Recent advancements in applied sciences have significantly contributed to technological development and societal progress. Physics and chemistry, as fundamental scientific disciplines, play a vital role in addressing modern challenges related to energy, healthcare, environmental sustainability, and advanced materials. Rapid progress in areas such as nanomaterials, biomaterials, thermoelectric materials, sensors and devices, and green chemical processes has opened new avenues for research and practical applications. These developments have created opportunities for interdisciplinary collaboration and innovation aimed at solving complex scientific and technological problems.

In recent years, research in material synthesis and characterization, radiation–matter interaction, environmental chemistry, electrochemistry, and analytical techniques has expanded considerably. The development of advanced materials such as polymers, glasses, ceramics, and composite materials has enhanced the performance of modern devices and industrial applications. Similarly, innovations in electrochemistry have led to improvements in batteries, corrosion control, and electroplating technologies. At the same time, growing environmental concerns have driven research toward green synthesis, pollution control, and sustainable chemical processes.

The significance of this special issue lies in its focus on highlighting the latest trends and emerging research in applied physics and chemistry. It aims to bring together researchers, academicians, and industry professionals to share their knowledge, experimental findings, and innovative ideas. By emphasizing interdisciplinary approaches, the special issue seeks to bridge the gap between fundamental research and practical applications, thereby promoting scientific advancements that can benefit society.

This special issue also provides an important platform for exploring the role of applied science in healthcare technologies, environmental protection, and sustainable industrial practices. Advances in biomaterials, sensors, and analytical techniques have greatly improved diagnostic and monitoring systems in healthcare. Likewise, developments in environmental chemistry and green technologies contribute to reducing pollution and promoting sustainable development.

The main objectives of this special issue are to provide a platform for researchers to present high-quality research in applied science and to highlight innovative developments in physics and chemistry that address real-world challenges. It also aims to encourage interdisciplinary collaboration among scientists working in materials science, environmental science, healthcare technologies, and energy systems. Furthermore, the special issue seeks to promote sustainable scientific practices by emphasizing green chemistry, eco-friendly materials, and efficient technological solutions.