Synthesis of Small Au-Ag Core-Shell Cubes, Cuboctahedra, and Octahedra with Size Tunability and Their Optical and Photothermal Properties.

Synthesis of Small Au-Ag Core-Shell Cubes, Cuboctahedra, and Octahedra with Size Tunability and Their Optical and Photothermal Properties.

Small (Weinheim an der Bergstrasse, Germany) (2015-10-10)

Chieh Chiang, Michael H Huang

ABSTRACT

Aqueous phase synthesis of small Au-Ag core-shell nanocubes, cuboctahedra, and octahedra is achieved through the deposition of Ag shells on small octahedral Au cores. These nanocrystals show efficient photothermal activity and can assemble into supercrystals.

MATERIALS

Product Number

Brand

Product Description

609765

Sigma-Aldrich

Sodium hydroxide-¹⁶O solution, 20 wt. % in H₂¹⁶O, 99.9 atom % ¹⁶O

H5882

Sigma-Aldrich

Hexadecyltrimethylammonium bromide, ≥98%

H9151

Sigma-Aldrich

Hexadecyltrimethylammonium bromide, BioXtra, ≥99%

52365

Sigma-Aldrich

Hexadecyltrimethylammonium bromide, BioUltra, Molecular Biology, ≥99.0% (AT)

H6269

Sigma-Aldrich

Hexadecyltrimethylammonium bromide, Molecular Biology, ≥99%

47863

Supelco

L-Ascorbic acid, analytical standard

S5770

Sigma-Aldrich

Citrate Concentrated Solution, BioReagent, suitable for coagulation assays, 4 % (w/v)

757527

Sigma-Aldrich

Sodium hydroxide, ultra dry, powder or crystals, 99.99% trace metals basis

52366

Sigma-Aldrich

Hexadecyltrimethylammonium chloride, ≥98.0% (NT)

292737

Sigma-Aldrich

Cetyltrimethylammonium chloride solution, 25 wt. % in H₂O

S2770

Sigma-Aldrich

Sodium hydroxide solution, 1.0 N, BioReagent, suitable for cell culture

72068

Sigma-Aldrich

Sodium hydroxide solution, BioUltra, Molecular Biology, 10 M in H₂O

306576

Sigma-Aldrich

Sodium hydroxide, pellets, semiconductor grade, 99.99% trace metals basis

S8045

Sigma-Aldrich

Sodium hydroxide, BioXtra, ≥98% (acidimetric), pellets (anhydrous)

415413

Sigma-Aldrich

Sodium hydroxide solution, 50% in H₂O

484024

Sigma-Aldrich

Sodium hydroxide, reagent grade, 97%, flakes

71687

Sigma-Aldrich

Sodium hydroxide, BioUltra, suitable for luminescence, ≥98.0% (T), pellets

221465

Sigma-Aldrich

Sodium hydroxide, ACS reagent, ≥97.0%, pellets

367176

Sigma-Aldrich

Sodium hydroxide, beads, 16-60 mesh, reagent grade, 97%

71690

Sigma-Aldrich

Sodium hydroxide, puriss. p.a., ACS reagent, K ≤0.02%, ≥98.0% (T), pellets

05211

Sigma-Aldrich

Sodium hydroxide solution, purum, ≥32%

S5881

Sigma-Aldrich

Sodium hydroxide, reagent grade, ≥98%, pellets (anhydrous)

S8263

Sigma-Aldrich

Sodium hydroxide solution, 5.0 M

655104

Sigma-Aldrich

Sodium hydroxide, reagent grade, 97%, powder

06203

Sigma-Aldrich

Sodium hydroxide, puriss., meets analytical specification of Ph. Eur., BP, NF, E524, 98-100.5%, pellets

255564

Sigma-Aldrich

L-Ascorbic acid, ACS reagent, ≥99%

A7506

Sigma-Aldrich

L-Ascorbic acid, reagent grade, crystalline

A4544

Sigma-Aldrich

L-Ascorbic acid, suitable for cell culture, suitable for plant cell culture, ≥98%

33034

Sigma-Aldrich

L-Ascorbic acid, puriss. p.a., ACS reagent, reag. ISO, Ph. Eur., 99.7-100.5% (oxidimetric)

A0278

Sigma-Aldrich

L-Ascorbic acid, reagent grade