Facile and Green Fabrication of Carrageenan-Silver Nanoparticles for Colorimetric Determination of Cu2+ and S2−

Wang, Yesheng; Dong, Xueyi; Zhao, Li; Xue, Yong; Zhao, Xia; Li, Qun; Xia, Yanzhi

doi:10.3390/nano10010083

Cited by 49 publications

(27 citation statements)

References 38 publications

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“…The sensor turned yellow to brown after interaction with S 2− ions. The linearity range and detection limit found were 2.5 μM – 1.3 mM and 2.0 μM respectively [67] . Similarly, Pourreza et al ., (2015) fabricated a colorimetric sensor of Ag nanoparticles on bacterial cellulose nanopaper for detection of cyanide ions in water.…”

Section: Green Synthesized Nanomaterials Based Colorimetric Sensors Fosupporting

confidence: 59%

Green Synthesized Nanomaterial‐based Colorimetric Sensors for Detection of Environmental Toxicants

2021

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Nanotechnology has emerged as a significant tool in various fields of science. Synthesis of metal nanoparticles using physical and chemical methods are based on the use of toxic chemicals which have deleterious effect on the environment. To overcome the limitations of chemical methods, green synthesis provides an eco‐friendly and inexpensive alternative path for the synthesis of metal nanoparticles. Since nature provides a variety of products in the form of plants, bacteria, fungi and biopolymers which serve the purpose in a safer way, green resources like plant extracts, certain bacteria, fungus and biopolymers have been used to synthesize metal and metal oxide nanoparticles. Metal nanoparticles as colorimetric sensors gained much attention in recent years due to their sensitive and selective color change which is visible by the naked eye. They are portable and cost effective. This review highlights the green synthesis of metal and metal oxide nanoparticles using plant extracts and biopolymers, and their characterization, mechanism and factors affecting synthesis. Specific application of these green synthesized nanoparticles as colorimetric sensors for the detection of toxic pollutants in water is discussed in detail.

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Section: Green Synthesized Nanomaterials Based Colorimetric Sensors Fosupporting

confidence: 59%

Green Synthesized Nanomaterial‐based Colorimetric Sensors for Detection of Environmental Toxicants

2021

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“…On the other hand, the void area has been used to tune the refractive index, increase the active region for catalysis, and advance the ability to tolerate cyclic volume modifications. The morphology plays a key role, especially for the possibility of having materials with different symmetries (spheres, AgNPs, cubes AgNCs) [79][80][81][82][83][84][85][86][87] or without defined and reproducible symmetry (stars, AgNSs, flower, AgNFs, wires, AgNWs) [69,[88][89][90][91][92][93][94]. TEM images of silver nanoparticles of different geometries and shape are presented in Figure 4.…”

Section: Synthesis Of Agnps Used For Water Protection Applicationsmentioning

confidence: 99%

Silver Nanoparticles as Colorimetric Sensors for Water Pollutants

2020

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This review provides an up-to-date overview on silver nanoparticles-based materials suitable as optical sensors for water pollutants. The topic is really hot considering the implications for human health and environment due to water pollutants. In fact, the pollutants present in the water disturb the spontaneity of life-related mechanisms, such as the synthesis of cellular constituents and the transport of nutrients into cells, and this causes long / short-term diseases. For this reason, research continuously tends to develop always innovative, selective and efficient processes / technologies to remove pollutants from water. In this paper we will report on the silver nanoparticles synthesis, paying attention to the stabilizers and mostly used ligands, to the characterizations, to the properties and applications as colorimetric sensors for water pollutants. As water pollutants our attention will be focused on several heavy metals ions, such as Hg(II), Ni(II),Cu(II), Fe(III), Mn(II), Cr(III/V) Co(II) Cd(II), Pb(II), due to their dangerous effects on human health. In addition, several systems based on silver nanoparticles employed as pesticides colorimetric sensors in water will be also discussed. All of this with the aim to provide to readers a guide about recent advanced silver nanomaterials, used as colorimetric sensors in water.

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“…The main difference in this work is the nature of the sensing material itself, where carrageenan is prepared in a hydrogel form. The limit of detection reported was 2.92 × 10 −4 M. Recently, Wang and co-workers [ 56 ] prepared carrageenan-AgNPs for the dual colorimetric detection of Cu 2+ and S 2− . In their work, AgNPs were synthesized in a greener way using carrageenan as a reducing and capping agent.…”

Section: Application Of Polysaccharides As Sensing Materials In Optmentioning

confidence: 99%

Polysaccharides as the Sensing Material for Metal Ion Detection-Based Optical Sensor Applications

Azeman

Arsad

Bakar

2020

Sensors

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The incorporation of a proper sensing material towards the construction of high selectivity optical sensing devices is vital. Polysaccharides, such as chitosan and carrageenan, are among the bio-based sensing materials that are extensively employed due to their remarkable physicochemical attributes. This paper highlights the critical aspects of the design of suitable polysaccharides for the recognition of specific analytes through physical and chemical modifications of polysaccharide structure. Such modifications lead to the enhancement of physicochemical properties of polysaccharides and optical sensor performance. Chitosan and carrageenan are two materials that possess excellent features which are capable of sensing target analytes via various interactions. The interaction between polysaccharides and analytes is dependent on the availability of functional groups in their structure. The integration of polysaccharides with various optical sensing techniques further improves optical sensor performance. The application of polysaccharides as sensing materials in various optical sensing techniques is also highlighted, particularly for metal ion sensing.

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Facile and Green Fabrication of Carrageenan-Silver Nanoparticles for Colorimetric Determination of Cu2+ and S2−

Cited by 49 publications

References 38 publications

Green Synthesized Nanomaterial‐based Colorimetric Sensors for Detection of Environmental Toxicants

Green Synthesized Nanomaterial‐based Colorimetric Sensors for Detection of Environmental Toxicants

Silver Nanoparticles as Colorimetric Sensors for Water Pollutants

Polysaccharides as the Sensing Material for Metal Ion Detection-Based Optical Sensor Applications

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