Effect of metal ions on the thermo-optic properties of Rhodamine 6G-gold nanoparticle hybrids

Optik ◽  
2021 ◽  
pp. 166988
Author(s):  
Jisha John ◽  
Achamma Kurian ◽  
Sajan D. George
Keyword(s):  
Metal Ions ◽  
Gold Nanoparticle ◽  
Rhodamine 6G

Encapsulating toxic Rhodamine 6G dye, and Cr (VI) metal ions from liquid phase using AlPO4-5 molecular sieves. Preparation, characterization, and adsorption parameters

2021 ◽  
pp. 116549
Author(s):  
Anjani R.K. Gollakota ◽  
Venkata Subbaiah Munagapati ◽  
Krishna Prasad Shadangi ◽  
Guda Mallikarjuna Reddy ◽  
Jet-Chau Wen ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Metal Ions ◽  
Molecular Sieves ◽  
Rhodamine 6G ◽  
Adsorption Parameters ◽  
Rhodamine 6G Dye

scholarly journals A portable lab-on-a-chip system for gold-nanoparticle-based colorimetric detection of metal ions in water

2014 ◽  
Vol 8 (5) ◽  
pp. 052107 ◽  
Author(s):  
Chen Zhao ◽  
Guowei Zhong ◽  
Da-Eun Kim ◽  
Jinxia Liu ◽  
Xinyu Liu
Keyword(s):  
Metal Ions ◽  
Gold Nanoparticle ◽  
Colorimetric Detection ◽  
Lab On A Chip

Two-Photon Sensing of Dopamine by Using Au Nanoparticles

2015 ◽  
Vol 738-739 ◽  
pp. 31-37
Author(s):  
Cui Feng Jiang ◽  
Neng Yue Gao ◽  
Qi Sheng Wu ◽  
Yu Sun ◽  
Qing Hua Xu
Keyword(s):  
Ascorbic Acid ◽  
Uric Acid ◽  
Detection Limit ◽  
Metal Ions ◽  
Gold Nanoparticle ◽  
Au Nanoparticles ◽  
Cross Linking ◽  
Au Nps ◽  
Two Photon ◽  
Catechol Group

In this paper, we demonstrated a gold nanoparticle based two-photon photoluminescence (TPPL) assay for the detection of dopamine with the detection limit of 0.3 μM. Protonated dopamine molecules can bind bidentately to surface of gold atoms through the catechol group. The adsorption of dopamine displaces the stabilizing agent of citrate groups, and neutralizes the charge of solution, resulting in non-cross linking aggregation of Au NPs. Aggregation of Au NPs could induce significantly enhanced TPPL. Thus, a simple TPPL assay was designed. We have shown that when Au NPs solution was mixed with dopamine, TPPL intensity increased by about 47 times. The mechanism of sensing assay has been discussed. In addition, the TPPL assay was highly selective to dopamine and it can distinguish from uric acid, ascorbic acid and metal ions.

Gold Nanoparticle Included Graphene Oxide Modified Electrode: Picomole Detection of Metal Ions in Seawater by Stripping Voltammetry

2016 ◽  
Vol 71 (7) ◽  
pp. 715-723
Author(s):  
İlknur Üstündağ ◽  
Aslı Erkal ◽  
Tamer Koralay ◽  
Yusuf Kağan Kadıoğlu ◽  
Seungwon Jeon
Keyword(s):  
Graphene Oxide ◽  
Metal Ions ◽  
Gold Nanoparticle ◽  
Modified Electrode ◽  
Stripping Voltammetry

Rhodamine 6G based efficient chemosensor for the trivalent metal ions (Al3+, Cr3+ and Fe3+) upon single excitation with applications in combinational logic circuits and memory devices

The Analyst ◽  
2022 ◽  
Author(s):  
Dipankar Das ◽  
RABIUL ALAM ◽  
Mahammad Ali
Keyword(s):  
Metal Ions ◽  
Mass Spectroscopy ◽  
Rhodamine 6G ◽  
Logic Circuits ◽  
Memory Devices ◽  
Combinational Logic ◽  
Trivalent Metal ◽  
Combinational Logic Circuits ◽  
Trivalent Metal Ions ◽  
Spectroscopy Studies

A new rhodamine 6G based chemosensor (L3), has been synthesized and characterized by 1H, 13C, IR and Mass spectroscopy studies. It exhibits an excellent selective and sensitive CHEF based recognition...

Gold nanoparticle substrates for recyclable surface-enhanced Raman detection of Rhodamine 6G and Sudan I

2012 ◽  
Vol 526 ◽  
pp. 133-138 ◽  
Author(s):  
Haiyang Lin ◽  
Qi Shao ◽  
Fei Hu ◽  
Ronghui Que ◽  
Mingwang Shao
Keyword(s):  
Gold Nanoparticle ◽  
Rhodamine 6G ◽  
Sudan I ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

APPLICATION OF SULFUR-CONTAINING CHELATES COMPLEXES WITH PROTEINS FOR HIGH-SENSITIVE DETECTION OF HEAVY METALS

2020 ◽  
pp. 313-314
Author(s):  
A. Berlina ◽  
A. Zherdev ◽  
B. Dzantiev
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Ions ◽  
Gold Nanoparticle ◽  
Heavy Metal Ions ◽  
Sensitive Detection ◽  
Mercury Ions ◽  
Protein Conjugates ◽  
Mercaptosuccinic Acid ◽  
Sulfur Containing

The usage of sulfur-containing chelate - protein conjugates in a non-competitive flow membrane analysis of heavy metal ions has been characterized. It was shown that these reagents in combination with oligonucleotide - gold nanoparticle conjugates provide the detection of 5 ng/ml and 100 ng/ml of mercury ions in water in the case of glutathione and mercaptosuccinic acid, respectively.

Analyte-triggered autocatalytic amplification combined with gold nanoparticle probes for colorimetric detection of heavy-metal ions

2017 ◽  
Vol 53 (54) ◽  
pp. 7477-7480 ◽  
Author(s):  
Juanhua Yang ◽  
Yun Zhang ◽  
Lang Zhang ◽  
Huili Wang ◽  
Jinfang Nie ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Gold Nanoparticles ◽  
Metal Ions ◽  
Gold Nanoparticle ◽  
Heavy Metal Ions ◽  
Colorimetric Detection ◽  
Detection Limits ◽  
Label Free ◽  
Nanoparticle Probes ◽  
Free Gold

This work reports a new nanosensor based on analyte-triggered autocatalytic amplification and label-free gold nanoparticles for the colorimetric detection of Hg2+, Cu2+and Ag+with detection limits less than 3 nM.

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