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		<title>Gold-coated pencil graphite sensor detects breast cancer biomarker CA 15-3 without antibodies</title>
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		<category><![CDATA[biosensors]]></category>
		<category><![CDATA[breast]]></category>
		<category><![CDATA[Breast Cancer]]></category>
		<category><![CDATA[CA 15-3]]></category>
		<category><![CDATA[Electrochemical]]></category>
		<category><![CDATA[Electrochemical sensor]]></category>
		<category><![CDATA[gold nanoparticles]]></category>
		<category><![CDATA[label-free detection]]></category>
		<category><![CDATA[MUC1]]></category>
		<category><![CDATA[pencil graphite electrode]]></category>
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		<category><![CDATA[Thiol-mediated]]></category>
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					<description><![CDATA[A receptor-free electrochemical sensor uses gold-thiol chemistry on pencil graphite electrodes to detect the breast cancer biomarker CA 15-3 at 0.12 ppb in buffer and spiked plasma.]]></description>
		
		
		
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