Evidence map›Paper›PMID 26402781›Full record

ArticleJournal of colloid and interface science2016

Understanding the interactions between porphyrin-containing photosensitizers and polymer-coated nanoparticles in model biological environments.

Samir V Jenkins, Avinash Srivatsan, Kimberly Y Reynolds, Feng Gao, Yongbin Zhang, Colin D Heyes, Ravindra K Pandey, Jingyi Chen

Abstract read
In one paragraph

Article in Journal of colloid and interface science, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Galectin-1-based tumour-targeting for gold nanostructure-mediated photothermal therapy.International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group · 2018
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Samir V JenkinsDepartment of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, United States.
Avinash SrivatsanPhotodynamic Therapy Center, Roswell Park Cancer Institute, Buffalo, NY 14263, United States.
Kimberly Y ReynoldsDepartment of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, United States.
Feng GaoDepartment of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, United States.
Yongbin ZhangNCTR/ORA Nanotechnology Core Facility, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR 72079, United States.
Colin D HeyesDepartment of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, United States.
Ravindra K PandeyPhotodynamic Therapy Center, Roswell Park Cancer Institute, Buffalo, NY 14263, United States.
Jingyi ChenDepartment of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, United States. Electronic address: chenj@uark.edu.

Funding

StatisticsP01CA055791 · NCI · ROSWELL PARK CANCER INSTITUTE CORP · PI PANDEY, RAVINDRA K. · 1992 to 2019
$36.0M
Novel Cancer Nanotechnology Platforms for Photodynamic Therapy and ImagingR01CA119358 · NCI · ROSWELL PARK CANCER INSTITUTE CORP · PI PANDEY, RAVINDRA K. · 2005 to 2009
$3.2M
Center for Protein Structure and FunctionP30GM103450 · NIGMS · UNIVERSITY OF ARKANSAS AT FAYETTEVILLE · PI MILLETT, FRANCIS S · 2012 to 2014
$3.2M
NCI NIH HHS P01 CA055791NCI NIH HHS R01 CA119358NIGMS NIH HHS P30 GM103450
6 · The paper itself

Abstract

Non-covalent incorporation of hydrophobic drugs into polymeric systems is a commonly-used strategy for drug delivery because non-covalent interactions minimize modification of the drug molecules whose efficacy is retained upon release. The behaviors of the drug-polymer delivery system in the biological environments it encounters will affect the efficacy of treatment. In this report, we have investigated the interaction between a hydrophobic drug and its encapsulating polymer in model biological environments using a photosensitizer encapsulated in a polymer-coated nanoparticle system. The photosensitizer, 3-(1'-hexyloxyethyl)-3-devinylpyropheophorbide-a (HPPH), was non-covalently incorporated to the poly(ethylene glycol) (PEG) layer coated on Au nanocages (AuNCs) to yield AuNC-HPPH complexes. The non-covalent binding was characterized by Scatchard analysis, fluorescence lifetime, and Raman experiments. The dissociation constant between PEG and HPPH was found to be ∼35 μM with a maximum loading of ∼2.5×10(5) HPPHs/AuNC. The release was studied in serum-mimetic environment and in vesicles that model human cell membranes. The rate of protein-mediated drug release decreased when using a negatively-charged or cross-linked terminus of the surface-modified PEG. Furthermore, the photothermal effect of AuNCs can initiate burst release, and thus allow control of the release kinetics, demonstrating on-demand drug release. This study provides insights regarding the actions and release kinetics of non-covalent drug delivery systems in biological environments.

Indexed as

Models, BiologicalCell MembraneChlorophyllDrug Delivery SystemsGoldHumansKineticsMetal NanoparticlesPhotosensitizing AgentsPolyethylene GlycolsPorphyrinsSurface Properties2-(1-hexyloxyethyl)-2-devinyl pyropheophorbide-aChlorophyllGoldPhotosensitizing AgentsPolyethylene GlycolsPorphyrinsControlled releaseDrug deliveryGold nanostructurePEG coating

Identifiers

PMID26402781
PMCPMC4980129

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.