Entrapment of Glucose Oxidase in Silica Gel by the Sol-Gel Method and Its Application to Glucose Sensor

1992 ◽  
Vol 21 (8) ◽  
pp. 1615-1618 ◽  
Author(s):  
Yoshiro Tatsu ◽  
Keishi Yamashita ◽  
Muneaki Yamaguchi ◽  
Soichiro Yamamura ◽  
Hitoshi Yamamoto ◽  
...  
Keyword(s):  
Glucose Oxidase ◽  
Silica Gel ◽  
Glucose Sensor ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method

scholarly journals Glucose sensor with an enzyme-entrapped silica gel film prepared by a sol-gel method.

1995 ◽  
Vol 44 (11) ◽  
pp. 927-932 ◽  
Author(s):  
Toshio YAO ◽  
Ikuko HARADA ◽  
Taketoshi NAKAHARA
Keyword(s):  
Silica Gel ◽  
Glucose Sensor ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method ◽  
Gel Film

Enzymatic activity of glucose oxidase encapsulated in transparent glass by the sol-gel method

1992 ◽  
Vol 4 (3) ◽  
pp. 495-497 ◽  
Author(s):  
Stacey A. Yamanaka ◽  
Fumito Nishida ◽  
Lisa M. Ellerby ◽  
Clinton R. Nishida ◽  
Bruce Dunn ◽  
...  
Keyword(s):  
Enzymatic Activity ◽  
Glucose Oxidase ◽  
Sol Gel ◽  
Transparent Glass ◽  
Gel Method ◽  
Sol Gel Method

scholarly journals LASER-photolysis of hemoglobin encapsulated in the silica-gel using Sol-Gel method.

1999 ◽  
Vol 39 (supplement) ◽  
pp. S125
Author(s):  
T. Nakai ◽  
H. Morimoto ◽  
H. Hori
Keyword(s):  
Silica Gel ◽  
Sol Gel ◽  
Laser Photolysis ◽  
Gel Method ◽  
Sol Gel Method

Synthesis of Silica Gel and Development of Coating Method for Applications in a Regenerative Air Dehumidifier

2016 ◽  
Vol 839 ◽  
pp. 70-74
Author(s):  
Winit Aimjaijit ◽  
Pipat Chaiwiwatworakul ◽  
Surawut Chuangchote
Keyword(s):  
Sulfuric Acid ◽  
Heat Exchanger ◽  
Surface Area ◽  
Silica Gel ◽  
Sol Gel ◽  
Dip Coating ◽  
Moisture Adsorption ◽  
Air Conditioners ◽  
Gel Method ◽  
Sol Gel Method

In order to control humidity in air conditioning system, various desiccants are used to dehumidify air in air conditioners. One of simple methods, which can be used to coat desiccant materials on surface of heat exchanger in air conditioners, is dip coating. Typical, desiccants used in dehumidifying system is silica gel in a form of solid-state powder. This powder has low adhesion with the heat exchanger surface. To improve adhesion of the silica gel powder, some glue is generally applied on the surface of heat exchanger. The dehumidification properties of silica gel, however, will be remarkably reduced because of less surface area of silica gel powder. Instead of silica powder, this work aims to synthesize silica gel using sol-gel method, which the sol-state material can be suitably used in dip coating. In experimental study, silica gel was synthesized by sol-gel method of precursors with 1 M sulfuric acid (H2SO4). The pH was adjusted using sodium silicate solution (Na2O(SiO2)x.xH2O) and rinsing with DI water. Surface area, pore volume and size, phase composition, morphology, and percentage of moisture adsorption of the synthesized silica gel were characterized. Silica gel fabricated with pH 5 showed the highest percentage of moisture adsorption compared with other samples. In addition to the highest percentage, silica gel with pH 5 could adsorb water up to 28 times of its own weight. X-ray diffraction (XRD) results showed that Na2SO4 impurity were successfully eliminated after rinsing with DI water more than 4 times. Finally, adhesive property of silica gel on aluminium-fin samples was tested with scalloped tape-test method. It was observed that, to improve the adhesion property of silica gel on the aluminium fins, prior to dipping of silica gel, the fins should be etched with sulfuric acid. The acid can adjust the surface of fines to be much rougher.

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