Browsing by Author "Fraz Ahmad"

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    A mini review on the synthesis of ag-nanoparticles by chemical reduction method and their biomedical applications.
    (NUST Journal of Engineering Sciences, NUST, 2016) Zahra Qurbat; Fraz Ahmad; Mudassar Abbas; Almas Anwar; Muhammad Awais
    This mini-review provides an adequate amount of information about the synthesis of silver nanoparticles through various routes. Among the competitors, Sodium-, borohydride and citrate, water, polyvinyl pyrrolidone and sodium citrate and silver nitrate are the most commonly employed reducing agents, solvent, capping agents and silver salt precursor. The particles thus formed when incorporated to form blended materials can be used in advanced applications, especially in medical devices, preventing the adhesion of microorganisms over them. Herein, the similar function of silver, either distributed over the polymeric material surfaces as a polished layer or equally dispersed therein, will be presented. The marked examples include incorporation of silver nanoparticles into fluff pulp through sonochemical impregnation and blending the silver nanoparticles synthesized through solventfree, greener routes into poly (dicyclopentadiene).
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    The impact of public Transportation usage on its perceived benefits in Lahore
    (UMT, Lahore, 2024) Fraz Ahmad
    This study investigates the impact of public transportation usage on perceived benefits in Lahore, focusing on cost, environmental impact, and traffic congestion. Public transportation is vital for sustainable urban development and improving quality of life in rapidly growing cities like Lahore. The research highlights that affordability is crucial for accessibility, bridging socioeconomic gaps and encouraging usage among low-income populations. Environmental benefits are emphasized, noting public transport's role in reducing emissions and improving air quality. The study also explores how public transportation alleviates traffic congestion, enhancing urban mobility and reducing travel times. Data were collected through surveys and analyzed using regression and ANOVA methods, revealing significant relationships between independent variables (low cost, less pollution, less traffic congestion) and public transportation usage. The findings suggest targeted policy measures to enhance public transport systems, emphasizing affordability, environmental sustainability, and congestion management to promote widespread usage and realize the benefits of efficient public transportation in Lahore. Future research should consider diverse socio-economic contexts and integrate advanced data collection methods to further explore these dynamics