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Chen JX, Song BB, Gao SQ, Pan MM, Huang HN, Wang DB, Peng HY, Wang YZ. Correction to "Dynamics of the Deformable Fluid Interface Interacting with an Approaching Solid under the Electrostatic Field". Langmuir 2024. [PMID: 38652892 DOI: 10.1021/acs.langmuir.4c01187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
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Chen JX, Song BB, Gao SQ, Pan MM, Huang HN, Wang DB, Peng HY, Wang YZ. Dynamics of the Deformable Fluid Interface Interacting with an Approaching Solid under the Electrostatic Field. Langmuir 2024; 40:6402-6412. [PMID: 38489303 DOI: 10.1021/acs.langmuir.3c03998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/17/2024]
Abstract
A theoretical model was developed to describe the dynamics of a deformable fluid interface interacting with an approaching solid without contact by both the attractive electrostatic and van der Waals (i.e., vdW) interaction, analogous to the situation in the experiments by electric force microscopy (i.e., EFM) or electric-surface force apparatus (i.e., E-SFA) involved in the soft fluid interface. On the basis of this model, a numerical study of the deformation of the fluid interface, the force-vs-separation behavior, and the critical limiting conditions of contact has systematically been carried out. Our results show that the surface pressure induced by the electrostatic interaction plays a more prominent role in the deformation of the fluid interface than the vdW interaction does, and there exists a principal length scale associated with the relative strength of the electrostatic field to the surface tension, affecting the fluid interface shape under the electrostatic field. It was also shown that both the force-distance curves and the corresponding curves of fluid interface deformation peak versus distance for various electrostatic fields satisfy the universal scaling power law. Moreover, an analytical solution to the Euler-Lagrange differential equation governing the deformation of the fluid interface under the external electric field is obtained, and two extended formulas for explicitly describing the principal length scales that respectively characterize the lateral and longitudinal deformations of the fluid interface were determined.
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Affiliation(s)
- J X Chen
- College of Physics and Electronic Engineering, Hainan Normal University, Hainan 571158, China
- Haikou Key Laboratory of Solar Energy and Photovoltaic Application Technology, Hainan 571158, China
- The Innovation Platform for Academicians of Hainan Province, Haikou 571158, China
| | - B B Song
- College of Physics and Electronic Engineering, Hainan Normal University, Hainan 571158, China
- Haikou Key Laboratory of Solar Energy and Photovoltaic Application Technology, Hainan 571158, China
| | - S Q Gao
- College of Physics and Electronic Engineering, Hainan Normal University, Hainan 571158, China
- Haikou Key Laboratory of Solar Energy and Photovoltaic Application Technology, Hainan 571158, China
| | - M M Pan
- College of Physics and Electronic Engineering, Hainan Normal University, Hainan 571158, China
- Haikou Key Laboratory of Solar Energy and Photovoltaic Application Technology, Hainan 571158, China
- The Innovation Platform for Academicians of Hainan Province, Haikou 571158, China
| | - H N Huang
- Department of Mathematics and Statistics, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - D B Wang
- College of Physics and Electronic Engineering, Hainan Normal University, Hainan 571158, China
- Haikou Key Laboratory of Solar Energy and Photovoltaic Application Technology, Hainan 571158, China
- The Innovation Platform for Academicians of Hainan Province, Haikou 571158, China
| | - H Y Peng
- College of Physics and Electronic Engineering, Hainan Normal University, Hainan 571158, China
- Haikou Key Laboratory of Solar Energy and Photovoltaic Application Technology, Hainan 571158, China
- The Innovation Platform for Academicians of Hainan Province, Haikou 571158, China
| | - Y Z Wang
- College of Physics and Electronic Engineering, Hainan Normal University, Hainan 571158, China
- Haikou Key Laboratory of Solar Energy and Photovoltaic Application Technology, Hainan 571158, China
- The Innovation Platform for Academicians of Hainan Province, Haikou 571158, China
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Luo XP, Wei YX, Huang HN, Hu DD, Pang EL. [Pure titanium denture large-span frameworks additively manufactured with selective laser melting]. Zhonghua Kou Qiang Yi Xue Za Zhi 2021; 56:646-651. [PMID: 34275219 DOI: 10.3760/cma.j.cn112144-20210405-00162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the accuracy of pure titanium and cobalt-chromium alloy frameworks fabricated using the additive manufacturing (AM) of selective laser melting technology (SLM) for the mandibular implant-supported fixed prostheses and the maxillary removable partial denture (RPD), and to provide a reference for clinical application of SLM pure titanium frameworks. Methods: One edentulous mandibular model with implants and screw fixed abutments at bilateral canines and the first molars was selected and used as the mandibular full arch implant-supported model. At the same time, a Kennedy class Ⅰ maxillary dentition defect model was selected. The digital models were obtained by scanning the dental models, and the metal frameworks of the mandibular full arch implant-supported denture and the maxillary RPD (design model) were designed using the 3 Shape software. Meanwhile, 12 mandibular frameworks in the cobalt-chromium alloy and the pure titanium (6 in each group were treated with heat treatment, while the other 6 were not treated), and 7 maxillary frameworks in the cobalt-chromium alloy and the pure titanium were respectively made by SLM with the improved dual-laser metal printer. The axial direction of the printing powder accumulation was taken as the Z-axis. During the design process, the software (3Shape Dental System 2018) automatically generated the X-axis and Y-axis, X axis was the sagittal axis of the dental model and Y axis was the coronal axis of the dental model. The deviation of the interface center of the abutment of the digital model of the mandibular frameworks from the design model in the X, Y and Z axes was analyzed. As for the trueness of the mandibular framework, the larger the deviation data was, the worse the trueness was. The deviation of the whole maxillary framework and 7 measuring points (palatal plate center point and bilateral occlusal rests, I bars, proximal plates) were analyzed. The fitness of the whole maxillary framework to the design model was expressed by root mean square (RMS) of the deviation data, and the fitness of measuring points was expressed by the mean±standard deviation of the data. The trueness differences of each group before and after heat treatment of the mandibular framework and the fitness of the maxillary framework were compared. Results: The cobalt-chromium alloy frameworks showed lower trueness on the X, Y, Z-axes [(96.3±12.1), (86.3±11.4), (61.2±13.2) μm] than did the pure Ti frameworks [(82.3±11.2), (72.2±10.2), (51.2±11.6) μm] by SLM, and the heat treatment could reduce the discrepancy between the SLM frameworks and STL models, for pure titanium frameworks [(62.4±11.3), (55.2±13.2), (41.3±10.8) μm] and for cobalt-chromium alloy [(84.5±10.5), (72.3±11.2), (54.2±11.6) μm]. For the thin RPD major frameworks, pure titanium had better fitness [(121.3±17.0) μm] than cobalt-chromium alloy [(174.0±18.3) μm] by SLM, and the difference was statistically significant (P<0.05). Conclusions: Pure titanium frameworks fabricated by SLM additive manufacturing technology exhibited better fitness and trueness than did the Co-Cr frameworks after heat treatment respectively, and this satisfied the requirements of implant-supported fixed prostheses and RPD major metal frameworks.
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Affiliation(s)
- X P Luo
- Department of Prosthodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - Y X Wei
- Department of Prosthodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - H N Huang
- Department of Prosthodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - D D Hu
- Department of Prosthodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - E L Pang
- Nanjing Qianzhi Intelligent Technology Limited Company, Nanjing 211111, China
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Pei YF, Huang HN, Li HC, Wu GG. Identification and sequence analysis of a novel HLA-A*33 allele, HLA-A*33:88. HLA 2016; 88:261-262. [PMID: 27667661 DOI: 10.1111/tan.12902] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 09/05/2016] [Accepted: 09/07/2016] [Indexed: 11/28/2022]
Abstract
HLA-A*33:88 differs from HLA-A*33:03:01 by one nucleotide exchange at position 475, G>A (codon 135 GCG>ACG).
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Affiliation(s)
- Y F Pei
- Nanning Institute of Transfusion Medicine, Nanning Blood Center, Nanning, China.
| | - H N Huang
- Nanning Institute of Transfusion Medicine, Nanning Blood Center, Nanning, China
| | - H C Li
- Nanning Institute of Transfusion Medicine, Nanning Blood Center, Nanning, China
| | - G G Wu
- Nanning Institute of Transfusion Medicine, Nanning Blood Center, Nanning, China
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Pei YF, Huang HN, Li HC, Shen WD. A novel HLA-B*40 allele, B*40:01:40, identified in a Chinese individual. Int J Immunogenet 2016; 43:249-50. [PMID: 27302621 DOI: 10.1111/iji.12279] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 05/10/2016] [Accepted: 05/22/2016] [Indexed: 11/30/2022]
Abstract
A new allele, officially named B*40:01:40, was detected in a Chinese individual by sequence-based typing (SBT). The new allele differs from B*40:01:01 by a single nucleotide exchange at position 99 in codon 9, which results in synonymous substitution and seems not to compromise the HLA complex and T-cell receptor interaction.
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Affiliation(s)
- Y F Pei
- Nanning Institute of Transfusion Medicine, Nanning Blood Center, Nanning, China
| | - H N Huang
- Nanning Institute of Transfusion Medicine, Nanning Blood Center, Nanning, China
| | - H C Li
- Nanning Institute of Transfusion Medicine, Nanning Blood Center, Nanning, China
| | - W D Shen
- Nanning Institute of Transfusion Medicine, Nanning Blood Center, Nanning, China
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Abstract
HLA-A*02:513 shows one nucleotide difference with A*02:07:01 (125G > A).
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Affiliation(s)
- Y F Pei
- Nanning Institute of Transfusion Medicine, Nanning Blood Center, Nanning, China
| | - H N Huang
- Nanning Institute of Transfusion Medicine, Nanning Blood Center, Nanning, China
| | - H C Li
- Nanning Institute of Transfusion Medicine, Nanning Blood Center, Nanning, China
| | - W D Shen
- Nanning Institute of Transfusion Medicine, Nanning Blood Center, Nanning, China
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Pei YF, Huang HN, Li HC, Shen WD. Identification of a novel HLA-DRB1*14 allele, HLA-DRB1*14:150, in a Chinese individual. HLA 2016; 87:407-8. [PMID: 26969342 DOI: 10.1111/tan.12771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 02/13/2016] [Accepted: 02/17/2016] [Indexed: 11/28/2022]
Abstract
HLA-DRB1*14:150 shows one nucleotide difference when compared with DRB1*14:54:01 at codon 49 (A > P).
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Affiliation(s)
- Y F Pei
- Nanning Blood Center, Nanning Institute of Transfusion Medicine, Nanning, China
| | - H N Huang
- Nanning Blood Center, Nanning Institute of Transfusion Medicine, Nanning, China
| | - H C Li
- Nanning Blood Center, Nanning Institute of Transfusion Medicine, Nanning, China
| | - W D Shen
- Nanning Blood Center, Nanning Institute of Transfusion Medicine, Nanning, China
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Ning L, Xue M, Huang HN. [Study on biocompatibility of skin reproductive membrane]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2000; 14:44-8. [PMID: 12024591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
OBJECTIVE To study the biocompatibility of skin reproductive membrane. METHODS According to ISO's standards, the extractions of the skin reproductive membrane were prepared, and the acute systematic toxicity test, primary skin irritant test, cytotoxicity test, gene expression of type I collagen and fibronectin were detected to evaluate the biocompatibility of skin reproductive membrane. RESULTS All of those tests showed negative results. CONCLUSION The skin reproductive membrane has excellent biocompatibility in the level of the systematic, cellular and molecular biology.
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Affiliation(s)
- L Ning
- Shanghai Biomaterials Research and Test Center, Shanghai the Second Medical University, Shanghai, P. R. China 200023
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Huang HN, Tu ZC, Liao S, Zhao SY, Li CB, Huang SZ, Tang TT, Dai KR. [The gene expression of some cytokines and collagen proteins in rat bone tissue is related to estradiol (E2) and age]. Shi Yan Sheng Wu Xue Bao 1999; 32:373-9. [PMID: 12548865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
30 female SD rats (3 months old) are equally divided into three groups: ovariectomy (OVX) rats, sham-operated (SHO) rats and 17 beta estradiol (E2) treated OVX rats. For each group, mRNA was isolated from long bone at one month and three months after surgery, respectively. mRNA was reverse transcribed into single strand cDNA and then used as a probe hybridizing to the DNA fragments of col I alpha(1), col I alpha(2), col III, col V, fibronectin, IL-1, IL-6, TGF-beta, LIF, TNF-alpha, TNF-beta by reverse northern and dot blot hybrization. The housekeeping gene, gapdh, was used as an internal control. The results show that in bone of rat, the stable expression of col I alpha (1), col I alpha(2) and col III are related to age not ovariectomy, while supplement with E2 can inhibit the expression of col III and col I alpha(2) completely. The expression of col V, IL-1, IL-6 can be inhibited by estrogen and recovered by removal of estrogen by OVX, then addition of E2 decreased it to the normal level. The expression of TGF-beta is also inhibited by estrogen. It increased during one month after overiectomy, and partially decreased in E2 complemented rat. Three months after surgery, the level of increasing and decreasing is less evident as two months ago. It seems that in young SD rat, the expression of TGF-beta is related to both estrogen and age.
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Affiliation(s)
- H N Huang
- Institute of Genetics, Fudan University, Shanghai 200433
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Huang HN, Chen TB, Chen RM, Rao PF. [Detection of residual antibiotics in honey by capillary high performance liquid chromatography]. Se Pu 1999; 17:588-9. [PMID: 12552701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023] Open
Abstract
The quantitative analysis of the three antibiotics-tetracycline(TC), oxytetracycline(OTC) and chlortetracyclinum(CTC) was carried out with a self-packed Hypersil C18 150 mm x 0.5 mm i.d. column. As little as 0.5 nanogram of antibiotics can be well detected, the capillary high performance liquid chromatographic method is 100 times more sensitive than that with ordinary HPLC method. The coefficients of linear correlation of mass concentration from 0.5 nanogram to 20 nanogram were rOTC = 0.99695, rTC = 0.99778 and rOTC = 0.98836. It showed that capillary HPLC is a good method used for sensitive analysis of antibiotics in honey.
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Affiliation(s)
- H N Huang
- Institute of Biotechnology, Fuzhou University, Fuzhou 350002, China
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Sotak CH, Hees PS, Huang HN, Hung MH, Krespan CG, Raynolds S. A new perfluorocarbon for use in fluorine-19 magnetic resonance imaging and spectroscopy. Magn Reson Med 1993; 29:188-95. [PMID: 8429782 DOI: 10.1002/mrm.1910290206] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A new perfluorocarbon, PTBD (perfluoro-2,2,2',2'-tetramethyl-4,4'-bis(1,3-dioxolane)), is described for use in 19F MR imaging and spectroscopy. Two-thirds of the molecular fluorine in PTBD resonates at a single frequency and can be imaged without the use of frequency-selective spin-echo (SE) MRI pulse sequences to suppress chemical shift artifacts. The absence of strong homonuclear spin-spin coupling to the imagable -CF3 groups in PTBD minimizes signal attenuation in 19F SE MRI due to J-modulation effects. For equimolar concentrations of perfluorocarbon, PTBD gives an approximately 17% increase in sensitivity, relative to literature results for perfluorinated amines, at short values of TE (approximately 10 ms) in 19F SE MRI. These attributes allow 19F MRI of PTBD to be performed on standard clinical imaging instrumentation (without special hardware and/or software modification) and an in vivo example in a mouse is shown. This investigation involved characterizing the MR T1 and T2 relaxation times of PTBD as well as the MR spin-lattice relaxation rate, R1 (1/T1), of PTBD as a function of dissolved oxygen concentration. The T1 and T2 relaxation times and R1 relaxation rates of perfluorooctyl bromide (PFOB) were also obtained, under similar experimental conditions, to compare and contrast PTBD with a representative perfluorocarbon that has been widely employed for 19F MRI/MRS applications.
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Affiliation(s)
- C H Sotak
- Department of Biomedical Engineering, Worcester Polytechnic Institute, MA 01609
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Lu M, Zheng F, Huang HN. [Morphometric study on sensitization by hematoporphyrin derivative in Ehrlich ascites tumor cells irradiated by gamma-ray]. Zhonghua Zhong Liu Za Zhi 1987; 9:325-7, 19. [PMID: 2968233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In this paper, light and electron micrographs of Ehrlich ascites tumor cells radiated by gamma-ray and influenced by hematoporphyrin derivative (HPD) were analysed by morphometric method. It was found that in these cells, the domain of microfilaments treated by HPD expanded extensively, which enhanced the damage of cells induced by gamma-ray. Twenty five minutes after radiation, the cellular fragments increased, resulting in a decrease in the mean diameter of cells and an increase of nuclear volume density and nucleocytoplasmic ratio. In addition, ribosomes on the rough endoplasmic reticulum surfaces fell off increasingly and the quantity of smooth endoplasmic reticula increased.
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Affiliation(s)
- M Lu
- Beijing Medical University
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Huang HN. Laryngectomy under acupuncture anesthesia. Report of 507 cases. Chin Med J (Engl) 1985; 98:417-20. [PMID: 3932000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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