Identifying Exogenous DNA in Liquid Foods by Gold Nanoparticles: Potential Applications in Traceability

2021 ◽  
Author(s):  
Shansen Ding ◽  
Luyang Wang ◽  
Zhiyu He ◽  
Zhe Sui ◽  
Guoqing Wang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Exogenous Dna ◽  
Liquid Foods ◽  
Potential Applications

scholarly journals Biosynthesis and Potential Applications of Silver and Gold Nanoparticles and Their Chitosan-Based Nanocomposites in Nanomedicine

2018 ◽  
Vol 2018 ◽  
pp. 1-13 ◽  
Author(s):  
Haliza Katas ◽  
Noor Zianah Moden ◽  
Chei Sin Lim ◽  
Terence Celesistinus ◽  
Jie Yee Chan ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Metallic Nanoparticles ◽  
Cost Effective ◽  
One Pot ◽  
Silver And Gold Nanoparticles ◽  
Stabilizing Agents ◽  
Cost Effective Method ◽  
Multistep Process ◽  
Potential Applications ◽  
Biological Sources

Biosynthesized or biogenic metallic nanoparticles, particularly silver and gold nanoparticles (AgNPs and AuNPs, respectively), have been increasingly used because of their advantages, including high stability and loading capacity; moreover, these nanoparticles are synthesized using a green and cost-effective method. Previous studies have investigated reducing and/or stabilizing agents from various biological sources, including plants, microorganisms, and marine-derived products, using either a one-pot or a multistep process at different conditions. In addition, extensive studies have been performed to determine the biological or pharmacological effects of these nanoparticles, such as antimicrobial, antitumor, anti-inflammatory, and antioxidant effects. In the recent years, chitosan, a natural cationic polysaccharide, has been increasingly investigated as a reducing and/or stabilizing agent in the synthesis of biogenic metallic nanoparticles with potential applications in nanomedicine. Here, we have reviewed the mechanism of biosynthesis and potential applications of AgNPs and AuNPs and their chitosan-mediated nanocomposites in nanomedicine.

Cancer theranosis using mono-disperse, mesoporous gold nanoparticles obtained via a robust, high-yield synthetic methodology

RSC Advances ◽  
2016 ◽  
Vol 6 (16) ◽  
pp. 13554-13561 ◽  
Author(s):  
Taeksu Lee ◽  
Doyeon Bang ◽  
Yong Wook Chang ◽  
Yuna Choi ◽  
Kwang Yeol Park ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
High Yield ◽  
Synthetic Methodology ◽  
Facile Synthesis ◽  
Potential Applications

Here, we introduce the facile synthesis of scalable, mono-disperse, mesoporous gold nanoparticles (MPGNs) with an acidic emulsification method, which exhibit many attractive nanoplasmonic features for potential applications in many fields.

Nanodiamonds and gold nanoparticles to obtain a hybrid nanostructure with potential applications in biomedicine

2018 ◽  
Vol 29 (43) ◽  
pp. 435101 ◽  
Author(s):  
Seidy Pedroso-Santana ◽  
Noralvis Fleitas-Salazar ◽  
Andrei Sarabia-Sainz ◽  
Erika Silva-Campa ◽  
Araceli Angulo-Molina ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Hybrid Nanostructure ◽  
Potential Applications

scholarly journals Transplacental Gene Delivery (TPGD) as a Noninvasive Tool for Fetal Gene Manipulation in Mice

2019 ◽  
Vol 20 (23) ◽  
pp. 5926 ◽  
Author(s):  
Nakamura ◽  
Watanabe ◽  
Ando ◽  
Ishihara ◽  
Sato
Keyword(s):  
Gene Delivery ◽  
Nucleic Acids ◽  
Myocardial Cells ◽  
Transcription Activator ◽  
Exogenous Dna ◽  
Cell Functions ◽  
Fetal Tissues ◽  
Potential Applications ◽  
Pregnant Mice ◽  
Basic Studies

Transplacental gene delivery (TPGD) is a technique for delivering nucleic acids to fetal tissues via tail-vein injections in pregnant mice. After transplacental transport, administered nucleic acids enter fetal circulation and are distributed among fetal tissues. TPGD was established in 1995 by Tsukamoto et al., and its mechanisms, and potential applications have been further characterized since. Recently, discoveries of sequence specific nucleases, such as zinc-finger nuclease (ZFN), transcription activator-like effector nucleases (TALEN), and clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein-9 nuclease (Cas9) (CRISPR/Cas9), have revolutionized genome editing. In 2019, we demonstrated that intravenous injection of plasmid DNA containing CRISPR/Cas9 produced indels in fetal myocardial cells, which are comparatively amenable to transfection with exogenous DNA. In the future, this unique technique will allow manipulation of fetal cell functions in basic studies of fetal gene therapy. In this review, we describe developments of TPGD and discuss their applications to the manipulation of fetal cells.

Laser-controlled precipitation of gold nanoparticles in silicate glasses

2003 ◽  
Vol 18 (9) ◽  
pp. 2097-2100 ◽  
Author(s):  
Xiongwei Jiang ◽  
Jianrong Qiu ◽  
Huidan Zeng ◽  
Congshan Zhu
Keyword(s):  
Heat Treatment ◽  
Gold Nanoparticles ◽  
Femtosecond Laser ◽  
Optical Switches ◽  
Sample Heat ◽  
Selective Precipitation ◽  
Heat Treated ◽  
All Optical ◽  
Potential Applications ◽  
Controlled Precipitation

We report on the observation of space-selective precipitation of gold nanoparticles in Au2O-doped silicate glass by a method of irradiation with an 800-nm femtosecond laser and further heat treatment. The irradiated region of the glass first became gray in color after irradiation with the femtosecond laser and then turned red after further heat treatment at around 520 °C, indicating that gold nanoparticles have precipitated in the irradiated region of the glass. A possible mechanism has been suggested that the Au+ ions in the region irradiated are reduced to Au0 atoms by the femtosecond laser, and then the Au0 atoms accumulate to form gold nanoparticles with the glass sample heat treated. The observed phenomenon should have potential applications in the fabrication of ultrafast all-optical switches.

Synthesis, characterization, DNA interaction and potential applications of gold nanoparticles functionalized with Acridine Orange fluorophores

2011 ◽  
Vol 40 (16) ◽  
pp. 4190 ◽  
Author(s):  
Tarita Biver ◽  
Nurettin Eltugral ◽  
Andrea Pucci ◽  
Giacomo Ruggeri ◽  
Alberto Schena ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Acridine Orange ◽  
Dna Interaction ◽  
Potential Applications

The pH role about synthesis, distribution and potential applications of gold nanoparticles

2020 ◽  
Vol 4 (1/2) ◽  
pp. 120
Author(s):  
Miguel Ángel Antonio Ibáñez Hernández ◽  
Blanca Estela Chávez Sandoval ◽  
José Abraham Balderas López ◽  
Francisco García Franco ◽  
Anatolio Martínez Jiménez ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Potential Applications

BIOACTIVE GLASS SHELL GROWTH OF A Si–Na–Ca–P LAYER ON GOLD NANOPARTICLES FUNCTIONALIZED WITH MERCAPTOPROPYLTRIMETHYLOXYSILANE–SILICATE–TETRAETHYLOTHOSILICATE

2009 ◽  
Vol 16 (01) ◽  
pp. 37-42 ◽  
Author(s):  
CHIH-KUANG WANG ◽  
SZU-HSIEN CHEN ◽  
WAN-YUN LI ◽  
CHERN-HSIUNG LAI ◽  
WEN-CHENG CHEN
Keyword(s):  
Gold Nanoparticles ◽  
Calcium Phosphate ◽  
Shell Growth ◽  
Scanning Transmission Electron Microscope ◽  
Glass Shell ◽  
Dental Resins ◽  
Transmission Electron ◽  
Nanoparticle Suspensions ◽  
Scanning Transmission ◽  
Potential Applications

Calcium phosphate and silicate-modified gold surfaces have potential applications in orthopedic and dental reconstruction, especially when combined with bone cement or dental resins. The aim of this study was to evaluate the formation of a Si – Na – Ca – P glass system nanoshell on functionalized gold nanoparticles. Stable gold nanoparticle suspensions were prepared by controlled reduction of HAuCl 4 using the sodium citrate method to obtain a nanogold-mercaptopropyltrimethyloxysilane (MPTS)–silicate–tetraethylothosilicate (TEOS)-capped particle solution. The nanoshells were formed when directly reacted with a 10-4 M calcium phosphate ion solution. The median nanoparticle diameter was observed to be 15 nm. The MPTS–silicate–TEOS–functionalized nanoshell more effectively formed a glass shell as compared with a nonsilicate nanoshell. The changes in the surface morphology and composition were observed by a scanning transmission electron microscope equipped with energy-dispersive X-ray spectroscopy. As seen using EDS, the nanoshell was in a glass phase with CaO -poor layers.

Effect of Inert Annealing Gases on Morphology of Gold Nanoparticles Produced by Using Rapid Thermal Annealing

2019 ◽  
Vol 57 ◽  
pp. 7-16
Author(s):  
Tung Thanh Bui ◽  
Tien Minh Huynh ◽  
Thuy Thanh Tieu ◽  
Chien Mau Dang
Keyword(s):  
Gold Nanoparticles ◽  
Electrical Properties ◽  
Thermal Annealing ◽  
Rapid Thermal Annealing ◽  
Metallic Nanoparticles ◽  
Strong Influence ◽  
Silicon Substrates ◽  
Optical And Electrical Properties ◽  
Potential Applications ◽  
Spherical Gold Nanoparticles

Metallic nanoparticles have various potential applications. Recent studies have showed that their morphology had a strong influence on their optical and electrical properties. In this work, rapid thermal annealing was used to produce gold nanoparticles on silicon substrates. Morphology control of the gold nanoparticles was made by changing inert annealing gases. Spherical gold nanoparticles were obtained with nitrogen while hemispherical gold nanoparticles were formed with argon.

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