Dhiraj Kumar

Research Assistant Professor


Research activity per year

Personal profile

Research interests

Nanotherapeutics and Nanotheranostics for personalised medicine: I am interested in developing and understanding the properties of nano/bio-materials and engineering the surface chemistry for various biomedical applications. The primary focus is on engineering polymeric and or metallic/metal oxide nanoparticles, and composites for cancer targeting, drug/molecular delivery, tissue engineering, bone regeneration, diagnostics and dental applications. 



  1. Multi-functional mixed metal mesoporous nanostructures improve physical, mechanical, and biological response of dental formulations, 2024 (under preparation, IF-), DOI: under preparation).
  2. Metal-based mesoporous silicate nanostructures, 2024 (under preparation, IF-), DOI: under preparation).
  3. Evaluating the washing potential of Afrin, oxymetazoline, benzalkonium chloride, and ViscoStat against Streptococcus mutans cavity model and cytotoxicity in different oral cell types, Dhiraj Kumar, Isha Mutreja, Robert S Jones, 2024 (under preparation, IF-), DOI: under preparation).
  4. Can Oxymetazoline-based Nasal Solutions be Used to Remove Bacteria-Blood Debris and Eradicate Rothia dentocariosa, Robert S Jones, Morgan Pride, Kaushik Mukherjee, Gaurav Jain, Dhiraj Kumar, 2024 (MDPI Applied Sciences, IF-), DOI: Submitted).
  5. Engineered gold nanoparticles as promising contrast agent for biomedical imaging modalities, Yusuf Olatunji, Nabil Maalej, Ahsan Ul Haq Qurashi, Aamir Younis Raja, Dhiraj Kumar, 2024 (Dovepress, IF-4.997), DOI: Submitted).
  6. Development of smart metallic orthopedic and dental implants based on biomimetic design, Rupak Dua, Jagasivamani Vadivel, Indu Khurana, Eaman T. Karim, Isha Mutreja, Dhiraj Kumar, and Mamilla Ravi Shankar, 2024 (Journal of Materials Science Materials in Medicine, IF-3.7), DOI: accepted).


  1. Biodegradable Polymers, Mudigunda V Sushma, Aditya kadam, Dhiraj Kumar and Isha Mutreja, 2023 (Book Chapter, DOI: 10.1007/978-3-031-36135-7_2).
  2. High atomic number nanoparticles to enhance spectral CT imaging aspects, Isha Mutreja, Nabil Maalej, Dhiraj Kumar*, Aamir Raja*, 2023 (Materials Advances RSC, IF-5.0), DOI: 10.1039/D3MA00231D).
  3. MARS for molecular imaging and preclinical studies, Mahdieh Moghiseh, Jennifer A Clark, Maya R Amma, Krishna M Chapagain, Devyani Dixit, Chiara Lowe, Aysouda Matanaghi, Emily Searle, Yann Sayous, Dhiraj Kumar, Anthony P H Butler, and MARS Collaboration, 2023 (Springer book chapter), DOI: 10.1007/978-3-031-26062-9_4).
  4. Lipid nanoparticle-based formulations for high-performance Dentistry Applications, Isha Mutreja#, Dhiraj Kumar#, Ajeet Kaushik and Yogendra Mishra, 2023 (Journal of Materials Chemistry B RSC, IF-7.571), DOI: 10.1039/D3TB00431G).
  5. Recent advances in noble metal nanoparticles for cancer nanotheranostics, Isha Mutreja, Ajeet Kaushik, Dhiraj Kumar, 2023 (Nanotheranostics MDPI, IF:), DOI: 10.3390/jnt4020008).
  6. LHRH conjugated gold nanoparticles assisted efficient ovarian cancer targeting evaluated via spectral photon-counting CT imaging: A proof-of-concept research, Dhiraj Kumar*, Mahdieh Moghiseh*, Kenny Chitcholtan, Chiara Lowe, Isha Mutreja, Ajeet Kaushik, Anthony Butler, Nigel Anderson, Peter Sykes, Aamir Raja, 2023 (Journal of Materials Chemistry B RSC, IF-7.571), DOI: 10.1039/D2TB02416K).
  7. Fluoride and Gallein Inhibit Polyphosphate Accumulation by Oral Pathogen Rothia dentocariosa, Dhiraj Kumar, Subhrangshu Mandal, Akbar Khan, Jake V. Bailey, Beverly E. Flood, Robert S. Jones, 2023 (Letters in Applied Microbiology, IF-2.813), DOI: 10.1093/lambio/ovad017).


  1. Gelatin methacryloyl hydrogels for musculoskeletal tissue regeneration, Yang-Hee Kim, Jonathan I Dawson, Richard O.C. Oreffo, Yasuhiko Tabata, Dhiraj Kumar, Conrado Aparicio, Isha Mutreja 2022 (Bioengineering, MDPI), DOI: 10.3390/bioengineering9070332).
  2. Methacrylate Polymers with 'Flipped External' Ester Groups: A Review, Dhiraj Kumar, Robert D Bolskar, Isha Mutreja, and Robert S Jones, 2022 (Frontiers in Dental Medicine (IF–), DOI: 10.3389/fdmed.2022.923780).
  3. Emerging Nanostructures in Dental Applications, Debarati Ghose* and Dhiraj Kumar* 2022 (Book Chapter), DOI: https://link.springer.com/chapter/10.1007/978-981-19-1312-9_8).


  1. Strontium- and peptide-modified silicate nanostructures for dual osteogenic and antimicrobial activity, Isha Mutreja, Dhiraj Kumar, Kami Hogan, Emily Campbell, Kim Mansky, Conrado Aparicio, 2021 (Biomaterials Advances (IF–7.328), DOI: 10.1016/j.bioadv.2022.212735).
  2. Utilizing a degradation prediction pathway system to understand how a novel methacrylate derivative polymer with flipped external ester groups retains physico-mechanical properties following esterase exposure, Dhiraj Kumar, Debarati Ghose, Robert D Bolskar, Isha Mutreja, Conrado Aparicio, and Robert S Jones. 2021 (Dental Materials (IF–5.304), DOI: 10.1016/j.dental.2021.12.008).
  3. Hybrid nanocoatings of antimicrobial peptides and silver nanoparticles for preservation of implant infections, Zhou Ye, Ting Sang, Kun Li, Nicholas G. Fisher, Isha Mutreja, Constanza Echeverria, Dhiraj Kumar, Zhen Tang, Conrado Aparicio. 2021 (Acta Biomaterialia (IF–8.947), DOI: 10.1016/j.actbio.2021.12.008).
  4. A novel methacrylate derivative polymer that resists bacterial cell-mediated biodegradation, Dhiraj Kumar, Debarati Ghose, Robert D Bolskar, Isha Mutreja, and Robert S Jones. 2021 (Journal of Biomedical Materials Research B (IF–3.368), DOI: 10.1002/jbm.b.34972).


  1. A novel dental polymer with a flipped external ester group design that resists degradation via polymer backbone preservation, Dhiraj Kumar, Robert D Bolskar, Sydney Malone, Isha Mutreja, Conrado Aparicio, and Robert S Jones. 2020 (ACS, Biomaterials Science & Engineering (IF–4.152), DOI: 10.1021/acsbiomaterials.0c00947).
  2. Design and characterization of multi-functional strontium-gelatin nanocomposite bioinks with improved print fidelity and osteogenic capacity, Cesar R. Alcala-Orozco, Isha Mutreja, Xiaolin Cui, Dhiraj Kumar, Gary J. Hooper, Khoon S. Lim, Tim B.F. Woodfield. 2020 (Bioprinting (IF – 5.88), DOI: 10.1016/j.bprint.2019.e00073).

Expertise related to UN Sustainable Development Goals

In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):

  • SDG 3 - Good Health and Well-being
  • SDG 4 - Quality Education
  • SDG 5 - Gender Equality
  • SDG 7 - Affordable and Clean Energy
  • SDG 11 - Sustainable Cities and Communities
  • SDG 13 - Climate Action

Education/Academic qualification

PhD, Co-functionalized gold nanoparticles for drug delivery application, Ulster University

Sep 1 2009Oct 21 2012

Award Date: May 6 2013

Masters, Nanobiotechnology - Surface modified alumina nanotubes for controlled drug release and Silica NPs as Nanocarrier, Amity University


MSc, Physical Chemistry, Department of Chemistry, Delhi University


BS, Chemistry Honors, Hindu College, Delhi University


External Positions

Research Fellow, Department of Obstetrics and Gynecology, University of Otago at Christchurch

Jan 2014Jun 2018

Visiting Postdoc, School of Engineering, University of Canterbury


Research Interest Keywords

  • Nanotherapeutics
  • nanoparticle
  • Nanotheranostics
  • Nanomedicine
  • nanomaterials
  • Nano-contrast agent
  • biomedical imaging
  • biomaterials
  • Drug Delivery
  • molecular delivery
  • Cancer targeting
  • nanoparticle-polymer composites
  • nanobioengineering


The Fingerprint is created by mining the titles and abstracts of the person's research outputs and projects/funding awards to create an index of weighted terms from discipline-specific thesauri.
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