scholarly journals Correction: Spatiotemporal distribution and speciation of silver nanoparticles in the healing wound

The Analyst ◽  
2021 ◽  
Author(s):  
Marco Roman ◽  
Chiara Rigo ◽  
Hiram Castillo-Michel ◽  
Dagmar S. Urgast ◽  
Jörg Feldmann ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Spatiotemporal Distribution ◽  
Healing Wound

Correction for ‘Spatiotemporal distribution and speciation of silver nanoparticles in the healing wound’ by Marco Roman et al., Analyst, 2020, 145, 6456–6469, DOI: 10.1039/D0AN00607F.

scholarly journals Spatiotemporal distribution and speciation of silver nanoparticles in the healing wound

The Analyst ◽  
2020 ◽  
Vol 145 (20) ◽  
pp. 6456-6469
Author(s):  
Marco Roman ◽  
Chiara Rigo ◽  
Hiram Castillo-Michel ◽  
Dagmar S. Urgast ◽  
Jörg Feldmann ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Spatiotemporal Distribution ◽  
Elemental Imaging ◽  
Healing Wound ◽  
Real Patients

First observation of AgNPs dynamics in the wounds of real patients through elemental imaging and speciation.

scholarly journals Advances in Nanotechnology towards Development of Silver Nanoparticle-Based Wound-Healing Agents

2021 ◽  
Vol 22 (20) ◽  
pp. 11272
Author(s):  
Zimkhitha B. Nqakala ◽  
Nicole R. S. Sibuyi ◽  
Adewale O. Fadaka ◽  
Mervin Meyer ◽  
Martin O. Onani ◽  
...  
Keyword(s):  
Wound Healing ◽  
Silver Nanoparticles ◽  
Silver Nanoparticle ◽  
Broad Spectrum ◽  
Bacterial Resistance ◽  
Wound Care ◽  
Wound Treatment ◽  
Healing Wound ◽  
As Toxicity

Since antiquity, silver-based therapies have been used in wound healing, wound care and management of infections to provide adequate healing. These therapies are associated with certain limitations, such as toxicity, skin discolouration and bacterial resistance, which have limited their use. As a result, new and innovative wound therapies, or strategies to improve the existing therapies, are sought after. Silver nanoparticles (AgNPs) have shown the potential to circumvent the limitations associated with conventional silver-based therapies as described above. AgNPs are effective against a broad spectrum of microorganisms and are less toxic, effective at lower concentrations and produce no skin discolouration. Furthermore, AgNPs can be decorated or coupled with other healing-promoting materials to provide optimum healing. This review details the history and impact of silver-based therapies leading up to AgNPs and AgNP-based nanoformulations in wound healing. It also highlights the properties of AgNPs that aid in wound healing and that make them superior to conventional silver-based wound treatment therapies.

Random isn't real: How the patchy distribution of ecological rewards may generate “incentive hope”

2019 ◽  
Vol 42 ◽  
Author(s):  
Laurel Symes ◽  
Thalia Wheatley
Keyword(s):  
Natural Environment ◽  
Random Distribution ◽  
Spatiotemporal Distribution ◽  
Patchy Distribution ◽  
Distribution Of Resources

AbstractAnselme & Güntürkün generate exciting new insights by integrating two disparate fields to explain why uncertain rewards produce strong motivational effects. Their conclusions are developed in a framework that assumes a random distribution of resources, uncommon in the natural environment. We argue that, by considering a realistically clumped spatiotemporal distribution of resources, their conclusions will be stronger and more complete.

Synthesis, performance and growth mechanism of silver nanoparticle coated SERS fiber probe

2019 ◽  
Vol 107 (3) ◽  
pp. 305
Author(s):  
Mengmei Geng ◽  
Yuting Long ◽  
Tongqing Liu ◽  
Zijuan Du ◽  
Hong Li ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Absorption Spectrum ◽  
Reaction Time ◽  
Growth Mechanism ◽  
Fiber Optic ◽  
Fiber Optic Probe ◽  
Visible Absorption ◽  
Fiber Probe ◽  
Surface Enhanced Raman ◽  
Optic Probe

Surface-enhanced Raman Scattering (SERS) fiber probe provides abundant interaction area between light and materials, permits detection within limited space and is especially useful for remote or in situ detection. A silver decorated SERS fiber optic probe was prepared by hydrothermal method. This method manages to accomplish the growth of silver nanoparticles and its adherence on fiber optic tip within one step, simplifying the synthetic procedure. The effects of reaction time on phase composition, surface plasmon resonance property and morphology were investigated by X-ray diffraction analysis (XRD), ultraviolet-visible absorption spectrum (UV-VIS absorption spectrum) and scanning electron microscope (SEM). The results showed that when reaction time is prolonged from 4–8 hours at 180 °C, crystals size and size distribution of silver nanoparticles increase. Furthermore, the morphology, crystal size and distribution density of silver nanoparticles evolve along with reaction time. A growth mechanism based on two factors, equilibrium between nucleation and growth, and the existence of PVP, is hypothesized. The SERS fiber probe can detect rhodamin 6G (R6G) at the concentration of 10−6 M. This SERS fiber probe exhibits promising potential in organic dye and pesticide residue detection.

Spatiotemporal distribution of foraging in a marine predator: behavioural drivers of hotspot formation

2020 ◽  
Vol 635 ◽  
pp. 187-202
Author(s):  
T Brough ◽  
W Rayment ◽  
E Slooten ◽  
S Dawson
Keyword(s):  
Time Of Day ◽  
Spatiotemporal Distribution ◽  
Temporal Effects ◽  
Marine Predator ◽  
Marine Predators ◽  
Additive Mixed Models ◽  
Density Analysis ◽  
The Times ◽  
Passive Acoustic ◽  
Spatial Locations

Many species of marine predators display defined hotspots in their distribution, although the reasons why this happens are not well understood in some species. Understanding whether hotspots are used for certain behaviours provides insights into the importance of these areas for the predators’ ecology and population viability. In this study, we investigated the spatiotemporal distribution of foraging behaviour in Hector’s dolphin Cephalorhynchus hectori, a small, endangered species from New Zealand. Passive acoustic monitoring of foraging ‘buzzes’ was carried out at 4 hotspots and 6 lower-use, ‘reference areas’, chosen randomly based on a previous density analysis of visual sightings. The distribution of buzzes was modelled among spatial locations and on 3 temporal scales (season, time of day, tidal state) with generalised additive mixed models using 82000 h of monitoring data. Foraging rates were significantly influenced by all 3 temporal effects, with substantial variation in the importance and nature of each effect among locations. The complexity of the temporal effects on foraging is likely due to the patchy nature of prey distributions and shows how foraging is highly variable at fine scales. Foraging rates were highest at the hotspots, suggesting that feeding opportunities shape fine-scale distribution in Hector’s dolphin. Foraging can be disrupted by anthropogenic influences. Thus, information from this study can be used to manage threats to this vital behaviour in the locations and at the times where it is most prevalent.

The Effect of Silver Nanoparticles on Blood Cells in Rats

2012 ◽  
Vol 1 (1) ◽  
Author(s):  
S. Rezaei-Zarchi ◽  
M. Taghavi-Foumani ◽  
S. Razavi Sheshdeh ◽  
M. Negahdary ◽  
G. Rahimi
Keyword(s):  
Silver Nanoparticles ◽  
Blood Cells
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