
Carbon Dots ◽  
Cell Imaging ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Tinospora Cordifolia ◽  
Cancer Cell Imaging ◽  
Sensing Applications ◽  
Metal Sensing

Aim: This work aimed to develop Tinospora cordifolia stem-derived carbon dots (TCSCD) for cancer cell imaging, free radical scavenging and metal sensing applications. Method: The TCSCDs were synthesized by a simple, one-step, and ecofriendly hydrothermal carbonization method and characterized for their optical properties, morphology, hydrodynamic size, surface functionality, crystallinity, stability, bacterial biocompatibility, in vitro cellular imaging, free radical scavenging and metal sensing ability. Results: The TCSCDs exhibited excellent biocompatibility with dose-dependent bioimaging results in melanoma (B16F10) and cervical cancer (SiHa) cell lines. They exerted good free radical scavenging, Fe3+ sensing, bacterial biocompatibility, photostability, colloidal dispersion stability and thermal stability. Conclusion: The results reflect the potential of TCSCDs for biomedical and pharmaceutical applications.

scholarly journals Recent advances of biomass carbon dots on syntheses, characterization, luminescence mechanism, and sensing applications

Nano Select ◽  
2021 ◽  
Author(s):  
Ying Lou ◽  
Xinyu Hao ◽  
Lei Liao ◽  
Kaiyou Zhang ◽  
Shuoping Chen ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Biomass Carbon ◽  
Sensing Applications ◽  
Recent Advances

Carbon dots isolated from chromatographic fractions for sensing applications

RSC Advances ◽  
2015 ◽  
Vol 5 (129) ◽  
pp. 106838-106847 ◽  
Author(s):  
Lizhen Liu ◽  
Feng Feng ◽  
Man Chin Paau ◽  
Qin Hu ◽  
Yang Liu ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Fluorescent Probes ◽  
Carbon Dots ◽  
Sensitive Detection ◽  
Sensing Applications

An as-synthesised C-dots sample derived from acetic acid, NAC and P2O5 can be separated and fractionated into various C-dots species by HPLC. The brighter C-dots fractions can be used as fluorescent probes for sensitive detection of Fe3+ and Hg2+.

Multifunctional sensing applications of biocompatible N-doped carbon dots as pH and Fe3+ sensors

2019 ◽  
Vol 149 ◽  
pp. 103981 ◽  
Author(s):  
Xu Chen ◽  
Jianliang Bai ◽  
Yusha Ma ◽  
Guojun Yuan ◽  
Jing Mei ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Sensing Applications ◽  
Doped Carbon Dots

Carbon dots: synthesis, formation mechanism, fluorescence origin and sensing applications

2019 ◽  
Vol 21 (3) ◽  
pp. 449-471 ◽  
Author(s):  
Meng Li Liu ◽  
Bin Bin Chen ◽  
Chun Mei Li ◽  
Cheng Zhi Huang
Keyword(s):  
Green Chemistry ◽  
Green Synthesis ◽  
Formation Mechanism ◽  
Carbon Dots ◽  
Recent Progress ◽  
Fluorescence Sensing ◽  
Sensing Applications

We systematically summarize the recent progress in the green synthesis and formation mechanism of CDs with the hope to provide guidance for developing CDs with the concept of green chemistry. In addition, we discuss and organize the current opinions on the fluorescence origin of CDs and the latest progress of CDs in fluorescence sensing applications.

scholarly journals Eco-Friendly Sustainable Fluorescent Carbon Dots for the Adsorption of Heavy Metal Ions in Aqueous Environment

Nanomaterials ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 315 ◽  
Author(s):  
Musa Yahaya Pudza ◽  
Zurina Zainal Abidin ◽  
Suraya Abdul Rashid ◽  
Faizah Md Yasin ◽  
A. S. M. Noor ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Carbon Dots ◽  
Heavy Metal Ions ◽  
Active Sites ◽  
Adsorption Process ◽  
Coefficient Of Determination ◽  
Aqueous Environment ◽  
Order Kinetic ◽  
Sensing Applications

The materials and substances required for sustainable water treatment by adsorption technique, are still being researched widely by distinguished classes of researchers. Thus, the need to synthesize substances that can effectively clean up pollutants from the environment cannot be overemphasized. So far, materials in bulk forms that are rich in carbon, such as biochar and varieties of activated carbon have been used for various adsorptive purposes. The use of bulk materials for such purposes are not efficient due to minimal surface areas available for adsorption. This study explores the adsorption task at nano dimension using carbon dots (CDs) from tapioca. The properties of carbon structure and its influence on the adsorptive efficacy of carbon nanoparticles were investigated by energy-dispersive spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), high resolution transmission electron microscopy (HrTEM), and atomic force microscopy (AFM). The results implied carbon present in CDs are good adsorbents for effective adsorption of heavy metal ions (lead) with removal efficiency of 80.6% in aqueous environment. The adsorption process as explored by both Langmuir and Freundlich isotherms have proven favorability of the adsorption process. Langmuir form two and three have correlation coefficients R2 at 0.9922 and 0.9912, respectively. The Freundlich isotherm confirms CDs as having defined surface heterogeneity and the exponential distribution of active sites. The adsorption of lead unto CDs obeyed the second order kinetic model with coefficient of determination, R2 of 0.9668 and 0.9996 at an initial lead concentration of 20 mg/L and 100 mg/L, respectively. The findings validated the efficiency of CDs derived from tapioca as an excellent material for further utilization in the environmental fields of wastewater pollution detection and clean up, bio-imaging, and chemical sensing applications.

Ultrafast synthesis of nitrogen-doped carbon dots via neutralization heat for bioimaging and sensing applications

RSC Advances ◽  
2014 ◽  
Vol 4 (84) ◽  
pp. 44504-44508 ◽  
Author(s):  
Xiao-Mi Wei ◽  
Yang Xu ◽  
Yu-Hao Li ◽  
Xue-Bo Yin ◽  
Xi-Wen He
Keyword(s):  
Boronic Acid ◽  
Carbon Dots ◽  
Zebrafish Embryo ◽  
Hydroxyl Groups ◽  
Nitrogen Doped ◽  
Sensing Applications ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

Ultrafast synthesis (within 2 min) of nitrogen-doped carbon dots was achieved using neutralization heat with glucose as a precursor. The hydroxyl groups on the dots' surface make them easy to conjugate with boronic acid. The dots were used for zebrafish embryo imaging and ovalbumin sensing.

scholarly journals Metal sensing-carbon dots loaded TiO2-nanocomposite for photocatalytic bacterial deactivation and application in aquaculture

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Rajaiah Alexpandi ◽  
Chandu V. V. Muralee Gopi ◽  
Ravindran Durgadevi ◽  
Hee-Je Kim ◽  
Shunmugiah Karutha Pandian ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Metal Sensing
Sign in / Sign up

Export Citation Format

Share Document