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Title: Chlorophyll-Inspired Red-Region Fluorophores: Building Block Synthesis and Studies in Aqueous Media

Abstract

Fluorophores that absorb and emit in the red spectral region (600–700 nm) are of great interest in photochemistry and photomedicine. Eight new target chlorins (and 19 new chlorins altogether)—analogues of chlorophyll—of different polarities have been designed and synthesized for various applications; seven of the chlorins are equipped with a bioconjugatable tether. Hydrophobic or amphiphilic chlorins in a non-polar organic solvent (toluene), polar organic solvent (DMF), and aqueous or aqueous micellar media show a sharp emission band in the red region and modest fluorescence quantum yield (Φf = 0.2–0.3). A Poisson analysis implies most micelles are empty and few contain >1 chlorin. Water-soluble chlorins each bearing three PEG (oligoethyleneglycol) groups exhibit narrow emission bands (full-width-at-half maximum <25 nm). The lifetime of the lowest singlet excited state and the corresponding yields and rate constants for depopulation pathways (fluorescence, intersystem crossing, internal conversion) are generally little affected by the PEG groups or dissolution in aqueous or organic media. A set of chlorin–avidin conjugates revealed a 2-fold increase in Φf with increased average chlorin/avidin ratio (2.3–12). In summary, the chlorins of various polarities described herein are well suited as red-emitting fluorophores for applications in aqueous or organic media.

Authors:
 [1];  [1];  [2];  [3];  [3];  [2]; ORCiD logo [1]
  1. North Carolina State Univ., Raleigh, NC (United States)
  2. Washington Univ., St. Louis, MO (United States)
  3. NIRvana Sciences, Inc., Research Triangle Park, NC (United States)
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Photosynthetic Antenna Research Center (PARC); Washington Univ., St. Louis, MO (United States); Energy Frontier Research Centers (EFRC) (United States). Energy Frontier Research Center for Inorganometallic Catalyst Design (ICDC)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1470069
Alternate Identifier(s):
OSTI ID: 1511007
Grant/Contract Number:  
SC0001035; SC0012702
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Molecules
Additional Journal Information:
Journal Volume: 23; Journal Issue: 1; Related Information: PARC partners with Washington University in St. Louis (lead); University of California, Riverside; University of Glasgow, UK; Los Alamos National Laboratory; University of New Mexico; New Mexico Corsortium; North Carolina State University; Northwestern University; Oak Ridge National Laboratory; University of Pennsylvania; Sandia National Laboratories; University of Sheffield, UK; Journal ID: ISSN 1420-3049
Publisher:
MDPI
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; amphiphilic; bioconjugation; chlorin; fluorescence; micelle; Poisson; PEG; protein

Citation Formats

Liu, Rui, Liu, Mengran, Hood, Don, Chen, Chih-Yuan, MacNevin, Christopher, Holten, Dewey, and Lindsey, Jonathan. Chlorophyll-Inspired Red-Region Fluorophores: Building Block Synthesis and Studies in Aqueous Media. United States: N. p., 2018. Web. doi:10.3390/molecules23010130.
Liu, Rui, Liu, Mengran, Hood, Don, Chen, Chih-Yuan, MacNevin, Christopher, Holten, Dewey, & Lindsey, Jonathan. Chlorophyll-Inspired Red-Region Fluorophores: Building Block Synthesis and Studies in Aqueous Media. United States. https://doi.org/10.3390/molecules23010130
Liu, Rui, Liu, Mengran, Hood, Don, Chen, Chih-Yuan, MacNevin, Christopher, Holten, Dewey, and Lindsey, Jonathan. 2018. "Chlorophyll-Inspired Red-Region Fluorophores: Building Block Synthesis and Studies in Aqueous Media". United States. https://doi.org/10.3390/molecules23010130. https://www.osti.gov/servlets/purl/1470069.
@article{osti_1470069,
title = {Chlorophyll-Inspired Red-Region Fluorophores: Building Block Synthesis and Studies in Aqueous Media},
author = {Liu, Rui and Liu, Mengran and Hood, Don and Chen, Chih-Yuan and MacNevin, Christopher and Holten, Dewey and Lindsey, Jonathan},
abstractNote = {Fluorophores that absorb and emit in the red spectral region (600–700 nm) are of great interest in photochemistry and photomedicine. Eight new target chlorins (and 19 new chlorins altogether)—analogues of chlorophyll—of different polarities have been designed and synthesized for various applications; seven of the chlorins are equipped with a bioconjugatable tether. Hydrophobic or amphiphilic chlorins in a non-polar organic solvent (toluene), polar organic solvent (DMF), and aqueous or aqueous micellar media show a sharp emission band in the red region and modest fluorescence quantum yield (Φf = 0.2–0.3). A Poisson analysis implies most micelles are empty and few contain >1 chlorin. Water-soluble chlorins each bearing three PEG (oligoethyleneglycol) groups exhibit narrow emission bands (full-width-at-half maximum <25 nm). The lifetime of the lowest singlet excited state and the corresponding yields and rate constants for depopulation pathways (fluorescence, intersystem crossing, internal conversion) are generally little affected by the PEG groups or dissolution in aqueous or organic media. A set of chlorin–avidin conjugates revealed a 2-fold increase in Φf with increased average chlorin/avidin ratio (2.3–12). In summary, the chlorins of various polarities described herein are well suited as red-emitting fluorophores for applications in aqueous or organic media.},
doi = {10.3390/molecules23010130},
url = {https://www.osti.gov/biblio/1470069}, journal = {Molecules},
issn = {1420-3049},
number = 1,
volume = 23,
place = {United States},
year = {Wed Jan 10 00:00:00 EST 2018},
month = {Wed Jan 10 00:00:00 EST 2018}
}

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Works referenced in this record:

Click Chemistry: Diverse Chemical Function from a Few Good Reactions
journal, June 2001


Synthesis and Photochemical Properties of 12-Substituted versus 13-Substituted Chlorins
journal, August 2009


Sparsely substituted chlorins as core constructs in chlorophyll analogue chemistry. Part 2: Derivatization
journal, April 2007


Investigation of MALDI-TOF Mass Spectrometry of Diverse Synthetic Metalloporphyrins, Phthalocyanines and Multiporphyrin Arrays
journal, April 1999


Porphyrin, Chlorin, and Bacteriochlorin Isothiocyanates:  Useful Reagents for the Synthesis of Photoactive Bioconjugates
journal, March 2002


Ionization in Solution by Photoactivated Electron Transfer
journal, October 1982


Amphiphilic BODIPY-Hydroporphyrin Energy Transfer Arrays with Broadly Tunable Absorption and Deep Red/Near-Infrared Emission in Aqueous Micelles
journal, June 2017


Photophysical Properties and Electronic Structure of Porphyrins Bearing Zero to Four meso -Phenyl Substituents: New Insights into Seemingly Well Understood Tetrapyrroles
journal, December 2016


Recent advances in the transition metal-catalyzed twofold oxidative C–H bond activation strategy for C–C and C–N bond formation
journal, January 2011


Bioconjugatable, PEGylated hydroporphyrins for photochemistry and photomedicine. Narrow-band, red-emitting chlorins
journal, January 2016


Investigation and Refinement of Palladium-Coupling Conditions for the Synthesis of Diarylethyne-Linked Multiporphyrin Arrays
journal, October 1999


Why Chlorophyll?
journal, October 1973


Determination of the aggregation number and charge of ionic surfactant micelles from the stepwise thinning of foam films
journal, November 2012


Role of Functional Groups and Surfactant Charge in Regulating Chlorophyll Aggregation in Micellar Solutions
journal, February 2002


A study of noncovalent protein complexes by matrix-assisted laser desorption/ionization
journal, July 2007


Exchange Mechanisms for Sodium Dodecyl Sulfate Micelles: High Salt Concentration
journal, May 2004


One pot direct synthesis of β-ketoesters via carbonylation of aryl halides using cobalt carbonyl
journal, June 2014


Modification of the Peripheral Substituents in Chlorophylls a and b and Their Derivatives (Review)
journal, April 2004


Synthesis of chlorins, bacteriochlorins and their tetraaza analogues
journal, July 2016


Dynamics of the redistribution of 1-dodecylpyrene aggregates in micellar solution
journal, November 1988


Two Complementary Routes to 7-Substituted Chlorins. Partial Mimics of Chlorophyll b
journal, September 2007


Kinetics and mechanism of reversible, base-catalyzed ring closure of 3-(methoxycarbonyl)propionanilide and O-(methoxycarbonylmethyl)-N-phenylcarbamate
journal, January 1989


Fusion and Fission Inhibited by the Same Mechanism in Electrostatically Charged Surfactant Micelles
journal, June 2014


Environment-Dependent Guest Exchange in Supramolecular Hosts
journal, October 2014


Soluble Synthetic Multiporphyrin Arrays. 1. Modular Design and Synthesis
journal, January 1996


Bioconjugatable, PEGylated hydroporphyrins for photochemistry and photomedicine. Narrow-band, near-infrared-emitting bacteriochlorins
journal, January 2016


Chlorophyll a self-organization in microheterogeneous surfactant systems
journal, May 1996


Environment-Dependent Guest Exchange in Supramolecular Hosts
journal, October 2014


Effects of Substituents on Synthetic Analogs of Chlorophylls. Part 2: Redox Properties, Optical Spectra and Electronic Structure
journal, September 2007


The Molecular Weight of Avidin
journal, August 1964


Amphiphilic chlorins and bacteriochlorins in micellar environments. Molecular design, de novo synthesis, and photophysical properties
journal, January 2013


Facile synthesis of chlorin bioconjugates by a series of click reactions
journal, January 2017


Synthesis and photophysical properties of chlorins bearing 0–4 distinct meso-substituents
journal, January 2013


Photophysical properties of porphyrins in biological membranes
journal, August 1995


Investigation and Refinement of Palladium-Coupling Conditions for the Synthesis of Diarylethyne-Linked Multiporphyrin Arrays
journal, October 1999


Modulation of the catalytic activity of porphyrins by lipid-and surfactant-containing nanostructures
journal, January 2011


Recent advances in the transition metal-catalyzed twofold oxidative C–H bond activation strategy for C–C and C–N bond formation
journal, January 2011


Photophysical Properties and Electronic Structure of Porphyrins Bearing Zero to Four meso -Phenyl Substituents: New Insights into Seemingly Well Understood Tetrapyrroles
journal, December 2016


Exchange Mechanisms for Sodium Dodecyl Sulfate Micelles: High Salt Concentration
journal, May 2004


Synthesis and Electronic Properties of Regioisomerically Pure Oxochlorins
journal, October 2002


Synthetic Chlorins Bearing Auxochromes at the 3- and 13-Positions
journal, May 2006


Fusion and Fission Inhibited by the Same Mechanism in Electrostatically Charged Surfactant Micelles
journal, June 2014


Synthesis of Ethyne-Linked or Butadiyne-Linked Porphyrin Arrays Using Mild, Copper-Free, Pd-Mediated Coupling Reactions
journal, August 1995


Avidin. 1. the use of [14c]Biotin for Kinetic Studies and for Assay
journal, December 1963


Porphyrin, Chlorin, and Bacteriochlorin Isothiocyanates:  Useful Reagents for the Synthesis of Photoactive Bioconjugates
journal, March 2002


Dynamics of the redistribution of 1-dodecylpyrene aggregates in micellar solution
journal, November 1988


Light, iron, Sam Granick and the origin of life
journal, August 1992


Synthesis and protonation behavior of a water-soluble N-fused porphyrin: Conjugation with an oligoarginine by click chemistry
journal, May 2009


Regioselective Bromination Tactics in the de Novo Synthesis of Chlorophyll b Analogues
journal, May 2009


Amphiphilic BODIPY-Hydroporphyrin Energy Transfer Arrays with Broadly Tunable Absorption and Deep Red/Near-Infrared Emission in Aqueous Micelles
journal, June 2017


Sparsely substituted chlorins as core constructs in chlorophyll analogue chemistry. Part 2: Derivatization
journal, April 2007


Ionization in Solution by Photoactivated Electron Transfer
journal, October 1982


Elaboration of an unexplored substitution site in synthetic bacteriochlorins
journal, July 2015


Refined Synthesis of 2,3,4,5-Tetrahydro-1,3,3-trimethyldipyrrin, a Deceptively Simple Precursor to Hydroporphyrins
journal, September 2005


Boron-Complexation Strategy for Use with 1-Acyldipyrromethanes
journal, August 2004


Determination of the aggregation number and charge of ionic surfactant micelles from the stepwise thinning of foam films
journal, November 2012


One pot direct synthesis of β-ketoesters via carbonylation of aryl halides using cobalt carbonyl
journal, June 2014


Role of Functional Groups and Surfactant Charge in Regulating Chlorophyll Aggregation in Micellar Solutions
journal, February 2002


Salt Effects on Solute Exchange and Micelle Fission in Sodium Dodecyl Sulfate Micelles below the Micelle-to-Rod Transition
journal, February 2003


Synthetic Chlorins, Possible Surrogates for Chlorophylls, Prepared by Derivatization of Porphyrins
journal, March 2016


New coupling reagents in peptide chemistry
journal, January 1989


Why Chlorophyll?
journal, October 1973


Fast and Robust Route to Hydroporphyrin−Chalcones with Extended Red or Near-Infrared Absorption
journal, April 2009


Synthesis and Electronic Properties of Regioisomerically Pure Oxochlorins
journal, October 2002


Avidin. 1. the use of [14c]Biotin for Kinetic Studies and for Assay
journal, December 1963


Chlorophyll a self-organization in microheterogeneous surfactant systems
journal, May 1996


Synthesis of perylene–porphyrin building blocks and rod-like oligomers for light-harvesting applications
journal, January 2002


Soluble Synthetic Multiporphyrin Arrays. 1. Modular Design and Synthesis
journal, January 1996


Kinetics and mechanism of reversible, base-catalyzed ring closure of 3-(methoxycarbonyl)propionanilide and O-(methoxycarbonylmethyl)-N-phenylcarbamate
journal, January 1989


The Sonogashira Reaction:  A Booming Methodology in Synthetic Organic Chemistry
journal, March 2007


Effects of Substituents on Synthetic Analogs of Chlorophylls. Part 2: Redox Properties, Optical Spectra and Electronic Structure
journal, September 2007


Synthesis and protonation behavior of a water-soluble N-fused porphyrin: Conjugation with an oligoarginine by click chemistry
journal, May 2009


Fast and Robust Route to Hydroporphyrin−Chalcones with Extended Red or Near-Infrared Absorption
journal, April 2009


The Sonogashira Reaction: A Booming Methodology in Synthetic Organic Chemistry
journal, June 2007


Synthetic Chlorins, Possible Surrogates for Chlorophylls, Prepared by Derivatization of Porphyrins
journal, March 2016


Two Complementary Routes to 7-Substituted Chlorins. Partial Mimics of Chlorophyll b
journal, September 2007


Salt Effects on Solute Exchange in Sodium Dodecyl Sulfate Micelles
journal, March 2002


Synthesis of Ethyne-Linked or Butadiyne-Linked Porphyrin Arrays Using Mild, Copper-Free, Pd-Mediated Coupling Reactions
journal, August 1995


Amphiphilic chlorins and bacteriochlorins in micellar environments. Molecular design, de novo synthesis, and photophysical properties
journal, January 2013


Refined Synthesis of 2,3,4,5-Tetrahydro-1,3,3-trimethyldipyrrin, a Deceptively Simple Precursor to Hydroporphyrins
journal, September 2005


Egg White Avidin
journal, February 1971


Works referencing / citing this record:

Steady-State Linear and Non-linear Optical Spectroscopy of Organic Chromophores and Bio-macromolecules
journal, April 2018