IP Library Granted Patent US 12,251,101
Granted Patent B1
US 12,251,101 · App. 18/735,698 · Granted Mar 18, 2025

Surgical nano-biothread made from cellulose fiber

Inventors: Abm Sharif Hossain (Riyadh, SA); Hassan Ahmed Alrudayni (Riyadh, SA); Mohammed Saad Aleissa (Riyadh, SA); Fazliny Abdul Rahman (Kota Damansara, MY)
Assignee: IMAM MOHAMMAD IBN SAUD ISLAMIC UNIVERSITY
A61B17/06166A61L17/10C08B15/00C08K5/0041C08L1/02D01D1/02D01F1/06D01F1/10D01F2/02A61B2017/00004C08L2201/06C08L2203/02C08L2203/12C08L2205/025C08L2205/035D10B2201/22D10B2509/04
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Quick Facts
Patent No.
US 12,251,101
App. No.
18/735,698
Granted
Mar 18, 2025
Kind
B1
Abstract

A method of making a surgical biothread from natural cellulose fiber is provided. The method includes making nanoscale cellulose using acid hydrolysis and pyrolysis of a mixture of palm tree stems and banana flower bracts; mixing the nanoscale cellulose with a plasticizer to obtain a nanoscale polymer; and casting the nanoscale polymer using a syringe and needle to obtain the biothread.

Claims (15)

1. A method of making a nanobiothread, comprising:

a. providing a mixture of waste palm tree stems and waste banana flower bracts;

b. acid hydrolyzing the mixture;

c. pyrolyzing the mixture to obtain a nanoscale cellulose blend;

d. mixing the nanoscale cellulose blend with a plasticizer to obtain a nanoscale polymer; and

e. casting the nanoscale polymer using a syringe and needle to obtain the nanobiothread.

2. The method of claim 1 , further comprising washing the mixture and bleaching the mixture prior to acid hydrolyzing the mixture.

3. The method of claim 2 , wherein washing the mixture comprises soaking the mixture in water for about 4 hours.

4. The method of claim 2 , wherein bleaching the mixture comprises soaking the mixture in sodium hypochlorite for about 4 hours.

5. The method of claim 1 , wherein acid hydrolyzing the mixture comprises adding about 75% to about 80% sulphuric acid to the mixture.

6. The method of claim 1 , wherein pyrolyzing the mixture is conducted in an oven at about 135° C. for about 3 hours.

7. The method of claim 1 , wherein mixing the nanoscale cellulose blend with a plasticizer comprises mixing about 48% of the nanoscale cellulose blend with about 5% v/v polyvinyl chloride, about 8% v/v pure cellulose and about 8% v/v starch.

8. The method of claim 7 , further comprising mixing the nanoscale cellulose blend with one or more dyes selected from the group consisting of 5% v/v orange and mango peel dye, 5% v/v turmeric organic dye, and a combination thereof.

9. The method of claim 7 , further comprising mixing the nanoscale cellulose blend with one or more components selected from the group consisting of 4% v/v aloe vera gel, 4% v/v flaxseed gel, 4% v/v arabica gel, 5% v/v waste cooking oil-based glycerin, and a combination thereof.

10. The method of claim 7 , further comprising mixing the nanoscale cellulose blend with 4% v/v natural gum ( Lannea sp.).

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 19, 2024
From: HOSSAIN, ABM SHARIF; ALRUDAYNI, HASSAN AHMED; ALEISSA, MOHAMMED SAAD; RAHMAN, FAZLINY ABDUL
To: IMAM MOHAMMAD IBN SAUD ISLAMIC UNIVERSITY
Reel/Frame 068028/0334 →
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