Real-time atomistic simulation of the Ostwald ripening of TiO2 supported Au nanoparticles

Atomic simulation shows a stagewise Oswald Ripening with changing rate-determining step. In the ripening, the particles exchange dimers among each other instead of monomers.

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Illite-smectites and the influence of burial diagenesis on the geochemical cycling of nitrogen

Clay Minerals ◽

10.1180/000985598545877 ◽

1998 ◽

Vol 33 (4) ◽

pp. 539-546 ◽

Cited By ~ 23

Author(s):

P. A. Schroeder ◽

A. A. McLain

Keyword(s):

Reaction Mechanisms ◽

Ostwald Ripening ◽

Precipitation Reaction ◽

Oil Well ◽

Burial Diagenesis ◽

Fixed Nitrogen ◽

Geochemical Cycling ◽

Oil Generation ◽

Fraction Increase ◽

Changing Rate

AbstractFixed nitrogen in illite-smectites (I-S) has been measured for Miocene shales from a Gulf of Mexico oil well. Fixed N values for the <0.2 µm fraction increase with depth from 150 ppm (1000 m) to a maximum of 360 ppm (3841 m). This increase is coincident with illitization from 41% I in I-S to 75% I in I-S. Below 3841 m, fixed N values decrease to 190 ppm (4116 m) while I-S is maintained with a slight increase from 77 to 82%. The changes in fixed N with increasing illitization are consistent with the notion that illitization proceeds via both transformation and dissolution/ precipitation reaction mechanisms. The trend of decreasing fixed N in illitic I-S is compatible with surface-controlled crystal growth and Ostwald ripening mechanisms for illitization. The trend may also be linked to the timing of maximum NH] release from kerogen maturation during oil generation. The changing rate of NH+4 liberation from organic matter and multiple illitization reaction mechanisms can result in complex N geochemical cycling pathways throughout early diagenesis to metamorphism.

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Cu2O-mediated assembly of electrodeposition of Au nanoparticles onto 2D metal-organic framework nanosheets for real-time monitoring of hydrogen peroxide released from living cells

Analytical and Bioanalytical Chemistry ◽

10.1007/s00216-020-03032-6 ◽

2020 ◽

Author(s):

Sha Chen ◽

Peng Zhao ◽

Liuyi Jiang ◽

Shiying Zhou ◽

Jilin Zheng ◽

...

Keyword(s):

Hydrogen Peroxide ◽

Real Time ◽

Au Nanoparticles ◽

Metal Organic Framework ◽

Living Cells ◽

Real Time Monitoring ◽

Metal Organic ◽

Organic Framework

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Extracting nano-gold from HAuCl4 solution manipulated with electrons

Physical Chemistry Chemical Physics ◽

10.1039/c6cp06032c ◽

2016 ◽

Vol 18 (43) ◽

pp. 30079-30085 ◽

Cited By ~ 4

Author(s):

Y. Lu ◽

K. Wang ◽

F.-R. Chen ◽

W. Zhang ◽

M. L. Sui

Keyword(s):

Real Time ◽

Electron Irradiation ◽

Growth Kinetics ◽

Au Nanoparticles ◽

Water Solution ◽

Nano Gold ◽

Charging Effect ◽

Kinetics Of

We report the migration and segregation behaviors of Au atoms in solution during real time, by exploiting a charging effect in a dilute HAuCl4 water solution under electron irradiation, to allow the growth kinetics of Au nanoparticles to be successfully controlled.

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High Sensitive Au Nanoparticles Igzo FET Cancer Sensor Via Real-Time Analysis Micro-Fluid Separation

ECS Meeting Abstracts ◽

10.1149/ma2019-02/51/2263 ◽

2019 ◽

Keyword(s):

Real Time ◽

Au Nanoparticles ◽

Time Analysis ◽

Real Time Analysis ◽

Fluid Separation

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Real time STM observation of Ostwald ripening of Pd nanoparticles on TiO2(110) at elevated temperature

Surface Science ◽

10.1016/s0039-6028(02)02003-4 ◽

2002 ◽

Vol 515 (2-3) ◽

pp. L504-L508 ◽

Cited By ~ 39

Author(s):

A Howard ◽

C.E.J Mitchell ◽

R.G Egdell

Keyword(s):

Elevated Temperature ◽

Real Time ◽

Ostwald Ripening ◽

Pd Nanoparticles

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Temperature monitoring during light-induced release of cargo using polymer capsules modified with gold nanoparticles and nanodiamonds

Journal of Physics Conference Series ◽

10.1088/1742-6596/2015/1/012045 ◽

2021 ◽

Vol 2015 (1) ◽

pp. 012045

Author(s):

E N Gerasimova ◽

V V Yaroshenko ◽

P M Talianov ◽

O O Peltek ◽

L V Mikhailova ◽

...

Keyword(s):

Drug Delivery ◽

Gold Nanoparticles ◽

Side Effects ◽

Temperature Measurement ◽

Real Time ◽

Au Nanoparticles ◽

Living Cells ◽

Temperature Monitoring ◽

Biological Objects ◽

Multifunctional Platform

Abstract Application of different light-sensitive drug delivery carriers is limited due to a risk of overheating of living cells. Therefore, a real-time temperature monitoring within biological objects that controls the photothermal release of different cargos from light-sensitive carriers is highly demanded. In this work, we develop a multifunctional platform comprised of polymer microcapsules modified with nitrogen vacancies (NV) centers as nanothermometers and gold (Au) nanoparticles (NPs) as heating elements for the realization of laser-induced cargo release with a simultaneous temperature measurement inside cells. Such platform allows to prevent unwanted side effects related with the overheating of living cells and tissues.

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Probing the ligand exchange kinetics of phenynyl-based ligands on colloidal Au nanoparticles

Materials Chemistry Frontiers ◽

10.1039/d0qm00612b ◽

2021 ◽

Vol 5 (1) ◽

pp. 465-471

Author(s):

Ting Xiang ◽

Jianpeng Zong ◽

Wenjia Xu ◽

Yuhua Feng ◽

Hongyu Chen

Keyword(s):

Real Time ◽

Ligand Exchange ◽

Au Nanoparticles ◽

Relative Strength ◽

Real Time Monitoring ◽

Exchange Kinetics ◽

Colloidal Au ◽

Kinetics Of

We show that phenynyl ligand could readily bind to colloidal Au nanoparticles. By real-time monitoring the SERS during ligand exchange, the relative strength of phenynyls, thiols and PVP ligands, and different phenynyls were successfully ranked.

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