A5008491302- Luminescence and Fluorescent Materials
- Molecular Sensors and Ion Detection
- Analytical Chemistry and Sensors
- Carbon and Quantum Dots Applications
- Nanocluster Synthesis and Applications
- Conducting polymers and applications
- Laser-Ablation Synthesis of Nanoparticles
- Organic Light-Emitting Diodes Research
- Advanced biosensing and bioanalysis techniques
- Perovskite Materials and Applications
- Polydiacetylene-based materials and applications
- Islanding Detection in Power Systems
- Gold and Silver Nanoparticles Synthesis and Applications
- Spectroscopy and Chemometric Analyses
- Graphene and Nanomaterials Applications
- Fault Detection and Control Systems
- Mineral Processing and Grinding
- Gas Sensing Nanomaterials and Sensors
- Advanced Sensor and Energy Harvesting Materials
- Molecular Junctions and Nanostructures
- Advanced Statistical Process Monitoring
- Luminescence Properties of Advanced Materials
- Laser Applications in Dentistry and Medicine
- Microbial Metabolism and Applications
- GABA and Rice Research
University of Tsukuba
2025
Indian Institute of Technology Roorkee
2011-2024
Yeungnam University
2024
University of Alberta
2003-2022
Sri Sathya Sai Institute of Higher Learning
2014
Clemson University
2014
Detection of nitroaromatic explosives with high sensitivity and selectivity is extremely important for civilian military safety. Here, we report the synthesis multimodal sensing applications an emissive alanine based dansyl tagged copolymer P(MMA-co-Dansyl-Ala-HEMA) (DCP), synthesized by RAFT copolymerization. The fluorescent co-polymer exhibited towards conventional such as DNT, TNT TNP in solution at lower range µM level also saturated vapor NACs. quantum yield was measured to be very (Φf...
Abstract In this work, we report, the synthesis of Boron and Sulfur co-doped graphene quantum dots (BS-GQDs) its applicability as a label-free fluorescence sensing probe for highly sensitive selective detection dopamine (DA). Upon addition DA, intensity BS-GQDs were effectively quenched over wide concentration range DA (0–340 μM) with an ultra-low limit 3.6 μM. The quenching mechanism involved photoinduced electron transfer process from to dopamine-quinone, produced by oxidization under...
We report here that optically resonant donor copolymers are used to amplify the sensitivity of an electron-rich fluorescent copolymer toward electron-deficient nitroaromatic compounds (NACs). In a polymer–polymer system, we found ultrafast Förster resonance energy transfer (FRET) enhances primeval polymer sensor by 6-fold approximately conventional NACs like 2,4-dinitrotoluene (DNT), 2,4,6-trinitrotoluene (TNT), and 2,4,6-trinitrophenol (TNP). The present article reports optical for...
Abstract Intramolecular excitation energy transfer (IET) dynamics and molecular rigidity of a donor‐acceptor system control the lasing efficiency organic gain media. Herein, novel molecule COPV2‐3‐2 , featuring carbon‐bridged oligo( para ‐phenylenevinylenes) (COPV) is reported. In this structure, COPV2 COPV3 serve as photo‐absorptive donor emissive acceptor monomer units, respectively, two identical donors are connected to coplanarly arranged through rigid orthogonal bridges. The rational...
Abstract A well‐known limitation in the fabrication of metal‐graphene composite has been use surfactants that strongly adsorb on surface and reduce performance catalyst. We demonstrate here a novel one‐pot synthesis gold nanoparticles by laser ablation strip in‐situ decoration graphene substrate. Not only impregnation was linker free, but also itself surfactant‐free. The materials were well characterized morphologically functionally using electron microscopy, X‐ray diffraction, Raman...
Proper allocation of wind turbine DG unit is essential, as inappropriate the may adverse system performance. The supplies real power and in turn absorbs reactive power. This paper proposes application Particle Swarm Optimization (PSO) technique to find optimal placement primary distribution reduce losses improvement voltage profile. results are verified with analytical approach which uses expressions characteristics for proper deployment effects on performance investigated. In first segment,...
Abstract Electrospinning is an efficient technique to fabricate nanofibers of controlled diameter and uniform morphology. Herein, we report a low‐cost high‐yield route PAN/DAC composite its use for vapor sensing 2,4‐Dinitrotoluene (DNT) 2,4,6‐Trinitrotoluene (TNT) with detection level in the range parts‐per‐billion. Furthermore, ability photo‐induced electron transfer mechanism DAC towards DNT TNT solution phase were also investigated detail via absorption, steady‐state, time‐resolved...
Abstract Conjugated polymers (CPs) can potentially provide an alternative to conventional fluorescent microsphere technologies; however, examples of CP microspheres encompassing extensive range sizes are few, and wide‐ranging spectral control, as needed for many applications, has never been demonstrated. Blended consisting individual synthesized here. They blended have widely separated Commission Internationale de l'Éclairage (CIE) color coordinates a compatible synthesis while at the same...
Abstract This work synthesizes a green‐fluorescent conjugated polymer and performs basic photophysical characterization of this new material. Atums Green [1] is synthesized by Suzuki cross‐coupling polymerization reaction between isostructural dibromo diboronic acid monomers structurally characterized nuclear magnetic resonance gel permeation chromatography. The consists an alkoxy‐substituted 1,4‐bis((E)‐styryl)benzene repeating unit with molecular weight up to M n = 50 kDa relative...
The high pressure LDPE (low density polyethylene) industrial process operates under supercritical conditions, and so it is necessary to monitor its performance prevent abnormal situations. Extreme deviations from the normal operating region lead conditions such as: loss of reaction, decompositions reactants, lost production due outages. Multivariate Statistical Process Control strategies operate on top DCS (distributed control system) detect diagnose behavior provide operators an opportunity...
Principal component analysis (PCA) and partial least square (PLS) used for fault diagnosis process monitoring systems. It is expected that the information to be examined isn't self-connected. However, most large[1]scale chemical industrial plants are nonlinear in nature so these techniques do not cope with them, invalid nature. To fulfil gap, there need develop an algorithm which can manage nonlinearities of process. The demands products increasing rapidly different adaptable being proposed....