跳转至内容

One-step synthesis of collagen hybrid gold nanoparticles and formation on Egyptian-like gold-plated archaeological ivory.

One-step synthesis of collagen hybrid gold nanoparticles and formation on Egyptian-like gold-plated archaeological ivory.

Angewandte Chemie (International ed. in English) (2014-06-27)

Jolanda Spadavecchia, Emilande Apchain, Marie Albéric, Elisabeth Fontan, Ina Reiche

摘要

A one-step method is reported to synthesize hybrid gold nanoparticles (AuNPs) by reduction of HAuCl4 in acetic solution in the presence of collagen (Col), dicarboxylic acid-terminated polyethylene glycol (PEG), and cetyltetrammonium bromide (CTAB) mixed with hydoxyapatite (HAP) as surfactants. Such formation process of AuNPs was shown to be responsible for purple stains naturally formed on Egyptianizing archaeological gilded ivories from 8th BC Syria. The understanding of this formation mechanism, which most likely involves a step with hybrid AuNPs, allows the establishing of an authenticity marker of ancient gold-plated ivories.

材料

货号

品牌

产品描述

Sigma-Aldrich

纯乙醇, for molecular biology

Sigma-Aldrich

纯乙醇, 200 proof, ACS reagent, ≥99.5%

Sigma-Aldrich

硝酸银, ACS reagent, ≥99.0%

Sigma-Aldrich

纯乙醇, 200 proof

Sigma-Aldrich

纯乙醇, 200 proof, meets USP testing specifications

Sigma-Aldrich

硼氢化钠, powder, ≥98.0%

Sigma-Aldrich

溴化十六烷基三甲铵, ≥98%

Sigma-Aldrich

纯乙醇, for molecular biology

Sigma-Aldrich

硝酸银, ReagentPlus^®, ≥99.0% (titration)

Sigma-Aldrich

硼氢化钠, ReagentPlus^®, 99%

Sigma-Aldrich

溴化十六烷基三甲铵, for molecular biology, ≥99%

Sigma-Aldrich

酒精, ACS reagent, prima fine spirit, without additive, F15 o¹

Sigma-Aldrich

酒精, purum, absolute ethanol, denaturated with 4.8% isopropanol, A15 IPA¹, ≥99.8% (based on denaturant-free substance)

Sigma-Aldrich

硝酸银, 99.9999% trace metals basis

Sigma-Aldrich

溴化十六烷基三甲铵, BioXtra, ≥99%

Sigma-Aldrich

硝酸银, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.8%

Sigma-Aldrich

硼氢化钠, granular, 99.99% trace metals basis

Sigma-Aldrich

溴化十六烷基三甲铵, BioUltra, for molecular biology, ≥99.0% (AT)

Sigma-Aldrich

硼氢化钠, purum p.a., ≥96% (gas-volumetric)

Sigma-Aldrich

纯乙醇, 190 proof, ACS spectrophotometric grade, 95.0%

Sigma-Aldrich

硝酸银, meets analytical specification of Ph. Eur., BP, USP, 99.8-100.5%

Sigma-Aldrich

硝酸银, puriss. p.a., ≥99.5% (AT)

Sigma-Aldrich

酒精, purum, fine spirit, denaturated with 4.8% methanol, F25 METHYL¹, ~96% (based on denaturant-free substance)

Sigma-Aldrich

硝酸银溶液, 2.5 % (w/v) AgNO₃ in H₂O

Sigma-Aldrich

纯乙醇, 200 proof, anhydrous, ≥99.5%

Sigma-Aldrich

硝酸银, BioReagent, suitable for plant cell culture, >99% (titration)

Supelco

Ethanol 溶液, certified reference material, 2000 μg/mL in methanol

Sigma-Aldrich

酒精, puriss. p.a., absolute, ≥99.8% (GC)

Sigma-Aldrich

硼氢化钠溶液, ~12 wt. % in 14 M NaOH

Sigma-Aldrich

硼氢化钠, granular, 10-40 mesh, 98%