scholarly journals A Photochromic Sensor Microchip for High-performance Multiplex Metal Ions Detection

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Yu Huang ◽  
Fengyu Li ◽  
Changqing Ye ◽  
Meng Qin ◽  
Wei Ran ◽  
...  
Keyword(s):  
Metal Ions ◽  
High Performance ◽  
Metal Ions Detection

Selective Detection of Mercury Ions Based on Tin Oxide Quantum Dots: Performance and Fluorescence Enhancement Model

2021 ◽  
Author(s):  
Jianqiao Liu ◽  
Yu Bai ◽  
Jingcheng Shi ◽  
Qing Yu ◽  
Jifei Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Metal Ions ◽  
Tin Oxide ◽  
Fluorescent Probes ◽  
Fluorescence Enhancement ◽  
Selective Detection ◽  
Mercury Ions ◽  
Metal Ions Detection

The superiority of fluorescence-based method in the metal ions detection are well developed, however, the current quantum dots (QDs) fluorescent probes for mercury ions (Hg2+) still have many limitations, such...

scholarly journals Nanocelllulose Based Adsorbents for Heavy Metal Ions Removal

2021 ◽  
Author(s):  
Rongrong Si ◽  
Daiqi Wang ◽  
Yehong Chen ◽  
Dongmei Yu ◽  
Qijun Ding ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Ions ◽  
Metal Ion ◽  
Heavy Metal Ions ◽  
High Performance ◽  
Advanced Technologies ◽  
Good Biocompatibility ◽  
Heavy Metal Ions Removal ◽  
Metal Ions Removal

Abstract Heavy metal ion pollutions are of serious threat for our human health, and advanced technologies on removal of heavy metal ions in water or soil are in the focus of intensive research worldwide. Nanocellulose based adsorbents are emerging as an environmentally friendly appealing materials platform for heavy metal ions removal as nanocellulose has higher specific surface area, excellent mechanical properties and good biocompatibility. In this review, we briefly compare the differences of three kinds of nanocellulose and their preparation method. Then we cover the most recent work on nanocellulose based adsorbents for heavy metal ions removal, and present an in-depth discussion of the modification technologies for nanocellulose in assembling high performance heavy ions adsorbent process. By introducing functional groups, such as amino, carboxyl, phenolic hydroxyl, and thiol, the nanocellulose based adsorbents not only remove single heavy metal ions through ion exchange, chelation/complexation/coordination, electrostatic attraction, hydrophobic actions, binding affinity and redox reactions, but also can selectively adsorb multiple heavy ions in water. Finally, some challenges of nanocellulose based adsorbents for heavy metal ions are also prospected. We anticipate that the review supplies some guides for nanocellulose based adsorbents applied in heavy metal ions removal field.

Studies on the biofilm produced by Pseudomonas aeruginosa grown in different metal fatty acid salt media and its application in biodegradation of fatty acids and bioremediation of heavy metal ions

2017 ◽  
Vol 63 (1) ◽  
pp. 61-73 ◽  
Author(s):  
P. Abinaya Sindu ◽  
Pennathur Gautam
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Fatty Acid ◽  
Metal Ions ◽  
Metal Ion ◽  
High Performance ◽  
Toxic Metal ◽  
Industrial Effluents ◽  
Aquatic Organism ◽  
Fatty Acid Salt ◽  
Planktonic Form

Metal fatty acid salts (MFAS) in untreated industrial effluents cause environmental pollution. The use of biocompatible agents for remediation may help in reducing the harm caused to the ambient aquatic organism. Pseudomonas aeruginosa is a ubiquitous organism that thrives under harsh conditions and is resistant to toxic metal ions. The present study shows a proof-of-concept of using this organism in the biodegradation of MFAS. MFAS were prepared and we studied their effect on the growth of the planktonic form and the formation of biofilm by P. aeruginosa. We observed biofilm formation in the presence of all the MFAS when used as the sole carbon source, albeit the quantity of biofilm formed in the presence of cadmium and copper was less. There was no effect on the planktonic form of the organism but the formation of biofilm increased in the presence of magnesium palmitate. This study shows that metal ions play a pivotal role in the formation of biofilm. HPLC (high-performance liquid chromatography) analysis of the biofilm polysaccharide showed that hexose sugar was a major component when compared with pentose sugar. The structure of biofilm polysaccharide and the coordination of the metal ion with the biofilm polysaccharide were confirmed by FTIR (Fourier transform infrared spectroscopy) and Raman spectroscopy.

Nanofibrous-spherical cage mimicking a ball of pearl-necklaces for super capture of heavy metal ions

2021 ◽  
Author(s):  
Youngkyun Jung ◽  
Ung Su Choi ◽  
Young Gun Ko
Keyword(s):  
Heavy Metal ◽  
Adverse Effects ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
High Performance ◽  
Poor Response ◽  
Separation Technology ◽  
Long Term Adverse Effects

The late and poor response in the initial stages of big heavy metal leakage accidents cause long-term adverse effects on nature and humans. Fast and high-performance separation technology with low...

Chitosan/PAA based fiber-optic interferometric sensor for heavy metal ions detection

2016 ◽  
Vol 233 ◽  
pp. 31-38 ◽  
Author(s):  
R. Raghunandhan ◽  
L.H. Chen ◽  
H.Y. Long ◽  
L.L. Leam ◽  
P.L. So ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Fiber Optic ◽  
Interferometric Sensor ◽  
Metal Ions Detection

Fluorescence enhancement of coumarin–quinoline by transition metal ions: Detection of paramagnetic Ni2+ and Co2+

2009 ◽  
Vol 83 (1) ◽  
pp. 14-20 ◽  
Author(s):  
Weiying Lin ◽  
Lin Yuan ◽  
Zengmei Cao ◽  
Jianbo Feng ◽  
Yanming Feng
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Fluorescence Enhancement ◽  
Transition Metal Ions ◽  
Metal Ions Detection
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