A study of helium-3 nuclear magnetic relaxation mechanism in contact with 20 nm DyF nanoparticles.

The spin kinetics of adsorbed and liquid He in contact with a mixture of LaF (99.67 %) and DyF (0.33 %) 20 nm powders at temperatures of 1.

Microporous Block Copolymers Modified with Cu(II)-Coordinated Polyethylene Oxide-Substituted Silicas for Analytical Sensors.

The influence of stable-to-self-condensation Cu(II)-coordinated polyoxyethylene-substituted silicas (ASiP-Cu-0.5) on the synthesis of microporous block copolymers (OBCs) whose structural feature is the existence of coplanar polyisocyanate blocks of acetal nature (O-polyisocyanates) and a flexible-chain component of amphiphilic nature was studied. The use of ASiP-Cu-0.

Diffusion Anisotropy of Gaseous Helium-3 in Ordered Aerogels at Low Temperatures.

We report on the first observation of diffusion anisotropy of gaseous helium-3 entrapped in ordered aerogels at 4.2 K. The origins of He diffusion anisotropy in aerogels of different porosity are discussed.

TheHe nuclear magnetic relaxation in nematically ordered AlOaerogels: effects ofHe and nitrogen pre-plating.

The results ofHe gas pulsed NMR spin-lattice relaxation study in high-porosity (84.9%-97.9%) nematically ordered AlOaerogels at 1.

Anisotropic reduced diffusion in dilute liquid He-He mixture in ordered aerogel.

We report on the first observation of He diffusion anisotropy in He-He liquid mixture confined in ordered aerogels at 1.5-4.2 K temperatures.

Reply to 'Comment on "Angstrom-scale probing of paramagnetic centers location in nanodiamonds by He NMR at low temperatures"' by A. Shames, V. Osipov and A. Panich, Phys. Chem. Chem. Phys. 2018, 20, DOI.

Shames et al. made a comment on our article (DOI: 10.1039/C7CP05898E) stating that their experience in EPR studies of detonation nanodiamonds suggests the existence of two main types of paramagnetic center in detonation nanodiamonds which questions our results.

Angstrom-scale probing of paramagnetic centers location in nanodiamonds by He NMR at low temperatures.

In this article a method to assess the location of paramagnetic centers in nanodiamonds was proposed. The nuclear magnetic relaxation of adsorbed He used as a probe in this method was studied at temperatures of 1.5-4.

Helium-3 gas self-diffusion in a nematically ordered aerogel at low temperatures: enhanced role of adsorption.

We performed He gas diffusion measurements for the first time in a highly porous ordered AlO aerogel sample at a temperature of 4.2 K using a nuclear magnetic resonance field gradient technique. A strong influence of He adsorption in the aerogel on self-diffusion is observed.

Achieving high spatial resolution and high SNR in low-field MRI of hyperpolarised gases with Slow Low Angle SHot.

MRI of hyperpolarised gases is usually performed with fast data acquisition to achieve high spatial resolutions despite rapid diffusion-induced signal attenuation. We describe a double-cross k-space sampling scheme suitable for Slow Low Angle SHot (SLASH) acquisition and yielding an increased SNR. It consists of a series of anisotropic partial acquisitions with a reduced resolution in the read direction, which alleviates signal attenuation and still provides a high isotropic resolution.

[The intravesical administration of BCG vaccine in treating recurrent superficial bladder cancer].

The authors consider general immunological effects of intravesical BCG vaccine as an independent method of immunotherapy of superficial cancer of the bladder (CB). 27 patients (15 males and 12 females, mean age 57 years) with a recurrence of superficial CB (T1-2N0M0) were treated. The patients had undergone transurethral or transvesical bladder resection and combined therapy.