Sandra Ast

683 citations

23 papers · 591 · h-index 13

Impact in

Bioengineering top 1%
- Analytical Chemistry and Sensors
Spectroscopy top 5%
- Molecular Sensors and Ion Detection

Papers in

Bioengineering 9
- Analytical Chemistry and Sensors 9
Spectroscopy 10
- Molecular Sensors and Ion Detection 10

Co-authors: Peter J. Rutledge (15 shared papers)John Canning (12 shared papers)Abbas Jamalipour (10 shared papers)Md Arafat Hossain (10 shared papers)Matthew H. Todd (6 shared papers)Holger Müller (4 shared papers)Hans‐Jürgen Holdt (4 shared papers)Kevin Cook (3 shared papers)
Journals: European Journal of Inorganic Chemistry (2 papers)Chemical Communications (2 papers)Chemistry - A European Journal (2 papers)The Analyst (2 papers)Physical Chemistry Chemical Physics (1 paper)
Partner nations: Australia Germany Russia

In The Last Decade

Sandra Ast

22 papers receiving 575 citations

Peers

Countries citing papers authored by Sandra Ast

Since Specialization

Citations

This map shows the geographic impact of Sandra Ast's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Sandra Ast with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Sandra Ast more than expected).

Fields of papers citing papers by Sandra Ast

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Sandra Ast. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Sandra Ast. The network helps show where Sandra Ast may publish in the future.

Co-authors

The 25 scholars most cited alongside Sandra Ast, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Sandra Ast Line = papers co-authored together Sandra Ast links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 23 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Combined “dual” absorption and fluorescence smartphone spectrometers Optics Letters ·Md Arafat Hossain, John Canning, Sandra Ast, Kevin Cook, Peter J. Rutledge, Abbas Jamalipour	2015	94
2	Lab-in-a-Phone: Smartphone-Based Portable Fluorometer for pH Measurements of Environmental Water IEEE Sensors Journal ·Arafat Hossain, John Canning, Sandra Ast, Peter J. Rutledge, Teh Li Yen, Abbas Jamalipour	2014	91
3	A Highly K+‐Selective Phenylaza‐[18]crown‐6‐Lariat‐Ether‐Based Fluoroionophore and Its Application in the Sensing of K+ Ions with an Optical Sensor Film and in Cells Chemistry - A European Journal ·Sandra Ast, Thomas Schwarze, Holger Müller, Aleksey V. Sukhanov, Stefanie Michaelis, Joachim Wegener, Otto S. Wolfbeis, Thomas Körzdörfer	2013	64
4	Integration of the 1,2,3‐Triazole “Click” Motif as a Potent Signalling Element in Metal Ion Responsive Fluorescent Probes Chemistry - A European Journal ·Sandra Ast, Tobias Fischer, Holger Müller, Wulfhard Mickler, Mathias Schwichtenberg, Knut Rurack, Hans‐Jürgen Holdt	2013	42
5	High Na+ and K+-induced fluorescence enhancement of a π-conjugated phenylaza-18-crown-6-triazol-substituted coumarin fluoroionophore Chemical Communications ·Sandra Ast, Holger Müller, Roman Flehr, Tillmann Klamroth, Bernd Walz, Hans‐Jürgen Holdt	2011	39
6	Reversing the Triazole Topology in a Cyclam‐Triazole‐Dye Ligand Gives a 10‐Fold Brighter Signal Response to Zn2+ in Aqueous Solution European Journal of Inorganic Chemistry ·Sandra Ast, Peter J. Rutledge, Matthew H. Todd	2012	38
7	Time-resolved and temperature tuneable measurements of fluorescent intensity using a smartphone fluorimeter The Analyst ·Md Arafat Hossain, John Canning, Zhikang Yu, Sandra Ast, Peter J. Rutledge, Abbas Jamalipour, Maxwell J. Crossley +1 other	2017	31
8	Progress toward the Total Synthesis of Psymberin/Irciniastatin A The Journal of Organic Chemistry ·Lauren E. Brown, Yakira R. Landaverry, Kristin A. Milinkevich, Sandra Ast, Joseph S. Carlson, Allen G. Oliver, Joseph P. Konopelski +1 other	2009	27
9	Fluorescence lifetime-based sensing of sodium by an optode Chemical Communications ·Thomas Schwarze, Holger Müller, Sandra Ast, Dörte Steinbrück, Sascha Eidner, Felix Geißler, Michael U. Kumke, Hans‐Jürgen Holdt	2014	27
10	Early warning smartphone diagnostics for water security and analysis using real-time pH mapping Photonic Sensors ·Md Arafat Hossain, John Canning, Sandra Ast, Peter J. Rutledge, Abbas Jamalipour	2015	27
11	Development of a lateral flow test for rapid pyrethroid detection using antibody-gated indicator-releasing hybrid materials The Analyst ·Elena Costa, Estela Climent, Sandra Ast, Michael G. Weller, John Canning, Knut Rurack	2020	23
12	Synthesis and Evaluation of 1,8‐Disubstituted‐Cyclam/Naphthalimide Conjugates as Probes for Metal Ions ChemistryOpen ·Sandra Ast, Mingfeng Yu, Roman Flehr, Andrew J. Counsell, Peter Turner, Patrick Crisologo, Matthew H. Todd, Peter J. Rutledge +1 other	2016	18
13	pH-Responsive quantum dots (RQDs) that combine a fluorescent nanoparticle with a pH-sensitive dye Physical Chemistry Chemical Physics ·Sandra Ast, Peter J. Rutledge, Matthew H. Todd	2014	16
14	Incorporating a Piperidinyl Group in the Fluorophore Extends the Fluorescence Lifetime of Click-Derived Cyclam-Naphthalimide Conjugates PLoS ONE ·Mingfeng Yu, Sandra Ast, Qun Yu, Anthony T. S. Lo, Roman Flehr, Matthew H. Todd, Peter J. Rutledge	2014	11
15	Using Click Chemistry to Tune the Properties and the Fluorescence Response Mechanism of Structurally Similar Probes for Metal Ions European Journal of Inorganic Chemistry ·Sandra Ast, Stefanie Kuke, Peter J. Rutledge, Matthew H. Todd	2014	11
16	Bend and twist intramolecular charge transfer and emission for selective metal ion sensing Optical Materials Express ·John Canning, Sandra Ast, Md Arafat Hossain, Hazel Chan, Peter J. Rutledge, Abbas Jamalipour	2015	9
17	A smartphone fluorometer – the lab-in-a-phone Advanced Photonics ·Md Arafat Hossain, John Canning, Sandra Ast, Teh Li Yen, Peter J. Rutledge, Abbas Jamalipour	2014	4
18	The properties and performance of a pH-responsive functionalised nanoparticle Faraday Discussions ·Sandra Ast, Peter J. Rutledge, Matthew H. Todd	2014	4
19	Centralised and portable “network forensics” using smartphone-based diagnostics: Case study — The mapping of tap water pH across Sydney, Australia IEEE Photonics Conference ·Md Arafat Hossain, John Canning, Sandra Ast, Peter J. Rutledge, Robert Webster, Abbas Jamalipour	2014	4
20	Absorption and fluorescence spectroscopy on a smartphone Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE ·Md Arafat Hossain, John Canning, Kevin Cook, Sandra Ast, Peter J. Rutledge, Abbas Jamalipour	2015	4

About Sandra Ast

Sandra Ast is a scholar working on Bioengineering, Spectroscopy, Biomedical Engineering, Materials Chemistry and Water Science and Technology, having authored 23 papers that have together received 591 indexed citations. Recurring topics across this work include Molecular Sensors and Ion Detection (10 papers), Analytical Chemistry and Sensors (9 papers), Biosensors and Analytical Detection (4 papers), Optical Imaging and Spectroscopy Techniques (2 papers), Luminescence and Fluorescent Materials (2 papers), Water Quality Monitoring Technologies (2 papers), Quantum Dots Synthesis And Properties (2 papers) and Analytical chemistry methods development (1 paper). The work is most often cited by research in Bioengineering (90 citations), Spectroscopy (162 citations), Biophysics (31 citations), Analytical Chemistry (46 citations) and Biomedical Engineering (134 citations). Sandra Ast has collaborated with scholars based in Australia, Germany and Russia. Frequent co-authors include Peter J. Rutledge, John Canning, Abbas Jamalipour, Md Arafat Hossain, Matthew H. Todd, Holger Müller, Hans‐Jürgen Holdt, Kevin Cook, Knut Rurack and Thomas Schwarze. Their work appears in journals such as European Journal of Inorganic Chemistry, Chemical Communications, Chemistry - A European Journal, The Analyst and Physical Chemistry Chemical Physics.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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