• Publications
  • Influence
Physiochemical, Optical and Biological Activity of Chitosan-Chromone Derivative for Biomedical Applications
  • S. Kumar, J. Koh
  • Chemistry, Medicine
  • International journal of molecular sciences
  • 18 May 2012
This paper describes the physiochemical, optical and biological activity of chitosan-chromone derivative. The chitosan-chromone derivative gels were prepared by reacting chitosan withExpand
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Physiochemical and optical properties of chitosan based graphene oxide bionanocomposite.
  • S. Kumar, J. Koh
  • Materials Science, Medicine
  • International journal of biological…
  • 1 September 2014
In the present investigation an ecofriendly approach and a simple homogeneous solution casting method led to the development of biodegradable chitosan/graphene oxide bionanocomposites. The formationExpand
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Bio-based chitosan/gelatin/Ag@ZnO bionanocomposites: synthesis and mechanical and antibacterial properties
Chitosan exhibits a wide range of bio-properties, including biocompatibility, antimicrobial activity, and biodegradability. In this study, we prepared bionanocomposites by using chitosan/gelatin withExpand
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Dye/peroxalate aggregated nanoparticles with enhanced and tunable chemiluminescence for biomedical imaging of hydrogen peroxide.
Hydrogen peroxide (H(2)O(2)) is an endogenous molecule that plays diverse physiological and pathological roles in living systems. Here we report multimolecule integrated nanoprobes with the enhancedExpand
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A new chitosan-thymine conjugate: synthesis, characterization and biological activity.
Conjugation of chitosan with nucleobases is expected to expand its not only antimicrobial activity but also anti-cancer activity. Here, we report the synthesis of a novel chitosan-thymine conjugateExpand
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Chitosan Biopolymer Schiff Base: Preparation, Characterization, Optical, and Antibacterial Activity
Natural biopolymer used for hydrogels has attracted increasing attention in the multifaceted areas of biomedical science and engineering. The authors prepared chitosan biopolymer Schiff base byExpand
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A physico-chemical and biological study of novel chitosan-chloroquinoline derivative for biomedical applications.
This paper describes an elegant cross-linking technique for the preparation of chitosan-chloroquinoline derivative by using a greener technique. Chitosan solution in aqueous acetic acid was treatedExpand
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Gadolinium-coordinated elastic nanogels for in vivo tumor targeting and imaging.
Coordination polymer gels have been recognized as promising hybrid nanoplatforms for imaging and therapeutic applications. Here we report functional metal-organic coordinated nanogels (GdNGs) for inExpand
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Multifunctional Photonics Nanoparticles for Crossing the Blood-Brain Barrier and Effecting Optically Trackable Brain Theranostics.
Theranostic photonic nanoparticles (TPNs) that cross the blood-brain barrier (BBB) and efficiently deliver a therapeutic agent to treat brain diseases, simultaneously providing optical tracking ofExpand
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Synthesis, physiochemical and optical properties of chitosan based dye containing naphthalimide group.
  • S. Kumar, J. Koh
  • Materials Science, Medicine
  • Carbohydrate polymers
  • 15 April 2013
A new biopolymer dye containing naphthalimide moiety was synthesized by reaction of N-naphthaloyl chitosan with 1-ethyl-6-fluoro-1,4-dihydro-4-oxo-7-piperazino-3-quinolinecarboxylic acid.Expand
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