SKU: 63855649767

'-NH2 modified upconverting(yellow-green)

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Description

'-NH2 modified upconverting(yellow-green)Product Name Name: NH2 modified upconverting nanoparticlesyellow green light? span> Product Overview Upconversion nanoparticles (UCNPs) are nanomaterials that can convert low energy light into high energy light. They are composed of inorganic nanocrystals doped with rare earth ions and have unique upconversion luminescence properties. Rare earth upconversion luminescence is based on the 4f electron transition of lanthanide rare earth ions. Currently,

Product Name

Name: -NH2 modified upconverting nanoparticles(yellow-green lightï¼?/span>

Product Overview

Upconversion nanoparticles (UCNPs) are nanomaterials that can convert low-energy light into high-energy light. They are composed of inorganic nanocrystals doped with rare earth ions and have unique upconversion luminescence properties. Rare earth upconversion luminescence is based on the 4f electron transition of lanthanide rare earth ions. Currently, the common upconversion luminescence mechanisms can be summarized into three types: excited state absorption, energy transfer upconversion, and photon avalanche.

The preparation methods of upconversion nanoparticles mainly include coprecipitation method, high-temperature pyrolysis method, hydrothermal method, solvothermal method, sol gel method, etc. In order to widely apply UCNPs in the biomedical field, in addition to improving luminescence efficiency, it is also necessary to functionalize their surfaces to enhance water solubility and biocompatibility, and achieve multifunctionality. The main surface modification methods include ligand exchange (PEG, PEI, etc. with - COOH, - NH2 groups), ligand oxidation, ligand adsorption, layer by layer self-assembly, and silica coating.

Most of the rare earth doped ions in the nuclear nanoparticles are exposed on the crystal surface, which is prone to non radiative energy transfer with the external environment, leading to fluorescence quenching and thus reducing the upconversion luminescence efficiency. The most commonly used method to reduce this quenching process is to wrap an inert shell layer on the surface of doped nanocrystals to form a core-shell structure, which confines the luminescent ions in the internal core. The shell layer increases the distance between the luminescent center ion and the external environment, effectively reducing energy transfer and thus increasing the luminescence efficiency. At present, the most commonly used method is to modify the shell layer in the previously synthesized nuclear layer structure that is the same as the matrix material, such as NaYF: Yb, Er@NaYF4 NaYF4: Yb, Tm@NaYF4.

Technical Parameter

Emission wavelength: 545/660 nm

Excitation wavelength: 975-980nm

Particle diameter: 35 nm

Main components: NaYREF4 (RE:Yb, Er) 

Product Features

Colorful luminescence: By changing the type and concentration of rare earth ions doped, multi-color luminescence from visible light to near-infrared light can be achieved.

Stokes shift is large: Stokes shift refers to the difference between the emission wavelength and the excitation wavelength. The Stokes shift of upconversion nanoparticles is relatively large, which can effectively reduce self absorption and background interference, improve luminescence efficiency and detection sensitivity.

Good photostability: Upconversion nanoparticles have good photostability and can maintain stable luminescence performance under long-term illumination.

Good biocompatibility: Through surface modification, upconversion nanoparticles can be coupled with biomolecules (such as proteins, antibodies, etc.) to achieve biological labeling and detection.

Non damaging to biological tissues: Its excitation light source near-infrared light (980nm or 808nm) has strong light penetration, almost no damage to biological tissues, and no background fluorescence.

Application Fields

Biomedical: Upconversion nanoparticles can serve as biomarkers for cell imaging, biological detection, drug delivery, and other applications. For example, coupling upconversion nanoparticles with antibodies or biomolecules can achieve targeted labeling and detection of specific cells or biomolecules.

Optical imaging: Upconversion nanoparticles can be used for deep tissue imaging, such as in vivo animal imaging. Due to its longer emission wavelength, it can penetrate deeper biological tissues, reduce tissue scattering and self fluorescence interference, and improve imaging clarity and contrast.

Photocatalysis: Upconversion nanoparticles can convert visible light into ultraviolet or near-infrared light, thereby broadening the spectral response range of photocatalytic materials and improving photocatalytic efficiency.

Solar cells: Upconversion nanoparticles can be used to improve the efficiency of solar cells. By combining upconversion nanoparticles with solar cell materials, low-energy photons can be converted into high-energy photons, increasing the absorption and utilization of solar light by the cell.

Related Information

Please e-mail for the detailed characterization data.

E-mail:[email protected] 

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SKU: 63855649767

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4.4 ★★★★★
Based on 12 reviews
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Verified Purchase
Neal
Houston, US
★★★★★ 5
Wonderful pillow and products!
Color: White, Size: Body
I've been using the Snuggle-Pedic pillow for a couple of weeks now, and it is fantastic. It's soft, but the foam is firm and full. It is clearly extremely well made. Everything from Snuggle-Pedic appears to be top quality, right down to the extra little instructional inserts they include with their products. I also purchased the Zipper Removable Cover to make laundering easier. It's just as well made as the pillow. In fact, it's exactly the same as the cover on the pillow except removable due to the zipper. I'm also using the Snuggle-Pedic Organic Cotton Pillow Case, and it too is extremely well made, soft and comfortable. I was a little hesitant about the pillow case when I saw the picture because it almost looked ... too soft for me, sort of like a fleece blanket. Maybe that was just the way I saw the picture, but it's not actually like fleece. It's very soft and comfortable and does stretch a little as opposed to a regular pillow case, as they say in the description, but in a good way and appears very durable. I was concerned that it would stretch out and twist around the pillow, but it doesn't do that at all. It has stayed perfectly fitted to the pillow. From what I've experienced, everything in the descriptions of the Snuggle-Pedic products is true, and all three pieces work perfectly for me. This is the most I've spent on an individual pillow, but I couldn't be more pleased, and I'm planning to replace all my pillows.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 16, 2016
D
Verified Purchase
Derek
Louisville, US
★★★★★ 4
Cool Slumberings
Color: White, Size: Queen
For transparency, I was given this pillowcase to review by Relief Mart. However all views are my own and not biased because of it. I had recently purchased the matching pillow (see my other review) and had the opportunity to try this out. In terms of specs, it's basically made out of the same material as the Snuggle-Pedic Bamboo Shredded Memory Foam Pillow - it even has the same woven design. According to manufacturer claims: 'Soft and Luxurious Kool-Flow® Micro-Vented Bamboo Cover' - The pillowcase material is very soft to the touch, and does have a premium feel to it. It did have a slight 'smell' when it first arrived, however once washed (and air dried) it's not there anymore. 'Unprecedented breathability that allows air to circulate through the pillow' - It definitely keeps a certain 'coolness' and doesn't heat up if you stay in one spot. It makes staying still bearable, as I'm a sleeper always looking for the cooler side of the pillow during the night. As described, it's zippable so you can separately wash it from the pillow, and I can attest that it does keep it's softness and fluffliness after 3 weeks of use. Though I'm very happy with it, there's a couple things to build on in my opinion: - color and texture of fabric. By itself, the look of the pillow makes it seem that there's no pillowcase. So if you're picky about your bedsheets when you make your bed, this pillowcase will probably stick out like a sore thumb. The unsubtle branding and slight off white coloring doesn't help as well. - there's a tag outside the pillowcase near the zipper, and though it doesn't affect it in any way, it can be slightly annoying and aesthetically displeasing as it sticks out a bit. Would suggest placing it on the inside. I would definitely recommend this product, irrespective of the (minor) points above, as this has made my slumbering experience a whole lot better.
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Reviewed in the United States on June 16, 2016
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Verified Purchase
M.H.
New York, US
★★★★★ 5
Great pillow case from a company that cares!
Color: White, Size: Body
The Snuggle-Pedic Body Pillow Case is GREAT and is the perfect pillow case for their body pillow! Feels exactly like the great material that's on the body pillow (soft and breathable) -- and it fits the pillow perfectly! I love that there's a zipper on it as I don't have to deal with the pillow slipping out of the case at all. The case fits perfectly and is the perfect case for the pillow! I read some other reviews where people said they didn't love that the tag/label was on the opposite side of the zipper on the case. But for me this was a non-issue. I cut the tag off and now there's no issue at all. :) Oh, and I have to give a shout out to Snuggle-Pedic and their company....they are awesome! They did offer me a free case in exchange for an honest review. But this isn't what I think they are awesome for. I find them to be a stand up company that is truly there to support their customers! They include a little note when you get the pillow and pillow case giving you their phone number and letting them know they are here to help if we have any questions. And they send an email as well saying they are available if we have any questions and they gave suggestions on how to care for their products. They are quick to respond and truly lovely people. I'm a sucker for supporting good companies....companies that actually truly care about their customers...and this company is that! I highly recommend this product :)
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Reviewed in the United States on June 2, 2016
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Verified Purchase
LanMcG
San Leandro, US
★★★★★ 5
Excellent Customer Service and the Cover is Perfect
Color: White, Size: Queen
I have already purchased 2 of the pillows that go with the Snuggle-Pedic Zipper Removable Pillow Cover. Neither of the pillows I purchased had a zipper on the pillow cases. I bought my pillows at different times, the oldest pillow's case recently didn't do well in the laundry and got somewhat frayed. Not in too horrible condition, but I'm rather OCD. I admit I panicked a bit, I love my pillows! But then I discovered they sell the pillow cases with zippers that would allow me to replace my pillow case and not lose my awesome pillow. Perfect! I bought one. And, I am happy to say, that's just the beginning of my review. A day after purchasing the seller contacted me and explained how the pillow case worked. I was very pleased and grateful - glad I didn't have to struggle with it then rush back and beg for info. Nope, they had it all laid out and made it super easy. I got my pillow case, replaced my torn one and my Snuggle-Pedic pillow is good as new! Excellent service! Excellent Products! I highly recommend them. Oh, and if you haven't tried the Snuggle-Pedic Pillows you are seriously missing out! As a side sleeper, I couldn't live without mine now! Lanette
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Reviewed in the United States on November 9, 2018
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Verified Purchase
TamiP
Dallas, US
★★★★★ 5
Fits like a glove!
Color: White, Size: Queen
I recently had to buy new latex pillows because our old ones were beginning to shred after too many years. The old ones had a really nice cover on them that they came with and lasted as long as the pillows. The new queen size pillows came with a cover meant for a king-size and they were super thin and flimsy. The manufacturer tried to tell me it's so they could shrink in the wash. You can imagine the review I left! I looked at almost every cover Amazon had on the site and decided to bite the bullet and spend more on these. I'm really glad I did. They fit the pillows like a glove and keep the pillowcases from trying to slip off during the night because they're not slick. They're not sticky either and it is easy to put on the pillowcase. They are quite a bit thicker than any other cover I have ever had and do tend to change the density of the pillow just a bit because of it. I'm not having a problem with the change and it is very minor. I will absolutely buy this case again if the need should arise. I can't comment on the allergy stuff because we have latex pillows, to begin with so no allergens. I see people complaining about the zipper and just can't quite understand that but perhaps they changed it before I bought mine. I do have to recommend putting the zipper end into the pillowcase first to protect you from feeling a zipper at night but I do this with any protector not just this one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 7, 2019

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