Synthesis of polycation with gemini structure and detection of DNA by resonance light scattering

Zou, Qichao; Chen, Hao; Yu, Haibin; Zhang, Jinzhi; Chai, Shugen; Wu, Limin

doi:10.1016/j.snb.2009.12.043

Cited by 10 publications

(4 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, because RRS assays have many other advantages such as low sample volume, simple operation, high sensitivity and selectivity, this method has been widely applied to macromolecule detection (15)(16)(17)(18)(19) and the study of interactions between DNA and other substances such as dyes (20), drugs (21), proteins (22), metal ions (23) and surfactants (24). In addition, recent progress in the analysis of nucleic acids using the RRS method (25)(26)(27) has increased the reliability and maturity of this approach.…”

Section: Introductionmentioning

confidence: 99%

Study on interactions of aminoglycoside antibiotics with calf thymus DNA and determination of calf thymus DNA via the resonance Rayleigh scattering technique

Qiao

Shi

et al. 2015

Luminescence

View full text Add to dashboard Cite

A simple and sensitive resonance Rayleigh scattering (RRS) spectra method was developed for the determination of calf thymus DNA (ctDNA). The enhanced RRS signals were based on the interactions between ctDNA and aminoglycoside antibiotics (AGs) including kanamycin (KANA), tobramycin (TOB), gentamicin (GEN) and neomycin (NEO) in a weakly acidic medium (pH 3.3-5.7). Parameters influencing the method were investigated. Under optimum conditions, increments in the scattering intensity (∆I) were directly proportional to the concentration of ctDNA over certain ranges. The detection limit ranged from 12.2 to 16.9 ng/mL. Spectroscopic methods, including RRS spectra, absorption spectra and circular dichroism (CD) spectroscopy, coupled with thermo-denaturation experiments were used to study the interactions, indicating that the interaction between AGs with ctDNA was electrostatic binding mode.

show abstract

Section: Introductionmentioning

confidence: 99%

Study on interactions of aminoglycoside antibiotics with calf thymus DNA and determination of calf thymus DNA via the resonance Rayleigh scattering technique

Qiao

Shi

et al. 2015

Luminescence

View full text Add to dashboard Cite

show abstract

“…Gemini surfactants are a relatively widely used new type of surfactant. They have a lower critical micelle concentration (CMCC) and a higher ability to reduce the oil/water interfacial tension and are comparable to conventional surfactants [27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Hexamethylene‐1,3‐bis(cetyldimethylammonium bromide) protected low‐toxicity ZnSe quantum dots as fluorescent probe for proteins

Zhong

Deng

et al. 2015

Micro & Nano Letters

View full text Add to dashboard Cite

Hexamethylene-1,3-bis(cetyldimethylammonium bromide) (G 16-6-16) protected low-toxicity ZnSe quantum dots (QDs) were successfully synthesised and used as fluorescence probe to detect proteins such as bovine serum albumin (BSA). This method is simple, fast, selective and sensitive. Surfactant G 16-6-16 can interact with proteins through hydrophobic effect, thus leading to the fluorescence quenching of G 16-6-16 protected ZnSe QDs nanometre material. The fluorescence intensity of G 16-6-16 protected ZnSe QDs was linearly proportional to BSA over a concentration range from 0 to 80 nM with a correlation coefficient of 0.993. The detection limit was 0.04 nM. This method was successfully applied to determine BSA in urine samples which shows the good application value of this nanometre material.

show abstract

“…Many RRS spectra meaurements are based on systems consisting of DNA with surfactants. [21][22][23][24] Recently, the interactions between DNA and surfactants have attracted immense interest. 25 As a cationic surfactant, cetyltrimethyl ammonium bromide (CTAB) has both a hydrophobic group and a positively charged group, and it can bind with DNA by electrostatic attraction.…”

Section: Introductionmentioning

confidence: 99%

A resonance Rayleigh scattering detection of DNA hybridization based on interaction between DNA and surfactants

Cai

Luo

et al. 2013

Anal. Methods

View full text Add to dashboard Cite

Synthesis of polycation with gemini structure and detection of DNA by resonance light scattering

Cited by 10 publications

References 55 publications

Study on interactions of aminoglycoside antibiotics with calf thymus DNA and determination of calf thymus DNA via the resonance Rayleigh scattering technique

Study on interactions of aminoglycoside antibiotics with calf thymus DNA and determination of calf thymus DNA via the resonance Rayleigh scattering technique

Hexamethylene‐1,3‐bis(cetyldimethylammonium bromide) protected low‐toxicity ZnSe quantum dots as fluorescent probe for proteins

A resonance Rayleigh scattering detection of DNA hybridization based on interaction between DNA and surfactants

Contact Info

Product

Resources

About