Highly sensitive and selective optical detection of lead(ii) using a label-free fluorescent aptasensor

RSC Advances ◽  
2016 ◽  
Vol 6 (93) ◽  
pp. 90300-90304 ◽  
Author(s):  
Yafei Huang ◽  
Jiao Yan ◽  
Zongzhuang Fang ◽  
Chenghui Zhang ◽  
Wenhui Bai ◽  
...  
Keyword(s):  
Optical Detection ◽  
Label Free ◽  
Highly Sensitive ◽  
Fluorescent Aptasensor

Configurations and measurement principles of a label-free fluorescence aptamer-based PG assay for Pb2+ detection.

A highly sensitive, simple and label-free fluorescent aptasensor for tobramycin sensing based on PicoGreen intercalation into DNA duplex regions of three-way junction origami

2021 ◽  
Vol 160 ◽  
pp. 105657
Author(s):  
Zahra Khajavian ◽  
Masoomeh Esmaelpourfarkhani ◽  
Mohammad Ramezani ◽  
Mona Alibolandi ◽  
Khalil Abnous ◽  
...  
Keyword(s):  
Label Free ◽  
Dna Duplex ◽  
Highly Sensitive ◽  
Fluorescent Aptasensor

A label-free fluorescent aptasensor based on HCR and G-quadruplex DNAzymes for the detection of prostate-specific antigen

The Analyst ◽  
2021 ◽  
Author(s):  
Ruirui Zhao ◽  
Lu Zhao ◽  
Haidi Feng ◽  
Xiaoliang Chen ◽  
Huilin Zhang ◽  
...  
Keyword(s):  
Prostate Specific Antigen ◽  
Specific Antigen ◽  
Label Free ◽  
Fluorescence Sensing ◽  
Sensing Platforms ◽  
G Quadruplex ◽  
Fluorescent Aptasensor

Fluorescence sensing platforms based on HCR and G-quadruplex DNAzyme amplification strategies for the detection of prostate-specific antigen.

scholarly journals Optical Monitoring of the Production Quality of Si-Nanoribbon Chips Intended for the Detection of ASD-Associated Oligonucleotides

Micromachines ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 147
Author(s):  
Kristina A. Malsagova ◽  
Tatyana O. Pleshakova ◽  
Vladimir P. Popov ◽  
Igor N. Kupriyanov ◽  
Rafael A. Galiullin ◽  
...  
Keyword(s):  
Production Quality ◽  
Autism Spectrum ◽  
Covalent Immobilization ◽  
Biological Macromolecules ◽  
Label Free ◽  
Raman Scattering Spectroscopy ◽  
Dna Oligonucleotides ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

Gas-phase etching and optical lithography were employed for the fabrication of a silicon nanoribbon chip (Si-NR chip). The quality of the so-fabricated silicon nanoribbons (Si-NRs) was monitored by optical Raman scattering spectroscopy. It was demonstrated that the structures of the Si-NRs were virtually defect-free, meaning they could be used for highly sensitive detection of biological macromolecules. The Si-NR chips were then used for the highly sensitive nanoelectronics detection of DNA oligonucleotides (oDNAs), which represent synthetic analogs of 106a-5p microRNA (miR-106a-5p), associated with the development of autism spectrum disorders in children. The specificity of the analysis was attained by the sensitization of the Si-NR chip sur-face by covalent immobilization of oDNA probes, whose nucleotide sequence was complementary to the known sequence of miR-106a-5p. The use of the Si-NR chip was demonstrated to al-low for the rapid label-free real-time detection of oDNA at ultra-low (~10−17 M) concentrations.

Label-Free Highly Sensitive Hybrid Plasmonic Biosensor for the Detection of DNA Hybridization

2017 ◽  
Vol 35 (22) ◽  
pp. 4851-4858 ◽  
Author(s):  
Mohamed Farhat O. Hameed ◽  
Ahmed Samy Saadeldin ◽  
Essam M. A. Elkaramany ◽  
Salah S. A. Obayya
Keyword(s):  
Dna Hybridization ◽  
Label Free ◽  
Highly Sensitive

Label-free and noninvasive optical detection of the distribution of nanometer-size mitochondria in single cells

2011 ◽  
Vol 16 (6) ◽  
pp. 067003 ◽  
Author(s):  
Xuantao Su ◽  
Yuanyuan Qiu ◽  
Leah Marquez-Curtis ◽  
Manisha Gupta ◽  
Clarence E. Capjack ◽  
...  
Keyword(s):  
Single Cells ◽  
Optical Detection ◽  
Label Free ◽  
Nanometer Size
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