There is growing interest in the development of path coiling-based labyrinthine acoustic metamaterials for realizing extraordinary acoustical properties such as low-to-mid frequency sound absorption. We present a subwavelength metastructure (≤3 cm) exhibiting superior absorption with high bandwidth (more than one octave range 400–1400 Hz). The orchestrated multiple unit cells different configurations hexagonal array, and broadband has been achieved by dissipation incident propagating waves...

Owing to a steep rise in urban population, there has been continuous growth construction of buildings, public or private transport like cars, motorbikes, trains, and planes at global level. Hence, noise become major issue affecting the health quality human life. In current environmental scenario, architectural acoustics directed towards controlling manipulating sound waves desired Structural engineers designers are moving green technologies, which may help improve overall comfort level...

The promising field of organic electronics has ushered in a new era biosensing technology, thus offering frontier for applications both medical diagnostics and environmental monitoring. This review paper provides comprehensive overview electronics’ remarkable progress potential applications. It explores the multifaceted aspects materials devices, thereby highlighting their unique advantages, such as flexibility, biocompatibility, low-cost fabrication. delves into diverse range biosensors...

In the past decade, term 'global aging' has gained much attention among researchers, policymakers, civil societies, and governments worldwide. The continuous decline in fertility rates increased life expectancy have resulted an ongoing demographic transition where share of adults aged 65 or older is increasing outnumbering children younger than five years. United States other developed countries, this rapid expected to continue strain existing health infrastructure as it becomes increasingly...

In the past two decades, acoustic metamaterials have garnered much attention owing to their unique functional characteristics, which are difficult find in naturally available materials. The demonstrated excellent acoustical characteristics that paved a new pathway for researchers develop effective solutions wide variety of multifunctional applications, such as low-frequency sound attenuation, wave manipulation, energy harvesting, focusing, cloaking, biomedical acoustics, and topological...

Abstract Crocus sativus L. (saffron) is a globally used expensive spice. There are few countries like Iran, Greece, Morocco, Spain, Italy, Turkey, France, Switzerland, Pakistan, China, Japan and Australia where this spice cultivated exported to other countries. India contributes 5% of the world's total production which 90% supplied only from its Jammu Kashmir (J&K) regions. In India, saffron J&K 3.83 tonnes whereas annual demand approximately 100 tonnes. country, there geographical...

Dengue virus, a Flaviviridae family member, has emerged as major worldwide health concern, making its early diagnosis imperative. Lateral flow immunoassays have been widely employed for point-of-care of dengue because their rapid naked eye readouts, ease use, and cost-effectiveness. However, they entail drawback low sensitivity, limiting usage in clinical applications. Herein, we report novel lateral immunoassay detection leveraging on the benefits gold decorated graphene oxide sheets labels...

The recent success of additive manufacturing processes (also called, 3D printing) in the sector has led to a shift focus from simple prototyping real production-grade technology. enhanced capabilities printing build intricate geometric shapes with high precision and resolution have their increased use fabrication microelectromechanical systems (MEMS). technology offered tremendous flexibility users for fabricating custom-built components. Over past few decades, different types technologies...

A novel paper-based device for colorimetric detection of uric acid was developed based on the peroxidase-like activity gold nanoparticles–graphene conjugates (AuNPs–GO).

Hemin–Au@Ag–graphene oxide, a quaternary nanocomposite employed as an efficient peroxidase mimetic for ultrasensitive detection of hydrogen peroxide and glucose.

Acoustic metamaterials hold great potential for attenuation of low frequency acoustic emissions. However, a fundamental challenge is achieving high transmission loss over broad range. In this work, we report double negative metastructure absorption emissions in an aircraft. This achieved by utilizing periodic array hexagonal cells interconnected with neck and mounted elastic membrane on both ends. An average 56 dB under 500 Hz overall 48% have been realized experimentally. The mass density...

Since its first demonstration of an acoustic metamaterial in the early 21st century, it is widely used for sound wave manipulation purposes many applications such as aerospace, automotive, defense, marine, etc. However, traditional metamaterials display characteristics restricted use because their fixed structures. For real-world applications, active desirable. In recent years, (AAMs) have garnered attention owing to unique design and material characteristics, which result various dynamic...

This study presents a compact, lightweight, and reconfigurable acoustic metatile for sound mitigation applications. The prototype is designed based on circular maze-like metastructure, which utilizes space-coiling technique enhanced performance in low-to-mid frequencies. proposed labyrinthine metadisk structure comprises central hollow front face sheet two coiling-up backing cavities. Experimental results show that the has high absorption peaks of 0.81 0.75 at 574 1436 Hz, respectively,...

This manuscript offers a concise overview of paper microfluidics, emphasizing its sustainable sensing applications in healthcare, environmental monitoring, and food safety. Researchers have developed innovative platforms for detecting pathogens, pollutants, contaminants by leveraging the paper’s unique properties, such as biodegradability affordability. These portable, low-cost sensors facilitate rapid diagnostics on-site analysis, making them invaluable tools resource-limited settings....

The pursuit of sustainable design has made strides in improving building practices, yet traditional approaches often fall short addressing the holistic needs both environment and human well-being. This research delves into emerging field regenerative design, which extends beyond sustainability by seeking to restore enhance ecological systems. By integrating principles indoor environments, this study evaluates their impact on environmental quality (IEQ). Through a comprehensive literature...

The pursuit of sustainable design has made strides in improving building practices, yet traditional approaches often fall short addressing the holistic needs both environment and human well-being. This research delves into emerging field regenerative design, which extends beyond sustainability by seeking to restore enhance ecological systems. By integrating principles indoor environments, this study evaluates their impact on environmental quality (IEQ). Through a comprehensive literature...