Optical Sensors with Metal Ions

1999 ◽  
pp. 317-347 ◽  
Author(s):  
D. Max Roundhill
Keyword(s):  
Metal Ions ◽  
Optical Sensors

Optical Sensors Based on Nanostructured Cage Materials for the Detection of Toxic Metal Ions

2006 ◽  
Vol 45 (43) ◽  
pp. 7202-7208 ◽  
Author(s):  
Tatineni Balaji ◽  
Sherif A. El-Safty ◽  
Hideyuki Matsunaga ◽  
Takaaki Hanaoka ◽  
Fujio Mizukami
Keyword(s):  
Metal Ions ◽  
Optical Sensors ◽  
Toxic Metal ◽  
Toxic Metal Ions

scholarly journals Metal Nanostructures for Environmental Pollutant Detection Based on Fluorescence

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 276
Author(s):  
Luca Burratti ◽  
Erica Ciotta ◽  
Fabio De Matteis ◽  
Paolo Prosposito
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Optical Sensors ◽  
Heavy Metal Ions ◽  
Analytical Techniques ◽  
Environmental Pollutant ◽  
Metal Nanostructures ◽  
Pesticides In Water ◽  
Metal Nanomaterials

Heavy metal ions and pesticides are extremely dangerous for human health and environment and an accurate detection is an essential step to monitor their levels in water. The standard and most used methods for detecting these pollutants are sophisticated and expensive analytical techniques. However, recent technological advancements have allowed the development of alternative techniques based on optical properties of noble metal nanomaterials, which provide many advantages such as ultrasensitive detection, fast turnover, simple protocols, in situ sampling, on-site capability and reduced cost. This paper provides a review of the most common photo-physical effects impact on the fluorescence of metal nanomaterials and how these processes can be exploited for the detection of pollutant species. The final aim is to provide readers with an updated guide on fluorescent metallic nano-systems used as optical sensors of heavy metal ions and pesticides in water.

Green Carbon Dots as Optical Sensors for Metal Ions

2021 ◽  
pp. 71-96
Author(s):  
Mamatha Susan Punnoose ◽  
Beena Mathew
Keyword(s):  
Metal Ions ◽  
Optical Sensors ◽  
Carbon Dots

A chromogenic crown ether as a sensing molecule in optical sensors for the detection of hard metal ions

1988 ◽  
pp. 893-895 ◽  
Author(s):  
Jos van Gent ◽  
Ernst J. R. Sudhölter ◽  
Paul V. Lambeck ◽  
Theo J. A. Popma ◽  
Gerrit J. Gerritsma ◽  
...  
Keyword(s):  
Crown Ether ◽  
Metal Ions ◽  
Optical Sensors ◽  
Hard Metal

β-Carboline–imidazopyridine hybrids: selective and sensitive optical sensors for copper and fluoride ions

2018 ◽  
Vol 42 (12) ◽  
pp. 10317-10326 ◽  
Author(s):  
Suman Swami ◽  
Debasis Behera ◽  
Arunava Agarwala ◽  
Ved Prakash Verma ◽  
Rahul Shrivastava
Keyword(s):  
Metal Ions ◽  
Optical Sensors ◽  
Fluoride Ions

Two rationally designed β-carboline–imidazopyridine hybrid chromofluorescent sensors S1 and S2 have been successfully synthesized and evaluated for the selective sensing of metal ions and anions.

Optical Sensors Based on Nanostructured Cage Materials for the Detection of Toxic Metal Ions

2006 ◽  
Vol 118 (43) ◽  
pp. 7360-7366 ◽  
Author(s):  
Tatineni Balaji ◽  
Sherif A. El-Safty ◽  
Hideyuki Matsunaga ◽  
Takaaki Hanaoka ◽  
Fujio Mizukami
Keyword(s):  
Metal Ions ◽  
Optical Sensors ◽  
Toxic Metal ◽  
Toxic Metal Ions

Use of squarylium dyes as a sensing molecule in optical sensors for the detection of metal ions

1999 ◽  
Vol 41 (3) ◽  
pp. 221-226 ◽  
Author(s):  
Sung Hoon Kim ◽  
Sun Kyung Han ◽  
Sang Hyun Park ◽  
Sang Min Lee ◽  
Su Mi Lee ◽  
...  
Keyword(s):  
Metal Ions ◽  
Optical Sensors ◽  
Squarylium Dyes

scholarly journals Development of Graphene Quantum Dots-Based Optical Sensor for Toxic Metal Ion Detection

Sensors ◽  
2019 ◽  
Vol 19 (18) ◽  
pp. 3850 ◽  
Author(s):  
Nur Ain Asyiqin Anas ◽  
Yap Wing Fen ◽  
Nur Alia Sheh Omar ◽  
Wan Mohd Ebtisyam Mustaqim Mohd Daniyal ◽  
Nur Syahira Md Ramdzan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Metal Ions ◽  
Optical Sensors ◽  
Metal Ion ◽  
Limit Of Detection ◽  
Graphene Quantum Dots ◽  
Toxic Metal ◽  
Human Beings ◽  
Toxic Metal Ions ◽  
Sensing Applications

About 71% of the Earth’s surface is covered with water. Human beings, animals, and plants need water in order to survive. Therefore, it is one of the most important substances that exist on Earth. However, most of the water resources nowadays are insufficiently clean, since they are contaminated with toxic metal ions due to the improper disposal of pollutants into water through industrial and agricultural activities. These toxic metal ions need to be detected as fast as possible so that the situation will not become more critical and cause more harm in the future. Since then, numerous sensing methods have been proposed, including chemical and optical sensors that aim to detect these toxic metal ions. All of the researchers compete with each other to build sensors with the lowest limit of detection and high sensitivity and selectivity. Graphene quantum dots (GQDs) have emerged as a highly potential sensing material to incorporate with the developed sensors due to the advantages of GQDs. Several recent studies showed that GQDs, functionalized GQDs, and their composites were able to enhance the optical detection of metal ions. The aim of this paper is to review the existing, latest, and updated studies on optical sensing applications of GQDs-based materials toward toxic metal ions and future developments of an excellent GQDs-based SPR sensor as an alternative toxic metal ion sensor.

ChemInform Abstract: A Chromogenic Crown Ether as a Sensing Molecule in Optical Sensors for the Detection of Hard Metal Ions.

ChemInform ◽  
1989 ◽  
Vol 20 (3) ◽  
Author(s):  
J. VAN GENT ◽  
E. J. R. SUDHOELTER ◽  
P. V. LAMBECK ◽  
T. J. A. POPMA ◽  
G. J. GERRITSMA ◽  
...  
Keyword(s):  
Crown Ether ◽  
Metal Ions ◽  
Optical Sensors ◽  
Hard Metal
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