scholarly journals Core/Sheath-Structured Composite Nanofibers Containing Cinnamon Oil: Their Antibacterial and Antifungal Properties and Acaricidal Effect against House Dust Mites

Polymers ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 243 ◽  
Author(s):  
Yoonwon Jung ◽  
Hyukjoo Yang ◽  
In-Yong Lee ◽  
Tai-Soon Yong ◽  
Seungsin Lee
Keyword(s):  
House Dust ◽  
Composite Nanofibers ◽  
Laser Scanning Microscopy ◽  
House Dust Mites ◽  
Confocal Laser ◽  
Dust Mites ◽  
Cinnamon Oil ◽  
Water Emulsion ◽  
Antifungal Properties ◽  
Antibacterial And Antifungal

This study aimed to fabricate core/sheath-structured composite nanofibers containing cinnamon oil by emulsion electrospinning and to investigate their acaricidal effect on house dust mites as well as their antibacterial and antifungal properties in relation to cinnamon oil concentration in the nanofibers. An oil-in-water emulsion, which comprised cinnamon oil and poly(vinyl alcohol) solution as oil and water phases, respectively, was used to prepare core/sheath-structured nanofibers. The morphology and the inner structure of the electrospun nanofibers were observed by scanning electron microscopy and confocal laser scanning microscopy. Core/sheath-structured nanofibers containing cinnamon oil were successfully prepared by emulsion electrospinning. The composite nanofibers prepared from an emulsion containing 20 wt% of cinnamon oil exhibited a strong acaricidal effect against house dust mites (Dermatophagoides farinae). The composite nanofibers fabricated from an emulsion containing 4.29 wt% of cinnamon oil showed excellent antimicrobial effects against Staphylococcus aureus and a series of fungi that can trigger respiratory- and skin-related diseases. The release profile of cinnamon oil from the core/sheath-structured nanofibers showed a continuous release of functional ingredients over 28 days. Our findings demonstrate that the use of such fibrous structures could be a promising approach for delivering naturally derived bioactive agents in a controlled way.

Seasonal differences in airway hyperresponsiveness in asthmatic patients: relationship with allergen exposure and sensitization to house dust mites

1997 ◽  
Vol 27 (6) ◽  
pp. 627-633 ◽  
Author(s):  
S. VAN DER HEIDE ◽  
J. G. R. DE MONCHY ◽  
K. DE VRIES ◽  
A. E. J. DUBOIS ◽  
H. F. KAUFFMAN
Keyword(s):  
House Dust ◽  
Airway Hyperresponsiveness ◽  
Allergen Exposure ◽  
House Dust Mites ◽  
Dust Mites ◽  
Seasonal Differences ◽  
Asthmatic Patients

Correlation Between Density of House Dust Mites and Recurrence of Urticaria

2019 ◽  
Vol 8 (3) ◽  
pp. 511
Author(s):  
Gardenia Akhyar ◽  
Rahma Ledika Veroci
Keyword(s):  
Skin Prick Test ◽  
House Dust ◽  
House Dust Mites ◽  
Dust Mites ◽  
Prick Test

Beberapa kasus urtikaria pada paparan debu dan diantaranya menghubungkan sensitivitas tungau debu rumah (TDR) dengan urtikaria berdasarkan riwayat pasien dan pemeriksaan uji intradermal. Tujuan penelitian ini adalah menentukan korelasi antara kepadatan TDR dan rekurensi urtikaria. Jumlah sampel pada penelitian ini 30 orang. Kepadatan TDR dari tiap kamar sampel dihitung dengan mengumpulkan debu, dan sampel dinilai sensitivitas terhadao TDR dengan pemeriksaan skin prick test (SPT). Diagnosis urtikaria berdasarkan anamnesis, kemudian ditanyaan rekurensinya dalam tiga bulan terakhir. Hasil: Dari 30 peserta, tujuh (23,3%) sampel memiliki kepadatan TDR sedang sementara 23 (76,7%) memiliki kepadatan rendah. Selain itu, 15 sampel positif SPT terhadap alergen TDR. Dari anamnesis, 12 (40%) sampel didiagnosis urtikaria dan diantaranya, 11 orang (91,67%) positif terhadap SPT. Tidak ada sampel yang memiliki rekurensi urtikaria dalam tiga bulan terakhir. Kesimpulan: Meskipun penelitian ini tidak menunjukkan korelasi yang signifikan antara kepadatan TDR dan tingkat kekambuhan urtikaria (p> 0,05), TDR memang bisa memicu eksaserbasi. Penelitian ini membutuhkan penyelidikan lebih lanjut dengan ukuran sampel yang lebih besar.

scholarly journals Investigation of Spin Coating Cerium-Doped Hydroxyapatite Thin Films with Antifungal Properties

Coatings ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 464
Author(s):  
Simona Liliana Iconaru ◽  
Mihai Valentin Predoi ◽  
Patrick Chapon ◽  
Sofia Gaiaschi ◽  
Krzysztof Rokosz ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Photoelectron Spectroscopy ◽  
Spin Coating ◽  
Laser Scanning ◽  
Laser Scanning Microscopy ◽  
Confocal Laser ◽  
X Ray ◽  
Antifungal Properties ◽  
Scanning Electron

In this study, the cerium-doped hydroxyapatite (Ca10−xCex(PO4)6(OH)2 with xCe = 0.1, 10Ce-HAp) coatings obtained by the spin coating method were presented for the first time. The stability of the 10Ce-HAp suspension particles used in the preparation of coatings was evaluated by ultrasonic studies, transmission electron microscopy (TEM), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The surface morphology of the 10Ce-HAp coating was studied by SEM and atomic force microscopy (AFM) techniques. The obtained 10Ce-HAp coatings were uniform and without cracks or unevenness. Glow discharge optical emission spectroscopy (GDOES) and X-ray photoelectron spectroscopy (XPS) were used for the investigation of fine chemical depth profiling. The antifungal properties of the HAp and 10Ce-HAp suspensions and coatings were assessed using Candida albicans ATCC 10231 (C. albicans) fungal strain. The quantitative antifungal assays demonstrated that both 10Ce-HAp suspensions and coatings exhibited strong antifungal properties and that they successfully inhibited the development and adherence of C. albicans fungal cells for all the tested time intervals. The scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM) visualization of the C. albicans fungal cells adherence to the 10Ce-HAp surface also demonstrated their strong inhibitory effects. In addition, the qualitative assays also suggested that the 10Ce-HAp coatings successfully stopped the biofilm formation.

Development of a new multiplex PCR to detect prevalent species of house dust mites in house dust

2021 ◽  
pp. 1-13
Author(s):  
Ana Sofia Oliveira ◽  
Carlos Gaspar ◽  
Joana Rolo ◽  
Cristiana Costa Pereira ◽  
Rita Palmeira-de-Oliveira ◽  
...  
Keyword(s):  
Multiplex Pcr ◽  
House Dust ◽  
House Dust Mites ◽  
Dust Mites ◽  
Prevalent Species

scholarly journals Effect of several acaricides on the action of house dust mites

2001 ◽  
Vol 52 (2) ◽  
pp. 149 ◽  
Author(s):  
T. Hashimoto ◽  
K. Mizutani ◽  
G. Shinjo
Keyword(s):  
House Dust ◽  
House Dust Mites ◽  
Dust Mites

Population Dynamics of the House Dust Mites Dermatophagoides farinae, D. pteronyssinus, and Euroglyphus maynei (Acari: Pyroglyphidae) at Specific Relative Humidities

1998 ◽  
Vol 35 (1) ◽  
pp. 46-53 ◽  
Author(s):  
Larry G. Arlian ◽  
Patricia D. Confer ◽  
Christine M. Rapp ◽  
Diann L. Vyszenski-Moher ◽  
John C. S. Chang
Keyword(s):  
Population Dynamics ◽  
House Dust ◽  
House Dust Mites ◽  
Dust Mites ◽  
Dermatophagoides Farinae ◽  
Euroglyphus Maynei

Induction of interleukin 10 by sublingual immunotherapy for house dust mites: a preliminary report

2005 ◽  
Vol 95 (1) ◽  
pp. 38-44 ◽  
Author(s):  
Giorgio Ciprandi ◽  
Daniela Fenoglio ◽  
Ignazio Cirillo ◽  
Andrea Vizzaccaro ◽  
Alessandra Ferrera ◽  
...  
Keyword(s):  
House Dust ◽  
Preliminary Report ◽  
Sublingual Immunotherapy ◽  
Interleukin 10 ◽  
House Dust Mites ◽  
Dust Mites
Sign in / Sign up

Export Citation Format

Share Document