Title:Recent Advancements in Nanodiamond Mediated Brain Targeted Drug
Delivery and Bioimaging of Brain Ailments: A Holistic Review
Volume: 10
Issue: 1
Author(s): Mohini Singh*Bhaskar Mazumder
Affiliation:
- Department of pharmaceutical sciences, Dibrugarh University, Dibrugarh-786004, Assam, India
Keywords:
Blood brain barrier, nanodiamonds, brain targeting, bioimaging, nanothernostics, alzheimer’s, glioblastomas, neuro- degenerative diseases.
Abstract:
Background: The brain is a vital and composite organ. By nature, the innate make-up of
the brain is such that in anatomical parlance, it is highly protected by the “Blood-Brain Barrier”,
which is a nexus of capillary endothelial cells, basement membrane, neuroglial membrane and
glialpodocytes. The same barrier, which protects and isolates the interstitial fluid of the brain from
capillary circulation, also restricts the therapeutic intervention. Many standing pharmaceutical formulations
are ineffective in the treatment of inimical brain ailments because of the inability of the
API to surpass and subsist inside the Blood Brain Barrier.
Objective: This is an integrated review that emphasizes on the recent advancements in brain-targeted
drug delivery utilizing nanodiamonds (NDs) as a carrier of therapeutic agents. NDs are a novel
nanoparticulate drug delivery system, having carbon moieties as their building blocks and their surface
tenability is remarkable. These neoteric carbon-based carriers have exceptional, mechanical,
electrical, chemical, optical, and biological properties, which can be further rationally modified and
augmented.
Discussion: NDs could be the next“revolution ”in the field of nanoscience for the treatment of neurodegenerative
disorders, brain tumors, and other pernicious brain ailments. What sets them apart
from other nanocarriers is their versatile properties like diverse size range and surface modification
potential, which makes them efficient enough to move across certain biological barriers and offer a
plethora of brain targeting and bioimaging abilities.
Conclusion: The blood-brain barrier (BBB) poses a major hurdle in the way of treating many serious
brain ailments. A range of nanoparticle based drug delivering systems have been formulated, including
solid lipid nanoparticles, liposomes, dendrimers, nanogels, polymeric NPs, metallic NPs
(gold, platinum, andironoxide) and diamondoids (carbonnanotubes). Despite this development, only
a few of these formulations have shown the ability to cross the BBB. Nanodiamonds, because of
their small size, shape, and surface characteristics, have a potential in moving beyond the diverse
and intricate BBB, and offer a plethora of brain targeting capabilities.