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Sol–gel‑templated bioactive glass scaffold: a review

Research on biomedical engineering 2024年第1期40卷 281-296页

作者： Shoushtari, Maryam Sarmast Hoey, David Biak, Dayang Radiah Awang Abdullah, Norhafizah Kamarudin, Suryani Zainuddin, Halimatun S. Department of Chemical & amp Environmental Engineering Faculty of Engineering Universiti Putra Malaysia Selangor Serdang43400 Malaysia Trinity Centre for Biomedical Engineering Trinity Biomedical Sciences Institute Trinity College Dublin Dublin Ireland Department of Mechanical Manufacturing and Biomedical Engineering School of Engineering Trinity College Dublin Dublin Ireland Advanced Materials and Bioengineering Research Centre Trinity College Dublin & ampRCSI Dublin Ireland Institute of Nanoscience and Nanotechnology Universiti Putra Malaysia Selangor Serdang43400 Malaysia

Purpose: This review paper explores diverse synthesis strategies within the sol–gel technique for producing silicate bioglass with a focus on tailoring these materials for bone scaffold design. Method: A comprehensive search was conducted across various databases, including ScienceDirect, Taylor & Francis, PubMed, Hindawi, Royal Society of Chemistry (RSC), Wiley Online Library, ResearchGate, and Google Scholar, using keywords such as "silica bioglass," "Sol–gel technique," "Templating," and "Bone scaffold." The analysis considered variables such as the sol–gel method, the templating approach, and materials used to fabricate silica bioglass bone scaffolds. Out of 140 initially identified studies, 92 were selected for detailed review published within the last two decades. Result and conclusion: In this study, the effect of the sol–gel fabrication technique on the improvement of the structure of silicate bioglass bone scaffolds has been reviewed, along with a consideration of the associated advantages and disadvantages. Specifically, the focus of this study was on the templating sol–gel method and its direct impact on morphology and pore structures. Consequently, these findings have evaluated the development of templating sol–gel fabrication techniques for enhancing the bioactivity and biocompatibility of bone scaffolds. © The Author(s) 2024.

关键词： Bioactive glass

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Armor Guard: Revolutionizing Motorcycle Safety with Smart Helmet 1

Armor Guard: Revolutionizing Motorcycle Safety with Smart He...

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1st International Conference on Computing, Sciences and Communications, ICCSC 2024

作者： Abitha, S.B. Santhoshi, R. Sangameswaran, B.B. Shivashanker, Kondooru Balakrishnan, S. Tharun, V. Velalar College of Engineering and Technology Department of Medical Electronics Erode India Mahendra Institute of Technology. Department of Biomedical Engineering India KSR Institute for Engineering and Technology. Department of Biomedical Engineering India SKN Sinhgad College of Engineering Department of Electrical Engineering Maharashtra Pandharpur India Nandha Engineering College Department of Mechanical Engineering Erode India

ISBN: (纸本)9798350353648

Motorcycle accidents continue to be a significant concern worldwide, with riders facing various risks on the road. In response to these challenges, The design and development of a smart helmet system, intended to improve rider safety and encourage responsible riding, is presented in this study. The smart helmet integrates cutting-edge technologies and innovative features to provide a comprehensive safety solution for motorcycle riders. Key functionalities of the smart helmet include advanced navigation assistance, seamless call management, proactive accident detection, real-time alcohol detection, fog removal, and backlight indicators. These features are designed to improve visibility, prevent accidents, and ensure compliance with safety protocols. The smart helmet has a safety feature that prevents the vehicle from turning on unless the person wearing the helmet follows specific safety requirements. Additionally, an LED stripe integrated into the helmet's visor assists in fog removal, while a backlight indicator at the back of the helmet enhances visibility to fellow riders. Testing and evaluation of the smart helmet system demonstrate its functionality, reliability, and effectiveness in real-world scenarios. Response time testing confirms the system's prompt detection and response to various events, such as helmet activation and accident detection. The research also identifies areas for future work, including the integration of advanced sensor technologies, enhanced communication and connectivity, AI and machine learning applications, and improvements in energy efficiency and user experience. © 2024 IEEE.

关键词： Motorcycles

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Fluid Path Detection Model for Lab on a Chip Images Using Deep Learning-Based Segmentation Approach 37

Fluid Path Detection Model for Lab on a Chip Images Using De...

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37th International Florida Artificial Intelligence Research Society Conference, FLAIRS 2024

作者： Khalghollah, Mahmood Shakeri, Esmaeil Zare, Azam Far, Behrouz H. Sanati-Nezhad, Amir Department of Electrical and Software Engineering Schulich School of Engineering University of Calgary Canada Department of Mechanical and Manufacturing Engineering Schulich School of Engineering University of Calgary Canada Department of Biomedical Engineering Schulich School of Engineering University of Calgary Canada

This paper explores the potential of Lab on a Chip (LOC) technologies in transforming diagnostic, biotechnology, and chemical/mechanical analysis fields. The proposed solution integrates advanced image processing into an automated tool, providing a robust and efficient method for precise data extraction from microfluidic chip images. In this study, we identify the fluid path in each frame, thereby improving the platform for tracking valuable fluid parameters over time, such as the viscosity of biofluids. Different patterns of LOC were developed then captured and related masks were established to create the 150 images dataset. Using the DeepLabv3+ deep learning model on the dataset, this study achieves remarkable validation accuracy of 98.95% and a low loss value of 0.012 for chip analysis path segmentation. The successful integration of DeepLabv3+ and meticulous preprocessing enhances understanding of fluid behavior within microfluidic chips, paving the way for advancements in chip design, diagnostics, and fluid feature-based analyses. Copyright © 2024 by the authors.

关键词： Microfluidic chips

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Comparative study of different controllers in an autonomous vehicle system

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Materials Today: Proceedings 2023年 80卷 2390-2393页

作者： Balaji, T.S. Srinivasan, S. Research Scholar Department of Electronics and Communication Engineering Saveetha School of Engineering SIMATS Tamil Nadu Chennai India Professor and Program Director Department of Biomedical Engineering Saveetha School of Engineering SIMATS Tamil Nadu Chennai India

In recent days the entire world moving towards autonomous driving vehicle. For the last decades, the world started more research on Autonomous or Auto-pilot vehicle. It faces lot of challenges to design such a system. In recent, Google and tesla designs an autonomous vehicle in the name of waymo. The main aim of this research work is to provide healthy transportation with high safety and security. This waymo vehicle is now under testing with conditional and unconditional environment. In this paper it is focused on a controller part to take care of the vehicle in critical and non-critical environmental situation. In this perception, this research gives the overview of the various controllers with its merits and demerits. The controller is to imitate like a human driver. Normally the human eye focus on mobile and immobile objects, road sign, pedestrian etc., the controller need to focus the road condition, optimal steering control with less tracking error and cruise control. © 2021

关键词： Autonomous vehicles

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Assess the Level of Temperature Uniformity in Intermediate Level Incubators Type Incandescent Lamp and Heater Plate 3rd

Assess the Level of Temperature Uniformity in Intermediate L...

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3rd International Conference on Experimental and Computational Mechanics in engineering, ICECME 2021

作者： Riswandha, Ditya Syuhada, Ahmad Hamdani of Mechanical Engineering Study Program Department of Mechanical and Industrial Engineering Faculty of Engineering Universitas Syiah Kuala Banda Aceh Indonesia

ISBN: (纸本)9789811936289

One of the business activities favored by the villagers is poultry farming. This happened because the harvest period is fast and the market is easy, especially for public consumption in the province of Nanggroe Aceh Darussalam. Due to the large number of people who are trying to raise ducks, chickens, and laying eggs, problems have arisen with the provision of these poultry seeds. So far, poultry seeds in the Aceh Province have been obtained from a small portion of the populationAcehnese themselves and the rest were imported from North Sumatra. This causes the fluctuating supply of seed poultry which will eventually disrupt the community's poultry farming business in Aceh Province. Seeing these problems, this research wants to produce a multilevel incubator heating system that maintains a uniform temperature for better incubator efficiency. The test is carried out by paying attention to the temperature distribution in the egg incubator. Thus, measuring the distribution temperature with a value range of 37 °C–38 °C at certain points through the test channel is the main thing that must be done. The variation in this research is the number of incandescent lamps/heating plates (4 and 6) which differs whether or not the zinc plate is under the incandescent lamp/heating plate with a power of 100 and 112 Watts for each heater. The heater in the incubator room will turn on at 37 °C and will turn off automatically at 38 °C due to the influence of the thermostat equipment. After testing, the temperature was 0.7 °C for 4 (four) heating plates without using a zinc plate under the heating plate and 0.8 °C for 4 (four) incandescent lamps without using a zinc plate under the incandescent lamp. However, there is a small comparison, namely 0.4 °C for 6 (six) heating plates using a zinc plate under the heating plate and 0.5 °C for 6 (six) light bulbs using a zinc plate under an incandescent lamp. Also 96% test results with various methods. It is a good heat transfer and efficient pro

关键词： Incandescent lamps

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Improving Pediatric Pneumonia Diagnosis with Adult Chest X-ray Images Utilizing Contrastive Learning and Embedding Similarity 46

Improving Pediatric Pneumonia Diagnosis with Adult Chest X-r...

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46th Annual International Conference of the IEEE engineering in Medicine and Biology Society, EMBC 2024

作者： Zunaed, Mohammad Hasan, Anwarul Hasant, Taufiq Qatar University Department of Mechanical and Industrial Engineering Doha Qatar Bangladesh University of Engineering and Technology MHealth Lab Dept. of Biomedical Engineering Dhaka Bangladesh Johns Hopkins University Department of Biomedical Engineering BaltimoreMD United States

ISBN: (纸本)9798350371499

Despite the advancement of deep learning-based computer-aided diagnosis (CAD) methods for pneumonia from adult chest x-ray (CXR) images, the performance of CAD methods applied to pediatric images remains suboptimal, mainly due to the lack of large-scale annotated pediatric imaging datasets. Establishing a proper framework to leverage existing adult large-scale CXR datasets can thus enhance pediatric pneumonia detection performance. In this paper, we propose a three-branch parallel path learning-based framework that utilizes both adult and pediatric datasets to improve the performance of deep learning models on pediatric test datasets. The paths are trained with pediatric only, adult only, and both types of CXRs, respectively. Our proposed framework utilizes the multi-positive contrastive loss to cluster the classwise embeddings and the embedding similarity loss among these three parallel paths to make the classwise embeddings as close as possible to reduce the effect of domain shift. Experimental evaluations on open-access adult and pediatric CXR datasets show that the proposed method achieves a superior AUROC score of 0.8464 compared to 0.8348 obtained using the conventional approach of join training on both datasets. The proposed approach thus paves the way for generalized CAD models that are effective for both adult and pediatric age groups. © 2024 IEEE.

关键词： Contrastive Learning

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3D-printed,citrate-based bioresorbable vascular scaffolds for coronary artery angioplasty

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Bioactive Materials 2024年第8期38卷 195-206页

作者： Yonghui Ding Liam Warlick Mian Chen Eden Taddese Caralyn Collins Rao Fu Chongwen Duan Xinlong Wang Henry Ware Cheng Sun Guillermo Ameer Centre for Advanced Regenerative Engineering(CARE) Northwestern UniversityEvanstonIL 60208USA Department of Biomedical Engineering Northwestern UniversityEvanstonIL 60208USA Department of Materials Science and Engineering Northwestern UniversityEvanstonIL 60208USA Department of Mechanical Engineering Northwestern UniversityEvanstonIL 60208USA Department of Surgery Feinberg School of MedicineNorthwestern UniversityChicagoIL 60611USA

Fully bioresorbable vascular scaffolds(BVSs)aim to overcome the limitations of metallic drug-eluting stents(DESs).However,polymer-based BVSs,such as Abbott’s Absorb,the only US FDA-approved BVS,have had limited use due to increased strut thickness(157μm for Absorb),exacerbated tissue inflammation,and increased risk of major cardiac events leading to inferior clinical performance when compared to metallic *** we report the development of a drug-eluting BVS(DE-BVS)through the innovative use of a photopolymerizable,citrate-based biomaterial and a high-precision additive manufacturing *** with a clinically relevant strut thickness of 62μm can be produced in a high-throughput manner,*** BVS per minute,and controlled release of the anti-restenosis drug everolimus can be achieved by engineering the structure of polymer coatings to fabricate drug-eluting *** achieved the successful deployment of BVSs and DE-BVSs in swine coronary arteries using a custom-built balloon catheter and BVS delivery system and confirmed BVS safety and efficacy regarding maintenance of vessel patency for 28 days,observing an inflammation profile for BVS and DE-BVS that was comparable to the commercial XIENCE^(TM)DES(Abbott Vascular).

关键词： coronary inflammation balloon

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Detection of safety wearable's of the industry workers using deep neural network

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Materials Today: Proceedings 2023年 80卷 3064-3068页

Accidents can occur in work place or in place where people are gathering. Many such accidents are preventable. These types of accidents may occur due to carelessness or improper safety wears. These disasters could clearly be maintained a strategic distance from, or its viable force could be decreased with appropriate well-being wear. The fundamental target of this undertaking is to build up a fair-minded computerized framework that checks and investigates the well-being wear of representatives before allowing them to the work region or shop-floor. Along these lines, this framework will mean to forestall mishaps because of inappropriate security wear and the information gathered is utilized for further investigation. Consequently, this system will expect to thwart disasters on account of less than ideal security wear and the data accumulated is used for further investigation. These incidents could clearly be stayed away from, or its viable force could be decreased with appropriate well-being wear. © 2021

关键词： Accident prevention

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Integrated wind farm solutions: Harnessing clean energy for electricity, hydrogen, and freshwater production

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International Journal of Hydrogen Energy 2025年 138卷 1213-1227页

作者： Assareh, Ehsanolah saberipour, Mohammad Ahmadinejad, Mehrdad Keykhah, Mohammad Agarwal, Neha Boudaghi, Farnaz Lee, Moonyong School of Chemical Engineering Yeungnam University Gyeongsan38541 Korea Republic of Department of Renewable Energy Technology Materials and Energy Research Center Dezful Branch Islamic Azad University Dezful Iran Department of Mechanical Engineering Arvandan Non-profit Higher Education Institute Khorramshahr Iran Department of Mechanical Engineering University of Vermont BurlingtonVT United States Department of Chemical Engineering Mahshahr Branch Islamic Azad University Mahshahr Iran Department of Electrical and Biomedical Engineering University of Vermont BurlingtonVT United States

This research explores the design, modeling, and feasibility of a multi-energy wind power plant in South Korea, aimed at producing electricity, fresh water, hydrogen, and oxygen. The main goal of the current study is to help the energy production system that uses the high potential of wind energy in areas with wind potential to increase power and efficiency and reduce harmful environmental effects for the production of hydrogen and fresh water. The system employs a PEM electrolyzer unit and reverses osmosis technology for hydrogen, oxygen, and freshwater generation. The innovation of this study lies in the integration of wind farm design with optimal electricity allocation to electrolyzers, reverse osmosis units, and the grid, maximizing efficiency and sustainability. A comprehensive case study is presented, evaluating the viability of putting the suggested strategy into practice in ten South Korean cities, with a focus on hydrogen production from wind energy. The study investigates ten scenarios for selecting the number of wind turbines, electrolyzers, and reverse osmosis devices, and sixteen scenarios for dividing wind farm coefficients to supply grid electricity, electrolyzer electricity, and reverse osmosis electricity. The optimal result indicates that 5% of wind farm electricity should be allocated to reverse osmosis units, 15% to electrolyzers, and 80% to the grid. The economic analysis indicates that among the system components, the wind farm, reverse osmosis, and PEM electrolyzer represent the highest costs. The system's performance is assessed across ten cities in South Korea, with Yeosu, Incheon, and Busan determined to be the best sites for the proposed power plant because of their strong potential to produce hydrogen using wind energy. Implementing the system in Yeosu, the optimal city, may stop 9664.326 tons of carbon dioxide from being released, generate 47374.15 MWh of electricity, and expand 46 ha of green space. Additionally, selling 9474.83 MW of

关键词： Desalination

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Machinability of ultrasonic vibration-assisted micro-grinding in biological bone using nanolubricant

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Frontiers of mechanical engineering 2023年第1期18卷 115-130页

作者： Yuying YANG Min YANG Changhe LI Runze LI Zafar SAID Hafiz Muhammad ALI Shubham SHARMA School of Mechanical and Automotive Engineering Qingdao University of TechnologyQingdao 266520China College of Physics Qingdao UniversityQingdao 266071China Department of Biomedical Engineering University of Southern CaliforniaLos AngelesCA 90089USA Department of Sustainable and Renewable Energy Engineering University of SharjahSharjah 27272United Arab Emirates Mechanical Engineering Department King Fahd University of Petroleum and MineralsDhahran 31261Saudi Arabia Department of Mechanical Engineering IK Gujral Punjab Technical UniversityJalandhar 144603India

Bone grinding is an essential and vital procedure in most surgical ***,the insufficient cooling capacity of dry grinding,poor visibility of drip irrigation surgery area,and large grinding force leading to high grinding temperature are the technical bottlenecks of micro-grinding.A new micro-grinding process called ultrasonic vibration-assisted nanoparticle jet mist cooling(U-NJMC)is innovatively proposed to solve the technical *** combines the advantages of ultrasonic vibration(UV)and nanoparticle jet mist cooling(NJMC).Notwithstanding,the combined effect of multi parameter collaborative of U-NJMC on cooling has not been *** grinding force,friction coefficient,specific grinding energy,and grinding temperature under dry,drip irrigation,UV,minimum quantity lubrication(MQL),NJMC,and U-NJMC micro-grinding were compared and *** showed that the minimum normal grinding force and tangential grinding force of U-NJMC micro-grinding were 1.39 and 0.32 N,which were 75.1%and 82.9%less than those in dry grinding,*** minimum friction coefficient and specific grinding energy were achieved using *** with dry,drip,UV,MQL,and NJMC grinding,the friction coefficient of U-NJMC was decreased by 31.3%,17.0%,19.0%,9.8%,and 12.5%,respectively,and the specific grinding energy was decreased by 83.0%,72.7%,77.8%,52.3%,and 64.7%,*** with UV or NJMC alone,the grinding temperature of U-NJMC was decreased by 33.5%and 10.0%,*** results showed that U-NJMC provides a novel approach for clinical surgical micro-grinding of biological bone.

关键词： micro-grinding biological bone ultrasonic vibration(UV) nanoparticle jet mist cooling(NJMC) grinding force grinding temperature

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