Engineered and precisely arrayed nanoantennas manufactured by low-cost nanostencil lithography enable plasmonically enhanced vibrational biospectroscopy. These nanoantennas fabricated by reusable stencils lead to strong near-field enhancements over large areas. Antibody assays and detection of immunologically important small proteins with high absorption signals are demonstrated.
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Aksu et al. (2013) studied this question.
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