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Immunological properties of Andean starch films are independent of their nanometric roughness and stiffness

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Starch is a natural material extracted from roots, seeds, stems and tubers of different plants. It can be processed as a thermoplastic to produce a variety promising products for biomedical applications, including foams, sheets and films. In the present work, we investigated the immunological properties of microfilms prepared with starches extracted from six different types of Andean potatoes and their relationship with the different film-surface features. We confirmed the biocompatibility of all the films using THP-1 human monocytes, noticing only slight decrease in cell viability in two of the tested starches. We also analyzed pro-inflammatory cytokine release and immune cell surface receptor modulation on THP-1 plated onto the films. Our data show differences in the immunological profile of the same cells cultured onto the different starch films. Furthermore, we examined whether the dissimilar stiffness or the nanometric roughness of the films might influence the immune stimulation of the THP-1 monocytes. Our results demonstrate no correlation between cultured THP-1 immune activation and surface film characteristics. We conclude that different Andean native potato starch films have specific ability to interact with cell membranes of immune cells, conceivably due to the different spatial localization of amylose and amylopectin in the diverse starches.

This article originally appeared in International Journal of Biological Macromolecules 75 2015, Pages 460-466.

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Sign up or log in to your free Materials Today account to download the full article.

Starch is a natural material extracted from roots, seeds, stems and tubers of different plants. It can be processed as a thermoplastic to produce a variety promising products for biomedical applications, including foams, sheets and films. In the present work, we investigated the immunological properties of microfilms prepared with starches extracted from six different types of Andean potatoes and their relationship with the different film-surface features. We confirmed the biocompatibility of all the films using THP-1 human monocytes, noticing only slight decrease in cell viability in two of the tested starches. We also analyzed pro-inflammatory cytokine release and immune cell surface receptor modulation on THP-1 plated onto the films. Our data show differences in the immunological profile of the same cells cultured onto the different starch films. Furthermore, we examined whether the dissimilar stiffness or the nanometric roughness of the films might influence the immune stimulation of the THP-1 monocytes. Our results demonstrate no correlation between cultured THP-1 immune activation and surface film characteristics. We conclude that different Andean native potato starch films have specific ability to interact with cell membranes of immune cells, conceivably due to the different spatial localization of amylose and amylopectin in the diverse starches.

This article originally appeared in International Journal of Biological Macromolecules 75 2015, Pages 460-466.

Sign up or log in to your free Materials Today account to download the full article.

Source: https://www.materialstoday.com/biomaterials/features/immunological-properties-of-andean-starch-films/

Metal

Brazilian HDG exports and domestic offers increase

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Information Provided By:

SteelOrbis Elektronik Pazaryeri A.Ş. (“SteelOrbis”)
19 Mayıs Mahallesi, Atatürk Caddesi
Şeref Yazgan İş Merkezi, No: 72, Kat: 7, D: 18
Kozyatağı – 34736
Istanbul, Turkey

Trade Registration Number : 541892
MERSİS Number : 0470048178400014
Customer Relations Officer : Sinem Alpkaya
Tel : +90 216 468 10 50
Fax : +90 216 386 41 08

This Information Form has been drawn up in order to provide information to the customer (“Customer”) who seeks a free trial on an electronic environment for the purpose of benefiting from the services offered by the SteelOrbis website at “www.steelorbis.com” prior to acceptance of the Membership Contract, and it allows the Customer to gain clear information on the terms and conditions of the membership to be established as well as to review the text of the Contract in question.

The following successive steps shall be taken in order to establish a free trial:

– The Customer selects the “Free Trial” option on the home page at https://www.steelorbis.com.
– The Customer provides all information requested in the “Free Trial Application” form displayed on the screen and confirms it.
– SteelOrbis sends an account activation e-mail to the e-mail address of the Customer provided in the application form.
– The Customer clicks on the activation link sent to his/her e-mail address and activates his/her account. The website Membership Contract is presented to the Customer during the account activation process.

Storage of the Membership Contract:

You can either save the Membership Contract on your computer or make print-outs of it for storage. The Membership Contract accepted and confirmed by the Customer is not kept by SteelOrbis. You can always get access to the standard Membership Contract displayed on the website. However, as amendments may be made to the standard Contract, it may include some variations in comparison with the text approved by you. Accordingly, it may not be possible for you to access on the website the text you originally approved.

Data entry errors:

The information you should provide for membership application and the fields you should fill in are indicated during each step of the operation. You are obliged to provide such information. If you leave the required fields blank, the system will issue a warning. Please fill in all necessary fields. Prior to the completion of the operation, all data entered by you in the previous step will be displayed once more. Please make sure that the information provided by you is accurate and complete before finally confirming the operation; any missing or incorrect information should be completed or corrected. Any amendment or correction on the information provided by you after the confirmation may be performed by means of website logins after the establishment of the membership.

Our confidentiality policy:

Please click here to review our confidentiality policy.

Source: https://www.steelorbis.com/steel-prices/steel-prices-market-analyses/flats-and-slab/brazilian-hdg-exports-and-domestic-offers-increase-1174234.htm

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Metal

Brazilian HDG exports and domestic offers increase

Republished by Plato

Published

on


Information Provided By:

SteelOrbis Elektronik Pazaryeri A.Ş. (“SteelOrbis”)
19 Mayıs Mahallesi, Atatürk Caddesi
Şeref Yazgan İş Merkezi, No: 72, Kat: 7, D: 18
Kozyatağı – 34736
Istanbul, Turkey

Trade Registration Number : 541892
MERSİS Number : 0470048178400014
Customer Relations Officer : Sinem Alpkaya
Tel : +90 216 468 10 50
Fax : +90 216 386 41 08

This Information Form has been drawn up in order to provide information to the customer (“Customer”) who seeks a free trial on an electronic environment for the purpose of benefiting from the services offered by the SteelOrbis website at “www.steelorbis.com” prior to acceptance of the Membership Contract, and it allows the Customer to gain clear information on the terms and conditions of the membership to be established as well as to review the text of the Contract in question.

The following successive steps shall be taken in order to establish a free trial:

– The Customer selects the “Free Trial” option on the home page at https://www.steelorbis.com.
– The Customer provides all information requested in the “Free Trial Application” form displayed on the screen and confirms it.
– SteelOrbis sends an account activation e-mail to the e-mail address of the Customer provided in the application form.
– The Customer clicks on the activation link sent to his/her e-mail address and activates his/her account. The website Membership Contract is presented to the Customer during the account activation process.

Storage of the Membership Contract:

You can either save the Membership Contract on your computer or make print-outs of it for storage. The Membership Contract accepted and confirmed by the Customer is not kept by SteelOrbis. You can always get access to the standard Membership Contract displayed on the website. However, as amendments may be made to the standard Contract, it may include some variations in comparison with the text approved by you. Accordingly, it may not be possible for you to access on the website the text you originally approved.

Data entry errors:

The information you should provide for membership application and the fields you should fill in are indicated during each step of the operation. You are obliged to provide such information. If you leave the required fields blank, the system will issue a warning. Please fill in all necessary fields. Prior to the completion of the operation, all data entered by you in the previous step will be displayed once more. Please make sure that the information provided by you is accurate and complete before finally confirming the operation; any missing or incorrect information should be completed or corrected. Any amendment or correction on the information provided by you after the confirmation may be performed by means of website logins after the establishment of the membership.

Our confidentiality policy:

Please click here to review our confidentiality policy.

Source: https://www.steelorbis.com/steel-prices/steel-prices-market-analyses/flats-and-slab/brazilian-hdg-exports-and-domestic-offers-increase-1174234.htm

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Metal

USITC votes to maintain antidumping duties on non-oriented electrical steel

The United States International Trade Commission (USITC) last week voted to maintain antidumping duties on non-oriented electrical steel. The MetalMiner 2021 Annual Outlook consolidates our 12-month…

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antidumping duty

MQ-Illustrations/Adobe Stock

The United States International Trade Commission (USITC) last week voted to maintain antidumping duties on non-oriented electrical steel.

The MetalMiner 2021 Annual Outlook consolidates our 12-month view and provides buying organizations with a complete understanding of the fundamental factors driving prices and a detailed forecast that can be used when sourcing metals for 2021 — including expected average prices, support and resistance levels.

USITC rules in five-year sunset review on antidumping duties

The USITC conducted a five-year sunset review of antidumping duties on non-oriented electrical steel (NOES). The review covered imports from China, Germany, Japan, Korea, Sweden and Taiwan.

Manufacturers use NOES in such applications as electric generators and motors.

Last week, the USITC said revoking the duties would likely result in “continuation or recurrence of material injury.”

Furthermore, the UISTC opted to maintain existing countervailing duties on imports from China and Taiwan.

Per the Uruguay Round Agreements Act, the Department of Commerce must revoke an antidumping duty or countervailing duty order after five years unless doing so would lead to “continuation or recurrence of dumping or subsidies” and “of material injury … within a reasonably foreseeable time.”

The USITC initiated the review process Nov. 1, 2019.

However, the initial investigation began in 2013 after AK Steel filed petitions with the Department of Commerce and USITC.

GOES Section 232 pending

As we noted earlier this month, Cleveland-Cliffs, which acquired AK Steel earlier this year, expressed optimism that the Trump administration would take Section 232 action related to grain-oriented electrical steel.

Meanwhile, in May, the Department of Commerce launched a Section 232 investigation covering imports of laminations and wound cores for use in transformers, electrical transformers and transformer regulators.

“President Trump’s Administration will be moving forward with a Section 232 action implementing a remedy covering imported laminations and cores of Grain Oriented Electrical Steel (GOES),” Cleveland-Cliffs said in a release dated Nov. 2.

However, the Trump administration has yet to make a formal announcement of action in the investigation.

The United States Trade Representative USTR), however, did announce a preemptive exclusion for Mexican exporters after negotiations on transshipment of GOES materials from outside of North America through Mexico.

Mexico will establish a “strict monitoring regime” for exports of electrical transformer laminations and cores made of non-North American GOES. Per the agreement, Mexico would begin monitoring the shipments this quarter.

AK Steel is the lone U.S. producer of GOES.

You want more MetalMiner on your terms. Sign up for weekly email updates today.

Source: http://feedproxy.google.com/~r/agmetalminer/~3/DiOrjBBdoAs/

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