TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The catalytic material is a hydrotreatment catalyst. The catalytic material comprises at least one of nickel, nickel phosphide, iron, iron oxide, rhodium, ruthenium, gold, cobalt, cobalt oxide, palladium, platinum, and molybdenum. The mesoporous silica nanoparticle is magnetic. The mesoporous silica nanoparticle comprises an ordered silicon oxide matrix with hexagonal symmetry.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Nanoparticle: The adsorbent catalytic nanoparticle catalyzes decarboxylation and hydrodeoxygenation of a free fatty acid at a higher rate than a mesoporous nanoparticle not having the adsorbent functional group bound to it. The adsorbent catalytic nanoparticle catalyzes cracking of a free fatty acid at a lower rate than a corresponding mesoporous silica nanoparticle not having the adsorbent functional group bound to it. The adsorbent catalytic nanoparticle comprises 1-30 wt.% of the catalytic material. Preferred Method: The method (M1) involves combining the mixture with a first reagent, under conditions so that the catalytic material in the adsorbent catalytic nanoparticle catalyzes a chemical transformation of the first molecule. Combining the adsorbent catalytic nanoparticle with the first molecule, involves: combining the adsorbent catalytic nanoparticle with a solution comprising the first molecule, to provide the mixture, where the solution further comprises at least one second molecule that is at least one of a) not adsorbed by the adsorbent functional group and b) adsorbed by the adsorbent functional group at a lower rate than the first molecule is adsorbed by the adsorbent functional group. The method (M1) involves: separating the adsorbent catalytic nanoparticle having the first molecule adsorbed to it from the mixture. The method (M1) involves combining the separated adsorbent catalytic nanoparticle with a first reagent under conditions so that the catalytic material in the adsorbent catalytic nanoparticle catalyzes a chemical transformation of the first molecule. Preferred Components: The adsorbent functional group adsorbs fatty acids at a higher rate than it adsorbs at least one of fatty acid esters and triglycerides. The adsorbent functional group comprises at least one of amino(1-10C alkyl) group and its salt, where the alkyl unit is covalently bound to the mesoporous silica nanoparticle. The adsorbent functional group is present in a concentration of 0.01 -50 mmol per gram of the mesoporous silica nanoparticle. The second molecule is at least one of a fatty acid ester and a triglyceride. The first molecule is a fatty acid. EXAMPLE - 7 g Pluronic P104 (RTM: nonionic surfactant) was added to 273 g hydrochloric acid (HCl). After stirring for 1 hour at 56 degrees C, 10.64 g tetramethylorthosilicate was added and stirred for an additional 24 hours. The resulting mixture was further post hydrothermally treated for 24 hours at 150 degrees C in a high-pressure reactor. Upon cooling to room temperature, the white solid was collected by filtration, washed with methanol and dried in air to obtain mesoporous silica nanoparticles (MSN). To remove the surfactant P104 by calcination, the MSN material was heated at a ramp rate of 1.5 degrees C.min-1 and maintained at 550 degrees C for 6 hours.