Ni–Co alloy nanostructures anchored on mesoporous silica nanoparticles for non-enzymatic glucose sensor applications

RSC Advances ◽  
2015 ◽  
Vol 5 (71) ◽  
pp. 57804-57814 ◽  
Author(s):  
M. Ranjani ◽  
Y. Sathishkumar ◽  
Yang Soo Lee ◽  
Dong Jin Yoo ◽  
Ae Rhan Kim ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Glucose Sensor ◽  
Reduction Method ◽  
Chemical Reduction ◽  
Mesoporous Silica Nanoparticles ◽  
Chemical Reduction Method ◽  
Sensor Applications ◽  
Simple Chemical ◽  
Active Channels

Uniform sized Ni–Co alloy nanoparticles were effectively confined over the active channels of mesoporous silica nanoparticles (MSN) using a simple chemical reduction method, and the resultant nanostructures exhibited a spherical configuration with a mean diameter of 5 nm.

Silver nanoplates and nanowires by a simple chemical reduction method

2011 ◽  
Vol 86 (1) ◽  
pp. 87-92 ◽  
Author(s):  
Zaheer Khan ◽  
Javed Ijaz Hussain ◽  
Sunil Kumar ◽  
Athar Adil Hashmi
Keyword(s):  
Reduction Method ◽  
Chemical Reduction ◽  
Chemical Reduction Method ◽  
Silver Nanoplates ◽  
Simple Chemical

INVESTIGATION OF SHAPE CONTROLLED SILVER NANOPLATES BY A SIMPLE CHEMICAL REDUCTION METHOD

NANO ◽  
2013 ◽  
Vol 08 (03) ◽  
pp. 1350030 ◽  
Author(s):  
ERIC FRIBOURG-BLANC ◽  
DUNG THI MY DANG ◽  
TUYET THI THU LE ◽  
CHINH DUNG TRINH ◽  
THANH THI NU THANH ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Reduction Method ◽  
Chemical Reduction ◽  
Relative Concentration ◽  
Trisodium Citrate ◽  
Edge Length ◽  
Ambient Conditions ◽  
Chemical Reduction Method ◽  
Vis Spectroscopy ◽  
Simple Chemical

This paper discusses the function of hydrogen peroxide and trisodium citrate (TSC) in the synthesis of silver ( Ag ) nanoplates through a simple chemical reduction method in ambient conditions. By this method, high purity Ag nanoplates were successfully generated (up to 100%). It was found that the amounts of hydrogen peroxide and TSC added to the solution are key to controlling the shape of Ag nanoparticles from spherical nanoparticles to hexagonal nanoplates and triangular nanoplates, depending on the Ag -to-hydrogen peroxide ratio and the Ag -to-TSC ratio used. This unique shape evolution process was carefully followed by a combination of ultraviolet-visible (UV-Vis) spectroscopy and transmission electron microscopy (TEM). The mean edge length of the triangular nanoplates varies from 65 nm to 100 nm. Polyvinyl pyrrolidone (PVP) is shown to increase the in-plane dimensions of the nanoplates as its relative concentration to Ag increases.

Synthesis and Characterization of Three-Dimensional (3D) Flowerlike CuO by a Simple Chemical Reduction Method

2013 ◽  
Vol 328 ◽  
pp. 729-733
Author(s):  
Kun Xiang ◽  
Mei Juan Li ◽  
Dao Ren Gong ◽  
Qiang Guo Luo ◽  
Qiang Shen
Keyword(s):  
Cetyltrimethylammonium Bromide ◽  
Reduction Method ◽  
Copper Chloride ◽  
Chemical Reduction ◽  
Three Dimensional ◽  
Synthesis And Characterization ◽  
Chemical Reduction Method ◽  
X Ray ◽  
Simple Chemical

Three-dimensional (3D) flowerlike CuO structures were prepared successfully by reducing copper chloride (CuCl2·2H2O) aqueous solution in the presence of cetyltrimethylammonium bromide (CTAB). The as-prepared CuO structures were characterized by UV-Vis, X-ray powder diffraction (XRD), FESEM and EDS techniques. The flowerlike CuO structures consisted of Salix leaf-like nanostructures. A possible growth mechanism for the formation of 3D flowerlike CuO structure was proposed. The processes of ripening and directed growing of nanoparticles were most important factors to obtain the 3D flowerlike CuO structures.

Boron-doped reduced graphene oxide-based bimetallic Ni/Fe nanohybrids for the rapid dechlorination of trichloroethylene

2017 ◽  
Vol 4 (3) ◽  
pp. 565-576 ◽  
Author(s):  
Rama Shanker Sahu ◽  
Kartick Bindumadhavan ◽  
Ruey-an Doong
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Reduction Method ◽  
Chemical Reduction ◽  
Ni Nanoparticles ◽  
Chemical Reduction Method ◽  
Boron Doped ◽  
Reduced Graphene ◽  
Simple Chemical

In this study, a simple chemical reduction method for the synthesis of novel and efficient graphene-based bimetallic Fe/Ni nanoparticles was developed for the rapid and effective dechlorination of trichloroethylene (TCE).

Antimicrobial Activity of Silver Nanoparticles Prepared Under an Ultrasonic Field

2011 ◽  
Vol 4 (3) ◽  
pp. 1491-1496
Author(s):  
Umadevi M ◽  
Rani T ◽  
Balakrishnan T ◽  
Ramanibai R
Keyword(s):  
Escherichia Coli ◽  
Antimicrobial Activity ◽  
Silver Nanoparticles ◽  
Reduction Method ◽  
Therapeutic Potential ◽  
Chemical Reduction ◽  
Ultrasonic Field ◽  
Great Promise ◽  
Chemical Reduction Method ◽  
E Coli

Nanotechnology has great promise for improving the therapeutic potential of medicinal molecules and related agents. In this study, silver nanoparticles of different sizes were synthesized in an ultrasonic field using the chemical reduction method with sodium borohydride as a reducing agent. The size effect of silver nanoparticles on antimicrobial activity were tested against the microorganisms Staphylococcus aureus (MTCC No. 96), Bacillus subtilis (MTCC No. 441), Streptococcus mutans (MTCC No. 497), Escherichia coli (MTCC No. 739) and Pseudomonas aeruginosa (MTCC No. 1934). The results shows that B. subtilis, and E. coli were more sensitive to silver nanoparticles and its size, indicating the superior antimicrobial efficacy of silver nanoparticles. 

Recent Advances in Application of Azobenzenes Grafted on Mesoporous Silica Nanoparticles in Controlled Drug Delivery Systems Using Light as External Stimulus

2020 ◽  
Vol 20 (11) ◽  
pp. 1001-1016
Author(s):  
Sandra Ramírez-Rave ◽  
María Josefa Bernad-Bernad ◽  
Jesús Gracia-Mora ◽  
Anatoly K. Yatsimirsky
Keyword(s):  
Drug Delivery ◽  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Drug Delivery Systems ◽  
Mesoporous Silica Nanoparticles ◽  
High Surface ◽  
Delivery Systems ◽  
Surface Reactivity ◽  
External Stimulus ◽  
Recent Advances

Hybrid materials based on Mesoporous Silica Nanoparticles (MSN) have attracted plentiful attention due to the versatility of their chemistry, and the field of Drug Delivery Systems (DDS) is not an exception. MSN present desirable biocompatibility, high surface area values, and a well-studied surface reactivity for tailoring a vast diversity of chemical moieties. Particularly important for DDS applications is the use of external stimuli for drug release. In this context, light is an exceptional alternative due to its high degree of spatiotemporal precision and non-invasive character, and a large number of promising DDS based on photoswitchable properties of azobenzenes have been recently reported. This review covers the recent advances in design of DDS using light as an external stimulus mostly based on literature published within last years with an emphasis on usually overlooked underlying chemistry, photophysical properties, and supramolecular complexation of azobenzenes.

Sign in / Sign up

Export Citation Format

Share Document