Tetracarboxylic acid cobalt phthalocyanine SAM on gold: Potential applications as amperometric sensor for H2O2 and fabrication of glucose biosensor

2006 ◽  
Vol 52 (1) ◽  
pp. 177-186 ◽  
Author(s):  
Philani N. Mashazi ◽  
Kenneth I. Ozoemena ◽  
Tebello Nyokong
Keyword(s):  
Glucose Biosensor ◽  
Amperometric Sensor ◽  
Cobalt Phthalocyanine ◽  
Tetracarboxylic Acid ◽  
Potential Applications

Cobalt Phthalocyanine Tetracarboxylic Acid Functionalized Polymer Monolith for Selective Enrichment of Glycopeptides and Glycans

PROTEOMICS ◽  
2018 ◽  
Vol 18 (20) ◽  
pp. 1700399 ◽  
Author(s):  
Wenjuan Zhang ◽  
Naizhong Song ◽  
Haijiao Zheng ◽  
Wei Feng ◽  
Qiong Jia
Keyword(s):  
Cobalt Phthalocyanine ◽  
Tetracarboxylic Acid ◽  
Selective Enrichment ◽  
Polymer Monolith

A Disposable Amperometric Sensor Screen Printed on a Nitrocellulose Strip:  A Glucose Biosensor Employing Lead Oxide as an Interference-Removing Agent

2000 ◽  
Vol 72 (8) ◽  
pp. 1925-1929 ◽  
Author(s):  
Gang Cui ◽  
Sang Jin Kim ◽  
Sung Hyuk Choi ◽  
Hakhyun Nam ◽  
Geun Sig Cha ◽  
...  
Keyword(s):  
Lead Oxide ◽  
Glucose Biosensor ◽  
Amperometric Sensor ◽  
Screen Printed

Cobalt phthalocyanine tetracarboxylic acid modified reduced graphene oxide: a sensitive matrix for the electrocatalytic detection of peroxynitrite and hydrogen peroxide

RSC Advances ◽  
2015 ◽  
Vol 5 (2) ◽  
pp. 1474-1484 ◽  
Author(s):  
Ioana S. Hosu ◽  
Qian Wang ◽  
Alina Vasilescu ◽  
Serban F. Peteu ◽  
Valentin Raditoiu ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Cobalt Phthalocyanine ◽  
Tetracarboxylic Acid ◽  
Electrocatalytic Properties ◽  
Reduced Graphene

The electrocatalytic properties of cobalt phthalocyanine modified reduced graphene oxide for peroxynitrite and hydrogen peroxide are investigated.

scholarly journals A Simple and Facile Glucose Biosensor Based on Prussian Blue Modified Graphite String

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Seung Ho Lee ◽  
Joo-Ho Chung ◽  
Hun-Kuk Park ◽  
Gi-Ja Lee
Keyword(s):  
Health Care ◽  
Ascorbic Acid ◽  
Uric Acid ◽  
Prussian Blue ◽  
Electrochemical Techniques ◽  
Glucose Sensing ◽  
Glucose Biosensor ◽  
Potential Applications ◽  
Single Use ◽  
Excellent Reproducibility

This work describes the string sensor for the simple and sensitive detection of glucose which is based on Prussian blue (PB) modified graphite utilizing dipping. First, PB modified graphite (PB-G) strings are characterized by physical and electrochemical techniques to optimize the PB-G layer thickness. Then, glucose oxidase (GOx) is immobilized on PB-G string electrode with biocompatible chitosan overlayer (Chi/GOx/PB-G). The Chi/GOx/PB-G string electrode exhibits a sensitivity of 641.3 μA·mM−1·cm−2to glucose with a linear range of 0.03 to 1.0 mM (R2=0.9957) and a rapid response time (<3 s). Moreover, the Chi/GOx/PB-G string electrodes are less sensitive to common interference materials such as ascorbic acid, uric acid, galactose, and acetaminophen than to glucose. The Chi/GOx/PB-G string electrodes also show excellent reproducibility (<5% RSD). Therefore, our Chi/GOx/PB-G string electrodes can be simple, robust, and reliable tools for glucose sensing which can avoid complicated and difficult multistep fabrication processes. In addition, we expect that they have many potential applications in fields ranging from health care to food analysis, in particular where single use is favorable.

scholarly journals Ultrasound-Induced Amino Acid-Based Hydrogels With Superior Mechanical Strength for Controllable Long-Term Release of Anti-Cercariae Drug

2021 ◽  
Vol 9 ◽  
Author(s):  
Liying Ling ◽  
Lei Zhu ◽  
Yibao Li ◽  
Chunhua Liu ◽  
Linxiu Cheng
Keyword(s):  
Drug Release ◽  
Slow Release ◽  
Superior Performance ◽  
Cytotoxicity Test ◽  
Tetracarboxylic Acid ◽  
Supramolecular Hydrogel ◽  
Stimulus Responsive ◽  
Potential Applications ◽  
Responsive Hydrogels

Stimulus-responsive hydrogels are significantly programmable materials that show potential applications in the field of biomedicine and the environment. Ultrasound as a stimulus can induce the formation of hydrogels, which exhibit the superior performance of different structures. In this study, we reported an ultrasound-induced supramolecular hydrogel based on aspartic acid derivative N,N′-diaspartate-3,4,9,10-perylene tetracarboxylic acid imide, showing superior performance in drug release. The results show that the driving force of this ultrasonic induced hydrogel could be attributed to hydrogen bonding and π-π interaction. The rheological and cytotoxicity test illustrate excellent mechanical properties and biocompatibility of the hydrogel. The anti-Schistosoma japonicum cercariae (CC) drug release results show large drug loadings (500 mg/ml) and long-term release (15 days) of this hydrogel. This study demonstrates that this hydrogel may serve as a slow-release platform for anti-CC.

A sensitive and selective enzyme-free amperometric glucose biosensor using a composite from multi-walled carbon nanotubes and cobalt phthalocyanine

RSC Advances ◽  
2015 ◽  
Vol 5 (34) ◽  
pp. 26762-26768 ◽  
Author(s):  
Rajkumar Devasenathipathy ◽  
Chelladurai Karuppiah ◽  
Shen-Ming Chen ◽  
Selvakumar Palanisamy ◽  
Bih-Show Lou ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Modified Electrode ◽  
Glucose Sensor ◽  
Glucose Biosensor ◽  
Cobalt Phthalocyanine ◽  
Multiwalled Carbon ◽  
Multi Walled Carbon Nanotubes ◽  
Free Glucose ◽  
Walled Carbon Nanotubes

In the present study, a simple and sensitive amperometric enzyme-free glucose sensor was developed at a multiwalled carbon nanotube and cobalt phthalocyanine (MWCNT–CoTsPc) modified electrode.

An in situ and ex situ TEM study of the formation of thin cobalt silicide films by molecular beam epitaxy on the silicon (100) surface

1988 ◽  
Vol 46 ◽  
pp. 884-885
Author(s):  
D. Loretto ◽  
J. M. Gibson ◽  
S. M. Yalisove ◽  
R. T. Tung
Keyword(s):  
Molecular Beam Epitaxy ◽  
Molecular Beam ◽  
Defect Density ◽  
High Vacuum ◽  
Ultra High Vacuum ◽  
Ex Situ ◽  
Metal Base ◽  
In Situ Experiments ◽  
Potential Applications

The cobalt disilicide/silicon system has potential applications as a metal-base and as a permeable-base transistor. Although thin, low defect density, films of CoSi2 on Si(111) have been successfully grown, there are reasons to believe that Si(100)/CoSi2 may be better suited to the transmission of electrons at the silicon/silicide interface than Si(111)/CoSi2. A TEM study of the formation of CoSi2 on Si(100) is therefore being conducted. We have previously reported TEM observations on Si(111)/CoSi2 grown both in situ, in an ultra high vacuum (UHV) TEM and ex situ, in a conventional Molecular Beam Epitaxy system.The procedures used for the MBE growth have been described elsewhere. In situ experiments were performed in a JEOL 200CX electron microscope, extensively modified to give a vacuum of better than 10-9 T in the specimen region and the capacity to do in situ sample heating and deposition. Cobalt was deposited onto clean Si(100) samples by thermal evaporation from cobalt-coated Ta filaments.

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