Data/hora: 21/06/2024 05:12:39

Biblioteca(s): | Embrapa Instrumentação.
Data corrente: | 14/05/2021
Data da última atualização: | 10/06/2022
Autoria: | MONARETTO, T.; MORAES, T. B.; COLNAGO, L. A.
Afiliação: | LUIZ ALBERTO COLNAGO, CNPDIA.
Título: | Recent 1D and 2D TD NMR pulse sequences for plant science.
Ano de publicação: | 2021
Fonte/Imprenta: | Plants, v. 10, n. 833, 2021.
DOI: | https://doi.org/10.3390/plants10050833
Idioma: | Inglês
Conteúdo: | Time domain nuclear magnetic resonance (TD–NMR) has been widely applied in plant science in the last four decades. Several TD–NMR instruments and methods have been developed for laboratory, green-house, and field studies. This mini-review focuses on the recent TD–NMR pulse sequences applied in plant science. One of the sequences measures the transverse relaxation time (T2 ) with minimal sample heating, using a lower refocusing flip angle and consequently lower specific absorption rate than that of conventional CPMG. Other sequences are based on a continuous wave free precession (CWFP) regime used to enhance the signal-to-noise ratio, to measure longitudinal (T1 ) and transverse relaxation time in a single shot experiment, and as alternative 2D pulse sequences to obtain T1–T2 and diffusion-T1 correlation maps. This review also presents some applications of these sequences in plant science.
Palavras-Chave: | Carr-Purcell-Meiboom-Gill (CPMG); CWFP; Pulse sequence; Relaxation measurement; Time domain NMR.
Categoria do assunto: | --
Registro original: | Embrapa Instrumentação (CNPDIA)
Exemplares: | CNPDIA - (17776-1) - UPC - AP - DD - PROCI.21/37 -  - 2021/37 - DIS