Significance Nanostructured metamaterials have been engineered to generate a wide range of optical phenomena, allowing an unprecedented control over the propagation light. However, they are generally designed as single-purpose devices without modifiable response, which can be barrier applications. In this work, we report nontrivial infiltration nanostructured planar silica metalens with nematic liquid crystals. We then demonstrate measurable change in response after infiltration. Since...

Hydrogen (H₂) sensing is crucial in a wide variety of areas, such as industrial, environmental, energy and biomedical applications. In this work, aluminum-doped zinc oxide (AZO) nanotubes are reported for optical hydrogen sensing.

Glioblastoma multiforme (GBM) is one of the deadliest and most aggressive cancers, remarkably resilient to current therapeutic treatments. Here, we report preliminary in vivo studies GBM treatments based on photo-nanotherapeutics activate synergistic killing mechanisms. Core-shell nanoparticles have been weaponized by combining photophysical properties a new generation PDT agent (Ir(III) complex) with thermoplasmonic effects resonant gold nanospheres. In order investigate damages induced...

Indian General Election 2019 was one of the major global political events. The prominence social media in contemporary life, and ubiquity messaging on it has necessitated a systematic study sentiments make inferences about future moods trends. In absence standard tools or software we propose machine learning-based generic system framework REST (Representation State Transfer) plugin component, that extracts filters authentic tweets from Twitter, captures prevalent mood, predicts sentiment any...

RNA splicing normally generates stable splice- junction sequences in viruses that are important the context of virus mimicry. Potential variability envelop proteins may occur with point-mutations inducing cryptic splice-junctions, which would remain unrecognized by T-memory cells higher organisms vaccine trials. Such aberrant junctions result from evolution-specific non-conser- vation actual splice-junction sites due to mutations; as such, locations splice-junctions a test DNA sequence could...

Detecting and tracking the position of a mobile user is an increasingly important feature in many applications. In this work we study how cheap energy-efficient air pressure sensors measuring altitude could be used, as complement to dominant GPS system. The cornerstone our approach that huge amount route data, collected with devices, available various cloud services. location detection task thus becomes question matching traces curves stored data find best routes. Here build prototype system...

We report the study of heterodimeric plasmonic nanogaps created between gold nanostar (AuNS) tips and nanospheres. The selective binding is realized by properly functionalizing two nanostructures; in particular, hot electrons injected at trigger a regio-specific chemical link with functionalized AuNSs were synthesized simple, one-step, surfactant-free, high-yield wet-chemistry method. high aspect ratio sharp tip collects concentrates intense electromagnetic fields ultrasmall surfaces small...

In this contribution experimental evidence of plasmonic edge modes and acoustic breathing in gold nanostars (AuNSs) is reported. AuNSs are synthesized by a surfactant-free, one-step wet-chemistry method. Optical extinction measurements confirm the presence localized surface plasmon resonances (LSPRs), while electron energy-loss spectroscopy (EELS) using scanning transmission microscope (STEM) shows spatial distribution LSPRs reveals modes. Plasmonic hot-spots generated at pinnacle sharp...

Noise removal in images is an important and growing field of research the present day. Many image processing techniques exist with new being proposed quite frequently, among which median filtering based are popular for their relative simplicity compared to other non-linear techniques, as well accuracy they generally provide denoising image, especially linear methods. Typical categories noise may solely or combination a noisy such impulse noise, Gaussian speckle noise. The current paper...

Purpose Detecting and tracking the position of a mobile user has become one important subjects in many applications. Such applications use location based services (LBS) for learning training movements different places (cities, markets, airports, stations) along modes transport (bus, car, cycle, walk). To date, GPS is key solution to all LBS but repeated querying not economical terms battery life phone. The purpose this paper study how cheap energy‐efficient air pressure sensors measuring...

Real time (label-free) detection and sizing of single protein molecule at its natural state is "holy grail" in biosensing field. This non-destructive technique useful for predicting the dangerous diseases very early-stage. Herein, we report synthesis characterization efficient nanoplasmonic antennas, which could be to fabricate an ultrasensitive nanoplasmonic-whispering gallery mode hybrid microresonator real molecule. easily converted as biosensor by anchoring suitable anti-bodies on...

This work reports the study of two-photon induced properties a highly luminescent cyclometalated Ir(III) complex, [Ir(ppy)2(en)] OOCCH3 (1), ppy = 2-phenylpyridine, en ethylenediamine. Steady-state and time-resolved fluorescence measurements were performed by exciting 1 at biologically relevant wavelength 800 nm, whereas, generation singlet oxygen (1O2) was evaluated using 9,10-Anthracenediyl-bis(methylene)dimalonic acid (ABDA) as detection probe. Preliminary in vitro experiments with U87-MG...

We report experimental demonstration of a Fano type resonant structure for simultaneous realization change in external temperature and refractive index.The has been made by depositing hybrid nano-composite on silver thin film.The study also done adding dielectric silica spacer layer between the film.In plasmonic gold nanorods are synergistically integrated with Pnipam, thermo-responsive polymer.Here resonance arises from near field coupling narrow localised surface plasmon (LSP) mode broad...

Generalized Brewster effect is a phenomenon where light of both TE (S-) and TM (P-) polarization transmit through surface with no reflection for particular incident angle. angle (GBA) in visible near-infrared (NIR) wavelength region very useful many scientific technical areas applications. However, it rare to find material having this as demands dielectric magnetic response that range usually extremely weak the optical wavelengths. Here we demonstrate GBA an anisotropic composed highly...

Glioblastoma multiforme (GBM) is one of the deadliest and most aggressive cancers, remarkably resilient to current therapeutic treatments. Here, we report in vivo studies GBM treatments based on photo-nanotherapeutics able induce synergistic killing mechanisms. Core-shell nanoparticles have been weaponized by combining photophysical properties an Ir(III) complex - a new generation PDT agent with thermo-plasmonic effects resonant gold nanospheres. To investigate damages induced treated these...

Hydrogen sensing is crucial in a wide variety of areas, such as industrial, environmental, energy and biomedical applications. However, engineering practical, reliable, fast, sensitive cost-effective hydrogen sensor, persistent challenge. Here we demonstrate using aluminum-doped zinc oxide (AZO) metasurfaces based on optical read-out. The proposed system consists highly ordered AZO nanotubes (hollow pillars) standing SiO2 layer deposited Si wafer. Upon exposure to gas, the nanotube shows...

In virology context, a particular virus may prevail in different forms of serotypes (as the case dengue 1-4 viral strains) with common and distinct genomic features. Finding such details serogroup is useful knowing related information for unique vaccine designs compatible immunity across diversity. For robust comparison genomes serovars order to decide on their differential details, proposed here set sequence analyses exercised side-by-side via entropy, energetic spectral-domain methods....