Measurement of Crystalline Silica Aerosol Using Quantum Cascade Laser-Based Infrared Spectroscopy.

Abstract:

:Inhalation exposure to airborne respirable crystalline silica (RCS) poses major health risks in many industrial environments. There is a need for new sensitive instruments and methods for in-field or near real-time measurement of crystalline silica aerosol. The objective of this study was to develop an approach, using quantum cascade laser (QCL)-based infrared spectroscopy (IR), to quantify airborne concentrations of RCS. Three sampling methods were investigated for their potential for effective coupling with QCL-based transmittance measurements: (i) conventional aerosol filter collection, (ii) focused spot sample collection directly from the aerosol phase, and (iii) dried spot obtained from deposition of liquid suspensions. Spectral analysis methods were developed to obtain IR spectra from the collected particulate samples in the range 750-1030 cm-1. The new instrument was calibrated and the results were compared with standardized methods based on Fourier transform infrared (FTIR) spectrometry. Results show that significantly lower detection limits for RCS (≈330 ng), compared to conventional infrared methods, could be achieved with effective microconcentration and careful coupling of the particulate sample with the QCL beam. These results offer promise for further development of sensitive filter-based laboratory methods and portable sensors for near real-time measurement of crystalline silica aerosol.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Wei S,Kulkarni P,Ashley K,Zheng L

doi

10.1038/s41598-017-14363-3

subject

Has Abstract

pub_date

2017-10-24 00:00:00

pages

13860

issue

1

issn

2045-2322

pii

10.1038/s41598-017-14363-3

journal_volume

7

pub_type

杂志文章
  • Spin-polarised electrons in a one-magnet-only Mott spin junction.

    abstract::The current flowing through a Mott spin junction depends on the relative spin orientation of the two ferromagnetic layers comprising the "source" and "drain" sides of the junction. The resulting current asymmetry is detected as giant or tunnelling magnetoresistance depending on whether the two ferromagnets are separat...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-017-13453-6

    authors: De Pietro L,Bertolini G,Peter Q,Cabrera H,Vindigni A,Gürlü O,Pescia D,Ramsperger U

    更新日期:2017-10-16 00:00:00

  • Energy gaps in Bi(2)Sr(2)CaCu(2)O(8+δ) cuprate superconductors.

    abstract::The relationship between the cuprate pseudogap (Δ(p)) and superconducting gap (Δ(s)) remains an unsolved mystery. Here, we present a temperature- and doping-dependent tunneling study of submicron Bi(2)Sr(2)CaCu(2)O(8+δ) intrinsic Josephson junctions, which provides a clear evidence that Δ(s) closes at a temperature T(...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep00248

    authors: Ren JK,Zhu XB,Yu HF,Tian Y,Yang HF,Gu CZ,Wang NL,Ren YF,Zhao SP

    更新日期:2012-01-01 00:00:00

  • Neuroprotection by Heat Shock Factor-1 (HSF1) and Trimerization-Deficient Mutant Identifies Novel Alterations in Gene Expression.

    abstract::Heat shock factor-1 (HSF1) protects neurons from death caused by the accumulation of misfolded proteins by stimulating the transcription of genes encoding heat shock proteins (HSPs). This stimulatory action depends on the association of trimeric HSF1 to sequences within HSP gene promoters. However, we recently describ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-018-35610-1

    authors: Qu Z,Titus ASCLS,Xuan Z,D'Mello SR

    更新日期:2018-11-22 00:00:00

  • Faecal microRNAs as a non-invasive tool in the diagnosis of colonic adenomas and colorectal cancer: A meta-analysis.

    abstract::MicroRNAs (miRNAs) are proposed as potential biomarkers for the diagnosis of numerous diseases. Here, we performed a meta-analysis to evaluate the utility of faecal miRNAs as a non-invasive tool in colorectal cancer (CRC) screening. A systematic literature search, according to predetermined criteria, in five databases...

    journal_title:Scientific reports

    pub_type: 杂志文章,meta分析

    doi:10.1038/s41598-019-45570-9

    authors: Yau TO,Tang CM,Harriss EK,Dickins B,Polytarchou C

    更新日期:2019-07-01 00:00:00

  • A process to control light in a micro resonator through a coupling modulation by surface acoustic waves.

    abstract::A novel process to control light through the coupling modulation by surface acoustic wave (SAW) is presented in an optical micro resonator. An optical waveguide modulator of a racetrack resonator on silicon-on-insulator (SOI) technology is took as an example to explore the mechanism. A finite-difference time-domain (F...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep30681

    authors: Fan G,Li Y,Hu C,Lei L,Guo Y

    更新日期:2016-08-03 00:00:00

  • Role of vocal tract characteristics in individual discrimination by Japanese macaques (Macaca fuscata).

    abstract::The Japanese macaque (Macaca fuscata) exhibits a species-specific communication sound called the "coo call" to locate group members and maintain within-group contact. Monkeys have been demonstrated to be capable of discriminating between individuals based only on their voices, but there is still debate regarding how t...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep32042

    authors: Furuyama T,Kobayasi KI,Riquimaroux H

    更新日期:2016-08-23 00:00:00

  • Reprogramming Escherichia coli for the production of prenylated indole diketopiperazine alkaloids.

    abstract::Prenylated indole diketopiperazine (DKP) alkaloids are important bioactive molecules or their precursors. In the context of synthetic biology, efficient means for their biological production would increase their chemical diversification and the discovery of novel bioactive compounds. Here, we prove the suitability of ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-45519-y

    authors: Dubois P,Correia I,Le Chevalier F,Dubois S,Jacques I,Canu N,Moutiez M,Thai R,Gondry M,Lequin O,Belin P

    更新日期:2019-06-25 00:00:00

  • Fiddler crab bioturbation determines consistent changes in bacterial communities across contrasting environmental conditions.

    abstract::Ecosystem functions are regulated by compositional and functional traits of bacterial communities, shaped by stochastic and deterministic processes. Biogeographical studies have revealed microbial community taxonomy in a given ecosystem to change alongside varying environmental characteristics. Considering that stable...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-40315-0

    authors: Booth JM,Fusi M,Marasco R,Mbobo T,Daffonchio D

    更新日期:2019-03-06 00:00:00

  • Diplosporous development in Boehmeria tricuspis: Insights from de novo transcriptome assembly and comprehensive expression profiling.

    abstract::Boehmeria tricuspis includes sexually reproducing diploid and apomictic triploid individuals. Previously, we established that triploid B. tricuspis reproduces through obligate diplospory. To understand the molecular basis of apomictic development in B. tricuspis, we sequenced and compared transcriptomic profiles of th...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep46043

    authors: Tang Q,Zang G,Cheng C,Luan M,Dai Z,Xu Y,Yang Z,Zhao L,Su J

    更新日期:2017-04-06 00:00:00

  • The effectiveness of virtual reality based interventions for symptoms of anxiety and depression: A meta-analysis.

    abstract::We report a meta-analysis of virtual reality (VR) interventions for anxiety and depression outcomes, as well as treatment attrition. We included randomized controlled trials comparing VR interventions, alone or in combination, to control conditions or other active psychological interventions. Effects sizes (Hedges' g)...

    journal_title:Scientific reports

    pub_type: 杂志文章,meta分析

    doi:10.1038/s41598-018-28113-6

    authors: Fodor LA,Coteț CD,Cuijpers P,Szamoskozi Ș,David D,Cristea IA

    更新日期:2018-07-09 00:00:00

  • A physiological role of cyclic electron transport around photosystem I in sustaining photosynthesis under fluctuating light in rice.

    abstract::Plants experience a highly variable light environment over the course of the day. To reveal the molecular mechanisms of their photosynthetic response to fluctuating light, we examined the role of two cyclic electron flows around photosystem I (CEF-PSI)--one depending on PROTON GRADIENT REGULATION 5 (PGR5) and one on N...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep20147

    authors: Yamori W,Makino A,Shikanai T

    更新日期:2016-02-02 00:00:00

  • Real-Time Characterization Using in situ RHEED Transmission Mode and TEM for Investigation of the Growth Behaviour of Nanomaterials.

    abstract::A novel characterization technique using both in situ reflection high-energy electron diffraction (RHEED) transmission mode and transmission electron microscopy (TEM) has been developed to investigate the growth behaviour of semiconductor nanostructures. RHEED employed in transmission mode enables the acquisition of s...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-018-19857-2

    authors: Jo J,Tchoe Y,Yi GC,Kim M

    更新日期:2018-01-26 00:00:00

  • Role of freeze-thaw cycles and chlorpyrifos insecticide use on diffuse Cd loss and sediment accumulation.

    abstract::Freeze-thaw cycles are predicted to increase in cold temperate regions. The potential influence of the interactions of freeze-thaw cycles and agrochemicals on the release of Cd into river water is unknown. In this study, the interactions of freeze-thaw cycles and chlorpyrifos (FC) on Cd mobility in soils were analysed...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep27302

    authors: Wang F,Ouyang W,Hao F,Jiao W,Shan Y,Lin C

    更新日期:2016-06-02 00:00:00

  • The secreted factor Ag1 missing in higher vertebrates regulates fins regeneration in Danio rerio.

    abstract::Agr family includes three groups of genes, Ag1, Agr2 and Agr3, which encode the thioredoxin domain-containing secreted proteins and have been shown recently to participate in regeneration of the amputated body appendages in amphibians. By contrast, higher vertebrates have only Agr2 and Agr3, but lack Ag1, and have low...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep08123

    authors: Ivanova AS,Shandarin IN,Ermakova GV,Minin AA,Tereshina MB,Zaraisky AG

    更新日期:2015-01-29 00:00:00

  • Myeloid maturation potentiates STAT3-mediated atypical IFN-γ signaling and upregulation of PD-1 ligands in AML and MDS.

    abstract::Interferon (IFN)-γ is the major mediator of anti-tumor immune responses; nevertheless, cancer cells use intrigue strategies to alter IFN-γ signaling and avoid elimination. Understanding the immune regulatory mechanisms employed by acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS) cells upon exposure to I...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-48256-4

    authors: Yoyen-Ermis D,Tunali G,Tavukcuoglu E,Horzum U,Ozkazanc D,Sutlu T,Buyukasik Y,Esendagli G

    更新日期:2019-08-12 00:00:00

  • Controllable thermal rectification realized in binary phase change composites.

    abstract::Phase transition is a natural phenomenon happened around our daily life, represented by the process from ice to water. While melting and solidifying at a certain temperature, a high heat of fusion is accompanied, classified as the latent heat. Phase change material (PCM) has been widely applied to store and release la...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep08884

    authors: Chen R,Cui Y,Tian H,Yao R,Liu Z,Shu Y,Li C,Yang Y,Ren T,Zhang G,Zou R

    更新日期:2015-03-09 00:00:00

  • Serum Polyunsaturated Fatty Acids Correlate with Serum Cytokines and Clinical Disease Activity in Crohn's Disease.

    abstract::Crohn's disease (CD) has been associated with an increased consumption of n-6 polyunsaturated fatty acid (PUFA), while greater intake of n-3 PUFA has been associated with a reduced risk. We sought to investigate serum fatty acid composition in CD, and associations of fatty acids with disease activity, cytokines, and a...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-39232-z

    authors: Scoville EA,Allaman MM,Adams DW,Motley AK,Peyton SC,Ferguson SL,Horst SN,Williams CS,Beaulieu DB,Schwartz DA,Wilson KT,Coburn LA

    更新日期:2019-02-27 00:00:00

  • DNA barcode for the identification of the sand fly Lutzomyia longipalpis plant feeding preferences in a tropical urban environment.

    abstract::Little is known about the feeding behavior of hematophagous insects that require plant sugar to complete their life cycles. We studied plant feeding of Lutzomyia longipalpis sand flies, known vectors of Leishmania infantum/chagasi parasites, in a Brazilian city endemic with visceral leishmaniasis. The DNA barcode tech...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep29742

    authors: Lima LHGM,Mesquita MR,Skrip L,de Souza Freitas MT,Silva VC,Kirstein OD,Abassi I,Warburg A,Balbino VQ,Costa CHN

    更新日期:2016-07-20 00:00:00

  • Relationships between alpha oscillations during speech preparation and the listener N400 ERP to the produced speech.

    abstract::While previous studies separately demonstrate EEG spectral modulations during speech preparation and ERP responses to the listened speech, it is unclear whether these responses are related on a trial-by-trial basis between a speaker and listener. In order to determine whether these responses are related in real-time, ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-018-31038-9

    authors: Bridwell DA,Henderson S,Sorge M,Plis S,Calhoun VD

    更新日期:2018-08-27 00:00:00

  • Interleukin 37 promotes angiogenesis through TGF-β signaling.

    abstract::IL-37 is a novel pro-angiogenic cytokine that potently promotes endothelial cell activation and pathological angiogenesis in our previous study, but the mechanisms behind the pro-angiogenic effect of IL-37 are less well understood. Extending our observations, we found that TGF-β interacts with IL-37, and potently enha...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-017-06124-z

    authors: Zhao M,Hu Y,Jin J,Yu Y,Zhang S,Cao J,Zhai Y,Wei R,Shou J,Cai W,Liu S,Yang X,Xu GT,Yang J,Corry DB,Su SB,Liu X,Yang T

    更新日期:2017-07-21 00:00:00

  • Ultrafast optical-ultrasonic system and miniaturized catheter for imaging and characterizing atherosclerotic plaques in vivo.

    abstract::Atherosclerotic coronary artery disease (CAD) is the number one cause of death worldwide. The majority of CAD-induced deaths are due to the rupture of vulnerable plaques. Accurate assessment of plaques is crucial to optimize treatment and prevent death in patients with CAD. Current diagnostic techniques are often limi...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep18406

    authors: Li J,Ma T,Mohar D,Steward E,Yu M,Piao Z,He Y,Shung KK,Zhou Q,Patel PM,Chen Z

    更新日期:2015-12-18 00:00:00

  • Femtosecond laser processing by using patterned vector optical fields.

    abstract::We present and demonstrate an approach for femtosecond laser processing by using patterned vector optical fields (PVOFs) composed of multiple individual vector optical fields. The PVOFs can be flexibly engineered due to the diversity of individual vector optical fields in spatial arrangement and distribution of states...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep02281

    authors: Lou K,Qian SX,Ren ZC,Tu C,Li Y,Wang HT

    更新日期:2013-01-01 00:00:00

  • Computational support for a scaffolding mechanism of centriole assembly.

    abstract::Centrioles are essential for forming cilia, flagella and centrosomes. Successful centriole assembly requires proteins of the SAS-6 family, which can form oligomeric ring structures with ninefold symmetry in vitro. While important progress has been made in understanding SAS-6 protein biophysics, the mechanisms enabling...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep27075

    authors: Klein HC,Guichard P,Hamel V,Gönczy P,Schwarz US

    更新日期:2016-06-08 00:00:00

  • A Bayesian explanation of the 'Uncanny Valley' effect and related psychological phenomena.

    abstract::There are a number of psychological phenomena in which dramatic emotional responses are evoked by seemingly innocuous perceptual stimuli. A well known example is the 'uncanny valley' effect whereby a near human-looking artifact can trigger feelings of eeriness and repulsion. Although such phenomena are reasonably well...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep00864

    authors: Moore RK

    更新日期:2012-01-01 00:00:00

  • The infinite possible growth ambients that support single-wall carbon nanotube forest growth.

    abstract::We report the virtually infinite possible carbon feedstocks which support the highly efficient growth of single-wall carbon nanotubes (SWCNTs) using on the water-assisted chemical vapor deposition method. Our results demonstrate that diverse varieties of carbon feedstocks, in the form of hydrocarbons, spanning saturat...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep03334

    authors: Kimura H,Goto J,Yasuda S,Sakurai S,Yumura M,Futaba DN,Hata K

    更新日期:2013-11-26 00:00:00

  • Evolving pneumococcal serotypes and sequence types in relation to high antibiotic stress and conditional pneumococcal immunization.

    abstract::In Taiwan, beginning in 2013, the 13-valent pneumococcal conjugate vaccine (PCV13) was provided free of charge to children 2-5 years of age. In 2014, this was extended to children 1-5 years old. During 2012-2014, 953 cases of culture-confirmed pneumococcal disease (CCPD), including 104 invasive pneumococcal disease (I...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep15843

    authors: Su LH,Kuo AJ,Chia JH,Li HC,Wu TL,Feng Y,Chiu CH

    更新日期:2015-11-02 00:00:00

  • Machine Learning for Diagnosis of Hematologic Diseases in Magnetic Resonance Imaging of Lumbar Spines.

    abstract::We aimed to assess feasibility of a support vector machine (SVM) texture classifier to discriminate pathologic infiltration patterns from the normal bone marrows in MRI. This retrospective study included 467 cases, which were split into a training (n = 360) and a test set (n = 107). A sagittal T1-weighted lumbar spina...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-42579-y

    authors: Hwang EJ,Jung JY,Lee SK,Lee SE,Jee WH

    更新日期:2019-04-15 00:00:00

  • The coelacanth rostral organ is a unique low-resolution electro-detector that facilitates the feeding strike.

    abstract::The cartilaginous and non-neopterygian bony fishes have an electric sense typically comprised of hundreds or thousands of sensory canals distributed in broad clusters over the head. This morphology facilitates neural encoding of local electric field intensity, orientation, and polarity, used for determining the positi...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep08962

    authors: Berquist RM,Galinsky VL,Kajiura SM,Frank LR

    更新日期:2015-03-11 00:00:00

  • Acoustic illusion near boundaries of arbitrary curved geometry.

    abstract::We have proposed a scheme and presented the first experimental demonstration of acoustic illusion, by using anisotropic metamaterials to manipulate the acoustic field near boundaries of arbitrary curved geometry. Numerical simulations and experimental results show that in the presence of an illusion cloak, any object ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep01427

    authors: Kan W,Liang B,Zhu X,Li R,Zou X,Wu H,Yang J,Cheng J

    更新日期:2013-01-01 00:00:00

  • Rarity of monodominance in hyperdiverse Amazonian forests.

    abstract::Tropical forests are known for their high diversity. Yet, forest patches do occur in the tropics where a single tree species is dominant. Such "monodominant" forests are known from all of the main tropical regions. For Amazonia, we sampled the occurrence of monodominance in a massive, basin-wide database of forest-inv...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-50323-9

    authors: Ter Steege H,Henkel TW,Helal N,Marimon BS,Marimon-Junior BH,Huth A,Groeneveld J,Sabatier D,Coelho LS,Filho DAL,Salomão RP,Amaral IL,Matos FDA,Castilho CV,Phillips OL,Guevara JE,Carim MJV,Cárdenas López D,Magnusson WE

    更新日期:2019-09-25 00:00:00