Gold nanoparticle based fluorescent oligonucleotide probes for imaging and therapy in living systems

The Analyst ◽  
2019 ◽  
Vol 144 (4) ◽  
pp. 1052-1072 ◽  
Author(s):  
Yanjing Yang ◽  
Shian Zhong ◽  
Kemin Wang ◽  
Jin Huang

Gold nanoparticles (AuNPs) with unique physical and chemical properties have become an integral part of research in nanoscience.

2016 ◽  
Vol 89 (2) ◽  
pp. 199-202 ◽  
Author(s):  
Lucian Mocan ◽  
Cristian T. Matea ◽  
Dana Bartos ◽  
Ofelia Mosteanu ◽  
Teodora Pop ◽  
...  

 Recent research suggests that nanotechnologies may lead to the development of novel cancer treatment. Gold nanoparticles with their unique physical and chemical properties hold great hopes for the development of thermal-based therapies against human malignancies. This review will focus on various strategies that have been developed to use gold nanoparticles as photothermal agents against human cancers.


2021 ◽  
Vol 13 (8) ◽  
pp. 1474-1478
Author(s):  
HeeJin Noh ◽  
Gwang-Bum Im ◽  
Taekyung Yu ◽  
Suk Ho Bhang

Control of the size and shape of nanoparticles significantly impacts the ability to control their physical and chemical properties. In this paper, we introduce a technique to split large nanoparticles into smaller ones. After the addition of ascorbic acid (AA), 50 nm-sized gold (Au) nanoparticles in the form of polycrystals were split into nanoparticles with sizes of 10 nm. We believe that AA plays a critical role in breaking down the Au particles. Additionally, this technique can be used to synthesize small AuPt bimetallic nanoparticles with a small amount of Pt on their surface showing that this reaction could help in the formation of a variety of small Au-based bimetallic nanoparticles.


1966 ◽  
Vol 24 ◽  
pp. 101-110
Author(s):  
W. Iwanowska

In connection with the spectrophotometric study of population-type characteristics of various kinds of stars, a statistical analysis of kinematical and distribution parameters of the same stars is performed at the Toruń Observatory. This has a twofold purpose: first, to provide a practical guide in selecting stars for observing programmes, second, to contribute to the understanding of relations existing between the physical and chemical properties of stars and their kinematics and distribution in the Galaxy.


2017 ◽  
pp. 31-43
Author(s):  
Berta Ratilla ◽  
Loreme Cagande ◽  
Othello Capuno

Organic farming is one of the management strategies that improve productivity of marginal uplands. The study aimed to: (1) evaluate effects of various organic-based fertilizers on the growth and yield of corn; (2) determine the appropriate combination for optimum yield; and (3) assess changes on the soil physical and chemical properties. Experiment was laid out in Randomized Complete Block Design, with 3 replications and 7 treatments, namely; T0=(0-0-0); T1=1t ha-1 Evans + 45-30-30kg N, P2O5, K2O ha-1; T2=t ha-1 Wellgrow + 45-30-30kg N, P2O5, K2O ha-1; T3=15t ha-1 chicken dung; T4=10t ha-1 chicken dung + 45-30-30kg N, P2O5, K2O ha-1; T5=15t ha-1 Vermicast; and T6=10t ha-1 Vermicast + 45-30-30kg N, P2O5, K2O ha-1. Application of organic-based fertilizers with or without inorganic fertilizers promoted growth of corn than the control. But due to high infestation of corn silk beetle(Monolepta bifasciata Horns), its grain yield was greatly affected. In the second cropping, except for Evans, any of these fertilizers applied alone or combined with 45-30-30kg N, P2O5, K2O ha-1 appeared appropriate in increasing corn earyield. Soil physical and chemical properties changed with addition of organic fertilizers. While bulk density decreased irrespective of treatments, pH, total N, available P and exchangeable K generally increased more with chicken dung application.


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