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Open for Application M.Sc.and Ph.D Academic Year 2/2023 FSci KMUTT https://lnkd.in/gnZ4JZBM

rayyan17

SUBJECT

The superior physicochemical ambiance provided by Chitin/Carboxylated Chitosan for the formation of hydroxyapatite film

DEPARTMENT

Department of Chemical Engineering

PROFESSOR AND STUDENT

Professor：Ten-Chin Wen

Student：Wei-Cheng Li

ABSTRACT

Chitosan (CS) and chitin (CH) are two natural polysaccharides. Chitosan with different carboxylation degrees rendering specific zwitterionic properties. In this study, carboxylated chitosan (CCS) and CH polymeric matrix was mineralized to form an hydroxyapatite film.

CS grafted carboxylated group at pH 6, 8, and 10 for products denoted as CCS6, CCS8, CCS10. It was the better degrees of carboxylated, the higher ion conductivity. CCS with zwitterion helped ions movement. Based on thermogravimetric analysis, thermal cracking temperature of the amide group on chitin increased after mineralization. In the TEM image, the PILP behavior was found, and formed hexagonal hydroxyapatite beside chitin. The Young's modulus of hydroxyapatite evaluated by AFM was 5.19±0.06GPa. Meanwhile, Ca/P ratio by EDX analysis was 1.65, similar to bones.

Original URL: 15-Student：Department of Chemical Engineering【Wei-Cheng Li】-Undergraduate Research , NCKU https://en.ur.ncku.edu.tw/book/15-Student:Department+of+Chemical+Engineering%E3%80%90Wei-Cheng+Li%E3%80%91/

The copyright belongs to the author. For commercial reprints, please contact the author for authorization, and for non-commercial reprints, please indicate the source.

SUBJECT

The superior physicochemical ambiance provided by Chitin/Carboxylated Chitosan for the formation of hydroxyapatite film

DEPARTMENT

Department of Chemical Engineering

PROFESSOR AND STUDENT

Professor：Ten-Chin Wen

Student：Wei-Cheng Li

ABSTRACT

Chitosan (CS) and chitin (CH) are two natural polysaccharides. Chitosan with different carboxylation degrees rendering specific zwitterionic properties. In this study, carboxylated chitosan (CCS) and CH polymeric matrix was mineralized to form an hydroxyapatite film.

CS grafted carboxylated group at pH 6, 8, and 10 for products denoted as CCS6, CCS8, CCS10. It was the better degrees of carboxylated, the higher ion conductivity. CCS with zwitterion helped ions movement. Based on thermogravimetric analysis, thermal cracking temperature of the amide group on chitin increased after mineralization. In the TEM image, the PILP behavior was found, and formed hexagonal hydroxyapatite beside chitin. The Young's modulus of hydroxyapatite evaluated by AFM was 5.19±0.06GPa. Meanwhile, Ca/P ratio by EDX analysis was 1.65, similar to bones.

Original URL: 15-Student：Department of Chemical Engineering【Wei-Cheng Li】-Undergraduate Research , NCKU https://en.ur.ncku.edu.tw/book/15-Student:Department+of+Chemical+Engineering%E3%80%90Wei-Cheng+Li%E3%80%91/

The copyright belongs to the author. For commercial reprints, please contact the author for authorization, and for non-commercial reprints, please indicate the source.

rayyan17

SUBJECT

Electrodeposition of Pore-Confined Molybdenum Sulfide in Metal-Organic Framework Thin Films for Hydrogen Evolution Reaction

DEPARTMENT

Department of Chemical Engineering

PROFESSOR AND STUDENT

Professor：Chung-Wei Kung

Student：YOU-LIANG,CHEN

ABSTRACT

本研究把以鋯為基底的金屬有機骨架(Metal－Organic Framework, MOF)薄膜生長在導電基板上，並以週期性間歇定電流法在電鍍液中將硫化鉬電鍍在具有MOF的導電基板上。因MOF不具導電性且孔洞互相連通，故電鍍後可得被孔洞侷限、高表面積的硫化鉬。由於硫化鉬可電催化水還原，預期此電極材料將具備優異的催化產氫效率。由實驗結果可知，電鍍後的MOF結晶性完好但無法有效提升硫化鉬的催化產氫效率，推測是硫化鉬前驅物難以進入MOF的孔洞中。因此本研究將轉換合成法以增加催化劑表面積，先以Solvothermal deposition in MOF (SIM)法將鈷離子鍵結在Zr-MOF的節點之上，接著進行硫化將節點上的鈷離子轉化成硫化鈷奈米粒子並侷限在MOF的孔洞中，此法將可得侷限在PCN-222孔洞中具高比表面積的硫化鈷奈米粒子，而此硫化鈷奈米粒子預期可進一步提高硫化鈷的催化活性。

Original URL: 03-Stud：Department of Chemical Eng【YOU-LIANG,CHEN】-Undergraduate Research , NCKU https://en.ur.ncku.edu.tw/book/03-Stud:Department+of+Chemical+Eng%E3%80%90YOU-LIANG,CHEN%E3%80%91/

The copyright belongs to the author. For commercial reprints, please contact the author for authorization, and for non-commercial reprints, please indicate the source.

SUBJECT

Electrodeposition of Pore-Confined Molybdenum Sulfide in Metal-Organic Framework Thin Films for Hydrogen Evolution Reaction

DEPARTMENT

Department of Chemical Engineering

PROFESSOR AND STUDENT

Professor：Chung-Wei Kung

Student：YOU-LIANG,CHEN

ABSTRACT

本研究把以鋯為基底的金屬有機骨架(Metal－Organic Framework, MOF)薄膜生長在導電基板上，並以週期性間歇定電流法在電鍍液中將硫化鉬電鍍在具有MOF的導電基板上。因MOF不具導電性且孔洞互相連通，故電鍍後可得被孔洞侷限、高表面積的硫化鉬。由於硫化鉬可電催化水還原，預期此電極材料將具備優異的催化產氫效率。由實驗結果可知，電鍍後的MOF結晶性完好但無法有效提升硫化鉬的催化產氫效率，推測是硫化鉬前驅物難以進入MOF的孔洞中。因此本研究將轉換合成法以增加催化劑表面積，先以Solvothermal deposition in MOF (SIM)法將鈷離子鍵結在Zr-MOF的節點之上，接著進行硫化將節點上的鈷離子轉化成硫化鈷奈米粒子並侷限在MOF的孔洞中，此法將可得侷限在PCN-222孔洞中具高比表面積的硫化鈷奈米粒子，而此硫化鈷奈米粒子預期可進一步提高硫化鈷的催化活性。

Original URL: 03-Stud：Department of Chemical Eng【YOU-LIANG,CHEN】-Undergraduate Research , NCKU https://en.ur.ncku.edu.tw/book/03-Stud:Department+of+Chemical+Eng%E3%80%90YOU-LIANG,CHEN%E3%80%91/

The copyright belongs to the author. For commercial reprints, please contact the author for authorization, and for non-commercial reprints, please indicate the source.

rayyan17

中文

02-Student：Department of Chemical 【Chih-Chi Chang】

Home Poster Contest 02-Student：Department of Chemical 【Chih-Chi Chang】

ENTRY NUMBER：02

SUBJECT

Development of Gallic acid/Curcumin-Loaded Microneedles with Anti-oxidant and Anti-inflammatory Effects

DEPARTMENT

Department of Chemical Engineering

PROFESSOR AND STUDENT

Professor：Mei-Chin Chen

Student：Chih-Chi Chang

ABSTRACT

異位性皮膚炎(Atopic Dermatitis, AD)是一種常見的慢性及反覆發炎之皮膚病。當人體自由基過多時造成之氧化壓力，是造成 AD 的重要因素之一。天然多酚類物質可透過捕捉自由基以及活性氧分子，達到降低氧化壓力以減緩 AD 之症狀。本研究利用雙層式微針，包覆兩種親疏水多酚類藥物，設計出 Gallic acid/Curcumin 複合式微針(GA/Cur MN)。針尖層(上層)為包覆疏水性 Curcumin 之聚乳酸‒羥基乙酸共聚物[Poly(Lactic-co-Glycolic Acid), PLGA]層，下層則以Hyaluronic Acid(HA)包覆親水性 GA。當微針刺進皮膚 5 分鐘後，親水性 HA 溶解可快速釋放GA，以抑制發炎的症狀，同時 HA 給予皮膚保水的效果；疏水性 PLGA 針尖，則能夠鑲嵌入皮膚內緩釋 Curcumin，以長效抗氧化並減少給藥次數。

Original URL: 02-Student：Department of Chemical 【Chih-Chi Chang】-Undergraduate Research , NCKU https://en.ur.ncku.edu.tw/book/02-Student:Department+of+Chemical+%E3%80%90Chih-Chi+Chang%E3%80%91/

The copyright belongs to the author. For commercial reprints, please contact the author for authorization, and for non-commercial reprints, please indicate the source.

中文

02-Student：Department of Chemical 【Chih-Chi Chang】

Home Poster Contest 02-Student：Department of Chemical 【Chih-Chi Chang】

ENTRY NUMBER：02

SUBJECT

Development of Gallic acid/Curcumin-Loaded Microneedles with Anti-oxidant and Anti-inflammatory Effects

DEPARTMENT

Department of Chemical Engineering

PROFESSOR AND STUDENT

Professor：Mei-Chin Chen

Student：Chih-Chi Chang

ABSTRACT

異位性皮膚炎(Atopic Dermatitis, AD)是一種常見的慢性及反覆發炎之皮膚病。當人體自由基過多時造成之氧化壓力，是造成 AD 的重要因素之一。天然多酚類物質可透過捕捉自由基以及活性氧分子，達到降低氧化壓力以減緩 AD 之症狀。本研究利用雙層式微針，包覆兩種親疏水多酚類藥物，設計出 Gallic acid/Curcumin 複合式微針(GA/Cur MN)。針尖層(上層)為包覆疏水性 Curcumin 之聚乳酸‒羥基乙酸共聚物[Poly(Lactic-co-Glycolic Acid), PLGA]層，下層則以Hyaluronic Acid(HA)包覆親水性 GA。當微針刺進皮膚 5 分鐘後，親水性 HA 溶解可快速釋放GA，以抑制發炎的症狀，同時 HA 給予皮膚保水的效果；疏水性 PLGA 針尖，則能夠鑲嵌入皮膚內緩釋 Curcumin，以長效抗氧化並減少給藥次數。

Original URL: 02-Student：Department of Chemical 【Chih-Chi Chang】-Undergraduate Research , NCKU https://en.ur.ncku.edu.tw/book/02-Student:Department+of+Chemical+%E3%80%90Chih-Chi+Chang%E3%80%91/

The copyright belongs to the author. For commercial reprints, please contact the author for authorization, and for non-commercial reprints, please indicate the source.

#chemical engineering

#chemical engineering #chemistry

Alhamdulillah, Thanks to God Our article has been accepted in the South African Journal of Chemical Engineering, Q1 on Scopus (H-Index 22). Title: Remediation of contaminated sand by Cd ions with variation operation: Batch and flushing column with foam and without foam of SDS Surfactant Author: Bode Haryanto*, Rondang Tambun, Siswarni MZ, Vikram Alexander and Tubagus RF Sinuhaji Department of Chemical Engineering, Universitas Sumatera Utara, Padang Bulan, Medan 20155, Indonesia *Correspondence: [email protected] Early Access: https://www.sciencedirect.com/science/article/pii/S1026918523000227?via%3Dihub https://doi.org/10.1016/j.sajce.2023.03.004 https://www.instagram.com/p/Cp70Cr1rCMEy-p4zZKH5iqDNZiHRaNFtad3mpI0/?igshid=NGJjMDIxMWI=

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Tubagus Rayyan Fitra Sinuhaji 拉揚孫