Nanodiamond emulsions for enhanced quantum sensing and click-chemistry conjugation

• URL: http://arxiv.org/abs/2311.16530v1
• Date: Tue, 28 Nov 2023 05:28:40 GMT
• Title: Nanodiamond emulsions for enhanced quantum sensing and click-chemistry conjugation
• Authors: Henry J. Shulevitz, Ahmad Amirshaghaghi, Mathieu Ouellet, Caroline Brustoloni, Shengsong Yang, Jonah J. Ng, Tzu-Yung Huang, Davit Jishkariani, Christopher B. Murray, Andrew Tsourkas, Cherie R. Kagan, and Lee C. Bassett
• Abstract summary: We report a simple and general method to coat nanodiamonds with a thin emulsion layer that preserves their quantum features. We study the effect of the emulsion layer on the NV center's spin lifetime, and we quantify the nanodiamonds' chemical sensitivity to paramagnetic ions.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Nanodiamonds containing nitrogen-vacancy (NV) centers can serve as colloidal quantum sensors of local fields in biological and chemical environments. However, nanodiamond surfaces are challenging to modify without degrading their colloidal stability or the NV center's optical and spin properties. Here, we report a simple and general method to coat nanodiamonds with a thin emulsion layer that preserves their quantum features, enhances their colloidal stability, and provides functional groups for subsequent crosslinking and click-chemistry conjugation reactions. To demonstrate this technique, we decorate the nanodiamonds with combinations of carboxyl- and azide-terminated amphiphiles that enable conjugation using two different strategies. We study the effect of the emulsion layer on the NV center's spin lifetime, and we quantify the nanodiamonds' chemical sensitivity to paramagnetic ions using $T_1$ relaxometry. This general approach to nanodiamond surface functionalization will enable advances in quantum nanomedicine and biological sensing.

Related papers

• Characterization of the spin and crystal field Hamiltonian of erbium dopants in silicon [0.0]
  Er:Si platforms combine advanced wafer-scale nanofabrication technology with coherent emission in the minimal-loss band of optical fibers. Recent studies have reported two distinct sites in the silicon lattice in which erbium can be reproducibly integrated. This is a key step towards a detailed microscopic understanding of the erbium sites, which may help to improve the integration yield.
  arXiv  Detail & Related papers  (2024-09-10T15:07:27Z)
• Single photon emitters in monolayer semiconductors coupled to transition metal dichalcogenide nanoantennas on silica and gold substrates [49.87501877273686]
  Transition metal dichalcogenide (TMD) single photon emitters offer numerous advantages to quantum information applications. Traditional materials used for the fabrication of nanoresonators, such as silicon or gallium phosphide (GaP), often require a high refractive index substrate. Here, we use nanoantennas (NAs) fabricated from multilayer TMDs, which allow complete flexibility with the choice of substrate.
  arXiv  Detail & Related papers  (2024-08-02T07:44:29Z)
• Purcell enhancement and spin spectroscopy of silicon vacancy centers in silicon carbide using an ultra-small mode-volume plasmonic cavity [0.0]
  We report the integration of V$_Si$ centers with a plasmonic nanocavity to enhance the emission. The results highlight the potential of nanophotonic structures for advancing quantum networking technologies.
  arXiv  Detail & Related papers  (2024-07-08T13:51:10Z)
• Optically-Trapped Nanodiamond-Relaxometry Detection of Nanomolar Paramagnetic Spins in Aqueous Environments [2.1352459760485796]
  Nitrogen-Vacancy center in fluorescent nanodiamonds (FNDs) has emerged as a good candidate to sense temperature, pH, and paramagnetic species at the nanoscale. We show that optically-trapped FNDs enable highly reproducible nanomolar sensitivity to the paramagnetic ion.
  arXiv  Detail & Related papers  (2024-01-30T19:00:56Z)
• All-Optical Nuclear Quantum Sensing using Nitrogen-Vacancy Centers in Diamond [52.77024349608834]
  Microwave or radio-frequency driving poses a significant limitation for miniaturization, energy-efficiency and non-invasiveness of quantum sensors. We overcome this limitation by demonstrating a purely optical approach to coherent quantum sensing. Our results pave the way for highly compact quantum sensors to be employed for magnetometry or gyroscopy applications.
  arXiv  Detail & Related papers  (2022-12-14T08:34:11Z)
• Sensing of magnetic field effects in radical-pair reactions using a quantum sensor [50.591267188664666]
  Magnetic field effects (MFE) in certain chemical reactions have been well established in the last five decades. We employ elaborate and realistic models of radical-pairs, considering its coupling to the local spin environment and the sensor. For two model systems, we derive signals of MFE detectable even in the weak coupling regime between radical-pair and NV quantum sensor.
  arXiv  Detail & Related papers  (2022-09-28T12:56:15Z)
• Van der Waals Materials for Applications in Nanophotonics [49.66467977110429]
  We present an emerging class of layered van der Waals (vdW) crystals as a viable nanophotonics platform. We extract the dielectric response of 11 mechanically exfoliated thin-film (20-200 nm) van der Waals crystals, revealing high refractive indices up to n = 5. We fabricate nanoantennas on SiO$$ and gold utilizing the compatibility of vdW thin films with a variety of substrates.
  arXiv  Detail & Related papers  (2022-08-12T12:57:14Z)
• Nanodiamonds based optical-fiber quantum probe for magnetic field and biological sensing [6.643766442180283]
  In this work, a miniature optical-fiber quantum probe, configured by chemically-modifying nanodiamonds NV centers, is developed. The magnetic field detection sensitivity of the probe is significantly enhanced to 0.57 nT/Hz1/2 @ 1Hz, a new record among the fiber magnetometers based on nanodiamonds NV.
  arXiv  Detail & Related papers  (2022-02-24T01:41:13Z)
• Template-Assisted Self Assembly of Fluorescent Nanodiamonds for Scalable Quantum Technologies [3.7694254364723276]
  Milled nanodiamonds containing nitrogen-vacancy (NV) centers provide an excellent platform for sensing applications. We present a scalable strategy to form ordered arrays of nanodiamonds using capillary-driven, template-assisted self assembly.
  arXiv  Detail & Related papers  (2021-11-29T19:51:27Z)
• Chemical tuning of spin clock transitions in molecular monomers based on nuclear spin-free Ni(II) [52.259804540075514]
  We report the existence of a sizeable quantum tunnelling splitting between the two lowest electronic spin levels of mononuclear Ni complexes. The level anti-crossing, or magnetic clock transition, associated with this gap has been directly monitored by heat capacity experiments. The comparison of these results with those obtained for a Co derivative, for which tunnelling is forbidden by symmetry, shows that the clock transition leads to an effective suppression of intermolecular spin-spin interactions.
  arXiv  Detail & Related papers  (2021-03-04T13:31:40Z)
• High-Q Nanophotonic Resonators on Diamond Membranes using Templated Atomic Layer Deposition of TiO2 [48.7576911714538]
  Integrating quantum emitters with nanophotonic resonators is essential for efficient spin-photon interfacing and optical networking applications. Here, we develop an integrated photonics platform based on templated atomic layer deposition of TiO2 on diamond membranes. Our fabrication method yields high-performance nanophotonic devices while avoiding etching wavelength-scale features into diamond.
  arXiv  Detail & Related papers  (2020-04-07T16:43:46Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.