Miniaturization of organically doped sol-gel materials: a microns-size fluorescent pH sensor

Joshua Samuel; Allina Strinkovski; Shmuel Shalom; Klony Lieberman; Michael Ottolenghi; David Avnir; Aaron Lewis

doi:10.1016/0167-577X(94)90254-2

Miniaturization of organically doped sol-gel materials: a microns-size fluorescent pH sensor

Joshua Samuel^*, Allina Strinkovski, Shmuel Shalom, Klony Lieberman, Michael Ottolenghi, David Avnir, Aaron Lewis

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

74 Scopus citations

Abstract

Miniaturization of a reactive doped sol-gel material is described. A reversible fluorescent pH sensor was constructed by placing a pyranine doped SiO₂ sol-gel matrix at a 10 μm tip of a metal coated micropipette. Subsecond response time was achieved by further downscaling to ≈ 1 μm. Using optical near-field microscopy configuration, these observations demonstrate the potential of constructing a variety of miniaturized sensors and chemical manipulators, by doping the sol-gel matrix with a suitable reagent.

Original language	English
Pages (from-to)	431-434
Number of pages	4
Journal	Materials Letters
Volume	21
Issue number	5-6
DOIs	https://doi.org/10.1016/0167-577X(94)90254-2
State	Published - Dec 1994

Access to Document

10.1016/0167-577X(94)90254-2

Cite this

@article{3d4c09bd95c6409ab2e6d242770a7264,

title = "Miniaturization of organically doped sol-gel materials: a microns-size fluorescent pH sensor",

abstract = "Miniaturization of a reactive doped sol-gel material is described. A reversible fluorescent pH sensor was constructed by placing a pyranine doped SiO2 sol-gel matrix at a 10 μm tip of a metal coated micropipette. Subsecond response time was achieved by further downscaling to ≈ 1 μm. Using optical near-field microscopy configuration, these observations demonstrate the potential of constructing a variety of miniaturized sensors and chemical manipulators, by doping the sol-gel matrix with a suitable reagent.",

author = "Joshua Samuel and Allina Strinkovski and Shmuel Shalom and Klony Lieberman and Michael Ottolenghi and David Avnir and Aaron Lewis",

year = "1994",

month = dec,

doi = "10.1016/0167-577X(94)90254-2",

language = "אנגלית",

volume = "21",

pages = "431--434",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

number = "5-6",

}

TY - JOUR

T1 - Miniaturization of organically doped sol-gel materials

T2 - a microns-size fluorescent pH sensor

AU - Samuel, Joshua

AU - Strinkovski, Allina

AU - Shalom, Shmuel

AU - Lieberman, Klony

AU - Ottolenghi, Michael

AU - Avnir, David

AU - Lewis, Aaron

PY - 1994/12

Y1 - 1994/12

N2 - Miniaturization of a reactive doped sol-gel material is described. A reversible fluorescent pH sensor was constructed by placing a pyranine doped SiO2 sol-gel matrix at a 10 μm tip of a metal coated micropipette. Subsecond response time was achieved by further downscaling to ≈ 1 μm. Using optical near-field microscopy configuration, these observations demonstrate the potential of constructing a variety of miniaturized sensors and chemical manipulators, by doping the sol-gel matrix with a suitable reagent.

AB - Miniaturization of a reactive doped sol-gel material is described. A reversible fluorescent pH sensor was constructed by placing a pyranine doped SiO2 sol-gel matrix at a 10 μm tip of a metal coated micropipette. Subsecond response time was achieved by further downscaling to ≈ 1 μm. Using optical near-field microscopy configuration, these observations demonstrate the potential of constructing a variety of miniaturized sensors and chemical manipulators, by doping the sol-gel matrix with a suitable reagent.

UR - http://www.scopus.com/inward/record.url?scp=0028758038&partnerID=8YFLogxK

U2 - 10.1016/0167-577X(94)90254-2

DO - 10.1016/0167-577X(94)90254-2

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:0028758038

SN - 0167-577X

VL - 21

SP - 431

EP - 434

JO - Materials Letters

JF - Materials Letters

IS - 5-6

ER -

Miniaturization of organically doped sol-gel materials: a microns-size fluorescent pH sensor

Abstract

Access to Document

Other files and links

Fingerprint

Cite this