An optical sensor based on covalent immobilization of 1-aminopyrene using Au nanoparticles as bridges and carriers

Tan, Song; Hu, Yanjun; Chen, Jiwei; Shen, Guo‐Li; Yu, Ru‐Qin

doi:10.1016/j.snb.2006.11.053

Cited by 11 publications

(8 citation statements)

References 29 publications

(36 reference statements)

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“…Some potential applications go from biological to electronic applications, some of them are: sensor technology [3]- [5], biological labeling, drug delivery system and treatment for some cancers [6,7], surface-enhanced Raman scattering, paintings [8], optical diodes, high speed optical logic devices [9]; on the other hand, properties of nanoparticles as the thermal conductivity and nonlinear optical properties, are interesting, because by using nanoparticles it is possible to elevate the thermal conductivity of fluids being these metallic [10]- [12], or nonmetallic [13,14] with different shapes and sizes, and suspended in different fluids, which modified the nonlinear optical properties of fluids. Nonlinear optical gives origin to nonlinear optical phenomena as modulation instability [15,16], self-diffraction [17,18], nonlinear shock waves [19,20], stabilization of complex soliton structures [21,22], and these phenomena can be applied to design optical limiters, multiplexors, modulators, ultrafast optical communication [23]- [25].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear optical properties of Au-nanoparticles conjugated with lipoic acid in water

Trejo‐Durán

Cornejo-Monroy

Alvarado‐Méndez

et al. 2014

J. Eur. Opt. Soc.-Rapid Publ.

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Gold nanoparticles were chemically conjugated with lipoic acid to control their optical properties. Z-scan and other optical techniques were used to characterize the non-linear behavior of the resulting nanostructured materials. The results show that the nonlinearity is of thermal origin, which can be controlled by the use of lipoic acid as well as other organic molecules conjugated onto metal nanoparticles. In particular, the presence of lipoic acid increases n 2 , θ and dn/dt.

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Section: Introductionmentioning

confidence: 99%

Nonlinear optical properties of Au-nanoparticles conjugated with lipoic acid in water

Trejo‐Durán

Cornejo-Monroy

Alvarado‐Méndez

et al. 2014

J. Eur. Opt. Soc.-Rapid Publ.

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“…Hence, the development of fast, convenient, and specific analytical methods for TNP and DNP is highly desirable. [8] Recently, a new class of organic molecules has been developed that are non-emissive in solution but emit strong fluorescence upon aggregation, an effect termed aggregationinduced emission (AIE). [9] These organic compounds show great potential, not only in efficient organic light-emitting diodes (OLEDs) but also in highly selective and stable fluorescent sensors for biological and chemical analytes.…”

Section: Introductionmentioning

confidence: 99%

Highly Sensitive and Selective Detection of Nitrophenolic Explosives by Using Nanospheres of a Tetraphenylethylene Macrocycle Displaying Aggregation‐Induced Emission

Feng

Zheng

2013

Chemistry A European J

127

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A tetraphenylethylene (TPE) Schiff-base macrocycle showing an aggregation-induced emission (AIE) effect has been synthesized, which could aggregate into nanospheres and emit yellow fluorescence in aqueous media. By virtue of its AIE effect, the macrocycle showed a sensitive and selective response to 2,4,6-trinitrophenol (TNP) and 2,4-dinitrophenol (DNP) among a number of nitroaromatic compounds, which could be used to detect TNP and DNP at nanomolar levels. Moreover, it exhibited a superamplified quenching effect with DNP but not with TNP, providing a possible means of discriminating these two compounds. In comparison with open-chain TPE Schiff-bases, the cavity of the macrocycle is essential for the selectivity for DNP over TNP. In addition, quantitative analyses of both DNP and TNP in real water samples and qualitative detection of these two analytes in the solid state by the macrocycle have been tested. The reliability of the quantitative analysis has been confirmed by HPLC. Our findings demonstrate that the TPE Schiff-base macrocycle has great potential as an excellent sensor for DNP and TNP.

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“…In our previous work, gold nanoparticles were used as bridges and carriers for anchoring indicator dyes, the obtained sensors showed no dye-leaching, rapid response, good reproducibility and reversibility [21]. Compared with gold nanoparticles, silver nanoparticles are cheaper.…”

Section: Introductionmentioning

confidence: 99%

A novel fluorescence sensor based on covalent immobilization of 3-amino-9-ethylcarbazole by using silver nanoparticles as bridges and carriers

Tan

Gong

et al. 2009

Analytica Chimica Acta

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An optical sensor based on covalent immobilization of 1-aminopyrene using Au nanoparticles as bridges and carriers

Cited by 11 publications

References 29 publications

Nonlinear optical properties of Au-nanoparticles conjugated with lipoic acid in water

Nonlinear optical properties of Au-nanoparticles conjugated with lipoic acid in water

Highly Sensitive and Selective Detection of Nitrophenolic Explosives by Using Nanospheres of a Tetraphenylethylene Macrocycle Displaying Aggregation‐Induced Emission

A novel fluorescence sensor based on covalent immobilization of 3-amino-9-ethylcarbazole by using silver nanoparticles as bridges and carriers

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