A search for interstellar glycine

Study of Polymer Material Aging by Laser Mass Spectrometry, UV-Visible Spectroscopy, and Environmental Scanning Electron Microscopy

“…Among these are FTT reactions; ion-molecule and radical-radical reactions; γ-, proton-and UV-irradiation; Strecker's type reactions involving aqueous processing of simple molecules such as H 2 O, HCN, H 2 CO and NH 3 ; internal heating of the parent body produced by the radioactive decay of short-lived nuclides. Although quite significant amounts of glycine are detected in the Murchison meteorite, no ascertained interstellar glycine has yet been identified since its first observational report in 1979 [47] suggesting that molecules formed in the interstellar medium, ISM, underwent further processing. It has been suggested that the primary products from proton irradiation of a mixture of CO, N 2 /NH 3 , H 2 O are amino acid precursors, molecules that provide amino acids after acid hydrolysis [36,38].…”

The reaction between NH3+and CH3COOH: a possible process for the formation of glycine precursors in the interstellar medium

“…The presence of amino acids in the interstellar medium would be of crucial importance to understanding the possible pathways in the origin of life in the Universe. Nevertheless, after more than two decades of continuous searches in space no convincing detection of even the simplest amino acid, glycine, has been reported (Brown et al 1979;Hollis et al 1980;Snyder et al 1983;Combes et al 1996;Ceccarelli et al 2000;Kuan et al 2003;Hollis et al 2003a,b;Snyder et al 2005;Guélin et al 2008). …”

Millimeter wave spectrum of glycine

“…The laboratory studies cited above provided a basis for a variety of radio astronomy searches for interstellar glycine (NH 2 CH 2 COOH) [6][7][8][9][10][11][12][13][14][15], that started as soon as the laboratory data on its spectrum became available [1,2]. These interstellar searches have used both singleelement telescopes [6][7][8][9][10][11][12] and interferometric arrays [13][14][15] and all were unsuccessful.…”

“…These interstellar searches have used both singleelement telescopes [6][7][8][9][10][11][12] and interferometric arrays [13][14][15] and all were unsuccessful. Recently, Kuan et al.…”