A hemoglobin (Hb) modified glassy carbon electrode consisting of low cost as commercially received impure-multiwalled nanotube (i-MWCNT, 90% purity) and nafion (GCE/i-MWCNT@Hb/Nf) has been demonstrated for improved electric wiring Hb efficient direct electron-transfer characteristics. This report is the first attempt coupling i-MWCNT with biosensor purpose. The was assembled by a simple preparation procedure within 38.3 (±2.5) min time, without any linker, surfactant, promoters, extensive...

1,10-Phenanthroline (Phen) is a well-known benchmark ligand and has often been used in the coordination chemistry for complexation of transition metal ions, such as Fe(2+), Ni(2+), Co(2+). Because electro-oxidation potential Phen much higher (>2 V versus Ag/AgCl) than water decomposition potential, i.e., ∼1.5 Ag/AgCl, pH 7, it practically difficult to electro-oxidize aqueous medium using any conventional electrodes, glassy carbon electrode (GCE), gold, platinum. Interestingly, herein, we...

A new biomimetic functional system having an impure multiwalled carbon nanotube (MWCNT-Fe)-chitosan biopolymer (H2N-CHIT) chemically modified glassy electrode (GCE/[MWCNT-Fe:H2N-CHIT]) has been developed and demonstrated efficient hydrogen peroxide electrocatalytic electrochemical sensing applications in pH 7 phosphate buffer solution (PBS). The hybrid showed a stable well-defined surface confined redox peak at apparent potential, E°'=-0.22 V versus Ag/AgCl with excess value 13.63 nmol...

Extension of photoactivity TiO2 to the visible region is achievable via effective control over intrinsic defects such as oxygen and Ti vacancies, which has several applications in photocatalysis sensing. We present here first observation an apparent bandgap narrowing tuning effect due vacancy cluster transformation rutile structures 1.84 eV from bulk 3 eV. A gradual divacancies (V Ti–O) tri vacancies () achieved through a controlled solvothermal scheme appears result tunability, supported by...

This paper proposes an IoT based smart energy meter designed to monitor and manage electricity consumption efficiently. The system utilizes a combination of sensors technology provide real-time monitoring usage. It integrates measurement module, microcontroller Arduino UNO, ESP8266 Wi-Fi cloud platform ThingSpeak for data visualization analysis. Key electrical parameters such as voltage, current, power, power factor, frequency are measured transmitted the remote access. enables users their...

Redox active cobalt-bipyridine based metal organic framework ([Co(bpy)2NO3]NO3.5H2O = Co-bpy) immobilized on multiwalled carbon nanotubes using Nafion ionomer (GCE/MWCNTs@Co-bpy/Nf) was explored as sensor for ascorbic acid (AA) detection. In order to identify the suitable pH AA sensing, both sensitivity and detection limit (DL) values were calculated at various pHs optimum identified is 7. To prove sensing capability of this electrode, real samples like tablets containing such Limcee orange...

<p>The Internet of things (IoT) is a major source for technology solutions in many industries. The IoT can consider, Wireless Sensor Network (WSN) as the backbone network to reduce formation or advent new technology. Integration these would burden and form smart sensor node with nodes given access internet. WSN already legacy system that has percolated into Thus by integration no huge paradigm shift needed industries.</p>

There is an increase in crime rates due to the rapid population growth and lack of enough security systems monitor city population. The crimes cities primarily affect elderly women living alone their homes. Smart Home are a promising development that addresses monitoring issues faced by citizens big cities. This work presents unique Internet Things (IoT) based intelligent home system integrated with object detection classification using deep learning enhance surveillance system. Our helps...

Purpose The paper aims to examine the boundary layers of a three-dimensional stagnation point flow Al-Cu nanoparticle-suspended water-based nanofluid in an electrically conducting medium. effect magnetic field on second-order slip and convective heating is also taken into account. Design/methodology/approach thermophysical properties alloy nanoparticles such as density, specific heat capacity thermal conductivity are computed using appropriate formula. non-linear parabolic partial...

Developments of new decomposition or degradation methods environmentally hazardous azo dyes from textile industries are very important. Usually, strong acid-based chemical/electrochemical and neutral pH-based bacterial were widely used. Here, we report a mild, simple, facile electrochemical method for dye (Sudan yellow; SY) into highly redox active copolymer polyanilines via aniline derivatives as intermediates on MWCNT modified glassy carbon electrode (GCE/MWCNT) surface unusually in pH...

Abstract A copper‐benzotriazole metal‐organic framework (MOF) was assembled on multiwalled carbon nanotubes (MWCNTs@BTAH‐Cu 2+ ) by π‐π interaction, and the composite used to catalyze oxygen reduction reaction (ORR) in pH 7, 11, 13. This electrode catalyzes ORR through a surface‐confined redox‐mediated process of Cu /Cu + redox couple. BTAH adsorbed MWCNTs, benzimidazole‐Cu system pristine MWCNTs were as reference systems illustrate importance couple for ORR. kinetics characterized using...

Carbazole-1,4-quinone is a key structural unit of naturally occurring carbazole-quinone alkaloids, for instance, 3-methyl carbazole-1,4-quinone (Murrayaquinone), that are widely used in pharmaceutics and medicine. These compounds generally synthesized from tetrahydro ketone derivatives by multistep synthetic routes. Until now, there no direct method reported the partial oxidation carbazole to chemical, biochemical, or electrochemical reaction Literature survey on its suggests polymeric...

Aquotris(benzotriazole)sulfatocopper(II).benzotriazole (BTAH-Cu2+) framework was assembled (exploiting π-π interactions) on MWCNTs modified glassy carbon electrode (GCE/MWCNTs@BTAH-Cu2+) for efficient sensing of hydrogen peroxide in pH 7 phosphate buffer solution (PBS). The electrodes showed stable and well-defined surface confined redox peak at an apparent potential, Eo' = −182 mV vs. Ag/AgCl with excess value 5.519 nmol cm−2. Structural, physicochemical electrochemical characterizations by...

Development of novel composite materials with enhanced optical properties and modified surface morphology is highly significant in Raman spectroscopic (SERS) applications. Dielectric-plasmonic multilayer composites are found to serve this purpose due the feasibility tuning their plasmon resonances even IR region, far away from electronic resonance analyte molecules. In work, we introduce a new material that can have enormous potential sensing applications at trace level. Here demonstrate...

In this paper we design and implement an embedded surveillance system by use of ultrasonic signal coding sensors with multiple pyroelectric infrared (PIR) to detect intruder in a home or storehouse. If the any trespasser, then camera will captured image. After that image compared database. it is not similar be send number which was stored MMS modem as MMS. The PIR are placed on ceiling, sensor modules line direction may consist transmitter receiver. Ultrasonic used reduce high miss rate....

The multiple Traveling Salesman Problem (mTSP) is the general type of TSP, in which at least one than sales representatives can be utilized as a part arrangement set. Constraint improvement undertaking that every representative comes back to beginning stage end outing, heading out particular urban areas middle and with exception first, last city gone by precisely representative. thought scan for briefest course slightest separation required salesperson go from area individual where he has...