Colorimetric cutoff indication of relative humidity based on selectively functionalized mesoporous silica
نویسندگان
چکیده
منابع مشابه
Fluorometric/colorimetric logic gates based on BODIPY-functionalized mesoporous silica.
Functionalized mesoporous SiO2 nanoparticles are useful as colorimetric and fluorometric logic gates, which with various inputs such as metal ions induce photoinduced electron transfer (PET) and internal charge transfer (ICT) processes. We have demonstrated that metal ions acting as modulators in BODIPY-functionalized mesoporous SiO2 can generate absorbance changes in accordance with the operat...
متن کاملCantilever bending based on humidity-actuated mesoporous silica/silicon bilayers
We use a soft templating approach in combination with evaporation induced self-assembly to prepare mesoporous films containing cylindrical pores with elliptical cross-section on an ordered pore lattice. The film is deposited on silicon-based commercial atomic force microscope (AFM) cantilevers using dip coating. This bilayer cantilever is mounted in a humidity controlled AFM, and its deflection...
متن کاملA High Temperature Capacitive Humidity Sensor Based on Mesoporous Silica
Capacitive sensors are the most commonly used devices for the detection of humidity because they are inexpensive and the detection mechanism is very specific for humidity. However, especially for industrial processes, there is a lack of dielectrics that are stable at high temperature (>200 °C) and under harsh conditions. We present a capacitive sensor based on mesoporous silica as the dielectri...
متن کاملInvestigation of Carbon Dioxide Adsorption on Amino-Functionalized Mesoporous Silica
Carbon dioxide (CO2) adsorption on unfunctionalized and amino-functionalized SBA-3 materials are investigated and compared in this study. The synthesized materials are characterized by various techniques such as X-ray diffraction (XRD), Brunauer-Emmet-Teller (BET) method, Fourier transform infrared (FT-IR) and Scanning electron microscopy (SEM).The isotherms of these materials have been measure...
متن کاملColorimetric-Based Detection of TNT Explosives Using Functionalized Silica Nanoparticles
This proof-of-concept study proposes a novel sensing mechanism for selective and label-free detection of 2,4,6-trinitrotoluene (TNT). It is realized by surface chemistry functionalization of silica nanoparticles (NPs) with 3-aminopropyl-triethoxysilane (APTES). The primary amine anchored to the surface of the silica nanoparticles (SiO2-NH2) acts as a capturing probe for TNT target binding to fo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Sensors and Actuators B: Chemical
سال: 2020
ISSN: 0925-4005
DOI: 10.1016/j.snb.2020.128138