Fabrication of chitosan-silver nanoparticle hybrid 3D porous structure as a SERS substrate for biomedical applications

2013 ◽  
Vol 273 ◽  
pp. 179-183 ◽  
Author(s):  
Gyeong-Bok Jung ◽  
Ji-Hye Kim ◽  
Jin Sik Burm ◽  
Hun-Kuk Park
Keyword(s):  
Porous Structure ◽  
Silver Nanoparticle ◽  
Biomedical Applications ◽  
Sers Substrate

scholarly journals Surface Properties and Biocompatibility of Anodized Titanium with a Potential Pretreatment for Biomedical Applications

Metals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1090
Author(s):  
Bai-Hung Huang ◽  
Yi-Jung Lu ◽  
Wen-Chien Lan ◽  
Muhammad Ruslin ◽  
Hung-Yang Lin ◽  
...  
Keyword(s):  
Porous Structure ◽  
Biomedical Applications ◽  
Grazing Incidence ◽  
Acid Pretreatment ◽  
Osteoblast Cells ◽  
In Vitro Biocompatibility ◽  
Porous Ti ◽  
Diphenyltetrazolium Bromide ◽  
Anodized Titanium

The effects of anodized titanium (Ti) with a potential hydrogen fluoride (HF) acid pretreatment through cathodization on the formation of nano-porous Ti dioxide (TiO2) layer were characterized using field-emission scanning electron microscopy, grazing incidence X-ray diffractometer, and contact angle goniometer. The biocompatibility was determined by 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) test. Analytical results found that a well-aligned nano-porous structure was formed on the anodized Ti surface with HF pretreatment concentration above 0.5%. Microstructure of the nano-porous Ti dioxide surface generated by anodization with HF pretreatment was composed of anatase and rutile phases, while the anodized Ti sample with HF pretreatment concentration of 0.5% presented excellent hydrophilicity surface. An in-vitro biocompatibility also indicated that osteoblast cells grown on the surface of the anodized Ti sample with HF pretreatment increased with the increase of culture time. The filopodia of osteoblast cells not only adhered flat, but also tightly grabbed the nano-porous structure for promoting cell adhesion and proliferation. Therefore, the anodized Ti with HF pretreatment can form a functionalized surface with great biocompatibility for biomedical applications, particularly for dental implants.

scholarly journals Hydrogel-Silver Nanoparticle Composites for Biomedical Applications

2020 ◽  
Vol 65 (5) ◽  
pp. 446
Author(s):  
O. Nadtoka ◽  
N. Kutsevol ◽  
T. Bezugla ◽  
P. Virych ◽  
A. Naumenko
Keyword(s):  
Silver Nanoparticle ◽  
Biomedical Applications ◽  
Polymer Network ◽  
Cross Linking ◽  
Polyacrylamide Hydrogels ◽  
Photochemical Generation ◽  
Vis Spectroscopy ◽  
Swelling Capacity ◽  
Swelling Studies ◽  
Nanoparticle Composites

Polyacrylamide and dextran-graft-polyacrylamide hydrogels are prepared and used as nanoreactors and networks for the synthesis of silver nanoparticles (AgNPs). Photochemical generation of AgNPs is carried out under UV-irradiation of Ag+ ions in swollen hydrogels of different cross-linking densities. The obtained hydrogels and hydrogel/AgNPs composites are characterized by TEM, FTIR, and UV–Vis spectroscopy. Swelling studies have shown a relationship between the structure of the hydrogels and their ability to swell. It is shown that the presence of AgNPs in the polymer network leads to a decrease of the swelling capacity. An increase in the cross-linking density leads to an expansion of the AgNPs size distribution for both types of hydrogels. All synthesized hydrogel-silver nanoparticle composites have shown a high activity in the growth retardation of Staphylococcus aureus microorganisms.

Silver nanoparticle-incorporated ultralong hydroxyapatite nanowires with internal reference as SERS substrate for trace environmental pollutant detection

2018 ◽  
Vol 42 (22) ◽  
pp. 17950-17957
Author(s):  
Lei Zhang ◽  
Yongquan Luo ◽  
Yameng Zhao ◽  
Boxin Guan ◽  
Lingyi Zhang ◽  
...  
Keyword(s):  
Silver Nanoparticle ◽  
Environmentally Friendly ◽  
Environmental Pollutant ◽  
Sers Substrate ◽  
Internal Reference ◽  
Sers Substrates ◽  
Pollutant Detection

Silver nanoparticle-incorporated HAPNWs as SERS substrates exhibit unique characteristics including stability, convenience and simple and environmentally friendly preparation.

Self-assembled silver nanoparticle monolayer on glassy carbon: an approach to SERS substrate

2007 ◽  
Vol 38 (11) ◽  
pp. 1444-1448 ◽  
Author(s):  
Hongjun Chen ◽  
Yuling Wang ◽  
Jianying Qu ◽  
Shaojun Dong
Keyword(s):  
Glassy Carbon ◽  
Silver Nanoparticle ◽  
Sers Substrate ◽  
Self Assembled

Nanoplasmonic Au nanodot arrays as an SERS substrate for biomedical applications

2013 ◽  
Vol 282 ◽  
pp. 161-164 ◽  
Author(s):  
Gyeong Bok Jung ◽  
Young Min Bae ◽  
Young Ju Lee ◽  
Seong Hee Ryu ◽  
Hun-Kuk Park
Keyword(s):  
Biomedical Applications ◽  
Sers Substrate ◽  
Nanodot Arrays

Silver Nanoparticle Arrays on a DVD-Derived Template: An easy&cheap SERS Substrate

Plasmonics ◽  
2011 ◽  
Vol 6 (4) ◽  
pp. 725-733 ◽  
Author(s):  
Giuseppe Giallongo ◽  
Roberto Pilot ◽  
Christian Durante ◽  
Gian Andrea Rizzi ◽  
Raffaella Signorini ◽  
...  
Keyword(s):  
Silver Nanoparticle ◽  
Sers Substrate ◽  
Nanoparticle Arrays

scholarly journals Silver Nanoparticle-Embedded Thin Silica-Coated Graphene Oxide as an SERS Substrate

Nanomaterials ◽  
2016 ◽  
Vol 6 (10) ◽  
pp. 176 ◽  
Author(s):  
Xuan-Hung Pham ◽  
Eunil Hahm ◽  
Hyung-Mo Kim ◽  
Seongbo Shim ◽  
Tae Kim ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Silver Nanoparticle ◽  
Sers Substrate
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