Eli Espinoza

Charge transfer, Photochemistry, Energetics, Chromophore, Copper chemistry, Sugar chemistry, Organic Chemistry, Self-immolative linkers, Inorganic photochemistry, Ultrafast Spectroscopy

Works (52)

Updated: July 20th, 2023 21:17

2023 journal article

Employing Long-Range Inductive Effects to Modulate Metal-to- Ligand Charge Transfer Photoluminescence in Homoleptic Cu(I) Complexes

INORGANIC CHEMISTRY, 62(7), 3248–3259.

By: M. Rosko n, E. Espinoza n, S. Arteta n, S. Kromer n, J. Wheeler n & F. Castellano n

topics (OpenAlex): Porphyrin and Phthalocyanine Chemistry; Organic Light-Emitting Diodes Research; Metal complexes synthesis and properties
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: February 8, 2023

2022 journal article

A self-immolative linker that releases thiols detects penicillin amidase and nitroreductase with high sensitivity via absorption spectroscopy

Chemical Communications.

By: E. Espinoza*, J. Røise*, M. He*, I. Li*, A. Agatep*, P. Udenyi*, H. Han*, N. Jackson* ...

MeSH headings : Molecular Structure; Nitroreductases / analysis; Nitroreductases / metabolism; Penicillin Amidase / analysis; Penicillin Amidase / metabolism; Spectrometry, Fluorescence; Sulfhydryl Compounds / chemistry
topics (OpenAlex): Luminescence and Fluorescent Materials; Dendrimers and Hyperbranched Polymers; Advanced biosensing and bioanalysis techniques
TL;DR: It is demonstrated that thiocarbonate self-immolative linkers can be used to detect the enzymes penicillin G amidase (PGA) and nitroreductase (NTR) with high sensitivity using absorption spectroscopy. (via Semantic Scholar)
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6. Clean Water and Sanitation (OpenAlex)
Source: ORCID
Added: February 17, 2022

2022 journal article

Acid-Sensitive Surfactants Enhance the Delivery of Nucleic Acids

Molecular Pharmaceutics, 12.

By: J. Røise*, H. Han*, J. Li*, D. Kerr*, C. Taing*, K. Behrouzi*, M. He*, E. Ruan* ...

author keywords: drug delivery; endosomal disruption; nucleic acids; surfactants; transfection
MeSH headings : Drug Delivery Systems / methods; Endosomes / drug effects; Hemolysis / drug effects; Humans; Hydrogen-Ion Concentration; Nucleic Acids / administration & dosage; RNA, Messenger / administration & dosage; RNA, Small Interfering / administration & dosage; Structure-Activity Relationship; Surface-Active Agents / administration & dosage; Surface-Active Agents / chemistry; Surface-Active Agents / therapeutic use
topics (OpenAlex): RNA Interference and Gene Delivery; Advanced biosensing and bioanalysis techniques; Lipid Membrane Structure and Behavior
TL;DR: Three generations of caged surfactants are synthesized and it is demonstrated that they can enhance the ability of cationic lipids to deliver mRNA into primary cells and can deliver siRNA into cells when modified with the RNA-binding dye thiazole orange. (via Semantic Scholar)
Source: ORCID
Added: January 16, 2022

2022 journal article

Charge transfer vs. proton transfer in the excited-state dynamics of biomimetic pyranoflavylium cations

Journal of Photochemistry and Photobiology, 10, 100110.

By: E. Espinoza*, J. Clark*, C. Pacheco da Silva, J. Derr*, G. Thalmer de Medeiros Silva, M. Bilones, M. Morales*, F. Quina*, V. Vullev*

topics (OpenAlex): Photochemistry and Electron Transfer Studies; Plant and animal studies; Photosynthetic Processes and Mechanisms
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6. Clean Water and Sanitation (OpenAlex)
Sources: NC State University Libraries, NC State University Libraries
Added: November 23, 2022

2022 journal article

Photophysics and Electrochemistry of Biomimetic Pyranoflavyliums: What Can Bioinspiration from Red Wines Offer

Photochem, 2(1), 9–31.

By: E. Espinoza*, J. Clark*, M. Billones*, G. Medeiros Silva, C. Silva*, F. Quina*, V. Vullev*

topics (OpenAlex): TiO2 Photocatalysis and Solar Cells; Photoreceptor and optogenetics research; Photosynthetic Processes and Mechanisms
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7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: January 16, 2022

2021 journal article

Advances in Imaging Reactive Oxygen Species

Journal of Nuclear Medicine, 62(4), 457–461.

By: E. Espinoza*, J. Røise*, I. Li*, R. Das* & N. Murthy*

author keywords: animal imaging; molecular imaging; ROS; chromophores; imaging; radicals
MeSH headings : Humans; Molecular Imaging / methods; Reactive Oxygen Species / metabolism
topics (OpenAlex): Analytical Chemistry and Sensors; Nanoplatforms for cancer theranostics; Redox biology and oxidative stress
TL;DR: This review provides a concise overview of modern advances in the field of ROS imaging and shows that using nanoparticles, rather than individual small organic fluorophores, for ROS imaging can further the understanding of ROS. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries, ORCID
Added: January 16, 2022

2021 journal article

Correction: Multifaceted aspects of charge transfer

Physical Chemistry Chemical Physics.

topics (OpenAlex): Electrochemical sensors and biosensors; Conducting polymers and applications; Various Chemistry Research Topics
TL;DR: Correction for 'Multifaceted aspects of charge transfer' by James B. Derr et al., Phys. (via Semantic Scholar)
Source: ORCID
Added: January 16, 2022

2021 journal article

How does tautomerization affect the excited-state dynamics of an amino acid-derivatized corrole?

Photosynthesis Research, 148(1-2), 67–76.

author keywords: Porphyrinoids; Corroles; Tautomers; Hydrogen bonding; Kinetic isotope effect; Transient-absorption spectroscopy
MeSH headings : Amino Acids / chemistry; Biosynthetic Pathways; Energy Transfer / physiology; Hydrogen Bonding; Molecular Structure; Photochemical Processes; Porphyrins / chemistry
topics (OpenAlex): Porphyrin and Phthalocyanine Chemistry; Photochemistry and Electron Transfer Studies; Surface Chemistry and Catalysis
TL;DR: This work focuses on the excited-state dynamics of a corrole modified with l-phenylalanine, which can strongly affect photoinduced processes with comparable or shorter timescales, considering the 100-meV energy differences between the tautomers in the excited state. (via Semantic Scholar)
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7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: January 17, 2022

2021 journal article

Making Nitronaphthalene Fluoresce

The Journal of Physical Chemistry Letters, 10, 10295–10303.

topics (OpenAlex): Photochemistry and Electron Transfer Studies; Luminescence and Fluorescent Materials; Organic Light-Emitting Diodes Research
TL;DR: Up to a 7000-fold increase in the singlet-excited-state lifetime of 1-nitronaphthalene upon attaching an amine or an N-amide to the ring lacking the nitro group is reported. (via Semantic Scholar)
Source: ORCID
Added: January 16, 2022

2021 journal article

On the Search of a Silver Bullet for the Preparation of Bioinspired Molecular Electrets with Propensity to Transfer Holes at High Potentials

Biomolecules, 11(3), 429.

author keywords: Purdie-Irvine alkylation; etherification; molecular electrets; dipoles
MeSH headings : Alkylation; Biomimetic Materials / chemical synthesis; Biomimetic Materials / chemistry; Ether / chemistry; Heating; Microwaves; Oxides / chemistry; Silver Compounds / chemistry; ortho-Aminobenzoates / chemistry
topics (OpenAlex): Molecular Junctions and Nanostructures; Electrochemical Analysis and Applications; Conducting polymers and applications
TL;DR: The high yields of Purdie-Irvine alkylation and the selectivity of the Williamson etherification provide important guidelines for synthesizing building blocks for bioinspired molecular electrets and a wide range of other complex ether conjugates. (via Semantic Scholar)
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7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: January 16, 2022

2021 journal article

Role of intramolecular hydrogen bonds in promoting electron flow through amino acid and oligopeptide conjugates

Proceedings of the National Academy of Sciences, 118(11).

author keywords: charge transfer; hydrogen bonding; corrole; folding; perylene diimide
MeSH headings : Amino Acids / chemistry; Circular Dichroism; Electron Transport; Electrons; Hydrogen Bonding; Imides / chemistry; Kinetics; Magnetic Resonance Spectroscopy; Oligopeptides / chemistry; Perylene / analogs & derivatives; Perylene / chemistry; Porphyrins / chemistry; Protein Folding; Thermodynamics
topics (OpenAlex): Molecular Sensors and Ion Detection; Photoreceptor and optogenetics research; Photochromic and Fluorescence Chemistry
TL;DR: It is shown that intramolecular hydrogen bonding brings the donor and the acceptor into proximity in a “scorpion-shaped” molecular architecture, thereby accounting for the unusually high ET and HT rates. (via Semantic Scholar)
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UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: January 16, 2022

2020 journal article

Biomimetic and bioinspired molecular electrets. How to make them and why does the established peptide chemistry not always work?

Pure and Applied Chemistry, 92(2), 275–299.

By: K. Skonieczny*, E. Espinoza*, J. Derr*, M. Morales*, J. Clinton*, B. Xia*, V. Vullev*

author keywords: bioinspired; biomimetic; electrets; NICE-2018; peptide synthesis; selective reduction
topics (OpenAlex): Molecular Junctions and Nanostructures; Chemical Synthesis and Analysis; Advanced biosensing and bioanalysis techniques
TL;DR: Addressing challenges to bioinspired molecular electrets based on anthranilamides can overcome the limitations of their biological and biomimetic counterparts and provide access to organic electronics and energy conversion. (via Semantic Scholar)
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7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: January 18, 2022

2020 journal article

Chromophores inspired by the colors of fruit, flowers and wine

Pure and Applied Chemistry, 92(2), 255–263.

By: C. Silva*, G. Silva*, T. Costa*, V. Carneiro*, F. Siddique, A. Aquino, A. Freitas*, J. Clark* ...

author keywords: anthocyanins; fluorescence; NICE-2018; phosphorescence; pyranoanthocyanins; pyranoflavylium cations
topics (OpenAlex): Radical Photochemical Reactions; Photochemistry and Electron Transfer Studies; Oxidative Organic Chemistry Reactions
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: January 18, 2022

2020 journal article

Deciphering the unusual fluorescence in weakly coupled bis-nitro-pyrrolo[3,2-b]pyrroles

Communications Chemistry.

topics (OpenAlex): Porphyrin and Phthalocyanine Chemistry; Luminescence and Fluorescent Materials; Photochemistry and Electron Transfer Studies
Source: ORCID
Added: January 16, 2022

2020 speech

Extending the Lifetime of Nitrated Poliaromatic Hydrocarbons for Photoinduced Hole Transfer Systems

Espinoza, E. (2020, November). Presented at the Workshop on Renewable Energy Sources and Nanotechnology, (Virtual).

By: E. Espinoza

Event: Workshop on Renewable Energy Sources and Nanotechnology at (Virtual)

Source: NC State University Libraries
Added: February 5, 2022

2020 journal article

Multifaceted aspects of charge transfer

Physical Chemistry Chemical Physics, 22(38), 21583–21629.

topics (OpenAlex): Molecular Junctions and Nanostructures; Electrochemical Analysis and Applications; Photoreceptor and optogenetics research
TL;DR: The fundamental concepts of charge transfer are reviewed, and its core role in a broad range of unrelated fields, such as medicine, environmental science, catalysis, electronics and photonics, are outlined. (via Semantic Scholar)
Source: ORCID
Added: January 16, 2022

2020 journal article

Solvent-induced selectivity of Williamson etherification in the pursuit of amides resistant against oxidative degradation

RSC Advances.

topics (OpenAlex): Molecular Junctions and Nanostructures; Electrochemical Analysis and Applications; Oxidative Organic Chemistry Reactions; Chemical Synthesis and Analysis; Chemical Synthesis and Reactions
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UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: ORCID
Added: January 16, 2022

2019 journal article

Is it common for charge recombination to be faster than charge separation?

International Journal of Chemical Kinetics, 51(9), 657–668.

By: E. Espinoza*, D. Bao*, M. Krzeszewski*, D. Gryko* & V. Vullev*

author keywords: charge recombination; charge separation; charge transfer; electrets; electronic coupling; singlet-triplet mixing
topics (OpenAlex): Photochemistry and Electron Transfer Studies; Electrochemical Analysis and Applications; Molecular Junctions and Nanostructures
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UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: January 16, 2022

2019 journal article

Practical Aspects of Cyclic Voltammetry: How to Estimate Reduction Potentials When Irreversibility Prevails

Journal of The Electrochemical Society, 166(5), H3175–H3187.

By: E. Espinoza*, J. Clark*, J. Soliman*, J. Derr*, M. Morales* & V. Vullev*

topics (OpenAlex): Electrochemical Analysis and Applications; Conducting polymers and applications; Analytical Chemistry and Sensors
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: January 17, 2022

2018 journal article

Bidirectional Solvatofluorochromism of a Pyrrolo[3,2-b]pyrrole–Diketopyrrolopyrrole Hybrid

The Journal of Physical Chemistry C, 122(25), 13424–13434.

By: H. Ryu*, M. Mayther*, J. Tamayo*, C. Azarias*, E. Espinoza*, M. Banasiewicz*, Ł. Łukasiewicz*, Y. Poronik* ...

topics (OpenAlex): Photochemistry and Electron Transfer Studies; Porphyrin and Phthalocyanine Chemistry; Luminescence and Fluorescent Materials
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: January 17, 2022

2018 speech

Bioinspired Design for Inducing Charge Transfer in Molecular Electrets

Espinoza, E. (2018, May). Presented at the California State University Los Angeles, Los Angeles, CA.

By: E. Espinoza

Source: NC State University Libraries
Added: February 5, 2022

2018 journal article

Cover Picture: Dipole Effects on Electron Transfer are Enormous (Angew. Chem. Int. Ed. 38/2018)

Angewandte Chemie International Edition, 57(38), 12179–12179.

topics (OpenAlex): Electrochemical sensors and biosensors; Photoreceptor and optogenetics research; Molecular Junctions and Nanostructures
Source: ORCID
Added: January 16, 2022

2018 conference paper

Design of Electron Deficient Chromophores for Charge Transfer Systems

Espinoza, E. (2018, August). Presented at the Electron Donor-Acceptor Interactions Gordon Research Conference, Newport, RI.

By: E. Espinoza

Source: NC State University Libraries
Added: February 5, 2022

2018 journal article

Dipole Effects on Electron Transfer are Enormous

Angewandte Chemie International Edition, 57(38), 12365–12369.

author keywords: charge transfer; dipoles; electron transfer; kinetics; Rehm-Weller equation
topics (OpenAlex): Molecular Junctions and Nanostructures; Photochemistry and Electron Transfer Studies; Spectroscopy and Quantum Chemical Studies
TL;DR: It is revealed that dipoles can substantially alter the ET driving force for low solvent polarity, which accounts for these unique trends. (via Semantic Scholar)
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UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: ORCID, Crossref, NC State University Libraries
Added: January 16, 2022

2018 journal article

Dipole Effects on Electron Transfer are Enormous

Angewandte Chemie, 130(38), 12545–12549.

topics (OpenAlex): Photochemistry and Electron Transfer Studies; Molecular Junctions and Nanostructures; Porphyrin and Phthalocyanine Chemistry
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: January 16, 2022

2018 speech

Dipole Modulation of Charge Transfer

Espinoza, E. (2018, June). Presented at the 19th Annual University of California Systemwide Bioengineering Symposium, Riverside, California.

By: E. Espinoza

Source: NC State University Libraries
Added: February 5, 2022

2018 speech

Dipole Modulation of Charge Transfer in Anthranilamides

Espinoza, E. (2018, February). Presented at the Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINESTAV-IPN), Unidad Merida, Merida, Yucatan., Mexico.

By: E. Espinoza

Source: NC State University Libraries
Added: February 5, 2022

2018 conference paper

Dipole Modulation of Charge Transfer in Anthranilamides

Espinoza, E. (2018, February). Presented at the Frontiers in Photochemistry Conference, Cancun, Mexico.

By: E. Espinoza

Source: NC State University Libraries
Added: February 5, 2022

2018 journal article

Dipole-induced effects on charge transfer and charge transport. Why do molecular electrets matter?

Canadian Journal of Chemistry, 96(9), 843–858.

author keywords: charge transfer; electron donors and acceptors; bioinspired; electric dipoles; electrets
topics (OpenAlex): Molecular Junctions and Nanostructures; Electrochemical Analysis and Applications; Electrochemical sensors and biosensors
Sources: Crossref, NC State University Libraries
Added: January 18, 2022

2018 journal article

How Do Amides Affect the Electronic Properties of Pyrene?

ACS Omega, 3(10), 12857–12867.

By: E. Espinoza*, J. Clark*, J. Derr*, D. Bao*, B. Georgieva*, F. Quina*, V. Vullev*

topics (OpenAlex): Molecular Junctions and Nanostructures; Photochemistry and Electron Transfer Studies; Electrochemical Analysis and Applications
TL;DR: Examination of the frontier orbitals of the pyrene derivatives and their components reveals the underlying reason for the observed amide effects on the electronic properties of this polycyclic aromatic hydrocarbon and points to key molecular-design strategies for electronic and energy-conversion systems. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: January 18, 2022

2018 speech

Photoinitiating Hole Transfer for Harvesting Energy From the Sun

Espinoza, E. (2018, December). Presented at the Workshop on Renewable Energy Sources and Nanotechnology, Belem, Brazil.

By: E. Espinoza

Source: NC State University Libraries
Added: February 5, 2022

2018 journal article

Titelbild: Dipole Effects on Electron Transfer are Enormous (Angew. Chem. 38/2018)

Angewandte Chemie, 130(38), 12357–12357.

topics (OpenAlex): Photochemistry and Electron Transfer Studies; Molecular Junctions and Nanostructures; Chemical Reactions and Mechanisms
Source: ORCID
Added: January 16, 2022

2017 journal article

Bioinspired Molecular Electrets: Bringing Proteomic Approaches to Charge-Transfer Systems

ECS Transactions, 77(11), 1517–1523.

By: E. Espinoza* & V. Vullev*

topics (OpenAlex): Molecular Junctions and Nanostructures; Electrochemical sensors and biosensors; Analytical Chemistry and Sensors
Sources: Crossref, NC State University Libraries
Added: January 18, 2022

2017 journal article

Bioinspired approach toward molecular electrets: synthetic proteome for materials

Pure and Applied Chemistry, 89(12), 1777–1797.

By: E. Espinoza*, J. Larsen-Clinton*, M. Krzeszewski*, N. Darabedian*, D. Gryko* & V. Vullev*

author keywords: anthranilamides; anthranilic acid; bioinspired; biomimetic; electric dipole; electron transfer; energy conversion; NICE-2016; organic electronics
topics (OpenAlex): Molecular Junctions and Nanostructures; Analytical Chemistry and Sensors; Electrochemical Analysis and Applications
TL;DR: An overview of the utility of local electric fields originating from molecular dipoles for directing CT processes and multifaceted bioinspired approach for the design of CT molecular systems provides unexplored paradigms for electronic and energy science and engineering. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: January 18, 2022

2017 journal article

Fluorinated aminoanthranilamides: non-native amino acids for bringing proteomic approaches to charge-transfer systems

Physical Chemistry Chemical Physics, 19(11), 7871–7876.

By: J. Larsen-Clinton*, E. Espinoza*, M. F. Mayther*, J. Clark*, C. Tao*, D. Bao*, C. Larino*, M. Wurch*, S. Lara*, V. Vullev*

MeSH headings : Amino Acids / chemistry; Halogenation; Magnetic Resonance Spectroscopy; Proteomics; Quantum Theory; Stereoisomerism; ortho-Aminobenzoates / chemistry
topics (OpenAlex): Electrochemical sensors and biosensors; Conducting polymers and applications; Molecular Junctions and Nanostructures
TL;DR: The design and development of fluorinated aminoanthranilamides, derivatives of non-native aromatic beta-amino acids, are described as building blocks for hole-transfer molecular electrets, setting a foundation for bringing principles of proteomics to designs of charge-transfer systems. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: January 17, 2022

2017 speech

Inducing Charge Transfer in Molecular Electrets

Espinoza, E. (2017, March). Presented at the Azusa Pacific University, Azusa, CA.

By: E. Espinoza

Source: NC State University Libraries
Added: February 5, 2022

2017 speech

Making Nitropyrene Fluoresce: Electron deficient sensitizers that are good electron acceptors

Espinoza, E. (2017, December). Presented at the Workshop on Renewable Energy Sources and Nanotechnology, Belem, Brazil.

By: E. Espinoza

Source: NC State University Libraries
Added: February 5, 2022

2017 conference paper

Making Nitropyrenes Fluoresce: Electron-Deficient Sensitizers for Bioinspired Charge Transfer Systems

Espinoza, E. (2017, July). Presented at the Photochemistry Gordon Conference, Lewiston, ME.

By: E. Espinoza

Source: NC State University Libraries
Added: February 5, 2022

2016 journal article

Gating That Suppresses Charge Recombination–The Role of Mono-N-Arylated Diketopyrrolopyrrole

Journal of the American Chemical Society, 138(39), 12826–12832.

By: A. Purc*, E. Espinoza*, R. Nazir*, J. Romero, K. Skonieczny*, A. Jeżewski*, J. Larsen*, D. Gryko*, V. Vullev*

topics (OpenAlex): Photochemistry and Electron Transfer Studies; Molecular Junctions and Nanostructures; Electron Spin Resonance Studies
TL;DR: The role of dynamic gating for impeding CR in a molecular rotor, comprising an electron donor and acceptor directly linked via a single bond is focused on, providing a unique example of synergy between torsional and vibronic modes and their drastic effects on charge-transfer dynamics. (via Semantic Scholar)
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UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: January 17, 2022

2016 journal article

How To Reach Intense Luminescence for Compounds Capable of Excited‐State Intramolecular Proton Transfer?

Chemistry – A European Journal, 22(22), 7485–7496.

By: K. Skonieczny*, J. Yoo*, J. Larsen*, E. Espinoza*, M. Barbasiewicz*, V. Vullev*, C. Lee*, D. Gryko*

author keywords: dyes/pigments; fluorescence; fused-ring systems; heterocycles; photochemistry
topics (OpenAlex): Photochemistry and Electron Transfer Studies; Radical Photochemical Reactions; Luminescence and Fluorescent Materials
TL;DR: Steady-state and time-resolved UV/Vis spectroscopy reveals that, upon photoexcitation, the prepared protic heteroaromatics undergo ESIPT, converting them efficiently into their excited-state keto tautomers, which have lifetimes ranging from about 5 to 10 ns. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: January 18, 2022

2016 conference paper

Inducing Charge Transfer in Molecular Electrets

Espinoza, E. (2016, October). Presented at the Nature Inspired Creativity Engineers: 3rd international conference on Bioinspired and Bio-based Chemistry and Materials, Nice, France.

By: E. Espinoza

Source: NC State University Libraries
Added: February 5, 2022

2016 conference paper

Modulating Charge Transfer at Nanomaterials Interfaces Using Molecular Electrets

Espinoza, E. (2016, July). Presented at the 5th International Conference from Nanoparticles and Nanomaterials to Nanodevices and Nanosystems (IC4N), Peloponnese, Greece.

By: E. Espinoza

Source: NC State University Libraries
Added: February 5, 2022

2016 journal article

Nitropyrene Photoprobes: Making Them, and What Are They Good for?

European Journal of Organic Chemistry, 2016(2), 343–356.

By: E. Espinoza*, B. Xia*, N. Darabedian*, J. Larsen*, V. Nuñez*, D. Bao*, J. Mac*, F. Botero* ...

author keywords: Sensitizers; Triplet sensitizer; Fluorecent probes; Electron acceptor; Nitration; Conformational dynamics
topics (OpenAlex): Luminescence and Fluorescent Materials; Photochromic and Fluorescence Chemistry; Molecular Sensors and Ion Detection
Sources: Crossref, NC State University Libraries
Added: January 17, 2022

2016 journal article

Nonplanar Butterfly-Shaped π-Expanded Pyrrolopyrroles

Chemistry - A European Journal, 22(46), 16478–16488.

author keywords: chromophores; computer chemistry; fluorescence; fused-ring systems; solvatochromism
topics (OpenAlex): Synthesis and Properties of Aromatic Compounds; Organic Electronics and Photovoltaics; Porphyrin and Phthalocyanine Chemistry
TL;DR: These studies suggest that, similar to 9,9'-bianthryl, the nonpolar locally excited state shows negligible solvatochromism, whereas the charge-transfer state is sensitive to solvent polarity. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: January 17, 2022

2016 journal article

What Makes Oxidized N-Acylanthranilamides Stable?

The Journal of Physical Chemistry Letters, 7(5), 758–764.

By: E. Espinoza*, J. Larsen* & V. Vullev*

MeSH headings : Electrochemical Techniques; Magnetic Resonance Spectroscopy; Mass Spectrometry; Models, Molecular; Oxidation-Reduction; ortho-Aminobenzoates / chemistry
topics (OpenAlex): Radical Photochemical Reactions; Insect and Pesticide Research; Synthesis and Biological Evaluation
TL;DR: Two requirements for attaining long-lived radical cations of N-acylated Aa derivatives are revealed: keeping the reduction potentials for oxidizing the Aa residues under about 1.4 V vs SCE and adding an electron-donating group para to the N-terminal amide of the aromatic ring, which prevents the electron spin density of the radical cation from extending over the C- terminal amide. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: January 18, 2022

2015 conference paper

Bifunctional Nitropyrene: Synthetic Challenges, Photophysics and Electrochemical Features

Espinoza, E. (2015, July). Presented at the Photochemistry Gordon Conference, Easton, MA.

By: E. Espinoza

Source: NC State University Libraries
Added: February 5, 2022

2015 journal article

Bioinspired molecular electrets: bottom-up approach to energy materials and applications

Journal of Photonics for Energy, 5(1), 055598.

By: J. Larsen*, E. Espinoza* & V. Vullev*

author keywords: dipole; photoinduced; charge transfer; ionization energy; solar; anthranilic
topics (OpenAlex): Molecular Junctions and Nanostructures; Conducting polymers and applications; Electrochemical sensors and biosensors
Sources: Crossref, NC State University Libraries
Added: January 18, 2022

2015 journal article

Building blocks for bioinspired electrets: molecular-level approach to materials for energy and electronics

Pure and Applied Chemistry, 87(8), 779–792.

By: J. Larsen*, E. Espinoza*, J. Hartman*, C. Lin*, M. Wurch*, P. Maheshwari*, R. Kaushal*, M. Marsella*, G. Beran*, V. Vullev*

author keywords: amino acids; biomimetic synthesis; dipole; electrets; electrochemistry; electronic structures; microwave synthesis; NICE-2014; photophysics; reduction potentials
topics (OpenAlex): Molecular Junctions and Nanostructures; Conducting polymers and applications; Electrochemical sensors and biosensors
Sources: Crossref, NC State University Libraries
Added: January 18, 2022

2015 journal article

Electrochemical Properties of Residues for Bioinspired Molecular Electrets

ECS Transactions, 66(23), 1–9.

By: E. Espinoza*, J. Larsen* & V. Vullev*

topics (OpenAlex): Electrochemical Analysis and Applications; Conducting polymers and applications; Molecular Junctions and Nanostructures
Sources: Crossref, NC State University Libraries
Added: January 18, 2022

2015 conference paper

Nitropyrene derivatives for bioinspired charge-transfer system

Espinoza, E. (2015, August). Presented at the 250th American Chemical Society (ACS) national meeting, Boston, MA.

By: E. Espinoza

Source: NC State University Libraries
Added: February 5, 2022

2015 journal article

Photoinduced dynamics of a cyanine dye: parallel pathways of non-radiative deactivation involving multiple excited-state twisted transients

Chemical Science, 6(4), 2237–2251.

By: S. Upadhyayula*, V. Nuñez*, E. Espinoza*, J. Larsen*, D. Bao*, D. Shi*, J. Mac*, B. Anvari*, V. Vullev*

topics (OpenAlex): Photochemistry and Electron Transfer Studies; Spectroscopy and Quantum Chemical Studies; Photosynthetic Processes and Mechanisms
TL;DR: A photoexcited cyanine dye deactivates via multiple non-radiative pathways, only one of which is principally responsible for quenching its fluorescence. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: January 17, 2022

2014 journal article

Dipole-Mediated Rectification of Intramolecular Photoinduced Charge Separation and Charge Recombination

Journal of the American Chemical Society, 136(37), 12966–12973.

By: D. Bao*, S. Upadhyayula*, J. Larsen*, B. Xia*, B. Georgieva*, V. Nuñez*, E. Espinoza*, J. Hartman* ...

MeSH headings : Electron Transport; Electrons; Kinetics; Molecular Dynamics Simulation; Static Electricity; Stereoisomerism; ortho-Aminobenzoates / chemistry
topics (OpenAlex): Molecular Junctions and Nanostructures; Photochemistry and Electron Transfer Studies; CO2 Reduction Techniques and Catalysts
TL;DR: The first demonstration of the utility of anthranilamides, moieties with ordered dipoles, for controlling intramolecular charge transfer is described, revealing the underlying complexity of dipole-induced effects on electron transfer and demonstrating unexplored paradigms for molecular rectifiers. (via Semantic Scholar)
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7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: January 17, 2022

Employment

Updated: December 23rd, 2021 19:35

2021 - present

North Carolina State University Raleigh, North Carolina, US
Postdoctoral scholar Chemistry

2021 - 2021

Naval Air Warfare Center Weapons Division China Lake Acres, California, US
Postdoctoral fellow Chemistry

2019 - 2021

University of California, Berkeley Berkeley, California, US
Postdoctoral scholar Bioengineering

Education

Updated: December 23rd, 2021 19:32

2013 - 2019

University of California Riverside Riverside, CA, US
PhD Chemistry Chemistry

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