Transitional Metal/Chalcogen Dependant Interactions of Hairpin DNA with Transition Metal Dichalcogenides, MX2.

Transitional Metal/Chalcogen Dependant Interactions of Hairpin DNA with Transition Metal Dichalcogenides, MX2.

Chemphyschem : a European journal of chemical physics and physical chemistry (2015-05-28)

Adeline Huiling Loo, Alessandra Bonanni, Zdenek Sofer, Martin Pumera

ABSTRACT

Owing to the attractive properties that transition metal dichalcogenides (TMDs) display, they have found recent application in the fabrication of biosensing devices. These devices involve the immobilization of a recognition element such as DNA onto the surface of TMDs. Therefore, it is imperative to examine the interactions between TMDs and DNA. Herein, we explore the effect of different transition metals (Mo and W) and chalcogens (S and Se) on the interactions between hairpin DNA and TMDs of both bulk and t-BuLi exfoliated forms. We discovered that the interactions are strongly dependent on the metal/chalcogen composition in TMDs.

MATERIALS

Product Number

Brand

Product Description

94046

Sigma-Aldrich

Sodium phosphate dibasic solution, BioUltra, 0.5 M in H₂O

705551

Sigma-Aldrich

Hydrogen chloride solution, 3 M in cyclopentyl methyl ether (CPME)

W530574

Sigma-Aldrich

Hydrochloric acid solution, 32 wt. % in H₂O, FCC

59222C

SAFC

Sodium chloride solution, 5 M

S6191

Sigma-Aldrich

Sodium chloride, BioPerformance Certified, ≥99% (titration), suitable for insect cell culture, suitable for plant cell culture

84429

Sigma-Aldrich

Hydrochloric acid solution, ~6 M in H₂O, for amino acid analysis

204439

Sigma-Aldrich

Sodium chloride, 99.999% trace metals basis

186198

Sigma-Aldrich

tert-Butyllithium solution, 1.7 M in pentane

450006

Sigma-Aldrich

Sodium chloride, AnhydroBeads^™, −10 mesh, 99.999% trace metals basis

94439

Sigma-Aldrich

tert-Butyllithium solution, 1.6-3.2 M in heptane

S0817

Sigma-Aldrich

Sodium chloride solution, 0.85%

451940

Sigma-Aldrich

Sodium chloride-³⁵Cl, 99 atom % ³⁵Cl

378860

Sigma-Aldrich

Sodium chloride, random crystals, optical grade, 99.9% trace metals basis

H9892

Sigma-Aldrich

Hydrochloric acid solution, 1.0 N, BioReagent, suitable for cell culture

S5150

Sigma-Aldrich

Sodium chloride solution, 5 M in H₂O, BioReagent, for molecular biology, suitable for cell culture

H1758

Sigma-Aldrich

Hydrochloric acid, 36.5-38.0%, BioReagent, for molecular biology

S7653

Sigma-Aldrich

Sodium chloride, BioXtra, ≥99.5% (AT)

S6150

Sigma-Aldrich

Sodium chloride, tablet

S8776

Sigma-Aldrich

Sodium chloride solution, 0.9% in water, BioXtra, suitable for cell culture

S5886

Sigma-Aldrich

Sodium chloride, BioReagent, suitable for cell culture, suitable for insect cell culture, suitable for plant cell culture, ≥99%

S1679

Sigma-Aldrich

Sodium chloride, meets analytical specification of Ph. Eur., BP, USP, 99.0-100.5%

S6546

Sigma-Aldrich

Sodium chloride solution, 5 M

2104

Supelco

Hydrochloric acid solution, volumetric, 0.1 M HCl (0.1N), endotoxin free

S3014

Sigma-Aldrich

Sodium chloride, for molecular biology, DNase, RNase, and protease, none detected, ≥99% (titration)

71386

Sigma-Aldrich

Sodium chloride solution, BioUltra, for molecular biology, ~5 M in H₂O

71376

Sigma-Aldrich

Sodium chloride, BioUltra, for molecular biology, ≥99.5% (AT)

708860

Sigma-Aldrich

Potassium hydride, in paraffin

255793

Sigma-Aldrich

Sodium phosphate dibasic, 99.95% trace metals basis

244864

Sigma-Aldrich

Potassium, chunks (in mineral oil), 98% trace metals basis

296090

Sigma-Aldrich

Hexane, anhydrous, 95%