Helm L - Search Results

1

Destroying gadofullerene aggregates by salt addition in aqueous solution of Gd@C(60)(OH)(x) and Gd@C(60)[C(COOH(2))](10).

Laus S, Sitharaman B, Tóth E, Bolskar RD, Helm L, Asokan S, Wong MS, Wilson LJ, Merbach AE. Laus S, et al. Among authors: helm l. J Am Chem Soc. 2005 Jul 6;127(26):9368-9. doi: 10.1021/ja052388+. J Am Chem Soc. 2005. PMID: 15984854 Free PMC article.

2

Multiexponential electronic spin relaxation and Redfield's limit in Gd(III) complexes in solution: consequences for 17O/1H NMR and EPR simultaneous analysis.

Borel A, Yerly F, Helm L, Merbach AE. Borel A, et al. Among authors: helm l. J Am Chem Soc. 2002 Mar 6;124(9):2042-8. doi: 10.1021/ja016919f. J Am Chem Soc. 2002. PMID: 11866619

3

Water-soluble gadofullerenes: toward high-relaxivity, pH-responsive MRI contrast agents.

Tóth E, Bolskar RD, Borel A, González G, Helm L, Merbach AE, Sitharaman B, Wilson LJ. Tóth E, et al. Among authors: helm l. J Am Chem Soc. 2005 Jan 19;127(2):799-805. doi: 10.1021/ja044688h. J Am Chem Soc. 2005. PMID: 15643906

4

Inorganic and bioinorganic solvent exchange mechanisms.

Helm L, Merbach AE. Helm L, et al. Chem Rev. 2005 Jun;105(6):1923-59. doi: 10.1021/cr030726o. Chem Rev. 2005. PMID: 15941206 Review. No abstract available.

5

A high-frequency EPR study of frozen solutions of Gd(III) complexes: straightforward determination of the zero-field splitting parameters and simulation of the NMRD profiles.

Benmelouka M, Van Tol J, Borel A, Port M, Helm L, Brunel LC, Merbach AE. Benmelouka M, et al. Among authors: helm l. J Am Chem Soc. 2006 Jun 21;128(24):7807-16. doi: 10.1021/ja0583261. J Am Chem Soc. 2006. PMID: 16771494

6

Rigid MIIL2Gd2III (M = Fe, Ru) complexes of a terpyridine-based heteroditopic chelate: a class of candidates for MRI contrast agents.

Costa J, Ruloff R, Burai L, Helm L, Merbach AE. Costa J, et al. Among authors: helm l. J Am Chem Soc. 2005 Apr 13;127(14):5147-57. doi: 10.1021/ja0424169. J Am Chem Soc. 2005. PMID: 15810849

7

Lanthanide ions as magnetic resonance imaging agents. Nuclear and electronic relaxation properties. Applications.

Helm L, Tóth E, Merbach AE. Helm L, et al. Met Ions Biol Syst. 2003;40:589-641. Met Ions Biol Syst. 2003. PMID: 12723160 No abstract available.

8

A highly stable gadolinium complex with a fast, associative mechanism of water exchange.

Thompson MK, Botta M, Nicolle G, Helm L, Aime S, Merbach AE, Raymond KN. Thompson MK, et al. Among authors: helm l. J Am Chem Soc. 2003 Nov 26;125(47):14274-5. doi: 10.1021/ja037441d. J Am Chem Soc. 2003. PMID: 14624565

9

Dinuclear, bishydrated Gd(III) polyaminocarboxylates with a rigid xylene core display remarkable proton relaxivities.

Costa J, Tóth E, Helm L, Merbach AE. Costa J, et al. Among authors: helm l. Inorg Chem. 2005 Jun 27;44(13):4747-55. doi: 10.1021/ic0500309. Inorg Chem. 2005. PMID: 15962983

10

Positively charged GdIII cryptates: slow, associative water exchange.

Burai L, Tóth E, Bazin H, Benmelouka M, Jászberényi Z, Helm L, Merbach AE. Burai L, et al. Among authors: helm l. Dalton Trans. 2006 Jan 28;(4):629-34. doi: 10.1039/b506700f. Epub 2005 Oct 31. Dalton Trans. 2006. PMID: 16402151

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