Peter A Willis
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Explore the profile of Peter A Willis including associated specialties, affiliations and a list of published articles.
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Articles
33
Citations
162
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Recent Articles
1.
Drevinskas T, Berg A, Noell A, Ferreira Santos M, Mora M, Willis P
Anal Chem
. 2024 Dec;
96(52):20343-20347.
PMID: 39694470
We report on a fused deposition modeling 3D-printable rotary valve fabricated from high-grade plastics such as polyether ether ketone or lower-grade plastics like polylactic acid. The valve weighs less than...
2.
Kurfman E, Mora M, Willis P, Lunte S
Electrophoresis
. 2024 Jun;
45(19-20):1684-1691.
PMID: 38924581
The search for chemical indicators of life is a fundamental component of potential future spaceflight missions to ocean worlds. Capillary electrophoresis (CE) is a useful separation method for the determination...
3.
Stoker C, Glass B, Stucky T, Dave A, Kobayashi L, Quinn R, et al.
Astrobiology
. 2023 Oct;
23(12):1284-1302.
PMID: 37856168
We report on a field demonstration of a rover-based drilling mission to search for biomolecular evidence of life in the arid core of the Atacama Desert, Chile. The KREX2 rover...
4.
Drevinskas T, Mora M, Ferreira Santos M, Noell A, Willis P
Anal Chem
. 2023 Jun;
95(27):10249-10256.
PMID: 37351615
We report here the first fully automated capillary electrophoresis (CE) system that can be operated underwater. The system performs sample acquisition and analysis by coupling CE to contactless conductivity detection....
5.
Drevinskas T, Noell A, Kehl F, Zamuruyev K, Ferreira Santos M, Mora M, et al.
Electrophoresis
. 2023 Mar;
44(13-14):1047-1056.
PMID: 36966381
Capillary electrophoresis (CE) holds great promise as an in situ analytical technique for a variety of applications. However, typical instrumentation operates with open reservoirs (e.g., vials) to accommodate reagents and...
6.
Ferreira Santos M, Zamuruyev K, Mora M, Noell A, Willis P
Electrophoresis
. 2023 Jan;
44(9-10):784-792.
PMID: 36640139
Sample injection is a critical step in a capillary electrophoresis (CE) analysis. Electrokinetic injection is the simplest approach and is often selected for implementation in portable CE instruments. However, in...
7.
Kok M, Mora M, Noell A, Parker C, Willis P
Anal Chem
. 2022 Sep;
94(37):12807-12814.
PMID: 36066097
Fatty acids are a well-established class of compounds targeted as biosignatures for future missions to look for evidence of life on ocean worlds such as Europa and Enceladus. In order...
8.
Mora M, Kok M, Noell A, Willis P
Astrobiology
. 2022 Aug;
22(8):914-925.
PMID: 35913998
Capillary electrophoresis (CE) is a promising liquid-based technique for chemical analysis on ocean worlds that allows the detection of a wide range of organic molecules relevant to the search for...
9.
Cretu V, Kehl F, Metz B, Willis P
HardwareX
. 2022 May;
10:e00233.
PMID: 35607697
An open-source, low noise, low cost, and tunable transimpedance amplifier is presented. The compact circuit board requires few parts and costs less than $65 USD. The transimpedance amplifier is intended...
10.
Kehl F, Cretu V, Willis P
HardwareX
. 2022 May;
10:e00240.
PMID: 35607676
This article describes the development of a compact, relatively low-cost, high compliance voltage laser driver that can provide the constant optical laser output required for a range of applications. The...