Ralf Schirrmacher

Author PubWeight™ 36.34‹?›

Top papers

Rank Title Journal Year PubWeight™‹?›
1 para-Functionalized aryl-di-tert-butylfluorosilanes as potential labeling synthons for (18)F radiopharmaceuticals. Chemistry 2009 1.18
2 Parametric mapping of binding in human brain of D2 receptor ligands of different affinities. J Nucl Med 2005 1.15
3 The temporal dynamics of poststroke neuroinflammation: a longitudinal diffusion tensor imaging-guided PET study with 11C-PK11195 in acute subcortical stroke. J Nucl Med 2010 1.11
4 A universally applicable 68Ga-labeling technique for proteins. J Nucl Med 2011 1.10
5 Synthesis of p-(di-tert-butyl[(18)F]fluorosilyl)benzaldehyde ([(18)F]SiFA-A) with high specific activity by isotopic exchange: a convenient labeling synthon for the (18)F-labeling of N-amino-oxy derivatized peptides. Bioconjug Chem 2007 1.03
6 (89)Zr, a radiometal nuclide with high potential for molecular imaging with PET: chemistry, applications and remaining challenges. Molecules 2013 1.01
7 Kit-like 18F-labeling of proteins: synthesis of 4-(di-tert-butyl[18F]fluorosilyl)benzenethiol (Si[18F]FA-SH) labeled rat serum albumin for blood pool imaging with PET. Bioconjug Chem 2009 1.01
8 One-step (18)F-labeling of peptides for positron emission tomography imaging using the SiFA methodology. Nat Protoc 2012 1.00
9 Generation of novel single-chain antibodies by phage-display technology to direct imaging agents highly selective to pancreatic beta- or alpha-cells in vivo. Diabetes 2009 0.97
10 Where in-vivo imaging meets cytoarchitectonics: the relationship between cortical thickness and neuronal density measured with high-resolution [18F]flumazenil-PET. Neuroimage 2010 0.94
11 Inhibition of O6-methylguanine-DNA methyltransferase by glucose-conjugated inhibitors: comparison with nonconjugated inhibitors and effect on fotemustine and temozolomide-induced cell death. J Pharmacol Exp Ther 2004 0.93
12 Synthesis of [(18)F]SiFB: a prosthetic group for direct protein radiolabeling for application in positron emission tomography. Nat Protoc 2012 0.92
13 External awareness and GABA--a multimodal imaging study combining fMRI and [18F]flumazenil-PET. Hum Brain Mapp 2012 0.91
14 Preparation of water-soluble maleimide-functionalized 3 nm gold nanoparticles: a new bioconjugation template. Langmuir 2012 0.90
15 [18F]azadibenzocyclooctyne ([18F]ADIBO): a biocompatible radioactive labeling synthon for peptides using catalyst free [3+2] cycloaddition. Bioorg Med Chem Lett 2011 0.90
16 Synthesis and in vitro evaluation of (S)-2-([11C]methoxy)-4-[3-methyl-1-(2-piperidine-1-yl-phenyl)-butyl-carbamoyl]-benzoic acid ([11C]methoxy-repaglinide): a potential beta-cell imaging agent. Bioorg Med Chem Lett 2004 0.90
17 Protein labeling with the labeling precursor [(18)F]SiFA-SH for positron emission tomography. Nat Protoc 2012 0.90
18 Multimodal microglia imaging of fiber tracts in acute subcortical stroke. Ann Neurol 2009 0.89
19 Oxalic acid supported Si-18F-radiofluorination: one-step radiosynthesis of N-succinimidyl 3-(di-tert-butyl[18F]fluorosilyl)benzoate ([18F]SiFB) for protein labeling. Bioconjug Chem 2012 0.89
20 Synthesis and in vitro evaluation of biotinylated RG108: a high affinity compound for studying binding interactions with human DNA methyltransferases. Bioconjug Chem 2006 0.88
21 One-step ¹⁸F-labeling of carbohydrate-conjugated octreotate-derivatives containing a silicon-fluoride-acceptor (SiFA): in vitro and in vivo evaluation as tumor imaging agents for positron emission tomography (PET). Bioconjug Chem 2010 0.87
22 Basal opioid receptor binding is associated with differences in sensory perception in healthy human subjects: a [18F]diprenorphine PET study. Neuroimage 2009 0.86
23 Synthesis of 3-chloro-6-((4-(di-tert-butyl[(18)F]fluorosilyl)-benzyl)oxy)-1,2,4,5-tetrazine ([(18)F]SiFA-OTz) for rapid tetrazine-based (18)F-radiolabeling. Chem Commun (Camb) 2015 0.85
24 [68Ga]-albumin-PET in the monitoring of left ventricular function in murine models of ischemic and dilated cardiomyopathy: comparison with cardiac MRI. Mol Imaging Biol 2013 0.85
25 Evaluation of an automated double-synthesis module: efficiency and reliability of subsequent radiosyntheses of FHBG and FLT. Nucl Med Biol 2011 0.83
26 Synthesis and preliminary evaluation of (R,R)(S,S) 5-(2-(2-[4-(2-[(18)F]fluoroethoxy)phenyl]-1-methylethylamino)-1-hydroxyethyl)-benzene-1,3-diol ([(18)F]FEFE) for the in vivo visualisation and quantification of the beta2-adrenergic receptor status in lung. Bioorg Med Chem Lett 2003 0.82
27 Multimerization of cRGD peptides by click chemistry: synthetic strategies, chemical limitations, and influence on biological properties. Chembiochem 2010 0.82
28 Improved work-up procedure for the production of [(18)F]flumazenil and first results of its use with a high-resolution research tomograph in human stroke. Nucl Med Biol 2009 0.82
29 Opioid receptor PET reveals the psychobiologic correlates of reward processing. J Nucl Med 2008 0.81
30 GABA(A) receptors in visual and auditory cortex and neural activity changes during basic visual stimulation. Front Hum Neurosci 2012 0.81
31 Synthesis and in vitro and in vivo evaluation of SiFA-tagged bombesin and RGD peptides as tumor imaging probes for positron emission tomography. Bioconjug Chem 2014 0.81
32 Synthesis of 131I-labeled glucose-conjugated inhibitors of O6-methylguanine-DNA methyltransferase (MGMT) and comparison with nonconjugated inhibitors as potential tools for in vivo MGMT imaging. J Med Chem 2006 0.81
33 GABAA receptors predict aversion-related brain responses: an fMRI-PET investigation in healthy humans. Neuropsychopharmacology 2013 0.80
34 Radiolabeled heterobivalent peptidic ligands: an approach with high future potential for in vivo imaging and therapy of malignant diseases. ChemMedChem 2013 0.80
35 Rapid (18)F-labeling and loading of PEGylated gold nanoparticles for in vivo applications. Bioconjug Chem 2014 0.79
36 t-Bu2SiF-derivatized D2-receptor ligands: the first SiFA-containing small molecule radiotracers for target-specific PET-imaging. Molecules 2011 0.78
37 Chemical modification of single walled carbon nanotubes with tetrazine-tethered gold nanoparticles via a Diels-Alder reaction. Chem Commun (Camb) 2013 0.78
38 DOTA derivatives for site-specific biomolecule-modification via click chemistry: synthesis and comparison of reaction characteristics. Bioorg Med Chem 2010 0.78
39 Towards tropomyosin-related kinase B (TrkB) receptor ligands for brain imaging with PET: radiosynthesis and evaluation of 2-(4-[(18)F]fluorophenyl)-7,8-dihydroxy-4H-chromen-4-one and 2-(4-([N-methyl-(11)C]-dimethylamino)phenyl)-7,8-dihydroxy-4H-chromen-4-one. Bioorg Med Chem 2013 0.78
40 Establishment and functional validation of a structural homology model for human DNA methyltransferase 1. Biochem Biophys Res Commun 2003 0.77
41 Simple and convenient radiolabeling of proteins using a prelabeling-approach with thiol-DOTA. Bioorg Med Chem Lett 2009 0.77
42 Positron emission tomography in the assessment of left ventricular function in healthy rats: a comparison of four imaging methods. J Nucl Cardiol 2012 0.77
43 A Nutritional Perspective of Ketogenic Diet in Cancer: A Narrative Review. J Acad Nutr Diet 2017 0.76
44 Shuttle-cargo fusion molecules of transport peptides and the hD2/3 receptor antagonist fallypride: a feasible approach to preserve ligand-receptor binding? J Med Chem 2014 0.75
45 Radiosynthesis and Preclinical Evaluation of (18)F-Fluoroglycosylated Octreotate for Somatostatin Receptor Imaging. Bioconjug Chem 2016 0.75
46 PESIN multimerization improves receptor avidities and in vivo tumor targeting properties to GRPR-overexpressing tumors. Bioconjug Chem 2014 0.75
47 Temporal changes in phosphatidylserine expression and glucose metabolism after myocardial infarction: an in vivo imaging study in mice. Mol Imaging 2012 0.75
48 Fully automated SPE-based synthesis and purification of 2-[18F]fluoroethyl-choline for human use. Nucl Med Biol 2010 0.75
49 Direct one-step labeling of cysteine residues on peptides with [(11)C]methyl triflate for the synthesis of PET radiopharmaceuticals. Amino Acids 2013 0.75
50 In vitro and initial in vivo evaluation of (68)Ga-labeled transferrin receptor (TfR) binding peptides as potential carriers for enhanced drug transport into TfR expressing cells. Mol Imaging Biol 2011 0.75
51 Syntheses and evaluation of carbon-11- and fluorine-18-radiolabeled pan-tropomyosin receptor kinase (Trk) inhibitors: exploration of the 4-aza-2-oxindole scaffold as Trk PET imaging agents. ACS Chem Neurosci 2014 0.75
52 18F-Radiolabeling and In Vivo Analysis of SiFA-derivatized Polymeric Core-Shell Nanoparticles. Bioconjug Chem 2017 0.75