1
|
Chao YT, Prabhu GRD, Yu KC, Syu JY, Urban PL. BioChemPen for a Rapid Analysis of Compounds Supported on Solid Surfaces. ACS Sens 2021; 6:3744-3752. [PMID: 34553592 DOI: 10.1021/acssensors.1c01540] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We present BioChemPen, a portable wireless biosensor device for rapid analysis of substances adsorbed on solid surfaces. The device takes advantage of (bio)luminescent reactions taking place in a hydrogel matrix. In a typical embodiment, the active element of this device is a hydrogel disk (chemotransducer) containing enzyme(s), electrolyte solution, and all of the necessary substrates. When the hydrogel is exposed to a solid sample surface containing the target analyte, light is produced. A photoresistor (phototransducer), placed in close proximity to the hydrogel disk, detects the light. The operation of the BioChemPen is enabled by a MicroPython PyBoard microcontroller board and other low-cost electronic modules. The obtained results are immediately uploaded to the Internet cloud. In one application, we demonstrate an analysis of hypochlorite-containing cleaning agents present on the surfaces of daily use objects by an assay based on hydrogel embedded with luminol and hydrogen peroxide. In another application, we use hydrogel embedded with luciferin, luciferase, and pyruvate kinase to detect adenosine triphosphate (ATP), and adenosine diphosphate (ADP), and link the ATP content with meat freshness. Lastly, we demonstrate the detection of organophosphate pesticides present on vegetables with the hydrogel containing acetylcholinesterase, choline oxidase, and horseradish peroxidase. The limits of detection for sodium hypochlorite, ATP, ADP, and chlorpyrifos-methyl (a pesticide) were 7.95 × 10-11, 2.73 × 10-13, 2.35 × 10-12, and 2.59 × 10-10 mol mm-2, respectively.
Collapse
Affiliation(s)
- Yu-Ting Chao
- Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
| | - Gurpur Rakesh D. Prabhu
- Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
| | - Kai-Chiang Yu
- Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
| | - Jia-You Syu
- Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
| | - Pawel L. Urban
- Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
- Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
| |
Collapse
|
2
|
Hsu CY, Prabhu GRD, Urban PL. Telechemistry 2.0: Remote monitoring of fluorescent chemical reactions. HARDWAREX 2021; 10:e00244. [PMID: 35607687 PMCID: PMC9123467 DOI: 10.1016/j.ohx.2021.e00244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 09/16/2021] [Accepted: 10/25/2021] [Indexed: 06/15/2023]
Abstract
Implementation of the Internet-of-Things in chemistry research has the potential to improve research methodologies. Here, we describe a cloud-integrated real-time laboratory monitoring system for: (i) monitoring reactions involving fluorescent chemical species, and (ii) monitoring laboratory environment for safety purpose. A probe-type fluorescence detection system has been constructed to monitor reactions that involve fluorescent molecules. This device incorporates an in-house-built 3D-printed probe, two optical fibers, a light-emitting diode, a photoresistor, and a microcontroller board (MCB). The MCB relays experimental data to a single-board computer (SBC), which then uploads the data to a cloud-based platform (ThingSpeak) for data storage and visualization. The SBC is also connected to auxiliary sensors to measure relative alcohol vapor concentration, temperature, and humidity at different locations in the laboratory. The device has been validated and tested for its performance by monitoring a fluorescent chemical reaction (synthesis of fluorescent gold nanoclusters) for a period of 12 h.
Collapse
Affiliation(s)
- Chun-Yao Hsu
- Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Rd., Hsinchu 30013, Taiwan
| | - Gurpur Rakesh D. Prabhu
- Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Rd., Hsinchu 30013, Taiwan
| | - Pawel L. Urban
- Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Rd., Hsinchu 30013, Taiwan
- Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, 101, Section 2, Kuang-Fu Rd., Hsinchu 30013, Taiwan
| |
Collapse
|
3
|
Raju CM, Yu KC, Shih CP, Elpa DP, Prabhu GRD, Urban PL. Catalytic Oxygenation-Mediated Extraction as a Facile and Green Way to Analyze Volatile Solutes. Anal Chem 2021; 93:8923-8930. [PMID: 34143609 DOI: 10.1021/acs.analchem.1c01354] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Sparging-based methods have long been used to liberate volatile organic compounds (VOCs) from liquid sample matrices prior to analysis. In these methods, a carrier gas is delivered from an external source. Here, we demonstrate "catalytic oxygenation-mediated extraction" (COME), which relies on biocatalytic production of oxygen occurring directly in the sample matrix. The newly formed oxygen (micro)bubbles extract the dissolved VOCs. The gaseous extract is immediately transferred to a separation or detection system for analysis. To start COME, dilute hydrogen peroxide is injected into the sample supplemented with catalase enzyme. The entire procedure is performed automatically-after pressing a "start" button, making a clapping sound, or triggering from a smartphone. The pump, valves, and detection system are controlled by a microcontroller board. For quality control and safety purposes, the reaction chamber is monitored by a camera linked to a single-board computer, which follows the enzymatic reaction progress by analyzing images of foam in real time. The data are instantly uploaded to the internet cloud for retrieval. The COME apparatus has been coupled on-line with the gas chromatography electron ionization mass spectrometry (MS) system, atmospheric pressure chemical ionization (APCI) MS system, and APCI ion-mobility spectrometry system. The three hyphenated variants have been tested in analyses of complex matrices (e.g., fruit-based drinks, whiskey, urine, and stored wastewater). In addition to the use of catalase, COME variants using crude potato pulp or manganese(IV) dioxide have been demonstrated. The technique is inexpensive, fast, reliable, and green: it uses low-toxicity chemicals and emits oxygen.
Collapse
Affiliation(s)
- Chamarthi Maheswar Raju
- Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Rd., Hsinchu 30013, Taiwan
| | - Kai-Chiang Yu
- Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Rd., Hsinchu 30013, Taiwan
| | - Chun-Pei Shih
- Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Rd., Hsinchu 30013, Taiwan
| | - Decibel P Elpa
- Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Rd., Hsinchu 30013, Taiwan.,Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
| | - Gurpur Rakesh D Prabhu
- Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Rd., Hsinchu 30013, Taiwan
| | - Pawel L Urban
- Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Rd., Hsinchu 30013, Taiwan.,Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, 101, Section 2, Kuang-Fu Rd., Hsinchu 30013, Taiwan
| |
Collapse
|
4
|
Kim S, Bucholtz EC, Briney K, Cornell AP, Cuadros J, Fulfer KD, Gupta T, Hepler-Smith E, Johnston DH, Lang AS, Larsen D, Li Y, McEwen LR, Morsch LA, Muzyka JL, Belford RE. Teaching Cheminformatics through a Collaborative Intercollegiate Online Chemistry Course (OLCC). JOURNAL OF CHEMICAL EDUCATION 2021; 98:416-425. [PMID: 33762777 PMCID: PMC7976600 DOI: 10.1021/acs.jchemed.0c01035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 10/21/2020] [Indexed: 06/12/2023]
Abstract
While cheminformatics skills necessary for dealing with an ever-increasing amount of chemical information are considered important for students pursuing STEM careers in the age of big data, many schools do not offer a cheminformatics course or alternative training opportunities. This paper presents the Cheminformatics Online Chemistry Course (OLCC), which is organized and run by the Committee on Computers in Chemical Education (CCCE) of the American Chemical Society (ACS)'s Division of Chemical Education (CHED). The Cheminformatics OLCC is a highly collaborative teaching project involving instructors at multiple schools who teamed up with external chemical information experts recruited across sectors, including government and industry. From 2015 to 2019, three Cheminformatics OLCCs were offered. In each program, the instructors at participating schools would meet face-to-face with the students of a class, while external content experts engaged through online discussions across campuses with both the instructors and students. All the material created in the course has been made available at the open education repositories of LibreTexts and CCCE Web sites for other institutions to adapt to their future needs.
Collapse
Affiliation(s)
- Sunghwan Kim
- National
Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland 20894, United States
| | - Ehren C. Bucholtz
- Department
of Basic Sciences, University of Health
Sciences and Pharmacy in St. Louis, St. Louis, Missouri 63110, United States
| | - Kristin Briney
- Sherman Fairchild
Library, California Institute of Technology, Pasadena, California 91125, United States
| | - Andrew P. Cornell
- Department
of Chemistry, University of Arkansas at
Little Rock, Little
Rock, Arkansas 72022, United States
| | - Jordi Cuadros
- Department
of Quantitative Methods, IQS Universitat
Ramon Llull, Barcelona, 08017, Spain
| | - Kristen D. Fulfer
- Department
of Chemistry, Centre College, Danville, Kentucky 40422, United States
| | - Tanya Gupta
- Department
of Chemistry & Biochemistry, South Dakota
State University, Brookings, South Dakota 57007, United States
| | - Evan Hepler-Smith
- Department
of History, Duke University, Durham, North Carolina 27708, United States
| | - Dean H. Johnston
- Department
of Chemistry, Otterbein University, Westerville, Ohio 43081, United States
| | - Andrew S.I.D. Lang
- Department
of Computing & Mathematics, Oral Roberts
University, Tulsa, Oklahoma 74171, United States
| | - Delmar Larsen
- Department
of Chemistry, University of California-Davis, Davis, California 95616, United States
| | - Ye Li
- MIT
Libraries, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Leah R. McEwen
- Physical
Sciences Library, Cornell University, Ithaca, New York 14853, United States
| | - Layne A. Morsch
- Department
of Chemistry, University of Illinois Springfield, Springfield, Illinois 62703, United States
| | - Jennifer L. Muzyka
- Department
of Chemistry, Centre College, Danville, Kentucky 40422, United States
| | - Robert E. Belford
- Department
of Chemistry, University of Arkansas at
Little Rock, Little
Rock, Arkansas 72022, United States
| |
Collapse
|
5
|
Abstract
With the rapid development of high technology, chemical science is not as it used to be a century ago. Many chemists acquire and utilize skills that are well beyond the traditional definition of chemistry. The digital age has transformed chemistry laboratories. One aspect of this transformation is the progressing implementation of electronics and computer science in chemistry research. In the past decade, numerous chemistry-oriented studies have benefited from the implementation of electronic modules, including microcontroller boards (MCBs), single-board computers (SBCs), professional grade control and data acquisition systems, as well as field-programmable gate arrays (FPGAs). In particular, MCBs and SBCs provide good value for money. The application areas for electronic modules in chemistry research include construction of simple detection systems based on spectrophotometry and spectrofluorometry principles, customizing laboratory devices for automation of common laboratory practices, control of reaction systems (batch- and flow-based), extraction systems, chromatographic and electrophoretic systems, microfluidic systems (classical and nonclassical), custom-built polymerase chain reaction devices, gas-phase analyte detection systems, chemical robots and drones, construction of FPGA-based imaging systems, and the Internet-of-Chemical-Things. The technology is easy to handle, and many chemists have managed to train themselves in its implementation. The only major obstacle in its implementation is probably one's imagination.
Collapse
Affiliation(s)
- Gurpur Rakesh D Prabhu
- Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu, 30013, Taiwan.,Department of Applied Chemistry, National Chiao Tung University, 1001 University Road, Hsinchu, 300, Taiwan
| | - Pawel L Urban
- Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu, 30013, Taiwan.,Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu, 30013, Taiwan
| |
Collapse
|
6
|
Facilitating chemical and biochemical experiments with electronic microcontrollers and single-board computers. Nat Protoc 2020; 15:925-990. [PMID: 31996842 DOI: 10.1038/s41596-019-0272-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Accepted: 11/18/2019] [Indexed: 11/08/2022]
Abstract
Since the advent of modern science, researchers have had to rely on their technical skills or the support of specialized workshops to construct analytical instruments. The notion of the 'fourth industrial revolution' promotes construction of customized systems by individuals using widely available, inexpensive electronic modules. This protocol shows how chemists and biochemists can utilize a broad range of microcontroller boards (MCBs) and single-board computers (SBCs) to improve experimental designs and address scientific questions. We provide seven example procedures for laboratory routines that can be expedited by implementing this technology: (i) injection of microliter-volume liquid plugs into microscale capillaries for low-volume assays; (ii) transfer of liquid extract to a mass spectrometer; (iii) liquid-gas extraction of volatile organic compounds (called 'fizzy extraction'), followed by mass spectrometric detection; (iv) monitoring of experimental conditions over the Internet cloud in real time; (v) transfer of analytes to a mass spectrometer via a liquid microjunction interface, data acquisition, and data deposition into the Internet cloud; (vi) feedback control of a biochemical reaction; and (vii) optimization of sample flow rate in direct-infusion mass spectrometry. The protocol constitutes a primer for chemists and biochemists who would like to take advantage of MCBs and SBCs in daily experimentation. It is assumed that the readers have not attended any courses related to electronics or programming. Using the instructions provided in this protocol and the cited material, readers should be able to assemble simple systems to facilitate various procedures performed in chemical and biochemical laboratories in 1-2 d.
Collapse
|
7
|
Fitzpatrick DE, O'Brien M, Ley SV. A tutored discourse on microcontrollers, single board computers and their applications to monitor and control chemical reactions. REACT CHEM ENG 2020. [DOI: 10.1039/c9re00407f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This Tutored Discourse constitutes a preliminary exposure on how synthesis chemists can engage positively with inexpensive, low-power microcontrollers to aid control, monitoring and optimisation of chemical reactions.
Collapse
Affiliation(s)
| | - Matthew O'Brien
- Department of Chemistry
- Keele University
- Staffordshire ST5 5BG
- UK
| | - Steven V. Ley
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW
- UK
| |
Collapse
|
8
|
Prabhu GRD, Witek HA, Urban PL. Telechemistry: monitoring chemical reactionsviathe cloud using the Particle Photon Wi-Fi module. REACT CHEM ENG 2019. [DOI: 10.1039/c9re00043g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A popular electronic module and the associated Internet-of-Things tools provide chemists with more control over long-term experimental procedures and enhance lab work safety.
Collapse
Affiliation(s)
- Gurpur Rakesh D. Prabhu
- Department of Applied Chemistry
- National Chiao Tung University
- Hsinchu
- Taiwan
- Department of Chemistry
| | - Henryk A. Witek
- Department of Applied Chemistry
- National Chiao Tung University
- Hsinchu
- Taiwan
- Center for Emergent Functional Matter Science
| | - Pawel L. Urban
- Department of Chemistry
- National Tsing Hua University
- Hsinchu
- Taiwan
- Frontier Research Center on Fundamental and Applied Sciences of Matters
| |
Collapse
|
9
|
|
10
|
Thompson S, Kilbourn MR, Scott PJH. Radiochemistry, PET Imaging, and the Internet of Chemical Things. ACS CENTRAL SCIENCE 2016; 2:497-505. [PMID: 27610410 PMCID: PMC4999973 DOI: 10.1021/acscentsci.6b00178] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Indexed: 06/06/2023]
Abstract
The Internet of Chemical Things (IoCT), a growing network of computers, mobile devices, online resources, software suites, laboratory equipment, synthesis apparatus, analytical devices, and a host of other machines, all interconnected to users, manufacturers, and others through the infrastructure of the Internet, is changing how we do chemistry. While in its infancy across many chemistry laboratories and departments, it became apparent when considering our own work synthesizing radiopharmaceuticals for positron emission tomography (PET) that a more mature incarnation of the IoCT already exists. How does the IoCT impact our lives today, and what does it hold for the smart (radio)chemical laboratories of the future?
Collapse
Affiliation(s)
- Stephen Thompson
- Department of Radiology and The Interdepartmental Program in
Medicinal Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Michael R. Kilbourn
- Department of Radiology and The Interdepartmental Program in
Medicinal Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Peter J. H. Scott
- Department of Radiology and The Interdepartmental Program in
Medicinal Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| |
Collapse
|
11
|
Hicks MG, Seeberger PH. The Beilstein Journal of Organic Chemistry and the changing face of scientific publishing. Beilstein J Org Chem 2015; 11:2242-4. [PMID: 26664646 PMCID: PMC4661016 DOI: 10.3762/bjoc.11.242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 11/11/2015] [Indexed: 11/29/2022] Open
Affiliation(s)
- Martin G Hicks
- Beilstein-Institut zur Förderung der Chemischen Wissenschaften, Trakehner Straße 7–9, 60487 Frankfurt am Main, Germany
| | - Peter H Seeberger
- Max-Planck-Institut für Kolloid- und Grenzflächenforschung, Am Mühlenberg 1, 14476 Potsdam, Germany
| |
Collapse
|