Quantum-grade nanodiamonds for ultrabright spin detection in live cells

• URL: http://arxiv.org/abs/2312.17603v2
• Date: Wed, 31 Jan 2024 07:27:39 GMT
• Title: Quantum-grade nanodiamonds for ultrabright spin detection in live cells
• Authors: Keisuke Oshimi, Hiromu Nakashima, Sara Mandi\'c, Hina Kobayashi, Minori Teramoto, Hirokazu Tsuji, Yoshiki Nishibayashi, Yutaka Shikano, Toshu An, and Masazumi Fujiwara
• Abstract summary: Optically accessible spin-active nanomaterials are promising as quantum nanosensors for probing biological samples. We demonstrate ultrabright fluorescent nanodiamonds (NDs) containing 0.6-1.3-ppm nitrogen-vacancy (NV) centers by spin-environment engineering.
• Score: 0.49824235871245376
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Optically accessible spin-active nanomaterials are promising as quantum nanosensors for probing biological samples. However, achieving bioimaging-level brightness and high-quality spin properties for these materials is challenging and hinders their application in quantum biosensing. Here, we demonstrate ultrabright fluorescent nanodiamonds (NDs) containing 0.6-1.3-ppm nitrogen-vacancy (NV) centers by spin-environment engineering via enriching spin-less 12C-carbon isotopes and reducing substitutional nitrogen spin impurities. The NDs, readily introduced into cultured cells, exhibited substantially narrow optically detected magnetic resonance (ODMR) spectra, requiring 16-times less microwave excitation power to give an ODMR depth comparable to that of conventional type-Ib NDs. They show average spin-relaxation times of T1 = 0.68 ms and T_2 = 1.6 us (1.6 ms and 2.7 us maximum) that were 5- and 11-fold longer than those of type-Ib, respectively. The bulk-like NV spin properties and bright fluorescence demonstrated in this study significantly improve the sensitivity of ND-based quantum sensors for biological applications.

Related papers

• Site-Controlled Purcell-Induced Bright Single Photon Emitters in Hexagonal Boron Nitride [62.170141783047974]
  Single photon emitters hosted in hexagonal boron nitride (hBN) are essential building blocks for quantum photonic technologies that operate at room temperature. We experimentally demonstrate large-area arrays of plasmonic nanoresonators for Purcell-induced site-controlled SPEs. Our results offer arrays of bright, heterogeneously integrated quantum light sources, paving the way for robust and scalable quantum information systems.
  arXiv  Detail & Related papers  (2024-05-03T23:02:30Z)
• Optically-Trapped Nanodiamond-Relaxometry Detection of Nanomolar Paramagnetic Spins in Aqueous Environments [2.246214491914363]
  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)
• 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)
• Nanoscale Solid-State Nuclear Quadrupole Resonance Spectroscopy using Depth-Optimized Nitrogen-Vacancy Ensembles in Diamond [9.322875230001717]
  Nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) spectroscopy of bulk quantum materials have provided insight into phenomena such as quantum phase criticality, magnetism, and superconductivity. With the emergence of nanoscale 2-D materials with magnetic phenomena, inductively-detected NMR and NQR spectroscopy are not sensitive enough to detect the smaller number of spins in nanomaterials. The nitrogen-vacancy (NV) center in diamond has shown promise in bringing the analytic power of NMR and NQR spectroscopy to the nanoscale.
  arXiv  Detail & Related papers  (2021-12-29T22:19:17Z)
• Rapidly enhanced spin polarization injection in an optically pumped spin ratchet [49.1301457567913]
  We report on a strategy to boost the spin injection rate by exploiting electrons that can be rapidly polarized. We demonstrate this in a model system of Nitrogen Vacancy center electrons injecting polarization into a bath of 13C nuclei in diamond. Through a spin-ratchet polarization transfer mechanism, we show boosts in spin injection rates by over two orders of magnitude.
  arXiv  Detail & Related papers  (2021-12-14T08:23:10Z)
• Phonon dephasing and spectral diffusion of quantum emitters in hexagonal Boron Nitride [52.915502553459724]
  Quantum emitters in hexagonal boron nitride (hBN) are emerging as bright and robust sources of single photons for applications in quantum optics. We study phonon dephasing and spectral diffusion of quantum emitters in hBN via resonant excitation spectroscopy at cryogenic temperatures.
  arXiv  Detail & Related papers  (2021-05-25T05:56:18Z)
• Laser threshold magnetometry using green light absorption by diamond nitrogen vacancies in an external cavity laser [52.77024349608834]
  Nitrogen vacancy (NV) centers in diamond have attracted considerable recent interest for use in quantum sensing. We show theoretical sensitivity to magnetic field on the pT/sqrt(Hz) level is possible using a diamond with an optimal density of NV centers.
  arXiv  Detail & Related papers  (2021-01-22T18:58:05Z)
• Single germanium vacancy centres in nanodiamonds with bulk-like spectral stability [0.0]
  We study single germanium-vacancy (GeV$-$) centres in nanodiamonds (NDs) for hybrid technology requiring a single photon source. We characterize their zero-phonon line (ZPL), study their internal population dynamics and compare their emission properties.
  arXiv  Detail & Related papers  (2020-10-29T10:44:56Z)
• Optical repumping of resonantly excited quantum emitters in hexagonal boron nitride [52.77024349608834]
  We present an optical co-excitation scheme which uses a weak non-resonant laser to reduce transitions to a dark state and amplify the photoluminescence from quantum emitters in hexagonal boron nitride (hBN) Our results are important for the deployment of atom-like defects in hBN as reliable building blocks for quantum photonic applications.
  arXiv  Detail & Related papers  (2020-09-11T10:15:22Z)
• Nanoscale Detection of Magnon Excitations with Variable Wavevectors Through a Quantum Spin Sensor [0.0]
  We report the optical detection of magnons with a broad range of wavevectors in magnetic insulator Y3Fe5O12 thin films by proximate nitrogen-vacancy (NV) single-spin sensors. Our results highlight the significant opportunities offered by NV single-spin quantum sensors in exploring nanoscale spin dynamics of emergent spintronic materials.
  arXiv  Detail & Related papers  (2020-04-23T10:58:24Z)

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.