2018
DOI: 10.1364/ol.43.003317
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Fluorescent nanodiamonds for luminescent thermometry in the biological transparency window

Abstract: Fluorescent nanodiamonds (FNDs) have attracted recent interest for biological applications owing to their biocompatibility and photostability (absence of photoblinking and bleaching). For optical thermometry, nitrogen-vacancy (NV) color centers and silicon-vacancy color centers in diamonds have demonstrated potential, where the NV has the highest sensitivity. However, NV is often excited with green light, which can cause heating and photodamage to tissues, as well as autofluorescence that decreases sensitivity… Show more

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Cited by 40 publications
(30 citation statements)
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“…Measuring intracellular temperature is a topic of intensive investigation in biophysics for it can help elucidate the dynamics of target metabolic processes inside living cells. The types of nanothermometers employed in this context include organic dyes, [194] fluorescent proteins, [195,196] polymers, [197] and inorganic nanoparticles [198][199][200][201][202][203][204] (cf. Sections 3.1-3.4).…”
Section: Subcellular Thermometrymentioning
confidence: 99%
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“…Measuring intracellular temperature is a topic of intensive investigation in biophysics for it can help elucidate the dynamics of target metabolic processes inside living cells. The types of nanothermometers employed in this context include organic dyes, [194] fluorescent proteins, [195,196] polymers, [197] and inorganic nanoparticles [198][199][200][201][202][203][204] (cf. Sections 3.1-3.4).…”
Section: Subcellular Thermometrymentioning
confidence: 99%
“…Similar problems also affect fluorescent proteins, which are nonetheless desirable thanks to their ability to be genetically engineered to label specific biotargets. Conversely, inorganic nanoparticles, e.g., rare-earthdoped nanoparticles [198] and fluorescent nanodiamonds, [199][200][201][202][203][204] are considerably more photostable even under extensive laser excitation. They can thus be observed individually in living cells over extended periods of time.…”
Section: Subcellular Thermometrymentioning
confidence: 99%
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“…Такие флуоресцентные алмазные наночастицы перспективны для применения в качестве источников двухволнового узкополосного излучения в люминесцентной нанотермометрии. Алмазные наночастицы с оптическими центрами окраски представляют интерес для создания наноразмерных оптических сенсоров с целью измерения локальных изменений температуры на клеточном уровне в биологических тканях [1][2][3][4][5][6]. Это обусловлено уникальными свойствами наноалмазов: биосовместимостью, химической стойкостью, возможностью проведения функционализации поверхности.…”
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“…Центр Si V обладает большей (по сравнению с центром Ge V ) чувствительностью при измерении сдвига максимума БФЛ при изменении температуры ( λ/ T ∼ 0.012 nm/K для Si V и ∼ 0.009 nm/K для Ge V ) [3,6]. Максимум БФЛ центра окраски Si V находится в окне прозрачности биологических тканей и не перекрывается со спектральным диапазоном их автофлуоресценции, что позволяет проводить измерения при небольших мощностях излучения и таким образом минимизировать перегрев и фотоиндуцированные изменения биологических объектов [2].…”
unclassified