Results 41 to 50 of about 558,671 (204)

A Self-Assembled Microlensing Rotational Probe [PDF]

open access: yes, 1998
A technique to measure microscopic rotational motion is presented. When a small fluorescent polystyrene microsphere is attached to a larger polystyrene microsphere, the larger sphere acts as a lens for the smaller microsphere and provides an optical ...
Brody, James P., Quake, Stephen R.
core   +2 more sources

Fluorescent nanoparticles for sensing

open access: yes, 2020
Nanoparticle-based fluorescent sensors have emerged as a competitive alternative to small molecule sensors, due to their excellent fluorescence-based sensing capabilities.
Acosta   +183 more
core   +1 more source

A single chemosensor for multiple analytes: fluorogenic and ratiometric absorbance detection of Zn²⁺, Mg²⁺ and F⁻, and its cell imaging [PDF]

open access: yes, 2015
A simple coumarin based sensor 1 has been synthesized from the condensation reaction of 7-hydroxycoumarin and ethylenediamine via the intermediate 7-hydroxy-8-aldehyde-coumarin.
Gang, Wei   +6 more
core   +2 more sources

Cyanide-sensitive fluorescent probes

open access: yesDyes and Pigments, 2005
We characterize the response of several boronic acid containing fluorophores, which are widely used for sugar determination, towards aqueous cyanide. In two recent reports we have shown that boronic acid containing fluorophores can be used to sense aqueous cyanide through physiological safeguard levels.
Ramachandram, Badugu   +2 more
openaire   +3 more sources

A Chemical Proteomic Probe for Detecting Dehydrogenases: \u3cem\u3eCatechol Rhodanine\u3c/em\u3e [PDF]

open access: yes, 2012
The inherent complexity of the proteome often demands that it be studied as manageable subsets, termed subproteomes. A subproteome can be defined in a number of ways, although a pragmatic approach is to define it based on common features in an active ...
Ge, Xia, Sem, Daniel S.
core   +1 more source

Nanostructured luminescently labeled nucleic acids [PDF]

open access: yes, 2017
Important and emerging trends at the interface of luminescence, nucleic acids and nanotechnology are: (i) the conventional luminescence labeling of nucleic acid nanostructures (e.g. DNA tetrahedron); (ii) the labeling of bulk nucleic acids (e.g. single‐
Adleman   +105 more
core   +1 more source

Modulating absorption and emission of smart fluorescent organic probes through tailored physicochemical properties

open access: yesScientific Reports
The newly fabricated fluorescent organic nanoparticles (FONs) with size 80.94 nm as renowned contender has facile synthesis, robust tunable fluorescence, unique optical properties and great potential in sensing at trace level.
Muhammad Atif   +4 more
doaj   +1 more source

Confirmation of the presence of viable but non-cultureable bacteria in the stratosphere [PDF]

open access: yes, 2004
The presence of viable, but non-cultureable, bacteria on membranes through which stratospheric air samples were passed has been confirmed using viable fluorescent ...
Narlikar, J.V.   +4 more
core   +1 more source

Development of TaqMan probe-based insulated isothermal PCR (iiPCR) for sensitive and specific on-site pathogen detection. [PDF]

open access: yesPLoS ONE, 2012
Insulated isothermal PCR (iiPCR), established on the basis of Ralyeigh-Bénard convection, is a rapid and low-cost platform for nucleic acid amplification.
Yun-Long Tsai   +8 more
doaj   +1 more source

Strong Quantum Spin Correlations Observed in Atomic Spin Mixing

open access: yes, 2011
We have observed sub-Poissonian spin correlations generated by collisionally induced spin mixing in a spin-1 Bose-Einstein condensate. We measure a quantum noise reduction of -7 dB (-10 dB corrected for detection noise) below the standard quantum limit ...
Christopher D. Hamley   +4 more
core   +1 more source

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