Evidence map›Paper›PMID 21678920›Full record

ArticleLangmuir : the ACS journal of surfaces and colloids2011

Simple method for preparing poly(ethylene glycol)-surface-conjugated liposome-encapsulated hemoglobins: physicochemical properties, long-term storage stability, and their reactions with O2, CO, and NO.

Shahid Rameez, Andre F Palmer

Open access · greenAbstract read
In one paragraph

Article in Langmuir : the ACS journal of surfaces and colloids, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.4field-weighted citation impact, top 21% of its field
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

20 citing papers in PubMed, 47 citations in OpenAlex.

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  7. Purification ofACS biomaterials science & engineering · 2020
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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

2 authors at 1 institution in 1 country.

Shahid RameezWilliam G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, United States.
Andre F Palmer
The Ohio State University · US

Funding

Mechanically Stable Blood SubstitutesR01HL078840 · NHLBI · UNIVERSITY OF NOTRE DAME · PI PALMER, ANDRE FRANCIS · 2006 to 2010
$2.1M
Enhanced O2 Delivery to C3A HepatocytesR01DK070862 · NIDDK · UNIVERSITY OF NOTRE DAME · PI PALMER, ANDRE FRANCIS · 2006 to 2009
$585k
NHLBI NIH HHS R01 HL078840NHLBI NIH HHS R01HL078840NIDDK NIH HHS R01 DK070862NIDDK NIH HHS R01DK070862
6 · The paper itself

Abstract

During the last few decades, liposome-encapsulated hemoglobin (LEH) dispersions have been investigated for use as red blood cell (RBC) substitutes. However, the process for formulating LEHs is cumbersome, and the composition of the lipid mixture is often complex. This work investigates a simple approach to formulating LEHs from a simple lipid mixture composed of high-phase-transition lipid distearoylphosphatidylcholine (DSPC) and cholesterol. To improve the circulation half-life and colloidal state of LEHs, the surfaces of unmodified LEHs were conjugated with poly(ethylene glycol) (PEG-LEHs). The results of this work show that PEG-LEH dispersions exhibited average diameters ranging from 166 to 195 nm that were colloidally stable for 4 to 5 months, hemoglobin (Hb) concentrations ranging from 9.6 to 14 g/dL, methemoglobin levels of less than 1%, oxygen affinities (i.e., P(50) values) ranging from 20 to 23 mm Hg, and cooperativity coefficients ranging from 1.4 to 2.2. The reactions of PEG-LEHs with physiologically important ligands, such as oxygen (O(2)), carbon monoxide (CO), and nitric oxide (NO), were also measured. It was observed that PEG-LEHs and RBCs exhibited retarded gaseous ligand binding/release kinetics compared to that of acellular Hb's. This result provides important insight into the pivotal role that the intracellular diffusion barrier plays in the transport of gases into and out of these structures. Collectively, our results demonstrate that the PEG-LEH dispersions prepared in this study show good potential as an RBC substitute.

Indexed as

Chemical PhenomenaAnimalsBlood SubstitutesBlood TransfusionCapsulesCarbon MonoxideCattleHemoglobinsHumansKineticsLiposomesMethemoglobinNitric OxideOxygenPolyethylene GlycolsSurface PropertiesBlood SubstitutesCapsulesCarbon MonoxideHemoglobinsLiposomesMethemoglobinNitric OxideOxygenPolyethylene Glycols

Identifiers

PMID21678920
PMCPMC3148852
OpenAlexW2059384452

What OpenQuestion holds

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LicenceTDM
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.