http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Muhammad Bilal Tahir (검색결과 4 건)
- 무료
- 기관 내 무료
- 유료
-
A Review of Synthesis, Characterization and Applications of Copper Nanoparticles Using Green Method
Muhammad Rafique,Ahson J. Shaikh,Reena Rasheed,Muhammad Bilal Tahir,Hafiz FaiqBakhat,MUHAMMAD SHAHID RAFIQUE,Faiz Rabbani 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2017 NANO Vol.12 No.4
To address accosts of this modern age, the synthesis of metal nanoparticles is more important than ever. Copper has been recognized as a nontoxic, safe inorganic material, cheaper antibacterial/antifungal agent, and has high potential in a wide range of biological, catalytic and sensors applications more particularly in the form of nanoparticles. This resulted in the development of numerous methods for the synthesis of copper nanoparticles. As conventional methods like chemical and physical methods have several limitations so there is need to an alternate method. Due to nontoxic and eco-friendly nature, it has recently been shifted toward green synthesis of copper nanoparticles over conventional methods. Additionally, characterization of the synthesized nanoparticles is essential for their use in various applications. This review gives an overview of environment friendly synthesis method of copper nanoparticles and their applications on the basis of their potential selectivity and preferences in a number of fields like material sciences and biomedicine.
-
Tahir Rasheed,Faran Nabeel,Muhammad Bilal 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.78 No.-
Inspiring from the multiple functions and delicate architectures of natural peroxidases, we constructedan artificial peroxidase that can mimic as horseradish peroxidase (HRP). This mimicking construct wasengineered by the self-assembly of alternating copolymers followed by encapsulation of hemin resultedin a functional vesicle exhibiting activity like peroxidase. The thiazole moiety present in copolymers poly(ethylene glycol)diglycidyl ether-alt-Bismuth-thiol P(PEGDGE-a-BTT) and 1,7-butadiene-diepoxide-alt-Bismuth-thiol P(BDD-a-BTT) can easily coordinate with hemin molecule. In this complex, hemin ispresent as a pentacoordinate ligand having an open site for substrate binding similar to themicroenvironment in natural peroxidase. The as-prepared functional vesicles exhibited better stabilityand excellent catalytic activity in oxidizing orange II (azo dye) and phenolic compounds such as catecholand 3, 30 , 5, 50-tetramethylbenzidine (TMB) using hydrogen peroxide (H2O2) as compared to HRP over awide pH, temperature range, and substrate concentrations. Another striking feature of these functionalvesicles (alternating polymer vesicles loaded with hemin) is their use as recognition systems forchromogenic substances, indicating that these vesicles can be used as new biocatalysts for specificfunctions.
-
Analysing the Causes of Design Generated Waste through System Dynamics
Sidra Muzaffar,Khurram Iqbal Ahmad Khan,Muhammad Bilal Tahir,Hamna Bukhari 대한토목학회 2022 KSCE JOURNAL OF CIVIL ENGINEERING Vol.26 No.12
A drastic rise in construction waste observed has elicited a radical impact on the environment and economy of the world. It is, therefore, necessary to come up with waste minimization management strategies that reflect in-depth review of sources of waste. This in depth review demands understanding the intricacy of causative factors triggering generation of “waste at source” which is the main motive of study and is done through System Dynamics for design phase in context of developing countries. 8 most important causative factors in design phase were shortlisted along with their interrelationships via literature and questionnaire survey. Followed by system thinking approach that addressed the complexities caused by those factors in 2 stages. Firstly, a Causal loop diagram was developed that illustated interrelationship between factors in the form of loops. Later SD model built, evaluated the combinatorial effect of 3 evolved stocks over the fourth stock Design Generated Waste-an emanating phenomenon. Simulation result revealed increasing trend of the stock DGW over a course of time. Therefore, increase in effect of complexities of behavior of design waste causes, will consequently lead to increase in DGW. Managing the complex behavior of these design causes will help control over the DGW w.r.t. time.
-
Ahmed Ammar,Azam Ali,Wang Yanen,Zhang Zutao,Li Ning,Jia Changyuan,Mushtaq Ray Tahir,Rehman Mudassar,Gueye Thierno,Shahid Muhammad Bilal,Basit Ali Wajid 나노기술연구협의회 2021 Nano Convergence Vol.8 No.37
Additively manufactured nano-MEH systems are widely used to harvest energy from renewable and sustainable energy sources such as wind, ocean, sunlight, raindrops, and ambient vibrations. A comprehensive study focusing on in-depth technology evolution, applications, problems, and future trends of specifically 3D printed nano-MEH systems with an energy point of view is rarely conducted. Therefore, this paper looks into the state-of-the-art technologies, energy harvesting sources/methods, performance, implementations, emerging applications, potential challenges, and future perspectives of additively manufactured nano-mechanical energy harvesting (3DP-NMEH) systems. The prevailing challenges concerning renewable energy harvesting capacities, optimal energy scavenging, power management, material functionalization, sustainable prototyping strategies, new materials, commercialization, and hybridization are discussed. A novel solution is proposed for renewable energy generation and medicinal purposes based on the sustainable utilization of recyclable municipal and medical waste generated during the COVID-19 pandemic. Finally, recommendations for future research are presented concerning the cutting-edge issues hurdling the optimal exploitation of renewable energy resources through NMEHs. China and the USA are the most significant leading forces in enhancing 3DP-NMEH technology, with more than 75% contributions collectively. The reported output energy capacities of additively manufactured nano-MEH systems were 0.5–32 mW, 0.0002–45.6 mW, and 0.3–4.67 mW for electromagnetic, piezoelectric, and triboelectric nanogenerators, respectively. The optimal strategies and techniques to enhance these energy capacities are compiled in this paper. Graphical Abstract
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
