01361nas a2200253   4500008004100000022001400041245010600055210006900161260006800230300001400298490000700312520045600319653001100775653001600786653002100802653001400823100001700837700002100854700002500875700002000900700002800920700002700948856013200975       2005                        eng d  a0021-899500aMiscibility of chitosan-hydroxyethylcellulose blends in aqueous acetic acid solutions at 35 degrees C0 aMiscibility of chitosanhydroxyethylcellulose blends in aqueous a  a111 RIVER ST, HOBOKEN, NJ 07030 USAbJOHN WILEY & SONS INCcJUN  a1996-19980 v963 a<p>The miscibility of blends of chitosan and hydroxyethylcellulose in a 2% acetic acid solution was studied by viscometry, densitometry, and refractometry at 35 degrees C. The data suggest that the blends were completely miscible in all proportions. Further, the membranes were fabricated from concentrated blend solutions. The solid-state compatibility of the blends was confirmed by scanning electron microscopy. (c) 2005 Wiley Periodicals, Inc.</p>10ablends10amiscibility10arefractive index10aviscosity1 aWali, A., C.1 aNaidu, B., V. K.1 aMallikarjuna, N., N.1 aSainkar, S., R.1 aHalligudi, Shivaraj, B.1 aAminabhavi, Tejraj, M.  uhttps://library.ncl.res.in/content/miscibility-chitosan-hydroxyethylcellulose-blends-aqueous-acetic-acid-solutions-35-degrees-002461nas a2200409   4500008004100000022001400041245008800055210006900143260000900212300001600221490000700237520122100244653001601465653002501481653001701506653001501523653002601538653001901564653002201583653001301605653002101618653001601639653004201655653001201697653001301709653002401722100002001746700002401766700002201790700002001812700001601832700002101848700002201869700002101891700002101912856011801933       2024                        eng d  a1530-437X00aPolymeric PEI/PEG coated optical fiber fabry-perot interferometer for CO2 detection0 aPolymeric PEIPEG coated optical fiber fabryperot interferometer   cDEC   a40883-408890 v243 a<p>
	Monitoring carbon dioxide (CO2) gas is essential for numerous applications, but the detection of CO2 in miniaturized devices presents significant challenges. In this study, a polyethyleneimine/poly(ethylene glycol) (PEI/PEG) coated optical fiber Fabry-Perot interferometer (FPI) and its charge transfer process toward CO2 are investigated. Scanning electron microscopy and Fourier transform infrared spectroscopy were used to analyze the surface morphology and vibration bands of the PEI/PEG composite. The PEI/PEG composite Fabry-Perot (FP) cavity of length similar to 13 mu m is coated at the distal end of the single-mode fiber using a dip coating technique. A highly sensitive optical and low-cost FPI probe fabrication has displayed a linear sensitivity of 17.10 nm/% in the range of 0.31%-1.25% CO2 gas. The response and recovery times of the sensor are in a few tens of seconds. The enhanced performance of the sensor is primarily due to the protonation and charge transfer between CO2 gas molecules and PEI/PEG composite. Due to low-cost fabrication and high sensitivity, this FPI sensor can be used in a range of potential applications in bioprocessing, healthcare, and environmental monitoring.</p>
10adip coating10aFresnel's reflection10aInterference10amonitoring10aOptical fiber sensors10aOptical fibers10apolymer composite10aPolymers10arefractive index10asensitivity10aSensor phenomena and characterization10asensors10aswelling10aTemperature sensors1 aPawar, Dnyandeo1 aPresti, Daniela, Lo1 aLemma, Enrico, D.1 aRainer, Alberto1 aKumar, Ajay1 aKanawade, Rajesh1 aSilvestri, Sergio1 aSchena, Emiliano1 aMassaroni, Carlo  uhttps://library.ncl.res.in/content/polymeric-peipeg-coated-optical-fiber-fabry-perot-interferometer-co2-detection