Bioinspired nanophotosensitizers: synthesis and characterization of porphyrin–noble metal nanoparticle conjugates

2016 ◽  
Vol 40 (1) ◽  
pp. 724-731 ◽  
Author(s):  
Jayeeta Bhaumik ◽  
Gitanjali Gogia ◽  
Seema Kirar ◽  
Lekshmi Vijay ◽  
Neeraj S. Thakur ◽  
...  
Keyword(s):  
Metal Nanoparticles ◽  
Noble Metal ◽  
Metal Nanoparticle ◽  
Noble Metal Nanoparticles ◽  
Synthesis And Characterization

Conjugatable and compact porphyrinic photosensitizer nanoparticle conjugates were developed through rational synthesis followed by conjugation with noble metal nanoparticles.

Eco-Fabrication of Metal Nanoparticle Related Materials by Home Electric Appliances

2009 ◽  
Vol 620-622 ◽  
pp. 185-188 ◽  
Author(s):  
Yamato Hayashi ◽  
Masahiro Inoue ◽  
Ichitito Narita ◽  
Katsuaki Suganuma ◽  
Hirotsugu Takizawa
Keyword(s):  
Metal Oxides ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Metal Nanoparticle ◽  
Metal Particles ◽  
Noble Metal Nanoparticles ◽  
Strong Reduction ◽  
Noble Metal Oxides ◽  
Ecology And Economy ◽  
Suitable Process

Applications of various noble metal nanoparticles were investigated for newly, ecology and economy home electric appliances (microwave, ultrasonic) used system. Noble metal oxides have merit in metal particles fabrication, as one of these example example, there are decomposed by only heating in air. That is, noble metal oxide don't use strong reduction atmosphere. This reduction is ecologically clean, because many noble metal oxides are not toxic and during decomposition O2 is evolved. We have reduced noble metal oxides by microwave and ultrasound, and tried to fabricate noble metal nanoparticles, and investigated various processing. These energy are widely used by home electric appliances. By choosing suitable process and conditions, it is reasonable to expect that home electric appliances ecology and economy fabrications can be extended to obtain simply various noble metal nanoparticles related materials.

scholarly journals Synthesis and characterization of fluorescence-labelled silica core-shell and noble metal-decorated ceria nanoparticles

2014 ◽  
Vol 5 ◽  
pp. 2413-2423 ◽  
Author(s):  
Rudolf Herrmann ◽  
Markus Rennhak ◽  
Armin Reller
Keyword(s):  
Noble Metal ◽  
Noble Metals ◽  
Synthetic Methods ◽  
Noble Metal Nanoparticles ◽  
Synthesis And Characterization ◽  
Core Shell ◽  
Ceria Nanoparticles ◽  
Thiol Groups ◽  
Silica Core

The present review article covers work done in the cluster NPBIOMEM in the DFG priority programme SPP 1313 and focuses on synthesis and characterization of fluorescent silica and ceria nanoparticles. Synthetic methods for labelling of silica and polyorganosiloxane/silica core–shell nanoparticles with perylenediimide derivatives are described, as well as the modification of the shell with thiol groups. Photometric methods for the determination of the number of thiol groups and an estimate for the number of fluorescent molecules per nanoparticles, including a scattering correction, have been developed. Ceria nanoparticles decorated with noble metals (Pt, Pd, Rh) are models for the decomposition products of automobile catalytic converters which appear in the exhaust gases and finally interact with biological systems including humans. The control of the degree of agglomeration of small ceria nanoparticles is the basis for their synthesis. Almost monodisperse agglomerates (40 ± 4–260 ± 40 nm diameter) can be prepared and decorated with noble metal nanoparticles (2–5 nm diameter). Fluorescence labelling with ATTO 647N gave the model particles which are now under biophysical investigation.

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