Results 231 to 240 of about 1,221,230 (302)

Glucose Biosensor Using Glucose Oxidase Immobilized in Polyaniline

Applied Biochemistry and Biotechnology, 1992
A biosensor for glucose utilizing kinetics of glucose oxidase (EC 1.1.3.4.) was developed. The enzyme was immobilized on polyaniline by covalent bonding, using glutaraldehyde as a bifunctional agent. The system showed a linear response up to 2.2 mM of glucose with a response time of 2.5-4.0 min. In addition, the immobilized enzyme had a higher activity
A H, Parente, E T, Marques, W M, Azevedo, F B, Diniz, E H, Melo, J L, Lima Filho   +5 more
openaire   +2 more sources

Electrochemical glucose biosensors

Chemical Reviews, 2007
First-generation glucose biosensors relied on the use of the natural oxygen cosubstrate and the production and detection of hydrogen peroxide and were much simpler, especially when miniaturized sensors are concerned. More sophisticated bioelectronic systems for enhancing the electrical response, based on patterned monolayer or multilayer assemblies and
openaire   +2 more sources

Noninvasive Diabetes Monitoring through Continuous Analysis of Sweat Using Flow-Through Glucose Biosensor.

Analytical Chemistry, 2019
We propose monitoring of diabetes through continuous analysis of undiluted sweat immediately after its excretion using a flow-through glucose biosensor. The used biosensors are based on Prussian Blue and glucose oxidase immobilized in perfluorosulfonated
E. Karpova, Elizaveta V. Shcherbacheva, Andrei A. Galushin, Darya V. Vokhmyanina, E. E. Karyakina, A. Karyakin   +5 more
semanticscholar   +1 more source

Highly selective and stable glucose biosensor based on incorporation of platinum nanoparticles into polyaniline-montmorillonite hybrid composites

, 2020
The selectivity and stability of biosensor are still challenging goal. Herein, a glucose biosensor was developed by anchoring glucose oxidase (GOD) within the polyaniline (PANI)-montmorillonite (MMT)-platinum nanoparticles (PtNPs) nanocomposite through ...
Hao Zheng, Maokun Liu, Zupeng Yan, Jianfang Chen   +3 more
semanticscholar   +1 more source

Miniature electrochemical glucose biosensors

Analytica Chimica Acta, 1993
Glucose-oxidase-based sensors were realized using three techniques of immobilizing thin layers of enzyme over a three-thin-film electrode transducer. Sensors with chemically crosslinked membranes, completed by an outer diffusion-limiting membrane, were characterized with consideration of the basic requirements of an implantable device. Thus, e.g.
M. Koudelka-Hep, D.J. Strike, N.F. de Rooij   +2 more
openaire   +1 more source

Rechargeable Glucose Biosensors

1996
There are several studies by numerous investigators in the area of glucose sensing, aimed at fulfilling the need for an implantable glucose sensor to close the loop for an insulin pump, and obtain a complete artificial pancreas1–3 However, a continuously functioning implantable glucose sensor with long-term stability has not yet been achieved. Research
E. Wilkins, P. Atanasov
openaire   +1 more source

A novel optical fiber glucose biosensor based on carbon quantum dots-glucose oxidase/cellulose acetate complex sensitive film.

Biosensors & bioelectronics, 2019
A novel optical fiber glucose biosensor based on fluorescent carbon quantum dots (CQDs)-glucose oxidase (GOD)/cellulose acetate (CA) complex sensitive film was fabricated, in which the dip-coating method was adopted to immobilize the CQDs-GOD/CA complex ...
Sha Yu, Liyun Ding, Haitao Lin, Wei Wu, Jun Huang   +4 more
semanticscholar   +1 more source

Semimicro-biosensor for glucose

2000 International Semiconductor Conference. 23rd Edition. CAS 2000 Proceedings (Cat. No.00TH8486), 2002
In order to evaluate the perspectives of the SnO/sub 2/ film in manufacturing microsensors, a self-made semimicro-biosensor for glucose is studied. The electric and electrocatalytic proprieties of the SnO/sub 2/ film were established by EIS measurements. It was found that the semiconductive properties of the n-type Sb doped SnO/sub 2/ film (Sn:Sb=45:2)
F. Kormos, I. Tarsiche
openaire   +1 more source

Hybrid cellulose nanocrystal/magnetite glucose biosensors

Carbohydrate Polymers, 2020
There exists a high demand for simple and affordable blood glucose monitoring methods. For this purpose, new generations of biosensors are being developed for possible in vivo or dermal use. We present (non)sulphated cellulose nanocrystal/magnetite thin films to act as dermal and oral glucose biosensors.
Chantal T, Tracey, Mikhail A, Torlopov, Ilia S, Martakov, Ekaterina A, Vdovichenko, Mikhail, Zhukov, Pavel V, Krivoshapkin, Vasily I, Mikhaylov, Elena F, Krivoshapkina   +7 more
openaire   +2 more sources

Carbon-dot-based ratiometric fluorescence glucose biosensor

Sensors and Actuators B: Chemical, 2019
A ratiometric fluorescence glucose biosensor based on carbon dots (CDs) and rhodamine 6G (Rh6G) was developed both as an aqueous solution and as a crosslinked poly(acrylic acid) solid-state film.
Moon-Jin Cho, Soo-young Park
semanticscholar   +1 more source