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Recent advances in electrochemical sensing and remediation technologies for ciprofloxacin

Environmental Science and Pollution Research 2025年第5期32卷 2210-2237页

作者： Kini, Vrinda C S, Sreelakshmi Mondal, Debasmita Sundarabal, Nethaji Nag, Pooja Sadani, Kapil Department of Instrumentation and Control Engineering Manipal Institute of Technology Manipal Academy of Higher Education Karnataka Manipal India Department of Microbiology Kasturba Medical College Manipal Academy of Higher Education Karnataka Manipal India Department of Electrical and Instrumentation Engineering Thapar Institute of Engineering and Technology Punjab Patiala India Department of Chemical Engineering Manipal Institute of Technology Manipal Academy of Higher Education Karnataka Manipal India Department of Mechatronics Manipal Institute of Technology Manipal Academy of Higher Education Karnataka Manipal India

Ciprofloxacin (CIP) is an extensively used broad-spectrum, fluoroquinolone antibiotic used for treating diverse bacterial infections. Effluent treatment plants (ETPs) worldwide lack technologies to detect or remediate antibiotics. CIP reaches the aquatic phase primarily due to inappropriate disposal practices, lack of point-of-use sensing, and preloaded activated charcoal filter at ETPs. The co-existence of bacteria and CIP in such aqueous pools has promoted fluoroquinolone resistance in bacteria and should be minimized. The worldwide accepted standard detection methodologies for the detection of CIP are high-performance liquid chromatography and mass spectrometry, which are lab-based, require state-of-the-art equipment, and are expensive. Hence, it is difficult to integrate them for on-site monitoring. Further, the current remediation technologies like conventional sludge-treatment techniques fail to remove antibiotics such as CIP. Several point-of-use technologies for the detection of CIP are being investigated. These typically involve the development of electrochemical sensors where substrates, modifiers, biorecognition elements, and their chemistries are designed and optimized to enable robust, point-of-use detection of CIP. Similarly, remediation techniques like adsorption, membrane filtration, ion exchange, photocatalysis, ozonation, oxidation by Fenton’s reagent, and bioremediation are explored, but their onsite use is limited. The use of these sensing and remediation technologies in tandem is possibly the only way the issues related to antimicrobial resistance may be effectively tackled. This article provides a focused critical review on the recent advances in the development of such technologies, laying out the prospects and perspectives of their synergistic use to curb the menace of AMR and preserve antibiotics. © The Author(s) 2025.

关键词： High performance liquid chromatography

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A two-wheeled robotic wheelchair with a slidable seat for elderly and people with lower limb disabilities

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International Journal of Advanced Robotic Systems 2025年第3期22卷

作者： Kim, Munyu Park, Jongwoo Shin, Heechul Seo, Hyunuk Il Park, Dong Park, Chanhun Cheong, Joono Department of Robotics and Mechatronics Korea Institute of Machinery and Materials Daejeon34103 Korea Republic of Department of Control and Instrumentation Engineering Korea University Sejong City30019 Korea Republic of

This paper introduces a new development of a two-wheeled robotic wheelchair (TWW), designed to address the challenges of personal mobility for the elderly and individuals with lower limb disabilities. By incorporating a sliding seat mechanism and motorized support legs, the TWW enhances stability, comfort, and accessibility in narrow or uneven environments. Notably, the TWW has a minimum turning radius of 0.372[m], enhancing convenience in confined spaces. A dynamic inversion-based motion planner is developed to provide smooth and stable driving experiences by accurately converting user inputs into optimal trajectories. Furthermore, the system prioritizes safety through real-time fault detection, ensuring reliability in various scenarios. Experimental results validate the system’s enhanced posture stability and safety, highlighting its potential for a wide variety of applications in daily mobility and rehabilitation support. © The Author(s) 2025.

关键词： Motion planning

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A domain decomposition strategy for natural imposition of mixed boundary conditions in port-Hamiltonian systems

arXiv

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arXiv 2025年

作者： de Jong, Sjoerd D.M. Brugnoli, Andrea Rashad, Ramy Zhang, Yi Stramigioli, Stefano Department of Microelectronics Delft University of Technology Delft Netherlands ICA Université de Toulouse ISAE–SUPAERO INSA CNRS MINES ALBI UPS Toulouse France Control and Instrumentation Engineering Department King Fahd University of Petroleum and Minerals Saudi Arabia School of Mathematics and Computing Science Guilin University of Electronic Technology Guilin China Robotics and Mechatronics Department University of Twente Netherlands

[Abstract] In this contribution, a finite element scheme to impose mixed boundary conditions without introducing Lagrange multipliers is presented for wave propagation phenomena described as port-Hamiltonian systems. The strategy relies on finite element exterior calculus and a domain decomposition to interconnect two systems with different causalities. The spatial domain is split into two parts by introducing an arbitrary interface. Each subdomain is discretized with a mixed finite element formulation that introduces a uniform boundary condition in a natural way as the input. In each subdomain the spaces are selected from a finite element subcomplex to obtain a stable discretization. The two systems are then interconnected together by making use of a feedback interconnection. This is achieved by discretizing the boundary inputs using appropriate spaces that couple the two formulations. The final systems includes all boundary conditions explicitly and does not contain any Lagrange multiplier. Each subdomain is integrated using an implicit midpoint scheme in an uncoupled way from the other by means of a leapfrog scheme. The proposed strategy is tested on three different examples: the Euler-Bernoulli beam, the wave equation and the Maxwell equations. Numerical tests assess the conservation properties of the scheme and the effectiveness of the methodology. © 2025, CC BY.

关键词： Lagrange multipliers

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Robust attitude control of low earth orbit small satellite subject to actuator saturation

Robust attitude control of low earth orbit small satellite s...

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7th Annual International Conference on Electrical engineering/Electronics, Computer, Telecommunications and Information Technology, ECTI-CON 2010

作者： Artitthang, Peerawat Malyavej, Veerachai Aorpimai, Manop Department of Control Instrumentation and Mechatronics Faculty of Engineering Mahanakorn University of Technology Bangkok Thailand

ISBN: (纸本)9789746724913

The electromagnetic torquer is the most common method to generate torque for attitude control of low earth orbit (LEO) small satellite. Due to power consideration, an actuator saturation is one of serious problem in practice. In this paper, we propose the scheme to design the robust controller to stabilize a satellite attitude by considering the actuator saturation as a structured uncertainty which is based on integral quadratic constraint. The proposed robust controller is of linear time varying controller that has similar structure as conventional linear quadratic regulator (LQR). The simulation results show that our proposed robust controller outperforms an LQR controller.

关键词： Attitude control

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Periodic robust magnetic attitude control of low earth orbit small satellite

Periodic robust magnetic attitude control of low earth orbit...

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30th IASTED Conference on Modelling, Identification, and control, AsiaMIC 2010

作者： Artitthang, Peerawat Malyavej, Veerachai Aorpimai, Manop Department of Control Instrumentation and Mechatronics Faculty of Engineering Mahanakorn University of Technology Bangkok Thailand

ISBN: (纸本)9780889868571

In this paper, we consider the periodic robust controller for attitude control of satellites in low-earth orbit (LEO). An 3-axis Magnetic torquer is assumed to be the only actuator available for the control task. The proposed linear periodic control scheme is based on a periodic modeling of the Earth's magnetic field. Deviation of the actual geomagnetic field from the nominal model is considered as structured uncertainty that satisfies an integral quadratic constraint. The proposed controller is, therefore, robust against input torque uncertainty which is suitable for practical application. The control scheme has been verified via a computer simulation. A scenario where a small satellite is orbiting in circular LEO environment is assumed. The results show that the performance of the proposed periodic controller is better than conventional optimal controller both on error suppression ability and less power consumption.

关键词： Attitude control

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Robust magnetic attitude control of low-orbit small satellite

Robust magnetic attitude control of low-orbit small satellit...

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12th IASTED International Conference on Intelligent Systems and control, ISC 2009

作者： Malyavej, Veerachai Artitthang, Peerawat Aorpimai, Manop Department of Control Instrumentation and Mechatronics Faculty of Engineering Mahanakorn University of Technology Bangkok Thailand

ISBN: (纸本)9780889868144

The magnetic torque coupled form the Earth's magnetic field is the most fundamental technique to generate torque for attitude control of low Earth orbit small satellites. The Earth's magnetic field is time varying as well as nonuniform distribution around the globe. Hence, normally there is large variation of the magnetic field from the nominal one using in controller design. In this work, we apply the robust control for the low Earth orbit small satellite actuated only by magnetic torque. The proposed controller, based on integral quadratic constraint, is of linear and robust respect to the input torque uncertainty. The complexity of computing the controller gain is the same as linear quadratic controller that can be computed off-line and stored in memory. The simulation results show that the performance of the proposed method is better than the optimal controller in the present of input magnetic torque uncertainty.

关键词： Attitude control

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Unmanned ground vehicle localization by dead-reckoning/GPS sensor fusion

Unmanned ground vehicle localization by dead-reckoning/GPS s...

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7th Annual International Conference on Electrical engineering/Electronics, Computer, Telecommunications and Information Technology, ECTI-CON 2010

作者： Malyavej, Veerachai Torteeka, Peerapong Department of Control Instrumentation and Mechatronics Faculty of Engineering Mahanakorn University of Technology Bangkok Thailand

ISBN: (纸本)9789746724913

In autonomous navigation systems, localization is the most important problem to be solved. In this note, we propose the algorithm to localize an unmanned ground vehicle (UGV) equipped with a global positioning system (GPS), an odometer and an electronic compass. The proposed scheme is based on the unscented Kalman filter (UKF). To improve the accuracy and robustness, the novel noise model of data from an electronic compass is incorporated in the system modeling. The performance of our simple algorithm is evaluated by the experimental results that strongly confirm the benefit even during GPS outage in some short period of time.

关键词： Global positioning system

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control of Unmanned Sea Surface Vehicle Using Sliding Mode controller with Saturation function for Defence Application

Control of Unmanned Sea Surface Vehicle Using Sliding Mode C...

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2022 International Conference for Advancement in Technology, ICONAT 2022

作者： Adlinge, Sudam D Shendge, Pramod D Kappagantula, Sivayazi College of Engineering Pune Instrumentation and Control Engineering Pune India Manipal Institute of Technology Manipal Academy of Higher Education Department of Mechatronics Manipal India

ISBN: (纸本)9781665425773

This paper discusses regarding sliding mode controller using saturation function in the design and development of Unmanned Sea Surface Vehicle (USSV). Mathematical model of USSV using sliding mode controller using saturation function is simulated in matlab and results are presented. It shows shortcomings in the linear control strategy such as PID and PD control and how it can be overcome by using sliding mode with saturation function. Using sliding mode control strategy USSV can be used for autonomous operation. Simulation results of each control strategy are discussed along with conclusions. © 2022 IEEE.

关键词： Sliding mode control

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Analysis of actuation characteristics of CuAlNiMn/Polyimide thin film shape memory alloy

Analysis of actuation characteristics of CuAlNiMn/Polyimide ...

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2019 International Mechanical engineering Congress, IMEC 2019

作者： Geetha, M. Dhanalakshmi, K. Jayachandran, S. Palani, I.A. Sathish Kumar, V. Department of Instrumentation and Control Engineering National Institute of Technology Tiruchirappalli620021 India Mechatronics and Instrumentation Lab Discipline of Mechanical Engineering Indian Institute of Technology Indore453331 India Mechanical Engineering Kongunadu College of Engineering and Technology Tiruchirappalli621215 India

The article presents the study of the deformation of an SMA bimorph actuator during static heating. The thermomechanical behavior of thin film CuAlNiMn shape memory alloy (SMA) on polyimide substrate is analyzed using finite element method. The analysis is carried out for three different geometries to obtain the displacement when temperature is varied. The actuation characteristics of the SMA bimorph are studied through direct heating and joule heating techniques. The surface morphology and composition of the bimorph sample are obtained using the Scanning Electron Microscope (SEM). The numerical analysis of the thermomechanical behavior of a thin film CuAlNiMn SMA bimorph is carried out using the finite element method. The procedure is applied for a double-legged cantilever configuration of the bimorph to obtain the actuation in terms of displacement;by varying the temperature. The same is repeated for semi-circular and pentagon shapes of the bimorph to obtain the influence of area on the displacement. It is observed that SMA bimorph displaces with the rise in temperature and the magnitude of displacement increases with the increase in surface area of different geometries. The physical actuation characteristic of CuAlNiMn-polyamide bimorph is studied by thermal heating and electrical heating of the sample, which confirm the shape memory effect of the SMA and provide the displacement characteristics of the bimorph when applying an electrical current. © 2019 Elsevier Ltd.

关键词： Aluminum alloys

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An operational algorithm for satellite attitude determination from GPS carrier phase

An operational algorithm for satellite attitude determinatio...

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2012 9th International Conference on Electrical engineering/Electronics, Computer, Telecommunications and Information Technology, ECTI-CON 2012

作者： Tatiyaworanun, C. Purivigraipong, S. Department of Control and Instrumentation and Mechatronics Engineering Mahanakorn University of Technology Bangkok Thailand Centre for Electronic System Design and Signal Processing Department of Electronic Engineering Mahanakorn University of Technology Bangkok Thailand

ISBN: (纸本)9781467320245

This paper presents an operational approach for determining satellite attitude from carrier phase GPS (Global Positioning System) measurements. A conventional recursive least square (RLS) estimator was implemented without requiring spacecraft dynamics. The proposed approach can be applicable for general space missions, particularly for real-time operation onboard-spacecraft. The attitude angles and electrical path difference (line bias) between antenna chains caused an offset error in GPS observables, can be estimated. The implemented estimator was tested with a simulated data, and the flight data collected onboard a mini-satellite orbiting in low Earth orbit. © 2012 IEEE.

关键词： Global positioning system

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