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. 2015 Oct 23;5:15459. doi: 10.1038/srep15459

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(a) Normalized THz transmittances using a nano-antenna array with a fundamental resonance at 1.7 THz are shown for Coca-Cola Zero, Coca-Cola Light, Coca-Cola Classic, Pepsi-Cola, and Sprite. (b) The total concentrations of sugars and sweeteners in the real market beverages from the manufacturers. (c) Absorption coefficients for acesulfame K and aspartame. The insets show the structural formulas.