2015
DOI: 10.1016/j.talanta.2015.03.067
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Optical paper-based sensor for ascorbic acid quantification using silver nanoparticles

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Cited by 74 publications
(42 citation statements)
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“…This property offers potential applications in the fields of physics, biotechnology, chemistry, materials science, biology, and catalysis [1][2][3]. In particular, the bimetallic -Fe 2 O 3 -Ag dumbbell-like nanoparticles have enhanced physical-chemical properties, since the Ag nanoparticles present an excellent catalytic activity, antibacterial effect, and a significant biocompatibility [4][5][6][7]. On the other hand, -Fe 2 O 3 possess magnetic properties.…”
Section: Introductionmentioning
confidence: 99%
“…This property offers potential applications in the fields of physics, biotechnology, chemistry, materials science, biology, and catalysis [1][2][3]. In particular, the bimetallic -Fe 2 O 3 -Ag dumbbell-like nanoparticles have enhanced physical-chemical properties, since the Ag nanoparticles present an excellent catalytic activity, antibacterial effect, and a significant biocompatibility [4][5][6][7]. On the other hand, -Fe 2 O 3 possess magnetic properties.…”
Section: Introductionmentioning
confidence: 99%
“…The Mathematica computation shown here suggests that the non-invasive measurement of colorimetric absorbance on paper is feasible, in contrast to conventional methods that suffer from paper scattering and require special lab-scaled instruments or additional chemicals to allow incident light to pass through the paper substrate. [16][17][18]21 More importantly, this computation algorithm is applicable to neutral red (NR) to which all the three channels substantially respond (see Fig. S3d and e †) due to its broad absorbance on the paper substrate while ThT has a nearly response-free channel (see Fig.…”
Section: Separation Of Dye Absorbance From the Paper Substrate Noisementioning
confidence: 99%
“…While there has been an effort to measure transmittance on paper, it requires lab-scaled instrumentation to apply an intense incident light to transmit sufficient signal through the paper matrix. [16][17][18][19][20] More invasive methods include reaction systems such as saturating the device in oil. 21 Nevertheless, researchers still reply on such methods of limited accuracy because of the surface structure of the paper that introduces scattering and noise.…”
Section: Introductionmentioning
confidence: 99%
“…7-8 chemical sensors, [9][10][11] antibacterial materials, 12-16 biomol-ecule detection, 17 and so forth. Traditionally, the preparation of silver nanoparticles often involves some tedious steps and extra reducing agents including sodium borohydride (NaHB 4 ), 17 sodium formaldehyde sulfoxylate (SFS), 18 and solvents like N, N-dimethylformamide (DMF), 19 acetone, 20 etc.…”
Section: Introductionmentioning
confidence: 99%