 
        
						Jennifer  M Connolly
	
					    												
Singapore						                            
                            
						
 Research Article
												Gold Nanosensitisers for Multimodal Optical Diagnostic Imaging and
Therapy of Cancer 						
Author(s): Vijay Raghavan, Jennifer  M Connolly, Hai Ming  Fan, Peter  Dockery, Antony  Wheatley, Ivan  Keogh and Malini  OlivoVijay Raghavan, Jennifer  M Connolly, Hai Ming  Fan, Peter  Dockery, Antony  Wheatley, Ivan  Keogh and Malini  Olivo             
						
												
				 Multi-modal nanoprobes have attracted much attention because of their superior chemical and physical properties that have great potential for early diagnosis and treatment of cancer. We report herein a novel stepwise fabrication of a gold nanoparticle-Raman reporter-photosensitiser conjugate called a Gold Nanosensitiser (NS). The efficacy of gold NS as multimodal nanoprobes for surface enhanced Raman spectroscopy (SERS) imaging and photodynamic (PDT) and photothermal treatment (PTT) of cancer were examined. NS were constructed using a multilayer technique in which a Raman reporter, DTTCI (3,3’-Diethylthiatricarbocyanine iodide) and a photosensitiser, hypericin, were coated onto gold nanostars. By adjusting the layer spacing, these coatings endowed NS with both enhanced SERS and fluorescence bioimaging capabilities. Excitation of the NS in solution at.. View More»
				  
												DOI:
												 10.4172/2157-7439.1000238