CPC A01N 1/0231 (2013.01) [G01N 1/4044 (2013.01)] | 10 Claims |
1. A method of preparing a biological sample comprising:
contacting a preserving agent with a biological sample to form a mixture, wherein the preserving agent is selected from at least one of a metal-organic framework (MOF) encapsulant or a precursor forming a MOF encapsulant, and wherein the biological sample comprises a biofluid comprising at least one target analyte; and
drop casting the mixture onto a fibrous substrate;
wherein the fibrous substrate is made of paper or cellulose; and
wherein a crystal interface is created between the protein and the fibrous substrate.
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