Self-Assembly of Nanodiamonds and Plasmonic Nanoparticles for Nanoscopy

Schmidheini, LukasSwiss Fed Inst Technol, Lab Biosensors & Bioelect, Inst Biomed Engn, CH-8092 Zurich, Switzerland. (författare)

De tre första författarna delar förstaförfattarskapet.
Nanodiamonds have emerged as promising agents for sensing and imaging due to their exceptional photostability and sensitivity to the local nanoscale environment. Here, we introduce a hybrid system composed of a nanodiamond containing nitrogen-vacancy center that is paired to a gold nanoparticle via DNA hybridization. Using multiphoton optical studies, we demonstrate that the harmonic mode emission generated in gold nanoparticles induces a coupled fluorescence emission in nanodiamonds. We show that the flickering of harmonic emission in gold nanoparticles directly influences the nanodiamonds' emissions, resulting in stochastic blinking. By utilizing the stochastic emission fluctuations, we present a proof-of-principle experiment to demonstrate the potential application of the hybrid system for super-resolution microscopy. The introduced system may find applications in intracellular biosensing and bioimaging due to the DNA-based coupling mechanism and also the attractive characteristics of harmonic generation, such as low power, low background and tissue transparency.

Tiefenauer, Raphael F.Swiss Fed Inst Technol, Lab Biosensors & Bioelect, Inst Biomed Engn, CH-8092 Zurich, Switzerland. (författare)
Gatterdam, VolkerSwiss Fed Inst Technol, Lab Biosensors & Bioelect, Inst Biomed Engn, CH-8092 Zurich, Switzerland. (författare)
Frutiger, AndreasSwiss Fed Inst Technol, Lab Biosensors & Bioelect, Inst Biomed Engn, CH-8092 Zurich, Switzerland. (författare)
Sannomiya, TakumiTokyo Inst Technol, Sch Mat & Chem Technol, Dept Mat Sci & Engn, Yokohama, Kanagawa 2268503, Japan. (författare)
Aramesh, MortezaUppsala universitet,Institutionen för materialvetenskap,Swiss Fed Inst Technol, Lab Biosensors & Bioelect, Inst Biomed Engn, CH-8092 Zurich, Switzerland.,Medicinsk teknik(Swepub:uu)morar401 (författare)
Swiss Fed Inst Technol, Lab Biosensors & Bioelect, Inst Biomed Engn, CH-8092 Zurich, Switzerland.Tokyo Inst Technol, Sch Mat & Chem Technol, Dept Mat Sci & Engn, Yokohama, Kanagawa 2268503, Japan. (creator_code:org_t)

Av författaren/redakt...: Schmidheini, Luk ...; Tiefenauer, Raph ...; Gatterdam, Volke ...; Frutiger, Andrea ...; Sannomiya, Takum ...; Aramesh, Morteza

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