Physical Review Letters,
Journal Year:
2010,
Volume and Issue:
104(22)
Published: June 4, 2010
The
radical
pair
mechanism
is
one
of
the
two
main
hypotheses
to
explain
navigability
animals
in
weak
magnetic
fields,
enabling
e.g.
birds
see
Earth's
field.
It
also
plays
an
essential
role
field
spin
chemistry.
Here,
we
show
how
quantum
control
can
be
used
either
enhance
or
reduce
performance
such
a
chemical
compass,
providing
new
route
further
study
and
its
applications.
We
entanglement
this
mechanism,
demonstrate
intriguing
connections
between
radical-pair
sensitivity
compass.
Beyond
their
immediate
application
these
results
state-of-the-art
technologies
could
potentially
probe
biological
functions.
Annual Review of Biophysics,
Journal Year:
2016,
Volume and Issue:
45(1), P. 299 - 344
Published: May 24, 2016
Although
it
has
been
known
for
almost
half
a
century
that
migratory
birds
can
detect
the
direction
of
Earth's
magnetic
field,
primary
sensory
mechanism
behind
this
remarkable
feat
is
still
unclear.
The
leading
hypothesis
centers
on
radical
pairs—magnetically
sensitive
chemical
intermediates
formed
by
photoexcitation
cryptochrome
proteins
in
retina.
Our
aim
here
to
explain
and
physical
aspects
radical-pair
biologists
biological
physicists.
In
doing
so,
we
review
current
state
knowledge
magnetoreception
mechanisms.
We
dare
hope
tutorial
will
stimulate
new
interdisciplinary
experimental
theoretical
work
shed
much-needed
additional
light
fascinating
problem
biology.
Physical Review Letters,
Journal Year:
2011,
Volume and Issue:
106(4)
Published: Jan. 25, 2011
In
artificial
systems,
quantum
superposition
and
entanglement
typically
decay
rapidly
unless
cryogenic
temperatures
are
used.
Could
life
have
evolved
to
exploit
such
delicate
phenomena?
Certain
migratory
birds
the
ability
sense
very
subtle
variations
in
Earth's
magnetic
field.
Here
we
apply
information
theory
widely
accepted
"radical
pair"
model
analyze
recent
experimental
observations
of
avian
compass.
We
find
that
sustained
this
living
system
for
at
least
tens
microseconds,
exceeding
durations
achieved
best
comparable
man-made
molecular
systems.
This
conclusion
is
starkly
variance
with
view
too
"warm
wet"
phenomena
endure.
Proceedings of the National Academy of Sciences,
Journal Year:
2012,
Volume and Issue:
109(13), P. 4774 - 4779
Published: March 14, 2012
Among
the
biological
phenomena
that
fall
within
emerging
field
of
“quantum
biology”
is
suggestion
magnetically
sensitive
chemical
reactions
are
responsible
for
magnetic
compass
migratory
birds.
It
has
been
proposed
transient
radical
pairs
formed
by
photo-induced
electron
transfer
in
cryptochrome
proteins
and
their
coherent
spin
dynamics
influenced
geomagnetic
leading
to
changes
quantum
yield
signaling
state
protein.
Despite
a
variety
supporting
evidence,
it
still
not
clear
whether
cryptochromes
have
properties
required
respond
interactions
orders
magnitude
weaker
than
thermal
energy,
k
B
T
.
Here
we
demonstrate
kinetics
yields
flavin—tryptophan
indeed
sensitive.
The
mechanistic
origin
effect
clarified,
its
dependence
on
strength
measured,
rates
relevant
spin-dependent,
spin-independent,
spin-decoherence
processes
determined.
We
argue
fit
purpose
as
magnetoreceptor.
Journal of Physics Conference Series,
Journal Year:
2011,
Volume and Issue:
302, P. 012037 - 012037
Published: July 20, 2011
This
paper
reviews
the
role
of
quantum
mechanics
in
biological
systems,
and
shows
how
interplay
between
coherence
decoherence
can
strongly
enhance
transport
photosynthesis.
Advanced Materials,
Journal Year:
2017,
Volume and Issue:
29(14)
Published: Feb. 22, 2017
Designed
synthesis
and
assembly
of
nanoparticles
assisted
by
their
surface
ligands
can
create
"smart"
materials
with
programmed
responses
to
external
stimuli
for
biomedical
applications.
These
assemblies
be
designed
respond
either
exogenously
(for
example,
magnetic
field,
temperature,
ultrasound,
light,
or
electric
pulses)
endogenously
(to
pH,
enzymatic
activity,
redox
gradients)
play
an
increasingly
important
role
in
a
diverse
range
applications,
such
as
biosensors,
drug
delivery,
molecular
imaging,
novel
theranostic
systems.
In
this
review,
the
recent
advances
challenges
development
stimuli-responsive
nanoparticle
are
summarized;
particular,
application-driven
design
that
capable
sensing
small
changes
disease
microenvironment,
which
induce
related
physico-chemical
properties,
is
described.
Finally,
possible
future
research
directions
problems
have
addressed
briefly
discussed.
Chemical Reviews,
Journal Year:
2023,
Volume and Issue:
123(4), P. 1417 - 1551
Published: Jan. 26, 2023
Magnetic
resonance
techniques
are
successfully
utilized
in
a
broad
range
of
scientific
disciplines
and
various
practical
applications,
with
medical
magnetic
imaging
being
the
most
widely
known
example.
Currently,
both
fundamental
applied
enjoying
major
boost
owing
to
rapidly
developing
field
spin
hyperpolarization.
Hyperpolarization
able
enhance
signal
intensities
by
several
orders
magnitude,
thus
largely
overcome
its
disadvantage
relatively
low
sensitivity.
This
provides
new
impetus
for
existing
applications
opens
gates
exciting
possibilities.
In
this
review,
we
provide
unified
picture
many
methods
that
fall
under
umbrella
term
“hyperpolarization”
but
currently
seldom
perceived
as
integral
parts
same
field.
Specifically,
before
delving
into
individual
techniques,
detailed
analysis
underlying
principles
We
attempt
uncover
classify
origins
hyperpolarization,
establish
sources
specific
mechanisms
enable
flow
polarization
from
source
target
spins.
then
give
more
hyperpolarization
techniques:
which
they
work,
technical
requirements,
characteristic
unresolved
issues,
possible
future
directions.
seeing
continuous
growth
activity
expect
flourish
improved
implemented.
Some
key
areas
development
prolonging
lifetimes,
making
generally
applicable
chemical/biological
systems,
reducing
equipment
creating
efficient
excitation
detection
schemes.
hope
review
will
facilitate
sharing
knowledge
between
subfields
within
topic
help
challenges
novel
applications.
