Local Piezoelectric Properties of Doped Biomolecular Crystals; Materials; Vol. 14, iss. 17
| Parent link: | Materials Vol. 14, iss. 17.— 2021.— [4922, 7 p.] |
|---|---|
| Autor Corporativo: | |
| Outros autores: | , , , , , |
| Summary: | Title screen Piezoelectricity is the ability of certain crystals to generate mechanical strain proportional to an external electric field. Though many biomolecular crystals contain polar molecules, they are frequently centrosymmetric, signifying that the dipole moments of constituent molecules cancel each other. However, piezoelectricity can be induced by stereospecific doping leading to symmetry reduction. Here, we applied piezoresponse force microscopy (PFM), highly sensitive to local piezoelectricity, to characterize (01?0) faces of a popular biomolecular material, ?-glycine, doped with other amino acids such as L-alanine and L-threonine as well as co-doped with both. We show that, while apparent vertical piezoresponse is prone to parasitic electrostatic effects, shear piezoelectric activity is strongly affected by doping. Undoped ?-glycine shows no shear piezoelectric response at all. The shear response of the L-alanine doped crystals is much larger than those of the L-threonine doped crystals and co-doped crystals. These observations are rationalized in terms of host–guest molecule interactions. |
| Idioma: | inglés |
| Publicado: |
2021
|
| Subjects: | |
| Acceso en liña: | https://doi.org/10.3390/ma14174922 |
| Formato: | Electrónico Capítulo de libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=667910 |
MARC
| LEADER | 00000naa0a2200000 4500 | ||
|---|---|---|---|
| 001 | 667910 | ||
| 005 | 20250331110113.0 | ||
| 035 | |a (RuTPU)RU\TPU\network\39121 | ||
| 035 | |a RU\TPU\network\37639 | ||
| 090 | |a 667910 | ||
| 100 | |a 20220513d2021 k||y0rusy50 ba | ||
| 101 | 0 | |a eng | |
| 102 | |a CH | ||
| 135 | |a drcn ---uucaa | ||
| 181 | 0 | |a i | |
| 182 | 0 | |a b | |
| 200 | 1 | |a Local Piezoelectric Properties of Doped Biomolecular Crystals |f A. L. Kholkin, D. Alikin, V. Ya. Shur [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 17 tit.] | ||
| 330 | |a Piezoelectricity is the ability of certain crystals to generate mechanical strain proportional to an external electric field. Though many biomolecular crystals contain polar molecules, they are frequently centrosymmetric, signifying that the dipole moments of constituent molecules cancel each other. However, piezoelectricity can be induced by stereospecific doping leading to symmetry reduction. Here, we applied piezoresponse force microscopy (PFM), highly sensitive to local piezoelectricity, to characterize (01?0) faces of a popular biomolecular material, ?-glycine, doped with other amino acids such as L-alanine and L-threonine as well as co-doped with both. We show that, while apparent vertical piezoresponse is prone to parasitic electrostatic effects, shear piezoelectric activity is strongly affected by doping. Undoped ?-glycine shows no shear piezoelectric response at all. The shear response of the L-alanine doped crystals is much larger than those of the L-threonine doped crystals and co-doped crystals. These observations are rationalized in terms of host–guest molecule interactions. | ||
| 461 | |t Materials | ||
| 463 | |t Vol. 14, iss. 17 |v [4922, 7 p.] |d 2021 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a α-glycine | |
| 610 | 1 | |a piezoelectricity | |
| 610 | 1 | |a doping | |
| 610 | 1 | |a piezoresponse force microscopy | |
| 610 | 1 | |a глицин | |
| 610 | 1 | |a пьезоэлектричество | |
| 610 | 1 | |a допинг | |
| 610 | 1 | |a силовая микроскопия | |
| 701 | 1 | |a Kholkin |b A. L. |c physicist |c Director of the International Research Center for PMEM of the Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences |f 1954- |g Andrei Leonidovich |3 (RuTPU)RU\TPU\pers\47207 | |
| 701 | 1 | |a Alikin |b D. |g Denis | |
| 701 | 1 | |a Shur |b V. Ya. |g Vladimir | |
| 701 | 1 | |a Shiri |b D. |g Dishon | |
| 701 | 1 | |a Ehre |b D. |g David | |
| 701 | 1 | |a Lubomirsky |b I. |g Igor | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Исследовательская школа химических и биомедицинских технологий |c (2017- ) |3 (RuTPU)RU\TPU\col\23537 |
| 801 | 0 | |a RU |b 63413507 |c 20220513 |g RCR | |
| 856 | 4 | |u https://doi.org/10.3390/ma14174922 | |
| 942 | |c CF | ||