free al is the functional group in glucose that has reducing properties.
what functional group in glucose has reducing properties?
free al
another method of silver nanoparticle synthesis includes the use of reducing sugars with alkali starch and silver nitrate. the reducing sugars have free aldehyde and ketone groups, which enable them to be oxidized into gluconate. the monosaccharide must have a free ketone group because in order to act as a reducing agent it first undergoes tautomerization. in addition, if the aldehydes are bound, it will be stuck in cyclic form and cannot act as a reducing agent. for example, glucose has an aldehyde functional group that is able to reduce silver cations to silver atoms and is then oxidized to gluconic acid. the reaction for the sugars to be oxidized occurs in aqueous solutions. the capping agent is also not present when heated.
silver nanoparticle
two major methods have been used to measure glucose. the first, still in use in some places, is a chemical method exploiting the nonspecific reducing property of glucose in a reaction with an indicator substance that changes color when reduced. since other blood compounds also have reducing properties (e.g., urea, which can be abnormally high in uremic patients), this technique can produce erroneous readings in some situations (5–15 mg/dl has been reported). the more recent technique, using enzymes specific to glucose, is less susceptible to this kind of error. the two most common employed enzymes are glucose oxidase and hexokinase. average blood glucose concentrations can also be measured. this method measures the level of glycated hemoglobin, which is representative of the average blood glucose levels over the last, approximately, 120 days.
blood sugar level