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Nanocomposite materials in orthopedic applications
Mostafa R. Shirdar, Nasim Farajpour, Reza Shahbazian-Yassar, Tolou Shokuhfar
《化学科学与工程前沿(英文)》 2019年 第13卷 第1期 页码 1-13 doi: 10.1007/s11705-018-1764-1
This chapter is an introduction to nanocomposite materials and its classifications with emphasis on orthopedic application. It covers different types of matrix nanocomposites including ceramics, metal, polymer and natural-based nanocomposites with the main features and applications in the orthopedic. In addition, it presents structure, composition, and biomechanical features of bone as a natural nanocomposite. Finally, it deliberately presents developing methods for nanocomposites bone grafting.
关键词: nanocomposite materials orthopedic applications bone grafting nanocomposites nanocomposites classification
Polymeric nanocomposites for electrocaloric refrigeration
《能源前沿(英文)》 2023年 第17卷 第4期 页码 450-462 doi: 10.1007/s11708-022-0858-0
Polyaniline‒polypyrrole nanocomposites using a green and porous wood as support for supercapacitors
Jian LI, Yue JIAO
《农业科学与工程前沿(英文)》 2019年 第6卷 第2期 页码 137-143 doi: 10.15302/J-FASE-2019257
Wood is an ideal type of support material whose porous structure and surface functional groups are beneficial for deposition of various guest substances for different applications. In this paper, wood is employed as a porous support, combined with two kinds of conductive polymers (i.e., polyaniline (PANI) and polypyrrole (PPy)) using an easy and fast liquid polymerization method. Scanning electron microscope observations indicate that the PANI‒PPy complex consists of nanoparticles with a size of ~20 nm. The interactions between oxygen-containing groups in the wood and the nitrogen composition of PANI‒PPy were verified by Fourier transform infrared spectroscopy. The self-supported PANI‒PPy/wood composite is capable of acting as a free-standing supercapacitor electrode, which delivers a high gravimetric specific capacitance of 360 F·g at 0.2 A·g .
关键词: wood polypyrrole polyaniline supercapacitors nanocomposites
Ming Zhao, Run Liu, Jian Luo, Yan Sun, Qinghong Shi
《化学科学与工程前沿(英文)》 2019年 第13卷 第1期 页码 120-132 doi: 10.1007/s11705-018-1730-y
关键词: polymer-grafted ionic exchanger grafting technique protein adsorption atom transfer radical polymerization γ-globulin
Liver cell therapies: cellular sources and grafting strategies
《医学前沿(英文)》 2023年 第17卷 第3期 页码 432-457 doi: 10.1007/s11684-023-1002-1
关键词: liver regeneration hepatocytes cholangiocytes stem cells organoids regulatory mechanisms transplantation/grafting strategies
Current advances for bone regeneration based on tissue engineering strategies
Rui Shi, Yuelong Huang, Chi Ma, Chengai Wu, Wei Tian
《医学前沿(英文)》 2019年 第13卷 第2期 页码 160-188 doi: 10.1007/s11684-018-0629-9
关键词: bone tissue engineering stem cell bone scaffold growth factor bone regeneration
《化学科学与工程前沿(英文)》 2023年 第17卷 第7期 页码 867-879 doi: 10.1007/s11705-022-2277-5
关键词: polydopamine pollutant removal thermodynamic phenolic pollutants immobilized laccase
Polyolefin-nanocomposites with special properties by in-situ polymerization
Walter Kaminsky
《化学科学与工程前沿(英文)》 2018年 第12卷 第3期 页码 555-563 doi: 10.1007/s11705-018-1715-x
Exceptionally strong polyolefin nanocomposites are synthesized by in-situ polymerization using soluble metallocene/methylaluminoxane (MAO) as catalysts in a two-step process. First, the soluble metallocene/MAO or other single site catalysts are absorbed on the surface of the nanofillers. Then by addition of ethene or propene, a polyolefin film is formed, covering the nanoparticles, layered silicates, or fibers. The resulting polyethylene and polypropylene nanocomposites are characterized by better physical and chemical properties such as stiffness, gas barrier properties, degradation temperatures, and crystallization rates. They show better mechanical properties than materials produced by mechanical blending. The thickness of the polyolefin can be controlled by the pressure of ethene or propene and by the polymerization time. Carbon fibers and carbon nanotubes are covered with isotactic or syndiotactic polypropylene. Because of the hydrophobic character of the carbon surface, the polymer is drawn on the fiber. This leads to a reinforced combined polymer with special properties. The crystallization temperature is 10 °C higher and therefore the crystallization rate up to 20 times faster than that of pure syndiotactic polypropylene. The form stability increases by 100% if 3 wt-% of carbon nanotubes are incorporated.
关键词: polyolefin nanocomposites metallocenes methylaluminoxane
Trihydrazinotriazine-grafting Fe
Jamal Rahimi, Seyedeh Shadi Mirmohammadi, Ali Maleki
《化学科学与工程前沿(英文)》 2021年 第15卷 第4期 页码 1008-1020 doi: 10.1007/s11705-020-1996-8
关键词: trihydrazino-triazine porous magnetic nanocatalyst green chemistry tetrahydrobenzo[b]pyrans
FGF13 suppresses acute myeloid leukemia by regulating bone marrow niches
《医学前沿(英文)》 2022年 第16卷 第6期 页码 896-908 doi: 10.1007/s11684-022-0944-z
关键词: acute myeloid leukemia FGF13 prognosis immune-related genes bone marrow niches
SinoSCORE: a logistically derived additive prediction model for post-coronary artery bypass grafting
null
《医学前沿(英文)》 2013年 第7卷 第4期 页码 477-485 doi: 10.1007/s11684-013-0284-0
This study aims to construct a logistically derived additive score for predicting in-hospital mortality risk in Chinese patients undergoing coronary artery bypass surgery (CABG). Data from 9839 consecutive CABG patients in 43 Chinese centers were collected between 2007 and 2008 from the Chinese Coronary Artery Bypass Grafting Registry. This database was randomly divided into developmental and validation subsets (9:1). The data in the developmental dataset were used to develop the model using logistic regression. Calibration and discrimination characteristics were assessed using the validation dataset. Thresholds were defined for each model to distinguish different risk groups. After excluding 275 patients with incomplete information, the overall mortality rate of the remaining 9564 patients was 2.5%. The SinoSCORE model was constructed based on 11 variables: age, preoperative NYHA stage III or IV, chronic renal failure, extracardiac arteriopathy, chronic obstructive pulmonary disease, preoperative atrial fibrillation or flutter (within 2βweeks), left ventricular ejection fraction, other elective surgery, combined valve procedures, preoperative critical state, and BMI. In the developmental dataset, calibration using a Hosmer-Lemeshow (HL) test was at =β0.44 and discrimination based on the area under the receiver operating characteristic curve (ROC) was 0.80. In the validation dataset, the HL test was at =β0.34 and the area under the ROC (AUC) was 0.78. A logistically derived additive model for predicting in-hospital mortality among Chinese patients undergoing CABG was developed based on the most up-to-date multi-center data from China.
关键词: coronary artery bypass grafting risk stratification in-hospital mortality
Autologous bone marrow stem cell transplantation for the treatment of ulcerative colitis complicated
null
《医学前沿(英文)》 2016年 第10卷 第4期 页码 522-526 doi: 10.1007/s11684-016-0485-4
Ulcerative colitis (UC) is a chronic inflammatory bowel disease with continuous or recurrent symptoms. A 42-year-old male patient with intermittent diarrhea accompanied by bloody mucopurulent stools was admitted to our hospital. The diagnosis of UC was confirmed by a combination of laboratory examination, colonoscopy, and histological assay. The patient developed herpes zoster in the hospital, which challenged traditional treatments. Therefore, we performed an autologous bone marrow cells to modulate the immune system with his permission. Autologous bone marrow mononuclear cells were collected and injected locally into the bowel mucosa, and subsequently injected systemically through a peripheral vein. After the patient underwent auto bone marrow mononuclear cells transplantations twice, the patient’s symptoms were alleviated. Furthermore, he recovered from hematochezia, and his hypersensitive C reactive protein decreased. Colonoscopy results showed reduced lesions and decreased areas with bleeding and edema in the sigmoid colon and rectum. No recurrence occurred in the subsequent two years, but long-time monitoring is still necessary for the prophylaxis of colorectal cancer.
关键词: autograft bone marrow stem cells ulcerative colitis cell therapy
Machinability of ultrasonic vibration-assisted micro-grinding in biological bone using nanolubricant
《机械工程前沿(英文)》 2023年 第18卷 第1期 doi: 10.1007/s11465-022-0717-z
关键词: micro-grinding biological bone ultrasonic vibration (UV) nanoparticle jet mist cooling (NJMC) grinding force grinding temperature
Hybrid polymer biomaterials for bone tissue regeneration
Bo Lei, Baolin Guo, Kunal J. Rambhia, Peter X. Ma
《医学前沿(英文)》 2019年 第13卷 第2期 页码 189-201 doi: 10.1007/s11684-018-0664-6
关键词: hybrid polymer bone regeneration tissue engineering biomaterials
《化学科学与工程前沿(英文)》 2023年 第17卷 第10期 页码 1470-1483 doi: 10.1007/s11705-023-2329-5
关键词: forward osmosis membrane graphene oxide quantum dots graft modification anti-fouling membrane XDLVO theory
标题 作者 时间 类型 操作
Nanocomposite materials in orthopedic applications
Mostafa R. Shirdar, Nasim Farajpour, Reza Shahbazian-Yassar, Tolou Shokuhfar
期刊论文
Polyaniline‒polypyrrole nanocomposites using a green and porous wood as support for supercapacitors
Jian LI, Yue JIAO
期刊论文
Fabrication of high-capacity cation-exchangers for protein adsorption: Comparison of grafting-from andgrafting-to approaches
Ming Zhao, Run Liu, Jian Luo, Yan Sun, Qinghong Shi
期刊论文
Current advances for bone regeneration based on tissue engineering strategies
Rui Shi, Yuelong Huang, Chi Ma, Chengai Wu, Wei Tian
期刊论文
Immobilization of laccase on organic–inorganic nanocomposites and its application in the removal of phenolic
期刊论文
SinoSCORE: a logistically derived additive prediction model for post-coronary artery bypass grafting
null
期刊论文
Autologous bone marrow stem cell transplantation for the treatment of ulcerative colitis complicated
null
期刊论文
Machinability of ultrasonic vibration-assisted micro-grinding in biological bone using nanolubricant
期刊论文
Hybrid polymer biomaterials for bone tissue regeneration
Bo Lei, Baolin Guo, Kunal J. Rambhia, Peter X. Ma
期刊论文