Sunday, June 13, 2021
Profile

Dr. Waheed S. Khan

waheedskhan@yahoo.com,waheedskhan@nibge.org


Dy. Chief Scientist
Group Leader of Nanobiotechnology Research Group

Work Phone: 0092-41-9201404
Fax Phone: 0092-41-9201322
Cell/Direct Phone: 0092-331-5267520
Dr. Waheed S. Khan

Academic Qualification

  • Post Doc. Nanotechnology, 2018, Ningbo Institute of Materials Technology and Engineering (NIMTE)-CNITECH, Chinese Academy of Sciences (CAS), Ningbo City, Zhejiang Province, P. R. China.
  • Ph.D.    Nanotechnology, 2011, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, P.R. China.
  • M. Phil.  Physics, 2000, Physics Department, Quaid-I-Azam University, Islamabad, Pakistan.
  • M.Sc.     Physics, 1995, Physics Department, Punjab University, Lahore, Pakistan.
  • B.Sc.      1992, Physics, Maths-A & B, (Govt. Gordon College, RWP) Punjab University Lahore, Pakistan

 

Research Interests

  • Synthesis: Chemical Vapour Deposition, Hydrothermal, Solvo-Thermal  Techniques, Bio-Synthesis, Microwave-Assisted Synthesis,  
  • Characterization Techniques: XRD, SEM, EDS, FESEM, TEM, HRTEM, XPS, Raman, SAED, FTIR etc.
  • Properties and Applications: Photocatalytic degradation of organic pollutants, Bio-imaging, Biosensing, Self-Cleaning Surfaces, Antibacterial/Antiviral Activities, Enzyme Immobilization, etc

 

Synthesis of Tungstate based Nanomaterials for Photocatalytic and Biosensing Applications

Various tungstate based nanomaterials such as barium tungstate (BaWO4) , bismuth tungstate (Bi2WO6), zinc tungstate (ZnWO4) etc were synthesized using facile, efficient and cost effective Hydrothermal Technique. These nanomaterials were characterized using high tech facilities like SEM, XRD, EDS, TEM, etc. Later these materials were explored for their potential applications in photocatalytic degradation of harmful compounds, organic dyes, waste materials under artificial light and sunlight.

 

Bismuth tungstate (Bi2WO6) and zinc tungstate (ZnWO4) were further investigated for their detection applications. MWCNTs/Bi2WO6 nanocomposite was used as a sensor coating for the mass-sensitive detection of rifampicin (RIF).

This nanocomposite was employed as a transducer layer for RIF onto the QCM sensor and multiple studies were directed to bring out the sensing characteristics of the material as well as to have a preliminary understanding of the selectivity. The developed sensor showed high sensitivity toward rifampicin, excellent reproducibility and stability. Similarly, one dimensional (1D) nanostructures of ZnWO4 were employed for the detection of a model antibiotic, chloramphenicol. The developed sensor exhibited excellent limit of detection, 0.32 μM and 100%

specificity as compared to its structural and functional analogues such as thiamphenicol and clindamycin. This work can broaden new opportunities for the researchers to explore unconventional nanomaterials bearing unique morphologies and quantum phenomenon for the label-free detection of other bioanalytes.

 

It is necessary to study the possible interactions among various chemical surfaces and analytes before applying them to biological systems. Carbon nanotubes- iron oxide (SPIONs-CNT) nanocomposite was synthesized by using lecithin stabilized superparamagnetic iron oxide nanoparticles (SPIONs) obtained by facile hydrothermal technique. Various characterizations of the obtained nanocomposite were carried out and electrochemical studies were performed further to study the interaction capabilities of the nanocomposite with anti-TB drug Rifampicin. Obtained results by cyclic voltammetric studies of SPIONs-CNT nanocomposite with limit of detection (LOD) of 1.178µM showed the enhanced electrochemical sensitivity and selectivity of anti-tuberculosis (anti-TB) drug Rifampicin (Rif).

 

RESEARCH PROJECTS

 

  •  Development of Magnetic Nanoparticles Based Support for the Immobilization of NIBGE-Alpha-amylase Enzyme to Produce Maltose Syrup from Corn Starch

          (PKR5.4M, Funding Agency is HEC, PI= Dr. Waheed S. Khan, Co-PI= Dr. Hamid Rashid)

  • Synthesis  and  Application  of  Layered  Bismuth  Oxyhalide  based  Nanomaterials  for  Photocatalytic Degradation of Industrial Waste Dyes

          (PKR3.063M, Funding Agency is HEC, PI= Dr. Waheed S. Khan, Co-PIs= Dr. Mazhar Iqbal, Dr. Sadia Zafar              Bajwa)

  • Development of low cost chip based biosensor for the detection of breast tumor

           (PKR7.16M, Funding Agency is HEC, PI= Dr. Sadia Zafar Bajwa, Co-PI= Dr. Waheed S. Khan)

  • Reinforcement of plastic products by using carbon based Nano-materials for local industrial application

           (PKR 3.0M, Funding Agency is HEC, PI= Dr. Ghulam Nabi (Univer. of Gujrat), Co-PI= Dr. Waheed S. Khan)

  • Carbon and Transition Metal Oxide Nanomaterials based high performance Supercapacitors

           (PKR 5.22M, Funding Agency is HEC, PI= Dr. Ghulam Nabi (Univer. Of Gujrat), Co-PI= Dr. Waheed S. Khan)

  • Development of magnetic nanostructure for energy efficient applications based on ultra strong permanent magnet and soft magnet

           (PKR 3.67M, Funding Agency is HEC, PI= Dr. M.Yasir Rafique (CIIT, Lahore), Co-PI= Dr. Waheed S. Khan)

 

Selected Research Publications

 

  • Anam Munawar, Romana Schirhagl, Abdul Rehman, Ayesha Shaheen, Ayesha Taj, Khizra Bano, Nicole J. Bassous, Thomas J. Webster, WAHEED S. KHAN, Sadia Z. Bajwa, Facile in situ generation of bismuth tungstate nanosheet-multiwalled carbon nanotube composite as unconventional affinity material for quartz crystal microbalance detection of antibiotics, Journal of Hazardous Materials (Elsevier) 373 (2019) 50-59 (Impact Factor  6.434) 
  • Khizra Bano, Sadia Z. Bajwa, Nicole J. Bassous, Thomas J. Webster, Ayesha  Shaheen, Ayesha Taj, Sadaf Hameed, Bushra Tehseen, Zhifei Dai, M. Zubair Iqbal, WAHEED S. KHAN, Development of biocompatible 1D CuO nanoneedles and their potential for sensitive, massbased detection of anti-tuberculosis drugs Nanosensors for diagnosis  with optical , electrical and mechanical transducers, Applied Nanoscience (Springer) Accepted (2019) (Impact Factor 2.951)   
  • Madiha Saeed, M. Tayyab Ansari, Imdad Kaleem, Sadia Zafar Bajwa, Asma Rehman, Khizra Bano, Bushra Tehseen, Nuzhat Jamil, Mehvish Zahoor, Ayesha Shaheen, Ayesha Taj, M. Rizwan Younis, and WAHEED S. KHAN, “Assessment of Antimicrobial Features of Selenium Nanoparticles (SeNPs) Using Cyclic Voltammetric Strategy”, J. Nanosci. and Nanotechnol.Vol. 19, 1–6, 2019. 
  • Hafiza Faiza, Khalid,  Bushra Tehseen, Yasra Sarwar, Syed m Zajif Hussain, WAHEED S. KHAN, Zulfiqar Ali Raza, Sadia Zafar Bajwa, Antonios G. Kanaras, Irshad Hussain, Asma Rehman, “Biosurfactant Coated Silver and Iron Oxide Nanoparticles with  Enhanced Anti-biofilm and Anti-adhesive PropertiesJournal of Hazardous Materials (Elsevier) 364 (2019) 441-448 (Impact Factor  6.434) 
  • Bushra Tehseen, Asma Rehman, Muniba Rahmat, Haq Nawaz Bhatti, Aiguo Wu, Faheem K. Butt, Gul Naz, WAHEED S. KHAN, Sadia Z. Bajwa, “Solution growth of 3D MnO2 mesh comprising 1D nanofibres as a novel sensor for selective and sensitive detection of biomolecules”, Biosensors and Bioelectronics (Elsevier) Accepted 117 (2018) 852-859 (Impact Factor 8.173)           
  • Anam Munawar, Muhammad Ali Tahir, Ayesha Shaheen, Peter A. Lieberzeit, WAHEED S. KHAN, Sadia Z. Bajwa, “Investigating Nanohybrid Material based on 3D CNTs@Cu Nanoparticle Composite and Imprinted Polymer for Highly Selective Detection of Chloramphenicol”, Journal of Hazardous Materials (Elsevier) 342 (2018) 96-106 (Impact Factor  6.05) 
  • M. Ali Tahir, Sadia Zafar Bajwa, WAHEED S. KHAN, Shahid Mansoor, Rob Briddon, Brian Scheffler, Imran Amin, “Evaluation of carbon nanotube based copper nanoparticle composite for the efficient detection of agroviruses”, Journal of Hazardous Materials (Elsevier) 346 (2018) 27-35 (Impact Factor  6.05) 
  • Farooq  Aziz, Khizra  Bano, Sadia  Zafar  Bajwa, Aalia  Nazir, Anam  Munawar, Ayesha Shaheen, Madiha Saeed, Muhammad Afzal, M. Zubair Iqbal, Aiguo Wu, WAHEED S. KHAN, Lecithin-coated gold nanoflowers (GNFs) for CT scan imaging applications and biochemical parameters; in vitro & in vivo studies, Artificial cells, Nanomedicine, and Biotechnology (Taylor & Francis) Accepted (2018) (Impact Factor  5.605) 
  • Sadaf Hameed, Anam  Munawar , WAHEED S. KHAN, Adnan   Mujahid,  Ayesha Ihsan, Asma  Rehman, Ishaq Ahmed, Sadia Z. Bajwa, Assessing Manganese Nanostructures based Carbon nanotubes composite for the Highly Sensitive Determination of Vitamin C in Pharmaceutical Formulation, Biosensors  and Bioelectronics 89 (2017) 822-828   (Impact Factor 7.78) 
  • Farooq Aziz, Ayesha Ihsan, Aalia Nazir, Ishaq Ahmad, Sadia Zafar Bajwa, Asma Rehman, Abdulla Diallo, WAHEED S. KHAN, Novel route synthesis of porous and solid gold nanoparticles for investigating their comparative performance as contrast agent in CT scan, effect on liver and renal function test, International J. of Nanomedicine (Dove Medical Press) 12 (2017) 1555-63  (Impact Factor 4.30).

 

 

 

 

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