Nanoparticle Assemblies with Molecular Springs: A Nanoscale Thermometer

Lee, Jaebeom; Govorov, Alexander O.; Kotov, Nicholas A.

doi:10.1002/anie.200501264

Cited by 202 publications

(146 citation statements)

References 26 publications

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“…The relative sensitivity cannot be computed due to the absence of published data. 140 The CdTe-PEG-Au system is, therefore, an intriguing example of a nanoscale superstructure that undergoes a reversible structural change in response to the environmental conditions. The combination of this property with plasmonexciton interactions that display a high sensitivity of the optical output on the distance modulations represents the foundation of a new family of sensing and optoelectronic devices.…”

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confidence: 99%

Thermometry at the nanoscale

et al. 2012

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Non-invasive precise thermometers working at the nanoscale with high spatial resolution, where the conventional methods are ineffective, have emerged over the last couple of years as a very active field of research. This has been strongly stimulated by the numerous challenging requests arising from nanotechnology and biomedicine. This critical review offers a general overview of recent examples of luminescent and non-luminescent thermometers working at nanometric scale. Luminescent thermometers encompass organic dyes, QDs and Ln 3+ ions as thermal probes, as well as more complex thermometric systems formed by polymer and organic-inorganic hybrid matrices encapsulating these emitting centres. Non-luminescent thermometers comprise of scanning thermal microscopy, nanolithography thermometry, carbon nanotube thermometry and biomaterials thermometry. Emphasis has been put on ratiometric examples reporting spatial resolution lower than 1 micron, as, for instance, intracellular thermometers based on organic dyes, thermoresponsive polymers, mesoporous silica NPs, QDs, and Ln 3+ -based up-converting NPs and b-diketonate complexes. Finally, we discuss the challenges and opportunities in the development for highly sensitive ratiometric thermometers operating at the physiological temperature range with submicron spatial resolution.

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confidence: 99%

Thermometry at the nanoscale

et al. 2012

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“…[127][128][129][130] Although relatively recent (luminescent thermometry exploded over the past five years), the technique appears to be beneficial to many technological applications in a great variety of areas, such as microelectronics, microfluidics, bio-and nanomedicine. [131] Examples of luminescent thermometers based on organic-inorganic hybrids include metal-organic molecular compounds, [132] layer double hydroxides, [133] metalorganic frameworks, [134] polymer nanocomposites, [135] QDs in polymers, [136] inorganic NPs coated with an organic (or hybrid) layer, [137] and di-ureasil films co-doped with Eu 3+ and Tb 3+ $-diketonate complexes. [119,138] These later films were used as self-referenced and efficient luminescent probes to map temperature in microelectronic circuits [119,138,139] and optoelectronic devices, [140] demonstrating an intriguing application of hybrid materials in microelectronics.…”

Section: Luminescent Thermometersmentioning

confidence: 99%

Optical Properties of Hybrid Organic‐Inorganic Materials and their Applications

Parola

Julián‐López

Carlos

et al. 2016

Adv Funct Materials

244

116

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Research on hybrid inorganic‐organic materials has experienced an explosive growth since the 1980s, with the expansion of soft inorganic chemistry based processes. Indeed, mild synthetic conditions, low processing temperatures provided by “chimie douce” and the versatility of the colloidal state allow for the mixing of the organic and inorganic components at the nanometer scale in virtually any ratio to produce the so called hybrid materials. Today a high degree of control over both composition and nanostructure of these hybrids can be achieved allowing tunable structure‐property relationships. This, in turn, makes it possible to tailor and fine‐tune many properties (mechanical, optical, electronic, thermal, chemical…) in very broad ranges, and to design specific multifunctional systems for applications. In particular, the field of “Hybrid‐Optics” has been very productive not only scientifically but also in terms of applications. Indeed, numerous optical devices based on hybrids are already in, or very close, to the market. This review describes most of the recent advances performed in this field. Emphasis will be given to luminescent, photochromic, NLO and plasmonic properties. As an outlook we show that the controlled coupling between plasmonics and luminescence is opening a land of opportunities in the field of “Hybrid‐Optics”.

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“…The development of surface modification processes for these nanomaterials is an expected bottleneck in these techniques. However, there have been considerable advances in techniques for modifying the surface of nanomaterials by adequate chemical synthesis [28][29][30][31]. This paper reports a desirable example of an LBL bi-layer coating using a representative hydrophobic nanomaterial, multi-wall carbon nanotubes (MWCNT).…”

Section: Introductionmentioning

confidence: 99%

Controlled thin layer coating of carbon nanotube-polymer composites for UV-visible light protection

Lee

Park

Moon

et al. 2009

Korean J. Chem. Eng.

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A highly dispersed solution of multi-wall carbon nanotubes (MWCNT) and counterpart polymers was prepared in aqueous solution. A thin layer coating was deposited on glass substrates by using the layer-by-layer (LBL) method. A negative charged dispersion solution of MWCNT was obtained by oxidizing the MWCNT by immersion in nitric acid. Counterpart polymers, poly(diallydimethylammonium chloride) (PDDA) and poly(acrylic acid) (PAA), were used as base materials. The zeta potential measurements of the MWCNT solution showed the strongest potential at pH 4 and strong polyanionic surfaces at pH 5. A home-made automatic LBL machine was used to coat the polycationic/ anionic materials on glass substrates. The substrate was coated homogeneously by the LBL method and the transmittance from the range of ultraviolet (UV) to visible light was manipulated in the coating process. This simple technique might be effectively utilized for fabrication of micro-sensing and energy harvesting devices, and UV light protection.

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Nanoparticle Assemblies with Molecular Springs: A Nanoscale Thermometer

Cited by 202 publications

References 26 publications

Thermometry at the nanoscale

Thermometry at the nanoscale

Optical Properties of Hybrid Organic‐Inorganic Materials and their Applications

Controlled thin layer coating of carbon nanotube-polymer composites for UV-visible light protection

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