Optical Limiting of Gold Nanoparticle Aggregates Induced by Electrolytes

The nonvolatility and remarkable solvation property of ionic liquids is exploited to image the dynamic processes of DNA supramolecular aggregates and gold nanoparticle aggregates at nanometer resolution in an unsealed manner.

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Metabolizable dopamine-coated gold nanoparticle aggregates: preparation, characteristics, computed tomography imaging, acute toxicity, and metabolism in vivo

Journal of Materials Chemistry B ◽

10.1039/c5tb02497h ◽

2016 ◽

Vol 4 (6) ◽

pp. 1090-1099 ◽

Cited By ~ 9

Author(s):

Yao Yu ◽

Youshen Wu ◽

Jiajun Liu ◽

Ke Li ◽

Daocheng Wu

Keyword(s):

Computed Tomography ◽

Acute Toxicity ◽

Gold Nanoparticle ◽

Circulation Time ◽

Computed Tomography Imaging ◽

Lower Toxicity ◽

Tomography Imaging ◽

Imaging Results ◽

Nanoparticle Aggregates

We prepared metabolizable MSA AuNPs@DPA aggregates, which exhibit improved CT imaging results, much lower toxicity and much longer circulation time in vivo.

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Reversible Generation of Gold Nanoparticle Aggregates with Changeable Interparticle Interactions by UV Photoactivation

Langmuir ◽

10.1021/la035961g ◽

2004 ◽

Vol 20 (3) ◽

pp. 575-578 ◽

Cited By ~ 26

Author(s):

Anjali Pal ◽

Sujit Kumar Ghosh ◽

Kunio Esumi ◽

Tarasankar Pal

Keyword(s):

Gold Nanoparticle ◽

Interparticle Interactions ◽

Nanoparticle Aggregates

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pH-Induced Reversible Expansion/Contraction of Gold Nanoparticle Aggregates

Small ◽

10.1002/smll.200800569 ◽

2008 ◽

Vol 4 (12) ◽

pp. 2191-2194 ◽

Cited By ~ 49

Author(s):

Yi Chen ◽

Chengde Mao

Keyword(s):

Gold Nanoparticle ◽

Nanoparticle Aggregates

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THRESHOLD-TUNABLE OPTICAL LIMITERS OF Au NANOPARTICLES IN CASTOR OIL

Journal of Nonlinear Optical Physics & Materials ◽

10.1142/s0218863512500245 ◽

2012 ◽

Vol 21 (02) ◽

pp. 1250024 ◽

Cited By ~ 7

Author(s):

HODA ALEALI ◽

LEILA SARKHOSH ◽

ROUHOLLAH KARIMZADEH ◽

NASTARAN MANSOUR

Keyword(s):

Gold Nanoparticle ◽

Castor Oil ◽

Nonlinear Refraction ◽

Optical Limiting ◽

Nanoparticle Concentration ◽

Non Local ◽

Set Up ◽

532 Nm ◽

Limiting Threshold ◽

Good Agreement

Optical limiting performance of gold nanoparticles (AuNPs) in castor oil is studied using a low power laser irradiation at 532 nm. Our results suggest that it is possible to tune the optical limiting threshold of the AuNPs by modifying the parameters of the set-up and gold nanoparticle concentration of the colloids. The closed Z-scan measurements reveal that non-local thermal nonlinear refraction process is responsible for the limiting action of the colloids. We have investigated the Z-scan behavior of the samples based on the non-local thermal nonlinear refraction process without using photo-thermal thin lens approximation. It is shown that this model is in good agreement with the experimental results and large enhancement factors are measured for values of nonlinear thermal refractive index and thermo-optical coefficients of the colloids at higher gold nanoparticle concentration compared to the measurement of castor oil.

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