TITLE

In situ electrochemical contact angle study of hemoglobin and hemoglobin—Fe3O4 nanocomposites

AUTHOR(S)
Renyun Zhang; Min Song; Xiaomao Li; Zhiqun Guan; Xuemei Wang
PUB. DATE
December 2006
SOURCE
Analytical & Bioanalytical Chemistry;Dec2006, Vol. 386 Issue 7/8, p2075
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The electrochemical redox-induced contact angle changes of hemoglobin droplets in the absence and presence of tetraheptylammonium-capped Fe3O4 nanoparticles have been explored by using in situ electrochemical contact angle measurements. The results indicate that the electrochemical redox process may lead to some structure changes of hemoglobin (Hb), which could further induce the hydrophobic-to-hydrophilic changes of the relative droplets. Our observations demonstrate that hemoglobin could self-assemble on the surface of the functionalized Fe3O4 nanoparticles as Hb–Fe3O4 nanocomposites, which may contribute to much more significant change of the electrochemical redox-induced contact angle values than that with free nano-Fe3O4. These results suggest that in situ electrochemical contact angle measurements could be readily applied as a new and convenient method to detect some specific biological process. [Figure not available: see fulltext.]
ACCESSION #
23150782

 

Related Articles

  • Composite Scaffolds Based on Silver Nanoparticles for Biomedical Applications. Patrascu, Jenel Marian; Nedelcu, Ioan Avram; Sonmez, Maria; Ficai, Denisa; Ficai, Anton; Vasile, Bogdan Stefan; Ungureanu, Camelia; Albu, Madalina Georgiana; Andor, Bogdan; Andronescu, Ecaterina; Rusu, Laura Cristina // Journal of Nanomaterials;10/4/2015, Vol. 2015, p1 

    This paper presents the synthesis, characterisation, and in vitro testing of homogenous and heterogeneous materials containing silver nanoparticles (nanoAg). Three types of antiseptic materials based on collagen (COLL), hydroxyapatite (HA), and collagen/hydroxyapatite (COLL/HA) composite...

  • Hemoglobin co-immobilized with silver–silver oxide nanoparticles on a bare silver electrode for hydrogen peroxide electroanalysis. Wang, Yuan-Hong; Gu, Hai-Ying // Microchimica Acta;Jan2009, Vol. 164 Issue 1/2, p41 

    Hemoglobin (Hb) and silver–silver oxide (Ag–Ag2O) nanoparticles were co-immobilized on a bare silver electrode surface by cyclic voltammetry, and were characterized by UV–vis reflection spectroscopy, scanning electron microscopy, and electrochemical impedance spectroscopy....

  • Biomedical Probes Based on Inorganic Nanoparticles for Electrochemical and Optical Spectroscopy Applications. Yakoh, Abdulhadee; Pinyorospathum, Chanika; Siangproh, Weena; Chailapakul, Orawon // Sensors (14248220);Sep2015, Vol. 15 Issue 9, p21427 

    Inorganic nanoparticles usually provide novel and unique physical properties as their size approaches nanometer scale dimensions. The unique physical and optical properties of nanoparticles may lead to applications in a variety of areas, including biomedical detection. Therefore, current...

  • Microstructural characterization of bamboo. Ray, A.K.; Das, S.K.; Mondal, S.; Ramachandrarao, P. // Journal of Materials Science;Feb2004, Vol. 39 Issue 3, p1055 

    Investigates the potential of bamboo fiber as a reinforcing material for polymer matrix composites. Composition of bamboo; Mechanical and macro/micro structural properties of the Valki variety of bamboo from West Bengal, India; Consideration of bamboo as both macroscopically and microscopically...

  • Atomistic-mesoscale coupled mechanical analysis of polymeric nanofibers. Unnikrishnan, V. U.; Unnikrishnan, G. U.; Reddy, J. N.; Lim, C. T. // Journal of Materials Science;Nov2007, Vol. 42 Issue 21, p8844 

    Theoretical analysis of Poly-( l)-Lactic Acid (PLLA) nanofibers is a necessary step towards designing novel biomedical applications. This paper aims to analyze the mechanical properties of PLLA nanofibers so that optimal scaffolds in tissue engineering applications can be developed. We carry out...

  • Preparation and characterization of antibacterial polymer composites based on poly(vinyl alcohol) and nanoparticulate silver. Tolstov, A. L.; Malanchuk, O. M.; Bey, I. M.; Klimchuk, D. A. // Polymer Journal (18181724);2013, Vol. 35 Issue 4, p343 

    Polymer composite materials with antibacterial properties based on poly(vinyl alcohol), which contain fine biocompatible mineral fillers and silver nanoparticles have been obtained. The method of preparation of polyacrylamide stabilized silver nanoparticles with shape of thin truncated...

  • Direct electrochemical behavior of hemoglobin at surface of Au@Fe3O4 magnetic nanoparticles. Chun-Mei Yu; Jian-Wei Guo; Hai-Ying Gu // Microchimica Acta;Sep2009, Vol. 166 Issue 3/4, p215 

    Nanoparticles (NPs) consisting of an Fe3O4 core and a thin gold shell (referred to as Au@Fe3O4 NPs) were self-assembled on the surface of a glassy carbon electrode modified with ethylenediamine. Following adsorption of hemoglobin, its interaction with the NPs was studied by UV–Vis...

  • The use of dual beam ESEM FIB to reveal the internal ultrastructure of hydroxyapatite nanoparticle-sugar-glass composites. Wright, David M.; Rickard, John J.; Kyle, Nigel H.; Gard, Tevor G.; Dobberstein, Harald; Motskin, Michael; Donald, Athene M.; Skepper, Jeremy N. // Journal of Materials Science: Materials in Medicine;Jan2009, Vol. 20 Issue 1, p203 

    Microparticles (MP) spray dried from hydroxyapatite (HA) nanoparticle (NP) sugar suspensions are currently under development as a prolonged release vaccine vehicle. Those with a significant sugar component cannot be sectioned by ultramicrotomy as resins are excluded by the sugar. Focused ion...

  • Hierarchical investigations of minerals and composites for staggered configuration of nano bones and nano collagens-Biomaterials. Choudhary, R. B. // Chemical Business;Jan2008, Vol. 22 Issue 1, p39 

    The article focuses on the concepts of minerals and composites which have led nano experts to acquire multi-phase approaches for formulating and configuring the advanced bio materials like nano bones and nano collagens. It says that opportunities for the resource development of the bio materials...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics