In this study, we investigated the effects of strong magnetic fields of up
to 14 T on the near-infrared spectrum of water molecules. We used a near-in
frared spectrophotometer, which has an external optical cell box in a 14 T
superconducting magnet. We measured the near-infrared spectrum of water in
the range of 900-2000 nm by changing the optical path lengths from 0.1 to 1
00 mm. The peak wavelengths in the near-infrared spectrum in the range of 9
00-2000 nm of water, increased in length by 1-3 nm under a 14 T magnetic fi
eld. Also, we measured a near-infrared spectrum of glucose solutions under
a magnetic field at 14 T to investigate the hydration of sugar. In contrast
to the case of water, the peak wavelength of glucose solutions showed blue
shift under a 14 T magnetic field. When the magnetic fields were changed fr
om 0 to 14 T, the differential optical absorbance of the glucose solution a
t 958 nm increased compared to the controls. There is a possibility that th
e 14 T magnetic field affects the formation of hydrogen bonds of water mole
cules and the hydration of glucose molecules. (C) 1998 American Institute o
f Physics. [S0021-8979(98)39011-8].