Plasmonics and its Applications

Barbillon, Grégory

doi:10.3390/ma12091502

Cited by 52 publications

(24 citation statements)

References 40 publications

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“…The crude product was purified by column chromatography over silica gel using a mixture of dichloromethane and hexane to afford compound B3 in 82 % yield. 1 Synthesis of BODIPY B4 and B5. [36,38,39] Freshly distilled pyrrole (0.5 g, 7.45 mmol) or 2,4-dimethyl pyrrole (0.5 g, 5.25 mmol) and benzoyl chloride (0.37 g, 2.63 mmol) were dissolved in 150 mL dry DCM, and the reaction mixture was stirred for 16 hours at room temperature.…”

Section: Femtosecond Transient Absorption Spectroscopymentioning

confidence: 99%

“…Plasmon-molecule coupling has emerged as a new modality for the development of photonic devices and optically responsive materials. [1][2][3][4][5][6] Metallic nanoparticles in combination with molecular adsorbates (dyes) provide a platform to construct heterostructures or "hybrid" materials whose photophysical properties may be tuned at the nanoscale. [7][8][9][10] Molecules which absorbs light near to the surface plasmon resonance (SPR) absorption peak of metal nanoparticles can induce changes in the photophysical and electronic properties of metal nanoparticles (MNPs) due to plasmon-molecule interactions.…”

Section: Introductionmentioning

confidence: 99%

“…Plasmon‐molecule coupling has emerged as a new modality for the development of photonic devices and optically responsive materials [1–6] . Metallic nanoparticles in combination with molecular adsorbates (dyes) provide a platform to construct heterostructures or “hybrid” materials whose photophysical properties may be tuned at the nanoscale [7–10] .…”

Section: Introductionmentioning

confidence: 99%

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Fine‐Tuning Plasmon‐Molecule Interactions in Gold‐BODIPY Nanocomposites: The Role of Chemical Structure and Noncovalent Interactions

et al. 2020

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Strong coupling between localized surface plasmons and molecular absorptions leads to remarkable changes in the photophysical properties of dye‐loaded metal nanoparticles. Here, we report supramolecular nanocomposites consisting of BODIPY, tryptophan, and gold nanoparticles, and investigate the effect of structural variations on their photophysical properties. Our results indicate that the photostability and photosensitization properties of the nanocomposites depend on the chemical composition of the BODIPY molecules. The singlet oxygen quantum yield of the nanocomposites NC1 (BODIPY, B1 bearing a single methyl group) and NC3 (BODIPY, B3 with 5 methyl and 2 iodo groups) were 0.46 and 0.42, respectively, which were significantly higher compared to their individual components. Ultrafast spectroscopy studies revealed that the migration of photoexcited BODIPY electrons to the plasmonic photoexcitation allowed electron transfer into the singlet oxygen states, thereby leading to efficient generation of singlet oxygen.

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Section: Femtosecond Transient Absorption Spectroscopymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fine‐Tuning Plasmon‐Molecule Interactions in Gold‐BODIPY Nanocomposites: The Role of Chemical Structure and Noncovalent Interactions

et al. 2020

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“…This optical enhancement arises from the NMNPs free electrons that endure as a collective coherent oscillation that produces a surface plasma state (Figure 2). NMNPs surface plasmas resonate at a particular frequency and this surface plasmonic resonance phenomenon is termed as the localized surface plasmon resonance (SPR) [29]. The SPR oscillation decays by radiating its energy converting this energy into scattered light.…”

Section: Unique Optical Propertiesmentioning

confidence: 99%

Noble Metal Nanoparticles-Based Colorimetric Biosensor for Visual Quantification: A Mini Review

Lü

2019

Chemosensors

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Nobel metal can be used to form a category of nanoparticles, termed noble metal nanoparticles (NMNPs), which are inert (resistant to oxidation/corrosion) and have unique physical and optical properties. NMNPs, particularly gold and silver nanoparticles (AuNPs and AgNPs), are highly accurate and sensitive visual biosensors for the analytical detection of a wide range of inorganic and organic compounds. The interaction between noble metal nanoparticles (NMNPs) and inorganic/organic molecules produces colorimetric shifts that enable the accurate and sensitive detection of toxins, heavy metal ions, nucleic acids, lipids, proteins, antibodies, and other molecules. Hydrogen bonding, electrostatic interactions, and steric effects of inorganic/organic molecules with NMNPs surface can react or displacing capping agents, inducing crosslinking and non-crosslinking, broadening, or shifting local surface plasmon resonance absorption. NMNPs-based biosensors have been widely applied to a series of simple, rapid, and low-cost diagnostic products using colorimetric readout or simple visual assessment. In this mini review, we introduce the concepts and properties of NMNPs with chemical reduction synthesis, tunable optical property, and surface modification technique that benefit the development of NMNPs-based colorimetric biosensors, especially for the visual quantification. The “aggregation strategy” based detection principle of NMNPs colorimetric biosensors with the mechanism of crosslinking and non-crosslinking have been discussed, particularly, the critical coagulation concentration-based salt titration methodology have been exhibited by derived equations to explain non-crosslinking strategy be applied to NMNPs based visual quantification. Among the broad categories of NMNPs based biosensor detection analyses, we typically focused on four types of molecules (melamine, single/double strand DNA, mercury ions, and proteins) with discussion from the standpoint of the interaction between NMNPs surface with molecules, and DNA engineered NMNPs-based biosensor applications. Taken together, NMNPs-based colorimetric biosensors have the potential to serve as a simple yet reliable technique to enable visual quantification.

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“…The strong development of plasmonic nanomaterials for various applications such as photovoltaics [ 1 , 2 , 3 , 4 ], optical devices [ 5 , 6 , 7 , 8 , 9 , 10 ], and biochemical sensors [ 11 , 12 , 13 , 14 , 15 , 16 , 17 ] has taken place over these last ten years. The plasmonic nanostructures can also enable the detection of phase transitions under high-pressure conditions [ 18 ], the luminescence upconversion enhancement [ 19 , 20 ], and the optical tuning of photoluminescence [ 21 ] and upconversion luminescence [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Latest Novelties on Plasmonic and Non-Plasmonic Nanomaterials for SERS Sensing

Barbillon

2020

Nanomaterials

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An explosion in the production of substrates for surface enhanced Raman scattering (SERS) has occurred using novel designs of plasmonic nanostructures (e.g., nanoparticle self-assembly), new plasmonic materials such as bimetallic nanomaterials (e.g., Au/Ag) and hybrid nanomaterials (e.g., metal/semiconductor), and new non-plasmonic nanomaterials. The novel plasmonic nanomaterials can enable a better charge transfer or a better confinement of the electric field inducing a SERS enhancement by adjusting, for instance, the size, shape, spatial organization, nanoparticle self-assembly, and nature of nanomaterials. The new non-plasmonic nanomaterials can favor a better charge transfer caused by atom defects, thus inducing a SERS enhancement. In last two years (2019–2020), great insights in the fields of design of plasmonic nanosystems based on the nanoparticle self-assembly and new plasmonic and non-plasmonic nanomaterials were realized. This mini-review is focused on the nanoparticle self-assembly, bimetallic nanoparticles, nanomaterials based on metal-zinc oxide, and other nanomaterials based on metal oxides and metal oxide-metal for SERS sensing.

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Plasmonics and its Applications

Cited by 52 publications

References 40 publications

Fine‐Tuning Plasmon‐Molecule Interactions in Gold‐BODIPY Nanocomposites: The Role of Chemical Structure and Noncovalent Interactions

Fine‐Tuning Plasmon‐Molecule Interactions in Gold‐BODIPY Nanocomposites: The Role of Chemical Structure and Noncovalent Interactions

Noble Metal Nanoparticles-Based Colorimetric Biosensor for Visual Quantification: A Mini Review

Latest Novelties on Plasmonic and Non-Plasmonic Nanomaterials for SERS Sensing

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